icuSources/samples/layout/FontMap.h

   1 /*
   2  ******************************************************************************
   3  * © 2016 and later: Unicode, Inc. and others.                    *
   4  * License & terms of use: http://www.unicode.org/copyright.html#License      *
   5  ******************************************************************************
   6  ******************************************************************************
   7  * Copyright (C) 1998-2003, International Business Machines Corporation and   *
   8  * others. All Rights Reserved.                                               *
   9  ******************************************************************************
  10  */
  11
  12 #ifndef __FONTMAP_H
  13 #define __FONTMAP_H
  14
  15 #include "layout/LETypes.h"
  16 #include "layout/LEScripts.h"
  17 #include "layout/LEFontInstance.h"
  18
  19 #include "GUISupport.h"
  20
  21 #define BUFFER_SIZE 128
  22
  23 class FontMap
  24 {
  25 public:
  26     FontMap(const char *fileName, le_int16 pointSize, GUISupport *guiSupport, LEErrorCode &status);
  27
  28     virtual ~FontMap();
  29
  30     virtual const LEFontInstance *getScriptFont(le_int32 scriptCode, LEErrorCode &status);
  31
  32     virtual le_int16 getPointSize() const;
  33
  34     virtual le_int32 getAscent() const;
  35
  36     virtual le_int32 getDescent() const;
  37
  38     virtual le_int32 getLeading() const;
  39
  40 protected:
  41     virtual const LEFontInstance *openFont(const char *fontName, le_int16 pointSize, LEErrorCode &status) = 0;
  42
  43     char errorMessage[256];
  44
  45 private:
  46     static char *strip(char *s);
  47     le_int32 getFontIndex(const char *fontName);
  48     void getMaxMetrics();
  49
  50     le_int16 fPointSize;
  51     le_int32 fFontCount;
  52
  53     le_int32 fAscent;
  54     le_int32 fDescent;
  55     le_int32 fLeading;
  56
  57     GUISupport *fGUISupport;
  58
  59     const LEFontInstance *fFontInstances[scriptCodeCount];
  60     const char *fFontNames[scriptCodeCount];
  61     le_int32 fFontIndices[scriptCodeCount];
  62 };
  63
  64 inline le_int16 FontMap::getPointSize() const
  65 {
  66     return fPointSize;
  67 }
  68
  69 #endif
  70