/**************************************************************
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/



#ifndef SVGWRITER_HXX
#define SVGWRITER_HXX

#include <cppuhelper/weak.hxx>
#include <rtl/ustring.hxx>
#include <tools/debug.hxx>
#include <tools/stream.hxx>
#include <tools/string.hxx>
#include <tools/urlobj.hxx>
#include <tools/stack.hxx>
#ifndef _SALBTYPE_HXX
#include <vcl/salbtype.hxx>
#endif
#ifndef _GDIMTF_HXX
#include <vcl/gdimtf.hxx>
#endif
#ifndef _METAACT_HXX
#include <vcl/metaact.hxx>
#endif
#ifndef _METAACT_HXX
#include <vcl/metric.hxx>
#endif
#ifndef _VIRDEV_HXX
#include <vcl/virdev.hxx>
#endif
#ifndef _CVTGRF_HXX
#include <vcl/cvtgrf.hxx>
#endif
#include <vcl/graphictools.hxx>
#include <xmloff/xmlexp.hxx>
#include <xmloff/nmspmap.hxx>

#include <com/sun/star/uno/Reference.h>
#include <com/sun/star/uno/RuntimeException.hpp>
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#include <com/sun/star/lang/XComponent.hpp>
#include <com/sun/star/registry/XRegistryKey.hpp>
#include <com/sun/star/lang/XComponent.hpp>
#include <com/sun/star/io/XInputStream.hpp>
#include <com/sun/star/io/XOutputStream.hpp>
#include <com/sun/star/xml/sax/XDocumentHandler.hpp>
#include <com/sun/star/xml/sax/XExtendedDocumentHandler.hpp>
#include <com/sun/star/i18n/CharacterIteratorMode.hpp>
#include <com/sun/star/i18n/XBreakIterator.hpp>
#include <com/sun/star/svg/XSVGWriter.hpp>
#include <com/sun/star/lang/XInitialization.hpp>

// -----------------------------------------------------------------------------

#define _SVG_WRITE_EXTENTS      1
#undef _SVG_WRITE_TEXT_DESC
#undef _SVG_USE_CONFIG

// -----------------------------------------------------------------------------

#define NMSP_CPPU				cppu
#define NMSP_UNO				com::sun::star::uno
#define NMSP_LANG				com::sun::star::lang
#define NMSP_SAX				com::sun::star::xml::sax
#define NMSP_SVG				com::sun::star::svg
#define NMSP_REGISTRY			com::sun::star::registry


#define REF( _def_Obj )			NMSP_UNO::Reference< _def_Obj >
#define SEQ( _def_Obj )			NMSP_UNO::Sequence< _def_Obj > 
#define B2UCONST( _def_pChar )	(::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM(_def_pChar )))
#define SVG_DTD_STRING			B2UCONST( "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">" )
#define SVG_TINY_DTD_STRING     B2UCONST( "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG Tiny 1.1//EN\" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11-tiny.dtd\">" )

#define SVGWRITER_WRITE_NONE	    0x00000000
#define SVGWRITER_WRITE_FILL        0x00000001
#define SVGWRITER_WRITE_TEXT	    0x00000002
#define SVGWRITER_NO_SHAPE_COMMENTS 0x01000000

// ----------------------
// - SVGAttributeWriter -
// ----------------------

class SVGActionWriter;
class SVGExport;
class SVGFontExport;

class SVGAttributeWriter
{
private:

	Font					maCurFont;
	Color					maCurLineColor;
	Color					maCurFillColor;
	SVGExport&				mrExport;
    SVGFontExport&          mrFontExport;
	SvXMLElementExport*		mpElemFont;
	SvXMLElementExport*		mpElemPaint;
							
                            SVGAttributeWriter();
                     
    void                    ImplGetColorStr( const Color& rColor, ::rtl::OUString& rColorStr );
    double                  ImplRound( double fVal, sal_Int32 nDecs = 3 );
                   
public:

