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

115 lines
1.9 KiB
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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 UNDOCOMMAND_H
#define UNDOCOMMAND_H
#include <list>
#include <QString>
#include <vector>
#include "common/define.h"
namespace olive
{
class Project;
class UndoCommand {
public:
UndoCommand();
virtual ~UndoCommand()
{
}
DISABLE_COPY_MOVE(UndoCommand)
bool has_prepared() const
{
return prepared_;
}
void set_prepared(bool e)
{
prepared_ = true;
}
void redo_now();
void undo_now();
void redo_and_set_modified();
void undo_and_set_modified();
virtual Project *GetRelevantProject() const = 0;
protected:
virtual void prepare()
{
}
virtual void redo() = 0;
virtual void undo() = 0;
private:
bool modified_;
Project *project_;
bool prepared_;
bool done_;
};
class MultiUndoCommand : public UndoCommand {
public:
MultiUndoCommand() = default;
virtual Project *GetRelevantProject() const override
{
return nullptr;
}
void add_child(UndoCommand *command)
{
children_.push_back(command);
}
int child_count() const
{
return children_.size();
}
UndoCommand *child(int i) const
{
return children_[i];
}
protected:
virtual void redo() override;
virtual void undo() override;
private:
std::vector<UndoCommand *> children_;
};
}
#endif // UNDOCOMMAND_H