static void
fill_tile (ChamplainMapSource *map_source,
ChamplainTile *tile)
{
g_return_if_fail (CHAMPLAIN_IS_MEMORY_CACHE (map_source));
g_return_if_fail (CHAMPLAIN_IS_TILE (tile));
ChamplainMapSource *next_source = champlain_map_source_get_next_source (map_source);
if (champlain_tile_get_state (tile) == CHAMPLAIN_STATE_DONE)
return;
if (champlain_tile_get_state (tile) != CHAMPLAIN_STATE_LOADED)
{
ChamplainMemoryCache *memory_cache = CHAMPLAIN_MEMORY_CACHE (map_source);
ChamplainMemoryCachePrivate *priv = memory_cache->priv;
ChamplainRenderer *renderer;
GList *link;
gchar *key;
key = generate_queue_key (memory_cache, tile);
link = g_hash_table_lookup (priv->hash_table, key);
g_free (key);
if (link)
{
QueueMember *member = link->data;
move_queue_member_to_head (priv->queue, link);
renderer = champlain_map_source_get_renderer (map_source);
g_return_if_fail (CHAMPLAIN_IS_RENDERER (renderer));
g_object_ref (map_source);
g_object_ref (tile);
g_signal_connect (tile, "render-complete", G_CALLBACK (tile_rendered_cb), map_source);
champlain_renderer_set_data (renderer, member->data, member->size);
champlain_renderer_render (renderer, tile);
return;
}
}
if (CHAMPLAIN_IS_MAP_SOURCE (next_source))
champlain_map_source_fill_tile (next_source, tile);
else if (champlain_tile_get_state (tile) == CHAMPLAIN_STATE_LOADED)
{
/* if we have some content, use the tile even if it wasn't validated */
champlain_tile_set_state (tile, CHAMPLAIN_STATE_DONE);
champlain_tile_display_content (tile);
}
}
static gchar *
generate_queue_key (ChamplainMemoryCache *memory_cache,
ChamplainTile *tile)
{
g_return_val_if_fail (CHAMPLAIN_IS_MEMORY_CACHE (memory_cache), NULL);
g_return_val_if_fail (CHAMPLAIN_IS_TILE (tile), NULL);
ChamplainMapSource *map_source = CHAMPLAIN_MAP_SOURCE (memory_cache);
gchar *key;
key = g_strdup_printf ("%d/%d/%d/%s",
champlain_tile_get_zoom_level (tile),
champlain_tile_get_x (tile),
champlain_tile_get_y (tile),
champlain_map_source_get_id (map_source));
return key;
}
static void
on_tile_filled (ChamplainTileCache *tile_cache,
ChamplainTile *tile)
{
g_return_if_fail (CHAMPLAIN_IS_MEMORY_CACHE (tile_cache));
g_return_if_fail (CHAMPLAIN_IS_TILE (tile));
ChamplainMapSource *map_source = CHAMPLAIN_MAP_SOURCE (tile_cache);
ChamplainMapSource *next_source = champlain_map_source_get_next_source (map_source);
ChamplainMemoryCache *memory_cache = CHAMPLAIN_MEMORY_CACHE (tile_cache);
ChamplainMemoryCachePrivate *priv = memory_cache->priv;
GList *link;
gchar *key;
key = generate_queue_key (memory_cache, tile);
link = g_hash_table_lookup (priv->hash_table, key);
g_free (key);
if (link)
move_queue_member_to_head (priv->queue, link);
if (CHAMPLAIN_IS_TILE_CACHE (next_source))
champlain_tile_cache_on_tile_filled (CHAMPLAIN_TILE_CACHE (next_source), tile);
}
static void
fill_tile (ChamplainMapSource *map_source,
ChamplainTile *tile)
{
g_return_if_fail (CHAMPLAIN_IS_FILE_TILE_SOURCE (map_source));
g_return_if_fail (CHAMPLAIN_IS_TILE (tile));
ChamplainMapSource *next_source = champlain_map_source_get_next_source (map_source);
if (champlain_tile_get_state (tile) == CHAMPLAIN_STATE_DONE)
return;
if (champlain_tile_get_state (tile) != CHAMPLAIN_STATE_LOADED)
{
ChamplainRenderer *renderer;
renderer = champlain_map_source_get_renderer (map_source);
g_return_if_fail (CHAMPLAIN_IS_RENDERER (renderer));
g_object_ref (map_source);
g_object_ref (tile);
g_signal_connect (tile, "render-complete", G_CALLBACK (tile_rendered_cb), map_source);
champlain_renderer_render (renderer, tile);
}
else if (CHAMPLAIN_IS_MAP_SOURCE (next_source))
champlain_map_source_fill_tile (next_source, tile);
else if (champlain_tile_get_state (tile) == CHAMPLAIN_STATE_LOADED)
{
/* if we have some content, use the tile even if it wasn't validated */
champlain_tile_set_state (tile, CHAMPLAIN_STATE_DONE);
champlain_tile_display_content (tile);
}
}
