Changed SideTab check in AutoHideDockContainer::eventFilter to improve performance a little bit

The bug caused ""setGeometry: Unable to set geometry XxY+Width+Height on QWidgetWindow/'WidgetClassWindow" warnings for OpenGL and QAxWidgets and causes resizing issues for AutoHideDockContainers that contained theses widgets

CMakeLists.txt

@@ -1,20 +1,41 @@
 cmake_minimum_required(VERSION 3.5)
-set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules ${CMAKE_MODULE_PATH})
-include(GetGitRevisionDescription)
-git_describe(GitTagVersion --tags)
-string(REGEX REPLACE "^([0-9]+)\\..*" "\\1" VERSION_MAJOR "${GitTagVersion}")
-string(REGEX REPLACE "^[0-9]+\\.([0-9]+).*" "\\1" VERSION_MINOR "${GitTagVersion}")
-string(REGEX REPLACE "^[0-9]+\\.[0-9]+\\.([0-9]+).*" "\\1" VERSION_PATCH "${GitTagVersion}")
-set(VERSION_SHORT "${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}")
+
+# By default, the version information is extracted from the git index. However,
+# we can override this behavior by explicitly setting ADS_VERSION and
+# skipping the git checks. This is useful for cases where this project is being
+# used independently of its original git repo (e.g. vendored in another project)
+if(NOT ADS_VERSION)
+    set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules ${CMAKE_MODULE_PATH})
+    include(GetGitRevisionDescription)
+    git_describe(GitTagVersion --tags)
+    string(REGEX REPLACE "^([0-9]+)\\..*" "\\1" VERSION_MAJOR "${GitTagVersion}")
+    string(REGEX REPLACE "^[0-9]+\\.([0-9]+).*" "\\1" VERSION_MINOR "${GitTagVersion}")
+    string(REGEX REPLACE "^[0-9]+\\.[0-9]+\\.([0-9]+).*" "\\1" VERSION_PATCH "${GitTagVersion}")
+    set(VERSION_SHORT "${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}")
+else()
+    string(REGEX MATCHALL "[\.]" VERSION_DOT_MATCHES ${ADS_VERSION})
+    list(LENGTH VERSION_DOT_MATCHES VERSION_DOT_COUNT)
+    if(VERSION_DOT_COUNT EQUAL 2)
+        set(VERSION_SHORT ${ADS_VERSION})
+    else()
+        message(FATAL_ERROR "ADS_VERSION must be in major.minor.patch format, e.g. 3.8.1. Got ${ADS_VERSION}")
+    endif()
+endif()
+
+
 project(QtADS LANGUAGES CXX VERSION ${VERSION_SHORT})
+
 option(BUILD_STATIC "Build the static library" OFF)
 option(BUILD_EXAMPLES "Build the examples" ON)
+
 if("${CMAKE_SIZEOF_VOID_P}" STREQUAL "4")
     set(ads_PlatformDir "x86")
 else()
     set(ads_PlatformDir "x64")
 endif()
+
 add_subdirectory(src)
+
 if(BUILD_EXAMPLES)
     add_subdirectory(examples)
     add_subdirectory(demo)

PyQtAds/QtAds/__init__.py

@@ -1,10 +0,0 @@
-from .ads import ads
-from .._version import *
-
-import inspect
-
-for name, member in inspect.getmembers(ads):
-    if not name.startswith('_'):
-        globals()[name] = member
-        
-del ads

PyQtAds/__init__.py

@@ -1,9 +0,0 @@
-from .rc import *
-from ._version import get_versions
-__version__ = get_versions()['version']
-short_version = __version__
-version = __version__
-full_version = __version__
-git_revision = get_versions()['full-revisionid']
-release = not get_versions()['dirty']
-del get_versions

PyQtAds/_version.py

@@ -1,520 +0,0 @@
-
-# This file helps to compute a version number in source trees obtained from
-# git-archive tarball (such as those provided by githubs download-from-tag
-# feature). Distribution tarballs (built by setup.py sdist) and build
-# directories (produced by setup.py build) will contain a much shorter file
-# that just contains the computed version number.
-
-# This file is released into the public domain. Generated by
-# versioneer-0.18 (https://github.com/warner/python-versioneer)
-
-"""Git implementation of _version.py."""
-
-import errno
-import os
-import re
-import subprocess
-import sys
-
-
-def get_keywords():
-    """Get the keywords needed to look up the version information."""
-    # these strings will be replaced by git during git-archive.
-    # setup.py/versioneer.py will grep for the variable names, so they must
-    # each be defined on a line of their own. _version.py will just call
-    # get_keywords().
-    git_refnames = "$Format:%d$"
-    git_full = "$Format:%H$"
-    git_date = "$Format:%ci$"
-    keywords = {"refnames": git_refnames, "full": git_full, "date": git_date}
-    return keywords
-
-
-class VersioneerConfig:
-    """Container for Versioneer configuration parameters."""
-
-
-def get_config():
-    """Create, populate and return the VersioneerConfig() object."""
-    # these strings are filled in when 'setup.py versioneer' creates
-    # _version.py
-    cfg = VersioneerConfig()
-    cfg.VCS = "git"
-    cfg.style = "pep440"
-    cfg.tag_prefix = ""
-    cfg.parentdir_prefix = "None"
-    cfg.versionfile_source = "PyQtAds/_version.py"
-    cfg.verbose = False
-    return cfg
-
-
-class NotThisMethod(Exception):
-    """Exception raised if a method is not valid for the current scenario."""
-
-
-LONG_VERSION_PY = {}
-HANDLERS = {}
-
-
-def register_vcs_handler(vcs, method):  # decorator
-    """Create decorator to mark a method as the handler of a VCS."""
-    def decorate(f):
-        """Store f in HANDLERS[vcs][method]."""
-        if vcs not in HANDLERS:
-            HANDLERS[vcs] = {}
-        HANDLERS[vcs][method] = f
-        return f
-    return decorate
-
-
-def run_command(commands, args, cwd=None, verbose=False, hide_stderr=False,
-                env=None):
-    """Call the given command(s)."""
-    assert isinstance(commands, list)
-    p = None
-    for c in commands:
-        try:
-            dispcmd = str([c] + args)
-            # remember shell=False, so use git.cmd on windows, not just git
-            p = subprocess.Popen([c] + args, cwd=cwd, env=env,
-                                 stdout=subprocess.PIPE,
-                                 stderr=(subprocess.PIPE if hide_stderr
-                                         else None))
-            break
-        except EnvironmentError:
-            e = sys.exc_info()[1]
-            if e.errno == errno.ENOENT:
-                continue
-            if verbose:
-                print("unable to run %s" % dispcmd)
-                print(e)
-            return None, None
-    else:
-        if verbose:
-            print("unable to find command, tried %s" % (commands,))
-        return None, None
-    stdout = p.communicate()[0].strip()
-    if sys.version_info[0] >= 3:
-        stdout = stdout.decode()
-    if p.returncode != 0:
-        if verbose:
-            print("unable to run %s (error)" % dispcmd)
-            print("stdout was %s" % stdout)
-        return None, p.returncode
-    return stdout, p.returncode
-
-
-def versions_from_parentdir(parentdir_prefix, root, verbose):
-    """Try to determine the version from the parent directory name.
-
-    Source tarballs conventionally unpack into a directory that includes both
-    the project name and a version string. We will also support searching up
-    two directory levels for an appropriately named parent directory
-    """
-    rootdirs = []
-
-    for i in range(3):
-        dirname = os.path.basename(root)
-        if dirname.startswith(parentdir_prefix):
-            return {"version": dirname[len(parentdir_prefix):],
-                    "full-revisionid": None,
-                    "dirty": False, "error": None, "date": None}
-        else:
-            rootdirs.append(root)
-            root = os.path.dirname(root)  # up a level
-
-    if verbose:
-        print("Tried directories %s but none started with prefix %s" %
-              (str(rootdirs), parentdir_prefix))
-    raise NotThisMethod("rootdir doesn't start with parentdir_prefix")
-
-
-@register_vcs_handler("git", "get_keywords")
-def git_get_keywords(versionfile_abs):
-    """Extract version information from the given file."""
-    # the code embedded in _version.py can just fetch the value of these
-    # keywords. When used from setup.py, we don't want to import _version.py,
-    # so we do it with a regexp instead. This function is not used from
-    # _version.py.
-    keywords = {}
-    try:
-        f = open(versionfile_abs, "r")
-        for line in f.readlines():
-            if line.strip().startswith("git_refnames ="):
-                mo = re.search(r'=\s*"(.*)"', line)
-                if mo:
-                    keywords["refnames"] = mo.group(1)
-            if line.strip().startswith("git_full ="):
-                mo = re.search(r'=\s*"(.*)"', line)
-                if mo:
-                    keywords["full"] = mo.group(1)
-            if line.strip().startswith("git_date ="):
-                mo = re.search(r'=\s*"(.*)"', line)
-                if mo:
-                    keywords["date"] = mo.group(1)
-        f.close()
-    except EnvironmentError:
-        pass
-    return keywords
-
-
-@register_vcs_handler("git", "keywords")
-def git_versions_from_keywords(keywords, tag_prefix, verbose):
-    """Get version information from git keywords."""
-    if not keywords:
-        raise NotThisMethod("no keywords at all, weird")
-    date = keywords.get("date")
-    if date is not None:
-        # git-2.2.0 added "%cI", which expands to an ISO-8601 -compliant
-        # datestamp. However we prefer "%ci" (which expands to an "ISO-8601
-        # -like" string, which we must then edit to make compliant), because
-        # it's been around since git-1.5.3, and it's too difficult to
-        # discover which version we're using, or to work around using an
-        # older one.
-        date = date.strip().replace(" ", "T", 1).replace(" ", "", 1)
-    refnames = keywords["refnames"].strip()
-    if refnames.startswith("$Format"):
-        if verbose:
-            print("keywords are unexpanded, not using")
-        raise NotThisMethod("unexpanded keywords, not a git-archive tarball")
-    refs = set([r.strip() for r in refnames.strip("()").split(",")])
-    # starting in git-1.8.3, tags are listed as "tag: foo-1.0" instead of
-    # just "foo-1.0". If we see a "tag: " prefix, prefer those.
-    TAG = "tag: "
-    tags = set([r[len(TAG):] for r in refs if r.startswith(TAG)])
-    if not tags:
-        # Either we're using git < 1.8.3, or there really are no tags. We use
-        # a heuristic: assume all version tags have a digit. The old git %d
-        # expansion behaves like git log --decorate=short and strips out the
-        # refs/heads/ and refs/tags/ prefixes that would let us distinguish
-        # between branches and tags. By ignoring refnames without digits, we
-        # filter out many common branch names like "release" and
-        # "stabilization", as well as "HEAD" and "master".
-        tags = set([r for r in refs if re.search(r'\d', r)])
-        if verbose:
-            print("discarding '%s', no digits" % ",".join(refs - tags))
-    if verbose:
-        print("likely tags: %s" % ",".join(sorted(tags)))
-    for ref in sorted(tags):
-        # sorting will prefer e.g. "2.0" over "2.0rc1"
-        if ref.startswith(tag_prefix):
-            r = ref[len(tag_prefix):]
-            if verbose:
-                print("picking %s" % r)
-            return {"version": r,
-                    "full-revisionid": keywords["full"].strip(),
-                    "dirty": False, "error": None,
-                    "date": date}
-    # no suitable tags, so version is "0+unknown", but full hex is still there
-    if verbose:
-        print("no suitable tags, using unknown + full revision id")
-    return {"version": "0+unknown",
-            "full-revisionid": keywords["full"].strip(),
-            "dirty": False, "error": "no suitable tags", "date": None}
-
-
-@register_vcs_handler("git", "pieces_from_vcs")
-def git_pieces_from_vcs(tag_prefix, root, verbose, run_command=run_command):
-    """Get version from 'git describe' in the root of the source tree.
-
-    This only gets called if the git-archive 'subst' keywords were *not*
-    expanded, and _version.py hasn't already been rewritten with a short
-    version string, meaning we're inside a checked out source tree.
-    """
-    GITS = ["git"]
-    if sys.platform == "win32":
-        GITS = ["git.cmd", "git.exe"]
-
-    out, rc = run_command(GITS, ["rev-parse", "--git-dir"], cwd=root,
-                          hide_stderr=True)
-    if rc != 0:
-        if verbose:
-            print("Directory %s not under git control" % root)
-        raise NotThisMethod("'git rev-parse --git-dir' returned error")
-
-    # if there is a tag matching tag_prefix, this yields TAG-NUM-gHEX[-dirty]
-    # if there isn't one, this yields HEX[-dirty] (no NUM)
-    describe_out, rc = run_command(GITS, ["describe", "--tags", "--dirty",
-                                          "--always", "--long",
-                                          "--match", "%s*" % tag_prefix],
-                                   cwd=root)
-    # --long was added in git-1.5.5
-    if describe_out is None:
-        raise NotThisMethod("'git describe' failed")
-    describe_out = describe_out.strip()
-    full_out, rc = run_command(GITS, ["rev-parse", "HEAD"], cwd=root)
-    if full_out is None:
-        raise NotThisMethod("'git rev-parse' failed")
-    full_out = full_out.strip()
-
-    pieces = {}
-    pieces["long"] = full_out
-    pieces["short"] = full_out[:7]  # maybe improved later
-    pieces["error"] = None
-
-    # parse describe_out. It will be like TAG-NUM-gHEX[-dirty] or HEX[-dirty]
-    # TAG might have hyphens.
-    git_describe = describe_out
-
-    # look for -dirty suffix
-    dirty = git_describe.endswith("-dirty")
-    pieces["dirty"] = dirty
-    if dirty:
-        git_describe = git_describe[:git_describe.rindex("-dirty")]
-
-    # now we have TAG-NUM-gHEX or HEX
-
-    if "-" in git_describe:
-        # TAG-NUM-gHEX
-        mo = re.search(r'^(.+)-(\d+)-g([0-9a-f]+)$', git_describe)
-        if not mo:
-            # unparseable. Maybe git-describe is misbehaving?
-            pieces["error"] = ("unable to parse git-describe output: '%s'"
-                               % describe_out)
-            return pieces
-
-        # tag
-        full_tag = mo.group(1)
-        if not full_tag.startswith(tag_prefix):
-            if verbose:
-                fmt = "tag '%s' doesn't start with prefix '%s'"
-                print(fmt % (full_tag, tag_prefix))
-            pieces["error"] = ("tag '%s' doesn't start with prefix '%s'"
-                               % (full_tag, tag_prefix))
-            return pieces
-        pieces["closest-tag"] = full_tag[len(tag_prefix):]
-
-        # distance: number of commits since tag
-        pieces["distance"] = int(mo.group(2))
-
-        # commit: short hex revision ID
-        pieces["short"] = mo.group(3)
-
-    else:
-        # HEX: no tags
-        pieces["closest-tag"] = None
-        count_out, rc = run_command(GITS, ["rev-list", "HEAD", "--count"],
-                                    cwd=root)
-        pieces["distance"] = int(count_out)  # total number of commits
-
-    # commit date: see ISO-8601 comment in git_versions_from_keywords()
-    date = run_command(GITS, ["show", "-s", "--format=%ci", "HEAD"],
-                       cwd=root)[0].strip()
-    pieces["date"] = date.strip().replace(" ", "T", 1).replace(" ", "", 1)
-
-    return pieces
-
-
-def plus_or_dot(pieces):
-    """Return a + if we don't already have one, else return a ."""
-    if "+" in pieces.get("closest-tag", ""):
-        return "."
-    return "+"
-
-
-def render_pep440(pieces):
-    """Build up version string, with post-release "local version identifier".
-
-    Our goal: TAG[+DISTANCE.gHEX[.dirty]] . Note that if you
-    get a tagged build and then dirty it, you'll get TAG+0.gHEX.dirty
-
-    Exceptions:
-    1: no tags. git_describe was just HEX. 0+untagged.DISTANCE.gHEX[.dirty]
-    """
-    if pieces["closest-tag"]:
-        rendered = pieces["closest-tag"]
-        if pieces["distance"] or pieces["dirty"]:
-            rendered += plus_or_dot(pieces)
-            rendered += "%d.g%s" % (pieces["distance"], pieces["short"])
-            if pieces["dirty"]:
-                rendered += ".dirty"
-    else:
-        # exception #1
-        rendered = "0+untagged.%d.g%s" % (pieces["distance"],
-                                          pieces["short"])
-        if pieces["dirty"]:
-            rendered += ".dirty"
-    return rendered
-
-
-def render_pep440_pre(pieces):
-    """TAG[.post.devDISTANCE] -- No -dirty.
-
-    Exceptions:
-    1: no tags. 0.post.devDISTANCE
-    """
-    if pieces["closest-tag"]:
-        rendered = pieces["closest-tag"]
-        if pieces["distance"]:
-            rendered += ".post.dev%d" % pieces["distance"]
-    else:
-        # exception #1
-        rendered = "0.post.dev%d" % pieces["distance"]
-    return rendered
-
-
-def render_pep440_post(pieces):
-    """TAG[.postDISTANCE[.dev0]+gHEX] .
-
-    The ".dev0" means dirty. Note that .dev0 sorts backwards
-    (a dirty tree will appear "older" than the corresponding clean one),
-    but you shouldn't be releasing software with -dirty anyways.
-
-    Exceptions:
-    1: no tags. 0.postDISTANCE[.dev0]
-    """
-    if pieces["closest-tag"]:
-        rendered = pieces["closest-tag"]
-        if pieces["distance"] or pieces["dirty"]:
-            rendered += ".post%d" % pieces["distance"]
-            if pieces["dirty"]:
-                rendered += ".dev0"
-            rendered += plus_or_dot(pieces)
-            rendered += "g%s" % pieces["short"]
-    else:
-        # exception #1
-        rendered = "0.post%d" % pieces["distance"]
-        if pieces["dirty"]:
-            rendered += ".dev0"
-        rendered += "+g%s" % pieces["short"]
-    return rendered
-
-
-def render_pep440_old(pieces):
-    """TAG[.postDISTANCE[.dev0]] .
-
-    The ".dev0" means dirty.
-
-    Exceptions:
-    1: no tags. 0.postDISTANCE[.dev0]
-    """
-    if pieces["closest-tag"]:
-        rendered = pieces["closest-tag"]
-        if pieces["distance"] or pieces["dirty"]:
-            rendered += ".post%d" % pieces["distance"]
-            if pieces["dirty"]:
-                rendered += ".dev0"
-    else:
-        # exception #1
-        rendered = "0.post%d" % pieces["distance"]
-        if pieces["dirty"]:
-            rendered += ".dev0"
-    return rendered
-
-
-def render_git_describe(pieces):
-    """TAG[-DISTANCE-gHEX][-dirty].
-
-    Like 'git describe --tags --dirty --always'.
-
-    Exceptions:
-    1: no tags. HEX[-dirty]  (note: no 'g' prefix)
-    """
-    if pieces["closest-tag"]:
-        rendered = pieces["closest-tag"]
-        if pieces["distance"]:
-            rendered += "-%d-g%s" % (pieces["distance"], pieces["short"])
-    else:
-        # exception #1
-        rendered = pieces["short"]
-    if pieces["dirty"]:
-        rendered += "-dirty"
-    return rendered
-
-
-def render_git_describe_long(pieces):
-    """TAG-DISTANCE-gHEX[-dirty].
-
-    Like 'git describe --tags --dirty --always -long'.
-    The distance/hash is unconditional.
-
-    Exceptions:
-    1: no tags. HEX[-dirty]  (note: no 'g' prefix)
-    """
-    if pieces["closest-tag"]:
-        rendered = pieces["closest-tag"]
-        rendered += "-%d-g%s" % (pieces["distance"], pieces["short"])
-    else:
-        # exception #1
-        rendered = pieces["short"]
-    if pieces["dirty"]:
-        rendered += "-dirty"
-    return rendered
-
-
-def render(pieces, style):
-    """Render the given version pieces into the requested style."""
-    if pieces["error"]:
-        return {"version": "unknown",
-                "full-revisionid": pieces.get("long"),
-                "dirty": None,
-                "error": pieces["error"],
-                "date": None}
-
-    if not style or style == "default":
-        style = "pep440"  # the default
-
-    if style == "pep440":
-        rendered = render_pep440(pieces)
-    elif style == "pep440-pre":
-        rendered = render_pep440_pre(pieces)
-    elif style == "pep440-post":
-        rendered = render_pep440_post(pieces)
-    elif style == "pep440-old":
-        rendered = render_pep440_old(pieces)
-    elif style == "git-describe":
-        rendered = render_git_describe(pieces)
-    elif style == "git-describe-long":
-        rendered = render_git_describe_long(pieces)
-    else:
-        raise ValueError("unknown style '%s'" % style)
-
-    return {"version": rendered, "full-revisionid": pieces["long"],
-            "dirty": pieces["dirty"], "error": None,
-            "date": pieces.get("date")}
-
-
-def get_versions():
-    """Get version information or return default if unable to do so."""
-    # I am in _version.py, which lives at ROOT/VERSIONFILE_SOURCE. If we have
-    # __file__, we can work backwards from there to the root. Some
-    # py2exe/bbfreeze/non-CPython implementations don't do __file__, in which
-    # case we can only use expanded keywords.
-
-    cfg = get_config()
-    verbose = cfg.verbose
-
-    try:
-        return git_versions_from_keywords(get_keywords(), cfg.tag_prefix,
-                                          verbose)
-    except NotThisMethod:
-        pass
-
-    try:
-        root = os.path.realpath(__file__)
-        # versionfile_source is the relative path from the top of the source
-        # tree (where the .git directory might live) to this file. Invert
-        # this to find the root from __file__.
-        for i in cfg.versionfile_source.split('/'):
-            root = os.path.dirname(root)
-    except NameError:
-        return {"version": "0+unknown", "full-revisionid": None,
-                "dirty": None,
-                "error": "unable to find root of source tree",
-                "date": None}
-
-    try:
-        pieces = git_pieces_from_vcs(cfg.tag_prefix, root, verbose)
-        return render(pieces, cfg.style)
-    except NotThisMethod:
-        pass
-
-    try:
-        if cfg.parentdir_prefix:
-            return versions_from_parentdir(cfg.parentdir_prefix, root, verbose)
-    except NotThisMethod:
-        pass
-
-    return {"version": "0+unknown", "full-revisionid": None,
-            "dirty": None,
-            "error": "unable to compute version", "date": None}

README.md

@@ -1,27 +1,49 @@
-# Advanced Docking System for Qt
+![ukraine](doc/ukraine.jpg)
 
+![logo](doc/ads_logo.svg)
+
+------------------
+
+[![GitHub release (latest by date)](https://img.shields.io/github/v/release/githubuser0xFFFF/Qt-Advanced-Docking-System?color=%23ff9833)](https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System/releases/latest)
 [![Build status](https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System/workflows/linux-builds/badge.svg)](https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System/actions?query=workflow%3Alinux-builds)
 [![Build status](https://ci.appveyor.com/api/projects/status/qcfb3cy932jw9mpy/branch/master?svg=true)](https://ci.appveyor.com/project/githubuser0xFFFF/qt-advanced-docking-system/branch/master)
 [![License: LGPL v2.1](https://img.shields.io/badge/License-LGPL%20v2.1-blue.svg)](gnu-lgpl-v2.1.md)
-
-[What's new](https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System/releases/latest) •
-[Documentation](doc/user-guide.md)
+[![GitHub contributors](https://img.shields.io/github/contributors/githubuser0xFFFF/Qt-Advanced-Docking-System?color=ffdf00)](https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System/graphs/contributors)
 
 Qt Advanced Docking System lets you create customizable layouts using a full
 featured window docking system similar to what is found in many popular
 integrated development environments (IDEs) such as Visual Studio.
 
+- [What's new...](https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System/releases/latest)
+- [Documentation](doc/user-guide.md)
+- Original Repository: https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System
+
 [![Video Advanced Docking](doc/advanced-docking_video.png)](https://www.youtube.com/watch?v=7pdNfafg3Qc)
 
 ## New and Noteworthy
 
-The [release 3.7](https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System/releases/tag/3.7.0)
+The [release 4.0](https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System/releases/latest)
+adds the following features:
+
+- Auto-Hide functionality ([read more...](#auto-hide-functionality))
+- improved demo application with new image viewer dock widgets
+- Visual Studio like CSS theme in demo application
+
+The [release 3.8](https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System/releases/3.8.3)
+adds the following features:
+
+- option to close tabs with the middle mouse button
+- `DeleteContentOnClose` flag for dynamic deletion and creation of dock widget
+  content
+- improved focus highlighting functionality
+
+The [release 3.7](https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System/releases/tag/3.7.2)
 adds the following features:
 
 - support for **Qt6.**
 - support for [empty dock area](doc/user-guide.md#empty-dock-area)
 
-The [release 3.6](https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System/releases/tag/3.6.0)
+The [release 3.6](https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System/releases/tag/3.6.3)
 adds some nice new features:
 
 - support for [central widget](doc/user-guide.md#central-widget) concept
@@ -60,7 +82,10 @@ know it from Visual Studio.
   - [Tab-menu for easy handling of many tabbed dock widgets](#tab-menu-for-easy-handling-of-many-tabbed-dock-widgets)
   - [Many different ways to detach dock widgets](#many-different-ways-to-detach-dock-widgets)
   - [Supports deletion of dynamically created dock widgets](#supports-deletion-of-dynamically-created-dock-widgets)
-  - [Python PyQt5 Bindings](#python-pyqt5-bindings)
+  - [Auto-Hide Functionality](#auto-hide-functionality)
+- [Python Bindings](#python-bindings)
+  - [PySide6](#pyside6)
+  - [PyQt5](#pyqt5)
 - [Tested Compatible Environments](#tested-compatible-environments)
   - [Supported Qt Versions](#supported-qt-versions)
   - [Windows](#windows)
@@ -68,20 +93,24 @@ know it from Visual Studio.
   - [Linux](#linux)
 - [Build](#build)
 - [Getting started / Example](#getting-started--example)
-- [Developers](#developers)
 - [License information](#license-information)
-- [Alternative Docking System Implementations](#alternative-docking-system-implementations)
-  - [KDDockWidgets](#kddockwidgets)
-  - [QtitanDocking](#qtitandocking)
 - [Donation](#donation)
 - [Showcase](#showcase)
   - [Qt Creator IDE](#qt-creator-ide)
   - [Qt Design Studio](#qt-design-studio)
-  - [QmixElements](#qmixelements)
+  - [CETONI Elements](#cetoni-elements)
   - [ezEditor](#ezeditor)
   - [D-Tect X](#d-tect-x)
   - [HiveWE](#hivewe)
   - [Ramses Composer](#ramses-composer)
+  - [Plot Juggler](#plot-juggler)
+  - [Notepad Next](#notepad-next)
+  - [MetGem](#metgem)
+  - [PRE Workbench](#pre-workbench)
+- [Alternative Docking System Implementations](#alternative-docking-system-implementations)
+  - [KDDockWidgets](#kddockwidgets)
+  - [QtitanDocking](#qtitandocking)
+  - [DockingPanes](#dockingpanes)
 
 ### Docking everywhere - no central widget
 
@@ -136,7 +165,7 @@ If this flag is cleared, the widget resizing is deferred until the mouse button
 
 ### Opaque and non-opaque undocking
 
-By default, opaque undocking is active. That means, as soon as you drag a dock widget or a dock area with a number of dock widgets it will be undocked and moved into a floating widget and then the floating widget will be dragged around. That means undocking will take place immediatelly. You can compare this with opaque splitter resizing. If the flag `OpaqueUndocking` is cleared, then non-opaque undocking is active. In this mode, undocking is more like a standard drag and drop operation. That means, the dragged dock widget or dock area is not undocked immediatelly. Instead, a drag preview widget is created and dragged around to indicate the future position of the dock widget or dock area. The actual dock operation is only executed when the mouse button is released. That makes it possible, to cancel an active drag operation with the escape key.
+By default, opaque undocking is active. That means, as soon as you drag a dock widget or a dock area with a number of dock widgets it will be undocked and moved into a floating widget and then the floating widget will be dragged around. That means undocking will take place immediately. You can compare this with opaque splitter resizing. If the flag `OpaqueUndocking` is cleared, then non-opaque undocking is active. In this mode, undocking is more like a standard drag and drop operation. That means, the dragged dock widget or dock area is not undocked immediately. Instead, a drag preview widget is created and dragged around to indicate the future position of the dock widget or dock area. The actual dock operation is only executed when the mouse button is released. That makes it possible, to cancel an active drag operation with the escape key.
 
 The drag preview widget can be configured by a number of global dock manager flags:
 - `DragPreviewIsDynamic`: if this flag is enabled, the preview will be adjusted dynamically to the drop area
@@ -163,19 +192,74 @@ You can detach dock widgets and also dock areas in the following ways:
 
 Normally clicking the close button of a dock widget will just hide the widget and the user can show it again using the toggleView() action of the dock widget. This is meant for user interfaces with a static amount of widgets. But the advanced docking system also supports dynamic dock widgets that will get deleted on close. If you set the dock widget flag `DockWidgetDeleteOnClose` for a certain dock widget, then it will be deleted as soon as you close this dock widget. This enables the implementation of user interfaces with dynamically created editors, like in word processing applications or source code development tools.
 
-### Python PyQt5 Bindings
+### Auto-Hide Functionality
+
+The 4.0 release of ADS added the new **Auto-Hide** feature. Thanks to the
+[initial contribution](https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System/pull/452) by [Ahmad Syarifuddin](https://github.com/SyarifFakhri) it was
+possible to close this long standing [feature request](https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System/issues/147). The "Auto Hide" feature
+allows to display more information using less screen space by hiding or showing
+windows pinned to one of the four dock container borders.
+
+![Auto-Hide Movie](doc/AutoHide_Movie.gif)
+
+The Advanced Docking
+System supports "Auto-Hide" functionality for **all** dock containers - that means,
+for the main window and for each floating widget. Here is short list of all
+auto hide features:
+
+- supported for the main window and all floating dock containers
+- supports showing and hiding via mouse click or mouse hover
+- respects opaque / non opaque splitter resizing flag
+- context menu for pinning a dock widget or a complete dock area to a certain border
+- configuration option to configure if the pin button should pin the current
+  dock widget tab or a complete dock area
+- click the pin button holding the Ctrl key to pin a complete dock area
+- fully CSS styleable
+- backward compatible state file format - is is possible to load older dock manager
+  state files without auto hide support and older versions can load the new state
+  files with Auto-Hide state information
+
+More about the auto hide configuration options in the [online documentation...](doc/user-guide.md#auto-hide-configuration-flags)
+
+## Python Bindings
 
 ![Python Logo](doc/python_logo.png)
 
-The Advanced Docking System comes with a complete Python integration based on
-PyQt5 bindings. The package is available via [conda-forge](https://github.com/conda-forge/pyqtads-feedstock). The python integration has been contributed to this project
-by the following people:
+Thanks to the contribution of several users, the Advanced Docking System comes
+with a complete Python integration. Python bindings are available for **PyQt5** and
+**PySide6**.
+
+### PySide6
+
+A PySide6 ADS package is available via PyPi and can be installed on Windows,
+macOS, and Linux with:
+
+```bash
+pip install PySide6-QtAds
+```
+
+Sample code is available [here](https://github.com/mborgerson/Qt-Advanced-Docking-System/tree/pyside6/examples). To run the samples, you'll also need to install latest qtpy
+from source (pip install https://github.com/spyder-ide/qtpy/archive/refs/heads/master.zip).
+The PySide6 bindings were contributed by:
+
+- [mborgerson](https://github.com/mborgerson)
+
+For more information about the PySide6 bindings read [this](https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System/issues/298) issue.
+
+### PyQt5
+
+A package is available via [conda-forge](https://github.com/conda-forge/pyqtads-feedstock).
+The python integration has been contributed to this project by the following people:
 
 - [n-elie](https://github.com/n-elie)
 - [Hugo Slepicka](https://github.com/hhslepicka)
 - [K Lauer](https://github.com/klauer)
 
-Latest working version: [3.5.2](https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System/releases/tag/3.5.2)
+A Python integration is also available via PyPi. You can install the
+[PyQtAds](https://pypi.org/project/PyQtAds/) package via pip. This feature has been
+contributed to this project by:
+
+- [Mira Weller](https://github.com/luelista)
 
 ## Tested Compatible Environments
 
@@ -273,8 +357,9 @@ MainWindow::MainWindow(QWidget *parent) :
 {
     ui->setupUi(this);
 
-    // Create the dock manager. Because the parent parameter is a QMainWindow
-    // the dock manager registers itself as the central widget.
+    // Create the dock manager after the ui is setup. Because the
+    // parent parameter is a QMainWindow the dock manager registers
+    // itself as the central widget as such the ui must be set up first.
     m_DockManager = new ads::CDockManager(this);
 
