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koffice/karbon/shapes/vrectangle.cc

230 lines
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/* 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 "vrectangle.h"
#include <klocale.h>
#include <KoUnit.h>
#include <KoStore.h>
#include <KoXmlWriter.h>
#include <KoXmlNS.h>
#include <tqdom.h>
#include <kdebug.h>
#include "vglobal.h"
#include <vdocument.h>
#include "vtransformcmd.h"
VRectangle::VRectangle( VObject* parent, VState state )
: VPath( parent, state )
{
}
VRectangle::VRectangle( VObject* parent,
const KoPoint& topLeft, double width, double height, double rx, double ry )
: VPath( parent ), m_topLeft( topLeft ), m_width( width), m_height( height ), m_rx( rx ), m_ry( ry )
{
setDrawCenterNode();
if( m_rx < 0.0 ) m_rx = 0.0;
if( m_ry < 0.0 ) m_ry = 0.0;
// Catch case, when radius is larger than width or height:
if( m_rx > m_width * 0.5 )
m_rx = m_width * 0.5;
if( m_ry > m_height * 0.5 )
m_ry = m_height * 0.5;
init();
}
void
VRectangle::init()
{
if( m_rx == 0 && m_ry == 0 )
{
moveTo( m_topLeft );
lineTo( KoPoint( m_topLeft.x(), m_topLeft.y() - m_height ) );
lineTo( KoPoint( m_topLeft.x() + m_width, m_topLeft.y() - m_height ) );
lineTo( KoPoint( m_topLeft.x() + m_width, m_topLeft.y() ) );
}
else
{
double rx = m_rx;
double ry = m_ry;
double x = m_topLeft.x();
double y = m_topLeft.y();
moveTo( KoPoint( x + rx, y ) );
curveTo( KoPoint( x + rx * ( 1 - 0.552 ), y ),
KoPoint( x, y - ry * ( 1 - 0.552 ) ),
KoPoint( x, y - ry ) );
if( ry < m_height / 2 )
lineTo( KoPoint( x, y - m_height + ry ) );
curveTo( KoPoint( x, y - m_height + ry * ( 1 - 0.552 ) ),
KoPoint( x + rx * ( 1 - 0.552 ), y - m_height ),
KoPoint( x + rx, y - m_height ) );
if( rx < m_width / 2 )
lineTo( KoPoint( x + m_width - rx, y - m_height ) );
curveTo( KoPoint( x + m_width - rx * ( 1 - 0.552 ), y - m_height ),
KoPoint( x + m_width, y - m_height + ry * ( 1 - 0.552 ) ),
KoPoint( x + m_width, y - m_height + ry ) );
if( ry < m_height / 2 )
lineTo( KoPoint( x + m_width, y - ry ) );
curveTo( KoPoint( x + m_width, y - ry * ( 1 - 0.552 ) ),
KoPoint( x + m_width - rx * ( 1 - 0.552 ), y ),
KoPoint( x + m_width - rx, y ) );
if( rx < m_width / 2 )
lineTo( KoPoint( x + rx, y ) );
}
close();
}
TQString
VRectangle::name() const
{
TQString result = VObject::name();
return !result.isEmpty() ? result : i18n( "Rectangle" );
}
void
VRectangle::save( TQDomElement& element ) const
{
VDocument *doc = document();
if( doc && doc->saveAsPath() )
{
VPath::save( element );
return;
}
if( state() != deleted )
{
TQDomElement me = element.ownerDocument().createElement( "RECT" );
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( "rx", m_rx );
me.setAttribute( "ry", m_ry );
TQString transform = buildSvgTransform();
if( !transform.isEmpty() )
me.setAttribute( "transform", transform );
}
}
void
VRectangle::saveOasis( KoStore *store, KoXmlWriter *docWriter, KoGenStyles &mainStyles, int &index ) const
{
// do not save deleted objects
if( state() == deleted )
return;
// different rx/ry is not supported by oasis, so act like it is a normal path
if( m_rx != 0. && m_ry != 0. && m_rx != m_ry )
return VPath::saveOasis( store, docWriter, mainStyles, index );
docWriter->startElement( "draw:rect" );
//save all into pt
docWriter->addAttributePt( "svg:x", m_topLeft.x() );
docWriter->addAttributePt( "svg:y", m_topLeft.y()-m_height );
docWriter->addAttributePt( "svg:width", m_width );
docWriter->addAttributePt( "svg:height", m_height );
if( m_rx != 0. && m_ry != 0. && m_rx == m_ry )
docWriter->addAttributePt( "draw:corner-radius", m_rx );
VObject::saveOasis( store, docWriter, mainStyles, index );
TQWMatrix tmpMat;
tmpMat.scale( 1, -1 );
tmpMat.translate( 0, -document()->height() );
TQString transform = buildOasisTransform( m_matrix*tmpMat );
if( !transform.isEmpty() )
docWriter->addAttribute( "draw:transform", transform );
docWriter->endElement();
}
bool
VRectangle::loadOasis( const TQDomElement &element, KoOasisLoadingContext &context )
{
setState( normal );
m_width = KoUnit::parseValue( element.attributeNS( KoXmlNS::svg, "width", TQString() ), 10.0 );
m_height = KoUnit::parseValue( element.attributeNS( KoXmlNS::svg, "height", TQString() ), 10.0 );
m_topLeft.setX( KoUnit::parseValue( element.attributeNS( KoXmlNS::svg, "x", TQString() ) ) );
m_topLeft.setY( m_height + KoUnit::parseValue( element.attributeNS( KoXmlNS::svg, "y", TQString() ) ) );
m_rx = m_ry = KoUnit::parseValue( element.attributeNS( KoXmlNS::draw, "corner-radius", 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 );
}
void
VRectangle::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_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" ) ) );
m_rx = KoUnit::parseValue( element.attribute( "rx" ) );
m_ry = KoUnit::parseValue( element.attribute( "ry" ) );
init();
TQString trafo = element.attribute( "transform" );
if( !trafo.isEmpty() )
transform( trafo );
}
VPath*
VRectangle::clone() const
{
return new VRectangle( *this );
}