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-rw-r--r--karbon/core/vcomposite.cpp775
1 files changed, 775 insertions, 0 deletions
diff --git a/karbon/core/vcomposite.cpp b/karbon/core/vcomposite.cpp
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--- /dev/null
+++ b/karbon/core/vcomposite.cpp
@@ -0,0 +1,775 @@
+/* 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 <tqpainter.h>
+#include <tqwmatrix.h>
+#include <tqregexp.h>
+
+#include <KoPoint.h>
+#include <KoRect.h>
+#include <KoUnit.h>
+#include <KoStore.h>
+#include <KoXmlWriter.h>
+#include <KoXmlNS.h>
+#include <KoGenStyles.h>
+
+#include "vcomposite.h"
+#include "vcomposite_iface.h"
+#include "vfill.h"
+#include "vpainter.h"
+#include "vsegment.h"
+#include "vstroke.h"
+#include "vvisitor.h"
+#include "vpath.h"
+#include "commands/vtransformcmd.h"
+#include "vdocument.h"
+
+#include <kdebug.h>
+
+
+VPath::VPath( VObject* parent, VState state )
+ : VObject( parent, state ), m_fillRule( winding )
+{
+ m_paths.setAutoDelete( true );
+
+ // add an initial path:
+ m_paths.append( new VSubpath( this ) );
+
+ // we need a stroke for boundingBox() at anytime:
+ m_stroke = new VStroke( this );
+ m_fill = new VFill();
+
+ m_drawCenterNode = false;
+}
+
+VPath::VPath( const VPath& composite )
+ : VObject( composite ), SVGPathParser()
+{
+ m_paths.setAutoDelete( true );
+
+ VSubpath* path;
+
+ VSubpathListIterator itr( composite.m_paths );
+ for( itr.toFirst(); itr.current(); ++itr )
+ {
+ path = itr.current()->clone();
+ path->setParent( this );
+ m_paths.append( path );
+ }
+
+ if ( composite.stroke() )
+ setStroke( *composite.stroke() );
+
+ if ( composite.fill() )
+ setFill( *composite.fill() );
+
+ m_drawCenterNode = false;
+ m_fillRule = composite.m_fillRule;
+ m_matrix = composite.m_matrix;
+}
+
+VPath::~VPath()
+{
+}
+
+DCOPObject* VPath::dcopObject()
+{
+ if ( !m_dcop )
+ m_dcop = new VPathIface( this );
+
+ return m_dcop;
+}
+
+
+void
+VPath::draw( VPainter* painter, const KoRect *rect ) const
+{
+ if(
+ state() == deleted ||
+ state() == hidden ||
+ state() == hidden_locked )
+ {
+ return;
+ }
+
+ if( rect && !rect->intersects( boundingBox() ) )
+ return;
+
+ painter->save();
+
+ VSubpathListIterator itr( m_paths );
+
+ // draw simplistic contour:
+ if( state() == edit )
+ {
+ for( itr.toFirst(); itr.current(); ++itr )
+ {
+ if( !itr.current()->isEmpty() )
+ {
+ painter->newPath();
+ painter->setRasterOp( TQt::XorROP );
+ painter->setPen( TQt::yellow );
+ painter->setBrush( TQt::NoBrush );
+
+ VSubpathIterator jtr( *( itr.current() ) );
+ for( ; jtr.current(); ++jtr )
+ {
+ jtr.current()->draw( painter );
+ }
+
+ painter->strokePath();
+ }
+ }
+ }
+ else if( state() != edit )
+ {
+ // paint fill:
+ painter->newPath();
+ painter->setFillRule( m_fillRule );
+
+ for( itr.toFirst(); itr.current(); ++itr )
+ {
+ if( !itr.current()->isEmpty() )
+ {
+ VSubpathIterator jtr( *( itr.current() ) );
+ for( ; jtr.current(); ++jtr )
+ {
+ jtr.current()->draw( painter );
+ }
+ }
+ }
+
+ painter->setRasterOp( TQt::CopyROP );
+ painter->setPen( TQt::NoPen );
+ painter->setBrush( *fill() );
+ painter->fillPath();
+
+ // draw stroke:
+ painter->setPen( *stroke() );
+ painter->setBrush( TQt::NoBrush );
+ painter->strokePath();
+ }
+
+ painter->restore();
+}
+
+const KoPoint&
+VPath::currentPoint() const
+{
+ return m_paths.getLast()->currentPoint();
+}
+
+bool
+VPath::moveTo( const KoPoint& p )
+{
+ // Append a new subpath if current subpath is not empty.
