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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the demonstration applications of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 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 the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#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;
}
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