An additional fix for #496 Nonfloatable hidden window disappears on drop in empty area

* start adaption of PyQt5 bindings to Qt-ADS 4.0

* Update PyQt bindings

* Fix Python bindings build on Linux

---------

Co-authored-by: Mira Weller <mweller@seemoo.tu-darmstadt.de>

.github/workflows/linux-builds.yml

@@ -1,4 +1,4 @@
-name: linux-builds
+ilds
 
 on: [push]
 
@@ -6,7 +6,7 @@ jobs:
   build:
     strategy:
       matrix:
-        os: [ubuntu-latest, ubuntu-18.04, ubuntu-16.04]
+        os: [ubuntu-20.04, ubuntu-18.04]
 
     runs-on: ${{ matrix.os }}
     
@@ -16,8 +16,44 @@ jobs:
       run: |
         sudo apt-get update --fix-missing
         sudo apt-get install qt5-default
-        sudo apt-get install libqt5x11extras5-dev
+        sudo apt-get install qtbase5-private-dev
     - name: qmake
       run: qmake
     - name: make
       run: make -j4
+      
+  build_ubuntu_2204:
+    runs-on: ubuntu-22.04
+    steps:
+    - uses: actions/checkout@v2
+    - name: Cache Qt
+      id: cache-qt-6-4
+      uses: actions/cache@v1  # not v2!
+      with:
+        path: ../Qt/6.4.2
+        key: ${{ runner.os }}-QtCache-Qt6-4
+
+    - name: Install Qt
+      uses: jurplel/install-qt-action@v2
+      with:
+        version: '6.4.2'
+        host: 'linux'
+        target: 'desktop'
+        install-deps: true
+        cached: ${{ steps.cache-qt-6-4.outputs.cache-hit }}
+        setup-python: true
+        tools: ''
+        tools-only: false
+
+    - name: Install needed xkbcommon symlink
+      run: sudo apt-get install libxkbcommon-dev -y    
+
+    - name: Ubuntu and Qt version
+      run: |
+        cat /etc/issue
+        echo number of processors: $(nproc)
+        qmake -v
+    - name: qmake
+      run: qmake
+    - name: make
+      run: make -j$(nproc)

.travis.yml

@@ -9,8 +9,6 @@ matrix:
     os: linux
     dist: trusty
     group: stable
-    before_install:
-      - sudo apt-get -y install libqt5x11extras5-dev
     addons:
       apt:
         sources:
@@ -20,8 +18,6 @@ matrix:
         packages:
         - qt55base
         - qt55tools
-        - qt55x11extras
-        - libqt5x11extras5-dev
         - gcc-9
         - g++-9
     script:
@@ -39,8 +35,6 @@ matrix:
     services:
         - xvfb
     compiler: gcc
-    before_install:
-      - sudo apt-get -y install libqt5x11extras5-dev
     addons:
       apt:
         sources:
@@ -50,8 +44,6 @@ matrix:
         packages:
         - qt514base
         - qt514tools
-        - qt514x11extras
-        - libqt5x11extras5-dev
         - gcc-9
         - g++-9
         - libc6-i386
@@ -73,8 +65,6 @@ matrix:
     services:
         - xvfb
     compiler: gcc
-    before_install:
-      - sudo apt-get -y install libqt5x11extras5-dev  
     addons:  
       apt:
         sources:
@@ -84,8 +74,6 @@ matrix:
         packages:
         - qt514base
         - qt514tools
-        - qt514x11extras
-        - libqt5x11extras5-dev
         - gcc-9
         - g++-9
         - libc6-i386
@@ -107,8 +95,6 @@ matrix:
     services:
         - xvfb
     compiler: gcc
-    before_install:
-      - sudo apt-get -y install libqt5x11extras5-dev
     addons:
       apt:
         sources:
@@ -118,8 +104,6 @@ matrix:
         packages:
         - qt514base
         - qt514tools
-        - qt514x11extras
-        - libqt5x11extras5-dev
         - gcc-9
         - g++-9
         - libc6-i386
@@ -147,8 +131,6 @@ matrix:
     services:
         - xvfb
     compiler: gcc
-    before_install:
-      - sudo apt-get -y install libqt5x11extras5-dev
     addons:
       apt:
         sources:
@@ -158,8 +140,6 @@ matrix:
         packages:
         - qt514base
         - qt514tools
-        - qt514x11extras
-        - libqt5x11extras5-dev
         - gcc-9
         - g++-9
         - libc6-i386

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}

ads.pri

@@ -1,6 +1,14 @@
 
 CONFIG(debug, debug|release){
-    win32 {
+    win32-g++ {
+    	versionAtLeast(QT_VERSION, 5.15.0) {
+    		LIBS += -lqtadvanceddocking
+    	}
+    	else {
+    		LIBS += -lqtadvanceddockingd
+    	}
+    }
+    else:msvc {
         LIBS += -lqtadvanceddockingd
     }
     else:mac {
@@ -17,5 +25,4 @@ else{
 
 unix:!macx {
     LIBS += -lxcb
-    QT += x11extras
 }

adsConfig.cmake

@@ -2,7 +2,4 @@ include(CMakeFindDependencyMacro)
 find_dependency(Qt5Core ${REQUIRED_QT_VERSION} REQUIRED)
 find_dependency(Qt5Gui ${REQUIRED_QT_VERSION} REQUIRED)
 find_dependency(Qt5Widgets ${REQUIRED_QT_VERSION} REQUIRED)
-if(UNIX AND NOT APPLE)
-    find_dependency(Qt5X11Extras ${REQUIRED_QT_VERSION} REQUIRED)
-endif()
 include("${CMAKE_CURRENT_LIST_DIR}/adsTargets.cmake")

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 ${ads_demo_SRCS})
@@ -23,7 +25,7 @@ target_link_libraries(AdvancedDockingSystemDemo PUBLIC Qt${QT_VERSION_MAJOR}::Co
 if(WIN32 AND QT_VERSION_MAJOR LESS 6)
     target_link_libraries(AdvancedDockingSystemDemo PUBLIC Qt${QT_VERSION_MAJOR}::AxContainer)
 endif()
-target_link_libraries(AdvancedDockingSystemDemo PRIVATE qtadvanceddocking)
+target_link_libraries(AdvancedDockingSystemDemo PRIVATE qt${QT_VERSION_MAJOR}advanceddocking)
 set_target_properties(AdvancedDockingSystemDemo PROPERTIES 
     AUTOMOC ON
     AUTORCC ON

