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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* 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 .
*/
#ifndef INCLUDED_FILTER_SOURCE_SVG_SVGWRITER_HXX
#define INCLUDED_FILTER_SOURCE_SVG_SVGWRITER_HXX
#include <cppuhelper/implbase.hxx>
#include <rtl/ustring.hxx>
#include <osl/diagnose.h>
#include <vcl/gdimtf.hxx>
#include <vcl/metaact.hxx>
#include <vcl/virdev.hxx>
#include <vcl/graphictools.hxx>
#include <xmloff/xmlexp.hxx>
#include <com/sun/star/uno/Reference.h>
#include <com/sun/star/container/XEnumeration.hpp>
#include <com/sun/star/xml/sax/XDocumentHandler.hpp>
#include <com/sun/star/drawing/XShape.hpp>
#include <com/sun/star/text/XText.hpp>
#include <com/sun/star/text/XTextContent.hpp>
#include <com/sun/star/text/XTextRange.hpp>
#include <com/sun/star/svg/XSVGWriter.hpp>
#include <memory>
#include <stack>
#include <unordered_map>
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::container;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::text;
using namespace ::com::sun::star::style;
using namespace ::com::sun::star::svg;
using namespace ::com::sun::star::xml::sax;
#define SVG_DTD_STRING "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">"
#define SVGWRITER_WRITE_FILL 0x00000001
#define SVGWRITER_WRITE_TEXT 0x00000002
#define SVGWRITER_NO_SHAPE_COMMENTS 0x01000000
struct SVGState
{
vcl::Font aFont;
// Color aLineColor;
// Color aFillColor;
// basegfx::B2DLineJoin aLineJoin;
// com::sun::star::drawing::LineCap aLineCap;
sal_Int32 nRegionClipPathId;
SVGState()
: aFont()
, nRegionClipPathId( 0 )
{}
};
// - PartialState -
struct PartialState
{
PushFlags meFlags;
::std::unique_ptr<vcl::Font> mupFont;
sal_Int32 mnRegionClipPathId;
const vcl::Font& getFont( const vcl::Font& rDefaultFont ) const
{ return mupFont ? *mupFont : rDefaultFont; }
void setFont( const vcl::Font& rFont )
{ mupFont.reset( new vcl::Font(rFont) ); }
PartialState()
: meFlags( PushFlags::NONE )
, mupFont()
, mnRegionClipPathId( 0 )
{}
PartialState(PartialState&& aPartialState) noexcept
: meFlags( aPartialState.meFlags )
, mupFont( std::move( aPartialState.mupFont ) )
, mnRegionClipPathId( aPartialState.mnRegionClipPathId )
{
aPartialState.meFlags = PushFlags::NONE;
aPartialState.mnRegionClipPathId = 0;
}
};
// - SVGContextHandler -
class SVGContextHandler
{
private:
::std::stack<PartialState> maStateStack;
SVGState maCurrentState;
public:
PushFlags getPushFlags() const;
SVGState& getCurrentState();
void pushState( PushFlags eFlags );
void popState();
};
// - SVGAttributeWriter -
class SVGActionWriter;
class SVGExport;
class SVGFontExport;
class SVGAttributeWriter final
{
private:
SVGExport& mrExport;
SVGFontExport& mrFontExport;
SVGState& mrCurrentState;
std::unique_ptr<SvXMLElementExport> mpElemFont;
static double ImplRound( double fVal );
public:
SVGAttributeWriter( SVGExport& rExport, SVGFontExport& rFontExport, SVGState& rCurState );
~SVGAttributeWriter();
void AddColorAttr( const char* pColorAttrName, const char* pColorOpacityAttrName, const Color& rColor );
void AddGradientDef( const tools::Rectangle& rObjRect,const Gradient& rGradient, OUString& rGradientId );
void AddPaintAttr( const Color& rLineColor, const Color& rFillColor,
const tools::Rectangle* pObjBoundRect = nullptr, const Gradient* pFillGradient = nullptr );
void SetFontAttr( const vcl::Font& rFont );
void startFontSettings();
void endFontSettings();
void setFontFamily();
static void ImplGetColorStr( const Color& rColor, OUString& rColorStr );
};
struct SVGShapeDescriptor
{
tools::PolyPolygon maShapePolyPoly;
Color maShapeFillColor;
Color maShapeLineColor;
sal_Int32 mnStrokeWidth;
SvtGraphicStroke::DashArray maDashArray;
::std::unique_ptr< Gradient > mapShapeGradient;
OUString maId;
basegfx::B2DLineJoin maLineJoin;
css::drawing::LineCap maLineCap;
SVGShapeDescriptor() :
maShapeFillColor( COL_TRANSPARENT ),
maShapeLineColor( COL_TRANSPARENT ),
mnStrokeWidth( 0 ),
maLineJoin(basegfx::B2DLineJoin::Miter), // miter is Svg 'stroke-linejoin' default
