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actor: Add internal "create textute node" function

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To avoid excessive copy and paste. We could even consider making it
public before release.
This commit is contained in:
Emmanuele Bassi 2015-08-24 09:59:16 +01:00
parent 6cc12adf4d
commit cf7e37b53b
2 changed files with 66 additions and 0 deletions
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3
clutter/clutter-actor-private.h
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@ -319,6 +319,9 @@ void _clutter_actor_queue_only_relayout
CoglFramebuffer * _clutter_actor_get_active_framebuffer (ClutterActor *actor);
ClutterPaintNode * clutter_actor_create_texture_paint_node (ClutterActor *self,
CoglTexture *texture);
G_END_DECLS
#endif /* __CLUTTER_ACTOR_PRIVATE_H__ */

63
clutter/clutter-actor.c
View File

@ -21037,3 +21037,66 @@ clutter_actor_bind_model_with_properties (ClutterActor *self,
clutter_actor_bind_model (self, model, bind_child_with_properties, clos, bind_closure_free);
}
/*< private >
* clutter_actor_create_texture_paint_node:
* @self: a #ClutterActor
* @texture: a #CoglTexture
*
* Creates a #ClutterPaintNode initialized using the state of the
* given #ClutterActor, ready to be used inside the implementation
* of the #ClutterActorClass.paint_node virtual function.
*
* The returned paint node has the geometry set to the size of the
* #ClutterActor:content-box property; it uses the filters specified
* in the #ClutterActor:minification-filter and #ClutterActor:magnification-filter
* properties; and respects the #ClutterActor:content-repeat property.
*
* Returns: (transfer full): The newly created #ClutterPaintNode
*
* Since: 1.24
*/
ClutterPaintNode *
clutter_actor_create_texture_paint_node (ClutterActor *self,
CoglTexture *texture)
{
ClutterActorPrivate *priv = clutter_actor_get_instance_private (self);
ClutterPaintNode *node;
ClutterActorBox box;
ClutterColor color;
g_return_val_if_fail (CLUTTER_IS_ACTOR (self), NULL);
g_return_val_if_fail (texture != NULL, NULL);
clutter_actor_get_content_box (self, &box);
/* ClutterTextureNode will premultiply the blend color, so we
* want it to be white with the paint opacity
*/
color.red = 255;
color.green = 255;
color.blue = 255;
color.alpha = clutter_actor_get_paint_opacity_internal (self);
node = clutter_texture_node_new (texture, &color, priv->min_filter, priv->mag_filter);
clutter_paint_node_set_name (node, "Texture");
if (priv->content_repeat == CLUTTER_REPEAT_NONE)
clutter_paint_node_add_rectangle (node, &box);
else
{
float t_w = 1.f, t_h = 1.f;
if ((priv->content_repeat & CLUTTER_REPEAT_X_AXIS) != FALSE)
t_w = (box.x2 - box.x1) / cogl_texture_get_width (texture);
if ((priv->content_repeat & CLUTTER_REPEAT_Y_AXIS) != FALSE)
t_h = (box.y2 - box.y1) / cogl_texture_get_height (texture);
clutter_paint_node_add_texture_rectangle (node, &box,
0.f, 0.f,
t_w, t_h);
}
return node;
}