+ if( !m_paths.getLast()->isEmpty() )
+ {
+ VSubpath* path = new VSubpath( this );
+ m_paths.append( path );
+ }
+
+ return m_paths.getLast()->moveTo( p );
+}
+
+bool
+VPath::lineTo( const KoPoint& p )
+{
+ return m_paths.getLast()->lineTo( p );
+}
+
+bool
+VPath::curveTo(
+ const KoPoint& p1, const KoPoint& p2, const KoPoint& p3 )
+{
+ return m_paths.getLast()->curveTo( p1, p2, p3 );
+}
+
+bool
+VPath::curve1To( const KoPoint& p2, const KoPoint& p3 )
+{
+ return m_paths.getLast()->curve1To( p2, p3 );
+}
+
+bool
+VPath::curve2To( const KoPoint& p1, const KoPoint& p3 )
+{
+ return m_paths.getLast()->curve2To( p1, p3 );
+}
+
+bool
+VPath::arcTo( const KoPoint& p1, const KoPoint& p2, const double r )
+{
+ return m_paths.getLast()->arcTo( p1, p2, r );
+}
+
+void
+VPath::close()
+{
+ m_paths.getLast()->close();
+
+ // Append a new subpath.
+ VSubpath* path = new VSubpath( this );
+ path->moveTo( currentPoint() );
+ m_paths.append( path );
+}
+
+bool
+VPath::isClosed() const
+{
+ return m_paths.getLast()->isEmpty() || m_paths.getLast()->isClosed();
+}
+
+void
+VPath::combine( const VPath& composite )
+{
+ VSubpathListIterator itr( composite.m_paths );
+ for( ; itr.current(); ++itr )
+ {
+ combinePath( *( itr.current() ) );
+ }
+}
+
+void
+VPath::combinePath( const VSubpath& path )
+{
+ VSubpath* p = path.clone();
+ p->setParent( this );
+
+ // TODO: do complex inside tests instead:
+ // Make new segments clock wise oriented:
+
+ m_paths.append( p );
+ m_fillRule = fillMode();
+}
+
+bool
+VPath::pointIsInside( const KoPoint& p ) const
+{
+ // Check if point is inside boundingbox.
+ if( !boundingBox().contains( p ) )
+ return false;
+
+
+ VSubpathListIterator itr( m_paths );
+
+ for( itr.toFirst(); itr.current(); ++itr )
+ {
+ if( itr.current()->pointIsInside( p ) )
+ return true;
+ }
+
+ return false;
+}
+
+bool
+VPath::intersects( const VSegment& segment ) const
+{
+ // Check if boundingboxes intersect.
