svgimport.h

/* This file is part of the KDE project
   Copyright (C) 2002, 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.
*/
 
#ifndef __SVGIMPORT_H__
#define __SVGIMPORT_H__
 
#include <KoFilter.h>
#include <tqdom.h>
#include <tqmap.h>
#include <tqptrstack.h>
#include <core/vdocument.h>
#include <core/vgradient.h>
#include <core/vfill.h>
#include <core/vstroke.h>
#include <core/vfillrule.h>
#include "svggraphiccontext.h"
 
#include <vobject.h>
 
class VGroup;
class VPath;
 
class SvgImport : public KoFilter
{
    TQ_OBJECT
  
 
public:
    SvgImport(KoFilter *parent, const char *name, const TQStringList&);
    virtual ~SvgImport();
 
    virtual KoFilter::ConversionStatus convert(const TQCString& from, const TQCString& to);
 
protected:
    class GradientHelper
    {
    public:
        GradientHelper()
        {
            bbox = true;
        }
        VGradient   gradient;
        bool        bbox;
        TQWMatrix   gradientTransform;
    };
 
    void parseGroup( VGroup *, const TQDomElement & );
    void parseDefs( const TQDomElement & );
    void parseUse( VGroup *, const TQDomElement & );
    void parseStyle( VObject *, const TQDomElement & );
    void parsePA( VObject *, SvgGraphicsContext *, const TQString &, const TQString & );
    void parseGradient( const TQDomElement &, const TQDomElement &referencedBy = TQDomElement() );
    void parseColorStops( VGradient *, const TQDomElement & );
    double parseUnit( const TQString &, bool horiz = false, bool vert = false, KoRect bbox = KoRect() );
    void parseColor( VColor &, const TQString & );
    TQColor parseColor( const TQString & );
    double toPercentage( TQString );
    double fromPercentage( TQString );
    void setupTransform( const TQDomElement & );
    void addGraphicContext();
    TQDomDocument inpdoc;
    TQDomDocument outdoc;
    void convert();
    void createObject( VGroup *grp, const TQDomElement &, VObject::VState state = VObject::normal, const TQDomElement &style = TQDomElement() );
    void createText( VGroup *, const TQDomElement & );
    void parseFont( const TQDomElement & );
    // find object with given id in document
    VObject* findObject( const TQString &name );
    // find object with given id in given group
    VObject* findObject( const TQString &name, VGroup * );
    // find gradient with given id in gradient map
    GradientHelper* findGradient( const TQString &id, const TQString &href = 0 );
 
    // Determine scaling factor from given matrix
    double getScalingFromMatrix( TQWMatrix &matrix );
 
    TQDomElement mergeStyles( const TQDomElement &, const TQDomElement & );
 
private:
    VDocument                       m_document;
    TQPtrStack<SvgGraphicsContext>  m_gc;
    TQMap<TQString, GradientHelper> m_gradients;
    TQMap<TQString, TQDomElement>       m_defs;
    KoRect                          m_outerRect;
};
 
#endif