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"
@@ -79,9 +82,25 @@
 #include "FloatingDockContainer.h"
 #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
+}
+
+
 /**
  * Function returns a features string with closable (c), movable (m) and floatable (f)
  * features. i.e. The following string is for a not closable but movable and floatable
@@ -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
 	 */
@@ -417,6 +468,23 @@ void MainWindowPrivate::createContent()
 	DockWidget = createCalendarDockWidget();
 	DockWidget->setTabToolTip(QString("Tab ToolTip\nHodie est dies magna"));
 	auto DockArea = DockManager->addDockWidget(ads::CenterDockWidgetArea, DockWidget, TopDockArea);
+    // Now we create a action to test resizing of DockArea widget
+	auto Action = ui.menuTests->addAction(QString("Resize %1").arg(DockWidget->windowTitle()));
+	QObject::connect(Action, &QAction::triggered, [DockArea]()
+	{
+		// Resizing only works, if the Splitter is visible and has a valid
+		// sizes
+		auto Splitter = ads::internal::findParent<ads::CDockSplitter*>(DockArea);
+		if (!Splitter)
+		{
+			return;
+		}
+		// We change the sizes of the splitter that contains the Calendar 1 widget
+		// to resize the dock widget
+		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
@@ -441,21 +509,42 @@ 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);
 
-    auto Action = ui.menuTests->addAction(QString("Set %1 Floating").arg(DockWidget->windowTitle()));
+	// 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()));
     Action = ui.menuTests->addAction(QString("Set %1 As Current Tab").arg(DockWidget->windowTitle()));
     DockWidget->connect(Action, SIGNAL(triggered()), SLOT(setAsCurrentTab()));
     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 (!ads::CDockManager::testConfigFlag(ads::CDockManager::OpaqueUndocking))
-    {
-    	DockManager->addDockWidget(ads::CenterDockWidgetArea, createActiveXWidget(), RighDockArea);
-    }
+    DockManager->addDockWidget(ads::CenterDockWidgetArea, createActiveXWidget(), RighDockArea);
 #endif
 #endif
 
@@ -464,6 +553,10 @@ 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);
 }
 
 
@@ -502,12 +595,36 @@ 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()));
@@ -515,6 +632,12 @@ 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);
 }
 
 
@@ -574,7 +697,7 @@ 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
@@ -604,25 +727,31 @@ 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
 	// CDockManager::setConfigFlag(CDockManager::EqualSplitOnInsertion, true);
+	
+	// uncomment if you would like to close tabs with the middle mouse button, web browser style
+	// CDockManager::setConfigFlag(CDockManager::MiddleMouseButtonClosesTab, true);
 
 	// Now create the dock manager and its content
 	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();
@@ -694,13 +823,14 @@ 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 << ")";
 }
 
 
@@ -724,6 +854,8 @@ 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);
@@ -735,31 +867,38 @@ 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;
 }
 
 
@@ -777,6 +916,20 @@ 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()
 {
@@ -811,3 +964,45 @@ 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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demo/images/ads_tile_blue_light.svg

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+ </g>
+</svg>

demo/images/ads_tile_orange.svg

@@ -0,0 +1,33 @@
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+  <g stroke-width=".26458" aria-label="Qt Advanced ">
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+ </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/main.py

@@ -215,6 +215,17 @@ class MainWindow(MainWindowUI, MainWindowBase):
         dock_widget = self.create_calendar_dock_widget()
         dock_widget.setTabToolTip("Tab ToolTip\nHodie est dies magna")
         dock_area = self.dock_manager.addDockWidget(QtAds.CenterDockWidgetArea, dock_widget, top_dock_area)
+        # Now we create a action to test resizing of DockArea widget
+        action = self.menuTests.addAction("Resize {}".format(dock_widget.windowTitle()))
+        def action_triggered():
+            splitter = QtAds.internal.findParent(QtAds.CDockSplitter, dock_area)
+            if not splitter:
+                return
+            # We change the sizes of the splitter that contains the Calendar 1 widget
+            # to resize the dock widget
+            width = splitter.width()
+            splitter.setSizes([width * 2/3, width * 1/3])
+        action.triggered.connect(action_triggered)
 
         # Now we add a custom button to the dock area title bar that will create
         # new editor widgets when clicked

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

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+   width="1023.99"
+   height="1023.99"
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+   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"
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-     showgrid="false"
-     inkscape:zoom="0.32593202"
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      inkscape:window-x="1912"
      inkscape:window-y="-8"
      inkscape:window-maximized="1"
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+     inkscape:current-layer="svg26"
+     fit-margin-top="0"
+     fit-margin-left="0"
+     fit-margin-right="0"
+     fit-margin-bottom="0" />
   <desc
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-  <path
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-     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
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-     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
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-     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">
+   <path d="m1416.3 726.04q-93.219 0-148.72-61.942-55.196-61.942-55.196-160.99 0-105.18 56.729-168.35 57.035-63.475 155.47-63.475 88.926 0 143.82 61.022 55.196 60.715 55.196 159.45 0 109.16-56.422 171.72-17.479 19.625-38.944 32.811l106.71 81.26h-51.209l-83.1-66.848q-37.41 15.332-84.327 15.332zm3.0664-427.15q-76.66 0-126.34 55.502-49.369 55.502-49.369 145.35 0 90.766 46.916 144.74 46.916 53.662 125.11 53.662 81.567 0 129.1-53.049 47.53-53.356 47.53-148.41 0-93.219-46.61-145.35-46.303-52.436-126.34-52.436z"/>
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+  <g transform="translate(581.23 1750.5)">
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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

@@ -11,7 +11,6 @@
   - [`TabCloseButtonIsToolButton`](#tabclosebuttonistoolbutton)
   - [`AllTabsHaveCloseButton`](#alltabshaveclosebutton)
   - [`RetainTabSizeWhenCloseButtonHidden`](#retaintabsizewhenclosebuttonhidden)
-  - [`OpaqueUndocking`](#opaqueundocking)
   - [`DragPreviewIsDynamic`](#dragpreviewisdynamic)
   - [`DragPreviewShowsContentPixmap`](#dragpreviewshowscontentpixmap)
   - [`DragPreviewHasWindowFrame`](#dragpreviewhaswindowframe)
@@ -27,6 +26,29 @@
   - [`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 +58,15 @@
 ## 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 +78,9 @@ 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
@@ -146,37 +169,6 @@ constant, that means, if enabled, the tabs need more space.
 
