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/***************************************************************************
UndoModifyAction.h - UndoAction for modifications on samples
-------------------
begin : May 25 2001
copyright : (C) 2001 by Thomas Eschenbacher
email : Thomas Eschenbacher <thomas.eschenbacher@gmx.de>
***************************************************************************/
/***************************************************************************
* *
* 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 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#ifndef UNDO_MODIFY_ACTION_H
#define UNDO_MODIFY_ACTION_H
#include "config.h"
#include <QString>
#include "libkwave/Sample.h"
#include "libkwave/Stripe.h"
#include "libkwave/undo/UndoAction.h"
namespace Kwave
{
class UndoModifyAction: public UndoAction
{
public:
/**
* Constructor.
* @param track index of the track
* @param offset index of the first modified sample
* @param length number of samples
*/
UndoModifyAction(unsigned int track, sample_index_t offset,
sample_index_t length);
/** Destructor */
~UndoModifyAction() override;
/** @see UndoAction::description() */
QString description() override;
/** @see UndoAction::undoSize() */
qint64 undoSize() override;
/** @see UndoAction::redoSize() */
qint64 redoSize() override { return undoSize(); }
/**
* @see UndoAction::store()
*/
bool store(Kwave::SignalManager &manager) override;
/**
* Exchange samples from the current signal and the internal undo
* buffer. So this instance will be re-used for redo and so does not
* require any extra memory for redo.
* @see UndoAction::undo()
*/
virtual UndoAction *undo(Kwave::SignalManager &manager, bool with_redo)
override;
protected:
/** index of the modified track */
unsigned int m_track;
/** first sample */
sample_index_t m_offset;
/** number of samples */
sample_index_t m_length;
/** storage for all deleted stripes */
QList<Kwave::Stripe::List> m_stripes;
};
}
#endif /* UNDO_MODIFY_ACTION_H */
//***************************************************************************
//***************************************************************************
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