     // Create example content label - this can be any application specific
@@ -303,41 +388,11 @@ MainWindow::~MainWindow()
 }
 ```
 
-## Developers
-
-- Uwe Kindler, Project Maintainer
-- Manuel Freiholz
-
-This work is based on and inspired by the 
-[Advanced Docking System for Qt](https://github.com/mfreiholz/Qt-Advanced-Docking-System)
-from Manuel Freiholz. I did an almost complete rewrite of his code to improve
-code quality, readibility and to fix all issues from the issue tracker
-of his docking system project.
-
 ## License information
 
 [![License: LGPL v2.1](https://img.shields.io/badge/License-LGPL%20v2.1-blue.svg)](gnu-lgpl-v2.1.md)
 This project uses the [LGPLv2.1 license](gnu-lgpl-v2.1.md)
 
-
-## Alternative Docking System Implementations
-
-If this Qt Advanced Docking System does not fit to your needs you may consider some of the alternative docking system solutions for Qt.
-
-### KDDockWidgets
-
-This is an advanced docking framework for Qt from [KDAB](https://www.kdab.com/). The interesting thing is, that they separated GUI code from logic, so they can easily provide a QtQuick backend in the future.
-
-- [Blog post about KDDockWidgets](https://www.kdab.com/kddockwidgets/)
-- [GitHub project](https://github.com/KDAB/KDDockWidgets)
-
-
-### QtitanDocking
-
-This is a commercial component from [Developer Machines](https://www.devmachines.com/) for Qt Framework that allows to create a Microsoft like dockable user interface. They also offer a lot of other interesting and useful components for Qt.
-
-- [Product page](https://www.devmachines.com/qtitandocking-overview.html)
-
 ## Donation
 
 If this project help you reduce time to develop or if you just like it, you can give me a cup of coffee :coffee::wink:.
@@ -363,13 +418,14 @@ Taken from the [Qt Blog](https://www.qt.io/blog/qt-design-studio-1.5-beta-releas
 
 [![Qt Design Studio](doc/showcase_qt_design_studio_video.png)](https://youtu.be/za9KBWcFXEw?t=84)
 
-### [QmixElements](https://www.cetoni.com/products/qmixelements/)
+### [CETONI Elements](https://cetoni.com/cetoni-elements/)
 
-The QmixElements software from [CETONI](https://www.cetoni.com) is a comprehensive, 
-plugin-based and modular laboratory automation software for controlling CETONI devices using a joint graphical user interface. The software features a powerful script system to automate processes. This [blog post](https://www.cetoni.com/blog/qmixelements-advanced-docking-system/) gives a nice overview about the use of the Qt
-Advanced Docking System in the QmixElements sofware.
+The CETONI Elements software from [CETONI](https://www.cetoni.com) is a comprehensive,
+plugin-based and modular laboratory automation software for controlling CETONI devices using a joint graphical user interface. The software features a powerful script system to automate processes. The software uses the advanced docking system to give the user the freedom to arrange all the views and windows that are provided by the various plugins.
 
-![QmixElements](doc/showcase_qmix_elements.png)
+[learn more...](https://cetoni.com/cetoni-elements/)
+
+[![CETONI_Elements](doc/showcase_qmix_elements.png)](https://www.youtube.com/watch?v=7pdNfafg3Qc)
 
 ### [ezEditor](https://github.com/ezEngine/ezEngine)
 
@@ -385,13 +441,13 @@ D-Tect X is a X-ray inspection software for industrial radiography. It is a stat
 
 [learn more...](https://www.duerr-ndt.com/products/ndt-software/d-tect-xray-inspection-software.html)
 
-![D-TectX](doc/showcase_d-tect-x.jpg)
+[![D-TectX](doc/showcase_d-tect-x.png)](https://youtu.be/mOor7GmmIJo?t=13)
 
 ### [HiveWE](https://github.com/stijnherfst/HiveWE)
 
 HiveWE is a Warcraft III world editor. It focusses on speed and ease of use,
 especially for large maps where the regular World Editor is often too slow and clunky.
-It has a JASS editor with syntax hightlighting, tabs, code completion and more.
+It has a JASS editor with syntax highlighting, tabs, code completion and more.
 The JASS editor uses the Qt Advanced Docking System for the management and layout
 of the open editor windows.
 
@@ -413,3 +469,82 @@ and digital portfolio.
 [learn more...](https://github.com/GENIVI/ramses-composer)
 
 ![RamsesComposer](doc/showcase_ramses_composer.png)
+
+### [Plot Juggler](https://github.com/facontidavide/PlotJuggler)
+
+PlotJuggler is a fast, powerful and intuitive tool to visualize time series.
+It makes it easy to visualize data but also to analyze it. You can manipulate
+your time series using a simple and extendable Transform Editor. Some of the
+highlights are:
+
+- Simple Drag & Drop user interface.
+- Load data from file.
+- Connect to live streaming of data.
+- Save the visualization layout and configurations to re-use them later.
+- Fast OpenGL visualization.
+- Can handle thousands of timeseries and millions of data points.
+- Transform your data using a simple editor: derivative, moving average, integral, etc…
+- PlotJuggler can be easily extended using plugins.
+
+[read more...](https://github.com/facontidavide/PlotJuggler)
+
+[![Plot Juggler](doc/showcase_plot_juggler.png)](https://vimeo.com/480588113#t=46s)
+
+### [Notepad Next](https://github.com/dail8859/NotepadNext)
+
+Notepad Next is a cross-platform reimplementation of Notepad++ that uses the 
+Advanced Docking System to arrange the open source files on the screen.
+
+[read more...](https://github.com/dail8859/NotepadNext)
+
+![NotepadNext](doc/showcase_notepad_next.png)
+
+### [MetGem](https://metgem.github.io/)
+
+MetGem is an open-source software for tandem mass-spectrometry data visualization.
+It's key features are standalone molecular networking and t-SNE based projections.
+MetGem uses the Qt-Advanced-Docking-System to manage docks and to create independent
+molecular network views.
+
+[read more...](https://metgem.github.io/)
+
+![MetGem](doc/showcase_metgem.png)
+
+### [PRE Workbench](https://luelista.github.io/pre_workbench/)
+
+Protocol Reverse Engineering Workbench is a software to support researchers in reverse engineering protocols and documenting the results. It supports various sources to import protocol traffic from, helps the discovery process by displaying different views and heuristic-based highlighting on data, and aids in documenting and sharing findings.
+
+PRE Workbench is a Python software and uses the ADS PyQt integration.
+
+[read more...](https://luelista.github.io/pre_workbench/)
+
+[![PRE Workbench](doc/showcase_pre_workbench.png)](https://youtu.be/U3op5UreV1Q)
+
+## Alternative Docking System Implementations
+
+If this Qt Advanced Docking System does not fit to your needs you may consider some of the alternative docking system solutions for Qt.
+
+### KDDockWidgets
+
+This is an advanced docking framework for Qt from [KDAB](https://www.kdab.com/). The interesting thing is, that they separated GUI code from logic, so they can easily provide a QtQuick backend in the future. 
+
+- [Blog post about KDDockWidgets](https://www.kdab.com/kddockwidgets/)
+- [GitHub project](https://github.com/KDAB/KDDockWidgets)
+
+**License:** dual-licensed, available under both commercial and GPL license.
+
+### QtitanDocking
+
+This is a commercial component from [Developer Machines](https://www.devmachines.com/) for Qt Framework that allows to create a Microsoft like dockable user interface. They also offer a lot of other interesting and useful components for Qt. The library is available
+
+- [Product page](https://www.devmachines.com/qtitandocking-overview.html)
+
+**License:** Commercial license
+
+### DockingPanes
+
+DockingPanes is a library for Qt Widgets that implements docking windows that have the look and feel of Visual Studio. It provides a simple API which allows an application to make use of docking windows with a few calls.
+
+- [GitHub project](https://github.com/KestrelRadarSensors/dockingpanes)
+
+**License:** GPL

ads.pri

@@ -1,6 +1,6 @@
 
 CONFIG(debug, debug|release){
-    win32 {
+    win32-g++ {
     	versionAtLeast(QT_VERSION, 5.15.0) {
     		LIBS += -lqtadvanceddocking
     	}
@@ -8,6 +8,9 @@ CONFIG(debug, debug|release){
     		LIBS += -lqtadvanceddockingd
     	}
     }
+    else:msvc {
+        LIBS += -lqtadvanceddockingd
+    }
     else:mac {
         LIBS += -lqtadvanceddocking_debug
     }

demo/CMakeLists.txt

@@ -13,6 +13,8 @@ set(ads_demo_SRCS
     mainwindow.ui
     StatusDialog.cpp
     StatusDialog.ui
+    ImageViewer.cpp
+    RenderWidget.cpp
 	demo.qrc
 )
 add_executable(AdvancedDockingSystemDemo WIN32 ${ads_demo_SRCS})

demo/ImageViewer.cpp

@@ -0,0 +1,280 @@
+//============================================================================
+/// \file   ImageViewer.cpp
+/// \author Uwe Kindler
+/// \date   04.11.2022
+/// \brief  Implementation of CImageViewer
+//============================================================================
+
+//============================================================================
+//                                   INCLUDES
+//============================================================================
+#include "ImageViewer.h"
+
+#include <math.h>
+
+#include <QLabel>
+#include <QImageReader>
+#include <QImageWriter>
+#include <QMessageBox>
+#include <QApplication>
+#include <QDir>
+#include <QFileDialog>
+#include <QStandardPaths>
+#include <QAction>
+#include <QScrollBar>
+#include <QPixmap>
+#include <QPainter>
+#include <QImage>
+#include <QMouseEvent>
+#include <QWheelEvent>
+
+#include "RenderWidget.h"
+
+/**
+ * Private image viewer data
+ */
+struct ImageViewerPrivate
+{
+	CImageViewer* _this;
+	CRenderWidget* RenderWidget;///< renders the image to screen
+	bool AutoFit;///< automatically fit image to window size on resize events
+	QSize ImageSize;///< stores the image size to detect image size changes
+	QPoint MouseMoveStartPos;///< for calculation of mouse move vector
+	QLabel* ScalingLabel;///< label displays scaling factor
+	QList<QWidget*> OverlayTools;///< list of tool widget to overlay
+
+	ImageViewerPrivate(CImageViewer* _public) : _this(_public) {}
+};
+
+
+
+//============================================================================
+CImageViewer::CImageViewer(QWidget *parent)
+	: Super(parent),
+	  d(new ImageViewerPrivate(this))
+{
+	d->AutoFit = true;
+	d->RenderWidget = new CRenderWidget(this);
+
+	this->setBackgroundRole(QPalette::Light);
+	this->setAlignment(Qt::AlignCenter);
+	this->setWidget(d->RenderWidget);
+	this->createActions();
+	this->setMouseTracking(false); // only produce mouse move events if mouse button pressed
+}
+
+
+//============================================================================
+CImageViewer::~CImageViewer()
+{
+	delete d;
+}
+
+
+//============================================================================
+bool CImageViewer::loadFile(const QString& fileName)
+{
+    QImageReader reader(fileName);
+    reader.setAutoTransform(true);
+    const QImage newImage = reader.read();
+    if (newImage.isNull())
+    {
+        QMessageBox::information(this, QGuiApplication::applicationDisplayName(),
+                                 tr("Cannot load %1: %2")
+                                 .arg(QDir::toNativeSeparators(fileName), reader.errorString()));
+        return false;
+    }
+
+    setImage(newImage);
+    setWindowFilePath(fileName);
+    return true;
+}
+
+
+//===========================================================================
+void CImageViewer::setImage(const QImage &newImage)
+{
+    d->RenderWidget->showImage(newImage);
+    this->adjustDisplaySize(newImage);
+}
+
+
+//============================================================================
+void CImageViewer::adjustDisplaySize(const QImage& Image)
+{
+	if (d->ImageSize == Image.size())
+	{
+		return;
+	}
+	d->ImageSize = Image.size();
+	if (d->AutoFit)
+	{
+		this->fitToWindow();
+	}
+}
+
+
+//===========================================================================
+static void initializeImageFileDialog(QFileDialog &dialog, QFileDialog::AcceptMode acceptMode)
+{
+    static bool firstDialog = true;
+
+    if (firstDialog) {
+        firstDialog = false;
+        const QStringList picturesLocations = QStandardPaths::standardLocations(QStandardPaths::PicturesLocation);
+        dialog.setDirectory(picturesLocations.isEmpty() ? QDir::currentPath() : picturesLocations.last());
+    }
+
+    QStringList mimeTypeFilters;
+    const QByteArrayList supportedMimeTypes = acceptMode == QFileDialog::AcceptOpen
+        ? QImageReader::supportedMimeTypes() : QImageWriter::supportedMimeTypes();
+    for (const QByteArray &mimeTypeName : supportedMimeTypes)
+        mimeTypeFilters.append(mimeTypeName);
+    mimeTypeFilters.sort();
+    dialog.setMimeTypeFilters(mimeTypeFilters);
+    dialog.selectMimeTypeFilter("image/jpeg");
+    if (acceptMode == QFileDialog::AcceptSave)
+        dialog.setDefaultSuffix("jpg");
+}
+
+
+//===========================================================================
+void CImageViewer::open()
+{
+    QFileDialog dialog(this, tr("Open File"));
+    initializeImageFileDialog(dialog, QFileDialog::AcceptOpen);
+
+    while (dialog.exec() == QDialog::Accepted && !loadFile(dialog.selectedFiles().first())) {}
+}
+
+
+//===========================================================================
+void CImageViewer::createActions()
+{
+	QAction* a;
+    a = new QAction(tr("&Open..."));
+    a->setIcon(QIcon(":/adsdemo/images/perm_media.svg"));
+    connect(a, &QAction::triggered, this, &CImageViewer::open);
+    a->setShortcut(QKeySequence::Open);;
+    this->addAction(a);
+
+	a = new QAction(tr("Fit on Screen"));
+	a->setIcon(QIcon(":/adsdemo/images/zoom_out_map.svg"));
+	connect(a, &QAction::triggered, this, &CImageViewer::fitToWindow);
+	this->addAction(a);
+
+	a = new QAction(tr("Actual Pixels"));
+	a->setIcon(QIcon(":/adsdemo/images/find_in_page.svg"));
+	connect(a, &QAction::triggered, this, &CImageViewer::normalSize);
+	this->addAction(a);
+
+	a = new QAction(this);
+	a->setSeparator(true);
+	this->addAction(a);
+
+	a = new QAction(tr("Zoom In (25%)"));
+	a->setIcon(QIcon(":/adsdemo/images/zoom_in.svg"));
+	connect(a, &QAction::triggered, this, &CImageViewer::zoomIn);
+	this->addAction(a);
+
+	a = new QAction(tr("Zoom Out (25%)"));
+	a->setIcon(QIcon(":/adsdemo/images/zoom_out.svg"));
+	connect(a, &QAction::triggered, this, &CImageViewer::zoomOut);
+	this->addAction(a);
+
+	this->setContextMenuPolicy(Qt::ActionsContextMenu);
+}
+
+
+//===========================================================================
+void CImageViewer::zoomIn()
+{
+	d->AutoFit = false;
+	d->RenderWidget->zoomIn();
+}
+
+
+//===========================================================================
+void CImageViewer::zoomOut()
+{
+	d->AutoFit = false;
+	d->RenderWidget->zoomOut();
+}
+
+
+//===========================================================================
+void CImageViewer::normalSize()
+{
+	d->AutoFit = false;
+	d->RenderWidget->normalSize();
+}
+
+
+//===========================================================================
+void CImageViewer::fitToWindow()
+{
+	d->AutoFit = true;
+	d->RenderWidget->scaleToSize(this->maximumViewportSize());
+}
+
+
+//============================================================================
+void CImageViewer::resizeEvent(QResizeEvent* ResizeEvent)
+{
+	Super::resizeEvent(ResizeEvent);
+	if (d->AutoFit)
+	{
+		this->fitToWindow();
+	}
+}
+
+
+//============================================================================
+void CImageViewer::mousePressEvent(QMouseEvent* Event)
+{
+	d->RenderWidget->setCursor(Qt::ClosedHandCursor);
+	d->MouseMoveStartPos = Event->pos();
+	Super::mousePressEvent(Event);
+}
+
+
+//============================================================================
+void CImageViewer::mouseReleaseEvent(QMouseEvent* Event)
+{
+	d->RenderWidget->setCursor(Qt::OpenHandCursor);
+	Super::mouseReleaseEvent(Event);
+}
+
+
+//============================================================================
+void CImageViewer::mouseMoveEvent(QMouseEvent* Event)
+{
+	QPoint MoveVector = Event->pos() - d->MouseMoveStartPos;
+	d->MouseMoveStartPos = Event->pos();
+	horizontalScrollBar()->setValue(horizontalScrollBar()->value()
+	    - MoveVector.x());
+	verticalScrollBar()->setValue(verticalScrollBar()->value() - MoveVector.y());
+}
+
+
+//============================================================================
+void CImageViewer::wheelEvent(QWheelEvent* Event)
+{
+	double numDegrees = Event->angleDelta().y() / 8;
+	double numSteps = numDegrees / 15;
+	d->AutoFit = false;
+	double Zoom;
+	if (numSteps < 0)
+	{
+		Zoom = pow(0.9, 0 - numSteps);
+	}
+	else
+	{
+		Zoom = pow(1.10, numSteps);
+	}
+	d->RenderWidget->zoomByValue(Zoom);
+}
+
+#include "moc_ImageViewer.cpp"
+//---------------------------------------------------------------------------
+// EOF ImageViewer.cpp

demo/ImageViewer.h

@@ -0,0 +1,88 @@
+#ifndef ImageViewerH
+#define ImageViewerH
+//============================================================================
+/// \file   ImageViewer.h
+/// \author Uwe Kindler
+/// \date   04.11.2022
+/// \brief  Declaration of CImageViewer
+//============================================================================
+
+//============================================================================
+//                                   INCLUDES
+//============================================================================
+#include <QScrollArea>
+
+QT_BEGIN_NAMESPACE
+class QLabel;
+QT_END_NAMESPACE
+
+
+struct ImageViewerPrivate;
+
+/**
+ * Tiny simple image viewer for showing images in demo
+ */
+class CImageViewer : public QScrollArea
+{
+	Q_OBJECT
+public:
+	using Super = QScrollArea;
+
+	explicit CImageViewer(QWidget *parent = nullptr);
+    virtual ~CImageViewer();
+
+	bool loadFile(const QString& Filename);
+	void setImage(const QImage &newImage);
+
+public Q_SLOTS:
+	void open();
+    void zoomIn();
+    void zoomOut();
+    void normalSize();
+    void fitToWindow();
+
+protected:
+	/**
+	 * @brief Reimplemented from QScrollArea to adjust image scaling if m_AutoFit is
+	 * true.
+	 */
+	virtual void resizeEvent(QResizeEvent* ResizeEvent);
+
+	/**
+	 * @brief Handle mouse press events.
+	 */
+	virtual void mousePressEvent(QMouseEvent* Event);
+
+	/**
+	 * @brief Handles mouse release events.
+	 */
+	virtual void mouseReleaseEvent(QMouseEvent* Event);
+
+	/**
+	 * @brief Handle mouse move events.
+	 */
+	virtual void mouseMoveEvent(QMouseEvent* Event);
+
+	/**
+	 * @brief Use mouse wheel to change scaling of the image.
+	 */
+	virtual void wheelEvent(QWheelEvent* Event);
+
+private:
+    /**
+	 * @brief Create the wiget actions.
+	 */
+    void createActions();
+
+	/**
+	 * @brief Adjust size of render widget in case of image size change.
+	 * @param[in] Image The new image that may have a different image size.
+	 */
+	void adjustDisplaySize(const QImage& Image);
+
+    ImageViewerPrivate* d;
+    friend ImageViewerPrivate;
+};
+
+//---------------------------------------------------------------------------
+#endif // ImageViewerH

demo/MainWindow.cpp

@@ -60,17 +60,20 @@
 #include <QToolButton>
 #include <QToolBar>
 #include <QPointer>
+#include <QMap>
+#include <QElapsedTimer>
 
 
+#if QT_VERSION >= QT_VERSION_CHECK(5, 10, 0)
+#include <QRandomGenerator>
+#endif
+
 #ifdef Q_OS_WIN
 #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
 #include <QAxWidget>
 #endif
 #endif
 
-#include <QMap>
-#include <QElapsedTimer>
-
 #include "DockManager.h"
 #include "DockWidget.h"
 #include "DockAreaWidget.h"
@@ -80,6 +83,22 @@
 #include "DockComponentsFactory.h"
 #include "StatusDialog.h"
 #include "DockSplitter.h"
+#include "ImageViewer.h"
+
+
+
+/**
+ * Returns a random number from 0 to highest - 1
+ */
+int randomNumberBounded(int highest)
+{
+#if QT_VERSION >= QT_VERSION_CHECK(5, 10, 0)
+	return QRandomGenerator::global()->bounded(highest);
+#else
+	qsrand(QTime::currentTime().msec());
+	return qrand() % highest;
+#endif
+}
 
 
 /**
@@ -216,9 +235,11 @@ struct MainWindowPrivate
 		QFileSystemModel* m = new QFileSystemModel(w);
 		m->setRootPath(QDir::currentPath());
 		w->setModel(m);
+		w->setRootIndex(m->index(QDir::currentPath()));
 		ads::CDockWidget* DockWidget = new ads::CDockWidget(QString("Filesystem %1")
 			.arg(FileSystemCount++));
 		DockWidget->setWidget(w);
+		DockWidget->setIcon(svgIcon(":/adsdemo/images/folder_open.svg"));
 		ui.menuView->addAction(DockWidget->toggleViewAction());
 		// We disable focus to test focus highlighting if the dock widget content
 		// does not support focus
@@ -279,6 +300,7 @@ struct MainWindowPrivate
 
 		ads::CDockWidget* DockWidget = new ads::CDockWidget(QString("Label %1").arg(LabelCount++));
 		DockWidget->setWidget(l);
+		DockWidget->setIcon(svgIcon(":/adsdemo/images/font_download.svg"));
 		ui.menuView->addAction(DockWidget->toggleViewAction());
 		return DockWidget;
 	}
@@ -316,6 +338,35 @@ struct MainWindowPrivate
 		return DockWidget;
 	}
 
+	/**
+	 * Creates a simply image viewr
+	 */
+	ads::CDockWidget* createImageViewer()
+	{
+		static int ImageViewerCount = 0;
+		auto w = new CImageViewer();
+		auto ImageIndex = randomNumberBounded(4);
+		auto FileName = ":adsdemo/images/ads_logo.svg";
+
+		// Pick a random image from a number of images
+		switch (ImageIndex)
+		{
+		case 0: FileName = ":adsdemo/images/ads_tile_blue.svg"; break;
+		case 1: FileName = ":adsdemo/images/ads_tile_blue_light.svg"; break;
+		case 2: FileName = ":adsdemo/images/ads_tile_green.svg"; break;
+		case 3: FileName = ":adsdemo/images/ads_tile_orange.svg"; break;
+		}
+
+		auto Result = w->loadFile(FileName);
+		qDebug() << "loadFile result: " << Result;
+		ads::CDockWidget* DockWidget = new ads::CDockWidget(QString("Image Viewer %1").arg(ImageViewerCount++));
+		DockWidget->setIcon(svgIcon(":/adsdemo/images/photo.svg"));
+		DockWidget->setWidget(w,ads:: CDockWidget::ForceNoScrollArea);
+		auto ToolBar = DockWidget->createDefaultToolBar();
+		ToolBar->addActions(w->actions());
+		return DockWidget;
+	}
+
 	/**
 	 * Create a table widget
 	 */
@@ -433,6 +484,7 @@ void MainWindowPrivate::createContent()
 		int Width = Splitter->width();
 		Splitter->setSizes({Width * 2/3, Width * 1/3});
 	});
+	DockWidget->setWindowTitle(QString("My " + DockWidget->windowTitle()));
 
 	// Now we add a custom button to the dock area title bar that will create
 	// new editor widgets when clicked
@@ -457,7 +509,20 @@ void MainWindowPrivate::createContent()
 	DockManager->addDockWidget(ads::TopDockWidgetArea, createLongTextLabelDockWidget(), RighDockArea);
 	auto BottomDockArea = DockManager->addDockWidget(ads::BottomDockWidgetArea, createLongTextLabelDockWidget(), RighDockArea);
 	DockManager->addDockWidget(ads::CenterDockWidgetArea, createLongTextLabelDockWidget(), RighDockArea);
-	DockManager->addDockWidget(ads::CenterDockWidgetArea, createLongTextLabelDockWidget(), BottomDockArea);
+	auto LabelDockWidget = createLongTextLabelDockWidget();
+	DockManager->addDockWidget(ads::CenterDockWidgetArea, LabelDockWidget, BottomDockArea);
+
+	// Tests CustomCloseHandling without DeleteOnClose
+	LabelDockWidget->setFeature(ads::CDockWidget::CustomCloseHandling, true);
+	QObject::connect(LabelDockWidget, &ads::CDockWidget::closeRequested, [LabelDockWidget, this]()
+	{
+		int Result = QMessageBox::question(_this, "Custom Close Request",
+			"Do you really want to close this dock widget?");
+		if (QMessageBox::Yes == Result)
+		{
+			LabelDockWidget->closeDockWidget();
+		}
+	});
 
     Action = ui.menuTests->addAction(QString("Set %1 Floating").arg(DockWidget->windowTitle()));
     DockWidget->connect(Action, SIGNAL(triggered()), SLOT(setFloating()));
@@ -466,9 +531,22 @@ void MainWindowPrivate::createContent()
     Action = ui.menuTests->addAction(QString("Raise %1").arg(DockWidget->windowTitle()));
     DockWidget->connect(Action, SIGNAL(triggered()), SLOT(raise()));
 
+    // Test hidden floating dock widget
+    DockWidget = createLongTextLabelDockWidget();
+    DockManager->addDockWidgetFloating(DockWidget);
+    DockWidget->toggleView(false);
+
+    // Test visible floating dock widget
+    DockWidget = createCalendarDockWidget();
+    DockManager->addDockWidgetFloating(DockWidget);
+    DockWidget->setWindowTitle(QString("My " + DockWidget->windowTitle()));
+
 
 #ifdef Q_OS_WIN
 #if (QT_VERSION < QT_VERSION_CHECK(6, 0, 0))
+    // If opaque undocking is active, then undocking of widgets while
+    // active x widget is visible causes jerking while dragging a floating
+    // widget
     if (!ads::CDockManager::testConfigFlag(ads::CDockManager::OpaqueUndocking))
     {
     	DockManager->addDockWidget(ads::CenterDockWidgetArea, createActiveXWidget(), RighDockArea);
@@ -481,6 +559,10 @@ void MainWindowPrivate::createContent()
 		_this->connect(DockWidget, SIGNAL(viewToggled(bool)), SLOT(onViewToggled(bool)));
 		_this->connect(DockWidget, SIGNAL(visibilityChanged(bool)), SLOT(onViewVisibilityChanged(bool)));
 	}
+
+	// Create image viewer
+	DockWidget = createImageViewer();
+	DockManager->addDockWidget(ads::LeftDockWidgetArea, DockWidget);
 }
 
 
@@ -519,12 +601,36 @@ void MainWindowPrivate::createActions()
 	_this->connect(a, SIGNAL(triggered()), SLOT(createEditor()));
 	ui.menuTests->addAction(a);
 
+	a = ui.toolBar->addAction("Create Editor Tab");
+	a->setProperty("Floating", false);
+	a->setToolTip("Creates a editor tab and inserts it as second tab into an area");
+	a->setIcon(svgIcon(":/adsdemo/images/tab.svg"));
+	a->setProperty("Tabbed", true);
+	_this->connect(a, SIGNAL(triggered()), SLOT(createEditor()));
+	ui.menuTests->addAction(a);
+
 	a = ui.toolBar->addAction("Create Floating Table");
 	a->setToolTip("Creates floating dynamic dockable table with millions of entries");
 	a->setIcon(svgIcon(":/adsdemo/images/grid_on.svg"));
 	_this->connect(a, SIGNAL(triggered()), SLOT(createTable()));
 	ui.menuTests->addAction(a);
 
+	a = ui.toolBar->addAction("Create Image Viewer");
+	auto ToolButton = qobject_cast<QToolButton*>(ui.toolBar->widgetForAction(a));
+	ToolButton->setPopupMode(QToolButton::InstantPopup);
+	a->setToolTip("Creates floating, docked or pinned image viewer");
+	a->setIcon(svgIcon(":/adsdemo/images/panorama.svg"));
+	ui.menuTests->addAction(a);
+	auto Menu = new QMenu();
+	ToolButton->setMenu(Menu);
+	a = Menu->addAction("Floating Image Viewer");
+	_this->connect(a, SIGNAL(triggered()), SLOT(createImageViewer()));
+	a = Menu->addAction("Docked Image Viewer");
+	_this->connect(a, SIGNAL(triggered()), SLOT(createImageViewer()));
+	a = Menu->addAction("Pinned Image Viewer");
+	_this->connect(a, SIGNAL(triggered()), SLOT(createImageViewer()));
+
+
 	ui.menuTests->addSeparator();
 	a = ui.menuTests->addAction("Show Status Dialog");
 	_this->connect(a, SIGNAL(triggered()), SLOT(showStatusDialog()));
@@ -532,6 +638,12 @@ void MainWindowPrivate::createActions()
 	a = ui.menuTests->addAction("Toggle Label 0 Window Title");
 	_this->connect(a, SIGNAL(triggered()), SLOT(toggleDockWidgetWindowTitle()));
 	ui.menuTests->addSeparator();
+
+	a = ui.toolBar->addAction("Apply VS Style");
+	a->setToolTip("Applies a Visual Studio light style (visual_studio_light.css)." );
+	a->setIcon(svgIcon(":/adsdemo/images/color_lens.svg"));
+	QObject::connect(a, &QAction::triggered, _this, &CMainWindow::applyVsStyle);
+	ui.menuTests->addAction(a);
 }
 
 
@@ -591,7 +703,7 @@ CMainWindow::CMainWindow(QWidget *parent) :
 
     // uncomment the following line if you want to use opaque undocking and
 	// opaque splitter resizing
-    // CDockManager::setConfigFlags(CDockManager::DefaultOpaqueConfig);
+    //CDockManager::setConfigFlags(CDockManager::DefaultOpaqueConfig);
 
     // uncomment the following line if you want a fixed tab width that does
 	// not change if the visibility of the close button changes
@@ -621,11 +733,14 @@ CMainWindow::CMainWindow(QWidget *parent) :
 	// uncomment the following line if you want a central widget in the main dock container (the dock manager) without a titlebar
 	// If you enable this code, you can test it in the demo with the Calendar 0
 	// dock widget.
-	// CDockManager::setConfigFlag(CDockManager::HideSingleCentralWidgetTitleBar, true);
+	//CDockManager::setConfigFlag(CDockManager::HideSingleCentralWidgetTitleBar, true);
 
 	// uncomment the following line to enable focus highlighting of the dock
 	// widget that has the focus
-	CDockManager::setConfigFlag(CDockManager::FocusHighlighting, true);
+    CDockManager::setConfigFlag(CDockManager::FocusHighlighting, true);
+
+	// uncomment if you would like to enable dock widget auto hiding
+    CDockManager::setAutoHideConfigFlags(CDockManager::DefaultAutoHideConfig);
 
 	// uncomment if you would like to enable an equal distribution of the
 	// available size of a splitter to all contained dock widgets
@@ -638,11 +753,11 @@ CMainWindow::CMainWindow(QWidget *parent) :
 	d->DockManager = new CDockManager(this);
 
  #if (QT_VERSION < QT_VERSION_CHECK(6, 0, 0))
-	connect(d->PerspectiveComboBox, SIGNAL(activated(const QString&)),
-		d->DockManager, SLOT(openPerspective(const QString&)));
+	connect(d->PerspectiveComboBox, SIGNAL(activated(QString)),
+		d->DockManager, SLOT(openPerspective(QString)));
  #else
-    connect(d->PerspectiveComboBox, SIGNAL(textActivated(const QString&)),
-        d->DockManager, SLOT(openPerspective(const QString&)));
+    connect(d->PerspectiveComboBox, SIGNAL(textActivated(QString)),
+        d->DockManager, SLOT(openPerspective(QString)));
  #endif
 
 	d->createContent();
@@ -714,13 +829,14 @@ void CMainWindow::savePerspective()
 //============================================================================
 void CMainWindow::onViewToggled(bool Open)
 {
+	Q_UNUSED(Open);
 	auto DockWidget = qobject_cast<ads::CDockWidget*>(sender());
 	if (!DockWidget)
 	{
 		return;
 	}
 
-	qDebug() << DockWidget->objectName() << " viewToggled(" << Open << ")";
+	//qDebug() << DockWidget->objectName() << " viewToggled(" << Open << ")";
 }
 
 
@@ -744,6 +860,8 @@ void CMainWindow::createEditor()
 	QObject* Sender = sender();
 	QVariant vFloating = Sender->property("Floating");
 	bool Floating = vFloating.isValid() ? vFloating.toBool() : true;
+	QVariant vTabbed = Sender->property("Tabbed");
+	bool Tabbed = vTabbed.isValid() ? vTabbed.toBool() : true;
 	auto DockWidget = d->createEditorWidget();
 	DockWidget->setFeature(ads::CDockWidget::DockWidgetDeleteOnClose, true);
 	DockWidget->setFeature(ads::CDockWidget::DockWidgetForceCloseWithArea, true);
@@ -755,31 +873,38 @@ void CMainWindow::createEditor()
 		FloatingWidget->move(QPoint(20, 20));
 		d->LastCreatedFloatingEditor = DockWidget;
 		d->LastDockedEditor.clear();
+		return;
     }
-    else
-    {
-    	ads::CDockAreaWidget* EditorArea = d->LastDockedEditor ? d->LastDockedEditor->dockAreaWidget() : nullptr;
-    	if (EditorArea)
-    	{
-    		std::cout << "DockAreaCount before: " << EditorArea->dockContainer()->dockAreaCount() << std::endl;
-    		d->DockManager->setConfigFlag(ads::CDockManager::EqualSplitOnInsertion, true);
-    		d->DockManager->addDockWidget(ads::RightDockWidgetArea, DockWidget, EditorArea);
-    		std::cout << "DockAreaCount after: " << DockWidget->dockContainer()->dockAreaCount() << std::endl;
-    	}
-    	else
-    	{
-    		if (d->LastCreatedFloatingEditor)
-    		{
-    			std::cout << "LastCreated" << std::endl;
-    			d->DockManager->addDockWidget(ads::RightDockWidgetArea, DockWidget, d->LastCreatedFloatingEditor->dockAreaWidget());
-    		}
-    		else
-    		{
-    			d->DockManager->addDockWidget(ads::TopDockWidgetArea, DockWidget);
-    		}
-    	}
-    	d->LastDockedEditor = DockWidget;
-    }
+
+
+	ads::CDockAreaWidget* EditorArea = d->LastDockedEditor ? d->LastDockedEditor->dockAreaWidget() : nullptr;
+	if (EditorArea)
+	{
+		if (Tabbed)
+		{
+			// Test inserting the dock widget tab at a given position instead
+			// of appending it. This function inserts the new dock widget as
+			// first tab
+			d->DockManager->addDockWidgetTabToArea(DockWidget, EditorArea, 0);
+		}
+		else
+		{
+			d->DockManager->setConfigFlag(ads::CDockManager::EqualSplitOnInsertion, true);
+			d->DockManager->addDockWidget(ads::RightDockWidgetArea, DockWidget, EditorArea);
+		}
+	}
+	else
+	{
+		if (d->LastCreatedFloatingEditor)
+		{
+			d->DockManager->addDockWidget(ads::RightDockWidgetArea, DockWidget, d->LastCreatedFloatingEditor->dockAreaWidget());
+		}
+		else
+		{
+			d->DockManager->addDockWidget(ads::TopDockWidgetArea, DockWidget);
+		}
+	}
+	d->LastDockedEditor = DockWidget;
 }
 
 
@@ -797,6 +922,20 @@ void CMainWindow::onEditorCloseRequested()
 }
 
 
+//============================================================================
+void CMainWindow::onImageViewerCloseRequested()
+{
+	auto DockWidget = qobject_cast<ads::CDockWidget*>(sender());
+	int Result = QMessageBox::question(this, "Close Image Viewer", QString("%1 "
+		"contains unsaved changes? Would you like to close it?")
+		.arg(DockWidget->windowTitle()));
+	if (QMessageBox::Yes == Result)
+	{
+		DockWidget->closeDockWidget();
+	}
+}
+
+
 //============================================================================
 void CMainWindow::createTable()
 {
@@ -831,3 +970,45 @@ void CMainWindow::toggleDockWidgetWindowTitle()
 	d->WindowTitleTestDockWidget->setWindowTitle(Title);
 }
 
+
+//============================================================================
+void CMainWindow::applyVsStyle()
+{
+	QFile StyleSheetFile(":adsdemo/res/visual_studio_light.css");
+	StyleSheetFile.open(QIODevice::ReadOnly);
+	QTextStream StyleSheetStream(&StyleSheetFile);
+	auto Stylesheet = StyleSheetStream.readAll();
+	StyleSheetFile.close();
+	d->DockManager->setStyleSheet(Stylesheet);
+}
+
+
+//============================================================================
+void CMainWindow::createImageViewer()
+{
+	QAction* a = qobject_cast<QAction*>(sender());
+	qDebug() << "createImageViewer " << a->text();
+
+	auto DockWidget = d->createImageViewer();
+	DockWidget->setFeature(ads::CDockWidget::DockWidgetDeleteOnClose, true);
+	DockWidget->setFeature(ads::CDockWidget::DockWidgetForceCloseWithArea, true);
+	DockWidget->setFeature(ads::CDockWidget::CustomCloseHandling, true);
+	DockWidget->resize(QSize(640, 480));
+	connect(DockWidget, &ads::CDockWidget::closeRequested, this,
+		&CMainWindow::onImageViewerCloseRequested);
+
+	if (a->text().startsWith("Floating"))
+	{
+		auto FloatingWidget = d->DockManager->addDockWidgetFloating(DockWidget);
+		FloatingWidget->move(QPoint(20, 20));
+	}
+	else if (a->text().startsWith("Docked"))
+	{
+		d->DockManager->addDockWidget(ads::RightDockWidgetArea, DockWidget);
+	}
+	else if (a->text().startsWith("Pinned"))
+	{
+		d->DockManager->addAutoHideDockWidget(ads::SideBarLeft, DockWidget);
+	}
+}
+

demo/MainWindow.h

@@ -63,8 +63,11 @@ private slots:
 	void createEditor();
 	void createTable();
 	void onEditorCloseRequested();
+	void onImageViewerCloseRequested();
 	void showStatusDialog();
 	void toggleDockWidgetWindowTitle();
+	void applyVsStyle();
+	void createImageViewer();
 };
 
 #endif // MAINWINDOW_H

demo/RenderWidget.cpp

@@ -0,0 +1,108 @@
+//============================================================================
+/// \file   RenderWidget.cpp
+/// \author Uwe Kindler
+/// \date   04.11.2022
+/// \brief  Implementation of CRenderWidget
+//============================================================================
+
+
+//============================================================================
+//                                   INCLUDES
+//============================================================================
+#include "RenderWidget.h"
+
+#include <QPainter>
+#include <math.h>
+
+
+//===========================================================================
+CRenderWidget::CRenderWidget(QWidget* Parent) :
+	QWidget(Parent), m_ScaleFactor(1)
+{
+	this->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored);
+	this->setCursor(Qt::OpenHandCursor);
+}
+
+//===========================================================================
+CRenderWidget::~CRenderWidget()
+{
+
+}
+
+//===========================================================================
+void CRenderWidget::showImage(const QImage& Image)
+{
+	m_Image = QPixmap::fromImage(Image);
+	this->adjustWidgetSize();
+	this->repaint();
+}
+
+//===========================================================================
+void CRenderWidget::paintEvent(QPaintEvent* Event)
+{
+	Q_UNUSED(Event);
+	QPainter Painter(this);
+	Painter.setRenderHint(QPainter::SmoothPixmapTransform, true);
+	Painter.setRenderHint(QPainter::Antialiasing, true);
+	Painter.scale(m_ScaleFactor, m_ScaleFactor);
+	Painter.drawPixmap(QPoint(0, 0), m_Image);
+}
+
+//============================================================================
+void CRenderWidget::zoomIn()
+{
+	scaleImage(1.25);
+}
+
+//============================================================================
+void CRenderWidget::zoomOut()
+{
+	scaleImage(0.8);
+}
+
+//============================================================================
+void CRenderWidget::zoomByValue(double ZoomValue)
+{
+	scaleImage(ZoomValue);
+}
+
+//============================================================================
+void CRenderWidget::normalSize()
+{
+	m_ScaleFactor = 1;
+	this->adjustWidgetSize();
+}
+
+//============================================================================
+void CRenderWidget::scaleImage(double ScaleFactor)
+{
+	m_ScaleFactor *= ScaleFactor;
+	this->adjustWidgetSize();
+}
+
+//============================================================================
+void CRenderWidget::adjustWidgetSize()
+{
+	QSize ScaledImageSize = m_Image.size() * m_ScaleFactor;
+	if (ScaledImageSize != this->size())
+	{
+		this->setFixedSize(ScaledImageSize);
+	}
+}
+
+//============================================================================
+void CRenderWidget::scaleToSize(const QSize& TargetSize)
+{
+	if (m_Image.isNull())
+	{
+		return;
+	}
+	double ScaleFactorH = (double) TargetSize.width() / m_Image.size().width();
+	double ScaleFactorV = (double) TargetSize.height()
+	    / m_Image.size().height();
+	m_ScaleFactor = (ScaleFactorH < ScaleFactorV) ? ScaleFactorH : ScaleFactorV;
+	this->adjustWidgetSize();
+}
+
+//---------------------------------------------------------------------------
+// EOF RenderWidget.cpp

demo/RenderWidget.h

@@ -0,0 +1,111 @@
+#ifndef RenderWidgetH
+#define RenderWidgetH
+//============================================================================
+/// \file   RenderWidget.h
+/// \author Uwe Kindler
+/// \date   04.11.2022
+/// \brief  Declaration of CRenderWidget
+//============================================================================
+
+//============================================================================
+//                                   INCLUDES
+//============================================================================
+#include <QWidget>
+#include <QPixmap>
+
+//============================================================================
+//                           FORWARD DECLARATIONS
+//============================================================================
+class QImage;
+
+
+/**
+ * @brief Widget for fast display of images (i.e. for video capture devices)
+ */
+class CRenderWidget : public QWidget
+{
+	Q_OBJECT
+private:
+	QPixmap m_Image;
+	double m_ScaleFactor;
+
+protected:
+	/**
+	 * @brief Reimplemented paint event method showing actual image.
+	 */
+	void paintEvent(QPaintEvent* PaintEvent);
+
+	/**
+	 * @brief Change scale factor
+	 */
+	void scaleImage(double ScaleFactor);
+
+	/**
+	 * @brief Adjust widget size to size of image.
+	 */
+	void adjustWidgetSize();
+
+public:
+	/**
+	 * Constructor
+	 * @param[in] Parent Parent widget.
+	 */
+	CRenderWidget(QWidget* Parent);
+
+	/**
+	 * Destructor
+	 */
+	virtual ~CRenderWidget();
+
+signals:
+	/**
+	 * @brief Signalize change of captured image size.
+	 * @param ImageSize New image size.
+	 */
+	void imageSizeChanged(const QSize& ImageSize);
+
+public slots:
+	/**
+	 * @brief Show new image in render widget.
+	 */
+	void showImage(const QImage& Image);
+
+	/**
+	 * @brief Zoom into the scene.
+	 * This function decreases the scaling factor by setting it to the previous
+	 * value in internal scaling list.
+	 * @brief Steps The number of steps to zoom in. One step is 25%.
+	 */
+	void zoomIn();
+
+	/**
+	 * @brief Zoom out of the scene.
+	 * This function decreases the scaling factor by setting it to the next
+	 * value in internal scaling list.
+	 * @brief Steps The number of steps to zoom out. One step is 25%.
+	 */
+	void zoomOut();
+
+	/**
+	 * @brief Change zoom by zoom value.
+	 * @param[in] ZoomValue This is the zoom value to apply. A value of 1
+	 * means no change a value > 1 increases the image (i.e. 1.25 would increase
+	 * the image by 25%) and a value of < 1 decreases the image size (i.e.
+	 * a value of 0.8 would decrease the image size by 25%).
+	 */
+	void zoomByValue(double ZoomValue);
+
+	/**
+	 * @brief Resets the actual scaling to 1 and display the image with its
+	 *        actual pixel size.
+	 */
+	void normalSize();
+
+	/**
+	 * @brief Scales the wiget and its content image to the given TargetSize
+	 */
+	void scaleToSize(const QSize& TargetSize);
+}; // class CRenderWidget
+
+//---------------------------------------------------------------------------
+#endif // RenderWidgetH

demo/app.rc

@@ -0,0 +1 @@
+IDI_ICON1               ICON    DISCARDABLE     "app.ico"

demo/demo.pro

@@ -15,19 +15,25 @@ lessThan(QT_MAJOR_VERSION, 6) {
 CONFIG += c++14
 CONFIG += debug_and_release
 DEFINES += QT_DEPRECATED_WARNINGS
+RC_FILE += app.rc
 
 adsBuildStatic {
     DEFINES += ADS_STATIC
 }
 
-SOURCES += \
-	main.cpp \
-	MainWindow.cpp \
-	StatusDialog.cpp
 
 HEADERS += \
 	MainWindow.h \
-	StatusDialog.h
+	StatusDialog.h \
+	ImageViewer.h \
+	RenderWidget.h
+
+SOURCES += \
+	main.cpp \
+	MainWindow.cpp \
+	StatusDialog.cpp \
+	ImageViewer.cpp \
+	RenderWidget.cpp
 
 FORMS += \
 	mainwindow.ui \

demo/demo.qrc

@@ -17,5 +17,24 @@
         <file>images/create_floating_editor.svg</file>
         <file>images/create_floating_table.svg</file>
         <file>images/docked_editor.svg</file>
+        <file>images/tab.svg</file>
+        <file>res/visual_studio_light.css</file>
+        <file>images/color_lens.svg</file>
+        <file>images/ads_icon.svg</file>
+        <file>images/ads_logo.svg</file>
+        <file>images/find_in_page.svg</file>
+        <file>images/perm_media.svg</file>
+        <file>images/zoom_in.svg</file>
+        <file>images/zoom_out.svg</file>
+        <file>images/zoom_out_map.svg</file>
+        <file>images/ads_tile_blue.svg</file>
+        <file>images/ads_tile_blue_light.svg</file>
+        <file>images/ads_tile_green.svg</file>
+        <file>images/ads_tile_orange.svg</file>
+        <file>images/photo.svg</file>
+        <file>images/crop_original.svg</file>
+        <file>images/panorama.svg</file>
+        <file>images/ads_icon2.svg</file>
+        <file>images/font_download.svg</file>
     </qresource>
 </RCC>

demo/images/ads_icon.svg

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg width="1024" height="1024" version="1.1" viewBox="0 0 1024 1024" xmlns="http://www.w3.org/2000/svg">
+ <text x="1251.1022" y="1305.4956" fill="#000000" font-family="sans-serif" font-size="40px" style="line-height:1.25" xml:space="preserve"><tspan x="1251.1022" y="1305.4956"/></text>
+ <g transform="translate(581.23 1750.5)">
+  <path d="m191.64-726.53h-521.75c-138.69 0-251.12-112.43-251.12-251.12v-521.75c0-138.69 112.43-251.12 251.12-251.12h521.75c138.69 0 251.12 112.43 251.12 251.12v521.75c0 138.69-112.43 251.12-251.12 251.12z" fill="#e0e0e0" style="mix-blend-mode:normal"/>
+  <path d="m-175.9-1515.9v256h469.33v-256z" fill="#009ddd" style="mix-blend-mode:normal"/>
+  <path d="m80.1-1217.2v256h213.33v-256z" fill="#ff9833" style="mix-blend-mode:normal"/>
+  <path d="m-175.9-1217.2v256h213.33v-256z" fill="#accb01" style="mix-blend-mode:normal"/>
+  <path d="m-431.9-1515.9v554.67h213.33v-554.67z" fill="#0083c3" style="mix-blend-mode:normal"/>
+ </g>
