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oak-editor/app/timeline/timelineundosplit.h
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2026-01-16 21:22:05 +08:00

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/***
Olive - Non-Linear Video Editor
Copyright (C) 2022 Olive Team
Modifications Copyright (C) 2025 mikesolar
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 TIMELINEUNDOSPLIT_H
#define TIMELINEUNDOSPLIT_H
#include "node/output/track/track.h"
namespace olive
{
class BlockSplitCommand : public UndoCommand {
public:
BlockSplitCommand(Block *block, rational point)
: block_(block)
, new_block_(nullptr)
, point_(point)
, reconnect_tree_command_(nullptr)
{
}
virtual ~BlockSplitCommand() override
{
delete reconnect_tree_command_;
}
virtual Project *GetRelevantProject() const override
{
return block_->project();
}
/**
* @brief Access the second block created as a result. Only valid after redo().
*/
Block *new_block()
{
return new_block_;
}
protected:
virtual void prepare() override;
virtual void redo() override;
virtual void undo() override;
private:
Block *block_;
Block *new_block_;
rational old_length_;
rational point_;
MultiUndoCommand *reconnect_tree_command_;
NodeInput moved_transition_;
};
class BlockSplitPreservingLinksCommand : public UndoCommand {
public:
BlockSplitPreservingLinksCommand(const QVector<Block *> &blocks,
const QList<rational> &times)
: blocks_(blocks)
, times_(times)
{
}
virtual ~BlockSplitPreservingLinksCommand() override
{
qDeleteAll(commands_);
}
virtual Project *GetRelevantProject() const override
{
return blocks_.first()->project();
}
Block *GetSplit(Block *original, int time_index) const;
protected:
virtual void prepare() override;
virtual void redo() override
{
for (int i = 0; i < commands_.size(); i++) {
commands_.at(i)->redo_now();
}
}
virtual void undo() override
{
for (int i = commands_.size() - 1; i >= 0; i--) {
commands_.at(i)->undo_now();
}
}
private:
QVector<Block *> blocks_;
QList<rational> times_;
QVector<UndoCommand *> commands_;
QVector<QVector<Block *>> splits_;
};
class TrackSplitAtTimeCommand : public UndoCommand {
public:
TrackSplitAtTimeCommand(Track *track, rational point)
: track_(track)
, point_(point)
, command_(nullptr)
{
}
virtual ~TrackSplitAtTimeCommand() override
{
delete command_;
}
virtual Project *GetRelevantProject() const override
{
return track_->project();
}
protected:
virtual void prepare() override;
virtual void redo() override
{
if (command_) {
command_->redo_now();
}
}
virtual void undo() override
{
if (command_) {
command_->undo_now();
}
}
private:
Track *track_;
rational point_;
UndoCommand *command_;
};
}
#endif // TIMELINEUNDOSPLIT_H