vcl/inc/ImplLayoutArgs.hxx

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  19
  20 #include <i18nlangtag/languagetag.hxx>
  21 #include <vcl/outdev.hxx>
  22
  23 #include "impglyphitem.hxx"
  24 #include "ImplLayoutRuns.hxx"
  25
  26 namespace vcl::text
  27 {
  28 class VCL_DLLPUBLIC ImplLayoutArgs
  29 {
  30 public:
  31     // string related inputs
  32     LanguageTag maLanguageTag;
  33     SalLayoutFlags mnFlags;
  34     const OUString& mrStr;
  35     int mnMinCharPos;
  36     int mnEndCharPos;
  37
  38     // performance hack
  39     vcl::text::TextLayoutCache const* m_pTextLayoutCache;
  40
  41     // positioning related inputs
  42     const double* mpDXArray; // in floating point pixel units
  43     const sal_Bool* mpKashidaArray;
  44     double mnLayoutWidth; // in pixel units
  45     Degree10 mnOrientation; // in 0-3600 system
  46
  47     // data for bidi and glyph+script fallback
  48     ImplLayoutRuns maRuns;
  49     ImplLayoutRuns maFallbackRuns;
  50
  51     ImplLayoutArgs(OUString const& rStr, int nMinCharPos, int nEndCharPos, SalLayoutFlags nFlags,
  52                    LanguageTag aLanguageTag, vcl::text::TextLayoutCache const* pLayoutCache);
  53
  54     void SetLayoutWidth(double nWidth);
  55     void SetDXArray(const double* pDXArray);
  56     void SetKashidaArray(const sal_Bool* pKashidaArray);
  57     void SetOrientation(Degree10 nOrientation);
  58
  59     void ResetPos();
  60     bool GetNextPos(int* nCharPos, bool* bRTL);
  61     bool GetNextRun(int* nMinRunPos, int* nEndRunPos, bool* bRTL);
  62     void AddFallbackRun(int nMinRunPos, int nEndRunPos, bool bRTL);
  63     bool HasDXArray() const { return mpDXArray; }
  64
  65     // methods used by BiDi and glyph fallback
  66     bool HasFallbackRun() const;
  67     bool PrepareFallback(const SalLayoutGlyphsImpl* pGlyphsImpl);
  68
  69 private:
  70     void AddRun(int nMinCharPos, int nEndCharPos, bool bRTL);
  71 };
  72 }
  73
  74 // For nice SAL_INFO logging of ImplLayoutArgs values
  75 std::ostream& operator<<(std::ostream& s, vcl::text::ImplLayoutArgs const& rArgs);
  76
  77 /* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */