gboolean
gtk_icon_cache_has_icon_in_directory (GtkIconCache *cache,
const gchar *icon_name,
const gchar *directory)
{
guint32 hash_offset;
guint32 n_buckets;
guint32 chain_offset;
gint hash;
gboolean found_icon = FALSE;
gint directory_index;
directory_index = get_directory_index (cache, directory);
if (directory_index == -1)
return FALSE;
hash_offset = GET_UINT32 (cache->buffer, 4);
n_buckets = GET_UINT32 (cache->buffer, hash_offset);
hash = icon_name_hash (icon_name) % n_buckets;
chain_offset = GET_UINT32 (cache->buffer, hash_offset + 4 + 4 * hash);
while (chain_offset != 0xffffffff)
{
guint32 name_offset = GET_UINT32 (cache->buffer, chain_offset + 4);
gchar *name = cache->buffer + name_offset;
if (strcmp (name, icon_name) == 0)
{
found_icon = TRUE;
break;
}
chain_offset = GET_UINT32 (cache->buffer, chain_offset);
}
if (found_icon)
{
guint32 image_list_offset = GET_UINT32 (cache->buffer, chain_offset + 8);
guint32 n_images = GET_UINT32 (cache->buffer, image_list_offset);
guint32 image_offset = image_list_offset + 4;
gint i;
for (i = 0; i < n_images; i++)
{
guint16 index = GET_UINT16 (cache->buffer, image_offset);
if (index == directory_index)
return TRUE;
image_offset += 8;
}
}
return FALSE;
}
static gint
find_image_offset (GtkIconCache *cache,
const gchar *icon_name,
const gchar *directory)
{
guint32 hash_offset;
guint32 n_buckets;
guint32 chain_offset;
int hash, directory_index;
guint32 image_list_offset, n_images;
gboolean found = FALSE;
int i;
hash_offset = GET_UINT32 (cache->buffer, 4);
n_buckets = GET_UINT32 (cache->buffer, hash_offset);
hash = icon_name_hash (icon_name) % n_buckets;
chain_offset = GET_UINT32 (cache->buffer, hash_offset + 4 + 4 * hash);
while (chain_offset != 0xffffffff)
{
guint32 name_offset = GET_UINT32 (cache->buffer, chain_offset + 4);
gchar *name = cache->buffer + name_offset;
if (strcmp (name, icon_name) == 0)
{
found = TRUE;
break;
}
chain_offset = GET_UINT32 (cache->buffer, chain_offset);
}
if (!found) {
return 0;
}
/* We've found an icon list, now check if we have the right icon in it */
directory_index = get_directory_index (cache, directory);
image_list_offset = GET_UINT32 (cache->buffer, chain_offset + 8);
n_images = GET_UINT32 (cache->buffer, image_list_offset);
for (i = 0; i < n_images; i++)
{
if (GET_UINT16 (cache->buffer, image_list_offset + 4 + 8 * i) ==
directory_index)
return image_list_offset + 4 + 8 * i;
}
return 0;
}
void
gtk_icon_cache_add_icons (GtkIconCache *cache,
const gchar *directory,
GHashTable *hash_table)
{
int directory_index;
guint32 hash_offset, n_buckets;
guint32 chain_offset;
guint32 image_list_offset, n_images;
int i, j;
directory_index = get_directory_index (cache, directory);
if (directory_index == -1)
return;
hash_offset = GET_UINT32 (cache->buffer, 4);
n_buckets = GET_UINT32 (cache->buffer, hash_offset);
for (i = 0; i < n_buckets; i++)
{
chain_offset = GET_UINT32 (cache->buffer, hash_offset + 4 + 4 * i);
while (chain_offset != 0xffffffff)
{
guint32 name_offset = GET_UINT32 (cache->buffer, chain_offset + 4);
gchar *name = cache->buffer + name_offset;
image_list_offset = GET_UINT32 (cache->buffer, chain_offset + 8);
n_images = GET_UINT32 (cache->buffer, image_list_offset);
for (j = 0; j < n_images; j++)
{
if (GET_UINT16 (cache->buffer, image_list_offset + 4 + 8 * j) ==
directory_index)
g_hash_table_insert (hash_table, name, NULL);
}
chain_offset = GET_UINT32 (cache->buffer, chain_offset);
}
}
}
gboolean
gtk_icon_cache_has_icons (GtkIconCache *cache,
const gchar *directory)
{
int directory_index;
guint32 hash_offset, n_buckets;
guint32 chain_offset;
guint32 image_list_offset, n_images;
int i, j;
directory_index = get_directory_index (cache, directory);
if (directory_index == -1)
return FALSE;
hash_offset = GET_UINT32 (cache->buffer, 4);
n_buckets = GET_UINT32 (cache->buffer, hash_offset);
for (i = 0; i < n_buckets; i++)
{
chain_offset = GET_UINT32 (cache->buffer, hash_offset + 4 + 4 * i);
while (chain_offset != 0xffffffff)
{
image_list_offset = GET_UINT32 (cache->buffer, chain_offset + 8);
n_images = GET_UINT32 (cache->buffer, image_list_offset);
for (j = 0; j < n_images; j++)
{
if (GET_UINT16 (cache->buffer, image_list_offset + 4 + 8 * j) ==
directory_index)
return TRUE;
}
chain_offset = GET_UINT32 (cache->buffer, chain_offset);
}
}
return FALSE;
}
gint
gtk_icon_cache_get_directory_index (GtkIconCache *cache,
const gchar *directory)
{
return get_directory_index (cache, directory);
}
gboolean
_gtk_icon_cache_has_directory (GtkIconCache *cache,
const gchar *directory)
{
return get_directory_index (cache, directory) != -1;
}