+</svg>

demo/images/ads_icon2.svg

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg width="1024" height="1024" version="1.1" viewBox="0 0 1024 1024" xmlns="http://www.w3.org/2000/svg">
+ <desc>electric_iron icon - Licensed under Iconfu Standard License v1.0 (https://www.iconfu.com/iconfu_standard_license) - Incors GmbH</desc>
+ <g transform="matrix(1.4118 0 0 1.4118 -210.82 -210.82)" stroke-width=".50173">
+  <text x="1251.1022" y="1305.4956" fill="#000000" font-family="sans-serif" font-size="40px" style="line-height:1.25" xml:space="preserve"><tspan x="1251.1022" y="1305.4956" stroke-width=".70833"/></text>
+  <path d="m405.33 234.66v256h469.33v-256z" fill="#009ddd" style="mix-blend-mode:normal"/>
+  <path d="m661.33 533.33v256h213.33v-256z" fill="#ff9833" style="mix-blend-mode:normal"/>
+  <path d="m405.33 533.33v256h213.33v-256z" fill="#accb01" style="mix-blend-mode:normal"/>
+  <path d="m149.33 234.66v554.67h213.33v-554.67z" fill="#0083c3" style="mix-blend-mode:normal"/>
+ </g>
+</svg>

demo/images/ads_logo.svg

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg width="6907.3" height="1024" version="1.1" viewBox="0 0 6907.3 1024" xmlns="http://www.w3.org/2000/svg">
+ <text x="1251.1022" y="1305.4956" fill="#000000" font-family="sans-serif" font-size="40px" style="line-height:1.25" xml:space="preserve"><tspan x="1251.1022" y="1305.4956"/></text>
+ <text x="1178.9221" y="718.37329" fill="#8f918f" font-family="sans-serif" font-size="628px" style="line-height:1.25" xml:space="preserve"><tspan x="1178.9221" y="718.37329" fill="#8f918f" font-family="'Segoe UI'" font-size="628px" font-weight="300">Qt Advanced Docking</tspan></text>
+ <g transform="translate(581.23 1750.5)">
+  <path d="m191.64-726.53h-521.75c-138.69 0-251.12-112.43-251.12-251.12v-521.75c0-138.69 112.43-251.12 251.12-251.12h521.75c138.69 0 251.12 112.43 251.12 251.12v521.75c0 138.69-112.43 251.12-251.12 251.12z" fill="#e0e0e0" style="mix-blend-mode:normal"/>
+  <path d="m-175.9-1515.9v256h469.33v-256z" fill="#009ddd" style="mix-blend-mode:normal"/>
+  <path d="m80.1-1217.2v256h213.33v-256z" fill="#ff9833" style="mix-blend-mode:normal"/>
+  <path d="m-175.9-1217.2v256h213.33v-256z" fill="#accb01" style="mix-blend-mode:normal"/>
+  <path d="m-431.9-1515.9v554.67h213.33v-554.67z" fill="#0083c3" style="mix-blend-mode:normal"/>
+ </g>
+</svg>

demo/images/ads_tile_blue.svg

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg width="1024" height="1024" version="1.1" viewBox="0 0 270.93 270.93" xmlns="http://www.w3.org/2000/svg">
+ <path d="m-2.5e-6 -2.5e-6v270.93h270.93v-270.93z" fill="#0083c3" stroke-width=".26458" style="mix-blend-mode:normal"/>
+ <g fill="#fff" fill-opacity=".25">
+  <g transform="matrix(.12402 0 0 .12402 71.967 73.674)" stroke-width="4.7887">
+   <path d="m405.33 234.66v256h469.33v-256z" style="mix-blend-mode:normal"/>
+   <path d="m661.33 533.33v256h213.33v-256z" style="mix-blend-mode:normal"/>
+   <path d="m405.33 533.33v256h213.33v-256z" style="mix-blend-mode:normal"/>
+   <path d="m149.33 234.66v554.67h213.33v-554.67z" style="mix-blend-mode:normal"/>
+  </g>
+  <g stroke-width=".26458" aria-label="Docking">
+   <path d="m100.07 182.94q0 2.7805-1.5208 4.1938-1.5054 1.3979-4.2091 1.3979h-3.057v-10.968h3.3796q1.6437 0 2.8573 0.61447 1.2289 0.61446 1.8895 1.8127 0.66055 1.1982 0.66055 2.9494zm-1.4594 0.0461q0-2.1967-1.0907-3.2106-1.0753-1.0292-3.057-1.0292h-1.7973v8.6026h1.4901q4.4549 0 4.4549-4.3627z"/>
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+   <path d="m125.64 188.69q-1.106 0-1.9509-0.44549-0.84489-0.44549-1.3365-1.3826-0.47622-0.93707-0.47622-2.3964 0-1.5208 0.49158-2.4732 0.50693-0.95243 1.3826-1.3979t1.9817-0.44549q0.61447 0 1.1982 0.13826 0.59911 0.12289 0.96779 0.30723l-0.41477 1.1214q-0.36868-0.13826-0.86025-0.26115-0.49158-0.1229-0.9217-0.1229-2.4272 0-2.4272 3.1184 0 1.4901 0.58374 2.2889 0.59911 0.78345 1.7666 0.78345 0.66055 0 1.1828-0.13826 0.5223-0.13825 0.95242-0.33795v1.1982q-0.41476 0.21506-0.9217 0.3226-0.49157 0.12289-1.1982 0.12289z"/>
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+  </g>
+  <g stroke-width=".26458" aria-label="Qt Advanced ">
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demo/images/ads_tile_green.svg

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demo/images/ads_tile_orange.svg

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+   <path d="m175.73 180.15q0.81417 0 1.4594 0.30724 0.66055 0.30723 1.1214 0.93706h0.0768l0.18434-1.0907h1.0753v8.3721q0 1.7666-0.90634 2.6576-0.89098 0.89098-2.7805 0.89098-1.8127 0-2.9648-0.5223v-1.2443q1.2136 0.6452 3.0416 0.6452 1.06 0 1.6591-0.62983 0.61447-0.61447 0.61447-1.6898v-0.3226q0-0.18434 0.0154-0.52229 0.0154-0.35332 0.0307-0.49158h-0.0615q-0.82953 1.2443-2.55 1.2443-1.5976 0-2.504-1.1214-0.89098-1.1214-0.89098-3.1338 0-1.9663 0.89098-3.1184 0.90634-1.1675 2.4886-1.1675zm0.18434 1.1368q-1.0292 0-1.5976 0.82953-0.56838 0.81417-0.56838 2.335t0.55302 2.335q0.55302 0.79881 1.6437 0.79881 1.2443 0 1.8127-0.66056 0.56838-0.67591 0.56838-2.166v-0.32259q0-1.6744-0.58374-2.4118-0.58375-0.73736-1.828-0.73736z"/>
+  </g>
+  <g stroke-width=".26458" aria-label="Qt Advanced ">
+   <path d="m100.61 89.668q0 2.0124-0.81417 3.441-0.79881 1.4133-2.3811 1.9356l2.6269 2.7344h-1.9817l-2.1199-2.4732q-0.09217 0-0.1997 0-0.09217 0.01536-0.18434 0.01536-1.7051 0-2.8419-0.70664-1.1214-0.70664-1.6744-1.9817-0.55302-1.275-0.55302-2.9802 0-1.6744 0.55302-2.9341 0.55302-1.275 1.6744-1.9817 1.1368-0.70664 2.8573-0.70664 1.6437 0 2.7651 0.70664 1.1214 0.69128 1.6898 1.9663 0.58374 1.2597 0.58374 2.9648zm-8.664 0q0 2.0738 0.87562 3.272 0.87562 1.1829 2.7344 1.1829 1.8588 0 2.719-1.1829 0.87562-1.1982 0.87562-3.272 0-2.0738-0.86026-3.2413-0.86026-1.1829-2.719-1.1829-1.8741 0-2.7497 1.1829-0.87562 1.1675-0.87562 3.2413z"/>
+   <path d="m105.6 94.215q0.30723 0 0.62983-0.04609 0.32259-0.04609 0.52229-0.12289v1.0292q-0.21506 0.10753-0.61446 0.16898-0.39941 0.07681-0.76809 0.07681-0.64519 0-1.1982-0.21506-0.53766-0.23042-0.87562-0.78345-0.33796-0.55302-0.33796-1.5515v-4.7929h-1.1675v-0.64519l1.1829-0.53766 0.53766-1.7512h0.7988v1.8895h2.3811v1.0446h-2.3811v4.7621q0 0.75272 0.35332 1.1214 0.36868 0.35332 0.93707 0.35332z"/>
+   <path d="m119.46 95.168-1.3211-3.3949h-4.3474l-1.3058 3.3949h-1.3979l4.2859-11.014h1.2443l4.2706 11.014zm-1.7359-4.6239-1.2289-3.3181q-0.0461-0.12289-0.15362-0.44549-0.10753-0.3226-0.21507-0.66055-0.0922-0.35332-0.15361-0.53766-0.1229 0.47621-0.26115 0.93706-0.12289 0.44549-0.21507 0.70664l-1.2443 3.3181z"/>
+   <path d="m125.13 95.321q-1.5362 0-2.4579-1.06-0.9217-1.0753-0.9217-3.1952t0.9217-3.1952q0.93706-1.0907 2.4732-1.0907 0.95243 0 1.5515 0.35332 0.61447 0.35332 0.99851 0.86026h0.0922q-0.0307-0.1997-0.0614-0.58374-0.0307-0.3994-0.0307-0.62983v-3.2874h1.3518v11.675h-1.0907l-0.1997-1.106h-0.0614q-0.36868 0.5223-0.98314 0.89098-0.61447 0.36868-1.5823 0.36868zm0.21506-1.1214q1.3058 0 1.828-0.70664 0.53766-0.722 0.53766-2.166v-0.24579q0-1.5362-0.50694-2.3503-0.50694-0.82953-1.8741-0.82953-1.0907 0-1.6437 0.87562-0.53766 0.86026-0.53766 2.3196 0 1.4747 0.53766 2.2889 0.55302 0.81417 1.6591 0.81417z"/>
+   <path d="m133.47 95.168-3.1184-8.2339h1.444l1.7512 4.8543q0.12289 0.33796 0.26115 0.75272 0.13825 0.41477 0.24579 0.79881 0.10753 0.38404 0.15361 0.62983h0.0615q0.0461-0.24579 0.16898-0.62983 0.12289-0.3994 0.26115-0.79881 0.13825-0.41477 0.26115-0.75272l1.7512-4.8543h1.444l-3.1338 8.2339z"/>
+   <path d="m142.58 86.796q1.5054 0 2.2274 0.66055 0.722 0.66055 0.722 2.1046v5.607h-0.98315l-0.26115-1.1675h-0.0615q-0.53766 0.67591-1.1368 0.99851-0.59911 0.3226-1.6283 0.3226-1.1214 0-1.8588-0.58374-0.73736-0.59911-0.73736-1.8588 0-1.2289 0.96778-1.8895 0.96779-0.67591 2.9802-0.73736l1.3979-0.04609v-0.49158q0-1.0292-0.44549-1.4286t-1.2597-0.3994q-0.64519 0-1.2289 0.1997-0.58374 0.18434-1.0907 0.43013l-0.41476-1.0139q0.53766-0.29187 1.275-0.49158 0.73736-0.21506 1.5362-0.21506zm1.613 4.3474-1.2136 0.04609q-1.5362 0.06145-2.1353 0.49157-0.58375 0.43013-0.58375 1.2136 0 0.69128 0.41477 1.0139 0.43013 0.3226 1.0907 0.3226 1.0292 0 1.7205-0.56838 0.70664-0.58374 0.70664-1.782z"/>
+   <path d="m152.04 86.78q1.4747 0 2.2274 0.722 0.75272 0.722 0.75272 2.3043v5.3612h-1.3365v-5.2691q0-1.9817-1.8434-1.9817-1.3672 0-1.8895 0.76808t-0.5223 2.2121v4.2706h-1.3518v-8.2339h1.0907l0.1997 1.1214h0.0768q0.39941-0.64519 1.106-0.95243 0.70663-0.3226 1.4901-0.3226z"/>
+   <path d="m160.87 95.321q-1.106 0-1.9509-0.44549-0.8449-0.44549-1.3365-1.3826-0.47622-0.93706-0.47622-2.3964 0-1.5208 0.49158-2.4732 0.50694-0.95243 1.3826-1.3979 0.87562-0.44549 1.9817-0.44549 0.61447 0 1.1982 0.13826 0.59911 0.12289 0.96779 0.30723l-0.41476 1.1214q-0.36869-0.13826-0.86026-0.26115-0.49157-0.12289-0.9217-0.12289-2.4272 0-2.4272 3.1184 0 1.4901 0.58374 2.2889 0.59911 0.78345 1.7666 0.78345 0.66055 0 1.1828-0.13826 0.5223-0.13826 0.95243-0.33796v1.1982q-0.41477 0.21506-0.92171 0.3226-0.49157 0.12289-1.1982 0.12289z"/>
+   <path d="m168.13 86.78q1.0446 0 1.8127 0.46085 0.76809 0.46085 1.1675 1.3057 0.41477 0.82953 0.41477 1.9509v0.81417h-5.6378q0.0307 1.3979 0.70664 2.1353 0.69128 0.722 1.9202 0.722 0.78345 0 1.3826-0.13826 0.61447-0.15362 1.2597-0.43013v1.1829q-0.62983 0.27651-1.2443 0.3994-0.61447 0.13826-1.4594 0.13826-1.1828 0-2.0738-0.47621t-1.3979-1.4133q-0.49157-0.93706-0.49157-2.3196 0-1.3518 0.44549-2.3196 0.46085-0.96779 1.275-1.4901 0.82953-0.5223 1.9202-0.5223zm-0.0154 1.106q-0.96779 0-1.5362 0.62983-0.55302 0.61447-0.66055 1.7205h4.1937q-0.0154-1.0446-0.49157-1.6898-0.47622-0.66055-1.5054-0.66055z"/>
+   <path d="m176.53 95.321q-1.5362 0-2.4579-1.06-0.92171-1.0753-0.92171-3.1952t0.92171-3.1952q0.93706-1.0907 2.4732-1.0907 0.95243 0 1.5515 0.35332 0.61447 0.35332 0.99851 0.86026h0.0922q-0.0307-0.1997-0.0614-0.58374-0.0307-0.3994-0.0307-0.62983v-3.2874h1.3518v11.675h-1.0907l-0.1997-1.106h-0.0614q-0.36868 0.5223-0.98315 0.89098-0.61446 0.36868-1.5822 0.36868zm0.21506-1.1214q1.3058 0 1.828-0.70664 0.53766-0.722 0.53766-2.166v-0.24579q0-1.5362-0.50693-2.3503-0.50694-0.82953-1.8741-0.82953-1.0907 0-1.6437 0.87562-0.53766 0.86026-0.53766 2.3196 0 1.4747 0.53766 2.2889 0.55302 0.81417 1.6591 0.81417z"/>
+  </g>
+ </g>
+</svg>

demo/images/color_lens.svg

@@ -0,0 +1,6 @@
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0,0,1024,1024">
+	<desc>color_lens icon - Licensed under Apache License v2.0 (http://www.apache.org/licenses/LICENSE-2.0) - Created with Iconfu.com - Derivative work of Material icons (Copyright Google Inc.)</desc>
+	<g fill="#03b8e5" fill-rule="nonzero" style="mix-blend-mode: normal">
+		<path d="M896,469.33c0,117.76 -95.57,213.34 -213.33,213.34h-75.52c-35.41,0 -64,28.59 -64,64c0,16.21 6.4,31.15 16.21,42.24c10.24,11.52 16.64,26.45 16.64,43.09c0,35.41 -28.59,64 -64,64c-212.05,0 -384,-171.95 -384,-384c0,-212.05 171.95,-384 384,-384c212.05,0 384,152.74 384,341.33zM341.33,448c0,-35.41 -28.59,-64 -64,-64c-35.41,0 -64,28.59 -64,64c0,35.41 28.59,64 64,64c35.41,0 64,-28.59 64,-64zM469.33,277.33c0,-35.41 -28.59,-64 -64,-64c-35.41,0 -64,28.59 -64,64c0,35.41 28.59,64 64,64c35.41,0 64,-28.59 64,-64zM682.67,277.33c0,-35.41 -28.59,-64 -64,-64c-35.41,0 -64,28.59 -64,64c0,35.41 28.59,64 64,64c35.41,0 64,-28.59 64,-64zM810.67,448c0,-35.41 -28.59,-64 -64,-64c-35.41,0 -64,28.59 -64,64c0,35.41 28.59,64 64,64c35.41,0 64,-28.59 64,-64z"/>
+	</g>
+</svg>

demo/images/crop_original.svg

@@ -0,0 +1,6 @@
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0,0,1024,1024">
+	<desc>crop_original icon - Licensed under Apache License v2.0 (http://www.apache.org/licenses/LICENSE-2.0) - Created with Iconfu.com - Derivative work of Material icons (Copyright Google Inc.)</desc>
+	<g fill="#03b8e5" fill-rule="nonzero" style="mix-blend-mode: normal">
+		<path d="M896,213.33v597.34c0,46.93 -38.4,85.33 -85.33,85.33h-597.34c-46.93,0 -85.33,-38.4 -85.33,-85.33v-597.34c0,-46.93 38.4,-85.33 85.33,-85.33h597.34c46.93,0 85.33,38.4 85.33,85.33zM810.67,213.33h-597.34v597.34h597.34zM746.67,725.33h-469.34l117.34,-150.61l83.62,100.69l117.34,-151.04z"/>
+	</g>
+</svg>

demo/images/find_in_page.svg

@@ -0,0 +1,6 @@
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0,0,1024,1024">
+	<desc>find_in_page icon - Licensed under Apache License v2.0 (http://www.apache.org/licenses/LICENSE-2.0) - Created with Iconfu.com - Derivative work of Material icons (Copyright Google Inc.)</desc>
+	<g fill="#03b8e5" fill-rule="nonzero" style="mix-blend-mode: normal">
+		<path d="M689.92,672c22.19,-33.71 35.41,-73.81 35.41,-117.33c0,-117.76 -95.57,-213.34 -213.33,-213.34c-117.76,0 -213.33,95.58 -213.33,213.34c0,117.76 95.57,213.33 213.33,213.33c43.52,0 83.63,-13.22 117.76,-35.41l189.01,189.01c-14.51,10.67 -31.57,17.07 -50.77,17.07h-512.43c-46.93,0 -84.9,-38.41 -84.9,-85.34l0.42,-682.66c0,-46.93 37.98,-85.34 84.91,-85.34h341.33l256,256v494.51zM512,426.67c70.83,0 128,57.17 128,128c0,70.83 -57.17,128 -128,128c-70.83,0 -128,-57.17 -128,-128c0,-70.83 57.17,-128 128,-128z"/>
+	</g>
+</svg>

demo/images/font_download.svg

@@ -0,0 +1,6 @@
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0,0,1024,1024">
+	<desc>font_download icon - Licensed under Apache License v2.0 (http://www.apache.org/licenses/LICENSE-2.0) - Created with Iconfu.com - Derivative work of Material icons (Copyright Google Inc.)</desc>
+	<g fill="#03b8e5" fill-rule="nonzero" style="mix-blend-mode: normal">
+		<path d="M938.67,170.67v682.66c0,46.93 -38.41,85.34 -85.34,85.34h-682.66c-46.93,0 -85.34,-38.41 -85.34,-85.34v-682.66c0,-46.93 38.41,-85.34 85.34,-85.34h682.66c46.93,0 85.34,38.41 85.34,85.34zM769.71,789.33l-218.03,-554.66h-79.36l-218.03,554.66h89.18l47.78,-128h240.64l48.64,128zM512,340.48l88.32,235.52h-176.64z"/>
+	</g>
+</svg>

demo/images/panorama.svg

@@ -0,0 +1,6 @@
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0,0,1024,1024">
+	<desc>panorama icon - Licensed under Apache License v2.0 (http://www.apache.org/licenses/LICENSE-2.0) - Created with Iconfu.com - Derivative work of Material icons (Copyright Google Inc.)</desc>
+	<g fill="#03b8e5" fill-rule="nonzero" style="mix-blend-mode: normal">
+		<path d="M896,853.33h-768c-46.93,0 -85.33,-38.4 -85.33,-85.33v-512c0,-46.93 38.4,-85.33 85.33,-85.33h768c46.93,0 85.33,38.4 85.33,85.33v512c0,46.93 -38.4,85.33 -85.33,85.33zM213.33,725.33h597.34l-192,-256l-149.34,192.43l-106.66,-128.43z"/>
+	</g>
+</svg>

demo/images/perm_media.svg

@@ -0,0 +1,6 @@
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0,0,1024,1024">
+	<desc>perm_media icon - Licensed under Apache License v2.0 (http://www.apache.org/licenses/LICENSE-2.0) - Created with Iconfu.com - Derivative work of Material icons (Copyright Google Inc.)</desc>
+	<g fill="#03b8e5" fill-rule="nonzero" style="mix-blend-mode: normal">
+		<path d="M1024,256v426.67c0,46.93 -38.4,85.33 -85.33,85.33h-682.67c-46.93,0 -85.33,-38.4 -85.33,-85.33l0.42,-512c0,-46.93 37.98,-85.34 84.91,-85.34h256l85.33,85.34h341.34c46.93,0 85.33,38.4 85.33,85.33zM85.33,853.33h768v85.34h-768c-46.93,0 -85.33,-38.41 -85.33,-85.34l0.43,-384h-0.43v-213.33h85.33zM896,640l-149.33,-192l-106.67,128.43l-149.33,-192.43l-192,256z"/>
+	</g>
+</svg>

demo/images/photo.svg

@@ -0,0 +1,6 @@
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0,0,1024,1024">
+	<desc>photo icon - Licensed under Apache License v2.0 (http://www.apache.org/licenses/LICENSE-2.0) - Created with Iconfu.com - Derivative work of Material icons (Copyright Google Inc.)</desc>
+	<g fill="#03b8e5" fill-rule="nonzero" style="mix-blend-mode: normal">
+		<path d="M810.67,896h-597.34c-46.93,0 -85.33,-38.4 -85.33,-85.33v-597.34c0,-46.93 38.4,-85.33 85.33,-85.33h597.34c46.93,0 85.33,38.4 85.33,85.33v597.34c0,46.93 -38.4,85.33 -85.33,85.33zM213.33,768h597.34l-192,-256l-149.34,192.43l-106.66,-128.43z"/>
+	</g>
+</svg>

demo/images/tab.svg

@@ -0,0 +1,6 @@
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0,0,1024,1024">
+	<desc>tab icon - Licensed under Apache License v2.0 (http://www.apache.org/licenses/LICENSE-2.0) - Created with Iconfu.com - Derivative work of Material icons (Copyright Google Inc.)</desc>
+	<g fill="#03b8e5" fill-rule="nonzero" style="mix-blend-mode: normal">
+		<path d="M981.33,213.33v597.34c0,46.93 -38.4,85.33 -85.33,85.33h-768c-46.93,0 -85.33,-38.4 -85.33,-85.33v-597.34c0,-46.93 38.4,-85.33 85.33,-85.33h768c46.93,0 85.33,38.4 85.33,85.33zM896,384h-341.33v-170.67h-426.67v597.34h768z"/>
+	</g>
+</svg>

demo/images/zoom_in.svg

@@ -0,0 +1,6 @@
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0,0,1024,1024">
+	<desc>zoom_in icon - Licensed under Apache License v2.0 (http://www.apache.org/licenses/LICENSE-2.0) - Created with Iconfu.com - Derivative work of Material icons (Copyright Google Inc.)</desc>
+	<g fill="#03b8e5" fill-rule="nonzero" style="mix-blend-mode: normal">
+		<path d="M874.24,810.67l-63.57,63.57l-213.34,-212.91v-33.7l-11.52,-11.95c-48.64,41.81 -111.79,66.99 -180.48,66.99c-153.17,0 -277.33,-124.17 -277.33,-277.34c0,-153.17 124.16,-277.33 277.33,-277.33c153.17,0 277.34,124.16 277.34,277.33c0,68.69 -25.18,131.84 -66.99,180.48l11.95,11.52h33.7zM597.33,405.33c0,-106.24 -85.76,-192 -192,-192c-106.24,0 -192,85.76 -192,192c0,106.24 85.76,192 192,192c106.24,0 192,-85.76 192,-192zM512,426.67h-85.33v85.33h-42.67v-85.33h-85.33v-42.67h85.33v-85.33h42.67v85.33h85.33z"/>
+	</g>
+</svg>

demo/images/zoom_out.svg

@@ -0,0 +1,6 @@
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0,0,1024,1024">
+	<desc>zoom_out icon - Licensed under Apache License v2.0 (http://www.apache.org/licenses/LICENSE-2.0) - Created with Iconfu.com - Derivative work of Material icons (Copyright Google Inc.)</desc>
+	<g fill="#03b8e5" fill-rule="nonzero" style="mix-blend-mode: normal">
+		<path d="M874.24,810.67l-63.57,63.57l-213.34,-212.91v-33.7l-11.52,-11.95c-48.64,41.81 -111.79,66.99 -180.48,66.99c-153.17,0 -277.33,-124.17 -277.33,-277.34c0,-153.17 124.16,-277.33 277.33,-277.33c153.17,0 277.34,124.16 277.34,277.33c0,68.69 -25.18,131.84 -66.99,180.48l11.95,11.52h33.7zM597.33,405.33c0,-106.24 -85.76,-192 -192,-192c-106.24,0 -192,85.76 -192,192c0,106.24 85.76,192 192,192c106.24,0 192,-85.76 192,-192zM298.67,384h213.33v42.67h-213.33z"/>
+	</g>
+</svg>

demo/images/zoom_out_map.svg

@@ -0,0 +1,6 @@
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0,0,1024,1024">
+	<desc>zoom_out_map icon - Licensed under Apache License v2.0 (http://www.apache.org/licenses/LICENSE-2.0) - Created with Iconfu.com - Derivative work of Material icons (Copyright Google Inc.)</desc>
+	<g fill="#03b8e5" fill-rule="nonzero" style="mix-blend-mode: normal">
+		<path d="M896,896h-256l98.13,-98.13l-123.3,-122.46l60.58,-60.58l122.46,123.3l98.13,-98.13zM896,128v256l-98.13,-98.13l-122.46,123.3l-60.58,-60.58l123.3,-122.46l-98.13,-98.13zM128,896v-256l98.13,98.13l122.46,-123.3l60.58,60.58l-123.3,122.46l98.13,98.13zM128,128h256l-98.13,98.13l123.3,122.46l-60.58,60.58l-122.46,-123.3l-98.13,98.13z"/>
+	</g>
+</svg>

demo/main.cpp

@@ -45,17 +45,18 @@ int main(int argc, char *argv[])
 	QApplication a(argc, argv);
 	a.setApplicationName("Advanced Docking System Demo");
 	a.setQuitOnLastWindowClosed(true);
-
-	QFile StyleSheetFile(":/adsdemo/app.css");
-	StyleSheetFile.open(QIODevice::ReadOnly);
-	QTextStream StyleSheetStream(&StyleSheetFile);
-	a.setStyleSheet(StyleSheetStream.readAll());
-	StyleSheetFile.close();
+	a.setWindowIcon(QIcon(":/adsdemo/images/ads_icon2.svg"));
 
 	qInstallMessageHandler(myMessageOutput);
 	qDebug() << "Message handler test";
 
 	CMainWindow mw;
 	mw.show();
+
+	QFile StyleSheetFile(":/adsdemo/app.css");
+	StyleSheetFile.open(QIODevice::ReadOnly);
+	QTextStream StyleSheetStream(&StyleSheetFile);
+	a.setStyleSheet(StyleSheetStream.readAll());
+	StyleSheetFile.close();
 	return a.exec();
 }

demo/res/visual_studio_light.css

@@ -0,0 +1,379 @@
+
+/*
+ * Visual Studio like light theme
+ */
+ 
+/*****************************************************************************
+ * CDockManager
+ *****************************************************************************/
+ads--CDockManager 
+{
+	background: palette(window);
+} 
+ 
+ 
+
+/*****************************************************************************
+ * CDockContainerWidget
+ *****************************************************************************/ 
+ads--CDockContainerWidget {
+	background: palette(window);
+	padding: 2px;
+}
+
+
+/*****************************************************************************
+ * CDockAreaWidget
+ *****************************************************************************/
+ads--CDockAreaWidget {
+	background: palette(window);
+	/*border: 1px solid palette(dark);*/
+}
+
+
+ads--CDockAreaTitleBar {
+	background: transparent;
+	border-bottom: 2px solid rgb(204, 204, 204);
+	padding-bottom: 0px;
+}
+
+
+ads--CTitleBarButton {
+	padding: 0px 0px;
+	background: transparent;
+	border: none;
+}
+
+ads--CTitleBarButton:hover {
+	background: rgba(0, 0, 0, 24);
+}
+
+ads--CTitleBarButton:pressed {
+	background: rgba(0, 0, 0, 48);
+}
+
+QScrollArea#dockWidgetScrollArea {
+	padding: 0px;
+	border: none;
+}
+
+#tabsMenuButton::menu-indicator {
+	image: none;
+}
+
+
+#dockAreaCloseButton {
+	qproperty-icon: url(:/ads/images/close-button.svg),
+		url(:/ads/images/close-button-disabled.svg) disabled;
+	qproperty-iconSize: 16px;
+}
+
+#detachGroupButton {
+	qproperty-icon: url(:/ads/images/detach-button.svg),
+		url(:/ads/images/detach-button-disabled.svg) disabled;
+	qproperty-iconSize: 16px;	
+}
+
+
+ads--CDockAreaWidget[focused="true"] ads--CDockAreaTitleBar {
+	border-bottom: 2px solid palette(highlight);
+}
+
+
+/*****************************************************************************
+ * CDockWidgetTab
+ *****************************************************************************/
+ads--CDockWidgetTab {
+	background: palette(window);
+	border: none;
+	padding: 0 0px;
+	qproperty-iconSize: 16px 16px;/* this is optional in case you would like to change icon size*/
+}
+
+ads--CDockWidgetTab[activeTab="true"] {
+	background: rgb(204, 204, 204);
+}
+
+ads--CDockWidgetTab QLabel {
+	color: palette(foreground);
+}
+
+ads--CDockWidgetTab[activeTab="true"] QLabel {
+	color: palette(foreground);
+}
+
+
+#tabCloseButton {
+	margin-top: 2px;
+	background: none;
+	border: none;
+	padding: 0px -2px;
+	qproperty-icon: url(:/ads/images/close-button.svg),
+		url(:/ads/images/close-button-disabled.svg) disabled;
+	qproperty-iconSize: 16px;
+}
+
+#tabCloseButton:hover {
+	/*border: 1px solid rgba(0, 0, 0, 32);*/
+	background: rgba(0, 0, 0, 24);
+}
+
+#tabCloseButton:pressed {
+	background: rgba(0, 0, 0, 48);
+}
+
+
+/* Focus related styling */
+ads--CDockWidgetTab[focused="true"] {
+	background: palette(highlight);
+	border-color: palette(highlight);
+}
+
+ads--CDockWidgetTab[focused="true"] > #tabCloseButton {
+	qproperty-icon: url(:/ads/images/close-button-focused.svg)
+}
+
+ads--CDockWidgetTab[focused="true"]>#tabCloseButton:hover {
+	background: rgba(255, 255, 255, 48);
+}
+
+ads--CDockWidgetTab[focused="true"]>#tabCloseButton:pressed {
+	background: rgba(255, 255, 255, 92);
+}
+
+ads--CDockWidgetTab[focused="true"] QLabel {
+	color: palette(light);
+}
+
+
+/*****************************************************************************
+ * CDockWidget
+ *****************************************************************************/
+ads--CDockWidget {
+	background: palette(light);
+	border: 1px solid rgb(204, 204, 204);
+	border-top: none;
+}
+
+
+
+/*****************************************************************************
+ *
+ * Styling of auto hide functionality
+ *
+ *****************************************************************************/
+ 
+ 
+/*****************************************************************************
+ * CAutoHideTab
+ *****************************************************************************/
+ads--CAutoHideTab {
+	qproperty-iconSize: 16px 16px;/* this is optional in case you would like to change icon size*/
+	background: none;
+	border: none;
+	padding-left: 2px;
+	padding-right: 0px;
+	text-align: center;
+	min-height: 20px;
+	padding-bottom: 2px;
+}
+
+
+ads--CAutoHideTab:hover
+{
+	color: palette(highlight);
+}
+
+
+ads--CAutoHideTab[iconOnly="false"][sideBarLocation="0"],
+ads--CAutoHideTab[iconOnly="false"][sideBarLocation="2"]  {
+	border-top: 6px solid rgba(0, 0, 0, 48);
+}
+
+
+ads--CAutoHideTab[iconOnly="false"][sideBarLocation="1"],
+ads--CAutoHideTab[iconOnly="false"][sideBarLocation="3"] {
+	border-bottom: 6px solid rgba(0, 0, 0, 48);
+}
+
+
+
+ads--CAutoHideTab:hover[iconOnly="false"][sideBarLocation="0"],
+ads--CAutoHideTab:hover[iconOnly="false"][sideBarLocation="2"],
+ads--CAutoHideTab[iconOnly="false"][sideBarLocation="0"][activeTab="true"],
+ads--CAutoHideTab[iconOnly="false"][sideBarLocation="2"][activeTab="true"]  {
+	border-top: 6px solid palette(highlight);
+}
+
+
+ads--CAutoHideTab:hover[iconOnly="false"][sideBarLocation="1"],
+ads--CAutoHideTab:hover[iconOnly="false"][sideBarLocation="3"],
+ads--CAutoHideTab[iconOnly="false"][sideBarLocation="1"][activeTab="true"],
+ads--CAutoHideTab[iconOnly="false"][sideBarLocation="3"][activeTab="true"] {
+	border-bottom: 6px solid palette(highlight);
+}
+
+
+/**
+ * Auto hide tabs with icon only
+ */
+ads--CAutoHideTab[iconOnly="true"][sideBarLocation="0"] {
+	border-top: 6px solid rgba(0, 0, 0, 48);
+}
+
+ads--CAutoHideTab[iconOnly="true"][sideBarLocation="1"] {
+	border-left: 6px solid rgba(0, 0, 0, 48);
+}
+
+ads--CAutoHideTab[iconOnly="true"][sideBarLocation="2"] {
+	border-right: 6px solid rgba(0, 0, 0, 48);
+}
+
+ads--CAutoHideTab[iconOnly="true"][sideBarLocation="3"] {
+	border-bottom: 6px solid rgba(0, 0, 0, 48);
+}
+
+
+/**
+ * Auto hide tabs with icon only hover
+ */
+ads--CAutoHideTab:hover[iconOnly="true"][sideBarLocation="0"],
+ads--CAutoHideTab[iconOnly="true"][sideBarLocation="0"][activeTab="true"] {
+	border-top: 6px solid palette(highlight);
+}
+
+ads--CAutoHideTab:hover[iconOnly="true"][sideBarLocation="1"],
+ads--CAutoHideTab[iconOnly="true"][sideBarLocation="1"][activeTab="true"] {
+	border-left: 6px solid palette(highlight);
+}
+
+ads--CAutoHideTab:hover[iconOnly="true"][sideBarLocation="2"],
+ads--CAutoHideTab[iconOnly="true"][sideBarLocation="2"][activeTab="true"] {
+	border-right: 6px solid palette(highlight);
+}
+
+ads--CAutoHideTab:hover[iconOnly="true"][sideBarLocation="3"],
+ads--CAutoHideTab[iconOnly="true"][sideBarLocation="3"][activeTab="true"] {
+	border-bottom: 6px solid palette(highlight);
+}
+
+
+
+/*****************************************************************************
+ * CAutoHideSideBar
+ *****************************************************************************/
+ads--CAutoHideSideBar{
+	background: palette(window);
+	border: none;
+	qproperty-spacing: 12;
+}
+
+#sideTabsContainerWidget {
+	background: transparent;
+}
+
+
+ads--CAutoHideSideBar[sideBarLocation="0"] {
+	border-bottom: 1px solid palette(dark);
+}
+
+ads--CAutoHideSideBar[sideBarLocation="1"] {
+	border-right: 1px solid palette(dark);
+}
+
+ads--CAutoHideSideBar[sideBarLocation="2"] {
+	border-left: 1px solid palette(dark);
+}
+
+ads--CAutoHideSideBar[sideBarLocation="3"] {
+	border-top: 1px solid palette(dark);
+}
+
+
+/*****************************************************************************
+ * CAutoHideDockContainer
+ *****************************************************************************/
+ads--CAutoHideDockContainer {
+	background: palette(window);
+}
+
+
+ads--CAutoHideDockContainer ads--CDockAreaTitleBar {
+	background: palette(highlight);
+	padding: 0px;
+	border: none;
+}
+
+
+/*
+ * This is required because the ads--CDockAreaWidget[focused="true"] will 
+ * overwrite the ads--CAutoHideDockContainer ads--CDockAreaTitleBar rule
+ */
+ads--CAutoHideDockContainer ads--CDockAreaWidget[focused="true"] ads--CDockAreaTitleBar {
+	background: palette(highlight);
+	padding: 0px;
+	border: none;
+}
+
+
+#autoHideTitleLabel {
+	padding-left: 4px;
+	color: palette(light);
+}
+
+
+/*****************************************************************************
+ * CAutoHideDockContainer titlebar buttons
+ *****************************************************************************/
+#dockAreaAutoHideButton {
+	qproperty-icon: url(:/ads/images/vs-pin-button.svg);
+	qproperty-iconSize: 16px;
+}
+
+ads--CAutoHideDockContainer #dockAreaAutoHideButton {
+	qproperty-icon: url(:/ads/images/vs-pin-button-pinned-focused.svg);
+	qproperty-iconSize: 16px;
+}
+
+
+ads--CAutoHideDockContainer #dockAreaCloseButton{
+	qproperty-icon: url(:/ads/images/close-button-focused.svg)
+}
+
+
+ads--CAutoHideDockContainer ads--CTitleBarButton:hover {
+	background: rgba(255, 255, 255, 48);
+}
+
+ads--CAutoHideDockContainer ads--CTitleBarButton:pressed {
+	background: rgba(255, 255, 255, 96);
+}
+
+/*****************************************************************************
+ * CAutoHideDockContainer Titlebar and Buttons
+ *****************************************************************************/
+
+
+/*****************************************************************************
+ * CResizeHandle
+ *****************************************************************************/
+ads--CResizeHandle {
+	background: palette(window);
+}
+
+
+ads--CAutoHideDockContainer[sideBarLocation="0"] ads--CResizeHandle {
+	border-top: 1px solid palette(dark);
+}
+
+ads--CAutoHideDockContainer[sideBarLocation="1"] ads--CResizeHandle {
+	border-left: 1px solid palette(dark);
+}
+
+ads--CAutoHideDockContainer[sideBarLocation="2"] ads--CResizeHandle {
+	border-right: 1px solid palette(dark);
+}
+
+ads--CAutoHideDockContainer[sideBarLocation="3"] ads--CResizeHandle {
+	border-top: 1px solid palette(dark);
+}

doc/ads_icon.svg

@@ -1,123 +1,77 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <svg
-   xmlns:dc="http://purl.org/dc/elements/1.1/"
-   xmlns:cc="http://creativecommons.org/ns#"
-   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
-   xmlns:svg="http://www.w3.org/2000/svg"
-   xmlns="http://www.w3.org/2000/svg"
-   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
-   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
    version="1.1"
-   viewBox="0,0,1024,1024"
-   id="svg1145"
+   viewBox="0 0 1023.99 1023.99"
+   id="svg26"
    sodipodi:docname="ads_icon.svg"
-   inkscape:version="0.92.4 (5da689c313, 2019-01-14)"
-   inkscape:export-filename="C:\CodingXP\cetoni_projects\QtAdvancedDockingSystem\doc\ads_icon_256.png"
-   inkscape:export-xdpi="24"
-   inkscape:export-ydpi="24">
-  <metadata
-     id="metadata1151">
-    <rdf:RDF>
-      <cc:Work
-         rdf:about="">
-        <dc:format>image/svg+xml</dc:format>
-        <dc:type
-           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
-        <dc:title />
-      </cc:Work>
-    </rdf:RDF>
-  </metadata>
+   inkscape:version="1.1 (c68e22c387, 2021-05-23)"
+   width="1023.99"
+   height="1023.99"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
   <defs
-     id="defs1149" />
+     id="defs30" />
   <sodipodi:namedview
+     id="namedview28"
      pagecolor="#ffffff"
      bordercolor="#666666"
-     borderopacity="1"
-     objecttolerance="10"
-     gridtolerance="10"
-     guidetolerance="10"
-     inkscape:pageopacity="0"
+     borderopacity="1.0"
      inkscape:pageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     showgrid="false"
+     showguides="true"
+     inkscape:guide-bbox="true"
+     inkscape:zoom="0.12999302"
+     inkscape:cx="3277.099"
+     inkscape:cy="-257.70614"
      inkscape:window-width="1920"
      inkscape:window-height="1017"
-     id="namedview1147"
-     showgrid="false"
-     inkscape:zoom="0.32593202"
-     inkscape:cx="256.13402"
-     inkscape:cy="235.82602"
      inkscape:window-x="1912"
      inkscape:window-y="-8"
      inkscape:window-maximized="1"
-     inkscape:current-layer="svg1145" />
+     inkscape:current-layer="svg26"
+     fit-margin-top="0"
+     fit-margin-left="0"
+     fit-margin-right="0"
+     fit-margin-bottom="0" />
   <desc
-     id="desc1129">window_size icon - Licensed under Iconfu Standard License v1.0 (https://www.iconfu.com/iconfu_standard_license) - Incors GmbH</desc>
-  <path
-     id="path1797-1"
-     visibility="hidden"
-     d="M 71.53142,291.89723 H 950.1828 l 0.6743,0.6742 v 586.08 l -0.6743,0.6743 H 71.53142 l -0.6743,-0.6743 v -586.08 z"
-     inkscape:connector-curvature="0"
-     style="visibility:hidden;mix-blend-mode:normal;fill:#ffffff;fill-rule:nonzero;stroke-width:0.99999988;fill-opacity:1" />
-  <rect
-     transform="rotate(-90)"
-     y="412.13489"
-     x="-911.34436"
-     height="560.90375"
-     width="327.70862"
-     id="rect1739-8"
-     style="opacity:1;fill:#ffd292;fill-opacity:1;stroke:none;stroke-width:37.79526901;stroke-linecap:round;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1;paint-order:fill markers stroke" />
-  <path
-     id="path1799"
-     d="M 988.40121,578.11175 V 651.2546 H 409.96541 V 578.11175 Z"
-     inkscape:connector-curvature="0"
-     style="mix-blend-mode:normal;fill:#546e7a;fill-rule:nonzero;stroke-width:0.99999988" />
-  <rect
-     style="opacity:1;fill:#b3c3cb;fill-opacity:1;stroke:none;stroke-width:37.79526901;stroke-linecap:round;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1;paint-order:fill markers stroke"
-     id="rect1739-6-1"
-     width="655.41724"
-     height="338.99207"
-     x="-914.85529"
-     y="38.243896"
-     transform="rotate(-90)" />
-  <path
-     id="path1801-7"
-     d="m 73.1429,73.14287 h 877.7142 c 40.2857,0 73.1429,32.86857 73.1429,73.14285 V 914.2857 c 0,20.12571 -16.4458,36.57142 -36.5715,36.57142 H 36.5714 C 16.4343,950.85712 0,934.42284 0,914.2857 V 146.28572 C 0,106.00001 32.8571,73.14287 73.1429,73.14287 Z m 0,219.42856 V 877.71427 H 950.8571 V 292.57143 Z"
-     inkscape:connector-curvature="0"
-     style="mix-blend-mode:normal;fill:#546e7a;fill-rule:nonzero;stroke-width:0.99999988" />
-  <path
-     id="path1799-6"
-     d="M 359.8801,276.79402 H 433.023 V 886.78767 H 359.8801 Z"
-     inkscape:connector-curvature="0"
-     style="mix-blend-mode:normal;fill:#546e7a;fill-rule:nonzero;stroke-width:0.99999988" />
-  <circle
-     r="36.81749"
-     cy="169.78555"
-     cx="920.66248"
-     id="path1917-42"
-     style="opacity:1;fill:#ffa726;fill-opacity:1;stroke:none;stroke-width:63.79999924;stroke-linecap:square;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1;paint-order:stroke fill markers" />
-  <circle
-     r="36.81749"
-     cy="169.78555"
-     cx="817.22302"
-     id="path1917-4-6"
-     style="opacity:1;fill:#ffffff;fill-opacity:1;stroke:none;stroke-width:63.79999924;stroke-linecap:square;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1;paint-order:stroke fill markers" />
-  <path
-     id="path1799-8"
-     d="m 615.67076,292.13464 v 73.14285 H 433.023 v -73.14285 z"
-     inkscape:connector-curvature="0"
-     style="mix-blend-mode:normal;fill:#95abb6;fill-rule:nonzero;stroke-width:0.99999994;fill-opacity:1" />
-  <path
-     id="path1799-8-1"
-     d="m 798.31852,292.13464 v 73.14285 H 615.67076 v -73.14285 z"
-     inkscape:connector-curvature="0"
-     style="mix-blend-mode:normal;fill:#c7d4d9;fill-rule:nonzero;stroke-width:0.99999994;fill-opacity:1" />
-  <path
-     id="path1799-8-7"
-     d="m 255.79066,292.57143 v 73.14285 H 73.1429 v -73.14285 z"
-     inkscape:connector-curvature="0"
-     style="mix-blend-mode:normal;fill:#dfe5e9;fill-opacity:1;fill-rule:nonzero;stroke-width:0.99999994" />
-  <path
-     id="path1799-8-7-6"
-     d="m 616.34083,651.15739 v 73.14285 H 433.69307 v -73.14285 z"
-     inkscape:connector-curvature="0"
-     style="mix-blend-mode:normal;fill:#ffba56;fill-opacity:1;fill-rule:nonzero;stroke-width:0.99999994" />
+     id="desc2">electric_iron icon - Licensed under Iconfu Standard License v1.0 (https://www.iconfu.com/iconfu_standard_license) - Incors GmbH</desc>
+  <text
+     xml:space="preserve"
+     style="font-style:normal;font-weight:normal;font-size:40px;line-height:1.25;font-family:sans-serif;fill:#000000;fill-opacity:1;stroke:none"
+     x="1251.1022"
+     y="1305.4956"
+     id="text9788"><tspan
+       sodipodi:role="line"
+       id="tspan9786"
+       x="1251.1022"
+       y="1305.4956" /></text>
+  <g
+     id="g94691"
+     transform="translate(581.23034,1750.5233)">
+    <path
+       d="m 191.63966,-726.53328 h -521.75 c -138.69,0 -251.12,-112.43001 -251.12,-251.12 v -521.75002 c 0,-138.69 112.43,-251.12 251.12,-251.12 h 521.75 c 138.69,0 251.12,112.43 251.12,251.12 v 521.75002 c 0,138.68999 -112.43,251.12 -251.12,251.12 z"
+       fill="#707070"
+       id="path4-5"
+       style="mix-blend-mode:normal;fill:#e0e0e0;fill-opacity:1;fill-rule:nonzero" />
+    <path
+       id="path927"
+       style="mix-blend-mode:normal;fill:#009ddd;fill-opacity:1;fill-rule:nonzero"
+       d="m -175.90039,-1515.8633 v 256 h 469.3301 v -256 z" />
+    <path
+       id="path16513"
+       style="mix-blend-mode:normal;fill:#ff9833;fill-opacity:1;fill-rule:nonzero"
+       d="m 80.099609,-1217.1934 v 256.00004 H 293.42969 v -256.00004 z" />
+    <path
+       id="path16513-5"
+       style="mix-blend-mode:normal;fill:#accb01;fill-opacity:1;fill-rule:nonzero"
+       d="m -175.90039,-1217.1933 v 256 H 37.42969 v -256 z" />
+    <path
+       id="path24788"
+       style="mix-blend-mode:normal;fill:#0083c3;fill-opacity:1;fill-rule:nonzero"
+       d="m -431.90039,-1515.8633 v 554.66994 h 213.33008 v -554.66994 z" />
+  </g>
 </svg>

doc/ads_logo.svg

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg width="1032" height="151.81" version="1.1" viewBox="0 0 1032 151.81" xmlns="http://www.w3.org/2000/svg">
+ <desc>electric_iron icon - Licensed under Iconfu Standard License v1.0 (https://www.iconfu.com/iconfu_standard_license) - Incors GmbH</desc>
+ <text x="1251.1022" y="1305.4956" fill="#000000" font-family="sans-serif" font-size="40px" style="line-height:1.25" xml:space="preserve"><tspan x="1251.1022" y="1305.4956"/></text>
+ <g transform="scale(.14825)" stroke-width="6.7454">
+  <g fill="#8f918f" aria-label="Qt Advanced Docking">
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+</svg>

doc/ads_qt_marketplace_description.md

@@ -12,20 +12,6 @@ styles as much as possible.
 
 ## Features
 
-### Overview
-
-- [Features](#features)
-  - [Overview](#overview)
-  - [Docking everywhere - no central widget](#docking-everywhere---no-central-widget)
-  - [Docking inside floating windows](#docking-inside-floating-windows)
-  - [Grouped dragging](#grouped-dragging)
-  - [Perspectives for fast switching of the complete main window layout](#perspectives-for-fast-switching-of-the-complete-main-window-layout)
-  - [Opaque and non-opaque splitter resizing](#opaque-and-non-opaque-splitter-resizing)
-  - [Opaque and non-opaque undocking](#opaque-and-non-opaque-undocking)
-  - [Tab-menu for easy handling of many tabbed dock widgets](#tab-menu-for-easy-handling-of-many-tabbed-dock-widgets)
-  - [Many different ways to detach dock widgets](#many-different-ways-to-detach-dock-widgets)
-  - [Supports deletion of dynamically created dock widgets](#supports-deletion-of-dynamically-created-dock-widgets)
-
 ### Docking everywhere - no central widget
 
 There is no central widget like in the Qt docking system. You can dock on every
@@ -106,3 +92,10 @@ You can detach dock widgets and also dock areas in the following ways:
 ### Supports deletion of dynamically created dock widgets
 
 Normally clicking the close button of a dock widget will just hide the widget and the user can show it again using the toggleView() action of the dock widget. This is meant for user interfaces with a static amount of widgets. But the advanced docking system also supports dynamic dock widgets that will get deleted on close. If you set the dock widget flag `DockWidgetDeleteOnClose` for a certain dock widget, then it will be deleted as soon as you close this dock widget. This enables the implementation of user interfaces with dynamically created editors, like in word processing applications or source code development tools.
+
+### Python PyQt5 Bindings
+
+![Python Logo](https://raw.githubusercontent.com/githubuser0xFFFF/Qt-Advanced-Docking-System/master/doc/python_logo.png)
+
+The Advanced Docking System comes with a complete Python integration based on
+PyQt5 bindings. The package is available via [conda-forge](https://github.com/conda-forge/pyqtads-feedstock).

doc/ads_qt_marketplace_manifest.json

@@ -4,21 +4,21 @@
     "extensionType": [
         "library"
     ],
-    "version": "3.0.0",
+    "version": "3.8.2",
     "vendor": {
         "name": "githubuser0xFFFF",
         "url": "https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System"
     },
     "contact": "https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System/issues",
-    "icon": "https://raw.githubusercontent.com/githubuser0xFFFF/Qt-Advanced-Docking-System/master/doc/ads_icon_512.png",
+    "icon": "https://raw.githubusercontent.com/githubuser0xFFFF/Qt-Advanced-Docking-System/master/doc/ads_icon.svg",
     "licenses": [
-      { "licenseType": "LGPLv2.1",
+      { "licenseType": "LGPL-2.1-only",
         "licenseUrl": "https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html" }
     ],
     "created": "2017-03-30",
-    "lastUpdate": "2020-01-16",
+    "lastUpdate": "2022-03-02",
     "platforms": [
-        "Windows 7-10", "Kubuntu 18.04", "Kubuntu 19.10", "Ubuntu 19.10"
+        "Windows 7-11", "Kubuntu 18.04", "Kubuntu 19.10", "Ubuntu 19.10", "Ubuntu 20.04"
     ],
     "qtVersions": [
         "5.5.1 or newer"

doc/user-guide.md

@@ -27,6 +27,29 @@
   - [`EqualSplitOnInsertion`](#equalsplitoninsertion)
   - [`FloatingContainerForceNativeTitleBar` (Linux only)](#floatingcontainerforcenativetitlebar-linux-only)
   - [`FloatingContainerForceQWidgetTitleBar` (Linux only)](#floatingcontainerforceqwidgettitlebar-linux-only)
+  - [`MiddleMouseButtonClosesTab`](#middlemousebuttonclosestab)
+- [Auto-Hide Configuration Flags](#auto-hide-configuration-flags)
+  - [Auto Hide Dock Widgets](#auto-hide-dock-widgets)
+  - [Pinning Auto-Hide Widgets to a certain border](#pinning-auto-hide-widgets-to-a-certain-border)
+  - [Show / Hide Auto-Hide Widgets via Mouse Over](#show--hide-auto-hide-widgets-via-mouse-over)
+  - [Adding Auto Hide Widgets](#adding-auto-hide-widgets)
+  - [Setting Auto-Hide Flags](#setting-auto-hide-flags)
+  - [`AutoHideFeatureEnabled`](#autohidefeatureenabled)
+  - [`DockAreaHasAutoHideButton`](#dockareahasautohidebutton)
+  - [`AutoHideButtonTogglesArea`](#autohidebuttontogglesarea)
+  - [`AutoHideButtonCheckable`](#autohidebuttoncheckable)
+  - [`AutoHideSideBarsIconOnly`](#autohidesidebarsicononly)
+  - [`AutoHideShowOnMouseOver`](#autohideshowonmouseover)
+- [DockWidget Feature Flags](#dockwidget-feature-flags)
+  - [`DockWidgetClosable`](#dockwidgetclosable)
+  - [`DockWidgetMovable`](#dockwidgetmovable)
+  - [`DockWidgetFloatable`](#dockwidgetfloatable)
+  - [`DockWidgetDeleteOnClose`](#dockwidgetdeleteonclose)
+  - [`CustomCloseHandling`](#customclosehandling)
+  - [`DockWidgetFocusable`](#dockwidgetfocusable)
+  - [`DockWidgetForceCloseWithArea`](#dockwidgetforceclosewitharea)
+  - [`NoTab`](#notab)
+  - [`DeleteContentOnClose`](#deletecontentonclose)
 - [Central Widget](#central-widget)
 - [Empty Dock Area](#empty-dock-area)
 - [Custom Close Handling](#custom-close-handling)
@@ -36,14 +59,15 @@
 ## Configuration Flags
 
 The Advanced Docking System has a number of global configuration options to
-configure the design and the functionality of the docking system. Eachs
+configure the design and the functionality of the docking system. Each
 configuration will be explained in detail in the following sections.
 
 ### Setting Configuration Flags
 
-You should set the configuration flags before you create the dock manager
-instance. That means, setting the configurations flags is the first thing
-you do, if you use the library.
+You must set the configuration flags before creating the dock manager
+instance otherwise the manager will not be created correctly and will
+crash upon being created. That means, setting the configurations flags
+is the first thing you must do, if you use the library.
 
