libs/flake

KoShapeShearCommand.cpp

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00001 /* This file is part of the KDE project
00002  * Copyright (C) 2006 Thomas Zander <zander@kde.org>
00003  * Copyright (C) 2006 Jan Hambrecht <jaham@gmx.net>
00004  *
00005  * This library is free software; you can redistribute it and/or
00006  * modify it under the terms of the GNU Library General Public
00007  * License as published by the Free Software Foundation; either
00008  * version 2 of the License, or (at your option) any later version.
00009  *
00010  * This library is distributed in the hope that it will be useful,
00011  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013  * Library General Public License for more details.
00014  *
00015  * You should have received a copy of the GNU Library General Public License
00016  * along with this library; see the file COPYING.LIB.  If not, write to
00017  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00018  * Boston, MA 02110-1301, USA.
00019  */
00020 
00021 #include "KoShapeShearCommand.h"
00022 #include "KoShape.h"
00023 
00024 #include <klocale.h>
00025 
00026 KoShapeShearCommand::KoShapeShearCommand(const QList<KoShape*> &shapes, QList<qreal> &previousShearXs, QList<qreal> &previousShearYs, QList<qreal> &newShearXs, QList<qreal> &newShearYs, QUndoCommand *parent)
00027         : QUndoCommand(parent)
00028         , m_shapes(shapes)
00029         , m_previousShearXs(previousShearXs)
00030         , m_previousShearYs(previousShearYs)
00031         , m_newShearXs(newShearXs)
00032         , m_newShearYs(newShearYs)
00033 {
00034     Q_ASSERT(m_shapes.count() == m_previousShearXs.count());
00035     Q_ASSERT(m_shapes.count() == m_previousShearYs.count());
00036     Q_ASSERT(m_shapes.count() == m_newShearXs.count());
00037     Q_ASSERT(m_shapes.count() == m_newShearYs.count());
00038 
00039     setText(i18n("Shear shapes"));
00040 }
00041 
00042 void KoShapeShearCommand::redo()
00043 {
00044     QUndoCommand::redo();
00045     for (int i = 0; i < m_shapes.count(); i++) {
00046         m_shapes.at(i)->update();
00047         m_shapes.at(i)->setShear(m_newShearXs.at(i), m_newShearYs.at(i));
00048         m_shapes.at(i)->update();
00049     }
00050 }
00051 
00052 void KoShapeShearCommand::undo()
00053 {
00054     QUndoCommand::undo();
00055     for (int i = 0; i < m_shapes.count(); i++) {
00056         m_shapes.at(i)->update();
00057         m_shapes.at(i)->setShear(m_previousShearXs.at(i), m_previousShearYs.at(i));
00058         m_shapes.at(i)->update();
00059     }
00060 }