/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the demonstration applications of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#include "commands.h"+
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+
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static const int setShapeRectCommandId = 1;+
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static const int setShapeColorCommandId = 2;+
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+
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/******************************************************************************+
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** AddShapeCommand+
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*/+
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+
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AddShapeCommand::AddShapeCommand(Document *doc, const Shape &shape, QUndoCommand *parent)+
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    : QUndoCommand(parent)+
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{+
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    m_doc = doc;+
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    m_shape = shape;+
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}+
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+
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void AddShapeCommand::undo()+
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{+
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    m_doc->deleteShape(m_shapeName);+
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}+
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+
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void AddShapeCommand::redo()+
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{+
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    // A shape only gets a name when it is inserted into a document+
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    m_shapeName = m_doc->addShape(m_shape);+
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    setText(QObject::tr("Add %1").arg(m_shapeName));+
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}+
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+
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/******************************************************************************+
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** RemoveShapeCommand+
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*/+
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+
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RemoveShapeCommand::RemoveShapeCommand(Document *doc, const QString &shapeName,+
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                                        QUndoCommand *parent)+
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    : QUndoCommand(parent)+
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{+
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    setText(QObject::tr("Remove %1").arg(shapeName));+
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    m_doc = doc;+
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    m_shape = doc->shape(shapeName);+
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    m_shapeName = shapeName;+
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}+
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+
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void RemoveShapeCommand::undo()+
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{+
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    m_shapeName = m_doc->addShape(m_shape);+
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}+
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+
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void RemoveShapeCommand::redo()+
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{+
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    m_doc->deleteShape(m_shapeName);+
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}+
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+
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/******************************************************************************+
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** SetShapeColorCommand+
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*/+
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+
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SetShapeColorCommand::SetShapeColorCommand(Document *doc, const QString &shapeName,+
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                                            const QColor &color, QUndoCommand *parent)+
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    : QUndoCommand(parent)+
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{+
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    setText(QObject::tr("Set %1's color").arg(shapeName));+
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+
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    m_doc = doc;+
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    m_shapeName = shapeName;+
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    m_oldColor = doc->shape(shapeName).color();+
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    m_newColor = color;+
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}+
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+
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void SetShapeColorCommand::undo()+
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{+
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    m_doc->setShapeColor(m_shapeName, m_oldColor);+
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}+
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+
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void SetShapeColorCommand::redo()+
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{+
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    m_doc->setShapeColor(m_shapeName, m_newColor);+
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}+
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+
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bool SetShapeColorCommand::mergeWith(const QUndoCommand *command)+
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{+
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    if (command->id() != setShapeColorCommandId)+
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        return false;+
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+
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    const SetShapeColorCommand *other = static_cast<const SetShapeColorCommand*>(command);+
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    if (m_shapeName != other->m_shapeName)+
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        return false;+
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+
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    m_newColor = other->m_newColor;+
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    return true;+
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}+
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+
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int SetShapeColorCommand::id() const+
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{+
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    return setShapeColorCommandId;+
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}+
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+
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/******************************************************************************+
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** SetShapeRectCommand+
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*/+
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+
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SetShapeRectCommand::SetShapeRectCommand(Document *doc, const QString &shapeName,+
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                                            const QRect &rect, QUndoCommand *parent)+
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    : QUndoCommand(parent)+
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{+
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    setText(QObject::tr("Change %1's geometry").arg(shapeName));+
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+
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    m_doc = doc;+
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    m_shapeName = shapeName;+
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    m_oldRect = doc->shape(shapeName).rect();+
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    m_newRect = rect;+
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}+
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+
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void SetShapeRectCommand::undo()+
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{+
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    m_doc->setShapeRect(m_shapeName, m_oldRect);+
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}+
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+
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void SetShapeRectCommand::redo()+
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{+
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    m_doc->setShapeRect(m_shapeName, m_newRect);+
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}+
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+
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bool SetShapeRectCommand::mergeWith(const QUndoCommand *command)+
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{+
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    if (command->id() != setShapeRectCommandId)+
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        return false;+
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+
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    const SetShapeRectCommand *other = static_cast<const SetShapeRectCommand*>(command);+
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    if (m_shapeName != other->m_shapeName)+
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        return false;+
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+
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    m_newRect = other->m_newRect;+
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    return true;+
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}+
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+
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int SetShapeRectCommand::id() const+
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{+
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    return setShapeRectCommandId;+
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}+
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