 ```c++
 CDockManager::setConfigFlags(CDockManager::DefaultOpaqueConfig);
@@ -55,9 +79,9 @@ d->DockManager = new CDockManager(this);
 If you set the configurations flags, you can set individual flags using the
 function `CDockManager::setConfigFlag` or you can set all flags using
 the function `CDockManager::setConfigFlags`. Instead of settings all
-flags individualy, it is better to pick a predefined set of configuration
+flags individually, it is better to pick a predefined set of configuration
 flags and then modify individual flags. The following predefined
-configurations are avilable
+configurations are available
 
 - `DefaultNonOpaqueConfig` - uses non opaque splitter resizing and non opaque docking
 - `DefaultOpaqueConfig` - uses opaque splitter resizing and opaque docking
@@ -148,11 +172,11 @@ constant, that means, if enabled, the tabs need more space.
 
 ### `OpaqueUndocking`
 
-If this flag is set, opaque undocking is active. That means, as soon as you drag a dock widget or a dock area with a number of dock widgets it will be undocked and moved into a floating widget and then the floating widget will be dragged around. That means undocking will take place immediatelly. You can compare this with opaque splitter resizing.
+If this flag is set, opaque undocking is active. That means, as soon as you drag a dock widget or a dock area with a number of dock widgets it will be undocked and moved into a floating widget and then the floating widget will be dragged around. That means undocking will take place immediately. You can compare this with opaque splitter resizing.
 
 ![OpaqueUndocking true](opaque_undocking.gif)
 
-If you would like to test opaque undocking, you should set the pedefined config
+If you would like to test opaque undocking, you should set the predefined config
 flags `CDockManager::DefaultOpaqueConfig`.
 
 ```c++
@@ -275,7 +299,8 @@ current dock widget.
 
 ![FloatingContainerHasWidgetTitle true](cfg_flag_FloatingContainerHasWidgetTitle_true.png)
 
-otherwise it displays application name as window title.
+otherwise it displays the title set with `CDockManager::setFloatingContainersTitle` or
+application name as window title.
 
 ![FloatingContainerHasWidgetTitle false](cfg_flag_FloatingContainerHasWidgetTitle_false.png)
 
@@ -311,7 +336,7 @@ still has a titlebar to drag it out of the main window.
 
 If this is enabled, the docking system is able to highlight the tab and the
 components of a dock area with a different style (i.e. a different color).
-This option is disabled by default and needs to be enabled explicitely
+This option is disabled by default and needs to be enabled explicitly
 because it adds some overhead. The dock manager needs to react on focus
 changes and dock widget dragging to highlight the right dock widget. You should
 enable it only, if you really need it for your application.
@@ -331,7 +356,7 @@ be set to true and you can use this property to style the focused dock
 widget differently. The picture above uses the following styling:
 
 ```css
-/* Color the tab with the nhighlight color */
+/* Color the tab with the highlight color */
 ads--CDockWidgetTab[focused="true"]
 {
     background: palette(highlight);
@@ -464,6 +489,192 @@ If you would like to overwrite autodetection, then you can activate this flag
 to force QWidget based title bars. You can overwrite autodetection and this
 flag, if you set the environment variable `ADS_UseNativeTitle` to 0 or 1.
 
+### `MiddleMouseButtonClosesTab`
+
+If the flag is set, the user can use the mouse middle button to close the tab
+under the mouse. So you do not need to exactly hit the tab close button to
+close tab. Just click with the middle mouse button on a tab like this is
+possible in various web browsers.
+
+![MiddleMouseButtonClosesTab true](cfg_flag_MiddleMouseButtonClosesTab.gif)
+
+## Auto-Hide Configuration Flags
+
+### Auto Hide Dock Widgets
+
+The Advanced Docking System supports "Auto-Hide" functionality for **all**
+dock containers. The "Auto Hide" feature allows to display more information
+using less screen space by hiding or showing windows pinned to one of the 
+four dock container borders.
+
+Enabling this feature adds a button with a pin icon to each dock area.
+
+![DockAreaHasAutoHideButton true](cfg_flag_DockAreaHasAutoHideButton.png)
+
+By clicking this button, the current dock widget (or the complete area - depending on the
+configuration flags) will be pinned to a certain border. The border is choosen
+depending on the location of the dock area. If you click the pin button while
+holding down the **Ctrl** key, the whole dock area will be pinned to a certain
+border.
+
+### Pinning Auto-Hide Widgets to a certain border
+
+If you would like to pin a dock widget or a dock area to a certain border,
+then you can right-click into the dock widget tab or into the dock area title bar
+to show the context menu. Then you can select the location via the **Pin to** menu:
+
+![Pin to](AutoHide_PinTo.png)
+
+### Show / Hide Auto-Hide Widgets via Mouse Over
+
+Normally Auto-Hide widgets are shown by clicking the Auto-Hide tab and hidden by
+clicking the Auto-Hide tab again or by clicking into any other dock widget in
+the same container. If the Auto-Hide config flag `AutoHideShowOnMouseOver` is set,
+the Auto-Hide widget is shown, if the user hovers over the Auto-Hide tab and is
+collapsed if the mouse cursor leaves the Auto-Hide widget. Showing and hiding
+by mouse click still works if this feature is enabled.
+
+### Adding Auto Hide Widgets
+
+Adding an auto hide widget is similar to adding a dock widget, simply call
+`dockManager->addAutoHideDockWidget()`.
+
+```c++
+CDockManager::setAutoHideConfigFlags(CDockManager::DefaultAutoHideConfig);
+d->DockManager = new CDockManager(this);
+CDockWidget* TableDockWidget = new CDockWidget("Table 1");
+DockManager->addAutoHideDockWidget(SideBarLeft, TableDockWidget);
+```
+
+See `autohide` example or the demo application to learn how it works.
+
+### Setting Auto-Hide Flags
+
+The Advanced Docking System has a number of global configuration flags to
+configure the Auto-Hide functionality. You should set the Auto-Hide flags before
+creating the dock manager instance. That means, you should set the Auto-Hide
+flags after setting the configuration flags.
+
+```c++
+CDockManager::setConfigFlag(CDockManager::FocusHighlighting, true);
+CDockManager::setAutoHideConfigFlags(CDockManager::DefaultAutoHideConfig);
+CDockManager::setAutoHideConfigFlag(CDockManager::AutoHideShowOnMouseOver, true);
+...
+d->DockManager = new CDockManager(this);
+```
+
+If you set the Auto-Hide flags, you can set individual flags using the
+function `CDockManager::setAutoHideConfigFlag` or you can set all flags using
+the function `CDockManager::setAutoHideConfigFlags`. Instead of settings all
+flags individually, it is better to pick a predefined set of configuration
+flags and then modify individual flags. The following predefined
+configurations are available
+
+- `DefaultAutoHideConfig` - default auto hide config
+
+Pick one of those predefined configurations and then modify the following
+configurations flags to adjust the docking system to your needs.
+
+### `AutoHideFeatureEnabled`
+
+Enables / disables the Auto-Hide functionality. Only if this flag is enabled,
+the other Auto-Hide flags will be evaluated.
+
+### `DockAreaHasAutoHideButton`
+
+If this flag is set (default), then each dock area has a pin button in the title 
+bar to toggle Auto-Hide state.
+
+![DockAreaHasAutoHideButton true](cfg_flag_DockAreaHasAutoHideButton.png)
+
+### `AutoHideButtonTogglesArea`
+
+If set, the the pin button in the dock area title bar toggles the complete area.
+If not set (default), then the pin button toggles the current active tab / dock
+widget and pressing the **Ctrl** key while clicking the pin button toggles the
+complete ara.
+
+### `AutoHideButtonCheckable`
+
+Normally the pin button in the dock area title bar is not checkable. If this
+flag is set, then the button is checkable. That means, if button is checked,
+the dock widget is pinned.
+
+### `AutoHideSideBarsIconOnly`
+
+Normally the Auto-Hide tabs show the icon and title of the dock widget:
+
+![AutoHideSideBarsIconOnly false](cfg_flag_AutoHideSideBarsIconOnly_false.png)
+
+You can set this flag, if you would like to have only icons in the Auto-Hide
+tabs instead of icon and dock widget title. If this is set, the Auto-Hide tab
+needs less space. The tooltip of each tab still shows the dock widget title.
+
+![AutoHideSideBarsIconOnly true](cfg_flag_AutoHideSideBarsIconOnly_true.png)
+
+### `AutoHideShowOnMouseOver`
+
+Normally Auto-Hide widgets are shown by clicking the Auto-Hide tab and
+hidden by clicking the Auto-Hide tab again or by clicking into any other
+dock widget in the same container. If this flag is set, the Auto-Hide widget
+is shown, if the user hovers over the Auto-Hide tab or if the users moves the
+mouse outside of the Auto-Hide widget. Showing and hiding my mouse click still
+works if this feature is enabled.
+
+## DockWidget Feature Flags
+
+### `DockWidgetClosable`
+
+If set, the dock widget will have a close button.
+
+### `DockWidgetMovable`
+
+If a dock widget is movable, then it and can be moved to a new position in the
+current dock container. Disable this flag to prevent moving of a dock widget
+via mouse. If the `OpaqueUndocking` configuration flag is set, then dock widgets
+are immediately undocked into floating widgets. That means, moving is only
+possible in this case, if the dock widget is also floatable (feature flag
+`DockWidgetFloatable` is set).
+
+### `DockWidgetFloatable`
+
+If set, a dock widget can be dragged into a floating window.
+
+### `DockWidgetDeleteOnClose`
+
+Deletes the dock widget and its content when it is closed.
+
+### `CustomCloseHandling`
+
+Clicking the close button will not close the dock widget but emits the
+`closeRequested()` signal instead. This allows the application to implement
+a custom close handling.
+
+### `DockWidgetFocusable`
+
+If this is enabled, a dock widget can get focus highlighting.
+
+### `DockWidgetForceCloseWithArea`
+
+A dock widget will be closed when the dock area hosting it is closed. If the
+`DockWidgetDeleteOnClose` feature is enabled for a dock widget, then it will
+be deleted, if the user clicks the close button of this dock widget. If the
+user clicks the close button of the dock area that contains this widget,
+then only the visibility of the dock widget is toggled. If this feature flag
+is set, the closing the dock area also closes the dock widget. That means, if
+the dock widget feature `DockWidgetDeleteOnClose` is set for the dock widgets
+in a dock area, then all dock widgets will be deleted if the dock area is closed.
+
+### `NoTab`
+
+A dock widget tab will never be shown if this flag is set.
+
+### `DeleteContentOnClose`
+
+Deletes only the contained widget on close, keeping the dock widget intact and
+in place. Attempts to rebuild the contents widget on show if there is a widget
+factory set. See [issue #365](https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System/pull/365) for more details.
+
 ## Central Widget
 
 The Advanced Docking System has been developed to overcome the limitations of
@@ -550,3 +761,4 @@ just call the function for settings the stylesheet with an empty string.
 ```c++
 DockManager->setStyleSheet("");
 ```
+

examples/CMakeLists.txt

@@ -1,8 +1,10 @@
 cmake_minimum_required(VERSION 3.5)
 project(QtADSExamples LANGUAGES CXX VERSION ${VERSION_SHORT})
 add_subdirectory(simple)
+add_subdirectory(hideshow)
 add_subdirectory(sidebar)
 add_subdirectory(deleteonclose)
 add_subdirectory(centralwidget)
+add_subdirectory(autohide)
 add_subdirectory(emptydockarea)
 add_subdirectory(dockindock)

examples/autohide/CMakeLists.txt

@@ -0,0 +1,28 @@
+cmake_minimum_required(VERSION 3.5)
+project(ads_example_autohide VERSION ${VERSION_SHORT}) 
+find_package(QT NAMES Qt6 Qt5 COMPONENTS Core REQUIRED)
+find_package(Qt${QT_VERSION_MAJOR} 5.5 COMPONENTS Core Gui Widgets REQUIRED)
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+add_executable(AutoHideExample WIN32 
+    main.cpp
+    mainwindow.cpp
+    mainwindow.ui
+)
+target_include_directories(AutoHideExample PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/../../src")
+target_link_libraries(AutoHideExample PRIVATE qtadvanceddocking)
+target_link_libraries(AutoHideExample PUBLIC Qt${QT_VERSION_MAJOR}::Core 
+                                                  Qt${QT_VERSION_MAJOR}::Gui 
+                                                  Qt${QT_VERSION_MAJOR}::Widgets)
+set_target_properties(AutoHideExample PROPERTIES 
+    AUTOMOC ON
+    AUTORCC ON
+    AUTOUIC ON
+    CXX_STANDARD 14
+    CXX_STANDARD_REQUIRED ON
+    CXX_EXTENSIONS OFF
+    VERSION ${VERSION_SHORT}
+    EXPORT_NAME "Qt Advanced Docking System Auto Hide Example"
+    ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/${ads_PlatformDir}/lib"
+    LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/${ads_PlatformDir}/lib"
+    RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/${ads_PlatformDir}/bin"
+)

examples/autohide/autohide.pro

@@ -0,0 +1,34 @@
+ADS_OUT_ROOT = $${OUT_PWD}/../..
+
+QT       += core gui widgets
+
+TARGET = AutoHideExample
+DESTDIR = $${ADS_OUT_ROOT}/lib
+TEMPLATE = app
+CONFIG += c++14
+CONFIG += debug_and_release
+adsBuildStatic {
+    DEFINES += ADS_STATIC
+}
+
+# The following define makes your compiler emit warnings if you use
+# any Qt feature that has been marked deprecated (the exact warnings
+# depend on your compiler). Please consult the documentation of the
+# deprecated API in order to know how to port your code away from it.
+DEFINES += QT_DEPRECATED_WARNINGS
+
+SOURCES += \
+    main.cpp \
+    mainwindow.cpp
+
+HEADERS += \
+    mainwindow.h
+    
+FORMS += \
+    mainwindow.ui
+
+LIBS += -L$${ADS_OUT_ROOT}/lib
+include(../../ads.pri)
+INCLUDEPATH += ../../src
+DEPENDPATH += ../../src
+

examples/autohide/main.cpp

@@ -0,0 +1,10 @@
+#include <mainwindow.h>
+#include <QApplication>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    CMainWindow w;
+    w.show();
+    return a.exec();
+}

examples/autohide/main.py

@@ -0,0 +1,106 @@
+import os
+import sys
+
+from PyQt5 import uic
+from PyQt5.QtCore import Qt, QTimer, QDir, QSignalBlocker
+from PyQt5.QtGui import QCloseEvent, QIcon
+from PyQt5.QtWidgets import (QApplication, QLabel, QCalendarWidget, QFrame, QTreeView,
+                             QTableWidget, QFileSystemModel, QPlainTextEdit, QToolBar,
+                             QWidgetAction, QComboBox, QAction, QSizePolicy, QInputDialog)
+
+from PyQtAds import QtAds
+
+UI_FILE = os.path.join(os.path.dirname(__file__), 'mainwindow.ui')
+MainWindowUI, MainWindowBase = uic.loadUiType(UI_FILE)
+    
+class MainWindow(MainWindowUI, MainWindowBase):
+
+    def __init__(self, parent=None):
+        super().__init__(parent)
+
+        self.setupUi(self)
+ 
+        QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.OpaqueSplitterResize, True)
+        QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.XmlCompressionEnabled, False)
+        QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.FocusHighlighting, True)
+        self.dock_manager = QtAds.CDockManager(self)
+        
+        # Set central widget
+        text_edit = QPlainTextEdit()
+        text_edit.setPlaceholderText("This is the central editor. Enter your text here.")
+        central_dock_widget = QtAds.CDockWidget("CentralWidget")
+        central_dock_widget.setWidget(text_edit)
+        central_dock_area = self.dock_manager.setCentralWidget(central_dock_widget)
+        central_dock_area.setAllowedAreas(QtAds.DockWidgetArea.OuterDockAreas)
+        
+        # create other dock widgets
+        table = QTableWidget()
+        table.setColumnCount(3)
+        table.setRowCount(10)
+        table_dock_widget = QtAds.CDockWidget("Table 1")
+        table_dock_widget.setWidget(table)
+        table_dock_widget.setMinimumSizeHintMode(QtAds.CDockWidget.MinimumSizeHintFromDockWidget)
+        table_dock_widget.resize(250, 150)
+        table_dock_widget.setMinimumSize(200, 150)
+        table_area = self.dock_manager.addDockWidget(QtAds.DockWidgetArea.LeftDockWidgetArea, table_dock_widget)
+        self.menuView.addAction(table_dock_widget.toggleViewAction())
+        
+        table = QTableWidget()
+        table.setColumnCount(5)
+        table.setRowCount(1020)
+        table_dock_widget = QtAds.CDockWidget("Table 2")
+        table_dock_widget.setWidget(table)
+        table_dock_widget.setMinimumSizeHintMode(QtAds.CDockWidget.MinimumSizeHintFromDockWidget)
+        table_dock_widget.resize(250, 150)
+        table_dock_widget.setMinimumSize(200, 150)
+        table_area = self.dock_manager.addDockWidget(QtAds.DockWidgetArea.BottomDockWidgetArea, table_dock_widget, table_area)
+        self.menuView.addAction(table_dock_widget.toggleViewAction())
+
+        properties_table = QTableWidget()
+        properties_table.setColumnCount(3)
+        properties_table.setRowCount(10)
+        properties_dock_widget = QtAds.CDockWidget("Properties")
+        properties_dock_widget.setWidget(properties_table)
+        properties_dock_widget.setMinimumSizeHintMode(QtAds.CDockWidget.MinimumSizeHintFromDockWidget)
+        properties_dock_widget.resize(250, 150)
+        properties_dock_widget.setMinimumSize(200, 150)
+        self.dock_manager.addDockWidget(QtAds.DockWidgetArea.RightDockWidgetArea, properties_dock_widget, central_dock_area)
+        self.menuView.addAction(properties_dock_widget.toggleViewAction())
+        
+        self.create_perspective_ui()
+        
+    def create_perspective_ui(self):
+        save_perspective_action = QAction("Create Perspective", self)
+        save_perspective_action.triggered.connect(self.save_perspective)
+        perspective_list_action = QWidgetAction(self)
+        self.perspective_combobox = QComboBox(self)
+        self.perspective_combobox.setSizeAdjustPolicy(QComboBox.AdjustToContents)
+        self.perspective_combobox.setSizePolicy(QSizePolicy.Preferred, QSizePolicy.Preferred)
+        self.perspective_combobox.activated[str].connect(self.dock_manager.openPerspective)
+        perspective_list_action.setDefaultWidget(self.perspective_combobox)
+        self.toolBar.addSeparator()
+        self.toolBar.addAction(perspective_list_action)
+        self.toolBar.addAction(save_perspective_action)
+        
+    def save_perspective(self):
+        perspective_name, ok = QInputDialog.getText(self, "Save Perspective", "Enter Unique name:")
+        if not ok or not perspective_name:
+            return
+        
+        self.dock_manager.addPerspective(perspective_name)
+        blocker = QSignalBlocker(self.perspective_combobox)
+        self.perspective_combobox.clear()
+        self.perspective_combobox.addItems(self.dock_manager.perspectiveNames())
+        self.perspective_combobox.setCurrentText(perspective_name)
+        
+    def closeEvent(self, event: QCloseEvent):
+        self.dock_manager.deleteLater()
+        super().closeEvent(event)
+
+
+if __name__ == '__main__':
+    app = QApplication(sys.argv)
+    
+    w = MainWindow()
+    w.show()
+    app.exec_()

examples/autohide/mainwindow.cpp

@@ -0,0 +1,126 @@
+#include "mainwindow.h"
+
+#include "ui_mainwindow.h"
+
+#include <QWidgetAction>
+#include <QFileSystemModel>
+#include <QTableWidget>
+#include <QHBoxLayout>
+#include <QInputDialog>
+#include <QFileDialog>
+#include <QSettings>
+#include <QPlainTextEdit>
+#include <QToolBar>
+
+#include "AutoHideDockContainer.h"
+#include "DockAreaWidget.h"
+#include "DockAreaTitleBar.h"
+
+using namespace ads;
+
+
+CMainWindow::CMainWindow(QWidget *parent)
+    : QMainWindow(parent)
+    , ui(new Ui::CMainWindow)
+{
+    ui->setupUi(this);
+    CDockManager::setConfigFlag(CDockManager::OpaqueSplitterResize, true);
+    CDockManager::setConfigFlag(CDockManager::XmlCompressionEnabled, false);
+    CDockManager::setConfigFlag(CDockManager::FocusHighlighting, true);
+    CDockManager::setAutoHideConfigFlags(CDockManager::DefaultAutoHideConfig);
+    DockManager = new CDockManager(this);
+
+    // Set central widget
+    QPlainTextEdit* w = new QPlainTextEdit();
+	w->setPlaceholderText("This is the central editor. Enter your text here.");
+    CDockWidget* CentralDockWidget = new CDockWidget("CentralWidget");
+    CentralDockWidget->setWidget(w);
+    auto* CentralDockArea = DockManager->setCentralWidget(CentralDockWidget);
+    CentralDockArea->setAllowedAreas(DockWidgetArea::OuterDockAreas);
+
+    // create other dock widgets
+    QTableWidget* table = new QTableWidget();
+    table->setColumnCount(3);
+    table->setRowCount(10);
+    CDockWidget* TableDockWidget = new CDockWidget("Table 1");
+    TableDockWidget->setWidget(table);
+    TableDockWidget->setMinimumSizeHintMode(CDockWidget::MinimumSizeHintFromDockWidget);
+    TableDockWidget->setMinimumSize(200,150);
+    const auto autoHideContainer = DockManager->addAutoHideDockWidget(SideBarLocation::SideBarLeft, TableDockWidget);
+    autoHideContainer->setSize(480);
+    ui->menuView->addAction(TableDockWidget->toggleViewAction());
+
+    table = new QTableWidget();
+    table->setColumnCount(5);
+    table->setRowCount(1020);
+    TableDockWidget = new CDockWidget("Table 2");
+    TableDockWidget->setWidget(table);
+    TableDockWidget->setMinimumSizeHintMode(CDockWidget::MinimumSizeHintFromDockWidget);
+    TableDockWidget->resize(250, 150);
+    TableDockWidget->setMinimumSize(200,150);
+    DockManager->addAutoHideDockWidget(SideBarLocation::SideBarLeft, TableDockWidget);
+    ui->menuView->addAction(TableDockWidget->toggleViewAction());
+
+    QTableWidget* propertiesTable = new QTableWidget();
+    propertiesTable->setColumnCount(3);
+    propertiesTable->setRowCount(10);
+    CDockWidget* PropertiesDockWidget = new CDockWidget("Properties");
+    PropertiesDockWidget->setWidget(propertiesTable);
+    PropertiesDockWidget->setMinimumSizeHintMode(CDockWidget::MinimumSizeHintFromDockWidget);
+    PropertiesDockWidget->resize(250, 150);
+    PropertiesDockWidget->setMinimumSize(200,150);
+    DockManager->addDockWidget(DockWidgetArea::RightDockWidgetArea, PropertiesDockWidget, CentralDockArea);
+    ui->menuView->addAction(PropertiesDockWidget->toggleViewAction());
+
+    createPerspectiveUi();
+}
+
+CMainWindow::~CMainWindow()
+{
+    delete ui;
+}
+
+
+void CMainWindow::createPerspectiveUi()
+{
+	SavePerspectiveAction = new QAction("Create Perspective", this);
+	connect(SavePerspectiveAction, SIGNAL(triggered()), SLOT(savePerspective()));
+	PerspectiveListAction = new QWidgetAction(this);
+	PerspectiveComboBox = new QComboBox(this);
+	PerspectiveComboBox->setSizeAdjustPolicy(QComboBox::AdjustToContents);
+	PerspectiveComboBox->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
+	connect(PerspectiveComboBox, SIGNAL(currentTextChanged(const QString&)),
+		DockManager, SLOT(openPerspective(const QString&)));
+	PerspectiveListAction->setDefaultWidget(PerspectiveComboBox);
+	ui->toolBar->addSeparator();
+	ui->toolBar->addAction(PerspectiveListAction);
+	ui->toolBar->addAction(SavePerspectiveAction);
+}
+
+
+void CMainWindow::savePerspective()
+{
+	QString PerspectiveName = QInputDialog::getText(this, "Save Perspective", "Enter unique name:");
+	if (PerspectiveName.isEmpty())
+	{
+		return;
+	}
+
+	DockManager->addPerspective(PerspectiveName);
+	QSignalBlocker Blocker(PerspectiveComboBox);
+	PerspectiveComboBox->clear();
+	PerspectiveComboBox->addItems(DockManager->perspectiveNames());
+	PerspectiveComboBox->setCurrentText(PerspectiveName);
+}
+
+
+//============================================================================
+void CMainWindow::closeEvent(QCloseEvent* event)
+{
+    // Delete dock manager here to delete all floating widgets. This ensures
+    // that all top level windows of the dock manager are properly closed
+    DockManager->deleteLater();
+	QMainWindow::closeEvent(event);
+}
+
+

examples/autohide/mainwindow.h

@@ -0,0 +1,43 @@
+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QMainWindow>
+#include <QComboBox>
+#include <QWidgetAction>
+
+#include "DockManager.h"
+#include "DockAreaWidget.h"
+#include "DockWidget.h"
+
+QT_BEGIN_NAMESPACE
+namespace Ui { class CMainWindow; }
+QT_END_NAMESPACE
+
+class CMainWindow : public QMainWindow
+{
+    Q_OBJECT
+
+public:
+    CMainWindow(QWidget *parent = nullptr);
+    ~CMainWindow();
+
+protected:
+	virtual void closeEvent(QCloseEvent* event) override;
+
+private:
+	QAction* SavePerspectiveAction = nullptr;
+	QWidgetAction* PerspectiveListAction = nullptr;
+	QComboBox* PerspectiveComboBox = nullptr;
+
+    Ui::CMainWindow *ui;
+
+    ads::CDockManager* DockManager;
+    ads::CDockAreaWidget* StatusDockArea;
+    ads::CDockWidget* TimelineDockWidget;
+
+    void createPerspectiveUi();
+
+private slots:
+	void savePerspective();
+};
+#endif // MAINWINDOW_H

examples/autohide/mainwindow.ui

@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>CMainWindow</class>
+ <widget class="QMainWindow" name="CMainWindow">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>1284</width>
+    <height>757</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>MainWindow</string>
+  </property>
+  <widget class="QWidget" name="centralwidget"/>
+  <widget class="QMenuBar" name="menubar">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>0</y>
+     <width>1284</width>
+     <height>21</height>
+    </rect>
+   </property>
+   <widget class="QMenu" name="menuView">
+    <property name="title">
+     <string>View</string>
+    </property>
+   </widget>
+   <addaction name="menuView"/>
+  </widget>
+  <widget class="QToolBar" name="toolBar">
+   <property name="windowTitle">
+    <string>toolBar</string>
+   </property>
+   <attribute name="toolBarArea">
+    <enum>TopToolBarArea</enum>
+   </attribute>
+   <attribute name="toolBarBreak">
+    <bool>false</bool>
+   </attribute>
+  </widget>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

examples/centralwidget/mainwindow.cpp

@@ -96,7 +96,7 @@ void CMainWindow::createPerspectiveUi()
 	PerspectiveComboBox = new QComboBox(this);
 	PerspectiveComboBox->setSizeAdjustPolicy(QComboBox::AdjustToContents);
 	PerspectiveComboBox->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
-	connect(PerspectiveComboBox, SIGNAL(activated(const QString&)),
+	connect(PerspectiveComboBox, SIGNAL(currentTextChanged(const QString&)),
 		DockManager, SLOT(openPerspective(const QString&)));
 	PerspectiveListAction->setDefaultWidget(PerspectiveComboBox);
 	ui->toolBar->addSeparator();

examples/dockindock/dockindock.cpp

@@ -206,11 +206,15 @@ void DockInDockWidget::fillPerspectivesMenu( QMenu* menu )
     if ( !perspectiveNames.isEmpty() )
     {
         QMenu* load = menu->addMenu( "Load perspective" );
-        for ( auto name : perspectiveNames )
-            load->addAction( new LoadPerspectiveAction( load, name, *this ) );
+        for (const auto& name : perspectiveNames)
+        {
+            load->addAction(new LoadPerspectiveAction( load, name, *this));
+        }
         QMenu* remove = menu->addMenu( "Remove perspective" );
-        for ( auto name : perspectiveNames )
-            remove->addAction( new RemovePerspectiveAction( remove, name, *this ) );
+        for (const auto& name : perspectiveNames)
+        {
+            remove->addAction( new RemovePerspectiveAction( remove, name, *this ));
+        }
     }
 }
 

examples/dockindock/perspectives.cpp

@@ -219,8 +219,10 @@ void PerspectivesManager::loadPerspectives()
 
