F:/KPlato/koffice/libs/flake/KoPathControlPointMoveStrategy.cpp

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/* This file is part of the KDE project
 * Copyright (C) 2006 Jan Hambrecht <jaham@gmx.net>
 * Copyright (C) 2006 Thorsten Zachmann <zachmann@kde.org>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public License
 * along with this library; see the file COPYING.LIB.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 */

#include "KoPathControlPointMoveStrategy.h"

#include "KoPathTool.h"
#include "KoPathCommand.h"

KoPathControlPointMoveStrategy::KoPathControlPointMoveStrategy( KoPathTool *tool, KoCanvasBase *canvas, KoPathPoint *point, KoPathPoint::KoPointType type, const QPointF &pos )
: KoInteractionStrategy( tool, canvas )
, m_lastPosition( pos )
, m_move( 0, 0 )
, m_tool( tool )    
, m_point( point )    
, m_pointType( type )    
{
}

KoPathControlPointMoveStrategy::~KoPathControlPointMoveStrategy() 
{
}

void KoPathControlPointMoveStrategy::handleMouseMove( const QPointF &mouseLocation, Qt::KeyboardModifiers modifiers )
{
    QPointF docPoint = m_tool->snapToGrid( mouseLocation, modifiers );
    QPointF move = docPoint - m_lastPosition;
    // as the last position can change when the top left is changed we have
    // to save it in document pos and not in shape pos
    m_lastPosition = docPoint;

    m_move += move;

    KoControlPointMoveCommand cmd( m_point, move, m_pointType );
    cmd.execute();
}

void KoPathControlPointMoveStrategy::finishInteraction( Qt::KeyboardModifiers modifiers ) 
{ 
    Q_UNUSED( modifiers );
}

KCommand* KoPathControlPointMoveStrategy::createCommand()
{
    KCommand *cmd = 0;
    if( !m_move.isNull() )
    {
        cmd = new KoControlPointMoveCommand( m_point, m_move, m_pointType );
    }
    return cmd;
}

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