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38 lines
983 B
C
38 lines
983 B
C
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#pragma once
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#include <QDockWidget>
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#include <QStyleOption>
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#include <QPainter>
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class custom_dock_widget : public QDockWidget
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{
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public:
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explicit custom_dock_widget(const QString &title, QWidget *parent = Q_NULLPTR, Qt::WindowFlags flags = Qt::WindowFlags())
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: QDockWidget(title, parent, flags)
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{
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connect(this, &QDockWidget::topLevelChanged, [this](bool/* topLevel*/)
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{
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style()->unpolish(this);
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style()->polish(this);
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});
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};
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protected:
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void paintEvent(QPaintEvent* event) override
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{
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// We need to repaint the dock widgets as plain widgets in floating mode.
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// Source: https://stackoverflow.com/questions/10272091/cannot-add-a-background-image-to-a-qdockwidget
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if (isFloating())
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{
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QStyleOption opt;
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opt.init(this);
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QPainter p(this);
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style()->drawPrimitive(QStyle::PE_Widget, &opt, &p, this);
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return;
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}
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// Use inherited method for docked mode because otherwise the dock would lose the title etc.
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QDockWidget::paintEvent(event);
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}
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};
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