                 // load group info:
                 mainSettings->beginGroup(GROUP_PREFIX);
-                for ( auto key : mainSettings->allKeys() )
+                for (const auto& key : mainSettings->allKeys())
+                {
                     m_perspectives[perspective].groups[key] = mainSettings->value( key ).toStringList();
+                }
                 mainSettings->endGroup();
             }
             else

examples/examples.pro

@@ -1,8 +1,10 @@
 TEMPLATE = subdirs
 
 SUBDIRS = \
+    autohide \
     centralwidget \
 	simple \
+	hideshow \
 	sidebar \
 	deleteonclose \
 	emptydockarea \

examples/hideshow/CMakeLists.txt

@@ -0,0 +1,28 @@
+cmake_minimum_required(VERSION 3.5)
+project(ads_example_hideshow VERSION ${VERSION_SHORT}) 
+find_package(QT NAMES Qt6 Qt5 COMPONENTS Core REQUIRED)
+find_package(Qt${QT_VERSION_MAJOR} 5.5 COMPONENTS Core Gui Widgets REQUIRED)
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+add_executable(HideShowExample WIN32 
+    main.cpp
+    MainWindow.cpp
+    MainWindow.ui
+)
+target_include_directories(HideShowExample PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/../../src")
+target_link_libraries(HideShowExample PRIVATE qtadvanceddocking)
+target_link_libraries(HideShowExample PUBLIC Qt${QT_VERSION_MAJOR}::Core 
+                                             Qt${QT_VERSION_MAJOR}::Gui 
+                                             Qt${QT_VERSION_MAJOR}::Widgets)
+set_target_properties(HideShowExample PROPERTIES 
+    AUTOMOC ON
+    AUTORCC ON
+    AUTOUIC ON
+    CXX_STANDARD 14
+    CXX_STANDARD_REQUIRED ON
+    CXX_EXTENSIONS OFF
+    VERSION ${VERSION_SHORT}
+    EXPORT_NAME "Qt Advanced Docking System Hide,Show Example"
+    ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/${ads_PlatformDir}/lib"
+    LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/${ads_PlatformDir}/lib"
+    RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/${ads_PlatformDir}/bin"
+)

examples/hideshow/MainWindow.cpp

@@ -0,0 +1,80 @@
+#include "../../examples/hideshow/MainWindow.h"
+
+#include "ui_MainWindow.h"
+
+#include <QLabel>
+#include <QPushButton>
+
+using namespace ads;
+
+MainWindow::MainWindow(QWidget *parent) :
+    QMainWindow(parent),
+    ui(new Ui::MainWindow)
+{
+    ui->setupUi(this);
+
+    ui->centralWidget->setLayout( m_layout = new QStackedLayout() );
+
+    m_welcomeWidget = new QWidget(this);
+    auto welcomeLayout = new QVBoxLayout(m_welcomeWidget);
+    welcomeLayout->addStretch();
+    QPushButton* openButton = new QPushButton("Open project");
+    welcomeLayout->addWidget( openButton );
+    welcomeLayout->addStretch();
+
+    connect( openButton, SIGNAL(clicked()), this, SLOT(openProject()) );
+
+    m_DockManager = new ads::CDockManager(ui->centralWidget);
+
+    // Create example content label - this can be any application specific
+	// widget
+	QLabel* l = new QLabel();
+	l->setWordWrap(true);
+	l->setAlignment(Qt::AlignTop | Qt::AlignLeft);
+	l->setText("Lorem ipsum dolor sit amet, consectetuer adipiscing elit. ");
+
+	// Create a dock widget with the title Label 1 and set the created label
+	// as the dock widget content
+	ads::CDockWidget* DockWidget = new ads::CDockWidget("Label 1");
+	DockWidget->setWidget(l);
+
+	// Add the toggleViewAction of the dock widget to the menu to give
+	// the user the possibility to show the dock widget if it has been closed
+	ui->menuView->addAction(DockWidget->toggleViewAction());
+
+    connect( ui->actionOpen, SIGNAL(triggered()), this, SLOT(openProject()) );
+    connect( ui->actionClose, SIGNAL(triggered()), this, SLOT(closeProject()) );
+
+	// Add the dock widget to the top dock widget area
+	m_DockManager->addDockWidget(ads::TopDockWidgetArea, DockWidget);
+
+    ui->centralWidget->layout()->addWidget( m_welcomeWidget );
+    ui->centralWidget->layout()->addWidget( m_DockManager );
+
+    closeProject();
+}
+
+MainWindow::~MainWindow()
+{
+    delete ui;
+}
+
+void MainWindow::openProject()
+{
+    ui->actionOpen->setEnabled(false);
+    ui->actionClose->setEnabled(true);
+    ui->menuView->setEnabled(true);
+
+    m_layout->setCurrentWidget( m_DockManager );
+}
+
+void MainWindow::closeProject()
+{
+    ui->actionOpen->setEnabled(true);
+    ui->actionClose->setEnabled(false);
+    ui->menuView->setEnabled(false);
+
+    m_DockManager->hideManagerAndFloatingWidgets();
+    m_layout->setCurrentWidget( m_welcomeWidget );
+}
+

examples/hideshow/MainWindow.h

@@ -0,0 +1,33 @@
+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QMainWindow>
+#include <QStackedLayout>
+#include "DockManager.h"
+
+QT_BEGIN_NAMESPACE
+namespace Ui {
+class MainWindow;
+}
+QT_END_NAMESPACE
+
+class MainWindow : public QMainWindow
+{
+    Q_OBJECT
+
+public:
+    explicit MainWindow(QWidget *parent = 0);
+    ~MainWindow();
+
+private slots:
+    void openProject();
+    void closeProject();
+
+private:
+    Ui::MainWindow *ui;
+    QWidget* m_welcomeWidget;
+    ads::CDockManager* m_DockManager;
+    QStackedLayout* m_layout;
+};
+
+#endif // MAINWINDOW_H

examples/hideshow/MainWindow.ui

@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>MainWindow</class>
+ <widget class="QMainWindow" name="MainWindow">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>300</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>MainWindow</string>
+  </property>
+  <widget class="QWidget" name="centralWidget"/>
+  <widget class="QMenuBar" name="menuBar">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>0</y>
+     <width>400</width>
+     <height>26</height>
+    </rect>
+   </property>
+   <widget class="QMenu" name="menuView">
+    <property name="title">
+     <string>View</string>
+    </property>
+   </widget>
+   <widget class="QMenu" name="menuFile">
+    <property name="title">
+     <string>File</string>
+    </property>
+    <addaction name="actionOpen"/>
+    <addaction name="actionClose"/>
+   </widget>
+   <addaction name="menuFile"/>
+   <addaction name="menuView"/>
+  </widget>
+  <widget class="QStatusBar" name="statusBar"/>
+  <action name="actionOpen">
+   <property name="text">
+    <string>Open project</string>
+   </property>
+  </action>
+  <action name="actionClose">
+   <property name="text">
+    <string>Close project</string>
+   </property>
+  </action>
+ </widget>
+ <layoutdefault spacing="6" margin="11"/>
+ <resources/>
+ <connections/>
+</ui>

examples/hideshow/hideshow.pro

@@ -0,0 +1,31 @@
+ADS_OUT_ROOT = $${OUT_PWD}/../..
+
+QT += core gui widgets
+
+TARGET = HideShowExample
+DESTDIR = $${ADS_OUT_ROOT}/lib
+TEMPLATE = app
+CONFIG += c++14
+CONFIG += debug_and_release
+adsBuildStatic {
+    DEFINES += ADS_STATIC
+}
+
+DEFINES += QT_DEPRECATED_WARNINGS
+
+SOURCES += \
+        main.cpp \
+        MainWindow.cpp
+
+HEADERS += \
+        MainWindow.h
+
+FORMS += \
+        MainWindow.ui
+        
+
+LIBS += -L$${ADS_OUT_ROOT}/lib
+include(../../ads.pri)
+INCLUDEPATH += ../../src
+DEPENDPATH += ../../src    
+

examples/hideshow/main.cpp

@@ -0,0 +1,11 @@
+#include <QApplication>
+#include "../../examples/hideshow/MainWindow.h"
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    MainWindow w;
+    w.show();
+
+    return a.exec();
+}

examples/sidebar/MainWindow.cpp

@@ -43,6 +43,7 @@ MainWindow::MainWindow(QWidget *parent) :
 	QPlainTextEdit* te = new QPlainTextEdit();
 	te->setPlaceholderText("Please enter your text here into this QPlainTextEdit...");
 	DockWidget = new ads::CDockWidget("Editor 1");
+	DockWidget->setWidget(te);
 	ui->menuView->addAction(DockWidget->toggleViewAction());
 	m_DockManager->addDockWidget(ads::BottomDockWidgetArea, DockWidget);
 }

persist/perspectives.ini

@@ -0,0 +1,2 @@
+[Perspectives]
+size=0

project.py

@@ -0,0 +1,27 @@
+import os
+
+from pyqtbuild import PyQtBindings, PyQtProject
+from sipbuild import Option
+
+class PyQtAds(PyQtProject):
+	def __init__(self):
+		""" Initialise the project. """
+
+		super().__init__()
+
+		self.bindings_factories = [ads]
+
+class ads(PyQtBindings):
+	def __init__(self, project):
+		""" Initialise the bindings. """
+
+		super().__init__(project, 'ads')
+
+	def apply_user_defaults(self, tool):
+		""" Set default values for user options that haven't been set yet. """
+
+		resource_file = os.path.join(self.project.root_dir,'src','ads.qrc')
+		print("Adding resource file to qmake project: ", resource_file)
+		self.builder_settings.append('RESOURCES += '+resource_file)
+		
+		super().apply_user_defaults(tool)

pyproject.toml

@@ -0,0 +1,65 @@
+# Specify the build system.
+[build-system]
+requires = ["sip >=6.0.2, <6.6", "PyQt-builder >=1.6, <2", "PyQt5>=5.15.4", "PyQt5-sip<13,>=12.8"]
+build-backend = "sipbuild.api"
+
+# Specify the PEP 566 metadata for the project.
+[tool.sip.metadata]
+name = "PyQtAds"
+version = "3.8.2"
+summary = "Python bindings for Qt Advanced Docking System"
+home-page = "https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System/"
+license = "LGPL v2.1"
+description-file = "README.md"
+requires-dist = "PyQt5 (>=5.15.4)"
+description-content-type = "text/markdown"
+
+[tool.sip.project]
+tag-prefix = "QtAds"
+
+[tool.sip.bindings.ads]
+define-macros = ["ADS_SHARED_EXPORT"]
+sip-file = "ads.sip"
+include-dirs = ["src"]
+qmake-QT = ["widgets"]
+headers = [
+	"src/DockAreaTabBar.h",
+	"src/DockAreaTitleBar.h",
+	"src/DockAreaTitleBar_p.h",
+	"src/DockAreaWidget.h",
+	"src/DockComponentsFactory.h",
+	"src/DockContainerWidget.h",
+	"src/DockFocusController.h",
+	"src/DockManager.h",
+	"src/DockOverlay.h",
+	"src/DockSplitter.h",
+	"src/DockWidget.h",
+	"src/DockWidgetTab.h",
+	"src/DockingStateReader.h",
+	"src/ElidingLabel.h",
+	"src/FloatingDockContainer.h",
+	"src/FloatingDragPreview.h",
+	"src/IconProvider.h",
+	"src/ads_globals.h",
+	# "src/linux/FloatingWidgetTitleBar.h",
+]
+sources = [
+	"src/DockAreaTabBar.cpp",
+	"src/DockAreaTitleBar.cpp",
+	"src/DockAreaWidget.cpp",
+	"src/DockComponentsFactory.cpp",
+	"src/DockContainerWidget.cpp",
+	"src/DockFocusController.cpp",
+	"src/DockManager.cpp",
+	"src/DockOverlay.cpp",
+	"src/DockSplitter.cpp",
+	"src/DockWidget.cpp",
+	"src/DockWidgetTab.cpp",
+	"src/DockingStateReader.cpp",
+	"src/ElidingLabel.cpp",
+	"src/FloatingDockContainer.cpp",
+	"src/FloatingDragPreview.cpp",
+	"src/IconProvider.cpp",
+	"src/ads_globals.cpp",
+	# "src/linux/FloatingWidgetTitleBar.cpp",
+]

sip/DockManager.sip

@@ -172,6 +172,7 @@ public:
         EqualSplitOnInsertion,
         FloatingContainerForceNativeTitleBar,
         FloatingContainerForceQWidgetTitleBar,
+        MiddleMouseButtonClosesTab,
         DefaultDockAreaButtons,
 		DefaultBaseConfig,
         DefaultOpaqueConfig,

sip/DockWidget.sip

@@ -34,6 +34,7 @@ public:
         DockWidgetFocusable,
         DockWidgetForceCloseWithArea,
         NoTab,
+        DeleteContentOnClose,
         DefaultDockWidgetFeatures,
         AllDockWidgetFeatures,
         DockWidgetAlwaysCloseAndDelete,

sip/ads.sip

@@ -1,4 +1,4 @@
-%Module(name=PyQtAds.QtAds.ads, call_super_init=True, keyword_arguments="Optional", use_limited_api=True)
+%Module(name=PyQtAds, call_super_init=True, keyword_arguments="Optional", use_limited_api=True)
 %Import QtCore/QtCoremod.sip
 %DefaultSupertype sip.simplewrapper
 

src/AutoHideDockContainer.cpp

@@ -0,0 +1,647 @@
+/*******************************************************************************
+** Qt Advanced Docking System
+** Copyright (C) 2017 Uwe Kindler
+**
+** This library is free software; you can redistribute it and/or
+** modify it under the terms of the GNU Lesser General Public
+** License as published by the Free Software Foundation; either
+** version 2.1 of the License, or (at your option) any later version.
+**
+** This library is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+** Lesser General Public License for more details.
+**
+** You should have received a copy of the GNU Lesser General Public
+** License along with this library; If not, see <http://www.gnu.org/licenses/>.
+******************************************************************************/
+
+
+//============================================================================
+/// \file   AutoHideDockContainer.cpp
+/// \author Syarif Fakhri
+/// \date   05.09.2022
+/// \brief  Implementation of CAutoHideDockContainer class
+//============================================================================
+
+//============================================================================
+//                                   INCLUDES
+//============================================================================
+#include "AutoHideDockContainer.h"
+
+#include <QXmlStreamWriter>
+#include <QBoxLayout>
+#include <QPainter>
+#include <QSplitter>
+#include <QPointer>
+#include <QApplication>
+#include <QCursor>
+
+#include "DockManager.h"
+#include "DockAreaWidget.h"
+#include "ResizeHandle.h"
+#include "DockComponentsFactory.h"
+#include "AutoHideSideBar.h"
+#include "AutoHideTab.h"
+
+
+#include <iostream>
+
+namespace ads
+{
+static const int ResizeMargin = 30;
+
+//============================================================================
+bool static isHorizontalArea(SideBarLocation Area)
+{
+	switch (Area)
+	{
+	case SideBarLocation::SideBarTop:
+	case SideBarLocation::SideBarBottom: return true;
+	case SideBarLocation::SideBarLeft:
+	case SideBarLocation::SideBarRight: return false;
+	default:
+		return true;
+	}
+
+	return true;
+}
+
+
+//============================================================================
+Qt::Edge static edgeFromSideTabBarArea(SideBarLocation Area)
+{
+	switch (Area)
+	{
+	case SideBarLocation::SideBarTop: return Qt::BottomEdge;
+	case SideBarLocation::SideBarBottom: return Qt::TopEdge;
+	case SideBarLocation::SideBarLeft: return Qt::RightEdge;
+	case SideBarLocation::SideBarRight: return Qt::LeftEdge;
+	default:
+		return Qt::LeftEdge;
+	}
+
+	return Qt::LeftEdge;
+}
+
+
+//============================================================================
+int resizeHandleLayoutPosition(SideBarLocation Area)
+{
+	switch (Area)
+	{
+	case SideBarLocation::SideBarBottom:
+	case SideBarLocation::SideBarRight: return 0;
+
+	case SideBarLocation::SideBarTop:
+	case SideBarLocation::SideBarLeft: return 1;
+
+	default:
+		return 0;
+	}
+
+	return 0;
+}
+
+
+/**
+ * Private data of CAutoHideDockContainer - pimpl
+ */
+struct AutoHideDockContainerPrivate
+{
+    CAutoHideDockContainer* _this;
+	CDockAreaWidget* DockArea{nullptr};
+	CDockWidget* DockWidget{nullptr};
+	SideBarLocation SideTabBarArea = SideBarNone;
+	QBoxLayout* Layout = nullptr;
+	CResizeHandle* ResizeHandle = nullptr;
+	QSize Size; // creates invalid size
+	QPointer<CAutoHideTab> SideTab;
+
+	/**
+	 * Private data constructor
+	 */
+	AutoHideDockContainerPrivate(CAutoHideDockContainer *_public);
+
+	/**
+	 * Convenience function to get a dock widget area
+	 */
+	DockWidgetArea getDockWidgetArea(SideBarLocation area)
+	{
+        switch (area)
+        {
+            case SideBarLocation::SideBarLeft: return LeftDockWidgetArea;
+            case SideBarLocation::SideBarRight: return RightDockWidgetArea;
+            case SideBarLocation::SideBarBottom: return BottomDockWidgetArea;
+            case SideBarLocation::SideBarTop: return TopDockWidgetArea;
+            default:
+            	return LeftDockWidgetArea;
+        }
+
+		return LeftDockWidgetArea;
+	}
+
+	/**
+	 * Update the resize limit of the resize handle
+	 */
+	void updateResizeHandleSizeLimitMax()
+	{
+		auto Rect = _this->dockContainer()->contentRect();
+		const auto maxResizeHandleSize = ResizeHandle->orientation() == Qt::Horizontal
+			? Rect.width() : Rect.height();
+		ResizeHandle->setMaxResizeSize(maxResizeHandleSize - ResizeMargin);
+	}
+
+	/**
+	 * Convenience function to check, if this is an horizontal area
+	 */
+	bool isHorizontal() const
+	{
+		return isHorizontalArea(SideTabBarArea);
+	}
+
+	/**
+	 * Forward this event to the dock container
+	 */
+	void forwardEventToDockContainer(QEvent* event)
+	{
+		auto DockContainer = _this->dockContainer();
+		if (DockContainer)
+		{
+			DockContainer->handleAutoHideWidgetEvent(event, _this);
+		}
+	}
+
+}; // struct AutoHideDockContainerPrivate
+
+
+//============================================================================
+AutoHideDockContainerPrivate::AutoHideDockContainerPrivate(
+    CAutoHideDockContainer *_public) :
+	_this(_public)
+{
+
+}
+
+
+//============================================================================
+CDockContainerWidget* CAutoHideDockContainer::dockContainer() const
+{
+	if (d->DockArea)
+	{
+		return d->DockArea->dockContainer();
+	}
+	else
+	{
+		return internal::findParent<CDockContainerWidget*>(this);
+	}
+}
+
+
+//============================================================================
+CAutoHideDockContainer::CAutoHideDockContainer(CDockWidget* DockWidget, SideBarLocation area, CDockContainerWidget* parent) :
+	Super(parent),
+    d(new AutoHideDockContainerPrivate(this))
+{
+	hide(); // auto hide dock container is initially always hidden
+	d->SideTabBarArea = area;
+	d->SideTab = componentsFactory()->createDockWidgetSideTab(nullptr);
+	connect(d->SideTab, &CAutoHideTab::pressed, this, &CAutoHideDockContainer::toggleCollapseState);
+	d->DockArea = new CDockAreaWidget(DockWidget->dockManager(), parent);
+	d->DockArea->setObjectName("autoHideDockArea");
+	d->DockArea->setAutoHideDockContainer(this);
+
+	setObjectName("autoHideDockContainer");
+
+	d->Layout = new QBoxLayout(isHorizontalArea(area) ? QBoxLayout::TopToBottom : QBoxLayout::LeftToRight);
+	d->Layout->setContentsMargins(0, 0, 0, 0);
+	d->Layout->setSpacing(0);
+	setLayout(d->Layout);
+	d->ResizeHandle = new CResizeHandle(edgeFromSideTabBarArea(area), this);
+	d->ResizeHandle->setMinResizeSize(64);
+	bool OpaqueResize = CDockManager::testConfigFlag(CDockManager::OpaqueSplitterResize);
+	d->ResizeHandle->setOpaqueResize(OpaqueResize);
+	d->Size = d->DockArea->size();
+
+	addDockWidget(DockWidget);
+	parent->registerAutoHideWidget(this);
+	// The dock area should not be added to the layout before it contains the
+	// dock widget. If you add it to the layout before it contains the dock widget
+	// then you will likely see this warning for OpenGL widgets or QAxWidgets:
+	// setGeometry: Unable to set geometry XxY+Width+Height on QWidgetWindow/'WidgetClassWindow
+	d->Layout->addWidget(d->DockArea);
+	d->Layout->insertWidget(resizeHandleLayoutPosition(area), d->ResizeHandle);
+}
+
+
+//============================================================================
+void CAutoHideDockContainer::updateSize()
+{
+	auto dockContainerParent = dockContainer();
+	if (!dockContainerParent)
+	{
+		return;
+	}
+
+	auto rect = dockContainerParent->contentRect();
+
+	switch (sideBarLocation())
+	{
+	case SideBarLocation::SideBarTop:
+		 resize(rect.width(), qMin(rect.height()  - ResizeMargin, d->Size.height()));
+		 move(rect.topLeft());
+		 break;
+
+	case SideBarLocation::SideBarLeft:
+		 resize(qMin(d->Size.width(), rect.width() - ResizeMargin), rect.height());
+		 move(rect.topLeft());
+		 break;
+
+	case SideBarLocation::SideBarRight:
+		 {
+			 resize(qMin(d->Size.width(), rect.width() - ResizeMargin), rect.height());
+			 QPoint p = rect.topRight();
+			 p.rx() -= (width() - 1);
+			 move(p);
+		 }
+		 break;
+
+	case SideBarLocation::SideBarBottom:
+		 {
+			 resize(rect.width(), qMin(rect.height() - ResizeMargin, d->Size.height()));
+			 QPoint p = rect.bottomLeft();
+			 p.ry() -= (height() - 1);
+			 move(p);
+		 }
+		 break;
+
+	default:
+		break;
+	}
+}
+
+//============================================================================
+CAutoHideDockContainer::~CAutoHideDockContainer()
+{
+	ADS_PRINT("~CAutoHideDockContainer");
+
+	// Remove event filter in case there are any queued messages
+	qApp->removeEventFilter(this);
+	if (dockContainer())
+	{
+		dockContainer()->removeAutoHideWidget(this);
+	}
+
+	if (d->SideTab)
+	{
+		delete d->SideTab;
+	}
+
+	delete d;
+}
+
+//============================================================================
+CAutoHideSideBar* CAutoHideDockContainer::sideBar() const
+{
+	auto DockContainer = dockContainer();
+	return DockContainer ? DockContainer->sideTabBar(d->SideTabBarArea) : nullptr;
+}
+
+
+//============================================================================
+CAutoHideTab* CAutoHideDockContainer::autoHideTab() const
+{
+	return d->SideTab;
+}
+
+
+//============================================================================
+CDockWidget* CAutoHideDockContainer::dockWidget() const
+{
+	return d->DockWidget;
+}
+
+//============================================================================
+void CAutoHideDockContainer::addDockWidget(CDockWidget* DockWidget)
+{
+	if (d->DockWidget)
+	{
+		// Remove the old dock widget at this area
+        d->DockArea->removeDockWidget(d->DockWidget);
+	}
+
+	d->DockWidget = DockWidget;
+	d->SideTab->setDockWidget(DockWidget);
+    CDockAreaWidget* OldDockArea = DockWidget->dockAreaWidget();
+    auto IsRestoringState = DockWidget->dockManager()->isRestoringState();
+    if (OldDockArea && !IsRestoringState)
+    {
+		// The initial size should be a little bit bigger than the original dock
+		// area size to prevent that the resize handle of this auto hid dock area
+		// is near of the splitter of the old dock area.
+		d->Size = OldDockArea->size() + QSize(16, 16);
+        OldDockArea->removeDockWidget(DockWidget);
+    }
+	d->DockArea->addDockWidget(DockWidget);
+	updateSize();
+}
+
+
+//============================================================================
+SideBarLocation CAutoHideDockContainer::sideBarLocation() const
+{
+	return d->SideTabBarArea;
+}
+
+
+//============================================================================
+void CAutoHideDockContainer::setSideBarLocation(SideBarLocation SideBarLocation)
+{
+	if (d->SideTabBarArea == SideBarLocation)
+	{
+		return;
+	}
+
+	d->SideTabBarArea = SideBarLocation;
+	d->Layout->removeWidget(d->ResizeHandle);
+	d->Layout->setDirection(isHorizontalArea(SideBarLocation) ? QBoxLayout::TopToBottom : QBoxLayout::LeftToRight);
+	d->Layout->insertWidget(resizeHandleLayoutPosition(SideBarLocation), d->ResizeHandle);
+	d->ResizeHandle->setHandlePosition(edgeFromSideTabBarArea(SideBarLocation));
+    internal::repolishStyle(this, internal::RepolishDirectChildren);
+}
+
+
+//============================================================================
+CDockAreaWidget* CAutoHideDockContainer::dockAreaWidget() const
+{
+	return d->DockArea;
+}
+
+//============================================================================
+void CAutoHideDockContainer::moveContentsToParent()
+{
+	cleanupAndDelete();
+	// If we unpin the auto hide dock widget, then we insert it into the same
+	// location like it had as a auto hide widget.  This brings the least surprise
+	// to the user and he does not have to search where the widget was inserted.
+	d->DockWidget->setDockArea(nullptr);
+	auto DockContainer = dockContainer();
+	DockContainer->addDockWidget(d->getDockWidgetArea(d->SideTabBarArea), d->DockWidget);
+}
+
+
+//============================================================================
+void CAutoHideDockContainer::cleanupAndDelete()
+{
+	const auto dockWidget = d->DockWidget;
+	if (dockWidget)
+	{
+
+		auto SideTab = d->SideTab;
+        SideTab->removeFromSideBar();
+        SideTab->setParent(nullptr);
+        SideTab->hide();
+	}
+
+	hide();
+	deleteLater();
+}
+
+
+//============================================================================
+void CAutoHideDockContainer::saveState(QXmlStreamWriter& s)
+{
+	s.writeStartElement("Widget");
+	s.writeAttribute("Name", d->DockWidget->objectName());
+	s.writeAttribute("Closed", QString::number(d->DockWidget->isClosed() ? 1 : 0));
+    s.writeAttribute("Size", QString::number(d->isHorizontal() ? d->Size.height() : d->Size.width()));
+	s.writeEndElement();
+}
+
+
+//============================================================================
+void CAutoHideDockContainer::toggleView(bool Enable)
+{
+	if (Enable)
+	{
+        if (d->SideTab)
+        {
+            d->SideTab->show();
+        }
+	}
+	else
+	{
+        if (d->SideTab)
+        {
+            d->SideTab->hide();
+        }
+        hide();
+        qApp->removeEventFilter(this);
+	}
+}
+
+
+//============================================================================
+void CAutoHideDockContainer::collapseView(bool Enable)
+{
+	if (Enable)
+	{
+		hide();
+		qApp->removeEventFilter(this);
+	}
+	else
+	{
+		updateSize();
+		d->updateResizeHandleSizeLimitMax();
+		raise();
+		show();
+		d->DockWidget->dockManager()->setDockWidgetFocused(d->DockWidget);
+		qApp->installEventFilter(this);
+	}
+
+	ADS_PRINT("CAutoHideDockContainer::collapseView " << Enable);
+    d->SideTab->updateStyle();
+}
+
+
+//============================================================================
+void CAutoHideDockContainer::toggleCollapseState()
+{
+	collapseView(isVisible());
+}
+
+
+//============================================================================
+void CAutoHideDockContainer::setSize(int Size)
+{
+	if (d->isHorizontal())
+	{
+		d->Size.setHeight(Size);
+	}
+	else
+	{
+		d->Size.setWidth(Size);
+	}
+
+	updateSize();
+}
+
+
+//============================================================================
+/**
+ * Returns true if the object given in ancestor is an ancestor of the object
+ * given in descendant
+ */
+static bool objectIsAncestorOf(const QObject* descendant, const QObject* ancestor)
+{
+    if (!ancestor)
+    {
+        return false;
+    }
+    while (descendant)
+    {
+        if (descendant == ancestor)
+        {
+            return true;
+        }
+        descendant = descendant->parent();
+    }
+    return false;
+}
+
+
+//============================================================================
+/**
+ * Returns true if the object given in ancestor is the object given in descendant
+ * or if it is an ancestor of the object given in descendant
+ */
+static bool isObjectOrAncestor(const QObject *descendant, const QObject *ancestor)
+{
+	if (ancestor && (descendant == ancestor))
+	{
+		return true;
+	}
+	else
+	{
+		return objectIsAncestorOf(descendant, ancestor);
+	}
+}
+
+
+//============================================================================
+bool CAutoHideDockContainer::eventFilter(QObject* watched, QEvent* event)
+{
+	// A switch case statement would be nicer here, but we cannot use
+	// internal::FloatingWidgetDragStartEvent in a switch case
+    if (event->type() == QEvent::Resize)
+	{
+		if (!d->ResizeHandle->isResizing())
+		{
+			updateSize();
+		}
+	}
+	else if (event->type() == QEvent::MouseButtonPress)
+	{
+		auto widget = qobject_cast<QWidget*>(watched);
+		// Ignore non widget events
+		if (!widget)
+		{
+			return Super::eventFilter(watched, event);
+		}
+
+		// Now check, if the user clicked into the side tab and ignore this event,
+		// because the side tab click handler will call collapseView(). If we
+		// do not ignore this here, then we will collapse the container and the side tab
+		// click handler will uncollapse it
+		if (widget == d->SideTab.data())
+		{
+			return Super::eventFilter(watched, event);
+		}
+
+		// Now we check, if the user clicked inside of this auto hide container.
+		// If the click is inside of this auto hide container, then we can
+		// ignore the event, because the auto hide overlay should not get collapsed if
+		// user works in it
+		if (isObjectOrAncestor(widget, this))
+		{
+			return Super::eventFilter(watched, event);
+		}
+
+		// Ignore the mouse click if it is not inside of this container
+		if (!isObjectOrAncestor(widget, dockContainer()))
+		{
+			return Super::eventFilter(watched, event);
+		}
+
+		// user clicked into container - collapse the auto hide widget
+		collapseView(true);
+	}
+    else if (event->type() == internal::FloatingWidgetDragStartEvent)
+    {
+    	// If we are dragging our own floating widget, the we do not need to
+    	// collapse the view
+    	auto FloatingWidget = dockContainer()->floatingWidget();
+    	if (FloatingWidget != watched)
+    	{
+    		collapseView(true);
+    	}
+    }
+    else if (event->type() == internal::DockedWidgetDragStartEvent)
+    {
+    	collapseView(true);
+    }
+
+	return Super::eventFilter(watched, event);
+}
+
+
+//============================================================================
+void CAutoHideDockContainer::resizeEvent(QResizeEvent* event)
+{
+    Super::resizeEvent(event);
+	if (d->ResizeHandle->isResizing())
+	{
+        d->Size = this->size();
+		d->updateResizeHandleSizeLimitMax();
+	}
+}
+
+
+//============================================================================
+void CAutoHideDockContainer::leaveEvent(QEvent *event)
+{
+	// Resizing of the dock container via the resize handle in non opaque mode
+	// mays cause a leave event that is not really a leave event. Therefore
+	// we check here, if we are really outside of our rect.
+	auto pos = mapFromGlobal(QCursor::pos());
+	if (!rect().contains(pos))
+	{
+		d->forwardEventToDockContainer(event);
+	}
+	Super::leaveEvent(event);
+}
+
+
+//============================================================================
+bool CAutoHideDockContainer::event(QEvent* event)
+{
+	switch (event->type())
+	{
+	case QEvent::Enter:
+	case QEvent::Hide:
+		 d->forwardEventToDockContainer(event);
+		 break;
+
+	case QEvent::MouseButtonPress:
+		 return true;
+		 break;
+
+	default:
+		break;
+	}
+
+	return Super::event(event);
+}
+
+}
+

src/AutoHideDockContainer.h

@@ -0,0 +1,173 @@
+#ifndef AutoHideDockContainerH
+#define AutoHideDockContainerH
+/*******************************************************************************
+** Qt Advanced Docking System
+** Copyright (C) 2017 Uwe Kindler
+**
+** This library is free software; you can redistribute it and/or
+** modify it under the terms of the GNU Lesser General Public
+** License as published by the Free Software Foundation; either
+** version 2.1 of the License, or (at your option) any later version.
+**
+** This library is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+** Lesser General Public License for more details.
+**
+** You should have received a copy of the GNU Lesser General Public
+** License along with this library; If not, see <http://www.gnu.org/licenses/>.
+******************************************************************************/
+
+
+//============================================================================
+/// \file   AutoHideDockContainer.h
+/// \author Syarif Fakhri
+/// \date   05.09.2022
+/// \brief  Declaration of CAutoHideDockContainer class
+//============================================================================
+
+//============================================================================
+//                                   INCLUDES
+//============================================================================
+#include "ads_globals.h"
+
+#include <QSplitter>
+#include "AutoHideTab.h"
+
+class QXmlStreamWriter;
+
+namespace ads
+{
+struct AutoHideDockContainerPrivate;
+class CDockManager;
+class CDockWidget;
+class CDockContainerWidget;
+class CAutoHideSideBar;
+class CDockAreaWidget;
+class CDockingStateReader;
+struct SideTabBarPrivate;
+
+/**
+ * Auto hide container for hosting an auto hide dock widget
+ */
+class ADS_EXPORT CAutoHideDockContainer : public QFrame
+{
+	Q_OBJECT
+    Q_PROPERTY(int sideBarLocation READ sideBarLocation)
+private:
+	AutoHideDockContainerPrivate* d; ///< private data (pimpl)
+	friend struct AutoHideDockContainerPrivate;
+	friend CAutoHideSideBar;
+	friend SideTabBarPrivate;
+
+protected:
+	virtual bool eventFilter(QObject* watched, QEvent* event) override;
+	virtual void resizeEvent(QResizeEvent* event) override;
+	virtual void leaveEvent(QEvent *event) override;
+	virtual bool event(QEvent* event) override;
+
+	/**
+	 * Updates the size considering the size limits and the resize margins
+	 */
+	void updateSize();
+
+	/*
+	 * Saves the state and size
+	 */
+	void saveState(QXmlStreamWriter& Stream);
+
+public:
+	using Super = QFrame;
+
+    /**
+	 * Create Auto Hide widget with the given dock widget
+	 */
+	CAutoHideDockContainer(CDockWidget* DockWidget, SideBarLocation area,
+		CDockContainerWidget* parent);
+
+	/**
+	 * Virtual Destructor
+	 */
+	virtual ~CAutoHideDockContainer();
+
+	/**
+	 * Get's the side tab bar
+	 */
+	CAutoHideSideBar* sideBar() const;
+
+	/**
+	 * Returns the side tab
+	 */
+	CAutoHideTab* autoHideTab() const;
+
+	/**
+	 * Get's the dock widget in this dock container
+	 */
+	CDockWidget* dockWidget() const;
+
+	/**
+	 * Adds a dock widget and removes the previous dock widget
+	 */
+	void addDockWidget(CDockWidget* DockWidget);
+
+    /**
+	 * Returns the side tab bar area of this Auto Hide dock container
+	 */
+	SideBarLocation sideBarLocation() const;
+
+	/**
+	 * Sets a new SideBarLocation.
+	 * If a new side bar location is set, the auto hide dock container needs
+	 * to update its resize handle position
+	 */
+	void setSideBarLocation(SideBarLocation SideBarLocation);
+
+	/**
+	 * Returns the dock area widget of this Auto Hide dock container
+	 */
+	CDockAreaWidget* dockAreaWidget() const;
+
+	/**
+	 * Returns the parent container that hosts this auto hide container
+	 */
+	CDockContainerWidget* dockContainer() const;
+
+	/**
+	 * Moves the contents to the parent container widget
+	 * Used before removing this Auto Hide dock container 
+	 */
+    void moveContentsToParent();
+
+	/**
+	 * Cleanups up the side tab widget and then deletes itself
+	 */
+	void cleanupAndDelete();
+
+	/*
+	 * Toggles the auto Hide dock container widget
+	 * This will also hide the side tab widget
+	 */
+	void toggleView(bool Enable);
+
+	/*
+	 * Collapses the auto hide dock container widget
+	 * Does not hide the side tab widget
+	 */
+	void collapseView(bool Enable);
+
+	/**
+	 * Toggles the current collapse state
+	 */
+	void toggleCollapseState();
+
+	/**
+	 * Use this instead of resize.
+	 * Depending on the sidebar location this will set the width or heigth
+	 * of this auto hide container.
+	 */
+	void setSize(int Size);
+};
+} // namespace ads
+
+//-----------------------------------------------------------------------------
+#endif

