icuSources/samples/layout/FontMap.h

   1 /*
   2  ******************************************************************************
   3  * Copyright (C) 1998-2003, International Business Machines Corporation and   *
   4  * others. All Rights Reserved.                                               *
   5  ******************************************************************************
   6  */
   7
   8 #ifndef __FONTMAP_H
   9 #define __FONTMAP_H
  10
  11 #include "layout/LETypes.h"
  12 #include "layout/LEScripts.h"
  13 #include "layout/LEFontInstance.h"
  14
  15 #include "GUISupport.h"
  16
  17 #define BUFFER_SIZE 128
  18
  19 class FontMap
  20 {
  21 public:
  22     FontMap(const char *fileName, le_int16 pointSize, GUISupport *guiSupport, LEErrorCode &status);
  23
  24     virtual ~FontMap();
  25
  26     virtual const LEFontInstance *getScriptFont(le_int32 scriptCode, LEErrorCode &status);
  27
  28     virtual le_int16 getPointSize() const;
  29
  30     virtual le_int32 getAscent() const;
  31
  32     virtual le_int32 getDescent() const;
  33
  34     virtual le_int32 getLeading() const;
  35
  36 protected:
  37     virtual const LEFontInstance *openFont(const char *fontName, le_int16 pointSize, LEErrorCode &status) = 0;
  38
  39     char errorMessage[256];
  40
  41 private:
  42     static char *strip(char *s);
  43     le_int32 getFontIndex(const char *fontName);
  44     void getMaxMetrics();
  45
  46     le_int16 fPointSize;
  47     le_int32 fFontCount;
  48
  49     le_int32 fAscent;
  50     le_int32 fDescent;
  51     le_int32 fLeading;
  52
  53     GUISupport *fGUISupport;
  54
  55     const LEFontInstance *fFontInstances[scriptCodeCount];
  56     const char *fFontNames[scriptCodeCount];
  57     le_int32 fFontIndices[scriptCodeCount];
  58 };
  59
  60 inline le_int16 FontMap::getPointSize() const
  61 {
  62     return fPointSize;
  63 }
  64
  65 #endif
  66