 ![AllTabsHaveCloseButton false](cfg_flag_RetainTabSizeWhenCloseButtonHidden_true.png)
 
-### `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.
-
-![OpaqueUndocking true](opaque_undocking.gif)
-
-If you would like to test opaque undocking, you should set the pedefined config
-flags `CDockManager::DefaultOpaqueConfig`.
-
-```c++
-CDockManager::setConfigFlags(CDockManager::DefaultOpaqueConfig);
-```
-
-If this flag is cleared (default), 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.
-
-![OpaqueUndocking true](non_opaque_undocking.gif)
-
-The drag preview widget can be configured by a number of global dock manager flags:
-
-- `DragPreviewIsDynamic`
-- `DragPreviewShowsContentPixmap`
-- `DragPreviewHasWindowFrame`
-
-Non-opaque undocking is enabled by default. If you would like to enable it
-explicitely, you can do this by setting the predefined configuration flags
-`CDockManager::DefaultNonOpaqueConfig`.
-
-```c++
-CDockManager::setConfigFlags(CDockManager::DefaultNonOpaqueConfig);
-```
-
 ### `DragPreviewIsDynamic`
 
 If non-opaque undocking is enabled, this flag defines the behavior of the drag 
@@ -275,7 +267,8 @@ 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 +304,7 @@ 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 +324,7 @@ 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 +457,189 @@ 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.
+
+### `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 +726,4 @@ 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 "${CMAKE_CURRENT_SOURCE_DIR}/../../src")
+target_link_libraries(AutoHideExample PRIVATE qt${QT_VERSION_MAJOR}advanceddocking)
+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

@@ -12,19 +12,7 @@ from PyQtAds import QtAds
 
 UI_FILE = os.path.join(os.path.dirname(__file__), 'mainwindow.ui')
 MainWindowUI, MainWindowBase = uic.loadUiType(UI_FILE)
-
-import demo_rc # pyrcc5 demo\demo.qrc -o examples\centralWidget\demo_rc.py
-
-
-def svg_icon(filename: str):
-    '''Helper function to create an SVG icon'''
-    # This is a workaround, because because in item views SVG icons are not
-    # properly scaled and look blurry or pixelate
-    icon = QIcon(filename)
-    icon.addPixmap(icon.pixmap(92))
-    return icon
     
-
 class MainWindow(MainWindowUI, MainWindowBase):
 
     def __init__(self, parent=None):
@@ -46,27 +34,26 @@ class MainWindow(MainWindowUI, MainWindowBase):
         central_dock_area.setAllowedAreas(QtAds.DockWidgetArea.OuterDockAreas)
         
         # create other dock widgets
-        file_tree = QTreeView()
-        file_tree.setFrameShape(QFrame.NoFrame)
-        file_model = QFileSystemModel(file_tree)
-        file_model.setRootPath(QDir.currentPath())
-        file_tree.setModel(file_model)
-        data_dock_widget = QtAds.CDockWidget("File system")
-        data_dock_widget.setWidget(file_tree)
-        data_dock_widget.resize(150, 250)
-        data_dock_widget.setMinimumSize(100, 250)
-        file_area = self.dock_manager.addDockWidget(QtAds.DockWidgetArea.LeftDockWidgetArea, data_dock_widget, central_dock_area)
-        self.menuView.addAction(data_dock_widget.toggleViewAction())
-
         table = QTableWidget()
         table.setColumnCount(3)
         table.setRowCount(10)
-        table_dock_widget = QtAds.CDockWidget("Table")
+        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)
-        self.dock_manager.addDockWidget(QtAds.DockWidgetArea.BottomDockWidgetArea, table_dock_widget, file_area)
+        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()
@@ -76,7 +63,7 @@ class MainWindow(MainWindowUI, MainWindowBase):
         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)
+        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())
         
@@ -84,7 +71,6 @@ class MainWindow(MainWindowUI, MainWindowBase):
         
     def create_perspective_ui(self):
         save_perspective_action = QAction("Create Perspective", self)
-        save_perspective_action.setIcon(svg_icon(":/adsdemo/images/picture_in_picture.svg"))
         save_perspective_action.triggered.connect(self.save_perspective)
         perspective_list_action = QWidgetAction(self)
         self.perspective_combobox = QComboBox(self)

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/CMakeLists.txt

@@ -9,7 +9,7 @@ add_executable(CentralWidgetExample WIN32
     mainwindow.ui
 )
 target_include_directories(CentralWidgetExample PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/../../src")
-target_link_libraries(CentralWidgetExample PRIVATE qtadvanceddocking)
+target_link_libraries(CentralWidgetExample PRIVATE qt${QT_VERSION_MAJOR}advanceddocking)
 target_link_libraries(CentralWidgetExample PUBLIC Qt${QT_VERSION_MAJOR}::Core 
                                                   Qt${QT_VERSION_MAJOR}::Gui 
                                                   Qt${QT_VERSION_MAJOR}::Widgets)

examples/centralwidget/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/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/deleteonclose/CMakeLists.txt

@@ -7,7 +7,7 @@ add_executable(DeleteOnCloseTest WIN32
     main.cpp
 )
 target_include_directories(DeleteOnCloseTest PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/../../src")
-target_link_libraries(DeleteOnCloseTest PRIVATE qtadvanceddocking)
+target_link_libraries(DeleteOnCloseTest PRIVATE qt${QT_VERSION_MAJOR}advanceddocking)
 target_link_libraries(DeleteOnCloseTest PUBLIC Qt${QT_VERSION_MAJOR}::Core 
                                                Qt${QT_VERSION_MAJOR}::Gui 
                                                Qt${QT_VERSION_MAJOR}::Widgets)

examples/deleteonclose/main.cpp

@@ -41,19 +41,39 @@ int main(int argc, char *argv[])
         now->widget()->setFocus();
     });
 
-    QAction *action = new QAction("New Delete On Close", &w);
+    QAction *action = new QAction("New [DockWidgetDeleteOnClose]", &w);
     w.menuBar()->addAction(action);
 
     int i = 0;
     QObject::connect(action, &QAction::triggered, [&]() {
-        auto dw = new ads::CDockWidget(QStringLiteral("test doc %1").arg(i++), &w);
+        auto dw = new ads::CDockWidget(QStringLiteral("test %1 [DockWidgetDeleteOnClose]").arg(i++), &w);
         auto editor = new QTextEdit(QStringLiteral("lorem ipsum..."), dw);
         dw->setWidget(editor);
         dw->setFeature(ads::CDockWidget::DockWidgetDeleteOnClose, true);
         auto area = dockManager->addDockWidgetTab(ads::CenterDockWidgetArea, dw);
         qDebug() << "doc dock widget created!" << dw << area;
     });
-
+	
+	auto dw = new ads::CDockWidget(QStringLiteral("test %1 [DeleteContentOnClose]").arg(i++), &w);
+	auto editor = new QTextEdit(QStringLiteral("recreated lorem ipsum......"), dw);
+	dw->setWidget(editor);
+	dw->setFeature(ads::CDockWidget::DeleteContentOnClose, true);
+	dw->setWidgetFactory([](QWidget* dw)
+	{
+		static int timesRecreated = 0;
+		return new QTextEdit(QStringLiteral("recreated lorem ipsum... times %1").arg(++timesRecreated), dw);
+	});
+	auto area = dockManager->addDockWidgetTab(ads::CenterDockWidgetArea, dw);
+	qDebug() << "DeleteContentOnClose dock widget created!" << dw << area;
+	
+	action = new QAction("Toggle [DeleteContentOnClose]", &w);
+    w.menuBar()->addAction(action);
+	
+	QObject::connect(action, &QAction::triggered, [dw]() {
+		dw->toggleView(dw->isClosed());
+		qDebug() << QString("dock widget %1! contents widget %2!").arg(dw->isClosed() ? "closed" : "open", dw->widget() ? "created" : "deleted");
+    });
+	
     action = new QAction("New", &w);
     w.menuBar()->addAction(action);
     QObject::connect(action, &QAction::triggered, [&]() {