maLineCap(css::drawing::LineCap_BUTT) // butt is Svg 'stroke-linecap' default
{
}
};
class SVGAttributeWriter;
class SVGExport;
class GDIMetaFile;
struct BulletListItemInfo
{
tools::Long nFontSize;
Color aColor;
Point aPos;
sal_Unicode cBulletChar;
};
class SVGTextWriter final
{
private:
SVGExport& mrExport;
SVGAttributeWriter& mrAttributeWriter;
SVGActionWriter& mrActionWriter;
VclPtr<VirtualDevice> mpVDev;
bool mbIsTextShapeStarted;
Reference<XText> mrTextShape;
OUString msShapeId;
Reference<XEnumeration> mrParagraphEnumeration;
Reference<XTextContent> mrCurrentTextParagraph;
Reference<XEnumeration> mrTextPortionEnumeration;
Reference<XTextRange> mrCurrentTextPortion;
const GDIMetaFile* mpTextEmbeddedBitmapMtf;
MapMode* mpTargetMapMode;
std::unique_ptr<SvXMLElementExport> mpTextShapeElem;
std::unique_ptr<SvXMLElementExport> mpTextParagraphElem;
std::unique_ptr<SvXMLElementExport> mpTextPositionElem;
OUString maTextOpacity;
sal_Int32 mnLeftTextPortionLength;
Point maTextPos;
tools::Long mnTextWidth;
bool mbPositioningNeeded;
bool mbIsNewListItem;
sal_Int16 meNumberingType;
sal_Unicode mcBulletChar;
std::unordered_map< OUString, BulletListItemInfo > maBulletListItemMap;
bool mbIsListLevelStyleImage;
bool mbLineBreak;
bool mbIsURLField;
OUString msUrl;
OUString msHyperlinkIdList;
OUString msPageCount;
bool mbIsPlaceholderShape;
static const bool mbIWS = false;
vcl::Font maCurrentFont;
vcl::Font maParentFont;
public:
explicit SVGTextWriter(SVGExport& rExport, SVGAttributeWriter& rAttributeWriter,
SVGActionWriter& mrActionWriter);
~SVGTextWriter();
sal_Int32 setTextPosition(const GDIMetaFile& rMtf, sal_uLong& nCurAction,
sal_uInt32 nWriteFlags);
void setTextProperties( const GDIMetaFile& rMtf, sal_uLong nCurAction );
void addFontAttributes( bool bIsTextContainer );
void createParagraphEnumeration();
bool nextParagraph();
bool nextTextPortion();
bool isTextShapeStarted() const { return mbIsTextShapeStarted; }
void startTextShape();
void endTextShape();
void startTextParagraph();
void endTextParagraph();
void startTextPosition( bool bExportX = true, bool bExportY = true);
void endTextPosition();
bool hasTextOpacity() const;
void implExportHyperlinkIds();
void implWriteBulletChars();
template< typename MetaBitmapActionType >
void writeBitmapPlaceholder( const MetaBitmapActionType* pAction );
void implWriteEmbeddedBitmaps();
void writeTextPortion( const Point& rPos, const OUString& rText );
void implWriteTextPortion( const Point& rPos, const OUString& rText,
Color aTextColor );
void setVirtualDevice( VirtualDevice* pVDev, MapMode& rTargetMapMode )
{
if( !pVDev )
OSL_FAIL( "SVGTextWriter::setVirtualDevice: invalid virtual device." );
mpVDev = pVDev;
mpTargetMapMode = &rTargetMapMode;
}
void setTextShape( const Reference<XText>& rxText,
const GDIMetaFile* pTextEmbeddedBitmapMtf )
{
mrTextShape.set( rxText );
mpTextEmbeddedBitmapMtf = pTextEmbeddedBitmapMtf;
}
private:
void implMap( const Size& rSz, Size& rDstSz ) const;
void implMap( const Point& rPt, Point& rDstPt ) const;
void implSetCurrentFont();
void implSetFontFamily();
template< typename SubType >
bool implGetTextPosition( const MetaAction* pAction, Point& raPos, bool& bEmpty );
template< typename SubType >
bool implGetTextPositionFromBitmap( const MetaAction* pAction, Point& raPos, bool& rbEmpty );
void implRegisterInterface( const Reference< XInterface >& rxIf );
const OUString & implGetValidIDFromInterface( const Reference< XInterface >& rxIf );
};
class SVGActionWriter final
{
private:
sal_Int32 mnCurGradientId;
sal_Int32 mnCurMaskId;
sal_Int32 mnCurPatternId;
sal_Int32 mnCurClipPathId;
::std::unique_ptr< SvXMLElementExport > mpCurrentClipRegionElem;
::std::unique_ptr< SVGShapeDescriptor > mapCurShape;
SVGExport& mrExport;
SVGContextHandler maContextHandler;
SVGState& mrCurrentState;
SVGAttributeWriter maAttributeWriter;
SVGTextWriter maTextWriter;
VclPtr<VirtualDevice> mpVDev;
MapMode maTargetMapMode;
bool mbClipAttrChanged;
bool mbIsPlaceholderShape;
tools::Long ImplMap( sal_Int32 nVal ) const;
