group: make it comparable to ClutterBox
There is a lot of duplication between ClutterGroup and ClutterBox so
this makes the two files diff-able so that new fixes can easily be
ported to both and bug fixes missing in one or the other can be spotted
more easily. This doesn't change the behaviour of either actor; it's
really just a shuffle around of code and normalizes the coding style to
make the files comparable.
This has already uncovered one bug in ClutterBox, and also highlights
a bug in ClutterGroup + many other actors:
1) ClutterGroup::real_foreach was recently changed to use
g_list_foreach instead of manually iterating the child list so it can
safely handle calls like:
clutter_container_foreach (container, clutter_actor_destroy);
ClutterBox is still manually iterating the list.
2) In ClutterGroup we guard _queue_redraw() calls like this:
if (CLUTTER_ACTOR_IS_VISIBLE (container))
clutter_actor_queue_redraw (CLUTTER_ACTOR (container));
In ClutterBox we don't:
I think ClutterBox is correct here because
clutter_actor_queue_redraw already optimizes the case where the
actor's not visible, but it also considers that the actor may be
cloned and so the guard in ClutterGroup could break clones. This
actually highlights a wider clutter bug since the same kinds of
guards can be found in all other clutter actors.
This commit is contained in:
Robert Bragg
parent
34c7611407
commit
4355621aeb
@ -149,7 +149,6 @@ clutter_box_real_foreach (ClutterContainer *container,
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gpointer user_data)
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{
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ClutterBoxPrivate *priv = CLUTTER_BOX (container)->priv;
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GList *l;
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for (l = priv->children; l != NULL; l = l->next)
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(* callback) (l->data, user_data);
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@ -55,13 +55,23 @@
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#include "clutter-container.h"
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#include "clutter-fixed-layout.h"
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#include "clutter-main.h"
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#include "clutter-private.h"
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#include "clutter-debug.h"
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#include "clutter-marshal.h"
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#include "clutter-enum-types.h"
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#include "clutter-marshal.h"
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#include "clutter-private.h"
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#include "cogl/cogl.h"
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#define CLUTTER_GROUP_GET_PRIVATE(obj) \
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(G_TYPE_INSTANCE_GET_PRIVATE ((obj), CLUTTER_TYPE_GROUP, ClutterGroupPrivate))
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struct _ClutterGroupPrivate
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{
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GList *children;
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ClutterLayoutManager *layout;
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};
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enum
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{
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ADD,
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@ -72,43 +82,207 @@ enum
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static void clutter_container_iface_init (ClutterContainerIface *iface);
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G_DEFINE_TYPE_WITH_CODE (ClutterGroup,
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clutter_group,
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CLUTTER_TYPE_ACTOR,
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G_DEFINE_TYPE_WITH_CODE (ClutterGroup, clutter_group, CLUTTER_TYPE_ACTOR,
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G_IMPLEMENT_INTERFACE (CLUTTER_TYPE_CONTAINER,
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clutter_container_iface_init));
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#define CLUTTER_GROUP_GET_PRIVATE(obj) \
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(G_TYPE_INSTANCE_GET_PRIVATE ((obj), CLUTTER_TYPE_GROUP, ClutterGroupPrivate))
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struct _ClutterGroupPrivate
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static gint
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sort_by_depth (gconstpointer a,
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gconstpointer b)
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{
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GList *children;
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gfloat depth_a = clutter_actor_get_depth (CLUTTER_ACTOR(a));
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gfloat depth_b = clutter_actor_get_depth (CLUTTER_ACTOR(b));
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ClutterLayoutManager *layout;
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};
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if (depth_a < depth_b)
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return -1;
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if (depth_a > depth_b)
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return 1;
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return 0;
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}
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static void
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clutter_group_paint (ClutterActor *actor)
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clutter_group_real_add (ClutterContainer *container,
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ClutterActor *actor)
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{
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ClutterGroupPrivate *priv = CLUTTER_GROUP (container)->priv;
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g_object_ref (actor);
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priv->children = g_list_append (priv->children, actor);
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clutter_actor_set_parent (actor, CLUTTER_ACTOR (container));
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/* queue a relayout, to get the correct positioning inside
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* the ::actor-added signal handlers
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*/
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clutter_actor_queue_relayout (CLUTTER_ACTOR (container));
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g_signal_emit_by_name (container, "actor-added", actor);
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clutter_container_sort_depth_order (container);
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g_object_unref (actor);
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}
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static void
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clutter_group_real_remove (ClutterContainer *container,
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ClutterActor *actor)
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{
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ClutterGroupPrivate *priv = CLUTTER_GROUP (container)->priv;
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g_object_ref (actor);
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priv->children = g_list_remove (priv->children, actor);
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clutter_actor_unparent (actor);
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/* queue a relayout, to get the correct positioning inside
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* the ::actor-removed signal handlers
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*/
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clutter_actor_queue_relayout (CLUTTER_ACTOR (container));
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/* at this point, the actor passed to the "actor-removed" signal
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* handlers is not parented anymore to the container but since we
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* are holding a reference on it, it's still valid
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*/
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g_signal_emit_by_name (container, "actor-removed", actor);
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if (CLUTTER_ACTOR_IS_VISIBLE (CLUTTER_ACTOR (container)))
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clutter_actor_queue_redraw (CLUTTER_ACTOR (container));
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g_object_unref (actor);
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}
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static void
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clutter_group_real_foreach (ClutterContainer *container,
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ClutterCallback callback,
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gpointer user_data)
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{
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ClutterGroupPrivate *priv = CLUTTER_GROUP (container)->priv;
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/* Using g_list_foreach instead of iterating the list manually
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because it has better protection against the current node being
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removed. This will happen for example if someone calls
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clutter_container_foreach(container, clutter_actor_destroy) */
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g_list_foreach (priv->children, (GFunc) callback, user_data);
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}
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static void
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clutter_group_real_raise (ClutterContainer *container,
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ClutterActor *actor,
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ClutterActor *sibling)
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{
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ClutterGroupPrivate *priv = CLUTTER_GROUP (container)->priv;
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priv->children = g_list_remove (priv->children, actor);
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/* Raise at the top */
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if (!sibling)
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{
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GList *last_item;
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last_item = g_list_last (priv->children);
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if (last_item)
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sibling = last_item->data;
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priv->children = g_list_append (priv->children, actor);
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}
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else
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{
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gint index_ = g_list_index (priv->children, sibling) + 1;
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priv->children = g_list_insert (priv->children, actor, index_);
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}
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/* set Z ordering a value below, this will then call sort
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* as values are equal ordering shouldn't change but Z
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* values will be correct.
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*
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* FIXME: optimise
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*/
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if (sibling &&
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clutter_actor_get_depth (sibling) != clutter_actor_get_depth (actor))
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{
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clutter_actor_set_depth (actor, clutter_actor_get_depth (sibling));
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}
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if (CLUTTER_ACTOR_IS_VISIBLE (container))
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clutter_actor_queue_redraw (CLUTTER_ACTOR (container));
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}
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static void
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clutter_group_real_lower (ClutterContainer *container,
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ClutterActor *actor,
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ClutterActor *sibling)
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{
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ClutterGroup *self = CLUTTER_GROUP (container);
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ClutterGroupPrivate *priv = self->priv;
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priv->children = g_list_remove (priv->children, actor);
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/* Push to bottom */
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if (!sibling)
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{
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GList *last_item;
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last_item = g_list_first (priv->children);
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if (last_item)
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sibling = last_item->data;
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priv->children = g_list_prepend (priv->children, actor);
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}
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else
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{
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gint index_ = g_list_index (priv->children, sibling);
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priv->children = g_list_insert (priv->children, actor, index_);
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}
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/* See comment in group_raise for this */
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if (sibling &&
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clutter_actor_get_depth (sibling) != clutter_actor_get_depth (actor))
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{
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clutter_actor_set_depth (actor, clutter_actor_get_depth (sibling));
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}
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if (CLUTTER_ACTOR_IS_VISIBLE (container))
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clutter_actor_queue_redraw (CLUTTER_ACTOR (container));
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}
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static void
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clutter_group_real_sort_depth_order (ClutterContainer *container)
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{
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ClutterGroupPrivate *priv = CLUTTER_GROUP (container)->priv;
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priv->children = g_list_sort (priv->children, sort_by_depth);
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if (CLUTTER_ACTOR_IS_VISIBLE (container))
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clutter_actor_queue_redraw (CLUTTER_ACTOR (container));
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}
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static void
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clutter_container_iface_init (ClutterContainerIface *iface)
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{
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iface->add = clutter_group_real_add;
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iface->remove = clutter_group_real_remove;
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iface->foreach = clutter_group_real_foreach;
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iface->raise = clutter_group_real_raise;
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iface->lower = clutter_group_real_lower;
