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https://github.com/Chatterino/chatterino2.git
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48 lines
1.5 KiB
C++
48 lines
1.5 KiB
C++
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#pragma once
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#include "widgets/BaseWindow.hpp"
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#include <QPoint>
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#include <QTimer>
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#include <memory>
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namespace chatterino {
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class DraggablePopup : public BaseWindow
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{
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Q_OBJECT
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public:
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/// DraggablePopup implements the automatic dragging behavior when clicking
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/// anywhere in the window (that doesn't have some other widget).
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///
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/// If closeAutomatically is set, the window will close when losing focus,
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/// and the window will be frameless.
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DraggablePopup(bool closeAutomatically, QWidget *parent);
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protected:
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void mousePressEvent(QMouseEvent *event) override;
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void mouseReleaseEvent(QMouseEvent *event) override;
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void mouseMoveEvent(QMouseEvent *event) override;
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// lifetimeHack_ is used to check that the window hasn't been destroyed yet
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std::shared_ptr<bool> lifetimeHack_;
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private:
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// isMoving_ is set to true if the user is holding the left mouse button down and has moved the mouse a small amount away from the original click point (startPosDrag_)
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bool isMoving_ = false;
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// startPosDrag_ is the coordinates where the user originally pressed the mouse button down to start dragging
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QPoint startPosDrag_;
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// requestDragPos_ is the final screen coordinates where the widget should be moved to.
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// Takes the relative position of where the user originally clicked the widget into account
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QPoint requestedDragPos_;
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// dragTimer_ is called ~60 times per second once the user has initiated dragging
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QTimer dragTimer_;
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};
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} // namespace chatterino
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