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oak-editor/app/timeline/timelineundotrack.h
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/***
Olive - Non-Linear Video Editor
Copyright (C) 2022 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 TIMELINEUNDOTRACK_H
#define TIMELINEUNDOTRACK_H
#include "node/output/track/track.h"
namespace olive {
class TrackRippleRemoveBlockCommand : public UndoCommand
{
public:
TrackRippleRemoveBlockCommand(Track* track, Block* block) :
track_(track),
block_(block)
{
}
virtual Project* GetRelevantProject() const override
{
return track_->project();
}
protected:
virtual void redo() override
{
before_ = block_->previous();
track_->RippleRemoveBlock(block_);
}
virtual void undo() override
{
track_->InsertBlockAfter(block_, before_);
}
private:
Track* track_;
Block* block_;
Block* before_;
};
class TrackPrependBlockCommand : public UndoCommand
{
public:
TrackPrependBlockCommand(Track* track, Block* block) :
track_(track),
block_(block)
{
}
virtual Project* GetRelevantProject() const override
{
return track_->project();
}
protected:
virtual void redo() override
{
track_->PrependBlock(block_);
}
virtual void undo() override
{
track_->RippleRemoveBlock(block_);
}
private:
Track* track_;
Block* block_;
};
class TrackInsertBlockAfterCommand : public UndoCommand
{
public:
TrackInsertBlockAfterCommand(Track* track, Block* block, Block* before) :
track_(track),
block_(block),
before_(before)
{
}
virtual Project* GetRelevantProject() const override
{
return block_->project();
}
protected:
virtual void redo() override
{
track_->InsertBlockAfter(block_, before_);
}
virtual void undo() override
{
track_->RippleRemoveBlock(block_);
}
private:
Track* track_;
Block* block_;
Block* before_;
};
/**
* @brief Replaces Block `old` with Block `replace`
*
* Both blocks must have equal lengths.
*/
class TrackReplaceBlockCommand : public UndoCommand
{
public:
TrackReplaceBlockCommand(Track* track, Block* old, Block* replace) :
track_(track),
old_(old),
replace_(replace)
{
}
virtual Project* GetRelevantProject() const override
{
return track_->project();
}
protected:
virtual void redo() override
{
track_->ReplaceBlock(old_, replace_);
}
virtual void undo() override
{
track_->ReplaceBlock(replace_, old_);
}
private:
Track* track_;
Block* old_;
Block* replace_;
};
}
#endif // TIMELINEUNDOTRACK_H