vcl/unx/inc/xfont.hxx

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  30 #ifndef EXTENDED_FONTSTRUCT_HXX
  31 #define EXTENDED_FONTSTRUCT_HXX
  32
  33 #ifndef _XLIB_H_
  34 #include <tools/prex.h>
  35 #include <X11/Xlib.h>
  36 #include <tools/postx.h>
  37 #endif
  38 #include <tools/ref.hxx>
  39 #include <rtl/tencinfo.h>
  40 #include <vcl/vclenum.hxx>
  41 #include <vcl/sallayout.hxx>
  42
  43 typedef unsigned short sal_MultiByte;
  44
  45 class ImplFontMetricData;
  46 class ExtendedXlfd;
  47
  48 struct VerticalTextItem
  49 {
  50     BOOL                                mbFixed;
  51     XFontStruct*                mpXFontStruct;
  52     const sal_Unicode*  mpString;
  53     int                                 mnLength;
  54     int                                 mnTransX;
  55     int                                 mnTransY;
  56     int                                 mnFixedAdvance;
  57     int*                                mpAdvanceAry;
  58
  59     VerticalTextItem( XFontStruct* pXFontStruct,
  60                         const sal_Unicode* pString,
  61                         int nLength,
  62                         int nTransX,
  63                         int nTransY,
  64                         int nFixedAdvance )
  65       : mbFixed( TRUE ),
  66         mpXFontStruct( pXFontStruct ),
  67         mpString( pString ),
  68         mnLength( nLength ),
  69         mnTransX( nTransX ),
  70         mnTransY( nTransY ),
  71         mnFixedAdvance( nFixedAdvance )
  72     {}
  73
  74     VerticalTextItem( XFontStruct* pXFontStruct,
  75                         const sal_Unicode* pString,
  76                         int nLength,
  77                         int nTransX,
  78                         int nTransY,
  79                         int* pAdvanceAry )
  80       : mbFixed( FALSE ),
  81         mpXFontStruct( pXFontStruct ),
  82         mpString( pString ),
  83         mnLength( nLength ),
  84         mnTransX( nTransX ),
  85         mnTransY( nTransY ),
  86         mpAdvanceAry( pAdvanceAry )
  87     {}
  88
  89     ~VerticalTextItem()
  90     {
  91         if (!mbFixed)
  92         {
  93             delete( mpAdvanceAry );
  94         }
  95     }
  96 };
  97
  98 class ExtendedFontStruct : public SvRefBase
  99 {
 100     private:
 101         Display*            mpDisplay;
 102         Size                maPixelSize;
 103         float               mfXScale;
 104         float               mfYScale;
 105         sal_Size            mnDefaultWidth;
 106         sal_Bool            mbVertical;
 107         rtl_TextEncoding    mnCachedEncoding;
 108         rtl_TextEncoding    mnAsciiEncoding;
 109
 110         ExtendedXlfd*       mpXlfd;
 111         XFontStruct**       mpXFontStruct;
 112
 113         // unicode range cache
 114         mutable sal_uInt32* mpRangeCodes;
 115         mutable int         mnRangeCount;
 116
 117         int                                     LoadEncoding( rtl_TextEncoding nEncoding );
 118         FontPitch                       GetSpacing( rtl_TextEncoding nEncoding );
 119         bool                            GetFontBoundingBox( XCharStruct *pCharStruct,
 120                                     int *pAscent, int *pDescent ) ;
 121
 122         sal_Size                        GetDefaultWidth();
 123         sal_Size                        GetCharWidth8( sal_Unicode nFrom, sal_Unicode nTo,
 124                                     sal_Int32 *pWidthArray,
 125                                     rtl_TextEncoding nEncoding );
 126         sal_Size                        GetCharWidthUTF16( sal_Unicode nFrom, sal_Unicode nTo,
 127                                     sal_Int32 *pWidthArray );
 128         sal_Size                        GetCharWidth16( sal_Unicode nFrom, sal_Unicode nTo,
 129                                     sal_Int32 *pWidthArray, ExtendedFontStruct *pFallback );
 130     public:
 131                             ExtendedFontStruct( Display* pDisplay,
 132                                     const Size& rPixelSize, sal_Bool bVertical,
 133                                     ExtendedXlfd* pXlfd );
 134                             ~ExtendedFontStruct();
 135         bool                            Match( const ExtendedXlfd *pXlfd,
 136                                     const Size& rPixelSize, sal_Bool bVertical ) const;
 137         XFontStruct*            GetFontStruct( rtl_TextEncoding nEncoding );
 138         XFontStruct*            GetFontStruct( sal_Unicode nChar,
 139                                     rtl_TextEncoding *pEncoding );
 140         bool                            ToImplFontMetricData( ImplFontMetricData *pMetric );
 141         rtl_TextEncoding        GetAsciiEncoding( int *pAsciiRange = NULL ) const;
 142         sal_Size                        GetCharWidth( sal_Unicode,
 143                                     sal_Int32* pPhysWidth, sal_Int32* pLogWidth );
 144         int                 GetFontCodeRanges( sal_uInt32* pCodePairs ) const;
 145         bool                HasUnicodeChar( sal_Unicode ) const;
 146 };
 147
 148 // Declaration and Implementation for ExtendedFontStructRef: Add RefCounting
 149 // to ExtendedFontStruct (it's not possible to separate decl and impl into
 150 // a separate source file: all ref member functions are inline
 151 SV_DECL_IMPL_REF( ExtendedFontStruct );
 152
 153 class X11FontLayout : public GenericSalLayout
 154 {
 155 public:
 156                     X11FontLayout( ExtendedFontStruct& );
 157     virtual bool    LayoutText( ImplLayoutArgs& );
 158     virtual void    AdjustLayout( ImplLayoutArgs& );
 159     virtual void    DrawText( SalGraphics& ) const;
 160
 161 private:
 162     ExtendedFontStruct& mrFont;
 163 };
 164
 165 #endif /* EXTENDED_FONTSTRUCT_HXX */