Scarfski/Qt-Advanced-Docking-System
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Create drop indicator images on the fly. No longer use PNG resources

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(better in case of license issues). Drop images should be scalable now!
This commit is contained in:
mfreiholz
2016-04-18 12:30:24 +02:00
parent e04b5c7900
commit 8c3a00d7b5
15 changed files with 102 additions and 25 deletions
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112
AdvancedDockingSystem/src/DropOverlay.cpp
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@@ -14,12 +14,104 @@ ADS_NAMESPACE_BEGIN
// Helper /////////////////////////////////////////////////////////////
static QWidget* createDropWidget(const QString& img)
static QPixmap createDropIndicatorPixmap(const QPalette& pal, const QSizeF& size, DropArea dropArea)
{
QLabel* label = new QLabel();
label->setObjectName("DropAreaLabel");
label->setPixmap(QPixmap(img));
return label;
const QColor borderColor = pal.color(QPalette::Active, QPalette::Highlight);
const QColor backgroundColor = pal.color(QPalette::Active, QPalette::Base);
const QColor areaBackgroundColor = pal.color(QPalette::Active, QPalette::Highlight).lighter(150);
QPixmap pm(size.width(), size.height());
pm.fill(QColor(0, 0, 0, 0));
QPainter p(&pm);
QPen pen = p.pen();
QRectF baseRect(pm.rect());
// Fill
p.fillRect(baseRect, backgroundColor);
// Drop area rect.
if (true)
{
p.save();
QRectF areaRect;
QLineF areaLine;
QLinearGradient gradient;
switch (dropArea)
{
case TopDropArea:
areaRect = QRectF(baseRect.x(), baseRect.y(), baseRect.width(), baseRect.height() * .5f);
areaLine = QLineF(areaRect.bottomLeft(), areaRect.bottomRight());
gradient.setStart(areaRect.topLeft());
gradient.setFinalStop(areaRect.bottomLeft());
gradient.setColorAt(0.f, areaBackgroundColor);
gradient.setColorAt(1.f, areaBackgroundColor.lighter(120));
break;
case RightDropArea:
areaRect = QRectF(baseRect.width() * .5f, baseRect.y(), baseRect.width() * .5f, baseRect.height());
areaLine = QLineF(areaRect.topLeft(), areaRect.bottomLeft());
gradient.setStart(areaRect.topLeft());
gradient.setFinalStop(areaRect.topRight());
gradient.setColorAt(0.f, areaBackgroundColor.lighter(120));
gradient.setColorAt(1.f, areaBackgroundColor);
break;
case BottomDropArea:
areaRect = QRectF(baseRect.x(), baseRect.height() * .5f, baseRect.width(), baseRect.height() * .5f);
areaLine = QLineF(areaRect.topLeft(), areaRect.topRight());
gradient.setStart(areaRect.topLeft());
gradient.setFinalStop(areaRect.bottomLeft());
gradient.setColorAt(0.f, areaBackgroundColor.lighter(120));
gradient.setColorAt(1.f, areaBackgroundColor);
break;
case LeftDropArea:
areaRect = QRectF(baseRect.x(), baseRect.y(), baseRect.width() * .5f, baseRect.height());
areaLine = QLineF(areaRect.topRight(), areaRect.bottomRight());
gradient.setStart(areaRect.topLeft());
gradient.setFinalStop(areaRect.topRight());
gradient.setColorAt(0.f, areaBackgroundColor);
gradient.setColorAt(1.f, areaBackgroundColor.lighter(120));
break;
case CenterDropArea:
break;
}
if (areaRect.isValid())
{
p.fillRect(areaRect, gradient);
pen = p.pen();
pen.setColor(borderColor);
pen.setStyle(Qt::DashLine);
p.setPen(pen);
p.drawLine(areaLine);
}
p.restore();
}
// Border
if (true)
{
p.save();
pen = p.pen();
pen.setColor(borderColor);
pen.setWidth(1);
p.setPen(pen);
p.drawRect(baseRect.adjusted(0, 0, -pen.width(), -pen.width()));
p.restore();
}
return pm;
}
static QWidget* createDropIndicatorWidget(DropArea dropArea)
{
QLabel* l = new QLabel();
l->setObjectName("DropAreaLabel");
const qreal metric = static_cast<qreal>(l->fontMetrics().height()) * 2.f;
const QSizeF size(metric, metric);
l->setPixmap(createDropIndicatorPixmap(l->palette(), size, dropArea));
return l;
}
///////////////////////////////////////////////////////////////////////
@@ -42,11 +134,11 @@ DropOverlay::DropOverlay(QWidget* parent) :
// Cross with default drop area widgets.
QHash<DropArea, QWidget*> areaWidgets;
areaWidgets.insert(ADS_NS::TopDropArea, createDropWidget(":/img/split-top.png"));
areaWidgets.insert(ADS_NS::RightDropArea, createDropWidget(":/img/split-right.png"));
areaWidgets.insert(ADS_NS::BottomDropArea, createDropWidget(":/img/split-bottom.png"));
areaWidgets.insert(ADS_NS::LeftDropArea, createDropWidget(":/img/split-left.png"));
areaWidgets.insert(ADS_NS::CenterDropArea, createDropWidget(":/img/dock-center.png"));
areaWidgets.insert(ADS_NS::TopDropArea, createDropIndicatorWidget(TopDropArea)); //createDropWidget(":/img/split-top.png"));
areaWidgets.insert(ADS_NS::RightDropArea, createDropIndicatorWidget(RightDropArea));//createDropWidget(":/img/split-right.png"));
areaWidgets.insert(ADS_NS::BottomDropArea, createDropIndicatorWidget(BottomDropArea));//createDropWidget(":/img/split-bottom.png"));
areaWidgets.insert(ADS_NS::LeftDropArea, createDropIndicatorWidget(LeftDropArea));//createDropWidget(":/img/split-left.png"));
areaWidgets.insert(ADS_NS::CenterDropArea, createDropIndicatorWidget(CenterDropArea));//createDropWidget(":/img/dock-center.png"));
_cross->setAreaWidgets(areaWidgets);
_cross->setVisible(false);