src/AutoHideSideBar.cpp

@@ -0,0 +1,388 @@
+/*******************************************************************************
+** Qt Advanced Docking System
+** Copyright (C) 2017 Uwe Kindler
+**
+** This library is free software; you can redistribute it and/or
+** modify it under the terms of the GNU Lesser General Public
+** License as published by the Free Software Foundation; either
+** version 2.1 of the License, or (at your option) any later version.
+**
+** This library is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+** Lesser General Public License for more details.
+**
+** You should have received a copy of the GNU Lesser General Public
+** License along with this library; If not, see <http://www.gnu.org/licenses/>.
+******************************************************************************/
+
+
+//============================================================================
+/// \file   AutoHideSideBar.cpp
+/// \author Syarif Fakhri
+/// \date   05.09.2022
+/// \brief  Implementation of CAutoHideSideBar class
+//============================================================================
+
+
+//============================================================================
+//                                   INCLUDES
+//============================================================================
+#include "AutoHideSideBar.h"
+
+#include <QBoxLayout>
+#include <QStyleOption>
+#include <QPainter>
+#include <QXmlStreamWriter>
+
+#include "DockContainerWidget.h"
+#include "DockWidgetTab.h"
+#include "DockFocusController.h"
+#include "AutoHideDockContainer.h"
+#include "DockAreaWidget.h"
+#include "DockingStateReader.h"
+#include "AutoHideTab.h"
+
+namespace ads
+{
+class CTabsWidget;
+
+/**
+ * Private data class of CSideTabBar class (pimpl)
+ */
+struct AutoHideSideBarPrivate
+{
+	/**
+	 * Private data constructor
+	 */
+	AutoHideSideBarPrivate(CAutoHideSideBar* _public);
+
+    CAutoHideSideBar* _this;
+    CDockContainerWidget* ContainerWidget;
+    CTabsWidget* TabsContainerWidget;
+    QBoxLayout* TabsLayout;
+    Qt::Orientation Orientation;
+    SideBarLocation SideTabArea = SideBarLocation::SideBarLeft;
+
+    /**
+     * Convenience function to check if this is a horizontal side bar
+     */
+    bool isHorizontal() const
+    {
+    	return Qt::Horizontal == Orientation;
+    }
+
+    /**
+     * Called from viewport to forward event handling to this
+     */
+    void handleViewportEvent(QEvent* e);
+}; // struct AutoHideSideBarPrivate
+
+
+/**
+ * This widget stores the tab buttons
+ */
+class CTabsWidget : public QWidget
+{
+public:
+	using QWidget::QWidget;
+	using Super = QWidget;
+	AutoHideSideBarPrivate* EventHandler;
+
+	/**
+	 * Returns the size hint as minimum size hint
+	 */
+	virtual QSize minimumSizeHint() const override
+	{
+		return Super::sizeHint();
+	}
+
+	/**
+	 * Forward event handling to EventHandler
+	 */
+	virtual bool event(QEvent* e) override
+	{
+		EventHandler->handleViewportEvent(e);
+		return Super::event(e);
+	}
+};
+
+
+//============================================================================
+AutoHideSideBarPrivate::AutoHideSideBarPrivate(CAutoHideSideBar* _public) :
+    _this(_public)
+{
+}
+
+
+//============================================================================
+void AutoHideSideBarPrivate::handleViewportEvent(QEvent* e)
+{
+	switch (e->type())
+	{
+	case QEvent::ChildRemoved:
+		if (TabsLayout->isEmpty())
+		{
+			_this->hide();
+		}
+		break;
+
+	case QEvent::Resize:
+		if (_this->tabCount())
+		{
+			auto ev = static_cast<QResizeEvent*>(e);
+			auto Tab = _this->tabAt(0);
+			int Size = isHorizontal() ? ev->size().height() : ev->size().width();
+			int TabSize = isHorizontal() ? Tab->size().height() : Tab->size().width();
+			// If the size of the side bar is less than the size of the first tab
+			// then there are no visible tabs in this side bar. This check will
+			// fail if someone will force a very big border via CSS!!
+			if (Size < TabSize)
+			{
+				_this->hide();
+			}
+		}
+		else
+		{
+			_this->hide();
+		}
+		break;
+
+	default:
+		break;
+	}
+}
+
+
+//============================================================================
+CAutoHideSideBar::CAutoHideSideBar(CDockContainerWidget* parent, SideBarLocation area) :
+    Super(parent),
+    d(new AutoHideSideBarPrivate(this))
+{
+	d->SideTabArea = area;
+    d->ContainerWidget = parent;
+    d->Orientation = (area == SideBarLocation::SideBarBottom || area == SideBarLocation::SideBarTop)
+    	? Qt::Horizontal : Qt::Vertical;
+
+	setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
+	setFrameStyle(QFrame::NoFrame);
+	setWidgetResizable(true);
+	setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+	setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+
+	d->TabsContainerWidget = new CTabsWidget();
+	d->TabsContainerWidget->EventHandler = d;
+	d->TabsContainerWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
+	d->TabsContainerWidget->setObjectName("sideTabsContainerWidget");
+
+
+    d->TabsLayout = new QBoxLayout(d->Orientation == Qt::Vertical ? QBoxLayout::TopToBottom : QBoxLayout::LeftToRight);
+    d->TabsLayout->setContentsMargins(0, 0, 0, 0);
+    d->TabsLayout->setSpacing(12);
+    d->TabsLayout->addStretch(1);
+    d->TabsContainerWidget->setLayout(d->TabsLayout);
+	setWidget(d->TabsContainerWidget);
+
+    setFocusPolicy(Qt::NoFocus);
+	if (d->isHorizontal())
+	{
+		setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
+	}
+	else
+	{
+		setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Expanding);
+	}
+
+	hide();
+}
+
+
+//============================================================================
+CAutoHideSideBar::~CAutoHideSideBar() 
+{
+	ADS_PRINT("~CSideTabBar()");
+	// The SideTabeBar is not the owner of the tabs and to prevent deletion
+	// we set the parent here to nullptr to remove it from the children
+	auto Tabs = findChildren<CAutoHideTab*>(QString(), Qt::FindDirectChildrenOnly);
+	for (auto Tab : Tabs)
+	{
+		Tab->setParent(nullptr);
+	}
+	delete d;
+}
+
+
+//============================================================================
+void CAutoHideSideBar::insertTab(int Index, CAutoHideTab* SideTab)
+{
+    SideTab->setSideBar(this);
+	SideTab->installEventFilter(this);
+    if (Index < 0)
+    {
+    	d->TabsLayout->insertWidget(d->TabsLayout->count() - 1, SideTab);
+    }
+    else
+    {
+    	d->TabsLayout->insertWidget(Index, SideTab);
+    }
+    show();
+}
+
+
+//============================================================================
+CAutoHideDockContainer* CAutoHideSideBar::insertDockWidget(int Index, CDockWidget* DockWidget)
+{
+	auto AutoHideContainer = new CAutoHideDockContainer(DockWidget, d->SideTabArea, d->ContainerWidget);
+	DockWidget->dockManager()->dockFocusController()->clearDockWidgetFocus(DockWidget);
+	auto Tab = AutoHideContainer->autoHideTab();
+	DockWidget->setSideTabWidget(Tab);
+	insertTab(Index, Tab);
+	return AutoHideContainer;
+}
+
+
+//============================================================================
+void CAutoHideSideBar::removeAutoHideWidget(CAutoHideDockContainer* AutoHideWidget)
+{
+	AutoHideWidget->autoHideTab()->removeFromSideBar();
+	auto DockContainer = AutoHideWidget->dockContainer();
+	if (DockContainer)
+	{
+		DockContainer->removeAutoHideWidget(AutoHideWidget);
+	}
+	AutoHideWidget->setParent(nullptr);
+}
+
+//============================================================================
+void CAutoHideSideBar::addAutoHideWidget(CAutoHideDockContainer* AutoHideWidget)
+{
+	auto SideBar = AutoHideWidget->autoHideTab()->sideBar();
+	if (SideBar == this)
+	{
+		return;
+	}
+
+	if (SideBar)
+	{
+		SideBar->removeAutoHideWidget(AutoHideWidget);
+	}
+	AutoHideWidget->setParent(d->ContainerWidget);
+	AutoHideWidget->setSideBarLocation(d->SideTabArea);
+	d->ContainerWidget->registerAutoHideWidget(AutoHideWidget);
+	insertTab(-1, AutoHideWidget->autoHideTab());
+}
+
+
+//============================================================================
+void CAutoHideSideBar::removeTab(CAutoHideTab* SideTab)
+{
+	SideTab->removeEventFilter(this);
+    d->TabsLayout->removeWidget(SideTab);
+    if (d->TabsLayout->isEmpty())
+    {
+    	hide();
+    }
+}
+
+
+//============================================================================
+bool CAutoHideSideBar::eventFilter(QObject *watched, QEvent *event)
+{
+	if (event->type() != QEvent::ShowToParent)
+	{
+		return false;
+	}
+
+	// As soon as on tab is shown, we need to show the side tab bar
+	auto Tab = qobject_cast<CAutoHideTab*>(watched);
+	if (Tab)
+	{
+		show();
+	}
+	return false;
+}
+
+//============================================================================
+Qt::Orientation CAutoHideSideBar::orientation() const
+{
+    return d->Orientation;
+}
+
+
+//============================================================================
+CAutoHideTab* CAutoHideSideBar::tabAt(int index) const
+{
+    return qobject_cast<CAutoHideTab*>(d->TabsLayout->itemAt(index)->widget());
+}
+
+
+//============================================================================
+int CAutoHideSideBar::tabCount() const
+{
+    return d->TabsLayout->count() - 1;
+}
+
+
+//============================================================================
+SideBarLocation CAutoHideSideBar::sideBarLocation() const
+{
+	return d->SideTabArea;
+}
+
+
+//============================================================================
+void CAutoHideSideBar::saveState(QXmlStreamWriter& s) const
+{
+	if (!tabCount())
+	{
+		return;
+	}
+
+	s.writeStartElement("SideBar");
+	s.writeAttribute("Area", QString::number(sideBarLocation()));
+	s.writeAttribute("Tabs", QString::number(tabCount()));
+
+	for (auto i = 0; i < tabCount(); ++i)
+	{
+		auto Tab = tabAt(i);
+		if (!Tab)
+		{
+			continue;
+		}
+
+		Tab->dockWidget()->autoHideDockContainer()->saveState(s);
+	}
+
+	s.writeEndElement();
+}
+
+//===========================================================================
+QSize CAutoHideSideBar::minimumSizeHint() const
+{
+	QSize Size = sizeHint();
+	Size.setWidth(10);
+	return Size;
+}
+
+
+//===========================================================================
+QSize CAutoHideSideBar::sizeHint() const
+{
+	return d->TabsContainerWidget->sizeHint();
+}
+
+
+//===========================================================================
+int CAutoHideSideBar::spacing() const
+{
+	return d->TabsLayout->spacing();
+}
+
+//===========================================================================
+void CAutoHideSideBar::setSpacing(int Spacing)
+{
+	d->TabsLayout->setSpacing(Spacing);
+}
+
+} // namespace ads
+

src/AutoHideSideBar.h

@@ -0,0 +1,169 @@
+#ifndef AutoHideSideBarH
+#define AutoHideSideBarH
+/*******************************************************************************
+** Qt Advanced Docking System
+** Copyright (C) 2017 Uwe Kindler
+**
+** This library is free software; you can redistribute it and/or
+** modify it under the terms of the GNU Lesser General Public
+** License as published by the Free Software Foundation; either
+** version 2.1 of the License, or (at your option) any later version.
+**
+** This library is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+** Lesser General Public License for more details.
+**
+** You should have received a copy of the GNU Lesser General Public
+** License along with this library; If not, see <http://www.gnu.org/licenses/>.
+******************************************************************************/
+
+
+//============================================================================
+/// \file   AutoHideSideBar.h
+/// \author Syarif Fakhri
+/// \date   05.09.2022
+/// \brief  Declaration of CAutoHideSideBar class
+//============================================================================
+
+//============================================================================
+//                                   INCLUDES
+//============================================================================
+#include <QScrollArea>
+#include "ads_globals.h"
+#include "AutoHideTab.h"
+
+class QXmlStreamWriter;
+
+namespace ads
+{
+struct AutoHideSideBarPrivate;
+class DockContainerWidgetPrivate;
+class CDockContainerWidget;
+class CAutoHideTab;
+class CAutoHideDockContainer;
+class CDockingStateReader;
+
+/**
+ * Side tab bar widget that is shown at the edges of a dock container.
+ * The tab bar is only visible, if it contains visible content, that means if
+ * it contains visible tabs. If it is empty or all tabs are hidden, then the
+ * side bar is also hidden. As soon as one single tab becomes visible, this
+ * tab bar will be shown.
+ * The CAutoHideSideBar uses a QScrollArea here, to enable proper resizing.
+ * If the side bar contains many tabs, then the tabs are simply clipped - this
+ * is the same like in visual studio
+ */
+class ADS_EXPORT CAutoHideSideBar : public QScrollArea
+{
+    Q_OBJECT
+    Q_PROPERTY(int sideBarLocation READ sideBarLocation)
+    Q_PROPERTY(Qt::Orientation orientation READ orientation)
+    Q_PROPERTY(int spacing READ spacing WRITE setSpacing)
+
+private:
+    AutoHideSideBarPrivate* d; ///< private data (pimpl)
+	friend struct AutoHideSideBarPrivate;
+	friend class DockWidgetSideTab;
+	friend DockContainerWidgetPrivate;
+	friend CDockContainerWidget;
+
+protected:
+	virtual bool eventFilter(QObject *watched, QEvent *event) override;
+
+	/**
+	 * Saves the state into the given stream
+	 */
+	void saveState(QXmlStreamWriter& Stream) const;
+
+	/**
+	 * Inserts the given dock widget tab at the given position.
+	 * An Index value of -1 appends the side tab at the end.
+	 */
+	void insertTab(int Index, CAutoHideTab* SideTab);
+
+public:
+    using Super = QScrollArea;
+
+	/**
+	 * Default Constructor
+	 */
+    CAutoHideSideBar(CDockContainerWidget* parent, SideBarLocation area);
+
+	/**
+	 * Virtual Destructor
+	 */
+	virtual ~CAutoHideSideBar();
+
+	/**
+	 * Removes the given DockWidgetSideTab from the tabbar
+	 */
+	void removeTab(CAutoHideTab* SideTab);
+
+	/**
+	 * Insert dock widget into the side bar.
+	 * The function creates the auto hide dock container, inserts the
+	 * auto hide tab
+	 */
+	CAutoHideDockContainer* insertDockWidget(int Index, CDockWidget* DockWidget);
+
+	/**
+	 * Removes the auto hide widget from this side bar
+	 */
+	void removeAutoHideWidget(CAutoHideDockContainer* AutoHideWidget);
+
+	/**
+	 * Adds the given AutoHideWidget to this sidebar.
+	 * If the AutoHideWidget is in another sidebar, then it will be removed
+	 * from this sidebar.
+	 */
+	void addAutoHideWidget(CAutoHideDockContainer* AutoHideWidget);
+
+	/**
+	 * Returns orientation of side tab.
+	 */
+	Qt::Orientation orientation() const;
+
+	/*
+	 * get the side tab widget at position, returns nullptr if it's out of bounds
+	 */
+	CAutoHideTab* tabAt(int index) const;
+
+	/*
+	 * Gets the count of the tab widgets
+	 */
+	int tabCount() const;
+
+	/**
+	 * Getter for side tab bar area property
+	 */
+	SideBarLocation sideBarLocation() const;
+
+	/**
+	 * Overrides the minimumSizeHint() function of QScrollArea
+	 * The minimumSizeHint() is bigger than the sizeHint () for the scroll
+	 * area because even if the scrollbars are invisible, the required speace
+	 * is reserved in the minimumSizeHint(). This override simply returns
+	 * sizeHint();
+	 */
+	virtual QSize minimumSizeHint() const override;
+
+	/**
+	 * The function provides a sizeHint that matches the height of the
+	 * internal viewport.
+	 */
+	virtual QSize sizeHint() const override;
+
+	/**
+	 * Getter for spacing property - returns the spacing of the tabs
+	 */
+	int spacing() const;
+
+	/**
+	 * Setter for spacing property - sets the spacing
+	 */
+	void setSpacing(int Spacing);
+};
+} // namespace ads
+//-----------------------------------------------------------------------------
+#endif

src/AutoHideTab.cpp

@@ -0,0 +1,281 @@
+/*******************************************************************************
+** Qt Advanced Docking System
+** Copyright (C) 2017 Uwe Kindler
+**
+** This library is free software; you can redistribute it and/or
+** modify it under the terms of the GNU Lesser General Public
+** License as published by the Free Software Foundation; either
+** version 2.1 of the License, or (at your option) any later version.
+**
+** This library is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+** Lesser General Public License for more details.
+**
+** You should have received a copy of the GNU Lesser General Public
+** License along with this library; If not, see <http://www.gnu.org/licenses/>.
+******************************************************************************/
+
+
+//============================================================================
+/// \file   AutoHideTab.cpp
+/// \author Syarif Fakhri
+/// \date   05.09.2022
+/// \brief  Implementation of CAutoHideTab class
+//============================================================================
+
+//============================================================================
+//                                   INCLUDES
+//============================================================================
+#include "AutoHideTab.h"
+
+#include <QBoxLayout>
+#include <QApplication>
+#include <QElapsedTimer>
+
+#include "AutoHideDockContainer.h"
+#include "AutoHideSideBar.h"
+#include "DockAreaWidget.h"
+#include "DockManager.h"
+#include "DockWidget.h"
+
+namespace ads
+{
+/**
+ * Private data class of CDockWidgetTab class (pimpl)
+ */
+struct AutoHideTabPrivate
+{
+    CAutoHideTab* _this;
+    CDockWidget* DockWidget = nullptr;
+    CAutoHideSideBar* SideBar = nullptr;
+	Qt::Orientation Orientation{Qt::Vertical};
+	QElapsedTimer TimeSinceHoverMousePress;
+
+	/**
+	 * Private data constructor
+	 */
+	AutoHideTabPrivate(CAutoHideTab* _public);
+
+	/**
+	 * Update the orientation, visibility and spacing based on the area of
+	 * the side bar
+	 */
+	void updateOrientation();
+
+	/**
+	 * Convenience function to ease dock container access
+	 */
+	CDockContainerWidget* dockContainer() const
+	{
+		return DockWidget ? DockWidget->dockContainer() : nullptr;
+	}
+
+	/**
+	 * Forward this event to the dock container
+	 */
+	void forwardEventToDockContainer(QEvent* event)
+	{
+		auto DockContainer = dockContainer();
+		if (DockContainer)
+		{
+			DockContainer->handleAutoHideWidgetEvent(event, _this);
+		}
+	}
+}; // struct DockWidgetTabPrivate
+
+
+//============================================================================
+AutoHideTabPrivate::AutoHideTabPrivate(CAutoHideTab* _public) :
+	_this(_public)
+{
+
+}
+
+
+//============================================================================
+void AutoHideTabPrivate::updateOrientation()
+{
+	bool IconOnly = CDockManager::testAutoHideConfigFlag(CDockManager::AutoHideSideBarsIconOnly);
+	if (IconOnly && !_this->icon().isNull())
+	{
+		_this->setText("");
+		_this->setOrientation(Qt::Horizontal);
+	}
+	else
+	{
+		auto area = SideBar->sideBarLocation();
+		_this->setOrientation((area == SideBarBottom || area == SideBarTop) ? Qt::Horizontal : Qt::Vertical);
+	}
+}
+
+
+//============================================================================
+void CAutoHideTab::setSideBar(CAutoHideSideBar* SideTabBar)
+{
+	d->SideBar = SideTabBar;
+	if (d->SideBar)
+	{
+		d->updateOrientation();
+	}
+}
+
+
+//============================================================================
+CAutoHideSideBar* CAutoHideTab::sideBar() const
+{
+	return d->SideBar;
+}
+
+
+//============================================================================
+void CAutoHideTab::removeFromSideBar()
+{
+	if (d->SideBar == nullptr)
+	{
+		return;
+	}
+	d->SideBar->removeTab(this);
+    setSideBar(nullptr);
+}
+
+//============================================================================
+CAutoHideTab::CAutoHideTab(QWidget* parent) :
+	CPushButton(parent),
+	d(new AutoHideTabPrivate(this))
+{
+	setAttribute(Qt::WA_NoMousePropagation);
+	setFocusPolicy(Qt::NoFocus);
+}
+
+
+//============================================================================
+CAutoHideTab::~CAutoHideTab()
+{
+	ADS_PRINT("~CDockWidgetSideTab()");
+	delete d;
+}
+
+
+//============================================================================
+void CAutoHideTab::updateStyle()
+{
+    internal::repolishStyle(this, internal::RepolishDirectChildren);
+	update();
+}
+
+
+//============================================================================
+SideBarLocation CAutoHideTab::sideBarLocation() const
+{
+    if (d->SideBar)
+	{
+        return d->SideBar->sideBarLocation();
+	}
+
+	return SideBarLeft;
+}
+
+
+//============================================================================
+void CAutoHideTab::setOrientation(Qt::Orientation Orientation)
+{
+	d->Orientation = Orientation;
+	if (orientation() == Qt::Horizontal)
+	{
+		setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Fixed);
+	}
+	else
+	{
+		setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Minimum);
+	}
+	CPushButton::setButtonOrientation((Qt::Horizontal == Orientation)
+		? CPushButton::Horizontal : CPushButton::VerticalTopToBottom);
+	updateStyle();
+}
+
+
+//============================================================================
+Qt::Orientation CAutoHideTab::orientation() const
+{
+	return d->Orientation;
+}
+
+
+//============================================================================
+bool CAutoHideTab::isActiveTab() const
+{
+	if (d->DockWidget && d->DockWidget->autoHideDockContainer())
+	{
+		return d->DockWidget->autoHideDockContainer()->isVisible();
+	}
+
+	return false;
+}
+
+
+//============================================================================
+CDockWidget* CAutoHideTab::dockWidget() const
+{
+	return d->DockWidget;
+}
+
+
+//============================================================================
+void CAutoHideTab::setDockWidget(CDockWidget* DockWidget)
+{
+	if (!DockWidget)
+	{
+		return;
+	}
+	d->DockWidget = DockWidget;
+	setText(DockWidget->windowTitle());
+	setIcon(d->DockWidget->icon());
+	setToolTip(DockWidget->windowTitle());
+}
+
+
+//============================================================================
+bool CAutoHideTab::event(QEvent* event)
+{
+	if (!CDockManager::testAutoHideConfigFlag(CDockManager::AutoHideShowOnMouseOver))
+	{
+		return Super::event(event);
+	}
+
+	switch (event->type())
+	{
+	case QEvent::Enter:
+	case QEvent::Leave:
+		 d->forwardEventToDockContainer(event);
+		 break;
+
+	case QEvent::MouseButtonPress:
+		 // If AutoHideShowOnMouseOver is active, then the showing is triggered
+		 // by a MousePressEvent sent to this tab. To prevent accidental hiding
+		 // of the tab by a mouse click, we wait at least 500 ms before we accept
+		 // the mouse click
+		 if (!event->spontaneous())
+		 {
+			 d->TimeSinceHoverMousePress.restart();
+			 d->forwardEventToDockContainer(event);
+		 }
+		 else if (d->TimeSinceHoverMousePress.hasExpired(500))
+		 {
+			 d->forwardEventToDockContainer(event);
+		 }
+		 break;
+
+	default:
+		break;
+	}
+	return Super::event(event);
+}
+
+//============================================================================
+bool CAutoHideTab::iconOnly() const
+{
+	return CDockManager::testAutoHideConfigFlag(CDockManager::AutoHideSideBarsIconOnly) && !icon().isNull();
+}
+
+}

src/AutoHideTab.h

@@ -0,0 +1,141 @@
+#ifndef AutoHideTabH
+#define AutoHideTabH
+/*******************************************************************************
+** Qt Advanced Docking System
+** Copyright (C) 2017 Uwe Kindler
+**
+** This library is free software; you can redistribute it and/or
+** modify it under the terms of the GNU Lesser General Public
+** License as published by the Free Software Foundation; either
+** version 2.1 of the License, or (at your option) any later version.
+**
+** This library is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+** Lesser General Public License for more details.
+**
+** You should have received a copy of the GNU Lesser General Public
+** License along with this library; If not, see <http://www.gnu.org/licenses/>.
+******************************************************************************/
+
+
+//============================================================================
+/// \file   AutoHideTab.h
+/// \author Syarif Fakhri
+/// \date   05.09.2022
+/// \brief  Declaration of CAutoHideTab class
+//============================================================================
+
+//============================================================================
+//                                   INCLUDES
+//============================================================================
+#include "PushButton.h"
+
+#include "ads_globals.h"
+
+namespace ads
+{
+struct AutoHideTabPrivate;
+class CDockWidget;
+class CAutoHideSideBar;
+class CDockWidgetTab;
+class DockContainerWidgetPrivate;
+
+/**
+ * A dock widget Side tab that shows a title or an icon.
+ * The dock widget tab is shown in the side tab bar to switch between
+ * pinned dock widgets
+ */
+class ADS_EXPORT CAutoHideTab : public CPushButton
+{
+    Q_OBJECT
+
+    Q_PROPERTY(int sideBarLocation READ sideBarLocation)
+    Q_PROPERTY(Qt::Orientation orientation READ orientation)
+	Q_PROPERTY(bool activeTab READ isActiveTab)
+	Q_PROPERTY(bool iconOnly READ iconOnly)
+
+private:    
+	AutoHideTabPrivate* d; ///< private data (pimpl)
+    friend struct AutoHideTabPrivate;
+	friend class CDockWidget;
+	friend class CAutoHideDockContainer;
+	friend class CAutoHideSideBar;
+	friend class CDockAreaWidget;
+	friend class CDockContainerWidget;
+	friend DockContainerWidgetPrivate;
+
+
+protected:
+	void setSideBar(CAutoHideSideBar *SideTabBar);
+	void removeFromSideBar();
+	virtual bool event(QEvent* event) override;
+
+public:
+    using Super = CPushButton;
+
+	/**
+	 * Default Constructor
+	 * param[in] DockWidget The dock widget this title bar belongs to
+	 * param[in] parent The parent widget of this title bar
+	 */
+	CAutoHideTab(QWidget* parent = nullptr);
+
+	/**
+	 * Virtual Destructor
+	 */
+	virtual ~CAutoHideTab();
+
+	/**
+	 * Update stylesheet style if a property changes
+	 */
+	void updateStyle();
+
+	/**
+	 * Getter for side tab bar area property
+	 */
+	SideBarLocation sideBarLocation() const;
+
+	/**
+	 * Set orientation vertical or horizontal
+	 */
+	void setOrientation(Qt::Orientation Orientation);
+
+	/**
+	 * Returns the current orientation
+	 */
+	Qt::Orientation orientation() const;
+
+	/**
+	 * Returns true, if this is the active tab. The tab is active if the auto
+	 * hide widget is visible
+	 */
+	bool isActiveTab() const;
+
+	/**
+	 * returns the dock widget this belongs to
+	 */
+	CDockWidget* dockWidget() const;
+
+	/**
+	 * Sets the dock widget that is controlled by this tab
+	 */
+	void setDockWidget(CDockWidget* DockWidget);
+
+	/**
+	 * Returns true if the auto hide config flag AutoHideSideBarsIconOnly
+	 * is set and if the tab has an icon - that means the icon is not null
+	 */
+	bool iconOnly() const;
+
+	/**
+	 * Returns the side bar that contains this tab or a nullptr if the tab is
+	 * not in a side bar
+	 */
+	CAutoHideSideBar* sideBar() const;
+}; // class AutoHideTab
+}
+ // namespace ads
+//-----------------------------------------------------------------------------
+
+#endif

src/CMakeLists.txt

@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.5)
 project(QtAdvancedDockingSystem LANGUAGES CXX VERSION ${VERSION_SHORT})
 find_package(QT NAMES Qt6 Qt5 COMPONENTS Core REQUIRED)
-find_package(Qt${QT_VERSION_MAJOR} 5.5 COMPONENTS Core Gui Widgets REQUIRED)
+find_package(Qt${QT_VERSION_MAJOR} COMPONENTS Core Gui Widgets REQUIRED)
 if (UNIX AND NOT APPLE)
     include_directories(${Qt${QT_VERSION_MAJOR}Gui_PRIVATE_INCLUDE_DIRS})
 endif()
@@ -27,6 +27,11 @@ set(ads_SRCS
     FloatingDragPreview.cpp
     IconProvider.cpp
     DockComponentsFactory.cpp
+    AutoHideSideBar.cpp
+    AutoHideTab.cpp
+    AutoHideDockContainer.cpp
+    PushButton.cpp
+	ResizeHandle.cpp
     ads.qrc
 )
 set(ads_HEADERS
@@ -48,6 +53,11 @@ set(ads_HEADERS
     FloatingDragPreview.h
     IconProvider.h
     DockComponentsFactory.h
+    AutoHideSideBar.h
+    AutoHideTab.h
+    AutoHideDockContainer.h
+    PushButton.h
+	ResizeHandle.h
 )
 add_compile_options("$<$<CXX_COMPILER_ID:MSVC>:/utf-8>")
 if (UNIX AND NOT APPLE)
@@ -61,14 +71,18 @@ else()
     add_library(qtadvanceddocking SHARED ${ads_SRCS} ${ads_HEADERS})
     target_compile_definitions(qtadvanceddocking PRIVATE ADS_SHARED_EXPORT)
 endif()
+
+add_library(ads::qtadvanceddocking ALIAS qtadvanceddocking)
+
 target_link_libraries(qtadvanceddocking PUBLIC Qt${QT_VERSION_MAJOR}::Core 
                                                Qt${QT_VERSION_MAJOR}::Gui 
                                                Qt${QT_VERSION_MAJOR}::Widgets)
+if (UNIX AND NOT APPLE)
+  target_link_libraries(qtadvanceddocking PUBLIC xcb)
+endif()
 set_target_properties(qtadvanceddocking PROPERTIES
     AUTOMOC ON
     AUTORCC ON
-    CXX_STANDARD 14
-    CXX_STANDARD_REQUIRED ON
     CXX_EXTENSIONS OFF
     VERSION ${VERSION_SHORT}
     EXPORT_NAME "qtadvanceddocking"
@@ -76,6 +90,16 @@ set_target_properties(qtadvanceddocking PROPERTIES
     LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/${ads_PlatformDir}/lib"
     RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/${ads_PlatformDir}/bin"
 )
+if(QT_VERSION_MAJOR STREQUAL "5")
+    set_target_properties(qtadvanceddocking PROPERTIES
+        CXX_STANDARD 14
+        CXX_STANDARD_REQUIRED ON)
+elseif(QT_VERSION_MAJOR STREQUAL "6")
+    set_target_properties(qtadvanceddocking PROPERTIES
+        CXX_STANDARD 17
+        CXX_STANDARD_REQUIRED ON)
+endif()
+
 include(CMakePackageConfigHelpers)
 write_basic_package_version_file(
     "qtadvanceddockingConfigVersion.cmake"
@@ -87,9 +111,9 @@ install(FILES ${ads_HEADERS}
     COMPONENT headers
 )
 install(FILES
-    "${CMAKE_SOURCE_DIR}/LICENSE"
-    "${CMAKE_SOURCE_DIR}/gnu-lgpl-v2.1.md"
-    DESTINATION license
+    "${CMAKE_CURRENT_SOURCE_DIR}/../LICENSE"
+    "${CMAKE_CURRENT_SOURCE_DIR}/../gnu-lgpl-v2.1.md"
+    DESTINATION license/ads
     COMPONENT license
 )
 install(TARGETS qtadvanceddocking

src/DockAreaTabBar.cpp

@@ -203,7 +203,7 @@ void CDockAreaTabBar::insertTab(int Index, CDockWidgetTab* Tab)
 	connect(Tab, SIGNAL(clicked()), this, SLOT(onTabClicked()));
 	connect(Tab, SIGNAL(closeRequested()), this, SLOT(onTabCloseRequested()));
 	connect(Tab, SIGNAL(closeOtherTabsRequested()), this, SLOT(onCloseOtherTabsRequested()));
-	connect(Tab, SIGNAL(moved(const QPoint&)), this, SLOT(onTabWidgetMoved(const QPoint&)));
+	connect(Tab, SIGNAL(moved(QPoint)), this, SLOT(onTabWidgetMoved(QPoint)));
 	connect(Tab, SIGNAL(elidedChanged(bool)), this, SIGNAL(elidedChanged(bool)));
 	Tab->installEventFilter(this);
 	Q_EMIT tabInserted(Index);

src/DockAreaTitleBar.cpp

@@ -38,6 +38,7 @@
 #include <QMouseEvent>
 #include <QDebug>
 #include <QPointer>
+#include <QApplication>
 
 #include "DockAreaTitleBar_p.h"
 #include "ads_globals.h"
@@ -49,14 +50,17 @@
 #include "DockWidget.h"
 #include "DockWidgetTab.h"
 #include "DockAreaTabBar.h"
-#include "IconProvider.h"
 #include "DockComponentsFactory.h"
 #include "DockFocusController.h"
+#include "ElidingLabel.h"
+#include "AutoHideDockContainer.h"
+#include "IconProvider.h"
 
 #include <iostream>
 
 namespace ads
 {
+static const char* const LocationProperty = "Location";
 
 /**
  * Private data class of CDockAreaTitleBar class (pimpl)
@@ -65,11 +69,13 @@ struct DockAreaTitleBarPrivate
 {
 	CDockAreaTitleBar* _this;
 	QPointer<tTitleBarButton> TabsMenuButton;
+	QPointer<tTitleBarButton> AutoHideButton;
 	QPointer<tTitleBarButton> UndockButton;
 	QPointer<tTitleBarButton> CloseButton;
 	QBoxLayout* Layout;
 	CDockAreaWidget* DockArea;
 	CDockAreaTabBar* TabBar;
+	CElidingLabel* AutoHideTitleLabel;
 	bool MenuOutdated = true;
 	QMenu* TabsMenu;
 	QList<tTitleBarButton*> DockWidgetActionsButtons;
@@ -89,7 +95,13 @@ struct DockAreaTitleBarPrivate
 	 */
 	void createButtons();
 
+
 	/**
+	 * Creates the auto hide title label, only displayed when the dock area is overlayed
+	 */
+    void createAutoHideTitleLabel();
+
+    /**
 	 * Creates the internal TabBar
 	 */
 	void createTabBar();
@@ -111,6 +123,15 @@ struct DockAreaTitleBarPrivate
 		return CDockManager::testConfigFlag(Flag);
 	}
 
+	/**
+	 * Returns true if the given config flag is set
+	 * Convenience function to ease config flag testing
+	 */
+	static bool testAutoHideConfigFlag(CDockManager::eAutoHideFlag Flag)
+	{
+		return CDockManager::testAutoHideConfigFlag(Flag);
+	}
+
 	/**
 	 * Test function for current drag state
 	 */
@@ -119,7 +140,6 @@ struct DockAreaTitleBarPrivate
 		return this->DragState == dragState;
 	}
 
-
 	/**
 	 * Starts floating
 	 */
@@ -129,6 +149,19 @@ struct DockAreaTitleBarPrivate
 	 * Makes the dock area floating
 	 */
 	IFloatingWidget* makeAreaFloating(const QPoint& Offset, eDragState DragState);
+
+	/**
+	 * Helper function to create and initialize the menu entries for
+	 * the "Auto Hide Group To..." menu
+	 */
+	QAction* createAutoHideToAction(const QString& Title, SideBarLocation Location,
+		QMenu* Menu)
+	{
+		auto Action = Menu->addAction(Title);
+		Action->setProperty("Location", Location);
+		QObject::connect(Action, &QAction::triggered, _this, &CDockAreaTitleBar::onAutoHideToActionClicked);
+		return Action;
+	}
 };// struct DockAreaTitleBarPrivate
 
 //============================================================================
@@ -172,19 +205,25 @@ void DockAreaTitleBarPrivate::createButtons()
 	Layout->addWidget(UndockButton, 0);
 	_this->connect(UndockButton, SIGNAL(clicked()), SLOT(onUndockButtonClicked()));
 
+	// AutoHide Button
+	const auto autoHideEnabled = testAutoHideConfigFlag(CDockManager::AutoHideFeatureEnabled);
+	AutoHideButton = new CTitleBarButton(testAutoHideConfigFlag(CDockManager::DockAreaHasAutoHideButton) && autoHideEnabled);
+	AutoHideButton->setObjectName("dockAreaAutoHideButton");
+	AutoHideButton->setAutoRaise(true);
+	internal::setToolTip(AutoHideButton, _this->titleBarButtonToolTip(TitleBarButtonAutoHide));
+	internal::setButtonIcon(AutoHideButton, QStyle::SP_DialogOkButton, ads::AutoHideIcon);
+	AutoHideButton->setSizePolicy(ButtonSizePolicy);
+	AutoHideButton->setCheckable(testAutoHideConfigFlag(CDockManager::AutoHideButtonCheckable));
+	AutoHideButton->setChecked(false);
+	Layout->addWidget(AutoHideButton, 0);
+	_this->connect(AutoHideButton, SIGNAL(clicked()),  SLOT(onAutoHideButtonClicked()));
+
 	// Close button
 	CloseButton = new CTitleBarButton(testConfigFlag(CDockManager::DockAreaHasCloseButton));
 	CloseButton->setObjectName("dockAreaCloseButton");
 	CloseButton->setAutoRaise(true);
 	internal::setButtonIcon(CloseButton, QStyle::SP_TitleBarCloseButton, ads::DockAreaCloseIcon);
-	if (testConfigFlag(CDockManager::DockAreaCloseButtonClosesTab))
-	{
-		internal::setToolTip(CloseButton, QObject::tr("Close Active Tab"));
-	}
-	else
-	{
-		internal::setToolTip(CloseButton, QObject::tr("Close Group"));
-	}
+    internal::setToolTip(CloseButton, _this->titleBarButtonToolTip(TitleBarButtonClose));
 	CloseButton->setSizePolicy(ButtonSizePolicy);
 	CloseButton->setIconSize(QSize(16, 16));
 	Layout->addWidget(CloseButton, 0);
@@ -192,6 +231,15 @@ void DockAreaTitleBarPrivate::createButtons()
 }
 
 
+//============================================================================
+void DockAreaTitleBarPrivate::createAutoHideTitleLabel()
+{
+	AutoHideTitleLabel = new CElidingLabel("");
+	AutoHideTitleLabel->setObjectName("autoHideTitleLabel");
+	Layout->addWidget(AutoHideTitleLabel);
+}
+
+
 //============================================================================
 void DockAreaTitleBarPrivate::createTabBar()
 {
@@ -249,7 +297,12 @@ IFloatingWidget* DockAreaTitleBarPrivate::makeAreaFloating(const QPoint& Offset,
 //============================================================================
 void DockAreaTitleBarPrivate::startFloating(const QPoint& Offset)
 {
+	if (DockArea->autoHideDockContainer() != nullptr)
+	{
+		DockArea->autoHideDockContainer()->hide();
+	}
 	FloatingWidget = makeAreaFloating(Offset, DraggingFloatingWidget);
+	qApp->postEvent(DockArea, new QEvent((QEvent::Type)internal::DockedWidgetDragStartEvent));
 }
 
