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oak-editor/app/node/output/track/tracklist.h
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/***
Olive - Non-Linear Video Editor
Copyright (C) 2019 Olive Team
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
***/
#ifndef TRACKLIST_H
#define TRACKLIST_H
#include <QObject>
#include "node/graph.h"
#include "node/output/track/track.h"
#include "timeline/tracktypes.h"
class ViewerOutput;
class TrackList : public QObject {
Q_OBJECT
public:
TrackList(ViewerOutput *parent, const enum TrackType& type, NodeInputArray* track_input);
const enum TrackType& type() const;
const QVector<TrackOutput*>& Tracks() const;
TrackOutput* TrackAt(int index) const;
TrackOutput *AddTrack();
void RemoveTrack();
const rational& TrackLength() const;
const enum TrackType& TrackType() const;
int TrackCount() const;
signals:
void BlockAdded(Block* block, int index);
void BlockRemoved(Block* block);
void TrackAdded(TrackOutput* track);
void TrackRemoved(TrackOutput* track);
void TrackListChanged();
void LengthChanged(const rational &length);
void TrackHeightChanged(int index, int height);
private:
NodeGraph* GetParentGraph() const;
/**
* @brief A cache of connected Tracks
*/
QVector<TrackOutput*> track_cache_;
NodeInputArray* track_input_;
rational total_length_;
enum TrackType type_;
private slots:
/**
* @brief Slot for when the track connection is added
*/
void TrackConnected(NodeEdgePtr edge);
/**
* @brief Slot for when the track connection is removed
*/
void TrackDisconnected(NodeEdgePtr edge);
/**
* @brief Slot for when a connected Track has added a Block so we can update the UI
*/
void TrackAddedBlock(Block* block);
/**
* @brief Slot for when a connected Track has added a Block so we can update the UI
*/
void TrackRemovedBlock(Block* block);
/**
* @brief Slot for when the count of tracks in the track input changes
*/
void TrackListSizeChanged(int size);
/**
* @brief Slot for when any of the track's length changes so we can update the length of the tracklist
*/
void UpdateTotalLength();
/**
* @brief Slot when a track height changes, transforms to the TrackHeightChanged signal which includes a track index
*/
void TrackHeightChangedSlot(int height);
};
#endif // TRACKLIST_H