+ if( !boundingBox().intersects( segment.boundingBox() ) )
+ return false;
+
+
+ VSubpathListIterator itr( m_paths );
+
+ for( itr.toFirst(); itr.current(); ++itr )
+ {
+ if( itr.current()->intersects( segment ) )
+ return true;
+ }
+
+ return false;
+}
+
+
+VFillRule
+VPath::fillMode() const
+{
+ return ( m_paths.count() > 1 ) ? evenOdd : winding;
+}
+
+const KoRect&
+VPath::boundingBox() const
+{
+ if( m_boundingBoxIsInvalid )
+ {
+ VSubpathListIterator itr( m_paths );
+ itr.toFirst();
+
+ m_boundingBox = itr.current() ? itr.current()->boundingBox() : KoRect();
+
+ for( ++itr; itr.current(); ++itr )
+ m_boundingBox |= itr.current()->boundingBox();
+
+ if( !m_boundingBox.isNull() )
+ {
+ // take line width into account:
+ m_boundingBox.setCoords(
+ m_boundingBox.left() - 0.5 * stroke()->lineWidth(),
+ m_boundingBox.top() - 0.5 * stroke()->lineWidth(),
+ m_boundingBox.right() + 0.5 * stroke()->lineWidth(),
+ m_boundingBox.bottom() + 0.5 * stroke()->lineWidth() );
+ }
+ m_boundingBoxIsInvalid = false;
+ }
+
+ return m_boundingBox;
+}
+
+VPath*
+VPath::clone() const
+{
+ return new VPath( *this );
+}
+
+void
+VPath::save( TQDomElement& element ) const
+{
+ if( state() != deleted )
+ {
+ TQDomElement me = element.ownerDocument().createElement( "PATH" );
+ element.appendChild( me );
+
+ VObject::save( me );
+
+ TQString d;
+ saveSvgPath( d );
+ me.setAttribute( "d", d );
+
+ //writeTransform( me );
+
+ // save fill rule if necessary:
+ if( !( m_fillRule == evenOdd ) )
+ me.setAttribute( "fillRule", m_fillRule );
+ }
+}
+
+void
+VPath::saveOasis( KoStore *store, KoXmlWriter *docWriter, KoGenStyles &mainStyles, int &index ) const
+{
+ if( state() != deleted )
+ {
+ docWriter->startElement( "draw:path" );
+
+ TQString d;
+ saveSvgPath( d );
+ docWriter->addAttribute( "svg:d", d );
+
+ double x = boundingBox().x();
+ double y = boundingBox().y();
+ double w = boundingBox().width();
+ double h = boundingBox().height();
+
+ docWriter->addAttribute( "svg:viewBox", TQString( "%1 %2 %3 %4" ).arg( x ).arg( y ).arg( w ).arg( h ) );
+ docWriter->addAttributePt( "svg:x", x );
+ docWriter->addAttributePt( "svg:y", y );
+ docWriter->addAttributePt( "svg:width", w );
+ docWriter->addAttributePt( "svg:height", h );
+
+ VObject::saveOasis( store, docWriter, mainStyles, index );
+
+ TQWMatrix tmpMat;
+ tmpMat.scale( 1, -1 );
+ tmpMat.translate( 0, -document()->height() );
+
+ TQString transform = buildOasisTransform( tmpMat );
+ if( !transform.isEmpty() )
+ docWriter->addAttribute( "draw:transform", transform );
+
+ docWriter->endElement();
+ }
+}
+
+void
+VPath::saveOasisFill( KoGenStyles &mainStyles, KoGenStyle &stylesobjectauto ) const
+{
+ if( m_fill )
+ {
+ TQWMatrix mat;
+ mat.scale( 1, -1 );
+ mat.translate( 0, -document()->height() );
+
+ // mirror fill before saving
+ VFill fill( *m_fill );
+ fill.transform( mat );
+ fill.saveOasis( mainStyles, stylesobjectauto );
+ // save fill rule if necessary:
+ if( !( m_fillRule == evenOdd ) )
+ stylesobjectauto.addProperty( "svg:fill-rule", "winding" );
+ }
+}
+
+void
+VPath::transformByViewbox( const TQDomElement &element, TQString viewbox )
+{
+ if( ! viewbox.isEmpty() )