 
@@ -268,6 +321,8 @@ CDockAreaTitleBar::CDockAreaTitleBar(CDockAreaWidget* parent) :
 	setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
 
 	d->createTabBar();
+	d->createAutoHideTitleLabel();
+	d->AutoHideTitleLabel->setVisible(false); // Default hidden
 	d->Layout->addWidget(new CSpacerWidget(this));
 	d->createButtons();
 
@@ -373,6 +428,11 @@ void CDockAreaTitleBar::onUndockButtonClicked()
 {
 	if (d->DockArea->features().testFlag(CDockWidget::DockWidgetFloatable))
 	{
+        if (d->DockArea->autoHideDockContainer())
+        {
+            d->DockArea->autoHideDockContainer()->cleanupAndDelete();
+        }
+
 		d->makeAreaFloating(mapFromGlobal(QCursor::pos()), DraggingInactive);
 	}
 }
@@ -390,7 +450,13 @@ void CDockAreaTitleBar::onTabsMenuActionTriggered(QAction* Action)
 //============================================================================
 void CDockAreaTitleBar::updateDockWidgetActionsButtons()
 {
-	CDockWidget* DockWidget = d->TabBar->currentTab()->dockWidget();
+	auto Tab = d->TabBar->currentTab();
+	if (!Tab)
+	{
+		return;
+	}
+
+	CDockWidget* DockWidget = Tab->dockWidget();
 	if (!d->DockWidgetActionsButtons.isEmpty())
 	{
 		for (auto Button : d->DockWidgetActionsButtons)
@@ -439,6 +505,36 @@ void CDockAreaTitleBar::onCurrentTabChanged(int Index)
 }
 
 
+//============================================================================
+void CDockAreaTitleBar::onAutoHideButtonClicked()
+{
+	if (CDockManager::testAutoHideConfigFlag(CDockManager::AutoHideButtonTogglesArea)
+	 || qApp->keyboardModifiers().testFlag(Qt::ControlModifier))
+	{
+		d->DockArea->toggleAutoHide();
+	}
+	else
+	{
+		d->DockArea->currentDockWidget()->toggleAutoHide();
+	}
+}
+
+
+//============================================================================
+void CDockAreaTitleBar::onAutoHideDockAreaActionClicked()
+{
+	d->DockArea->toggleAutoHide();
+}
+
+
+//============================================================================
+void CDockAreaTitleBar::onAutoHideToActionClicked()
+{
+	int Location = sender()->property(LocationProperty).toInt();
+	d->DockArea->toggleAutoHide((SideBarLocation)Location);
+}
+
+
 //============================================================================
 QAbstractButton* CDockAreaTitleBar::button(TitleBarButton which) const
 {
@@ -447,12 +543,20 @@ QAbstractButton* CDockAreaTitleBar::button(TitleBarButton which) const
 	case TitleBarButtonTabsMenu: return d->TabsMenuButton;
 	case TitleBarButtonUndock: return d->UndockButton;
 	case TitleBarButtonClose: return d->CloseButton;
+	case TitleBarButtonAutoHide: return d->AutoHideButton;
 	default:
 		return nullptr;
 	}
 }
 
 
+//============================================================================
+CElidingLabel* CDockAreaTitleBar::autoHideTitleLabel() const
+{
+	return d->AutoHideTitleLabel;
+}
+
+
 //============================================================================
 void CDockAreaTitleBar::setVisible(bool Visible)
 {
@@ -472,7 +576,6 @@ void CDockAreaTitleBar::mousePressEvent(QMouseEvent* ev)
 
 		if (CDockManager::testConfigFlag(CDockManager::FocusHighlighting))
 		{
-			//d->TabBar->currentTab()->setFocus(Qt::OtherFocusReason);
 			d->dockManager()->dockFocusController()->setDockWidgetTabFocused(d->TabBar->currentTab());
 		}
 		return;
@@ -523,7 +626,8 @@ void CDockAreaTitleBar::mouseMoveEvent(QMouseEvent* ev)
 	// sense to move it to a new floating widget and leave this one
 	// empty
 	if (d->DockArea->dockContainer()->isFloating()
-	 && d->DockArea->dockContainer()->visibleDockAreaCount() == 1)
+	 && d->DockArea->dockContainer()->visibleDockAreaCount() == 1 
+     && !d->DockArea->isAutoHide())
 	{
 		return;
 	}
@@ -542,7 +646,7 @@ void CDockAreaTitleBar::mouseMoveEvent(QMouseEvent* ev)
 	int DragDistance = (d->DragStartMousePos - ev->pos()).manhattanLength();
 	if (DragDistance >= CDockManager::startDragDistance())
 	{
-        ADS_PRINT("CDockAreaTitlBar::startFloating");
+        ADS_PRINT("CDockAreaTitleBar::startFloating");
 		d->startFloating(d->DragStartMousePos);
 		auto Overlay = d->DockArea->dockManager()->containerOverlay();
 		Overlay->setAllowedAreas(OuterDockAreas);
@@ -567,6 +671,11 @@ void CDockAreaTitleBar::mouseDoubleClickEvent(QMouseEvent *event)
 	{
 		return;
 	}
+	if (d->DockArea->autoHideDockContainer())
+	{
+		d->DockArea->autoHideDockContainer()->cleanupAndDelete();
+	}
+
 	d->makeAreaFloating(event->pos(), DraggingInactive);
 }
 
@@ -580,13 +689,39 @@ void CDockAreaTitleBar::contextMenuEvent(QContextMenuEvent* ev)
 		return;
 	}
 
+	const bool isAutoHide = d->DockArea->isAutoHide();
+	const bool isTopLevelArea = d->DockArea->isTopLevelArea();
+	QAction* Action;
 	QMenu Menu(this);
-	auto Action = Menu.addAction(tr("Detach Group"), this, SLOT(onUndockButtonClicked()));
-	Action->setEnabled(d->DockArea->features().testFlag(CDockWidget::DockWidgetFloatable));
-	Menu.addSeparator();
-	Action = Menu.addAction(tr("Close Group"), this, SLOT(onCloseButtonClicked()));
+	if (!isTopLevelArea)
+	{
+		Action = Menu.addAction(isAutoHide ? tr("Detach") : tr("Detach Group"),
+			this, SLOT(onUndockButtonClicked()));
+		Action->setEnabled(d->DockArea->features().testFlag(CDockWidget::DockWidgetFloatable));
+		if (CDockManager::testAutoHideConfigFlag(CDockManager::AutoHideFeatureEnabled))
+		{
+			Action = Menu.addAction(isAutoHide ? tr("Unpin (Dock)") : tr("Pin Group"), this, SLOT(onAutoHideDockAreaActionClicked()));
+			auto AreaIsPinnable = d->DockArea->features().testFlag(CDockWidget::DockWidgetPinnable);
+			Action->setEnabled(AreaIsPinnable);
+
+			if (!isAutoHide)
+			{
+				auto menu = Menu.addMenu(tr("Pin Group To..."));
+				menu->setEnabled(AreaIsPinnable);
+				d->createAutoHideToAction(tr("Top"), SideBarTop, menu);
+				d->createAutoHideToAction(tr("Left"), SideBarLeft, menu);
+				d->createAutoHideToAction(tr("Right"), SideBarRight, menu);
+				d->createAutoHideToAction(tr("Bottom"), SideBarBottom, menu);
+			}
+		}
+		Menu.addSeparator();
+	}
+	Action = Menu.addAction(isAutoHide ? tr("Close") : tr("Close Group"), this, SLOT(onCloseButtonClicked()));
 	Action->setEnabled(d->DockArea->features().testFlag(CDockWidget::DockWidgetClosable));
-	Menu.addAction(tr("Close Other Groups"), d->DockArea, SLOT(closeOtherAreas()));
+	if (!isAutoHide && !isTopLevelArea)
+	{
+		Action = Menu.addAction(tr("Close Other Groups"), d->DockArea, SLOT(closeOtherAreas()));
+	}
 	Menu.exec(ev->globalPos());
 }
 
@@ -604,6 +739,50 @@ int CDockAreaTitleBar::indexOf(QWidget *widget) const
 	return d->Layout->indexOf(widget);
 }
 
+//============================================================================
+QString CDockAreaTitleBar::titleBarButtonToolTip(TitleBarButton Button) const
+{
+	switch (Button)
+	{
+	case TitleBarButtonAutoHide:
+		 if (d->DockArea->isAutoHide())
+		 {
+			 return tr("Unpin (Dock)");
+		 }
+
+		 if (CDockManager::testAutoHideConfigFlag(CDockManager::AutoHideButtonTogglesArea))
+		 {
+			 return tr("Pin Group");
+		 }
+		 else
+		 {
+			 return tr("Pin Active Tab (Press Ctrl to Pin Group)");
+		 }
+		 break;
+
+	case TitleBarButtonClose:
+		if (d->DockArea->isAutoHide())
+		{
+			return tr("Close");
+		}
+
+		if (CDockManager::testConfigFlag(CDockManager::DockAreaCloseButtonClosesTab))
+		{
+			return tr("Close Active Tab");
+		}
+		else
+		{
+			return tr("Close Group");
+		}
+	    break;
+
+	default:
+		break;
+	}
+
+	return QString();
+}
+
 //============================================================================
 CTitleBarButton::CTitleBarButton(bool visible, QWidget* parent)
 	: tTitleBarButton(parent),

src/DockAreaTitleBar.h

@@ -41,6 +41,7 @@ namespace ads
 class CDockAreaTabBar;
 class CDockAreaWidget;
 struct DockAreaTitleBarPrivate;
+class CElidingLabel;
 
 /**
  * Title bar of a dock area.
@@ -60,9 +61,12 @@ private Q_SLOTS:
 	void onUndockButtonClicked();
 	void onTabsMenuActionTriggered(QAction* Action);
 	void onCurrentTabChanged(int Index);
+	void onAutoHideButtonClicked();
+	void onAutoHideDockAreaActionClicked();
+	void onAutoHideToActionClicked();
 
 protected:
-		/**
+    /**
 	 * Stores mouse position to detect dragging
 	 */
 	virtual void mousePressEvent(QMouseEvent* ev) override;
@@ -119,6 +123,11 @@ public:
 	 */
 	QAbstractButton* button(TitleBarButton which) const;
 
+	/**
+	 * Returns the auto hide title label, used when the dock area is expanded and auto hidden
+	 */
+	CElidingLabel* autoHideTitleLabel() const;
+
 	/**
 	 * Updates the visibility of the dock widget actions in the title bar
 	 */
@@ -148,6 +157,12 @@ public:
 	 */
 	int indexOf(QWidget *widget) const;
 
+	/**
+	 * Close group tool tip based on the current state
+	 * Auto hide widgets can only have one dock widget so it does not make sense for the tooltip to show close group
+	 */
+	QString titleBarButtonToolTip(TitleBarButton Button) const;
+
 Q_SIGNALS:
 	/**
 	 * This signal is emitted if a tab in the tab bar is clicked by the user

src/DockAreaWidget.cpp

@@ -28,22 +28,21 @@
 //============================================================================
 //                                   INCLUDES
 //============================================================================
+#include <AutoHideDockContainer.h>
+#include <AutoHideTab.h>
 #include "DockAreaWidget.h"
 
 #include <QStackedLayout>
 #include <QScrollBar>
-#include <QScrollArea>
 #include <QWheelEvent>
 #include <QStyle>
 #include <QPushButton>
 #include <QDebug>
 #include <QMenu>
-#include <QSplitter>
 #include <QXmlStreamWriter>
-#include <QVector>
 #include <QList>
 
-
+#include "ElidingLabel.h"
 #include "DockContainerWidget.h"
 #include "DockWidget.h"
 #include "FloatingDockContainer.h"
@@ -54,6 +53,7 @@
 #include "DockAreaTitleBar.h"
 #include "DockComponentsFactory.h"
 #include "DockWidgetTab.h"
+#include "DockingStateReader.h"
 
 
 namespace ads
@@ -61,6 +61,15 @@ namespace ads
 static const char* const INDEX_PROPERTY = "index";
 static const char* const ACTION_PROPERTY = "action";
 
+/**
+ * Check, if auto hide is enabled
+ */
+static bool isAutoHideFeatureEnabled()
+{
+	return CDockManager::testAutoHideConfigFlag(CDockManager::AutoHideFeatureEnabled);
+}
+
+
 /**
  * Internal dock area layout mimics stack layout but only inserts the current
  * widget into the internal QLayout object.
@@ -249,6 +258,7 @@ struct DockAreaWidgetPrivate
 	DockAreaLayout*		ContentsLayout	= nullptr;
 	CDockAreaTitleBar*	TitleBar		= nullptr;
 	CDockManager*		DockManager		= nullptr;
+	CAutoHideDockContainer* AutoHideDockContainer = nullptr;
 	bool UpdateTitleBarButtons = false;
 	DockWidgetAreas		AllowedAreas	= DefaultAllowedAreas;
 	QSize MinSizeHint;
@@ -310,6 +320,11 @@ struct DockAreaWidgetPrivate
 	 */
 	void updateTitleBarButtonStates();
 
+	/**
+	 * Udpates the enable state of the close and detach button
+	 */
+	void updateTitleBarButtonVisibility(bool isTopLevel);
+
 	/**
 	 * Scans all contained dock widgets for the max. minimum size hint
 	 */
@@ -358,11 +373,40 @@ void DockAreaWidgetPrivate::updateTitleBarButtonStates()
 		_this->features().testFlag(CDockWidget::DockWidgetClosable));
 	TitleBar->button(TitleBarButtonUndock)->setEnabled(
 		_this->features().testFlag(CDockWidget::DockWidgetFloatable));
+	TitleBar->button(TitleBarButtonAutoHide)->setEnabled(
+		_this->features().testFlag(CDockWidget::DockWidgetPinnable));
 	TitleBar->updateDockWidgetActionsButtons();
 	UpdateTitleBarButtons = false;
 }
 
 
+//============================================================================
+void DockAreaWidgetPrivate::updateTitleBarButtonVisibility(bool IsTopLevel)
+{
+	auto *const container = _this->dockContainer();
+	if (!container)
+	{
+		return;
+	}
+
+	if (IsTopLevel)
+	{
+		TitleBar->button(TitleBarButtonClose)->setVisible(!container->isFloating());
+		TitleBar->button(TitleBarButtonAutoHide)->setVisible(!container->isFloating());
+        // Undock and tabs should never show when auto hidden
+		TitleBar->button(TitleBarButtonUndock)->setVisible(!container->isFloating() && !_this->isAutoHide());
+        TitleBar->button(TitleBarButtonTabsMenu)->setVisible(!_this->isAutoHide());
+	}
+	else
+	{
+		TitleBar->button(TitleBarButtonClose)->setVisible(true);
+		TitleBar->button(TitleBarButtonAutoHide)->setVisible(true);
+		TitleBar->button(TitleBarButtonUndock)->setVisible(!_this->isAutoHide());
+        TitleBar->button(TitleBarButtonTabsMenu)->setVisible(!_this->isAutoHide());
+	}
+}
+
+
 //============================================================================
 CDockAreaWidget::CDockAreaWidget(CDockManager* DockManager, CDockContainerWidget* parent) :
 	QFrame(parent),
@@ -404,6 +448,26 @@ CDockContainerWidget* CDockAreaWidget::dockContainer() const
 	return internal::findParent<CDockContainerWidget*>(this);
 }
 
+//============================================================================
+CAutoHideDockContainer* CDockAreaWidget::autoHideDockContainer() const
+{
+	return d->AutoHideDockContainer;
+}
+
+//============================================================================
+bool CDockAreaWidget::isAutoHide() const
+{
+	return d->AutoHideDockContainer != nullptr;
+}
+
+//============================================================================
+void CDockAreaWidget::setAutoHideDockContainer(CAutoHideDockContainer* AutoHideDockContainer)
+{
+	d->AutoHideDockContainer = AutoHideDockContainer;
+	updateAutoHideButtonCheckState();
+	updateTitleBarButtonsToolTips();
+}
+
 
 //============================================================================
 void CDockAreaWidget::addDockWidget(CDockWidget* DockWidget)
@@ -416,6 +480,10 @@ void CDockAreaWidget::addDockWidget(CDockWidget* DockWidget)
 void CDockAreaWidget::insertDockWidget(int index, CDockWidget* DockWidget,
 	bool Activate)
 {
+	if (index < 0 || index > d->ContentsLayout->count())
+	{
+		index = d->ContentsLayout->count();
+	}
 	d->ContentsLayout->insertWidget(index, DockWidget);
 	DockWidget->setDockArea(this);
 	DockWidget->tabWidget()->setDockAreaWidget(this);
@@ -426,12 +494,14 @@ void CDockAreaWidget::insertDockWidget(int index, CDockWidget* DockWidget,
 	d->tabBar()->insertTab(index, TabWidget);
 	d->tabBar()->blockSignals(false);
 	TabWidget->setVisible(!DockWidget->isClosed());
+	d->TitleBar->autoHideTitleLabel()->setText(DockWidget->windowTitle());
 	DockWidget->setProperty(INDEX_PROPERTY, index);
 	d->MinSizeHint.setHeight(qMax(d->MinSizeHint.height(), DockWidget->minimumSizeHint().height()));
 	d->MinSizeHint.setWidth(qMax(d->MinSizeHint.width(), DockWidget->minimumSizeHint().width()));
 	if (Activate)
 	{
 		setCurrentIndex(index);
+		DockWidget->setClosedState(false); // Set current index can show the widget without changing the close state, added to keep the close state consistent
 	}
 	// If this dock area is hidden, then we need to make it visible again
 	// by calling DockWidget->toggleViewInternal(true);
@@ -448,6 +518,20 @@ void CDockAreaWidget::insertDockWidget(int index, CDockWidget* DockWidget,
 void CDockAreaWidget::removeDockWidget(CDockWidget* DockWidget)
 {
     ADS_PRINT("CDockAreaWidget::removeDockWidget");
+    if (!DockWidget)
+    {
+    	return;
+    }
+
+
+    // If this dock area is in a auto hide container, then we can delete
+    // the auto hide container now
+    if (isAutoHide())
+    {
+    	autoHideDockContainer()->cleanupAndDelete();
+    	return;
+    }
+
     auto CurrentDockWidget = currentDockWidget();
   	auto NextOpenDockWidget = (DockWidget == CurrentDockWidget) ? nextOpenDockWidget(DockWidget) : nullptr;
 
@@ -530,6 +614,10 @@ void CDockAreaWidget::hideAreaWithNoVisibleContent()
 	{
 		FloatingWidget->hide();
 	}
+	if (isAutoHide())
+	{
+		autoHideDockContainer()->hide();
+	}
 }
 
 
@@ -538,7 +626,7 @@ void CDockAreaWidget::onTabCloseRequested(int Index)
 {
     ADS_PRINT("CDockAreaWidget::onTabCloseRequested " << Index);
     auto* DockWidget = dockWidget(Index);
-    if (DockWidget->features().testFlag(CDockWidget::DockWidgetDeleteOnClose))
+    if (DockWidget->features().testFlag(CDockWidget::DockWidgetDeleteOnClose) || DockWidget->features().testFlag(CDockWidget::CustomCloseHandling))
     {
     	DockWidget->closeDockWidgetInternal();
     }
@@ -584,6 +672,7 @@ void CDockAreaWidget::internalSetCurrentDockWidget(CDockWidget* DockWidget)
 	}
 
 	setCurrentIndex(Index);
+	DockWidget->setClosedState(false); // Set current index can show the widget without changing the close state, added to keep the close state consistent
 }
 
 
@@ -747,17 +836,27 @@ void CDockAreaWidget::updateTitleBarVisibility()
 		return;
 	}
 
-    if (CDockManager::testConfigFlag(CDockManager::AlwaysShowTabs))
+    if (!d->TitleBar)
     {
-        return;
+    	return;
     }
 
-	if (d->TitleBar)
-	{
+    bool IsAutoHide = isAutoHide();
+    if (!CDockManager::testConfigFlag(CDockManager::AlwaysShowTabs))
+    {
 		bool Hidden = Container->hasTopLevelDockWidget() && (Container->isFloating()
 			|| CDockManager::testConfigFlag(CDockManager::HideSingleCentralWidgetTitleBar));
 		Hidden |= (d->Flags.testFlag(HideSingleWidgetTitleBar) && openDockWidgetsCount() == 1);
+		Hidden &= !IsAutoHide; // Titlebar must always be visible when auto hidden so it can be dragged
 		d->TitleBar->setVisible(!Hidden);
+    }
+
+	if (isAutoHideFeatureEnabled())
+	{
+		auto tabBar = d->TitleBar->tabBar();
+		tabBar->setVisible(!IsAutoHide);  // Never show tab bar when auto hidden
+		d->TitleBar->autoHideTitleLabel()->setVisible(IsAutoHide);  // Always show when auto hidden, never otherwise
+		updateTitleBarButtonVisibility(Container->topLevelDockArea() == this);
 	}
 }
 
@@ -772,6 +871,32 @@ void CDockAreaWidget::markTitleBarMenuOutdated()
 }
 
 
+//============================================================================
+void CDockAreaWidget::updateAutoHideButtonCheckState()
+{
+	auto autoHideButton = titleBarButton(TitleBarButtonAutoHide);
+	autoHideButton->blockSignals(true);
+	autoHideButton->setChecked(isAutoHide());
+	autoHideButton->blockSignals(false);
+}
+
+
+//============================================================================
+void CDockAreaWidget::updateTitleBarButtonVisibility(bool IsTopLevel) const
+{
+	d->updateTitleBarButtonVisibility(IsTopLevel);
+}
+
+
+//============================================================================
+void CDockAreaWidget::updateTitleBarButtonsToolTips()
+{
+	internal::setToolTip(titleBarButton(TitleBarButtonClose),
+		titleBar()->titleBarButtonToolTip(TitleBarButtonClose));
+	internal::setToolTip(titleBarButton(TitleBarButtonAutoHide),
+		titleBar()->titleBarButtonToolTip(TitleBarButtonAutoHide));
+}
+
 
 //============================================================================
 void CDockAreaWidget::saveState(QXmlStreamWriter& s) const
@@ -781,8 +906,7 @@ void CDockAreaWidget::saveState(QXmlStreamWriter& s) const
 	auto CurrentDockWidget = currentDockWidget();
 	QString Name = CurrentDockWidget ? CurrentDockWidget->objectName() : "";
 	s.writeAttribute("Current", Name);
-	// To keep the saved XML data small, we only save the allowed areas and the
-	// dock area flags if the values are different from the default values
+
 	if (d->AllowedAreas != DefaultAllowedAreas)
 	{
 		s.writeAttribute("AllowedAreas", QString::number(d->AllowedAreas, 16));
@@ -802,6 +926,103 @@ void CDockAreaWidget::saveState(QXmlStreamWriter& s) const
 }
 
 
+//============================================================================
+bool CDockAreaWidget::restoreState(CDockingStateReader& s, CDockAreaWidget*& CreatedWidget,
+		bool Testing, CDockContainerWidget* Container)
+{
+	bool Ok;
+#ifdef ADS_DEBUG_PRINT
+	int Tabs = s.attributes().value("Tabs").toInt(&Ok);
+	if (!Ok)
+	{
+		return false;
+	}
+#endif
+
+	QString CurrentDockWidget = s.attributes().value("Current").toString();
+    ADS_PRINT("Restore NodeDockArea Tabs: " << Tabs << " Current: "
+            << CurrentDockWidget);
+
+    auto DockManager = Container->dockManager();
+	CDockAreaWidget* DockArea = nullptr;
+	if (!Testing)
+	{
+		DockArea = new CDockAreaWidget(DockManager, Container);
+		const auto AllowedAreasAttribute = s.attributes().value("AllowedAreas");
+		if (!AllowedAreasAttribute.isEmpty())
+		{
+			DockArea->setAllowedAreas((DockWidgetArea)AllowedAreasAttribute.toInt(nullptr, 16));
+		}
+
+		const auto FlagsAttribute = s.attributes().value("Flags");
+		if (!FlagsAttribute.isEmpty())
+		{
+			DockArea->setDockAreaFlags((CDockAreaWidget::DockAreaFlags)FlagsAttribute.toInt(nullptr, 16));
+		}
+	}
+
+	while (s.readNextStartElement())
+	{
+        if (s.name() != QLatin1String("Widget"))
+		{
+			continue;
+		}
+
+		auto ObjectName = s.attributes().value("Name");
+		if (ObjectName.isEmpty())
+		{
+			return false;
+		}
+
+		bool Closed = s.attributes().value("Closed").toInt(&Ok);
+		if (!Ok)
+		{
+			return false;
+		}
+
+		s.skipCurrentElement();
+		CDockWidget* DockWidget = DockManager->findDockWidget(ObjectName.toString());
+		if (!DockWidget || Testing)
+		{
+			continue;
+		}
+
+        ADS_PRINT("Dock Widget found - parent " << DockWidget->parent());
+        if (DockWidget->autoHideDockContainer())
+        {
+        	DockWidget->autoHideDockContainer()->cleanupAndDelete();
+        }
+
+		// We hide the DockArea here to prevent the short display (the flashing)
+		// of the dock areas during application startup
+		DockArea->hide();
+        DockArea->addDockWidget(DockWidget);
+		DockWidget->setToggleViewActionChecked(!Closed);
+		DockWidget->setClosedState(Closed);
+		DockWidget->setProperty(internal::ClosedProperty, Closed);
+		DockWidget->setProperty(internal::DirtyProperty, false);
+	}
+
+	if (Testing)
+	{
+		return true;
+	}
+
+	if (!DockArea->dockWidgetsCount())
+	{
+		delete DockArea;
+		DockArea = nullptr;
+	}
+	else
+	{
+		DockArea->setProperty("currentDockWidget", CurrentDockWidget);
+	}
+
+	CreatedWidget = DockArea;
+	return true;
+}
+
+
 //============================================================================
 CDockWidget* CDockAreaWidget::nextOpenDockWidget(CDockWidget* DockWidget) const
 {
@@ -956,9 +1177,13 @@ QAbstractButton* CDockAreaWidget::titleBarButton(TitleBarButton which) const
 void CDockAreaWidget::closeArea()
 {
 	// If there is only one single dock widget and this widget has the
-	// DeleteOnClose feature, then we delete the dock widget now
+	// DeleteOnClose feature or CustomCloseHandling, then we delete the dock widget now;
+	// in the case of CustomCloseHandling, the CDockWidget class will emit its
+	// closeRequested signal and not actually delete unless the signal is handled in a way that deletes it
 	auto OpenDockWidgets = openedDockWidgets();
-    if (OpenDockWidgets.count() == 1 && OpenDockWidgets[0]->features().testFlag(CDockWidget::DockWidgetDeleteOnClose))
+    if (OpenDockWidgets.count() == 1 &&
+			(OpenDockWidgets[0]->features().testFlag(CDockWidget::DockWidgetDeleteOnClose) || OpenDockWidgets[0]->features().testFlag(CDockWidget::CustomCloseHandling))
+			&& !isAutoHide())
 	{
 		OpenDockWidgets[0]->closeDockWidgetInternal();
 	}
@@ -966,15 +1191,172 @@ void CDockAreaWidget::closeArea()
 	{
         for (auto DockWidget : openedDockWidgets())
         {
-            if (DockWidget->features().testFlag(CDockWidget::DockWidgetDeleteOnClose) && DockWidget->features().testFlag(CDockWidget::DockWidgetForceCloseWithArea))
+			if ((DockWidget->features().testFlag(CDockWidget::DockWidgetDeleteOnClose) && DockWidget->features().testFlag(CDockWidget::DockWidgetForceCloseWithArea)) ||
+				DockWidget->features().testFlag(CDockWidget::CustomCloseHandling))
+			{
+				DockWidget->closeDockWidgetInternal();
+			}
+			else if (DockWidget->features().testFlag(CDockWidget::DockWidgetDeleteOnClose) && isAutoHide())
+			{
                 DockWidget->closeDockWidgetInternal();
+			}
             else
+            {
                 DockWidget->toggleView(false);
+            }
         }
     }
 }
 
 
+enum eBorderLocation
+{
+	BorderNone = 0,
+	BorderLeft = 0x01,
+	BorderRight = 0x02,
+	BorderTop = 0x04,
+	BorderBottom = 0x08,
+	BorderVertical = BorderLeft | BorderRight,
+	BorderHorizontal = BorderTop | BorderBottom,
+	BorderTopLeft = BorderTop | BorderLeft,
+	BorderTopRight = BorderTop | BorderRight,
+	BorderBottomLeft = BorderBottom | BorderLeft,
+	BorderBottomRight = BorderBottom | BorderRight,
+	BorderVerticalBottom = BorderVertical | BorderBottom,
+	BorderVerticalTop = BorderVertical | BorderTop,
+	BorderHorizontalLeft = BorderHorizontal | BorderLeft,
+	BorderHorizontalRight = BorderHorizontal | BorderRight,
+	BorderAll = BorderVertical | BorderHorizontal
+};
+
+
+//============================================================================
+SideBarLocation CDockAreaWidget::calculateSideTabBarArea() const
+{
+	auto Container = dockContainer();
+	auto ContentRect = Container->contentRect();
+
+	int borders = BorderNone; // contains all borders that are touched by the dock ware
+	auto DockAreaTopLeft = mapTo(Container, rect().topLeft());
+	auto DockAreaRect = rect();
+	DockAreaRect.moveTo(DockAreaTopLeft);
+	const qreal aspectRatio = DockAreaRect.width() / (qMax(1, DockAreaRect.height()) * 1.0);
+	const qreal sizeRatio = (qreal)ContentRect.width() / DockAreaRect.width();
+	static const int MinBorderDistance = 16;
+	bool HorizontalOrientation = (aspectRatio > 1.0) && (sizeRatio < 3.0);
+
+	// measure border distances - a distance less than 16 px means we touch the
+	// border
+	int BorderDistance[4];
+
+	int Distance = qAbs(ContentRect.topLeft().y() - DockAreaRect.topLeft().y());
+	BorderDistance[SideBarLocation::SideBarTop] = (Distance < MinBorderDistance) ? 0 : Distance;
+	if (!BorderDistance[SideBarLocation::SideBarTop])
+	{
+		borders |= BorderTop;
+	}
+
+	Distance = qAbs(ContentRect.bottomRight().y() - DockAreaRect.bottomRight().y());
+	BorderDistance[SideBarLocation::SideBarBottom] = (Distance < MinBorderDistance) ? 0 : Distance;
+	if (!BorderDistance[SideBarLocation::SideBarBottom])
+	{
+		borders |= BorderBottom;
+	}
+
+	Distance = qAbs(ContentRect.topLeft().x() - DockAreaRect.topLeft().x());
+	BorderDistance[SideBarLocation::SideBarLeft] = (Distance < MinBorderDistance) ? 0 : Distance;
+	if (!BorderDistance[SideBarLocation::SideBarLeft])
+	{
+		borders |= BorderLeft;
+	}
+
+	Distance = qAbs(ContentRect.bottomRight().x() - DockAreaRect.bottomRight().x());
+	BorderDistance[SideBarLocation::SideBarRight] = (Distance < MinBorderDistance) ? 0 : Distance;
+	if (!BorderDistance[SideBarLocation::SideBarRight])
+	{
+		borders |= BorderRight;
+	}
+
+	auto SideTab = SideBarLocation::SideBarRight;
+	switch (borders)
+	{
+	// 1. It's touching all borders
+	case BorderAll: SideTab = HorizontalOrientation ? SideBarLocation::SideBarBottom : SideBarLocation::SideBarRight; break;
+
+	// 2. It's touching 3 borders
+	case BorderVerticalBottom : SideTab = SideBarLocation::SideBarBottom; break;
+	case BorderVerticalTop : SideTab = SideBarLocation::SideBarTop; break;
+	case BorderHorizontalLeft: SideTab = SideBarLocation::SideBarLeft; break;
+	case BorderHorizontalRight: SideTab = SideBarLocation::SideBarRight; break;
+
+	// 3. Its touching horizontal or vertical borders
+	case BorderVertical : SideTab = SideBarLocation::SideBarBottom; break;
+	case BorderHorizontal: SideTab = SideBarLocation::SideBarRight; break;
+
+	// 4. Its in a corner
+	case BorderTopLeft : SideTab = HorizontalOrientation ? SideBarLocation::SideBarTop : SideBarLocation::SideBarLeft; break;
+	case BorderTopRight : SideTab = HorizontalOrientation ? SideBarLocation::SideBarTop : SideBarLocation::SideBarRight; break;
+	case BorderBottomLeft : SideTab = HorizontalOrientation ? SideBarLocation::SideBarBottom : SideBarLocation::SideBarLeft; break;
+	case BorderBottomRight : SideTab = HorizontalOrientation ? SideBarLocation::SideBarBottom : SideBarLocation::SideBarRight; break;
+
+	// 5 Ists touching only one border
+	case BorderLeft: SideTab = SideBarLocation::SideBarLeft; break;
+	case BorderRight: SideTab = SideBarLocation::SideBarRight; break;
+	case BorderTop: SideTab = SideBarLocation::SideBarTop; break;
+	case BorderBottom: SideTab = SideBarLocation::SideBarBottom; break;
+	}
+
+	return SideTab;
+}
+
+
+//============================================================================
+void CDockAreaWidget::setAutoHide(bool Enable, SideBarLocation Location)
+{
+	if (!isAutoHideFeatureEnabled())
+	{
+		return;
+	}
+
+	if (!Enable)
+	{
+		if (isAutoHide())
+		{
+			autoHideDockContainer()->moveContentsToParent();
+		}
+		return;
+	}
+
+	auto area = (SideBarNone == Location) ? calculateSideTabBarArea() : Location;
+	for (const auto DockWidget : openedDockWidgets())
+	{
+		if (Enable == isAutoHide())
+		{
+			continue;
+		}
+
+		if (!DockWidget->features().testFlag(CDockWidget::DockWidgetPinnable))
+		{
+			continue;
+		}
+
+		dockContainer()->createAndSetupAutoHideContainer(area, DockWidget);
+	}
+}
+
+
+//============================================================================
+void CDockAreaWidget::toggleAutoHide(SideBarLocation Location)
+{
+	if (!isAutoHideFeatureEnabled())
+	{
+		return;
+	}
+
+	setAutoHide(!isAutoHide(), Location);
+}
+
+
 //============================================================================
 void CDockAreaWidget::closeOtherAreas()
 {
@@ -997,7 +1379,23 @@ bool CDockAreaWidget::isCentralWidgetArea() const
         return false;
     }
 
-    return dockManager()->centralWidget() == dockWidgets()[0];
+    return dockManager()->centralWidget() == dockWidgets().constFirst();
+}
+
+
+//============================================================================
+bool CDockAreaWidget::containsCentralWidget() const
+{
+	auto centralWidget = dockManager()->centralWidget();
+	for (const auto &dockWidget : dockWidgets())
+	{
+		if (dockWidget == centralWidget)
+		{
+			return true;
+		}
+	}
+
+	return false;
 }
 
 
@@ -1030,6 +1428,19 @@ void CDockAreaWidget::onDockWidgetFeaturesChanged()
 }
 
 
+//============================================================================
+bool CDockAreaWidget::isTopLevelArea() const
+{
+	auto Container = dockContainer();
+	if (!Container)
+	{
+		return false;
+	}
+
+	return (Container->topLevelDockArea() == this);
+}
+
+
 #ifdef Q_OS_WIN
 //============================================================================
 bool CDockAreaWidget::event(QEvent *e)

src/DockAreaWidget.h

@@ -33,6 +33,7 @@
 #include <QFrame>
 
 #include "ads_globals.h"
+#include "AutoHideTab.h"
 #include "DockWidget.h"
 
 QT_FORWARD_DECLARE_CLASS(QXmlStreamWriter)
@@ -45,6 +46,7 @@ class CDockManager;
 class CDockContainerWidget;
 class DockContainerWidgetPrivate;
 class CDockAreaTitleBar;
+class CDockingStateReader;
 
 
 /**
@@ -65,6 +67,7 @@ private:
 	friend class CDockWidget;
 	friend struct DockManagerPrivate;
 	friend class CDockManager;
+	friend class CAutoHideDockContainer;
 	void onDockWidgetFeaturesChanged();
 
 private Q_SLOTS:
@@ -76,6 +79,22 @@ private Q_SLOTS:
 	 */
 	void reorderDockWidget(int fromIndex, int toIndex);
 
+	/*
+	 * Update the auto hide button checked state based on if it's contained in an auto hide container or not
+	 */
+	void updateAutoHideButtonCheckState();
+
+	/*
+	 * Update the title bar button tooltips
+	 */
+	void updateTitleBarButtonsToolTips();
+
+	/**
+	 * Calculate the auto hide side bar location depending on the dock area
+	 * widget position in the container
+	 */
+	SideBarLocation calculateSideTabBarArea() const;
+
 protected:
 
 #ifdef Q_OS_WIN
@@ -149,6 +168,11 @@ protected:
 	 */
 	void markTitleBarMenuOutdated();
 
+	/*
+	 * Update the title bar button visibility based on if it's top level or not
+	 */
+	void updateTitleBarButtonVisibility(bool IsTopLevel) const;
+
 protected Q_SLOTS:
 	void toggleView(bool Open);
 
@@ -186,6 +210,23 @@ public:
 	 */
 	CDockContainerWidget* dockContainer() const;
 
+	/**
+	 * Returns the auto hide dock container widget this dock area widget belongs to or 0
+	 * if there is no
+	 */
+	CAutoHideDockContainer* autoHideDockContainer() const; 
+
+	/**
+	 * Returns true if the dock area is in an auto hide container
+	 */
+	bool isAutoHide() const;
+
+
+	/**
+	 * Sets the current auto hide dock container
+	 */
+	void setAutoHideDockContainer(CAutoHideDockContainer* AutoHideDockContainer);
+
     /**
      * Returns the largest minimumSizeHint() of the dock widgets in this
      * area.
@@ -262,6 +303,13 @@ public:
 	 */
 	void saveState(QXmlStreamWriter& Stream) const;
 
+    /**
+	 * Restores a dock area.
+	 * \see restoreChildNodes() for details
+	 */
+    static bool restoreState(CDockingStateReader& Stream, CDockAreaWidget*& CreatedWidget,
+		bool Testing, CDockContainerWidget* ParentContainer);
+
 	/**
 	 * This functions returns the dock widget features of all dock widget in
 	 * this area.
@@ -319,10 +367,22 @@ public:
 	void setDockAreaFlag(eDockAreaFlag Flag, bool On);
 
     /**
-     * Returns true if the area contains the central widget of it's manager.
+     * Returns true if the area has a single dock widget and contains the central widget of it's manager.
      */
     bool isCentralWidgetArea() const;
 
+    /**
+     * Returns true if the area contains the central widget of it's manager.
+     */
+    bool containsCentralWidget() const;
+
+    /**
+     * If this dock area is the one and only visible area in a container, then
+     * this function returns true
+     */
+    bool isTopLevelArea() const;
+
+
 public Q_SLOTS:
 	/**
 	 * This activates the tab for the given tab index.
@@ -337,6 +397,19 @@ public Q_SLOTS:
 	void closeArea();
 
 	/**
+	 * Sets the dock area into auto hide mode or into normal mode.
+	 * If the dock area is switched to auto hide mode, then all dock widgets
+	 * that are pinable will be added to the sidebar
+	 */
+	void setAutoHide(bool Enable, SideBarLocation Location = SideBarNone);
+
+	/**
+	 * Switches the dock area to auto hide mode or vice versa depending on its
+	 * current state.
+	 */
+	void toggleAutoHide(SideBarLocation Location = SideBarNone);
+
+    /**
 	 * This function closes all other areas except of this area
 	 */
 	void closeOtherAreas();
@@ -367,7 +440,8 @@ Q_SIGNALS:
 	 */
 	void viewToggled(bool Open);
 }; // class DockAreaWidget
-}
- // namespace ads
+} // namespace ads
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(ads::CDockAreaWidget::DockAreaFlags)
 //-----------------------------------------------------------------------------
 #endif // DockAreaWidgetH

src/DockComponentsFactory.cpp

@@ -8,6 +8,7 @@
 //============================================================================
 //                                   INCLUDES
 //============================================================================
+#include <AutoHideTab.h>
 #include "DockComponentsFactory.h"
 
