src/w32bdf.h

   1 /* Definitions and header for handling BDF fonts on the Microsoft W32 API.
   2    Copyright (C) 1999 Free Software Foundation, Inc.
   3
   4 This file is part of GNU Emacs.
   5
   6 GNU Emacs is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU Emacs is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Emacs; see the file COPYING.  If not, write to
  18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19 Boston, MA 02111-1307, USA.  */
  20
  21 /* Based heavily on code by H. Miyashita for Meadow (a descendant of
  22    MULE for W32). */
  23
  24 #ifndef EMACS_W32BDF_H
  25 #define EMACS_W32BDF_H
  26
  27 #define BDF_FIRST_OFFSET_TABLE 0x200
  28 #define BDF_SECOND_OFFSET_TABLE 0x80
  29 #define BDF_SECOND_OFFSET(x) ((x) & 0x7f)
  30 #define BDF_FIRST_OFFSET(x) (((x) >> 8) | (((x) & 0x80) << 1))
  31
  32 #define BDF_FONT_CACHE_SIZE 5000
  33 #define BDF_FONT_CLEAR_SIZE 1000
  34
  35 /* Structure of glyph information of one character.  */
  36 typedef struct
  37 {
  38   int dwidth;                   /* width in pixels */
  39   int bbw, bbh, bbox, bboy;     /* bounding box in pixels */
  40 } glyph_metric;
  41
  42 typedef struct
  43 {
  44   glyph_metric metric;
  45   int bitmap_size;              /* byte lengh of the following slots */
  46   unsigned char *bitmap;        /*  */
  47 } glyph_struct;
  48
  49 typedef struct fchar *pfont_char;
  50
  51 typedef struct
  52 {
  53   glyph_metric metric;
  54   pfont_char psrc;
  55   HBITMAP hbmp;
  56 } cache_bitmap;
  57
  58 typedef struct fchar
  59 {
  60   unsigned char *offset;
  61   cache_bitmap *pcbmp;
  62 } font_char;
  63
  64 typedef struct
  65 {
  66   char *filename;
  67   HANDLE hfile;
  68   HANDLE hfilemap;
  69   unsigned char *font;
  70   unsigned char *seeked;
  71   DWORD size;
  72
  73   font_char *chtbl[BDF_FIRST_OFFSET_TABLE];
  74   int llx, lly, urx, ury;       /* Font bounding box */
  75
  76   int yoffset;
  77   int relative_compose;
  78   int default_ascent;
  79
  80   unsigned char *registry;
  81   unsigned char *encoding;
  82   unsigned char *slant;
  83 /*  unsigned char *width; */
  84
  85   int width;
  86   int height;
  87   int pixsz;
  88 } bdffont;
  89
  90
  91 #define BDF_FILE_SIZE_MAX 256*1024*1024 /* 256Mb */
  92 #define BDF_FONT_FILE(font) (((bdffont*)(font))->filename)
  93 #define MAKELENDSHORT(c1, c2) (unsigned short)((c1) | ((c2) << 8))
  94
  95 bdffont *w32_init_bdf_font (char *filename);
  96 void w32_free_bdf_font (bdffont *fontp);
  97 int w32_get_bdf_glyph (bdffont *fontp, int index, int size,
  98                        glyph_struct *glyph);
  99 int w32_BDF_TextOut (bdffont *fontp, HDC hdc, int left,
 100                      int top, unsigned char *text, int dim,
 101                      int bytelen, int fixed_pitch_size);
 102 int w32_BDF_to_x_font (char *file, char* xstr, int len);
 103
 104 #endif  /* EMACS_W32BDF_H */