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/***************************************************************************
UndoTransactionGuard.cpp - guard class for undo transactions
-------------------
begin : Sat May 26, 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. *
* *
***************************************************************************/
#include "config.h"
#include <QString>
#include <KLocalizedString>
#include "libkwave/Plugin.h"
#include "libkwave/PluginManager.h"
#include "libkwave/SignalManager.h"
#include "libkwave/String.h"
#include "libkwave/undo/UndoTransactionGuard.h"
//***************************************************************************
Kwave::UndoTransactionGuard::UndoTransactionGuard(Kwave::SignalManager &manager,
const QString &name)
:m_manager(manager),
m_initial_modified(m_manager.isModified())
{
m_manager.startUndoTransaction(name);
}
//***************************************************************************
Kwave::UndoTransactionGuard::UndoTransactionGuard(Kwave::Plugin &plugin,
const QString &name)
:m_manager(plugin.manager().signalManager()),
m_initial_modified(m_manager.isModified())
{
QString description = (name.length()) ?
name : i18n(UTF8(plugin.name()));
m_manager.startUndoTransaction(description);
}
//***************************************************************************
Kwave::UndoTransactionGuard::~UndoTransactionGuard()
{
m_manager.closeUndoTransaction();
}
//***************************************************************************
bool Kwave::UndoTransactionGuard::registerUndoAction(UndoAction *action)
{
return m_manager.registerUndoAction(action);
}
//***************************************************************************
void Kwave::UndoTransactionGuard::abort()
{
m_manager.abortUndoTransaction();
if (m_manager.isModified() != m_initial_modified)
m_manager.setModified(m_initial_modified);
}
//***************************************************************************
//***************************************************************************
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