 #include <memory>
@@ -29,6 +30,12 @@ CDockWidgetTab* CDockComponentsFactory::createDockWidgetTab(CDockWidget* DockWid
 	return new CDockWidgetTab(DockWidget);
 }
 
+//============================================================================
+CAutoHideTab* CDockComponentsFactory::createDockWidgetSideTab(CDockWidget *DockWidget) const
+{
+	return new CAutoHideTab(DockWidget);
+}
+
 
 //============================================================================
 CDockAreaTabBar* CDockComponentsFactory::createDockAreaTabBar(CDockAreaWidget* DockArea) const

src/DockComponentsFactory.h

@@ -19,6 +19,7 @@ class CDockAreaTitleBar;
 class CDockAreaTabBar;
 class CDockAreaWidget;
 class CDockWidget;
+class CAutoHideTab;
 
 
 
@@ -46,6 +47,12 @@ public:
 	 */
 	virtual CDockWidgetTab* createDockWidgetTab(CDockWidget* DockWidget) const;
 
+	/**
+	 * This default implementation just creates a dock widget side tab with
+	 * new CDockWidgetTab(DockWidget).
+	 */
+	virtual CAutoHideTab* createDockWidgetSideTab(CDockWidget* DockWidget) const;
+
 	/**
 	 * This default implementation just creates a dock area tab bar with
 	 * new CDockAreaTabBar(DockArea).

src/DockContainerWidget.cpp

@@ -38,6 +38,11 @@
 #include <QDebug>
 #include <QXmlStreamWriter>
 #include <QAbstractButton>
+#include <QLabel>
+#include <QTimer>
+#include <QMetaObject>
+#include <QMetaType>
+#include <QApplication>
 
 #include "DockManager.h"
 #include "DockAreaWidget.h"
@@ -47,6 +52,12 @@
 #include "DockOverlay.h"
 #include "ads_globals.h"
 #include "DockSplitter.h"
+#include "DockWidgetTab.h"
+#include "DockAreaTitleBar.h"
+#include "DockFocusController.h"
+#include "AutoHideDockContainer.h"
+#include "AutoHideSideBar.h"
+#include "AutoHideTab.h"
 
 #include <functional>
 #include <iostream>
@@ -131,12 +142,17 @@ public:
 	QPointer<CDockManager> DockManager;
 	unsigned int zOrderIndex = 0;
 	QList<CDockAreaWidget*> DockAreas;
+	QList<CAutoHideDockContainer*> AutoHideWidgets;
+	QMap<SideBarLocation, CAutoHideSideBar*> SideTabBarWidgets;
 	QGridLayout* Layout = nullptr;
 	QSplitter* RootSplitter = nullptr;
 	bool isFloating = false;
 	CDockAreaWidget* LastAddedAreaCache[5];
 	int VisibleDockAreaCount = -1;
 	CDockAreaWidget* TopLevelDockArea = nullptr;
+	QTimer DelayedAutoHideTimer;
+	CAutoHideTab* DelayedAutoHideTab;
+	bool DelayedAutoHideShow = false;
 
 	/**
 	 * Private data constructor
@@ -153,7 +169,7 @@ public:
 	 * Adds dock widget to a existing DockWidgetArea
 	 */
 	CDockAreaWidget* addDockWidgetToDockArea(DockWidgetArea area, CDockWidget* Dockwidget,
-		CDockAreaWidget* TargetDockArea);
+		CDockAreaWidget* TargetDockArea, int Index = -1);
 
 	/**
 	 * Add dock area to this container
@@ -212,6 +228,11 @@ public:
 	void saveChildNodesState(QXmlStreamWriter& Stream, QWidget* Widget);
 
 	/**
+	 * Save state of auto hide widgets
+	 */
+    void saveAutoHideWidgetsState(QXmlStreamWriter& Stream);
+
+    /**
 	 * Restore state of child nodes.
 	 * \param[in] Stream The data stream that contains the serialized state
 	 * \param[out] CreatedWidget The widget created from parsed data or 0 if
@@ -236,6 +257,12 @@ public:
 	bool restoreDockArea(CDockingStateReader& Stream, QWidget*& CreatedWidget,
 		bool Testing);
 
+    /**
+     * Restores a auto hide side bar
+     */
+    bool restoreSideBar(CDockingStateReader& Stream, QWidget*& CreatedWidget,
+        bool Testing);
+
 	/**
 	 * Helper function for recursive dumping of layout
 	 */
@@ -351,6 +378,13 @@ DockContainerWidgetPrivate::DockContainerWidgetPrivate(CDockContainerWidget* _pu
 	_this(_public)
 {
 	std::fill(std::begin(LastAddedAreaCache),std::end(LastAddedAreaCache), nullptr);
+	DelayedAutoHideTimer.setSingleShot(true);
+	DelayedAutoHideTimer.setInterval(500);
+	QObject::connect(&DelayedAutoHideTimer, &QTimer::timeout, [this](){
+		auto GlobalPos = DelayedAutoHideTab->mapToGlobal(QPoint(0, 0));
+		qApp->sendEvent(DelayedAutoHideTab, new QMouseEvent(QEvent::MouseButtonPress,
+				QPoint(0, 0), GlobalPos, Qt::LeftButton, {Qt::LeftButton}, Qt::NoModifier));
+	});
 }
 
 
@@ -402,13 +436,11 @@ void DockContainerWidgetPrivate::onVisibleDockAreaCountChanged()
 	if (TopLevelDockArea)
 	{
 		this->TopLevelDockArea = TopLevelDockArea;
-		TopLevelDockArea->titleBarButton(TitleBarButtonUndock)->setVisible(false || !_this->isFloating());
-		TopLevelDockArea->titleBarButton(TitleBarButtonClose)->setVisible(false || !_this->isFloating());
+		TopLevelDockArea->updateTitleBarButtonVisibility(true);
 	}
 	else if (this->TopLevelDockArea)
 	{
-		this->TopLevelDockArea->titleBarButton(TitleBarButtonUndock)->setVisible(true);
-		this->TopLevelDockArea->titleBarButton(TitleBarButtonClose)->setVisible(true);
+		this->TopLevelDockArea->updateTitleBarButtonVisibility(false);
 		this->TopLevelDockArea = nullptr;
 	}
 }
@@ -520,8 +552,9 @@ void DockContainerWidgetPrivate::dropIntoSection(CFloatingDockContainer* Floatin
 		return;
 	}
 
+	CDockContainerWidget* FloatingContainer = FloatingWidget->dockContainer();
 	auto InsertParam = internal::dockAreaInsertParameters(area);
-	auto NewDockAreas = FloatingWidget->dockContainer()->findChildren<CDockAreaWidget*>(
+	auto NewDockAreas = FloatingContainer->findChildren<CDockAreaWidget*>(
 		QString(), Qt::FindChildrenRecursively);
 	QSplitter* TargetAreaSplitter = internal::findParent<QSplitter*>(TargetArea);
 
@@ -534,9 +567,7 @@ void DockContainerWidgetPrivate::dropIntoSection(CFloatingDockContainer* Floatin
         TargetAreaSplitter = Splitter;
 	}
 	int AreaIndex = TargetAreaSplitter->indexOf(TargetArea);
-	auto Widget = FloatingWidget->dockContainer()->findChild<QWidget*>(QString(), Qt::FindDirectChildrenOnly);
-	auto FloatingSplitter = qobject_cast<QSplitter*>(Widget);
-
+	auto FloatingSplitter = FloatingContainer->rootSplitter();
 	if (TargetAreaSplitter->orientation() == InsertParam.orientation())
 	{
 		auto Sizes = TargetAreaSplitter->sizes();
@@ -544,7 +575,7 @@ void DockContainerWidgetPrivate::dropIntoSection(CFloatingDockContainer* Floatin
 		bool AdjustSplitterSizes = true;
 		if ((FloatingSplitter->orientation() != InsertParam.orientation()) && FloatingSplitter->count() > 1)
 		{
-			TargetAreaSplitter->insertWidget(AreaIndex + InsertParam.insertOffset(), Widget);
+			TargetAreaSplitter->insertWidget(AreaIndex + InsertParam.insertOffset(), FloatingSplitter);
             updateSplitterHandles(TargetAreaSplitter);
         }
 		else
@@ -568,13 +599,12 @@ void DockContainerWidgetPrivate::dropIntoSection(CFloatingDockContainer* Floatin
 	}
 	else
 	{
-		QList<int> NewSplitterSizes;
 		QSplitter* NewSplitter = newSplitter(InsertParam.orientation());
 		int TargetAreaSize = (InsertParam.orientation() == Qt::Horizontal) ? TargetArea->width() : TargetArea->height();
 		bool AdjustSplitterSizes = true;
 		if ((FloatingSplitter->orientation() != InsertParam.orientation()) && FloatingSplitter->count() > 1)
 		{
-			NewSplitter->addWidget(Widget);
+			NewSplitter->addWidget(FloatingSplitter);
             updateSplitterHandles(NewSplitter);
         }
 		else
@@ -692,7 +722,6 @@ void DockContainerWidgetPrivate::moveToNewSection(QWidget* Widget, CDockAreaWidg
 	}
 	else
 	{
-		auto Sizes = TargetAreaSplitter->sizes();
 		int TargetAreaSize = (InsertParam.orientation() == Qt::Horizontal) ? TargetArea->width() : TargetArea->height();
 		QSplitter* NewSplitter = newSplitter(InsertParam.orientation());
 		NewSplitter->addWidget(TargetArea);
@@ -805,8 +834,8 @@ void DockContainerWidgetPrivate::addDockAreasToList(const QList<CDockAreaWidget*
 	// likely hidden. We need to ensure, that it is visible
 	for (auto DockArea : NewDockAreas)
 	{
-		DockArea->titleBarButton(TitleBarButtonUndock)->setVisible(true);
 		DockArea->titleBarButton(TitleBarButtonClose)->setVisible(true);
+		DockArea->titleBarButton(TitleBarButtonAutoHide)->setVisible(true);
 	}
 
 	// We need to ensure, that the dock area title bar is visible. The title bar
@@ -874,6 +903,21 @@ void DockContainerWidgetPrivate::saveChildNodesState(QXmlStreamWriter& s, QWidge
 }
 
 
+//============================================================================
+void DockContainerWidgetPrivate::saveAutoHideWidgetsState(QXmlStreamWriter& s)
+{
+	for (const auto sideTabBar : SideTabBarWidgets.values())
+    {
+		if (!sideTabBar->tabCount())
+		{
+			continue;
+		}
+
+		sideTabBar->saveState(s);
+    }
+}
+
+
 //============================================================================
 bool DockContainerWidgetPrivate::restoreSplitter(CDockingStateReader& s,
 	QWidget*& CreatedWidget, bool Testing)
@@ -994,90 +1038,88 @@ bool DockContainerWidgetPrivate::restoreSplitter(CDockingStateReader& s,
 bool DockContainerWidgetPrivate::restoreDockArea(CDockingStateReader& s,
 	QWidget*& CreatedWidget, bool Testing)
 {
+	CDockAreaWidget* DockArea = nullptr;
+	auto Result = CDockAreaWidget::restoreState(s, DockArea, Testing, _this);
+	if (Result && DockArea)
+	{
+		appendDockAreas({DockArea});
+	}
+	CreatedWidget = DockArea;
+	return Result;
+}
+
+
+//============================================================================
+bool DockContainerWidgetPrivate::restoreSideBar(CDockingStateReader& s,
+	QWidget*& CreatedWidget, bool Testing)
+{
+	Q_UNUSED(CreatedWidget)
+	// Simply ignore side bar auto hide widgets from saved state if
+	// auto hide support is disabled
+	if (!CDockManager::testAutoHideConfigFlag(CDockManager::AutoHideFeatureEnabled))
+	{
+		return true;
+	}
+
 	bool Ok;
-#ifdef ADS_DEBUG_PRINT
-	int Tabs = s.attributes().value("Tabs").toInt(&Ok);
+	auto Area = (ads::SideBarLocation)s.attributes().value("Area").toInt(&Ok);
 	if (!Ok)
 	{
 		return false;
 	}
-#endif
-
-	QString CurrentDockWidget = s.attributes().value("Current").toString();
-    ADS_PRINT("Restore NodeDockArea Tabs: " << Tabs << " Current: "
-            << CurrentDockWidget);
-
-	CDockAreaWidget* DockArea = nullptr;
-	if (!Testing)
-	{
-		DockArea = new CDockAreaWidget(DockManager, _this);
-		const auto AllowedAreasAttribute = s.attributes().value("AllowedAreas");
-		if (!AllowedAreasAttribute.isEmpty())
-		{
-			DockArea->setAllowedAreas((DockWidgetArea)AllowedAreasAttribute.toInt(nullptr, 16));
-		}
-
-		const auto FlagsAttribute = s.attributes().value("Flags");
-		if (!FlagsAttribute.isEmpty())
-		{
-			DockArea->setDockAreaFlags((CDockAreaWidget::DockAreaFlags)FlagsAttribute.toInt(nullptr, 16));
-		}
-	}
 
 	while (s.readNextStartElement())
 	{
-        if (s.name() != QLatin1String("Widget"))
+		if (s.name() != QLatin1String("Widget"))
 		{
 			continue;
 		}
 
-		auto ObjectName = s.attributes().value("Name");
-		if (ObjectName.isEmpty())
+		auto Name = s.attributes().value("Name");
+		if (Name.isEmpty())
 		{
 			return false;
 		}
 
+		bool Ok;
 		bool Closed = s.attributes().value("Closed").toInt(&Ok);
 		if (!Ok)
 		{
 			return false;
 		}
 
+		int Size = s.attributes().value("Size").toInt(&Ok);
+		if (!Ok)
+		{
+			return false;
+		}
+
 		s.skipCurrentElement();
-		CDockWidget* DockWidget = DockManager->findDockWidget(ObjectName.toString());
+		CDockWidget* DockWidget = DockManager->findDockWidget(Name.toString());
 		if (!DockWidget || Testing)
 		{
 			continue;
 		}
 
-        ADS_PRINT("Dock Widget found - parent " << DockWidget->parent());
-		// We hide the DockArea here to prevent the short display (the flashing)
-		// of the dock areas during application startup
-		DockArea->hide();
-		DockArea->addDockWidget(DockWidget);
-		DockWidget->setToggleViewActionChecked(!Closed);
-		DockWidget->setClosedState(Closed);
-		DockWidget->setProperty(internal::ClosedProperty, Closed);
+		auto SideBar = _this->sideTabBar(Area);
+		CAutoHideDockContainer* AutoHideContainer;
+		if (DockWidget->isAutoHide())
+		{
+			AutoHideContainer = DockWidget->autoHideDockContainer();
+			if (AutoHideContainer->sideBar() != SideBar)
+			{
+				SideBar->addAutoHideWidget(AutoHideContainer);
+			}
+		}
+		else
+		{
+			AutoHideContainer = SideBar->insertDockWidget(-1, DockWidget);
+		}
+		AutoHideContainer->setSize(Size);
+        DockWidget->setProperty(internal::ClosedProperty, Closed);
 		DockWidget->setProperty(internal::DirtyProperty, false);
 	}
 
-	if (Testing)
-	{
-		return true;
-	}
-
-	if (!DockArea->dockWidgetsCount())
-	{
-		delete DockArea;
-		DockArea = nullptr;
-	}
-	else
-	{
-		DockArea->setProperty("currentDockWidget", CurrentDockWidget);
-		appendDockAreas({DockArea});
-	}
-
-	CreatedWidget = DockArea;
 	return true;
 }
 
@@ -1099,6 +1141,11 @@ bool DockContainerWidgetPrivate::restoreChildNodes(CDockingStateReader& s,
 			Result = restoreDockArea(s, CreatedWidget, Testing);
             ADS_PRINT("DockAreaWidget");
 		}
+        else if (s.name() == QLatin1String("SideBar"))
+        {
+        	Result = restoreSideBar(s, CreatedWidget, Testing);
+        	ADS_PRINT("SideBar");
+        }
 		else
 		{
 			s.skipCurrentElement();
@@ -1228,11 +1275,11 @@ void DockContainerWidgetPrivate::dumpRecursive(int level, QWidget* widget)
 
 //============================================================================
 CDockAreaWidget* DockContainerWidgetPrivate::addDockWidgetToDockArea(DockWidgetArea area,
-	CDockWidget* Dockwidget, CDockAreaWidget* TargetDockArea)
+	CDockWidget* Dockwidget, CDockAreaWidget* TargetDockArea, int Index)
 {
 	if (CenterDockWidgetArea == area)
 	{
-		TargetDockArea->addDockWidget(Dockwidget);
+		TargetDockArea->insertDockWidget(Index, Dockwidget);
 		TargetDockArea->updateTitleBarVisibility();
 		return TargetDockArea;
 	}
@@ -1286,8 +1333,10 @@ CDockContainerWidget::CDockContainerWidget(CDockManager* DockManager, QWidget *p
 	d->isFloating = floatingWidget() != nullptr;
 
 	d->Layout = new QGridLayout();
-	d->Layout->setContentsMargins(0, 1, 0, 1);
+	d->Layout->setContentsMargins(0, 0, 0, 0);
 	d->Layout->setSpacing(0);
+	d->Layout->setColumnStretch(1, 1);
+	d->Layout->setRowStretch(1, 1);
 	setLayout(d->Layout);
 
 	// The function d->newSplitter() accesses the config flags from dock
@@ -1299,9 +1348,11 @@ CDockContainerWidget::CDockContainerWidget(CDockManager* DockManager, QWidget *p
 	{
 		d->DockManager->registerDockContainer(this);
 		createRootSplitter();
+		createSideTabBarWidgets();
 	}
 }
 
+
 //============================================================================
 CDockContainerWidget::~CDockContainerWidget()
 {
@@ -1309,14 +1360,16 @@ CDockContainerWidget::~CDockContainerWidget()
 	{
 		d->DockManager->removeDockContainer(this);
 	}
+
 	delete d;
 }
 
 
 //============================================================================
 CDockAreaWidget* CDockContainerWidget::addDockWidget(DockWidgetArea area, CDockWidget* Dockwidget,
-	CDockAreaWidget* DockAreaWidget)
+	CDockAreaWidget* DockAreaWidget, int Index)
 {
+	auto TopLevelDockWidget = topLevelDockWidget();
 	CDockAreaWidget* OldDockArea = Dockwidget->dockAreaWidget();
 	if (OldDockArea)
 	{
@@ -1324,16 +1377,50 @@ CDockAreaWidget* CDockContainerWidget::addDockWidget(DockWidgetArea area, CDockW
 	}
 
 	Dockwidget->setDockManager(d->DockManager);
+	CDockAreaWidget* DockArea;
 	if (DockAreaWidget)
 	{
-		return d->addDockWidgetToDockArea(area, Dockwidget, DockAreaWidget);
+		DockArea = d->addDockWidgetToDockArea(area, Dockwidget, DockAreaWidget, Index);
 	}
 	else
 	{
-		return d->addDockWidgetToContainer(area, Dockwidget);
+		DockArea = d->addDockWidgetToContainer(area, Dockwidget);
 	}
+
+	if (TopLevelDockWidget)
+	{
+		auto NewTopLevelDockWidget = topLevelDockWidget();
+		// If the container contained only one visible dock widget, the we need
+		// to emit a top level event for this widget because it is not the one and
+		// only visible docked widget anymore
+		if (!NewTopLevelDockWidget)
+		{
+			CDockWidget::emitTopLevelEventForWidget(TopLevelDockWidget, false);
+		}
+	}
+	return DockArea;
 }
 
+
+//============================================================================
+CAutoHideDockContainer* CDockContainerWidget::createAndSetupAutoHideContainer(
+	SideBarLocation area, CDockWidget* DockWidget)
+{
+	if (!CDockManager::testAutoHideConfigFlag(CDockManager::AutoHideFeatureEnabled))
+	{
+		Q_ASSERT_X(false, "CDockContainerWidget::createAndInitializeDockWidgetOverlayContainer",
+			"Requested area does not exist in config");
+		return nullptr;
+	}
+	if (d->DockManager != DockWidget->dockManager())
+	{
+        DockWidget->setDockManager(d->DockManager); // Auto hide Dock Container needs a valid dock manager
+	}
+
+	return sideTabBar(area)->insertDockWidget(-1, DockWidget);
+}
+
+
 //============================================================================
 void CDockContainerWidget::removeDockWidget(CDockWidget* Dockwidget)
 {
@@ -1375,6 +1462,13 @@ bool CDockContainerWidget::event(QEvent *e)
 }
 
 
+//============================================================================
+QList<CAutoHideDockContainer*> CDockContainerWidget::autoHideWidgets() const
+{
+	return d->AutoHideWidgets;
+}
+
+
 //============================================================================
 void CDockContainerWidget::addDockArea(CDockAreaWidget* DockAreaWidget,
 	DockWidgetArea area)
@@ -1393,6 +1487,13 @@ void CDockContainerWidget::addDockArea(CDockAreaWidget* DockAreaWidget,
 void CDockContainerWidget::removeDockArea(CDockAreaWidget* area)
 {
     ADS_PRINT("CDockContainerWidget::removeDockArea");
+    // If it is an auto hide area, then there is nothing much to do
+	if (area->isAutoHide())
+	{
+        area->setAutoHideDockContainer(nullptr);
+		return;
+	}
+
 	area->disconnect(this);
 	d->DockAreas.removeAll(area);
 	CDockSplitter* Splitter = internal::findParent<CDockSplitter*>(area);
@@ -1564,6 +1665,14 @@ void CDockContainerWidget::dropFloatingWidget(CFloatingDockContainer* FloatingWi
 		}
 	}
 
+    // Remove the auto hide widgets from the FloatingWidget and insert
+	// them into this widget
+	for (auto AutohideWidget : FloatingWidget->dockContainer()->autoHideWidgets())
+	{
+		auto SideBar = sideTabBar(AutohideWidget->sideBarLocation());
+		SideBar->addAutoHideWidget(AutohideWidget);
+	}
+
 	if (Dropped)
 	{ 
 		// Fix https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System/issues/351
@@ -1625,6 +1734,37 @@ QList<CDockAreaWidget*> CDockContainerWidget::openedDockAreas() const
 }
 
 
+//============================================================================
+QList<CDockWidget*> CDockContainerWidget::openedDockWidgets() const
+{
+	QList<CDockWidget*> DockWidgetList;
+	for (auto DockArea : d->DockAreas)
+	{
+		if (!DockArea->isHidden())
+		{
+			DockWidgetList.append(DockArea->openedDockWidgets());
+		}
+	}
+
+	return DockWidgetList;
+}
+
+
+//============================================================================
+bool CDockContainerWidget::hasOpenDockAreas() const
+{
+	for (auto DockArea : d->DockAreas)
+	{
+		if (!DockArea->isHidden())
+		{
+			return true;
+		}
+	}
+
+	return false;
+}
+
+
 //============================================================================
 void CDockContainerWidget::saveState(QXmlStreamWriter& s) const
 {
@@ -1644,6 +1784,7 @@ void CDockContainerWidget::saveState(QXmlStreamWriter& s) const
 #endif
 	}
 	d->saveChildNodesState(s, d->RootSplitter);
+	d->saveAutoHideWidgetsState(s);
 	s.writeEndElement();
 }
 
@@ -1654,7 +1795,7 @@ bool CDockContainerWidget::restoreState(CDockingStateReader& s, bool Testing)
 	bool IsFloating = s.attributes().value("Floating").toInt();
     ADS_PRINT("Restore CDockContainerWidget Floating" << IsFloating);
 
-	QWidget*NewRootSplitter {};
+	QWidget* NewRootSplitter {};
 	if (!Testing)
 	{
 		d->VisibleDockAreaCount = -1;// invalidate the dock area count
@@ -1680,7 +1821,10 @@ bool CDockContainerWidget::restoreState(CDockingStateReader& s, bool Testing)
 		if (!Testing)
 		{
 			CFloatingDockContainer* FloatingWidget = floatingWidget();
-			FloatingWidget->restoreGeometry(Geometry);
+			if (FloatingWidget)
+			{
+				FloatingWidget->restoreGeometry(Geometry);
+			}
 		}
 	}
 
@@ -1725,7 +1869,41 @@ void CDockContainerWidget::createRootSplitter()
 		return;
 	}
 	d->RootSplitter = d->newSplitter(Qt::Horizontal);
-	d->Layout->addWidget(d->RootSplitter);
+	d->Layout->addWidget(d->RootSplitter, 1, 1); // Add it to the center - the 0 and 2 indexes are used for the SideTabBar widgets
+}
+
+
+//============================================================================
+void CDockContainerWidget::createSideTabBarWidgets()
+{
+	if (!CDockManager::testAutoHideConfigFlag(CDockManager::AutoHideFeatureEnabled))
+	{
+		return;
+	}
+
+	{
+		auto Area = SideBarLocation::SideBarLeft;
+        d->SideTabBarWidgets[Area] = new CAutoHideSideBar(this, Area);
+		d->Layout->addWidget(d->SideTabBarWidgets[Area], 1, 0);
+	}
+
+	{
+		auto Area = SideBarLocation::SideBarRight;
+        d->SideTabBarWidgets[Area] = new CAutoHideSideBar(this, Area);
+		d->Layout->addWidget(d->SideTabBarWidgets[Area], 1, 2);
+	}
+
+	{
+		auto Area = SideBarLocation::SideBarBottom;
+        d->SideTabBarWidgets[Area] = new CAutoHideSideBar(this, Area);
+        d->Layout->addWidget(d->SideTabBarWidgets[Area], 2, 1);
+	}
+
+	{
+		auto Area = SideBarLocation::SideBarTop;
+        d->SideTabBarWidgets[Area] = new CAutoHideSideBar(this, Area);
+        d->Layout->addWidget(d->SideTabBarWidgets[Area], 0, 1);
+	}
 }
 
 
@@ -1807,13 +1985,25 @@ QList<CDockWidget*> CDockContainerWidget::dockWidgets() const
 	return Result;
 }
 
-
 //============================================================================
 void CDockContainerWidget::updateSplitterHandles(QSplitter* splitter)
 {
     d->updateSplitterHandles(splitter);
 }
 
+//============================================================================
+void CDockContainerWidget::registerAutoHideWidget(CAutoHideDockContainer* AutohideWidget)
+{
+	d->AutoHideWidgets.append(AutohideWidget);
+	Q_EMIT autoHideWidgetCreated(AutohideWidget);
+    ADS_PRINT("d->AutoHideWidgets.count() " << d->AutoHideWidgets.count());
+}
+
+//============================================================================
+void CDockContainerWidget::removeAutoHideWidget(CAutoHideDockContainer* AutohideWidget)
+{
+	d->AutoHideWidgets.removeAll(AutohideWidget);
+}
 
 //============================================================================
 CDockWidget::DockWidgetFeatures CDockContainerWidget::features() const
@@ -1860,7 +2050,123 @@ void CDockContainerWidget::closeOtherAreas(CDockAreaWidget* KeepOpenArea)
 	}
 }
 
+//============================================================================
+CAutoHideSideBar* CDockContainerWidget::sideTabBar(SideBarLocation area) const
+{
+	return d->SideTabBarWidgets[area];
+}
 
+
+//============================================================================
+QRect CDockContainerWidget::contentRect() const
+{
+	if (!d->RootSplitter)
+	{
+		return QRect();
+	}
+
+	return d->RootSplitter->geometry();
+}
+
+
+//===========================================================================
+QRect CDockContainerWidget::contentRectGlobal() const
+{
+	if (!d->RootSplitter)
+	{
+		return QRect();
+	}
+	return internal::globalGeometry(d->RootSplitter);
+}
+
+
+//===========================================================================
+CDockManager* CDockContainerWidget::dockManager() const
+{
+	return d->DockManager;
+}
+
+
+//===========================================================================
+void CDockContainerWidget::handleAutoHideWidgetEvent(QEvent* e, QWidget* w)
+{
+	if (!CDockManager::testAutoHideConfigFlag(CDockManager::AutoHideShowOnMouseOver))
+	{
+		return;
+	}
+
+	if (dockManager()->isRestoringState())
+	{
+		return;
+	}
+
+	auto AutoHideTab = qobject_cast<CAutoHideTab*>(w);
+	if (AutoHideTab)
+	{
+		switch (e->type())
+		{
+		case QEvent::Enter:
+			 if (!AutoHideTab->dockWidget()->isVisible())
+			 {
+				 d->DelayedAutoHideTab = AutoHideTab;
+				 d->DelayedAutoHideShow = true;
+				 d->DelayedAutoHideTimer.start();
+			 }
+			 else
+			 {
+				 d->DelayedAutoHideTimer.stop();
+			 }
+			 break;
+
+		case QEvent::MouseButtonPress:
+			 d->DelayedAutoHideTimer.stop();
+			 break;
+
+		case QEvent::Leave:
+			 if (AutoHideTab->dockWidget()->isVisible())
+			 {
+				 d->DelayedAutoHideTab = AutoHideTab;
+				 d->DelayedAutoHideShow = false;
+				 d->DelayedAutoHideTimer.start();
+			 }
+			 else
+			 {
+				 d->DelayedAutoHideTimer.stop();
+			 }
+			 break;
+
+		default:
+			break;
+		}
+		return;
+	}
+
+	auto AutoHideContainer = qobject_cast<CAutoHideDockContainer*>(w);
+	if (AutoHideContainer)
+	{
+		switch (e->type())
+		{
+		case QEvent::Enter:
+		case QEvent::Hide:
+			 d->DelayedAutoHideTimer.stop();
+			 break;
+
+		case QEvent::Leave:
+			 if (AutoHideContainer->isVisible())
+			 {
+				 d->DelayedAutoHideTab = AutoHideContainer->autoHideTab();
+				 d->DelayedAutoHideShow = false;
+				 d->DelayedAutoHideTimer.start();
+			 }
+			 break;
+
+		default:
+			break;
+		}
+		return;
+		return;
+	}
+}
 } // namespace ads
 
 //---------------------------------------------------------------------------

src/DockContainerWidget.h

@@ -33,6 +33,7 @@
 #include <QFrame>
 
 #include "ads_globals.h"
+#include "AutoHideTab.h"
 #include "DockWidget.h"
 
 QT_FORWARD_DECLARE_CLASS(QXmlStreamWriter)
@@ -50,6 +51,11 @@ struct FloatingDockContainerPrivate;
 class CFloatingDragPreview;
 struct FloatingDragPreviewPrivate;
 class CDockingStateReader;
+class CAutoHideSideBar;
+class CAutoHideTab;
+struct AutoHideTabPrivate;
+struct AutoHideDockContainerPrivate;
+
 
 /**
  * Container that manages a number of dock areas with single dock widgets
@@ -73,6 +79,11 @@ private:
 	friend class CDockWidget;
 	friend class CFloatingDragPreview;
 	friend struct FloatingDragPreviewPrivate;
+	friend CAutoHideDockContainer;
+	friend CAutoHideTab;
+	friend AutoHideTabPrivate;
+	friend AutoHideDockContainerPrivate;
+	friend CAutoHideSideBar;
 
 protected:
 	/**
@@ -85,11 +96,23 @@ protected:
 	 */
 	QSplitter* rootSplitter() const;
 
+	/**
+	 * Creates and initializes a dockwidget auto hide container into the given area.
+	 * Initializing inserts the tabs into the side tab widget and hides it
+	 * Returns nullptr if you try and insert into an area where the configuration is not enabled
+	 */
+	CAutoHideDockContainer* createAndSetupAutoHideContainer(SideBarLocation area, CDockWidget* DockWidget);
+
 	/**
 	 * Helper function for creation of the root splitter
 	 */
 	void createRootSplitter();
 
+	/**
+	 * Helper function for creation of the side tab bar widgets
+	 */
+	void createSideTabBarWidgets();
+
 	/**
 	 * Drop floating widget into the container
 	 */
@@ -141,7 +164,8 @@ protected:
 	CDockWidget* topLevelDockWidget() const;
 
 	/**
-	 * Returns the top level dock area.
+	 * If the container has only one single visible dock area, then this
+	 * functions returns this top level dock area
 	 */
 	CDockAreaWidget* topLevelDockArea() const;
 
@@ -161,6 +185,24 @@ protected:
      */
     void updateSplitterHandles(QSplitter* splitter);
 
+	/**
+	 * Registers the given floating widget in the internal list of
+	 * auto hide widgets
+	 */
+    void registerAutoHideWidget(CAutoHideDockContainer* AutoHideWidget);
+
+    /**
+	 * Remove the given auto hide widget from the list of registered auto hide
+	 * widgets
+	 */
+    void removeAutoHideWidget(CAutoHideDockContainer* AutoHideWidget);
+
+    /**
+     * Handles widget events of auto hide widgets to trigger delayed show
+     * or hide actions for auto hide container on auto hide tab mouse over
+     */
+    void handleAutoHideWidgetEvent(QEvent* e, QWidget* w);
+
 public:
 	/**
 	 * Default Constructor
@@ -180,7 +222,7 @@ public:
 	 * \return Returns the dock area widget that contains the new DockWidget
 	 */
 	CDockAreaWidget* addDockWidget(DockWidgetArea area, CDockWidget* Dockwidget,
-		CDockAreaWidget* DockAreaWidget = nullptr);
+		CDockAreaWidget* DockAreaWidget = nullptr, int Index = -1);
 
 	/**
 	 * Removes dockwidget
@@ -216,6 +258,18 @@ public:
 	 */
 	QList<CDockAreaWidget*> openedDockAreas() const;
 
+	/**
+	 * Returns a list for all open dock widgets in all open dock areas
+	 */
+	QList<CDockWidget*> openedDockWidgets() const;
+
+	/**
+	 * This function returns true, if the container has open dock areas.
+	 * This functions is a little bit faster than calling openedDockAreas().isEmpty()
+	 * because it returns as soon as it finds an open dock area
+	 */
+	bool hasOpenDockAreas() const;
+
     /**
      * This function returns true if this dock area has only one single
      * visible dock widget.
@@ -265,6 +319,36 @@ public:
 	 */
 	void closeOtherAreas(CDockAreaWidget* KeepOpenArea);
 
+	/**
+	 * Returns the side tab widget for the given area
+	 */
+	CAutoHideSideBar* sideTabBar(SideBarLocation area) const;
+
+
+	/**
+	 * Access function for auto hide widgets
+	 */
+	QList<CAutoHideDockContainer*> autoHideWidgets() const;
+
+	/**
+	 * Returns the content rectangle without the autohide side bars
+	 */
+	QRect contentRect() const;
+
+	/**
+	 * Returns the content rectangle mapped to global space.
+	 * The content rectangle is the rectangle of the dock manager widget minus
+	 * the auto hide side bars. So that means, it is the geometry of the
+	 * internal root splitter mapped to global space.
+	 */
+	QRect contentRectGlobal() const;
+
+	/**
+	 * Returns the dock manager that owns this container
+	 */
+	CDockManager* dockManager() const;
+
+
 Q_SIGNALS:
 	/**
 	 * This signal is emitted if one or multiple dock areas has been added to
@@ -273,6 +357,11 @@ Q_SIGNALS:
 	 */
 	void dockAreasAdded();
 
+	/**
+	 * This signal is emitted, if a new auto hide widget has been created.
+	 */
+	void autoHideWidgetCreated(ads::CAutoHideDockContainer* AutoHideWidget);
+
 	/**
 	 * This signal is emitted if one or multiple dock areas has been removed
 	 */

src/DockFocusController.cpp

@@ -8,6 +8,7 @@
 //============================================================================
 //                                   INCLUDES
 //============================================================================
+#include <AutoHideTab.h>
 #include "DockFocusController.h"
 
 #include <algorithm>
@@ -32,6 +33,8 @@
 
 namespace ads
 {
+static const char* const FocusedDockWidgetProperty = "FocusedDockWidget";
+
 /**
  * Private data class of CDockFocusController class (pimpl)
  */
@@ -40,7 +43,7 @@ struct DockFocusControllerPrivate
 	CDockFocusController *_this;
 	QPointer<CDockWidget> FocusedDockWidget = nullptr;
 	QPointer<CDockAreaWidget> FocusedArea = nullptr;
-	CDockWidget* OldFocusedDockWidget = nullptr;
+	QPointer<CDockWidget> OldFocusedDockWidget = nullptr;
 #ifdef Q_OS_LINUX
      QPointer<CFloatingDockContainer> FloatingWidget = nullptr;
 #endif
@@ -57,8 +60,8 @@ struct DockFocusControllerPrivate
 	 * the dock area that it belongs to
 	 */
 	void updateDockWidgetFocus(CDockWidget* DockWidget);
-};
-// struct DockFocusControllerPrivate
+}; // struct DockFocusControllerPrivate
+
 
 
 //===========================================================================
@@ -125,7 +128,7 @@ void DockFocusControllerPrivate::updateDockWidgetFocus(CDockWidget* DockWidget)
 
 	if (Window)
 	{
-		Window->setProperty("FocusedDockWidget", QVariant::fromValue<CDockWidget*>(DockWidget));
+        Window->setProperty(FocusedDockWidgetProperty, QVariant::fromValue(QPointer<CDockWidget>(DockWidget)));
 	}
 	CDockAreaWidget* NewFocusedDockArea = nullptr;
 	if (FocusedDockWidget)
@@ -161,7 +164,7 @@ void DockFocusControllerPrivate::updateDockWidgetFocus(CDockWidget* DockWidget)
 
     if (NewFloatingWidget)
     {
-    	NewFloatingWidget->setProperty("FocusedDockWidget", QVariant::fromValue(DockWidget));
+        NewFloatingWidget->setProperty(FocusedDockWidgetProperty, QVariant::fromValue(QPointer<CDockWidget>(DockWidget)));
     }
 
 
@@ -183,7 +186,7 @@ void DockFocusControllerPrivate::updateDockWidgetFocus(CDockWidget* DockWidget)
 	}
 #endif
 
-    if (old == DockWidget && !ForceFocusChangedSignal)
+	if (old == DockWidget && !ForceFocusChangedSignal)
     {
     	return;
     }
@@ -243,13 +246,13 @@ void CDockFocusController::onFocusWindowChanged(QWindow *focusWindow)
 		return;
 	}
 
-	auto vDockWidget = focusWindow->property("FocusedDockWidget");
+    auto vDockWidget = focusWindow->property(FocusedDockWidgetProperty);
 	if (!vDockWidget.isValid())
 	{
 		return;
 	}
 
-	auto DockWidget = vDockWidget.value<CDockWidget*>();
+    auto DockWidget = vDockWidget.value<QPointer<CDockWidget>>();
 	if (!DockWidget)
 	{
 		return;
@@ -262,7 +265,7 @@ void CDockFocusController::onFocusWindowChanged(QWindow *focusWindow)
 //===========================================================================
 void CDockFocusController::onApplicationFocusChanged(QWidget* focusedOld, QWidget* focusedNow)
 {
-	Q_UNUSED(focusedOld);
+    Q_UNUSED(focusedOld);
 
 	if (d->DockManager->isRestoringState())
 	{
@@ -309,6 +312,14 @@ void CDockFocusController::setDockWidgetTabFocused(CDockWidgetTab* Tab)
 }
 
 
+//===========================================================================
+void CDockFocusController::clearDockWidgetFocus(CDockWidget* dockWidget)
+{
+	dockWidget->clearFocus();
+	updateDockWidgetFocusStyle(dockWidget, false);
+}
+
+
 //===========================================================================
 void CDockFocusController::setDockWidgetFocused(CDockWidget* focusedNow)
 {
@@ -376,13 +387,13 @@ void CDockFocusController::notifyFloatingWidgetDrop(CFloatingDockContainer* Floa
 		return;
 	}
 
-	auto vDockWidget = FloatingWidget->property("FocusedDockWidget");
+    auto vDockWidget = FloatingWidget->property(FocusedDockWidgetProperty);
 	if (!vDockWidget.isValid())
 	{
 		return;
 	}
 
-	auto DockWidget = vDockWidget.value<CDockWidget*>();
+    auto DockWidget = vDockWidget.value<QPointer<CDockWidget>>();
 	if (DockWidget)
 	{
 		DockWidget->dockAreaWidget()->setCurrentDockWidget(DockWidget);