workspace/kcontrol/kfontinst/strigi-analyzer/FontEngine.h

   1 #ifndef __FONT_ENGINE_H__
   2 #define __FONT_ENGINE_H__
   3
   4 /*
   5  * KFontInst - KDE Font Installer
   6  *
   7  * Copyright 2003-2007 Craig Drummond <craig@kde.org>
   8  *
   9  * ----
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19  * General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; see the file COPYING.  If not, write to
  23  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  24  * Boston, MA 02110-1301, USA.
  25  */
  26
  27 #include <config-workspace.h>
  28 #include <fontconfig/fontconfig.h>
  29
  30 #if (FC_VERSION>=20402)
  31 #define HAVE_FcFreeTypeQueryFace
  32 #include <fontconfig/fcfreetype.h>
  33 #endif
  34
  35 #include <ft2build.h>
  36 #include FT_FREETYPE_H
  37 #include <QtCore/QString>
  38 #include <strigi/streambase.h>
  39
  40 class QByteArray;
  41
  42 namespace KFI
  43 {
  44
  45 class CFontEngine
  46 {
  47     public:
  48
  49     enum EType
  50     {
  51         TYPE_OTF,
  52         TYPE_TTF,
  53         TYPE_TTC,
  54         TYPE_TYPE1,
  55         TYPE_PCF,
  56         TYPE_BDF,
  57         TYPE_AFM,
  58
  59         TYPE_UNKNOWN
  60     };
  61
  62     private:
  63
  64     struct TFtData
  65     {
  66         TFtData();
  67         ~TFtData();
  68
  69         FT_Library      library;
  70         FT_Face         face;
  71         bool            open;
  72     };
  73
  74     public:
  75
  76     static EType     getType(const char *fileName, Strigi::InputStream *in);
  77     static EType     getType(const char *fileName);
  78     static EType     getType(const char *fileName, const unsigned char *header);
  79     static double    decodeFixed(long v) { return (v>>16)+(((double)(v&0xFFFF))/0xFFFF); }
  80     static QString & fixFoundry(QString &foundry);
  81
  82     CFontEngine()                     { }
  83     ~CFontEngine()                    { closeFont(); }
  84
  85     //
  86     // General functions - these should be used instead of specific ones below...
  87     //
  88     bool            openFont(EType type, QByteArray &in, const char *fileName, int face=0);
  89     void            closeFont();
  90
  91     //
  92     // These are only for non-bitmap fonts...
  93     const QString & getFamilyName()   { return itsFamily; }
  94     int             getWeight()       { return itsWeight; }
  95     int             getWidth()        { return itsWidth; }
  96     int             getItalic()       { return itsItalic; }
  97     int             getSpacing()      { return itsSpacing; }
  98     const QString & getFoundry()      { return itsFoundry; }
  99     const QString & getVersion()      { return itsVersion; }
 100     int             getNumFaces()     { return itsFt.open ? itsFt.face->num_faces : 1; }
 101
 102     private:
 103
 104     bool            openFontFt(QByteArray &in, const char *fileName, int face, bool type1);
 105     bool            openFontAfm(QByteArray &in);
 106 #ifndef HAVE_FcFreeTypeQueryFace
 107     void            parseXlfdBmp(const QString &lfd);
 108     bool            openFontBdf(QByteArray &in);
 109     bool            openFontPcf(QByteArray &in);
 110 #endif
 111
 112     private:
 113
 114     int        itsWeight,
 115                itsWidth,
 116                itsItalic,
 117                itsSpacing;
 118     QString    itsFamily,
 119                itsFoundry,
 120                itsVersion;
 121     TFtData    itsFt;
 122 };
 123
 124 }
 125
 126 #endif