/****************************************************************************
 **
 ** Copyright (C) 2005-2007 Trolltech ASA. All rights reserved.
 **
 ** This file is part of the demonstration applications of the Qt Toolkit.
 **
 ** This file may be used under the terms of the GNU General Public
 ** License version 2.0 as published by the Free Software Foundation
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 ** this file.  Please review the following information to ensure GNU
 ** General Public Licensing requirements will be met:
 ** http://trolltech.com/products/qt/licenses/licensing/opensource/
 **
 ** If you are unsure which license is appropriate for your use, please
 ** review the following information:
 ** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
 ** or contact the sales department at sales@trolltech.com.
 **
 ** In addition, as a special exception, Trolltech gives you certain
 ** additional rights. These rights are described in the Trolltech GPL
 ** Exception version 1.0, which can be found at
 ** http://www.trolltech.com/products/qt/gplexception/ and in the file
 ** GPL_EXCEPTION.txt in this package.
 **
 ** In addition, as a special exception, Trolltech, as the sole copyright
 ** holder for Qt Designer, grants users of the Qt/Eclipse Integration
 ** plug-in the right for the Qt/Eclipse Integration to link to
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 ** Trolltech ASA (c) 2007
 **
 ** 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 "commands.h"
 
 static const int setShapeRectCommandId = 1;
 static const int setShapeColorCommandId = 2;
 
 /******************************************************************************
 ** AddShapeCommand
 */
 
 AddShapeCommand::AddShapeCommand(Document *doc, const Shape &shape, QUndoCommand *parent)
     : QUndoCommand(parent)
 {
     m_doc = doc;
     m_shape = shape;
 }
 
 void AddShapeCommand::undo()
 {
     m_doc->deleteShape(m_shapeName);
 }
 
 void AddShapeCommand::redo()
 {
     // A shape only gets a name when it is inserted into a document
     m_shapeName = m_doc->addShape(m_shape);
     setText(QObject::tr("Add %1").arg(m_shapeName));
 }
 
 /******************************************************************************
 ** RemoveShapeCommand
 */
 
 RemoveShapeCommand::RemoveShapeCommand(Document *doc, const QString &shapeName,
                                         QUndoCommand *parent)
     : QUndoCommand(parent)
 {
     setText(QObject::tr("Remove %1").arg(shapeName));
     m_doc = doc;
     m_shape = doc->shape(shapeName);
     m_shapeName = shapeName;
 }
 
 void RemoveShapeCommand::undo()
 {
     m_shapeName = m_doc->addShape(m_shape);
 }
 
 void RemoveShapeCommand::redo()
 {
     m_doc->deleteShape(m_shapeName);
 }
 
 /******************************************************************************
 ** SetShapeColorCommand
 */
 
 SetShapeColorCommand::SetShapeColorCommand(Document *doc, const QString &shapeName,
                                             const QColor &color, QUndoCommand *parent)
     : QUndoCommand(parent)
 {
     setText(QObject::tr("Set %1's color").arg(shapeName));
 
     m_doc = doc;
     m_shapeName = shapeName;
     m_oldColor = doc->shape(shapeName).color();
     m_newColor = color;
 }
 
 void SetShapeColorCommand::undo()
 {
     m_doc->setShapeColor(m_shapeName, m_oldColor);
 }
 
 void SetShapeColorCommand::redo()
 {
     m_doc->setShapeColor(m_shapeName, m_newColor);
 }
 
 bool SetShapeColorCommand::mergeWith(const QUndoCommand *command)
 {
     if (command->id() != setShapeColorCommandId)
         return false;
 
     const SetShapeColorCommand *other = static_cast<const SetShapeColorCommand*>(command);
     if (m_shapeName != other->m_shapeName)
         return false;
 
     m_newColor = other->m_newColor;
     return true;
 }
 
 int SetShapeColorCommand::id() const
 {
     return setShapeColorCommandId;
 }
 
 /******************************************************************************
 ** SetShapeRectCommand
 */
 
 SetShapeRectCommand::SetShapeRectCommand(Document *doc, const QString &shapeName,
                                             const QRect &rect, QUndoCommand *parent)
     : QUndoCommand(parent)
 {
     setText(QObject::tr("Change %1's geometry").arg(shapeName));
 
     m_doc = doc;
     m_shapeName = shapeName;
     m_oldRect = doc->shape(shapeName).rect();
     m_newRect = rect;
 }
 
 void SetShapeRectCommand::undo()
 {
     m_doc->setShapeRect(m_shapeName, m_oldRect);
 }
 
 void SetShapeRectCommand::redo()
 {
     m_doc->setShapeRect(m_shapeName, m_newRect);
 }
 
 bool SetShapeRectCommand::mergeWith(const QUndoCommand *command)
 {
     if (command->id() != setShapeRectCommandId)
         return false;
 
     const SetShapeRectCommand *other = static_cast<const SetShapeRectCommand*>(command);
     if (m_shapeName != other->m_shapeName)
         return false;
 
     m_newRect = other->m_newRect;
     return true;
 }
 
 int SetShapeRectCommand::id() const
 {
     return setShapeRectCommandId;
 }