							SVGAttributeWriter( SVGExport& rExport, SVGFontExport& rFontExport );
	virtual					~SVGAttributeWriter();

    void                    AddColorAttr( const char* pColorAttrName, const char* pColorOpacityAttrName, const Color& rColor );
    void                    AddGradientDef( const Rectangle& rObjRect,const Gradient& rGradient, ::rtl::OUString& rGradientId );
    void                    AddPaintAttr( const Color& rLineColor, const Color& rFillColor, 
                                          const Rectangle* pObjBoundRect = NULL, const Gradient* pFillGradient = NULL );
    
    void                    SetFontAttr( const Font& rFont );
};

// ----------------------
// - SVGShapeDescriptor -
// ----------------------

struct SVGShapeDescriptor
{
    PolyPolygon                         maShapePolyPoly;
    Color                               maShapeFillColor;
    Color                               maShapeLineColor;
    sal_Int32                           mnStrokeWidth;
    SvtGraphicStroke::DashArray         maDashArray;
    ::std::auto_ptr< Gradient >         mapShapeGradient;
    ::rtl::OUString                     maId;

    // added support for LineJoin and LineCap
    basegfx::B2DLineJoin                maLineJoin;
    com::sun::star::drawing::LineCap    maLineCap;

    // -------------------------------------------------------------------------

    SVGShapeDescriptor() :
        maShapeFillColor( Color( COL_TRANSPARENT ) ),
        maShapeLineColor( Color( COL_TRANSPARENT ) ),
        mnStrokeWidth( 0 ),
        maLineJoin(basegfx::B2DLINEJOIN_MITER), // miter is Svg 'stroke-linejoin' default
        maLineCap(com::sun::star::drawing::LineCap_BUTT) // butt is Svg 'stroke-linecap' default
    {
    }
};

// -------------------
// - SVGActionWriter -
// -------------------

class SVGAttributeWriter;
class SVGExport;
class GDIMetaFile;

class SVGActionWriter
{
private:

	Stack					                maContextStack;
    ::std::auto_ptr< SVGShapeDescriptor >   mapCurShape;
	SVGExport&								mrExport;
    SVGFontExport&                          mrFontExport;
	SVGAttributeWriter*                     mpContext;
	VirtualDevice*			                mpVDev;
	MapMode					                maTargetMapMode;
    sal_uInt32                              mnInnerMtfCount;
	sal_Bool				                mbDestroyVDev;
	sal_Bool				                mbPaintAttrChanged;
	sal_Bool				                mbFontAttrChanged;
	sal_Bool				                mbClipAttrChanged;

	SVGAttributeWriter*		ImplAcquireContext() { maContextStack.Push( mpContext = new SVGAttributeWriter( mrExport, mrFontExport ) ); return mpContext; }
	void					ImplReleaseContext() { delete (SVGAttributeWriter*)	maContextStack.Pop(); mpContext = (SVGAttributeWriter*) maContextStack.Top(); }

	long					ImplMap( sal_Int32 nVal ) const; 
	Point&					ImplMap( const Point& rPt, Point& rDstPt ) const;
	Size&					ImplMap( const Size& rSz, Size& rDstSz ) const;
	Rectangle&              ImplMap( const Rectangle& rRect, Rectangle& rDstRect ) const;
    Polygon&                ImplMap( const Polygon& rPoly, Polygon& rDstPoly ) const;
    PolyPolygon&            ImplMap( const PolyPolygon& rPolyPoly, PolyPolygon& rDstPolyPoly ) const;

	void					ImplWriteLine( const Point& rPt1, const Point& rPt2, const Color* pLineColor = NULL, 
                                           sal_Bool bApplyMapping = sal_True );
	void					ImplWriteRect( const Rectangle& rRect, long nRadX = 0, long nRadY = 0, 
                                           sal_Bool bApplyMapping = sal_True );
	void					ImplWriteEllipse( const Point& rCenter, long nRadX, long nRadY, 
                                              sal_Bool bApplyMapping = sal_True );
	void					ImplWritePolyPolygon( const PolyPolygon& rPolyPoly, sal_Bool bLineOnly, 
                                                  sal_Bool bApplyMapping = sal_True );
    void                    ImplWriteShape( const SVGShapeDescriptor& rShape, sal_Bool bApplyMapping = sal_True );
    void					ImplWriteGradientEx( const PolyPolygon& rPolyPoly, const Gradient& rGradient, sal_uInt32 nWriteFlags, 
                                                 sal_Bool bApplyMapping = sal_True );
	void					ImplWriteText( const Point& rPos, const String& rText, const sal_Int32* pDXArray, long nWidth, 
                                           sal_Bool bApplyMapping = sal_True );
	void					ImplWriteBmp( const BitmapEx& rBmpEx, const Point& rPt, const Size& rSz, const Point& rSrcPt, const Size& rSrcSz, 
                                          sal_Bool bApplyMapping = sal_True );

	void					ImplCheckFontAttributes();
	void					ImplCheckPaintAttributes();
	
	void					ImplWriteActions( const GDIMetaFile& rMtf, sal_uInt32 nWriteFlags, const ::rtl::OUString* pElementId );

public:

	static ::rtl::OUString	GetPathString( const PolyPolygon& rPolyPoly, sal_Bool bLine );

public:

							SVGActionWriter( SVGExport& rExport, SVGFontExport& rFontExport );
	virtual					~SVGActionWriter();

	void					WriteMetaFile( const Point& rPos100thmm, 
                                           const Size& rSize100thmm,
										   const GDIMetaFile& rMtf, 
										   sal_uInt32 nWriteFlags,
                                           const ::rtl::OUString* pElementId = NULL );
};

class SVGWriter : public NMSP_CPPU::OWeakObject, NMSP_SVG::XSVGWriter, com::sun::star::lang::XInitialization
{	
private:

	REF( NMSP_LANG::XMultiServiceFactory )									mxFact;
	com::sun::star::uno::Sequence< com::sun::star::beans::PropertyValue >	maFilterData;

											SVGWriter();
											
public:										
											
											SVGWriter( const REF( NMSP_LANG::XMultiServiceFactory )& rxMgr );
	virtual 								~SVGWriter();
											
	// XInterface							
	virtual NMSP_UNO::Any SAL_CALL			queryInterface( const NMSP_UNO::Type & rType ) throw( NMSP_UNO::RuntimeException );
    virtual void SAL_CALL					acquire() throw();
    virtual void SAL_CALL					release() throw();
											
	// XSVGWriter							
	virtual void SAL_CALL					write( const REF( NMSP_SAX::XDocumentHandler )& rxDocHandler,
												   const SEQ( sal_Int8 )& rMtfSeq ) throw( NMSP_UNO::RuntimeException );

    // ::com::sun::star::lang::XInitialization
	void SAL_CALL initialize( const ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Any >& aArguments ) throw (::com::sun::star::uno::Exception, ::com::sun::star::uno::RuntimeException);

};

::rtl::OUString SVGWriter_getImplementationName ()
	throw ( ::com::sun::star::uno::RuntimeException );

// -----------------------------------------------------------------------------

sal_Bool SAL_CALL SVGWriter_supportsService( const ::rtl::OUString& ServiceName ) 
	throw ( ::com::sun::star::uno::RuntimeException );

// -----------------------------------------------------------------------------

::com::sun::star::uno::Sequence< ::rtl::OUString > SAL_CALL SVGWriter_getSupportedServiceNames(  ) 
	throw ( ::com::sun::star::uno::RuntimeException );

// -----------------------------------------------------------------------------

::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >
	SAL_CALL SVGWriter_createInstance( const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory > & rSMgr)
		throw ( ::com::sun::star::uno::Exception );

#endif