+ {
+ // allow for viewbox def with ',' or whitespace
+ TQStringList points = TQStringList::split( ' ', viewbox.replace( ',', ' ' ).simplifyWhiteSpace() );
+
+ double w = KoUnit::parseValue( element.attributeNS( KoXmlNS::svg, "width", TQString() ) );
+ double h = KoUnit::parseValue( element.attributeNS( KoXmlNS::svg, "height", TQString() ) );
+ double x = KoUnit::parseValue( element.attributeNS( KoXmlNS::svg, "x", TQString() ) );
+ double y = KoUnit::parseValue( element.attributeNS( KoXmlNS::svg, "y", TQString() ) );
+
+ TQWMatrix mat;
+ mat.translate( x-KoUnit::parseValue( points[0] ), y-KoUnit::parseValue( points[1] ) );
+ mat.scale( w / KoUnit::parseValue( points[2] ) , h / KoUnit::parseValue( points[3] ) );
+ VTransformCmd cmd( 0L, mat );
+ cmd.visitVPath( *this );
+ }
+}
+
+bool
+VPath::loadOasis( const TQDomElement &element, KoOasisLoadingContext &context )
+{
+ setState( normal );
+
+ TQString viewbox;
+
+ if( element.localName() == "path" )
+ {
+ TQString data = element.attributeNS( KoXmlNS::svg, "d", TQString() );
+ if( data.length() > 0 )
+ {
+ loadSvgPath( data );
+ }
+
+ m_fillRule = element.attributeNS( KoXmlNS::svg, "fill-rule", TQString() ) == "winding" ? winding : evenOdd;
+
+ viewbox = element.attributeNS( KoXmlNS::svg, "viewBox", TQString() );
+ }
+ else if( element.localName() == "custom-shape" )
+ {
+ TQDomNodeList list = element.childNodes();
+ for( uint i = 0; i < list.count(); ++i )
+ {
+ if( list.item( i ).isElement() )
+ {
+ TQDomElement e = list.item( i ).toElement();
+ if( e.namespaceURI() != KoXmlNS::draw )
+ continue;
+
+ if( e.localName() == "enhanced-geometry" )
+ {
+ TQString data = e.attributeNS( KoXmlNS::draw, "enhanced-path", TQString() );
+ if( ! data.isEmpty() )
+ loadSvgPath( data );
+
+ viewbox = e.attributeNS( KoXmlNS::svg, "viewBox", TQString() );
+ }
+ }
+ }
+ }
+
+ transformByViewbox( element, viewbox );
+
+ TQString trafo = element.attributeNS( KoXmlNS::draw, "transform", TQString() );
+ if( !trafo.isEmpty() )
+ transformOasis( trafo );
+
+ return VObject::loadOasis( element, context );
+}
+
+void
+VPath::load( const TQDomElement& element )
+{
+ setState( normal );
+
+ VObject::load( element );
+
+ TQString data = element.attribute( "d" );
+ if( data.length() > 0 )
+ {
+ loadSvgPath( data );
+ }
+ m_fillRule = element.attribute( "fillRule" ) == 0 ? evenOdd : winding;
+ TQDomNodeList list = element.childNodes();
+ for( uint i = 0; i < list.count(); ++i )
+ {
+ if( list.item( i ).isElement() )
+ {
+ TQDomElement child = list.item( i ).toElement();
+
+ if( child.tagName() == "PATH" )
+ {
+ VSubpath path( this );
+ path.load( child );
+
+ combinePath( path );
+ }
+ else
+ {
+ VObject::load( child );
+ }
+ }
+ }
+
+ TQString trafo = element.attribute( "transform" );
+ if( !trafo.isEmpty() )
+ transform( trafo );
+}
+
+void
+VPath::loadSvgPath( const TQString &d )
+{
+ //TQTime s;s.start();
+ parseSVG( d, true );
+ //kdDebug(38000) << "Parsing time : " << s.elapsed() << endl;
+}
+
+void
+VPath::saveSvgPath( TQString &d ) const
+{
+ // save paths to svg:
+ VSubpathListIterator itr( m_paths );
+ for( itr.toFirst(); itr.current(); ++itr )
+ {
+ if( !itr.current()->isEmpty() )
