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/***************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Qt Software Information (qt-info@nokia.com)
**
**
** Non-Open Source Usage
**
** Licensees may use this file in accordance with the Qt Beta Version
** License Agreement, Agreement version 2.2 provided with the Software or,
** alternatively, in accordance with the terms contained in a written
** agreement between you and Nokia.
**
** GNU General Public License Usage
**
** Alternatively, this file may be used under the terms of the GNU General
** Public License versions 2.0 or 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the packaging
** of this file. Please review the following information to ensure GNU
** General Public Licensing requirements will be met:
**
** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
** http://www.gnu.org/copyleft/gpl.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt GPL Exception version
** 1.2, included in the file GPL_EXCEPTION.txt in this package.
**
***************************************************************************/
/****************************************************************************
**
** Copyright (C) 2008-$THISYEAR$ $TROLLTECH$. All rights reserved.
**
** This file is part of the $MODULE$ of the Qt Toolkit.
**
** $TROLLTECH_DUAL_LICENSE$
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/
#include "undocommands_p.h"
#include <QtCore/QModelIndex>
namespace SharedTools {
ViewCommand::ViewCommand(ResourceView *view)
: m_view(view)
{ }
ViewCommand::~ViewCommand()
{ }
ModelIndexViewCommand::ModelIndexViewCommand(ResourceView *view)
: ViewCommand(view)
{ }
ModelIndexViewCommand::~ModelIndexViewCommand()
{ }
void ModelIndexViewCommand::storeIndex(const QModelIndex &index)
{
if (m_view->isPrefix(index)) {
m_prefixArrayIndex = index.row();
m_fileArrayIndex = -1;
} else {
m_fileArrayIndex = index.row();
m_prefixArrayIndex = m_view->model()->parent(index).row();
}
}
QModelIndex ModelIndexViewCommand::makeIndex() const
{
const QModelIndex prefixModelIndex
= m_view->model()->index(m_prefixArrayIndex, 0, QModelIndex());
if (m_fileArrayIndex != -1) {
// File node
const QModelIndex fileModelIndex
= m_view->model()->index(m_fileArrayIndex, 0, prefixModelIndex);
return fileModelIndex;
} else {
// Prefix node
return prefixModelIndex;
}
}
ModifyPropertyCommand::ModifyPropertyCommand(ResourceView *view, const QModelIndex &nodeIndex,
ResourceView::NodeProperty property, const int mergeId, const QString &before,
const QString &after)
: ModelIndexViewCommand(view), m_property(property), m_before(before), m_after(after),
m_mergeId(mergeId)
{
storeIndex(nodeIndex);
}
bool ModifyPropertyCommand::mergeWith(const QUndoCommand * command)
{
const ModifyPropertyCommand * const brother
= dynamic_cast<const ModifyPropertyCommand *>(command);
if ((command == NULL) || (m_property != brother->m_property))
return false;
// Choose older command (this) and forgot the other
return true;
}
void ModifyPropertyCommand::undo()
{
Q_ASSERT(m_view != NULL);
// Save current text in m_after for redo()
m_after = m_view->getCurrentValue(m_property);
// Reset text to m_before
m_view->changeValue(makeIndex(), m_property, m_before);
}
void ModifyPropertyCommand::redo()
{
// Prevent execution from within QUndoStack::push
if (m_after.isNull()) {
return;
}
// Bring back text before undo
Q_ASSERT(m_view != NULL);
m_view->changeValue(makeIndex(), m_property, m_after);
}
RemoveEntryCommand::RemoveEntryCommand(ResourceView *view, const QModelIndex &index)
: ModelIndexViewCommand(view), m_entry(NULL), m_isExpanded(true)
{
storeIndex(index);
}
RemoveEntryCommand::~RemoveEntryCommand()
{
freeEntry();
}
void RemoveEntryCommand::redo()
{
freeEntry();
const QModelIndex index = makeIndex();
m_isExpanded = m_view->isExpanded(index);
m_entry = m_view->removeEntry(index);
}
void RemoveEntryCommand::undo()
{
if (m_entry != NULL) {
m_entry->restore();
Q_ASSERT(m_view != NULL);
const QModelIndex index = makeIndex();
m_view->setExpanded(index, m_isExpanded);
m_view->setCurrentIndex(index);
freeEntry();
}
}
void RemoveEntryCommand::freeEntry()
{
delete m_entry;
m_entry = NULL;
}
AddFilesCommand::AddFilesCommand(ResourceView *view, int prefixIndex, int cursorFileIndex,
const QStringList &fileNames)
: ViewCommand(view), m_prefixIndex(prefixIndex), m_cursorFileIndex(cursorFileIndex),
m_fileNames(fileNames)
{ }
void AddFilesCommand::redo()
{
m_view->addFiles(m_prefixIndex, m_fileNames, m_cursorFileIndex, m_firstFile, m_lastFile);
}
void AddFilesCommand::undo()
{
m_view->removeFiles(m_prefixIndex, m_firstFile, m_lastFile);
}
AddEmptyPrefixCommand::AddEmptyPrefixCommand(ResourceView *view)
: ViewCommand(view)
{ }
void AddEmptyPrefixCommand::redo()
{
m_prefixArrayIndex = m_view->addPrefix().row();
}
void AddEmptyPrefixCommand::undo()
{
const QModelIndex prefixModelIndex = m_view->model()->index(
m_prefixArrayIndex, 0, QModelIndex());
delete m_view->removeEntry(prefixModelIndex);
}
} // namespace SharedTools
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