examples/dockindock/CMakeLists.txt

@@ -12,7 +12,7 @@ add_executable(DockInDockExample WIN32
     mainframe.cpp
 )
 target_include_directories(DockInDockExample PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/../../src")
-target_link_libraries(DockInDockExample PRIVATE qtadvanceddocking)
+target_link_libraries(DockInDockExample PRIVATE qt${QT_VERSION_MAJOR}advanceddocking)
 target_link_libraries(DockInDockExample PUBLIC Qt${QT_VERSION_MAJOR}::Core 
                                            Qt${QT_VERSION_MAJOR}::Gui 
                                            Qt${QT_VERSION_MAJOR}::Widgets)

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/dockindock.py

@@ -0,0 +1,203 @@
+import sys
+
+from PyQt5.QtWidgets import (QApplication, QWidget, QVBoxLayout, QMessageBox,
+                             QInputDialog, QMenu, QLineEdit)
+from PyQt5.QtGui import QIcon
+from PyQtAds import QtAds
+
+from dockindockmanager import DockInDockManager
+from perspectiveactions import LoadPerspectiveAction, RemovePerspectiveAction
+
+
+class DockInDockWidget(QWidget):
+    def __init__(self, parent, perspectives_manager: 'PerspectivesManager', can_create_new_groups: bool = False, top_level_widget = None):
+        super().__init__(parent)
+        
+        if top_level_widget is not None:
+            self.__can_create_new_groups = top_level_widget.can_create_new_groups
+        else:
+            self.__can_create_new_groups = can_create_new_groups
+        self.__top_level_dock_widget = top_level_widget if top_level_widget else self
+        self.__perspectives_manager = perspectives_manager        
+        self.__new_perspective_default_name: str = ''
+        
+        layout = QVBoxLayout(self)
+        layout.setContentsMargins(0,0,0,0)
+        self.__mgr = DockInDockManager(self)
+        layout.addWidget(self.__mgr)
+        
+    def getManager(self) -> 'DockInDockManager':
+        return self.__mgr
+        
+    def getTopLevelDockWidget(self) -> 'DockInDockWidget':
+        return self.__top_level_dock_widget
+        
+    def canCreateNewGroups(self) -> bool:
+        return self.__can_create_new_groups
+        
+    def getPerspectivesManager(self) -> 'PerspectivesManager':
+        return self.__perspectives_manager
+        
+    def addTabWidget(self, widget: QWidget, name: str, after: QtAds.CDockAreaWidget, icon = QIcon()) -> QtAds.CDockAreaWidget:
+        for existing in self.getTopLevelDockWidget().getManager().allDockWidgets(True, True):
+            if existing[1].objectName() == name:
+                QMessageBox.critical(self, "Error", "Name '" + name + "' already in use")
+                return
+                
+        dock_widget = QtAds.CDockWidget(name)
+        dock_widget.setWidget(widget)
+        dock_widget.setIcon(icon)
+        
+        # Add the dock widget to the top dock widget area
+        return self.__mgr.addDockWidget(QtAds.CenterDockWidgetArea, dock_widget, after)
+        
+    def isTopLevel(self) -> bool:
+        return not self.objectName()
+        
+    def getGroupNameError(self, group_name: str) -> str:
+        if not group_name:
+            return "Group must have a non-empty name"
+            
+        dock_managers = self.__mgr.allManagers(True, True)
+        for mgr in dock_managers:
+            if mgr.getGroupName() == group_name:
+                return "Group name '" + group_name + "' already used"
+                
+        return ""
+        
+    def createGroup(self, group_name: str, insert_pos: QtAds.CDockAreaWidget, icon = QIcon()) -> 'DockInDockWidget':
+        error = self.getGroupNameError(group_name)
+        if error:
+            QMessageBox.critical(None, "Error", error)
+            return
+            
+        child = DockInDockWidget(self, self.__top_level_dock_widget, self.__perspectives_manager)
+        child.setObjectName(group_name)
+        
+        dock_widget = QtAds.CDockWidget(group_name)
+        dock_widget.setWidget(child)
+        dock_widget.setIcon(icon)
+        
+        insert_pos = self.__mgr.addDockWidget(QtAds.CenterDockWidgetArea, dock_widget, insert_pos)
+
+        return child, insert_pos
+        
+    def destroyGroup(self, widget_to_remove: 'DockInDockWidget') -> None:
+        top_level_widget = widget_to_remove.getTopLevelDockWidget()
+        
+        if top_level_widget and top_level_widget != widget_to_remove:
+            for dock_widget in widget_to_remove.getManager().getWidgetsInGUIOrder(): #don't use allDockWidgets to preserve sub-groups
+                MoveDockWidgetAction.move(dock_widget, top_level_widget.getManager())
+            assert not widget_to_remove.getManager().allDockWidgets(True, True)
+
+            # find widget's parent:
+            for dock_widget in top_level_widget.getManager().allDockWidgets(True, True):
+                if dockwidget[1].widget() == widget_to_remove:
+                    dockwidget[0].removeDockWidget(dockwidget[1])
+                    del dockwidget[1]
+                    # delete widgetToRemove; automatically deleted when dockWidget is deleted
+                    widget_to_remove = None
+                    break
+
+            assert widget_to_remove == None
+        else:
+            assert False
+            
+    def attachViewMenu(self, menu: QMenu) -> None:
+        menu.aboutToShow.connect(self.autoFillAttachedViewMenu)
+        
+    def autoFillAttachedViewMenu(self) -> None:
+        menu = self.sender()
+        
+        if menu:
+            menu.clear()
+            self.setupViewMenu(menu)
+        else:
+            assert False
+            
+    def setupViewMenu(self, menu):
+        dock_managers = self.__mgr.allManagers(True, True)
+        
+        has_perspectives_menu = False
+        if self.getTopLevelDockWidget() == self:
+            has_perspectives_menu = (self.__perspectives_manager != None)
+        else:
+            assert False
+            
+        organize = menu
+        if has_perspectives_menu:
+            organize = menu.addMenu("Organize")
+            
+        self.setupMenu(organize, dock_managers)
+        
+        if has_perspectives_menu:
+            perspectives = menu.addMenu("Perspectives")
+            self.fillPerspectivesMenu(perspectives)
+            
+    def setupMenu(self, menu: QMenu, move_to: 'list[DockInDockManager]') -> None:
+        self.__mgr.fillViewMenu(menu, move_to)
+        menu.addSeparator()
+        move_menu = menu.addMenu("Move")
+        self.__mgr.fillMoveMenu(move_menu, move_to)
+            
+    def fillPerspectivesMenu(self, menu: QMenu):
+        menu.addAction("Create perspective...", self.createPerspective)
+        perspectives_names = []
+        if self.__perspectives_manager:
+            perspectives_names = self.__perspectives_manager.perspectiveNames()
+            
+        if perspectives_names:
+            load = menu.addMenu("Load perspective")
+            for name in perspectives_names:
+                load.addAction(LoadPerspectiveAction(load, name, self))
+            remove = menu.addMenu("Remove perspective")
+            for name in perspectives_names:
+                remove.addAction(RemovePerspectiveAction(remove, name, self))
+                
+    def setNewPerspectiveDefaultName(default_name: str) -> None:
+        self.__new_perspective_default_name = default_name
+        
+    def createPerspective(self) -> None:
+        if not self.__perspectives_manager:
+            return
+            
+        name = self.__new_perspective_default_name
+        if self.__new_perspective_default_name:
+            index = 2
+            while name in self.__perspectives_manager.perspectiveNames():
+                name = f"{self.__new_perspective_default_name}({index})"
+                index += 1
+                
+        while True:
+            name, ok = QInputDialog.getText(None, "Create perspective", "Enter perspective name", QLineEdit.Normal, name)
+            if ok:
+                if not name:
+                    QMessageBox.critical(None, "Error", "Perspective name cannot be empty")
+                    continue
+                elif name in self.__perspectives_manager.perspectiveNames():
+                    if QMessageBox.critical(None, "Error", f"Perspective '{name}' already exists, overwrite it?", QMessageBox.Yes | QMessageBox.No, QMessageBox.No) == QMessageBox.No:
+                        continue
+                    
+                self.__perspectives_manager.addPerspective(name, self)
+                break
+            else:
+                break
+                
+    def dumpStatus(self, echo: callable = print, widget: QtAds.CDockWidget = None, tab: str = '', suffix: str = '') -> str:
+        if widget is not None:
+            as_mgr = DockInDockManager.dockInAManager(widget)
+            if as_mgr:
+                as_mgr.parent().dumpStatus(tab=tab)
+            else:
+                echo(tab + widget.objectName() + suffix)
+        else:
+            echo(tab + "Group: " + self.getManager().getGroupName())
+            tab += "   "
+            visible_widgets = set()
+            for widget in self.getManager().getWidgetsInGUIOrder():
+                visible_widgets.add(widget)
+                self.dumpStatus(widget=widget, tab=tab)
+                
+            for closed in self.getManager().dockWidgetsMap().values():
+                if not closed in visible_widgets:
+                    self.dumpStatus(widget=closed, tab=tab, suffix=" (closed)")

