vpolygon.cpp

/* This file is part of the KDE project
   Copyright (C) 2001, 2002, 2003 The Karbon Developers
 
   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 <tqdom.h>
 
#include "vglobal.h"
#include "vpolygon.h"
#include "vtransformcmd.h"
#include <tdelocale.h>
#include <KoUnit.h>
#include <KoStore.h>
#include <KoXmlWriter.h>
#include <KoXmlNS.h>
#include <vdocument.h>
 
VPolygon::VPolygon( VObject* parent, VState state ) 
    : VPath( parent, state )
{
}
 
VPolygon::VPolygon( VObject* parent, const TQString &points,
        const KoPoint& topLeft, double width, double height )
    : VPath( parent ), m_topLeft( topLeft ), m_width( width), m_height( height ), m_points( points )
{
    init();
}
 
void
VPolygon::init()
{
    bool bFirst = true;
 
    TQString points = m_points.simplifyWhiteSpace();
    points.replace( ',', ' ' );
    points.remove( '\r' );
    points.remove( '\n' );
    TQStringList pointList = TQStringList::split( ' ', points );
    TQStringList::Iterator end(pointList.end());
    for( TQStringList::Iterator it = pointList.begin(); it != end; ++it )
    {
        KoPoint point;
        point.setX( (*it).toDouble() );
        point.setY( (*++it).toDouble() );
        if( bFirst )
        {
            moveTo( point );
            bFirst = false;
        }
        else
            lineTo( point );
    }
    close();
 
    TQWMatrix m;
    m.translate( m_topLeft.x(), m_topLeft.y() );
 
    // only tranform the path data
    VTransformCmd cmd( 0L, m );
    cmd.VVisitor::visitVPath( *this );
}
 
TQString
VPolygon::name() const
{
    TQString result = VObject::name();
    return !result.isEmpty() ? result : i18n( "Polygon" );
}
 
void
VPolygon::save( TQDomElement& element ) const
{
    VDocument *doc = document();
    if( doc && doc->saveAsPath() )
    {
        VPath::save( element );
        return;
    }
 
    if( state() != deleted )
    {
        TQDomElement me = element.ownerDocument().createElement( "POLYGON" );
        element.appendChild( me );
 
        // save fill/stroke untransformed
        VPath path( *this );
        VTransformCmd cmd( 0L, m_matrix.invert() );
        cmd.visit( path );
        path.VObject::save( me );
        //VObject::save( me );
 
        me.setAttribute( "x", m_topLeft.x() );
        me.setAttribute( "y", m_topLeft.y() );
 
        me.setAttribute( "width", TQString("%1pt").arg( m_width ) );
        me.setAttribute( "height", TQString("%1pt").arg( m_height ) );
 
        me.setAttribute( "points", m_points );
 
        TQString transform = buildSvgTransform();
        if( !transform.isEmpty() )
            me.setAttribute( "transform", transform );
    }
}
 
void
VPolygon::saveOasis( KoStore *store, KoXmlWriter *docWriter, KoGenStyles &mainStyles, int &index ) const
{
    // do not save deleted objects
    if( state() == deleted )
        return;
 
    docWriter->startElement( "draw:polygon" );
 
    docWriter->addAttribute( "draw:points", m_points );
 
    VObject::saveOasis( store, docWriter, mainStyles, index );
 
    docWriter->endElement();
}
 
void
VPolygon::load( const TQDomElement& element )
{
    setState( normal );
 
    TQDomNodeList list = element.childNodes();
    for( uint i = 0; i < list.count(); ++i )
        if( list.item( i ).isElement() )
            VObject::load( list.item( i ).toElement() );
 
    m_points = element.attribute( "points" );
 
    m_width  = KoUnit::parseValue( element.attribute( "width" ), 10.0 );
    m_height = KoUnit::parseValue( element.attribute( "height" ), 10.0 );
 
    m_topLeft.setX( KoUnit::parseValue( element.attribute( "x" ) ) );
    m_topLeft.setY( KoUnit::parseValue( element.attribute( "y" ) ) );
 
    init();
 
    TQString trafo = element.attribute( "transform" );
    if( !trafo.isEmpty() )
        transform( trafo );
}
 
bool
VPolygon::loadOasis( const TQDomElement &element, KoOasisLoadingContext &context )
{
    setState( normal );
 
    m_points = element.attributeNS( KoXmlNS::draw, "points", TQString() );
 
    init();
 
    transformByViewbox( element, element.attributeNS( KoXmlNS::svg, "viewBox", TQString() ) );
 
    TQString trafo = element.attributeNS( KoXmlNS::draw, "transform", TQString() );
    if( !trafo.isEmpty() )
        transformOasis( trafo );
 
    return VObject::loadOasis( element, context );
}
 
VPath* 
VPolygon::clone() const
{
    return new VPolygon( *this );
}