163 lines
4.0 KiB
C++
163 lines
4.0 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2019 Olive Team
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#ifndef TIMELINEVIEW_H
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#define TIMELINEVIEW_H
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#include <QGraphicsView>
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#include <QDragEnterEvent>
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#include <QDragMoveEvent>
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#include <QDragLeaveEvent>
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#include <QDropEvent>
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#include "node/block/clip/clip.h"
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#include "timelineviewclipitem.h"
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#include "timelineviewghostitem.h"
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#include "timelineviewplayheaditem.h"
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/**
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* @brief A widget for viewing and interacting Sequences
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*
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* This widget primarily exposes users to viewing and modifying Block nodes, usually through a TimelineOutput node.
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*/
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class TimelineView : public QGraphicsView
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{
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Q_OBJECT
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public:
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TimelineView(QWidget* parent);
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void AddBlock(Block* block);
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void RemoveBlock(Block* block);
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void SetScale(const double& scale);
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void SetTimebase(const rational& timebase);
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void Clear();
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public slots:
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void SetTime(const int64_t time);
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signals:
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void RequestInsertBlockAtIndex(Block* block, int index);
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void RequestPlaceBlock(Block* block, rational start);
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void RequestInsertBlockAtTime(Block* block, rational time);
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protected:
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virtual void mousePressEvent(QMouseEvent *event) override;
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virtual void mouseMoveEvent(QMouseEvent *event) override;
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virtual void mouseReleaseEvent(QMouseEvent *event) override;
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virtual void dragEnterEvent(QDragEnterEvent *event) override;
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virtual void dragMoveEvent(QDragMoveEvent *event) override;
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virtual void dragLeaveEvent(QDragLeaveEvent *event) override;
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virtual void dropEvent(QDropEvent *event) override;
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private:
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class Tool
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{
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public:
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Tool(TimelineView* parent);
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virtual ~Tool();
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virtual void MousePress(QMouseEvent *event);
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virtual void MouseMove(QMouseEvent *event);
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virtual void MouseRelease(QMouseEvent *event);
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virtual void DragEnter(QDragEnterEvent *event);
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virtual void DragMove(QDragMoveEvent *event);
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virtual void DragLeave(QDragLeaveEvent *event);
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virtual void DragDrop(QDropEvent *event);
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TimelineView* parent();
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protected:
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bool dragging_;
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QPoint drag_start_;
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private:
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TimelineView* parent_;
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};
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class PointerTool : public Tool
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{
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public:
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PointerTool(TimelineView* parent);
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virtual void MousePress(QMouseEvent *event);
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virtual void MouseMove(QMouseEvent *event);
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virtual void MouseRelease(QMouseEvent *event);
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};
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class ImportTool : public Tool
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{
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public:
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ImportTool(TimelineView* parent);
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virtual void DragEnter(QDragEnterEvent *event) override;
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virtual void DragMove(QDragMoveEvent *event) override;
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virtual void DragLeave(QDragLeaveEvent *event) override;
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virtual void DragDrop(QDropEvent *event) override;
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};
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PointerTool pointer_tool_;
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ImportTool import_tool_;
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void AddGhost(TimelineViewGhostItem* ghost);
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bool HasGhosts();
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rational ScreenToTime(const int& x);
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void ClearGhosts();
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QGraphicsScene scene_;
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double scale_;
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rational timebase_;
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double timebase_dbl_;
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int64_t playhead_;
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QMap<Block*, TimelineViewRect*> clip_items_;
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QVector<TimelineViewGhostItem*> ghost_items_;
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TimelineViewPlayheadItem* playhead_line_;
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private slots:
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/**
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* @brief Slot for when a Block node changes its parameters and the graphics need to update
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*
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* This slot does a static_cast on sender() to Block*, meaning all objects triggering this slot must be Blocks or
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* derivatives.
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*/
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void BlockChanged();
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};
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#endif // TIMELINEVIEW_H
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