C++ (Cpp) CHAMPLAIN_IS_TILE_SOURCE 예제들

예제 #1

파일: champlain-map-source-chain.c 프로젝트: jozef/champlain

/**
 * champlain_map_source_chain_push:
 * @source_chain: a #ChamplainMapSourceChain
 * @map_source: the #ChamplainMapSource to be pushed into the chain
 *
 * Pushes a map source into the chain.
 *
 * Since: 0.6
 */
void
champlain_map_source_chain_push (ChamplainMapSourceChain *source_chain,
    ChamplainMapSource *map_source)
{
  ChamplainMapSourceChainPrivate *priv = source_chain->priv;
  gboolean is_cache = FALSE;

  if (CHAMPLAIN_IS_TILE_CACHE(map_source))
    is_cache = TRUE;
  else
    g_return_if_fail (CHAMPLAIN_IS_TILE_SOURCE(map_source));

  g_object_ref_sink (map_source);

  if (!priv->stack_top)
    {
      ChamplainMapSource *chain_next_source = champlain_map_source_get_next_source (CHAMPLAIN_MAP_SOURCE(source_chain));

      /* tile source has to be last */
      g_return_if_fail (!is_cache);

      priv->stack_top = map_source;
      priv->stack_bottom = map_source;
      if (chain_next_source)
        champlain_map_source_set_next_source (priv->stack_bottom, chain_next_source);
    }
  else
    {
      if (g_signal_handler_is_connected (priv->stack_top, priv->sig_handler_id))
        g_signal_handler_disconnect (priv->stack_top, priv->sig_handler_id);

      champlain_map_source_set_next_source (map_source, priv->stack_top);
      priv->stack_top = map_source;

      if (is_cache)
        {
          ChamplainTileCache *tile_cache = CHAMPLAIN_TILE_CACHE(map_source);
          assign_cache_of_next_source_sequence (source_chain, priv->stack_top, tile_cache);
        }
    }

  priv->sig_handler_id = g_signal_connect (priv->stack_top, "reload-tiles",
                         G_CALLBACK (reload_tiles_cb), source_chain);
}

예제 #2

파일: champlain-map-source-chain.c 프로젝트: 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);
    }
}

예제 #3

파일: champlain-map-source-chain.c 프로젝트: Distrotech/libchamplain

/**
 * champlain_map_source_chain_push:
 * @source_chain: a #ChamplainMapSourceChain
 * @map_source: the #ChamplainMapSource to be pushed into the chain
 *
 * Pushes a map source into the chain.
 *
 * Since: 0.6
 */
void
champlain_map_source_chain_push (ChamplainMapSourceChain *source_chain,
    ChamplainMapSource *map_source)
{
  ChamplainMapSourceChainPrivate *priv = source_chain->priv;
  gboolean is_cache = FALSE;

  if (CHAMPLAIN_IS_TILE_CACHE (map_source))
    is_cache = TRUE;
  else
    g_return_if_fail (CHAMPLAIN_IS_TILE_SOURCE (map_source));

  g_object_ref_sink (map_source);

  if (!priv->stack_top)
    {
      ChamplainMapSource *chain_next_source = champlain_map_source_get_next_source (CHAMPLAIN_MAP_SOURCE (source_chain));

      /* tile source has to be last */
      g_return_if_fail (!is_cache);

      priv->stack_top = map_source;
      priv->stack_bottom = map_source;
      if (chain_next_source)
        champlain_map_source_set_next_source (priv->stack_bottom, chain_next_source);
    }
  else
    {
      champlain_map_source_set_next_source (map_source, priv->stack_top);
      priv->stack_top = map_source;

      if (is_cache)
        {
          ChamplainTileCache *tile_cache = CHAMPLAIN_TILE_CACHE (map_source);
          assign_cache_of_next_source_sequence (source_chain, priv->stack_top, tile_cache);
        }
    }
}