C++ (Cpp) gegl_node_detect示例

示例#1

文件： gegl-operation-composer.c 项目： AjayRamanathan/gegl

static GeglNode *
detect (GeglOperation *operation,
        gint           x,
        gint           y)
{
  GeglNode *input_node = gegl_operation_get_source_node (operation, "input");
  GeglNode *aux_node   = gegl_operation_get_source_node (operation, "aux");

  if (input_node)
    input_node = gegl_node_detect (input_node, x, y);
  if (aux_node)
    aux_node = gegl_node_detect (aux_node, x, y);

  if (aux_node)
    return aux_node;
  if (input_node)
    return input_node;
  return NULL;
}

示例#2

文件： gegl-operation-filter.c 项目： jonnor/gegl

static GeglNode *
detect (GeglOperation *operation,
        gint           x,
        gint           y)
{
  GeglNode *input_node;

  input_node = gegl_operation_get_source_node (operation, "input");

  if (input_node)
    return gegl_node_detect (input_node, x, y);
  return operation->node;
}

示例#3

文件： crop.c 项目： Distrotech/gegl

static GeglNode *
gegl_crop_detect (GeglOperation *operation,
                  gint           x,
                  gint           y)
{
  GeglProperties *o = GEGL_PROPERTIES (operation);
  GeglNode   *input_node;

  input_node = gegl_operation_get_source_node (operation, "input");

  if (input_node)
    return gegl_node_detect (input_node,
                             x - floor (o->x),
                             y - floor (o->y));

  return operation->node;
}