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koffice/chalk/core/kis_selected_transaction.cc

74 lines
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/*
* Copyright (c) 2002 Patrick Julien <freak@codepimps.org>
*
* 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.
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "kis_types.h"
#include "kis_global.h"
#include "kis_selected_transaction.h"
#include "kis_selection.h"
KisSelectedTransaction::KisSelectedTransaction(const TQString& name, KisPaintDeviceSP device) :
KisTransaction(name, device),
m_device(device),
m_hadSelection(device->hasSelection())
{
m_selTransaction = new KisTransaction(name, device->selection().data());
if(! m_hadSelection) {
m_device->deselect(); // let us not be the cause of select
}
}
KisSelectedTransaction::~KisSelectedTransaction()
{
delete m_selTransaction;
}
void KisSelectedTransaction::execute()
{
super::execute();
m_selTransaction->execute();
if(m_redoHasSelection)
m_device->selection();
else
m_device->deselect();
m_device->emitSelectionChanged();
}
void KisSelectedTransaction::unexecute()
{
m_redoHasSelection = m_device->hasSelection();
super::unexecute();
m_selTransaction->unexecute();
if(m_hadSelection)
m_device->selection();
else
m_device->deselect();
m_device->emitSelectionChanged();
}
void KisSelectedTransaction::unexecuteNoUpdate()
{
m_redoHasSelection = m_device->hasSelection();
super::unexecuteNoUpdate();
m_selTransaction->unexecuteNoUpdate();
if(m_hadSelection)
m_device->selection();
else
m_device->deselect();
}