include/drawinglayer/primitive2d/textbreakuphelper.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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  19
  20 #ifndef INCLUDED_DRAWINGLAYER_PRIMITIVE2D_TEXTBREAKUPHELPER_HXX
  21 #define INCLUDED_DRAWINGLAYER_PRIMITIVE2D_TEXTBREAKUPHELPER_HXX
  22
  23 #include <drawinglayer/drawinglayerdllapi.h>
  24 #include <drawinglayer/primitive2d/baseprimitive2d.hxx>
  25 #include <drawinglayer/primitive2d/textlayoutdevice.hxx>
  26 #include <basegfx/matrix/b2dhommatrixtools.hxx>
  27
  28 namespace drawinglayer { namespace primitive2d { class TextSimplePortionPrimitive2D; } }
  29
  30
  31 namespace drawinglayer
  32 {
  33     namespace primitive2d
  34     {
  35         enum class BreakupUnit
  36         {
  37             Character,
  38             Word
  39         };
  40
  41         class DRAWINGLAYER_DLLPUBLIC TextBreakupHelper
  42         {
  43         private:
  44             const TextSimplePortionPrimitive2D&     mrSource;
  45             Primitive2DContainer                       mxResult;
  46             TextLayouterDevice                      maTextLayouter;
  47             basegfx::utils::B2DHomMatrixBufferedOnDemandDecompose maDecTrans;
  48
  49             bool                                    mbNoDXArray : 1;
  50
  51             /// create a portion from nIndex to nLength and append to rTempResult
  52             void breakupPortion(Primitive2DContainer& rTempResult, sal_Int32 nIndex, sal_Int32 nLength, bool bWordLineMode);
  53
  54             /// breakup complete primitive
  55             void breakup(BreakupUnit aBreakupUnit);
  56
  57         protected:
  58             /// allow user callback to allow changes to the new TextTransformation. Default
  59             /// does nothing. Retval defines if a primitive gets created, e.g. return false
  60             /// to suppress creation
  61             virtual bool allowChange(sal_uInt32 nCount, basegfx::B2DHomMatrix& rNewTransform, sal_uInt32 nIndex, sal_uInt32 nLength);
  62
  63             /// allow read access to evtl. useful local parts
  64             const TextLayouterDevice& getTextLayouter() const { return maTextLayouter; }
  65             const TextSimplePortionPrimitive2D& getSource() const { return mrSource; }
  66
  67         public:
  68             TextBreakupHelper(const TextSimplePortionPrimitive2D& rSource);
  69             virtual ~TextBreakupHelper();
  70
  71             /// get result
  72             const Primitive2DContainer& getResult(BreakupUnit aBreakupUnit = BreakupUnit::Character) const;
  73         };
  74
  75     } // end of namespace primitive2d
  76 } // end of namespace drawinglayer
  77
  78
  79 #endif //INCLUDED_DRAWINGLAYER_PRIMITIVE2D_TEXTBREAKUPHELPER_HXX
  80
  81 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */