pdf2swf/xpdf/BuiltinFont.cc

   1 //========================================================================
   2 //
   3 // BuiltinFont.cc
   4 //
   5 // Copyright 2001-2002 Glyph & Cog, LLC
   6 //
   7 //========================================================================
   8
   9 #ifdef __GNUC__
  10 #pragma implementation
  11 #endif
  12
  13 #include <aconf.h>
  14 #include <stdlib.h>
  15 #include <string.h>
  16 #include "gmem.h"
  17 #include "FontEncodingTables.h"
  18 #include "BuiltinFont.h"
  19
  20 //------------------------------------------------------------------------
  21
  22 BuiltinFontWidths::BuiltinFontWidths(BuiltinFontWidth *widths, int sizeA) {
  23   int i, h;
  24
  25   size = sizeA;
  26   tab = (BuiltinFontWidth **)gmalloc(size * sizeof(BuiltinFontWidth *));
  27   for (i = 0; i < size; ++i) {
  28     tab[i] = NULL;
  29   }
  30   for (i = 0; i < sizeA; ++i) {
  31     h = hash(widths[i].name);
  32     widths[i].next = tab[h];
  33     tab[h] = &widths[i];
  34   }
  35 }
  36
  37 BuiltinFontWidths::~BuiltinFontWidths() {
  38   gfree(tab);
  39 }
  40
  41 GBool BuiltinFontWidths::getWidth(char *name, Gushort *width) {
  42   int h;
  43   BuiltinFontWidth *p;
  44
  45   h = hash(name);
  46   for (p = tab[h]; p; p = p->next) {
  47     if (!strcmp(p->name, name)) {
  48       *width = p->width;
  49       return gTrue;
  50     }
  51   }
  52   return gFalse;
  53 }
  54
  55 int BuiltinFontWidths::hash(char *name) {
  56   char *p;
  57   unsigned int h;
  58
  59   h = 0;
  60   for (p = name; *p; ++p) {
  61     h = 17 * h + (int)(*p & 0xff);
  62   }
  63   return (int)(h % size);
  64 }