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https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System.git
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3e9dc7f4d6
- Add left and right side tab widgets - Add overlay dock and overlay dock widget behavior
114 lines
2.9 KiB
C++
114 lines
2.9 KiB
C++
#ifndef FloatingDragPreviewH
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#define FloatingDragPreviewH
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//============================================================================
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/// \file FloatingDragPreview.h
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/// \author Uwe Kindler
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/// \date 26.11.2019
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/// \brief Declaration of CFloatingDragPreview
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//============================================================================
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//============================================================================
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// INCLUDES
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//============================================================================
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#include <QWidget>
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#include "FloatingDockContainer.h"
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namespace ads
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{
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class CDockWidget;
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class CDockAreaWidget;
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struct FloatingDragPreviewPrivate;
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/**
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* A floating overlay is a temporary floating widget that is just used to
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* indicate the floating widget movement.
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* This widget is used as a placeholder for drag operations for non-opaque
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* docking
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*/
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class CFloatingDragPreview : public QWidget, public IFloatingWidget
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{
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Q_OBJECT
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private:
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FloatingDragPreviewPrivate* d;
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friend struct FloatingDragPreviewPrivate;
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private Q_SLOTS:
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/**
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* Cancel non opaque undocking if application becomes inactive
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*/
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void onApplicationStateChanged(Qt::ApplicationState state);
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protected:
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/**
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* Cares about painting the
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*/
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virtual void paintEvent(QPaintEvent *e) override;
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/**
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* The content is a DockArea or a DockWidget
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*/
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CFloatingDragPreview(QWidget* Content, QWidget* parent);
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public:
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using Super = QWidget;
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/**
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* Creates an instance for undocking the DockWidget in Content parameter
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*/
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CFloatingDragPreview(CDockWidget* Content);
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/**
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* Creates an instance for undocking the DockArea given in Content
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* parameters
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*/
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CFloatingDragPreview(CDockAreaWidget* Content);
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/**
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* Delete private data
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*/
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~CFloatingDragPreview();
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/**
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* We filter the events of the assigned content widget to receive
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* escape key presses for canceling the drag operation
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*/
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virtual bool eventFilter(QObject *watched, QEvent *event) override;
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public: // implements IFloatingWidget -----------------------------------------
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virtual void startFloating(const QPoint& DragStartMousePos, const QSize& Size,
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eDragState DragState, QWidget* MouseEventHandler) override;
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/**
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* Moves the widget to a new position relative to the position given when
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* startFloating() was called
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*/
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virtual void moveFloating() override;
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/**
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* Finishes dragging.
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* Hides the dock overlays and executes the real undocking and docking
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* of the assigned Content widget
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*/
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virtual void finishDragging() override;
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/**
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* Cleanup overlay container if the dragged widget has one
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*/
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void cleanupOverlayContainerWidget();
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Q_SIGNALS:
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/**
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* This signal is emitted, if dragging has been canceled by escape key
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* or by active application switching via task manager
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*/
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void draggingCanceled();
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};
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} // namespace ads
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//---------------------------------------------------------------------------
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#endif // FloatingDragPreviewH
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