C++ (Cpp) CHAMPLAIN_TILE_SOURCE示例

示例#1

文件： champlain-file-tile-source.c 项目： GNOME/libchamplain

static void
tile_rendered_cb (ChamplainTile *tile,
    gpointer data,
    guint size,
    gboolean error,
    ChamplainMapSource *map_source)
{
  ChamplainMapSource *next_source;

  g_signal_handlers_disconnect_by_func (tile, tile_rendered_cb, map_source);

  next_source = champlain_map_source_get_next_source (map_source);

  if (!error)
    {
      ChamplainTileSource *tile_source = CHAMPLAIN_TILE_SOURCE (map_source);
      ChamplainTileCache *tile_cache = champlain_tile_source_get_cache (tile_source);

      if (tile_cache && data)
        champlain_tile_cache_store_tile (tile_cache, tile, data, size);

      champlain_tile_set_fade_in (tile, TRUE);
      champlain_tile_set_state (tile, CHAMPLAIN_STATE_DONE);
      champlain_tile_display_content (tile);
    }
  else if (next_source)
    champlain_map_source_fill_tile (next_source, tile);

  g_object_unref (map_source);
  g_object_unref (tile);
}

示例#2

文件： champlain-map-source-chain.c 项目： Distrotech/libchamplain

static void
assign_cache_of_next_source_sequence (ChamplainMapSourceChain *source_chain,
    ChamplainMapSource *start_map_source,
    ChamplainTileCache *tile_cache)
{
  ChamplainMapSource *map_source = start_map_source;
  ChamplainMapSource *chain_next_source = champlain_map_source_get_next_source (CHAMPLAIN_MAP_SOURCE (source_chain));

  do
    {
      map_source = champlain_map_source_get_next_source (map_source);
    } 
  while (CHAMPLAIN_IS_TILE_CACHE (map_source));

  while (CHAMPLAIN_IS_TILE_SOURCE (map_source) && map_source != chain_next_source)
    {
      champlain_tile_source_set_cache (CHAMPLAIN_TILE_SOURCE (map_source), tile_cache);
      map_source = champlain_map_source_get_next_source (map_source);
    }
}