static void
meta_background_actor_get_preferred_width (ClutterActor *actor,
gfloat for_height,
gfloat *min_width_p,
gfloat *natural_width_p)
{
ClutterContent *content;
gfloat width;
content = clutter_actor_get_content (actor);
if (content)
clutter_content_get_preferred_size (content, &width, NULL);
else
width = 0;
if (min_width_p)
*min_width_p = width;
if (natural_width_p)
*natural_width_p = width;
}
static void
meta_background_actor_get_preferred_height (ClutterActor *actor,
gfloat for_width,
gfloat *min_height_p,
gfloat *natural_height_p)
{
ClutterContent *content;
gfloat height;
content = clutter_actor_get_content (actor);
if (content)
clutter_content_get_preferred_size (content, NULL, &height);
else
height = 0;
if (min_height_p)
*min_height_p = height;
if (natural_height_p)
*natural_height_p = height;
}
static void
image_rendered_cb (GInputStream *stream, GAsyncResult *res, RendererData *data)
{
ChamplainTile *tile = data->tile;
gboolean error = TRUE;
GError *gerror = NULL;
ClutterActor *actor = NULL;
GdkPixbuf *pixbuf;
ClutterContent *content;
gfloat width, height;
pixbuf = gdk_pixbuf_new_from_stream_finish (res, NULL);
if (!pixbuf)
{
g_warning ("NULL pixbuf");
goto finish;
}
/* Load the image into clutter */
content = clutter_image_new ();
if (!clutter_image_set_data (CLUTTER_IMAGE (content),
gdk_pixbuf_get_pixels (pixbuf),
gdk_pixbuf_get_has_alpha (pixbuf)
? COGL_PIXEL_FORMAT_RGBA_8888
: COGL_PIXEL_FORMAT_RGB_888,
gdk_pixbuf_get_width (pixbuf),
gdk_pixbuf_get_height (pixbuf),
gdk_pixbuf_get_rowstride (pixbuf),
&gerror))
{
if (gerror)
{
g_warning ("Unable to transfer to clutter: %s", gerror->message);
g_error_free (gerror);
}
g_object_unref (content);
goto finish;
}
clutter_content_get_preferred_size (content, &width, &height);
actor = clutter_actor_new ();
clutter_actor_set_size (actor, width, height);
clutter_actor_set_content (actor, content);
g_object_unref (content);
/* has to be set for proper opacity */
clutter_actor_set_offscreen_redirect (actor, CLUTTER_OFFSCREEN_REDIRECT_AUTOMATIC_FOR_OPACITY);
error = FALSE;
finish:
if (actor)
champlain_tile_set_content (tile, actor);
g_signal_emit_by_name (tile, "render-complete", data->data, data->size, error);
if (pixbuf)
g_object_unref (pixbuf);
g_object_unref (data->renderer);
g_object_unref (tile);
g_object_unref (stream);
g_free (data->data);
g_slice_free (RendererData, data);
}
