142 lines
3.9 KiB
C++
142 lines
3.9 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 "node/output/timeline/timeline.h"
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#include "timelineplayhead.h"
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#include "timelineviewblockitem.h"
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#include "timelineviewmouseevent.h"
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#include "timelineviewenditem.h"
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#include "timelineviewghostitem.h"
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#include "widget/timelinewidget/undo/undo.h"
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#include "undo/undostack.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, public TimelineScaledObject
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{
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Q_OBJECT
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public:
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TimelineView(const TrackType& type,
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Qt::Alignment vertical_alignment = Qt::AlignTop,
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QWidget* parent = nullptr);
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void SetScale(const double& scale);
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void SelectAll();
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void DeselectAll();
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void SetEndTime(const rational& length);
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int GetTrackY(int track_index);
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int GetTrackHeight(int track_index);
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QPoint GetScrollCoordinates();
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void SetScrollCoordinates(const QPoint& pt);
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void ConnectTrackList(TrackList* list);
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public slots:
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void SetTimebase(const rational& timebase);
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void SetTime(const int64_t time);
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signals:
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void ScaleChanged(double scale);
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void TimeChanged(const int64_t& time);
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void MousePressed(TimelineViewMouseEvent* event);
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void MouseMoved(TimelineViewMouseEvent* event);
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void MouseReleased(TimelineViewMouseEvent* event);
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void MouseDoubleClicked(TimelineViewMouseEvent* event);
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void DragEntered(TimelineViewMouseEvent* event);
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void DragMoved(TimelineViewMouseEvent* event);
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void DragLeft(QDragLeaveEvent* event);
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void DragDropped(TimelineViewMouseEvent* event);
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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 mouseDoubleClickEvent(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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virtual void resizeEvent(QResizeEvent *event) override;
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virtual void drawForeground(QPainter *painter, const QRectF &rect) override;
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private:
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TrackType ConnectedTrackType();
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Stream::Type TrackTypeToStreamType(TrackType track_type);
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TimelineCoordinate ScreenToCoordinate(const QPoint& pt);
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TimelineCoordinate SceneToCoordinate(const QPointF& pt);
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int SceneToTrack(double y);
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void UserSetTime(const int64_t& time);
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rational GetPlayheadTime();
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void UpdatePlayheadRect();
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TrackList* connected_track_list_;
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QGraphicsScene scene_;
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int64_t playhead_;
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TimelineViewEndItem* end_item_;
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TimelinePlayhead playhead_style_;
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QRect playhead_rect_;
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TrackType type_;
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private slots:
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/**
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* @brief Slot called whenever the view resizes or the scene contents change to enforce minimum scene sizes
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*/
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void UpdateSceneRect();
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};
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#endif // TIMELINEVIEW_H
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