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| |
| #ifndef QSIMPLEDRAG_P_H |
| #define QSIMPLEDRAG_P_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists purely as an |
| // implementation detail. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include <QtGui/private/qtguiglobal_p.h> |
| #include <qpa/qplatformdrag.h> |
| |
| #include <QtCore/QObject> |
| #include <QtCore/QPointer> |
| #include <QtGui/QWindow> |
| |
| QT_REQUIRE_CONFIG(draganddrop); |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QMouseEvent; |
| class QEventLoop; |
| class QDropData; |
| class QShapedPixmapWindow; |
| class QScreen; |
| |
| class Q_GUI_EXPORT QBasicDrag : public QPlatformDrag, public QObject |
| { |
| public: |
| ~QBasicDrag(); |
| |
| virtual Qt::DropAction drag(QDrag *drag) override; |
| void cancelDrag() override; |
| |
| virtual bool eventFilter(QObject *o, QEvent *e) override; |
| |
| protected: |
| QBasicDrag(); |
| |
| virtual void startDrag(); |
| virtual void cancel(); |
| virtual void move(const QPoint &globalPos, Qt::MouseButtons b, Qt::KeyboardModifiers mods) = 0; |
| virtual void drop(const QPoint &globalPos, Qt::MouseButtons b, Qt::KeyboardModifiers mods) = 0; |
| virtual void endDrag(); |
| |
| |
| void moveShapedPixmapWindow(const QPoint &deviceIndependentPosition); |
| QShapedPixmapWindow *shapedPixmapWindow() const { return m_drag_icon_window; } |
| void recreateShapedPixmapWindow(QScreen *screen, const QPoint &pos); |
| void updateCursor(Qt::DropAction action); |
| |
| bool canDrop() const { return m_can_drop; } |
| void setCanDrop(bool c) { m_can_drop = c; } |
| |
| bool useCompositing() const { return m_useCompositing; } |
| void setUseCompositing(bool on) { m_useCompositing = on; } |
| |
| void setScreen(QScreen *screen) { m_screen = screen; } |
| |
| Qt::DropAction executedDropAction() const { return m_executed_drop_action; } |
| void setExecutedDropAction(Qt::DropAction da) { m_executed_drop_action = da; } |
| |
| QDrag *drag() const { return m_drag; } |
| |
| protected: |
| QWindow *m_sourceWindow = nullptr; |
| QPointer<QWindow> m_windowUnderCursor = nullptr; |
| |
| private: |
| void enableEventFilter(); |
| void disableEventFilter(); |
| void restoreCursor(); |
| void exitDndEventLoop(); |
| |
| #ifndef QT_NO_CURSOR |
| bool m_dndHasSetOverrideCursor = false; |
| #endif |
| QEventLoop *m_eventLoop = nullptr; |
| Qt::DropAction m_executed_drop_action = Qt::IgnoreAction; |
| bool m_can_drop = false; |
| QDrag *m_drag = nullptr; |
| QShapedPixmapWindow *m_drag_icon_window = nullptr; |
| bool m_useCompositing = true; |
| QScreen *m_screen = nullptr; |
| QPoint m_lastPos; |
| }; |
| |
| class Q_GUI_EXPORT QSimpleDrag : public QBasicDrag |
| { |
| public: |
| QSimpleDrag(); |
| |
| protected: |
| virtual void startDrag() override; |
| virtual void cancel() override; |
| virtual void move(const QPoint &globalPos, Qt::MouseButtons b, Qt::KeyboardModifiers mods) override; |
| virtual void drop(const QPoint &globalPos, Qt::MouseButtons b, Qt::KeyboardModifiers mods) override; |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #endif |