ImplLayoutArgs.hxx

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#include "sallayout.hxx"
 
namespace vcl::text
{
class VCL_DLLPUBLIC ImplLayoutArgs
{
public:
    // string related inputs
    LanguageTag maLanguageTag;
    SalLayoutFlags mnFlags;
    const OUString& mrStr;
    int mnMinCharPos;
    int mnEndCharPos;
 
    // performance hack
    vcl::text::TextLayoutCache const* m_pTextLayoutCache;
 
    // positioning related inputs
    const double* mpDXArray; // in floating point pixel units
    const sal_Bool* mpKashidaArray;
    double mnLayoutWidth; // in pixel units
    Degree10 mnOrientation; // in 0-3600 system
 
    // data for bidi and glyph+script fallback
    ImplLayoutRuns maRuns;
    ImplLayoutRuns maFallbackRuns;
 
    ImplLayoutArgs(OUString const& rStr, int nMinCharPos, int nEndCharPos, SalLayoutFlags nFlags,
                   LanguageTag aLanguageTag, vcl::text::TextLayoutCache const* pLayoutCache);
 
    void SetLayoutWidth(double nWidth);
    void SetDXArray(const double* pDXArray);
    void SetKashidaArray(const sal_Bool* pKashidaArray);
    void SetOrientation(Degree10 nOrientation);
 
    void ResetPos();
    bool GetNextPos(int* nCharPos, bool* bRTL);
    bool GetNextRun(int* nMinRunPos, int* nEndRunPos, bool* bRTL);
    void AddFallbackRun(int nMinRunPos, int nEndRunPos, bool bRTL);
    bool HasDXArray() const { return mpDXArray; }
 
    // methods used by BiDi and glyph fallback
    bool HasFallbackRun() const;
    bool PrepareFallback(const SalLayoutGlyphsImpl* pGlyphsImpl);
 
private:
    void AddRun(int nMinCharPos, int nEndCharPos, bool bRTL);
};
}
 
// For nice SAL_INFO logging of ImplLayoutArgs values
std::ostream& operator<<(std::ostream& s, vcl::text::ImplLayoutArgs const& rArgs);
 
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