Point& ImplMap( const Point& rPt, Point& rDstPt ) const;
Size& ImplMap( const Size& rSz, Size& rDstSz ) const;
void ImplMap( const tools::Rectangle& rRect, tools::Rectangle& rDstRect ) const;
tools::Polygon& ImplMap( const tools::Polygon& rPoly, tools::Polygon& rDstPoly ) const;
tools::PolyPolygon& ImplMap( const tools::PolyPolygon& rPolyPoly, tools::PolyPolygon& rDstPolyPoly ) const;
void ImplWriteLine( const Point& rPt1, const Point& rPt2, const Color* pLineColor = nullptr );
void ImplWriteRect( const tools::Rectangle& rRect, tools::Long nRadX = 0, tools::Long nRadY = 0 );
void ImplWriteEllipse( const Point& rCenter, tools::Long nRadX, tools::Long nRadY );
void ImplWritePattern( const tools::PolyPolygon& rPolyPoly, const Hatch* pHatch, const Gradient* pGradient, sal_uInt32 nWriteFlags );
void ImplAddLineAttr( const LineInfo &rAttrs );
void ImplWritePolyPolygon( const tools::PolyPolygon& rPolyPoly, bool bLineOnly,
bool bApplyMapping = true );
void ImplWriteShape( const SVGShapeDescriptor& rShape );
void ImplCreateClipPathDef( const tools::PolyPolygon& rPolyPoly );
void ImplStartClipRegion(sal_Int32 nClipPathId);
void ImplEndClipRegion();
void ImplWriteClipPath( const tools::PolyPolygon& rPolyPoly );
void ImplWriteGradientEx( const tools::PolyPolygon& rPolyPoly, const Gradient& rGradient, sal_uInt32 nWriteFlags);
void ImplWriteGradientLinear( const tools::PolyPolygon& rPolyPoly, const Gradient& rGradient );
void ImplWriteGradientStop( const Color& rColor, double fOffset );
static Color ImplGetColorWithIntensity( const Color& rColor, sal_uInt16 nIntensity );
static Color ImplGetGradientColor( const Color& rStartColor, const Color& rEndColor, double fOffset );
void ImplWriteMask( GDIMetaFile& rMtf, const Point& rDestPt, const Size& rDestSize, const Gradient& rGradient, sal_uInt32 nWriteFlags );
void ImplWriteText( const Point& rPos, const OUString& rText, const tools::Long* pDXArray, tools::Long nWidth );
void ImplWriteText( const Point& rPos, const OUString& rText, const tools::Long* pDXArray, tools::Long nWidth, Color aTextColor );
void ImplWriteBmp( const BitmapEx& rBmpEx, const Point& rPt, const Size& rSz, const Point& rSrcPt, const Size& rSrcSz, const css::uno::Reference<css::drawing::XShape>* pShape);
void ImplWriteActions( const GDIMetaFile& rMtf,
sal_uInt32 nWriteFlags,
const OUString* pElementId,
const Reference< css::drawing::XShape >* pXShape = nullptr,
const GDIMetaFile* pTextEmbeddedBitmapMtf = nullptr );
vcl::Font ImplSetCorrectFontHeight() const;
public:
static OUString GetPathString( const tools::PolyPolygon& rPolyPoly, bool bLine );
static BitmapChecksum GetChecksum( const MetaAction* pAction );
public:
SVGActionWriter( SVGExport& rExport, SVGFontExport& rFontExport );
~SVGActionWriter();
void WriteMetaFile( const Point& rPos100thmm,
const Size& rSize100thmm,
const GDIMetaFile& rMtf,
sal_uInt32 nWriteFlags,
const OUString* pElementId = nullptr,
const Reference< css::drawing::XShape >* pXShape = nullptr,
const GDIMetaFile* pTextEmbeddedBitmapMtf = nullptr );
void StartMask(const Point& rDestPt, const Size& rDestSize, const Gradient& rGradient,
sal_uInt32 nWriteFlags, OUString* pTextStyle = nullptr);
};
class SVGWriter : public cppu::WeakImplHelper< XSVGWriter, XServiceInfo >
{
private:
Reference< XComponentContext > mxContext;
Sequence< css::beans::PropertyValue > maFilterData;
public:
explicit SVGWriter( const Sequence<Any>& args,
const Reference< XComponentContext >& rxCtx );
virtual ~SVGWriter() override;
// XSVGWriter
virtual void SAL_CALL write( const Reference<XDocumentHandler>& rxDocHandler,
const Sequence<sal_Int8>& rMtfSeq ) override;
// XServiceInfo
virtual sal_Bool SAL_CALL supportsService(const OUString& sServiceName) override;
virtual OUString SAL_CALL getImplementationName() override;
virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
};
#endif // INCLUDED_FILTER_SOURCE_SVG_SVGWRITER_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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