examples/dockindock/dockindockmanager.py

@@ -0,0 +1,214 @@
+from PyQt5.QtWidgets import QAction, QMenu, QInputDialog, QLineEdit
+from PyQt5.QtCore import QSettings
+
+from PyQtAds import QtAds
+
+CHILD_PREFIX = "Child-"
+
+class DockInDockManager(QtAds.CDockManager):
+    def __init__(self, parent: 'DockInDockWidget'):
+        super().__init__()
+        self.__parent = parent
+
+    def parent(self) -> 'DockInDockWidget':
+        return self.__parent
+    
+    def fillViewMenu(self, menu: QMenu, move_to: 'dict[DockInDockManager]') -> None:
+        from dockindock import DockInDockWidget # Prevent cyclic import
+        
+        widgets_map = self.dockWidgetsMap()
+        for key, value in widgets_map.items():
+            widget = value.widget()
+            action = value.toggleViewAction()
+            
+            if isinstance(widget, DockInDockWidget):
+                sub_menu = menu.addMenu(key)
+                
+                sub_menu.addAction(action)
+                sub_menu.addSeparator()
+                
+                widget.setupMenu(sub_menu, move_to)
+            else:
+                menu.addAction(action)
+                
+        if self.parent().canCreateNewGroups():
+            # see how this works, to create it in the right place, 
+            # and also to have load perspective work when some groups are missing
+            menu.addSeparator()
+            menu.addAction(CreateChildDockAction(self.__parent, menu))
+
+            if self.parent().getTopLevelDockWidget().getManager() != self:
+                menu.addAction(DestroyGroupAction( self.parent, menu))
+                
+    def fillMoveMenu(self, menu: QMenu, move_to: 'list[DockInDockManager]') -> None:
+        widgets_map = self.dockWidgetsMap()
+        for key, value in widgets_map.items():
+            sub_menu = menu.addMenu(key)
+            
+            for mgr in move_to:
+                # iterate over all possible target managers
+                if mgr == self:
+                    pass # if dock is already in mgr, no reason to move it there
+                elif mgr == DockInDockManager.dockInAManager(value):
+                    pass # if target is the group itself, can't move it there, would make no sense
+                else:
+                    sub_menu.addAction(MoveDockWidgetAction(value, mgr, sub_menu))
+    
+    def addPerspectiveRec(self, name: str) -> None:
+        managers = self.allManagers(True, True)
+        
+        for child in managers:
+            child.addPerspective(name)
+            
+    def openPerspectiveRec(self, name: str) -> None:
+        managers = self.allManagers(True, True)
+        
+        for child in managers:
+            child.openPerspective(name)
+            
+    def getGroupName(self) -> str:
+        return self.parent().objectName()
+        
+    def getPersistGroupName(self) -> str:
+        group = "Top"
+        if self.getGroupName():
+            group = CHILD_PREFIX + self.getGroupName()
+        return group
+        
+    def getGroupNameFromPersistGroupName(self, persist_group_name) -> str:
+        if persist_group_name.startswith(CHILD_PREFIX):
+            persist_group_name = persist_group_name[len(CHILD_PREFIX):]
+        else:
+            assert False
+        return persist_group_name
+        
+    def loadPerspectivesRec(self, settings: QSettings) -> None:
+        children = self.allManagers(True, True)
+        
+        for mgr in children:
+            settings.beginGroup(mgr.getPersistGroupName())
+            mgr.loadPerspectives(settings)
+            settings.endGroup()
+            
+    def savePerspectivesRec(self, settings: QSettings) -> None:
+        children = self.allManagers(True, True)
+        
+        for mgr in children:
+            settings.beginGroup(mgr.getPersistGroupName())
+            mgr.savePerspectives(settings)
+            settings.endGroup()
+            
+    def removePerspectivesRec(self, settings: QSettings) -> None:
+        children = self.allManagers(True, True)
+        
+        for mgr in children:
+            child.removePerspectives(child.perspectiveNames())
+            
+    @staticmethod
+    def dockInAManager(widget) -> 'DockInDockManager':
+        from dockindock import DockInDockWidget # Prevent cyclic import
+        
+        dock_widget =  widget.widget() if widget else None
+        return dock_widget.getManager() if isinstance(dock_widget, DockInDockWidget) else None
+        
+    def childManagers(self, managers: 'list[DockInDockManager]', rec: bool) -> None:
+        widgets = self.getWidgetsInGUIOrder()
+        for widget in widgets:
+            as_mgr = DockInDockManager.dockInAManager(widget)
+            if as_mgr:
+                managers.append(as_mgr)
+                if rec:
+                    as_mgr.childManagers(managers, rec)
+                    
+    def allManagers(self, include_self: bool, rec: bool) -> 'list[DockInDockManager]':
+        managers = []
+        if include_self:
+            managers.append(self)
+        self.childManagers(managers, rec)
+        return managers
+        
+    def allDockWidgets(self, include_self: bool, rec: bool) -> 'list[tuple[DockInDockManager, QtAds.CDockWidget]]':
+        widgets = []
+        for mgr in self.allManagers(include_self, rec):
+            for widget in mgr.getWidgetsInGUIOrder():
+                widgets.append((mgr, widget))
+        return widgets
+        
+    def getGroupContents(self) -> 'dict[str, list[str]]':
+        result = {}
+        managers = self.allManagers(True, True)
+        for mgr in managers:
+            result[mgr.getPersistGroupName()] = mgr.dockWidgetsMap().keys()
