pdf2swf/xpdf/Dict.cc

   1 //========================================================================
   2 //
   3 // Dict.cc
   4 //
   5 // Copyright 1996-2002 Glyph & Cog, LLC
   6 //
   7 //========================================================================
   8
   9 #ifdef __GNUC__
  10 #pragma implementation
  11 #endif
  12
  13 #include <aconf.h>
  14 #include <stddef.h>
  15 #include <string.h>
  16 #include "gmem.h"
  17 #include "Object.h"
  18 #include "XRef.h"
  19 #include "Dict.h"
  20
  21 //------------------------------------------------------------------------
  22 // Dict
  23 //------------------------------------------------------------------------
  24
  25 Dict::Dict(XRef *xrefA) {
  26   xref = xrefA;
  27   entries = NULL;
  28   size = length = 0;
  29   ref = 1;
  30 }
  31
  32 Dict::~Dict() {
  33   int i;
  34
  35   for (i = 0; i < length; ++i) {
  36     gfree(entries[i].key);
  37     entries[i].val.free();
  38   }
  39   gfree(entries);
  40 }
  41
  42 void Dict::add(char *key, Object *val) {
  43   if (length + 1 > size) {
  44     size += 8;
  45     entries = (DictEntry *)grealloc(entries, size * sizeof(DictEntry));
  46   }
  47   entries[length].key = key;
  48   entries[length].val = *val;
  49   ++length;
  50 }
  51
  52 inline DictEntry *Dict::find(char *key) {
  53   int i;
  54
  55   for (i = 0; i < length; ++i) {
  56     if (!strcmp(key, entries[i].key))
  57       return &entries[i];
  58   }
  59   return NULL;
  60 }
  61
  62 GBool Dict::is(char *type) {
  63   DictEntry *e;
  64
  65   return (e = find("Type")) && e->val.isName(type);
  66 }
  67
  68 Object *Dict::lookup(char *key, Object *obj) {
  69   DictEntry *e;
  70
  71   return (e = find(key)) ? e->val.fetch(xref, obj) : obj->initNull();
  72 }
  73
  74 Object *Dict::lookupNF(char *key, Object *obj) {
  75   DictEntry *e;
  76
  77   return (e = find(key)) ? e->val.copy(obj) : obj->initNull();
  78 }
  79
  80 char *Dict::getKey(int i) {
  81   return entries[i].key;
  82 }
  83
  84 Object *Dict::getVal(int i, Object *obj) {
  85   return entries[i].val.fetch(xref, obj);
  86 }
  87
  88 Object *Dict::getValNF(int i, Object *obj) {
  89   return entries[i].val.copy(obj);
  90 }