+ itr.current()->saveSvgPath( d );
+ }
+}
+
+void
+VPath::svgMoveTo( double x1, double y1, bool )
+{
+ moveTo( KoPoint( x1, y1 ) );
+}
+
+void
+VPath::svgLineTo( double x1, double y1, bool )
+{
+ lineTo( KoPoint( x1, y1 ) );
+}
+
+void
+VPath::svgCurveToCubic( double x1, double y1, double x2, double y2, double x, double y, bool )
+{
+ curveTo( KoPoint( x1, y1 ), KoPoint( x2, y2 ), KoPoint( x, y ) );
+}
+
+void
+VPath::svgClosePath()
+{
+ close();
+}
+
+void
+VPath::accept( VVisitor& visitor )
+{
+ visitor.visitVPath( *this );
+}
+
+void
+VPath::transform( const TQString &transform )
+{
+ VTransformCmd cmd( 0L, parseTransform( transform ) );
+ cmd.visitVPath( *this );
+}
+
+void
+VPath::transformOasis( const TQString &transform )
+{
+ VTransformCmd cmd( 0L, parseOasisTransform( transform ) );
+ cmd.visitVPath( *this );
+}
+
+TQWMatrix
+VPath::parseTransform( const TQString &transform )
+{
+ TQWMatrix result;
+
+ // Split string for handling 1 transform statement at a time
+ TQStringList subtransforms = TQStringList::split(')', transform);
+ TQStringList::ConstIterator it = subtransforms.begin();
+ TQStringList::ConstIterator end = subtransforms.end();
+ for(; it != end; ++it)
+ {
+ TQStringList subtransform = TQStringList::split('(', (*it));
+
+ subtransform[0] = subtransform[0].stripWhiteSpace().lower();
+ subtransform[1] = subtransform[1].simplifyWhiteSpace();
+ TQRegExp reg("[,( ]");
+ TQStringList params = TQStringList::split(reg, subtransform[1]);
+
+ if(subtransform[0].startsWith(";") || subtransform[0].startsWith(","))
+ subtransform[0] = subtransform[0].right(subtransform[0].length() - 1);
+
+ if(subtransform[0] == "rotate")
+ {
+ if(params.count() == 3)
+ {
+ double x = params[1].toDouble();
+ double y = params[2].toDouble();
+
+ result.translate(x, y);
+ result.rotate(params[0].toDouble());
+ result.translate(-x, -y);
+ }
+ else
+ result.rotate(params[0].toDouble());
+ }
+ else if(subtransform[0] == "translate")
+ {
+ if(params.count() == 2)
+ result.translate(params[0].toDouble(), params[1].toDouble());
+ else // Spec : if only one param given, assume 2nd param to be 0
+ result.translate(params[0].toDouble() , 0);
+ }
+ else if(subtransform[0] == "scale")
+ {
+ if(params.count() == 2)
+ result.scale(params[0].toDouble(), params[1].toDouble());
+ else // Spec : if only one param given, assume uniform scaling
+ result.scale(params[0].toDouble(), params[0].toDouble());
+ }
+ else if(subtransform[0] == "skewx")
+ result.shear(tan(params[0].toDouble() * VGlobal::pi_180), 0.0F);
+ else if(subtransform[0] == "skewy")
+ result.shear(tan(params[0].toDouble() * VGlobal::pi_180), 0.0F);
+ else if(subtransform[0] == "skewy")
+ result.shear(0.0F, tan(params[0].toDouble() * VGlobal::pi_180));
+ else if(subtransform[0] == "matrix")
+ {
+ if(params.count() >= 6)
+ result.setMatrix(params[0].toDouble(), params[1].toDouble(), params[2].toDouble(), params[3].toDouble(), params[4].toDouble(), params[5].toDouble());
+ }
+ }
+
+ return result;
+}
+
+TQWMatrix
+VPath::parseOasisTransform( const TQString &transform )
+{
+ TQWMatrix result;
+
+ // Split string for handling 1 transform statement at a time