+        return result
+        
+    def getInsertDefaultPos(self) -> QtAds.CDockAreaWidget:
+        default_pos = None
+        if self.dockAreaCount() != 0:
+            default_pos = self.dockArea(self.dockAreaCount()-1)
+        return default_pos
+        
+    def getWidgetsInGUIOrder(self) -> 'list[QtAds.CDockWidget]':
+        result = []
+        for i in range(self.dockAreaCount()):
+            for widget in self.dockArea(i).dockWidgets():
+                result.append(widget)
+        return result
+        
+    
+class CreateChildDockAction(QAction):
+    def __init__(self, dock_in_dock: 'DockInDockWidget', menu: QMenu):
+        super().__init__("New group...", menu)
+        self.__dock_in_dock = dock_in_dock
+        self.triggered.connect(self.createGroup)
+        
+    def createGroup(self) -> None:
+        name = ""
+        while True:
+            name, ok = QInputDialog.getText(None, self.text(), "Enter group name", QLineEdit.Normal, name)
+            if ok:
+                error = ""
+                if self.__dock_in_dock.getTopLevelDockWidget():
+                    error = self.__dock_in_dock.getTopLevelDockWidget().getGroupNameError(name)
+                else:
+                    assert False
+                    
+                if not error:
+                    self.__dock_in_dock.createGroup(name, None)
+                    break
+                else:
+                    QMessageBox.critical(None, "Error", error)
+                    continue
+            else:
+                break
+        
+class DestroyGroupAction(QAction):
+    def __init__(self, widget: 'DockInDockWidget', menu: QMenu):
+        super().__init__("Destroy" + widget.getManager().getGroupName(), menu)
+        self.__widget = widget
+        self.triggered.connect(self.destroyGroup)
+        
+    def destroyGroup(self) -> None:
+        self.__widget.getTopLevelDockWidget().destroyGroup(self.__widget)
+        
+        
+class MoveDockWidgetAction(QAction):
+    def __init__(self, widget: 'DockInDockWidget', move_to: DockInDockManager, menu: QMenu):
+        super().__init__(menu)
+        self.__widget = widget
+        self.__move_to = move_to
+        
+        if move_to.parent().isTopLevel():
+            self.setText("To top")
+        else:
+            self.setText(f"To {move_to.parent().objectName()}")
+        self.triggered.connect(self._move)
+        
+    def _move(self) -> None:
+        self.move(self.__widget, self.__move_to)
+        
+    def move(self, widget: QtAds.CDockWidget, move_to: QtAds.CDockManager) -> None:
+        if widget and move_to:
+            widget.dockManager().removeDockWidget(widget)
+            move_to.addDockWidget(QtAds.CenterDockWidgetArea, widget, move_to.getInsertDefaultPos())
+        else:
+            assert False

examples/dockindock/main.py

@@ -0,0 +1,72 @@
+import sys
+import os
+import atexit
+
+from PyQt5.QtWidgets import QApplication, QMainWindow, QLabel
+from PyQt5.QtCore import Qt
+from PyQtAds import QtAds
+
+from perspectives import PerspectivesManager
+from dockindock import DockInDockWidget
+    
+class MainWindow(QMainWindow):
+    def __init__(self, parent=None):
+        super().__init__(parent)
+        
+        self.perspectives_manager = PerspectivesManager("persist")
+        self.resize(400, 400)
+        self.dock_manager = DockInDockWidget(self, self.perspectives_manager, can_create_new_groups=True)
+        self.setCentralWidget(self.dock_manager)
+        self.dock_manager.attachViewMenu(self.menuBar().addMenu("View"))
+
+        previous_dock_widget = None
+        for i in range(3):
+            l = QLabel()
+            l.setWordWrap(True)
+            l.setAlignment(Qt.AlignTop | Qt.AlignLeft)
+            l.setText("Lorem ipsum dolor sit amet, consectetuer adipiscing elit. ")
+            
+            previous_dock_widget = self.dock_manager.addTabWidget(l, f"Top label {i}", previous_dock_widget)
+            
+        last_top_level_dock = previous_dock_widget
+        
+        for j in range(2):
+            group_manager, _ = self.dock_manager.createGroup(f"Group {j}", last_top_level_dock)
+            
+            previous_dock_widget = None
+            
+            for i in range(3):
+                # Create example content label - this can be any application specific widget
+                l = QLabel()
+                l.setWordWrap(True)
+                l.setAlignment(Qt.AlignTop | Qt.AlignLeft)
+                l.setText("Lorem ipsum dolor sit amet, consectetuer adipiscing elit. ")
+
+                previous_dock_widget = group_manager.addTabWidget(l, f"ZInner {j}/{i}", previous_dock_widget)
+                
+            # create sub-group
+            sub_group, _ = group_manager.createGroup(f"SubGroup {j}", previous_dock_widget)
+            previous_dock_widget = None
+            for i in range(3):
+                # Create example content label - this can be any application specific widget
+                l = QLabel()
+                l.setWordWrap(True)
+                l.setAlignment(Qt.AlignTop | Qt.AlignLeft)
+                l.setText("Lorem ipsum dolor sit amet, consectetuer adipiscing elit. ")
+
+                previous_dock_widget = sub_group.addTabWidget(l, f"SubInner {j}/{i}", previous_dock_widget)
+                
+        self.perspectives_manager.loadPerspectives()
+        
+        atexit.register(self.cleanup)
+        
+    def cleanup(self):
+        self.perspectives_manager.savePerspectives()
+
+        
+if __name__ == '__main__':
+    app = QApplication(sys.argv)
+    
+    w = MainWindow()
+    w.show()
+    app.exec_()

