83 lines
1.9 KiB
C++
Executable File
83 lines
1.9 KiB
C++
Executable File
#pragma once
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#include "timeline_view.h"
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#include <LtsTimeline/ltstimeline_export.h>
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#include <QPoint>
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#include <QVector>
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#include <QModelIndex>
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class QDragEnterEvent;
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class QDragMoveEvent;
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class QDragLeaveEvent;
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class QDropEvent;
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class QMouseEvent;
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class QKeyEvent;
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namespace LtsTimeline
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{
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class Item;
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class Track;
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class TimelineView;
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class ItemDelegate;
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class LTSTIMELINE_EXPORT TimelineViewDragHandler
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{
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friend class TimelineView;
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friend class ItemDelegate;
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public:
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explicit TimelineViewDragHandler(TimelineView *view);
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virtual ~TimelineViewDragHandler();
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virtual void dragEnterEvent(QDragEnterEvent *e);
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virtual void dragMoveEvent(QDragMoveEvent *e);
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virtual void dragLeaveEvent(QDragLeaveEvent *e);
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virtual void dropEvent(QDropEvent *e);
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virtual void mouseMoveEvent(QMouseEvent *e);
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virtual void mousePressEvent(QMouseEvent *e);
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virtual void mouseReleaseEvent(QMouseEvent *e);
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virtual void keyPressEvent(QKeyEvent *e);
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virtual bool isActive() const;
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virtual int deltaX() const;
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virtual int deltaY() const;
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virtual qint64 deltaTime() const;
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const QVector<int> &dragItemIds() const { return m_dragItemIds; }
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const QModelIndex &dragStartIndex() const { return m_dragStartIndex; }
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qint64 dragStartTime() const { return m_dragStartTime; }
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const QPoint &dragStartPos() const { return m_dragStartPos; }
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const QPoint &dragPos() const { return m_dragPos; }
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protected:
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virtual bool canDragItemsTo(const QPoint &point) const;
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virtual bool canMoveItemsTo(const QPoint &point) const;
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virtual void moveItemsLeft(const QVector<int> &itemIds, int dt);
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virtual void moveItemsRight(const QVector<int> &itemIds, int dt);
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int dragItemTrackId(const Item &item) const;
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void clear();
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protected:
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TimelineView *m_view{nullptr};
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QVector<int> m_dragItemIds;
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QModelIndex m_dragStartIndex;
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qint64 m_dragStartTime{-1};
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QPoint m_dragStartPos;
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QPoint m_dragPos;
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int m_snapLinePos{-1};
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};
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}
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