+ TQStringList subtransforms = TQStringList::split(')', transform);
+ TQStringList::ConstIterator it = subtransforms.begin();
+ TQStringList::ConstIterator end = subtransforms.end();
+ for(; it != end; ++it)
+ {
+ TQStringList subtransform = TQStringList::split('(', (*it));
+
+ subtransform[0] = subtransform[0].stripWhiteSpace().lower();
+ subtransform[1] = subtransform[1].simplifyWhiteSpace();
+ TQRegExp reg("[,( ]");
+ TQStringList params = TQStringList::split(reg, subtransform[1]);
+
+ if(subtransform[0].startsWith(";") || subtransform[0].startsWith(","))
+ subtransform[0] = subtransform[0].right(subtransform[0].length() - 1);
+
+ if(subtransform[0] == "rotate")
+ {
+ // TODO find out what oo2 really does when rotating, it seems severly broken
+ if(params.count() == 3)
+ {
+ double x = KoUnit::parseValue( params[1] );
+ double y = KoUnit::parseValue( params[2] );
+
+ result.translate(x, y);
+ // oo2 rotates by radians
+ result.rotate( params[0].toDouble()*VGlobal::one_pi_180 );
+ result.translate(-x, -y);
+ }
+ else
+ {
+ // oo2 rotates by radians
+ result.rotate( params[0].toDouble()*VGlobal::one_pi_180 );
+ }
+ }
+ else if(subtransform[0] == "translate")
+ {
+ if(params.count() == 2)
+ {
+ double x = KoUnit::parseValue( params[0] );
+ double y = KoUnit::parseValue( params[1] );
+ result.translate(x, y);
+ }
+ else // Spec : if only one param given, assume 2nd param to be 0
+ result.translate( KoUnit::parseValue( params[0] ) , 0);
+ }
+ else if(subtransform[0] == "scale")
+ {
+ if(params.count() == 2)
+ result.scale(params[0].toDouble(), params[1].toDouble());
+ else // Spec : if only one param given, assume uniform scaling
+ result.scale(params[0].toDouble(), params[0].toDouble());
+ }
+ else if(subtransform[0] == "skewx")
+ result.shear(tan(params[0].toDouble()), 0.0F);
+ else if(subtransform[0] == "skewy")
+ result.shear(tan(params[0].toDouble()), 0.0F);
+ else if(subtransform[0] == "skewy")
+ result.shear(0.0F, tan(params[0].toDouble()));
+ else if(subtransform[0] == "matrix")
+ {
+ if(params.count() >= 6)
+ result.setMatrix(params[0].toDouble(), params[1].toDouble(), params[2].toDouble(), params[3].toDouble(), KoUnit::parseValue( params[4] ), KoUnit::parseValue( params[5] ) );
+ }
+ }
+
+ return result;
+}
+
+TQString
+VPath::buildSvgTransform() const
+{
+ return buildSvgTransform( m_matrix );
+}
+
+TQString
+VPath::buildSvgTransform( const TQWMatrix &mat ) const
+{
+ TQString transform;
+ if( !mat.isIdentity() )
+ {
+ transform = TQString( "matrix(%1, %2, %3, %4, %5, %6)" ).arg( mat.m11() )
+ .arg( mat.m12() )
+ .arg( mat.m21() )
+ .arg( mat.m22() )
+ .arg( mat.dx() )
+ .arg( mat.dy() );
+ }
+ return transform;
+}
+
+TQString
+VPath::buildOasisTransform() const
+{
+ return buildSvgTransform( m_matrix );
+}
+
+TQString
+VPath::buildOasisTransform( const TQWMatrix &mat ) const
+{
+ TQString transform;
+ if( !mat.isIdentity() )
+ {
+ transform = TQString( "matrix(%1, %2, %3, %4, %5pt, %6pt)" ).arg( mat.m11() )
+ .arg( mat.m12() )
+ .arg( mat.m21() )
+ .arg( mat.m22() )
+ .arg( mat.dx() )
+ .arg( mat.dy() );
+ }
+ return transform;
+}
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