examples/dockindock/perspectiveactions.py

@@ -0,0 +1,25 @@
+from PyQt5.QtWidgets import QAction, QMenu
+
+
+class LoadPerspectiveAction(QAction):
+    def __init__(self, parent: QMenu, name: str, dock_manager: 'DockInDockWidget'):
+        super().__init__(name, parent)
+        self.name = name
+        self.dock_manager = dock_manager
+        
+        self.triggered.connect(self.load)
+        
+    def load(self):
+        self.dock_manager.getPerspectivesManager().openPerspective(self.name, self.dock_manager)
+        
+        
+class RemovePerspectiveAction(QAction):
+    def __init__(self, parent: QMenu, name: str, dock_manager: 'DockInDockWidget'):
+        super().__init__(name, parent)
+        self.name = name
+        self.dock_manager = dock_manager
+        
+        self.triggered.connect(self.remove)
+        
+    def remove(self):
+        self.dock_manager.getPerspectivesManager().removePerspective(self.name)

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/dockindock/perspectives.py

@@ -0,0 +1,203 @@
+import os
+import tempfile
+import shutil
+import atexit
+
+from PyQt5.QtCore import pyqtSignal, QSettings, QObject
+from PyQtAds import QtAds
+
+from dockindockmanager import DockInDockManager
+from dockindock import DockInDockWidget
+
+GROUP_PREFIX = "Group"
+
+def findWidget(name, managers: 'list[DockInDockManager]') -> QtAds.CDockWidget:
+        for mgr in managers:
+            widget = mgr.findDockWidget(name)
+            if widget:
+                return widget
+
+
+class PerspectiveInfo:
+    # Partially bypass ADS perspective management, store list here
+    # and then ADS will only have one perspective loaded
+    # this is because all docking widgets must exist when a perspective is loaded
+    # we will guarantee that!
+    
+    settings = QSettings()
+    groups: 'dict[str, list[str]]' = {}
+
+
+class PerspectivesManager(QObject):
+    perspectivesListChanged = pyqtSignal()
+    openingPerspective = pyqtSignal()
+    openedPerspective = pyqtSignal()
+
+    def __init__(self, perspectives_folder):
+        super().__init__()
+        self.__perspectives_folder = perspectives_folder
+        self.__perspectives = {}
+        atexit.register(self.cleanup)
+        
+    def cleanup(self):
+        for perspective in self.__perspectives.values():
+            filename = perspective.settings.fileName()
+            try:
+                os.remove(filename)
+            except FileNotFoundError:
+                pass
+            
+    def perspectiveNames(self) -> 'list[str]':
+        return self.__perspectives.keys()
+        
+    def addPerspective(self, name: str, widget: DockInDockWidget) -> None:
+        if self.__perspectives_folder:
+            self.__perspectives[name] = perspective = PerspectiveInfo()
+            perspective.settings = self.getSettingsObject(self.getSettingsFileName(name, True))
+            perspective.groups = widget.getManager().getGroupContents()
+            
+            # save perspective internally
+            widget.getManager().addPerspectiveRec(name)
+            # store it in QSettings object
+            widget.getManager().savePerspectivesRec(perspective.settings)
+            # remove internal perspectives
+            widget.getManager().removePerspectives(widget.getManager().perspectiveNames())
+            
+        self.perspectivesListChanged.emit()
+                
+    def openPerspective(name: str, widget: DockInDockWidget) -> None:
+        assert widget.getTopLevelDockWidget() == widget
+        
+        if self.__perspectives_folder:
+            if name in self.__perspectives:
+                self.openingPerspective.emit()
+                
+                if widget.canCreateNewGroups():
+                    cur_groups = widget.getManager().allManagers(True, True)
+                    for group in self.__perspectives[name].groups.keys():
+                        found = False
+                        for curgroup in cur_groups:
+                            if curgroup.getPerspectiveGroupName() == group:
+                                found = True
+                                break
+                        if not found:
+                            group = DockInDockManager.getGroupNameFromPersistGroupName(group)
+                            
+                        # restore group in file but not in GUI yet
+                        widget.createGroup(group, None)
+                        
+                    cur_groups = widget.getManager().allManagers(False, True)
+                    for curgroup in cur_groups:
+                        if curgroup.getPersistGroupName() not in self.__perspectives[name].groups.keys():
+                            widget.destroyGroup(curgroup.parent())
+                            
+                managers = widget.getManager().allManagers(True, True)
+                for group in self.__perspectives[name].groups().keys():
+                    for mgr in managers:
+                        if mgr.getPersistGroupName() == group:
+                            for widget_name in self.__perspectives[name].groups[group]:
+                                widget = findWidget(widget_name, [mgr])
+                                if widget:
+                                    pass # OK, widget is already in the good manager!
+                                else:
+                                    widget = findWidget(widget_name, managers)
+                                    if widget:
+                                        # move dock widget in the same group as it used to be when perspective was saved
+                                        # this guarantee load/open perspectives will work smartly
+                                        MoveDockWidgetAction.move(widget, mgr)
+                                        
+                 # internally load perspectives from QSettings
+                widget.getManager().loadPerspectivesRec(self.__perspectives[name].settings)
+                # load perspective (update GUI)
+                widget.getManager().openPerspectiveRec(name)
+                # remove internal perspectives
+                widget.getManager().removePerspectives(widget.getManager().perspectiveNames())
+
+                self.openedPerspective().emit()
+        else:
+            assert False
+            
+    def removePerspectives(self) -> None:
+        self.__perspectives.clear()
+        self.perspectivesListChanged.emit()
+        
+    def removePerspective(self, name: str) -> None:
+        del self.__perspectives[name]
+        self.perspectivesListChanged.emit()
+        
+    def getSettingsFileName(self, perspective: str, temp: bool) -> str:
+        name = "perspectives.ini" if not perspective else f"perspectives_{perspective + '.tmp' if temp else perspective + '.ini'}"
+        
+        return os.path.join(self.__perspectives_folder, name)
+        
+    def getSettingsObject(self, file_path: str) -> QSettings:
+        return QSettings(file_path, QSettings.IniFormat)
+        
+    def loadPerspectives(self) -> None:
+        if self.__perspectives_folder:
+            tempfile.mktemp(dir=self.__perspectives_folder)
+            
+            self.__perspectives.clear()
+            
+            main_settings = self.getSettingsObject(self.getSettingsFileName("", False))
+            debug = main_settings.fileName()
+            
+            size = main_settings.beginReadArray("Perspectives")
+            
+            for i in range(0, size):
+                main_settings.setArrayIndex(i)
+                perspective = main_settings.value("Name")
+                
+                if perspective:
+                    to_load = self.getSettingsFileName(perspective, False)
+                    loaded = self.getSettingsFileName(perspective, True)
+                    
+                    try:
+                        os.remove(loaded)
+                    except FileNotFoundError:
+                        pass
+                    if not shutil.copy(to_load, loaded):
+                        assert False
+                        
+                    self.__perspectives[perspective] = PerspectiveInfo()
+                    self.__perspectives[perspective].settings = self.getSettingsObject(loaded)
+                    
+                    # load group info:
+                    main_settings.beginGroup(GROUP_PREFIX)
+                    for key in main_settings.allKeys():
+                        self.__perspectives[perspective].groups[key] = main_settings.value(key)
+                    main_settings.endGroup()
+                else:
+                    assert False
+                    
+            main_settings.endArray()
+            
+        self.perspectivesListChanged.emit()
+        
+    def savePerspectives(self) -> None:
+        if self.__perspectives_folder:
+            main_settings = self.getSettingsObject(self.getSettingsFileName("", False))
+            
+            # Save list of perspective and group organization
+            main_settings.beginWriteArray("Perspectives", len(self.__perspectives))
+            for i, perspective in enumerate(self.__perspectives.keys()):
+                main_settings.setArrayIndex(i)
+                main_settings.setValue("Name", perspective)
+                main_settings.beginGroup(GROUP_PREFIX)
+                for group in self.__perspectives[perspective].groups.keys():
+                    main_settings.setValue(group, list(self.__perspectives[perspective].groups[group]))
+                main_settings.endGroup()
+            main_settings.endArray()
+            
+            # Save perspectives themselves
+            for perspective_name in self.__perspectives.keys():
+                to_save = self.getSettingsFileName(perspective_name, False)
+                settings = self.__perspectives[perspective_name].settings
+                settings.sync()
+
+                try:
+                    os.remove(to_save)
+                except FileNotFoundError:
+                    pass
+                if not shutil.copy(settings.fileName(), to_save):
+                    assert False

