129 lines
2.9 KiB
C++
129 lines
2.9 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 TIMELINEOUTPUT_H
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#define TIMELINEOUTPUT_H
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#include "common/timelinecommon.h"
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#include "node/block/block.h"
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#include "node/output/track/track.h"
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/**
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* @brief Node that represents the end of the Timeline as well as a time traversal Node
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*/
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class TimelineOutput : public Node
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{
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Q_OBJECT
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public:
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TimelineOutput();
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virtual QString Name() override;
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virtual QString id() override;
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virtual QString Category() override;
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virtual QString Description() override;
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const rational& Timebase();
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void SetTimebase(const rational& timebase);
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NodeInput* track_input();
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NodeOutput* length_output();
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const QVector<TrackOutput*>& Tracks();
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TrackOutput* TrackAt(int index);
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void AddTrack();
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void RemoveTrack();
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public slots:
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/**
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* @brief Slot for when the track connection is added
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*/
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void TrackConnectionAdded(NodeEdgePtr edge);
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/**
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* @brief Slot for when the track connection is removed
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*/
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void TrackConnectionRemoved(NodeEdgePtr edge);
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/**
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* @brief Slot for when a connected Track has added a Block so we can update the UI
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*/
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void TrackAddedBlock(Block* block);
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/**
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* @brief Slot for when a connected Track has added a Block so we can update the UI
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*/
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void TrackRemovedBlock(Block* block);
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/**
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* @brief Slot for when an attached Track has an edge added
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*/
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void TrackEdgeAdded(NodeEdgePtr edge);
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/**
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* @brief Slot for when an attached Track has an edge added
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*/
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void TrackEdgeRemoved(NodeEdgePtr edge);
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signals:
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void TimebaseChanged(const rational &timebase);
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void TimelineCleared();
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void BlockAdded(Block* block, int index);
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void BlockRemoved(Block* block);
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void TrackAdded(TrackOutput* track);
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void TrackRemoved(TrackOutput* track);
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protected:
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virtual QVariant Value(NodeOutput* output, const rational& time) override;
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private:
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rational GetSequenceLength();
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TrackOutput* attached_track();
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void AttachTrack(TrackOutput *track);
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void DetachTrack(TrackOutput* track);
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static TrackOutput* TrackFromBlock(Block* block);
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NodeInput* track_input_;
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NodeOutput* length_output_;
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/**
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* @brief A cache of connected Tracks
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*/
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QVector<TrackOutput*> track_cache_;
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rational timebase_;
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};
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#endif // TIMELINEOUTPUT_H
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