test/swfedit_list.c

   1 /* Swfedit
   2  * Copyright (C) 2007 Benjamin Otte <otte@gnome.org>
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  * Boston, MA  02110-1301  USA
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #endif
  23
  24 #include "swfedit_list.h"
  25
  26 G_DEFINE_TYPE (SwfeditList, swfedit_list, SWFEDIT_TYPE_TOKEN)
  27
  28 static void
  29 swfedit_list_dispose (GObject *object)
  30 {
  31   //SwfeditList *list = SWFEDIT_LIST (object);
  32
  33   G_OBJECT_CLASS (swfedit_list_parent_class)->dispose (object);
  34 }
  35
  36 static void
  37 swfedit_list_changed (SwfeditToken *token, guint i)
  38 {
  39   guint j;
  40   SwfeditList *list = SWFEDIT_LIST (token);
  41   SwfeditTokenEntry *entry = &g_array_index (token->tokens, SwfeditTokenEntry, i);
  42
  43   /* update visibility */
  44   for (j = i + 1; j % list->n_defs != 0; j++) {
  45     if (list->def[j].n_items == (j % list->n_defs) + 1) {
  46       swfedit_token_set_visible (token, j, entry->value != NULL);
  47     }
  48   }
  49   /* update length */
  50   j = list->def[i % list->n_defs].n_items;
  51   if (j != 0) {
  52     entry = &g_array_index (token->tokens,
  53         SwfeditTokenEntry, j - 1);
  54     if (entry->type == SWFEDIT_TOKEN_UINT32) {
  55       SwfdecOut *out = swfdec_out_open ();
  56       SwfdecBuffer *buffer;
  57       swfedit_tag_write_token (token, out, i);
  58       buffer = swfdec_out_close (out);
  59       if (entry->value != GUINT_TO_POINTER (buffer->length)) {
  60         swfedit_token_set (token, i / list->n_defs * list->n_defs + j - 1,
  61             GUINT_TO_POINTER (buffer->length));
  62       }
  63       swfdec_buffer_unref (buffer);
  64     }
  65   }
  66   /* maybe add items */
  67   if (i == token->tokens->len - 1) {
  68     for (j = 0; j < list->n_defs; j++) {
  69       const SwfeditTagDefinition *def = &list->def[(j + 1) % list->n_defs];
  70       swfedit_tag_add_token (SWFEDIT_TOKEN (list), def->name, def->type, def->hint);
  71     }
  72   }
  73 }
  74
  75 static void
  76 swfedit_list_class_init (SwfeditListClass *klass)
  77 {
  78   GObjectClass *object_class = G_OBJECT_CLASS (klass);
  79   SwfeditTokenClass *token_class = SWFEDIT_TOKEN_CLASS (klass);
  80
  81   object_class->dispose = swfedit_list_dispose;
  82
  83   token_class->changed = swfedit_list_changed;
  84 }
  85
  86 static void
  87 swfedit_list_init (SwfeditList *list)
  88 {
  89 }
  90
  91 static SwfeditList *
  92 swfedit_list_new_internal (const SwfeditTagDefinition *def)
  93 {
  94   SwfeditList *list;
  95
  96   list = g_object_new (SWFEDIT_TYPE_LIST, NULL);
  97   list->def = def;
  98   for (; def->name; def++)
  99     list->n_defs++;
 100
 101   return list;
 102 }
 103
 104 SwfeditList *
 105 swfedit_list_new (const SwfeditTagDefinition *def)
 106 {
 107   SwfeditList *list;
 108
 109   g_return_val_if_fail (def != NULL, NULL);
 110
 111   list = swfedit_list_new_internal (def);
 112   swfedit_tag_add_token (SWFEDIT_TOKEN (list), def->name, def->type, def->hint);
 113
 114   return list;
 115 }
 116
 117 SwfeditList *
 118 swfedit_list_new_read (SwfeditToken *parent, SwfdecBits *bits, const SwfeditTagDefinition *def)
 119 {
 120   SwfeditList *list;
 121   SwfeditTokenEntry *entry;
 122   guint offset;
 123
 124   g_return_val_if_fail (bits != NULL, NULL);
 125   g_return_val_if_fail (def != NULL, NULL);
 126
 127   list = swfedit_list_new_internal (def);
 128   SWFEDIT_TOKEN (list)->parent = parent;
 129   offset = 0;
 130   while (TRUE) {
 131     def = list->def;
 132     swfedit_tag_read_tag (SWFEDIT_TOKEN (list), bits, def);
 133     entry = &g_array_index (SWFEDIT_TOKEN (list)->tokens, SwfeditTokenEntry,
 134         SWFEDIT_TOKEN (list)->tokens->len - 1);
 135     if (GPOINTER_TO_UINT (entry->value) == 0)
 136       break;
 137
 138     def++;
 139     for (;def->name != NULL; def++) {
 140       SwfeditTagDefinition def2 = *def;
 141       if (def2.n_items)
 142         def2.n_items += offset;
 143       swfedit_tag_read_tag (SWFEDIT_TOKEN (list), bits, &def2);
 144     }
 145     offset += list->n_defs;
 146   }
 147   return list;
 148 }
 149