include/drawinglayer/processor2d/vclmetafileprocessor2d.hxx

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  19
  20 #ifndef INCLUDED_DRAWINGLAYER_PROCESSOR2D_VCLMETAFILEPROCESSOR2D_HXX
  21 #define INCLUDED_DRAWINGLAYER_PROCESSOR2D_VCLMETAFILEPROCESSOR2D_HXX
  22
  23 #include <drawinglayer/drawinglayerdllapi.h>
  24
  25 #include <drawinglayer/processor2d/vclprocessor2d.hxx>
  26 #include <com/sun/star/i18n/XBreakIterator.hpp>
  27 #include <basegfx/polygon/b2dpolypolygon.hxx>
  28
  29 //////////////////////////////////////////////////////////////////////////////
  30 // vcl::PDFExtOutDevData support
  31
  32 #include <vcl/pdfextoutdevdata.hxx>
  33
  34 //////////////////////////////////////////////////////////////////////////////
  35 // predefines
  36
  37 class GDIMetaFile;
  38 class Rectangle;
  39 class Gradient;
  40 class SvtGraphicFill;
  41 class SvtGraphicStroke;
  42
  43 namespace drawinglayer { namespace attribute {
  44     class FillGradientAttribute;
  45     class LineAttribute;
  46     class StrokeAttribute;
  47     class LineStartEndAttribute;
  48 }}
  49
  50 namespace basegfx {
  51     class BColor;
  52 }
  53
  54 //////////////////////////////////////////////////////////////////////////////
  55
  56 namespace drawinglayer
  57 {
  58     namespace processor2d
  59     {
  60         /** VclMetafileProcessor2D class
  61
  62             This processor derived from VclProcessor2D is the base class for rendering
  63             all feeded primitives to a classical VCL-Metafile, including all over the
  64             time grown extra data in comments and PDF exception data creations. Also
  65             printing needs some exception stuff.
  66
  67             All in all it is needed to emulate the old ::paint output from the old
  68             Drawinglayer as long as exporters and/or filters still use the Metafile
  69             and the extra-data added to it (which can be seen mostly as 'extensions'
  70             or simply as 'hacks').
  71          */
  72         class DRAWINGLAYER_DLLPUBLIC VclMetafileProcessor2D : public VclProcessor2D
  73         {
  74         private:
  75             /// local helper(s)
  76             Rectangle impDumpToMetaFile(
  77                 const primitive2d::Primitive2DSequence& rContent,
  78                 GDIMetaFile& o_rContentMetafile);
  79             void impConvertFillGradientAttributeToVCLGradient(
  80                 Gradient& o_rVCLGradient,
  81                 const attribute::FillGradientAttribute& rFiGrAtt,
  82                 bool bIsTransparenceGradient);
  83             void impStartSvtGraphicFill(SvtGraphicFill* pSvtGraphicFill);
  84             void impEndSvtGraphicFill(SvtGraphicFill* pSvtGraphicFill);
  85             SvtGraphicStroke* impTryToCreateSvtGraphicStroke(
  86                 const basegfx::B2DPolygon& rB2DPolygon,
  87                 const basegfx::BColor* pColor,
  88                 const attribute::LineAttribute* pLineAttribute,
  89                 const attribute::StrokeAttribute* pStrokeAttribute,
  90                 const attribute::LineStartEndAttribute* pStart,
  91                 const attribute::LineStartEndAttribute* pEnd);
  92             void impStartSvtGraphicStroke(SvtGraphicStroke* pSvtGraphicStroke);
  93             void impEndSvtGraphicStroke(SvtGraphicStroke* pSvtGraphicStroke);
  94
  95             /// Convert the fWidth to the same space as its coordinates.
  96             double getTransformedLineWidth( double fWidth ) const;
  97
  98             /// the current clipping PolyPolygon from MaskPrimitive2D
  99             basegfx::B2DPolyPolygon             maClipPolyPolygon;
 100
 101             /// the target MetaFile
 102             GDIMetaFile*                        mpMetaFile;
 103
 104             /*  do not allow embedding SvtGraphicFills into each other,
 105                 use a counter to prevent that
 106              */
 107             sal_uInt32                          mnSvtGraphicFillCount;
 108
 109             /// same for SvtGraphicStroke
 110             sal_uInt32                          mnSvtGraphicStrokeCount;
 111
 112             /*  hold the last unified transparence value to have it handy
 113                 on SvtGraphicStroke creation
 114              */
 115             double                              mfCurrentUnifiedTransparence;
 116
 117             /*  break iterator support
 118                 made static so it only needs to be fetched once, even with many single
 119                 constructed VclMetafileProcessor2D. It's still incarnated on demand,
 120                 but exists for OOo runtime now by purpose.
 121              */
 122             static ::com::sun::star::uno::Reference< ::com::sun::star::i18n::XBreakIterator >   mxBreakIterator;
 123
 124             /*  vcl::PDFExtOutDevData support
 125                 For the first step, some extra actions at vcl::PDFExtOutDevData need to
 126                 be emulated with the VclMetafileProcessor2D. These are potentially temporarily
 127                 since PDF export may use PrimitiveSequences one day directly.
 128              */
 129             vcl::PDFExtOutDevData*              mpPDFExtOutDevData;
 130
 131         protected:
 132             /*  the local processor for BasePrinitive2D-Implementation based primitives,
 133                 called from the common process()-implementation
 134              */
 135             virtual void processBasePrimitive2D(const primitive2d::BasePrimitive2D& rCandidate);
 136
 137         public:
 138             /// constructor/destructor
 139             VclMetafileProcessor2D(
 140                 const geometry::ViewInformation2D& rViewInformation,
 141                 OutputDevice& rOutDev);
 142             virtual ~VclMetafileProcessor2D();
 143         };
 144     } // end of namespace processor2d
 145 } // end of namespace drawinglayer
 146
 147 //////////////////////////////////////////////////////////////////////////////
 148
 149 #endif // INCLUDED_DRAWINGLAYER_PROCESSOR2D_VCLMETAFILEPROCESSOR2D_HXX
 150
 151 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */