Add cogl_primitive_foreach_attribute()

This adds a public function to iterate the attributes of a
CoglPrimitive. Previously there was no way to query back the
attributes but there was methods to query back all of the other
properties.

Reviewed-by: Robert Bragg <robert@linux.intel.com>
This commit is contained in:
Neil Roberts 2012-02-06 13:29:35 +00:00
parent 146803c191
commit 354e923cbf
3 changed files with 49 additions and 0 deletions

View File

@ -596,3 +596,15 @@ cogl_primitive_draw (CoglPrimitive *primitive)
{
_cogl_primitive_draw (primitive, 0 /* no flags */);
}
void
cogl_primitive_foreach_attribute (CoglPrimitive *primitive,
CoglPrimitiveAttributeCallback callback,
void *user_data)
{
int i;
for (i = 0; i < primitive->n_attributes; i++)
if (!callback (primitive, primitive->attributes[i], user_data))
break;
}

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@ -816,6 +816,41 @@ cogl_primitive_draw (CoglPrimitive *primitive);
gboolean
cogl_is_primitive (void *object);
/**
* CoglPrimitiveAttributeCallback:
* @primitive: The #CoglPrimitive whose attributes are being iterated
* @attribute: The #CoglAttribute
* @user_data: The private data passed to cogl_primitive_foreach_attribute()
*
* The callback prototype used with cogl_primitive_foreach_attribute()
* for iterating all the attributes of a #CoglPrimitive.
*
* The function should return TRUE to continue iteration or FALSE to
* stop.
*
* Since: 1.10
* Stability: Unstable
*/
typedef gboolean (* CoglPrimitiveAttributeCallback) (CoglPrimitive *primitive,
CoglAttribute *attribute,
void *user_data);
/**
* cogl_primitive_foreach_attribute:
* @primitive: A #CoglPrimitive object
* @callback: A #CoglPrimitiveAttributeCallback to be called for each attribute
* @user_data: Private data that will be passed to the callback
*
* Iterates all the attributes of the given #CoglPrimitive.
*
* Since: 1.10
* Stability: Unstable
*/
void
cogl_primitive_foreach_attribute (CoglPrimitive *primitive,
CoglPrimitiveAttributeCallback callback,
void *user_data);
G_END_DECLS
#endif /* __COGL_PRIMITIVE_H__ */

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@ -238,6 +238,8 @@ cogl_primitive_set_attributes
cogl_primitive_set_indices
cogl_primitive_draw
cogl_primitive_copy
CoglPrimitiveAttributeCallback
cogl_primitive_foreach_attribute
</SECTION>
<SECTION>