examples/emptydockarea/CMakeLists.txt

@@ -9,7 +9,7 @@ add_executable(EmptyDockAreaExample WIN32
     mainwindow.ui
 )
 target_include_directories(EmptyDockAreaExample PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/../../src")
-target_link_libraries(EmptyDockAreaExample PRIVATE qtadvanceddocking)
+target_link_libraries(EmptyDockAreaExample PRIVATE qt${QT_VERSION_MAJOR}advanceddocking)
 target_link_libraries(EmptyDockAreaExample PUBLIC Qt${QT_VERSION_MAJOR}::Core 
                                                   Qt${QT_VERSION_MAJOR}::Gui 
                                                   Qt${QT_VERSION_MAJOR}::Widgets)

examples/emptydockarea/main.py

@@ -0,0 +1,108 @@
+import sys
+import os
+
+from PyQt5 import uic
+from PyQt5.QtCore import Qt, QSignalBlocker
+from PyQt5.QtWidgets import (QApplication, QMainWindow, QLabel, QComboBox, QTableWidget,
+                             QAction, QWidgetAction, QSizePolicy, QInputDialog)
+from PyQt5.QtGui import QCloseEvent
+from PyQtAds import QtAds
+
+    
+UI_FILE = os.path.join(os.path.dirname(__file__), 'mainwindow.ui')
+MainWindowUI, MainWindowBase = uic.loadUiType(UI_FILE)
+
+
+class CMainWindow(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
+        label = QLabel()
+        label.setText("This is a DockArea which is always visible, even if it does not contain any DockWidgets.")
+        label.setAlignment(Qt.AlignCenter)
+        central_dock_widget = QtAds.CDockWidget("CentralWidget")
+        central_dock_widget.setWidget(label)
+        central_dock_widget.setFeature(QtAds.CDockWidget.NoTab, True)
+        central_dock_area = self.dock_manager.setCentralWidget(central_dock_widget)
+
+        # 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)
+        self.dock_manager.addDockWidgetTabToArea(table_dock_widget, central_dock_area)
+        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)
+        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.createPerspectiveUi()
+        
+    def createPerspectiveUi(self):
+        save_perspective_action = QAction("Create Perspective", self)
+        save_perspective_action.triggered.connect(self.savePerspective)
+        perspective_list_action = QWidgetAction(self)
+        self.perspective_combo_box = QComboBox(self)
+        self.perspective_combo_box.setSizeAdjustPolicy(QComboBox.AdjustToContents)
+        self.perspective_combo_box.setSizePolicy(QSizePolicy.Preferred, QSizePolicy.Preferred)
+        self.perspective_combo_box.activated[str].connect(self.dock_manager.openPerspective)
+        perspective_list_action.setDefaultWidget(self.perspective_combo_box)
+        self.toolBar.addSeparator()
+        self.toolBar.addAction(perspective_list_action)
+        self.toolBar.addAction(save_perspective_action)
+        
+    def savePerspective(self):
+        perspective_name, ok = QInputDialog.getText(self, "Save Perspective", "Enter unique name:")
+        if not perspective_name or not ok:
+            return
+        
+        self.dock_manager.addPerspective(perspective_name)
+        blocker = QSignalBlocker(self.perspective_combo_box)
+        self.perspective_combo_box.clear()
+        self.perspective_combo_box.addItems(self.dock_manager.perspectiveNames())
+        self.perspective_combo_box.setCurrentText(perspective_name)
+        
+    def closeEvent(self, event: QCloseEvent):
+        # Delete dock manager here to delete all floating widgets. This ensures
+        # that all top level windows of the dock manager are properly closed
+        self.dock_manager.deleteLater()
+        super().closeEvent(event)
+        
+if __name__ == '__main__':
+    app = QApplication(sys.argv)
+    
+    w = CMainWindow()
+    w.show()
+    app.exec_()

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 "${CMAKE_CURRENT_SOURCE_DIR}/../../src")
+target_link_libraries(HideShowExample PRIVATE qt${QT_VERSION_MAJOR}advanceddocking)
+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    
+