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iface->sort_depth_order = clutter_group_real_sort_depth_order;
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}
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static void
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clutter_group_real_paint (ClutterActor *actor)
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{
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ClutterGroupPrivate *priv = CLUTTER_GROUP (actor)->priv;
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GList *child_item;
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CLUTTER_NOTE (PAINT, "ClutterGroup paint enter '%s'",
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clutter_actor_get_name (actor) ? clutter_actor_get_name (actor)
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: "unknown");
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for (child_item = priv->children;
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child_item != NULL;
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child_item = child_item->next)
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{
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ClutterActor *child = child_item->data;
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g_assert (child != NULL);
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clutter_actor_paint (child);
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}
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g_list_foreach (priv->children, (GFunc) clutter_actor_paint, NULL);
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CLUTTER_NOTE (PAINT, "ClutterGroup paint leave '%s'",
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clutter_actor_get_name (actor) ? clutter_actor_get_name (actor)
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@ -116,72 +290,62 @@ clutter_group_paint (ClutterActor *actor)
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}
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static void
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clutter_group_pick (ClutterActor *actor,
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const ClutterColor *color)
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clutter_group_real_pick (ClutterActor *actor,
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const ClutterColor *pick)
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{
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ClutterGroupPrivate *priv = CLUTTER_GROUP (actor)->priv;
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GList *child_item;
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/* Chain up so we get a bounding box pained (if we are reactive) */
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CLUTTER_ACTOR_CLASS (clutter_group_parent_class)->pick (actor, color);
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CLUTTER_ACTOR_CLASS (clutter_group_parent_class)->pick (actor, pick);
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for (child_item = priv->children;
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child_item != NULL;
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child_item = child_item->next)
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{
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ClutterActor *child = child_item->data;
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g_assert (child != NULL);
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clutter_actor_paint (child);
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}
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g_list_foreach (priv->children, (GFunc) clutter_actor_paint, NULL);
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}
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static void
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clutter_group_get_preferred_width (ClutterActor *self,
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gfloat for_height,
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gfloat *min_width_p,
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gfloat *natural_width_p)
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clutter_group_real_get_preferred_width (ClutterActor *actor,
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gfloat for_height,
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gfloat *min_width,
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gfloat *natural_width)
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{
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ClutterContainer *container = CLUTTER_CONTAINER (self);
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ClutterGroupPrivate *priv = CLUTTER_GROUP (self)->priv;
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ClutterGroupPrivate *priv = CLUTTER_GROUP (actor)->priv;
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clutter_layout_manager_get_preferred_width (priv->layout, container,
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clutter_layout_manager_get_preferred_width (priv->layout,
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CLUTTER_CONTAINER (actor),
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for_height,
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min_width_p,
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natural_width_p);
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min_width, natural_width);
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}
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static void
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clutter_group_get_preferred_height (ClutterActor *self,
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gfloat for_width,
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gfloat *min_height_p,
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gfloat *natural_height_p)
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clutter_group_real_get_preferred_height (ClutterActor *actor,
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gfloat for_width,
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gfloat *min_height,
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gfloat *natural_height)
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{
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ClutterContainer *container = CLUTTER_CONTAINER (self);
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ClutterGroupPrivate *priv = CLUTTER_GROUP (self)->priv;
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ClutterGroupPrivate *priv = CLUTTER_GROUP (actor)->priv;
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clutter_layout_manager_get_preferred_height (priv->layout, container,
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clutter_layout_manager_get_preferred_height (priv->layout,
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CLUTTER_CONTAINER (actor),
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for_width,
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min_height_p,
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natural_height_p);
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min_height, natural_height);
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}
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static void
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clutter_group_allocate (ClutterActor *self,
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const ClutterActorBox *box,
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ClutterAllocationFlags flags)
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clutter_group_real_allocate (ClutterActor *actor,
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const ClutterActorBox *allocation,
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ClutterAllocationFlags flags)
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{
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ClutterContainer *container = CLUTTER_CONTAINER (self);
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ClutterGroupPrivate *priv = CLUTTER_GROUP (self)->priv;
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ClutterGroupPrivate *priv = CLUTTER_GROUP (actor)->priv;
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ClutterActorClass *klass;
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/* chain up to set actor->allocation */
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CLUTTER_ACTOR_CLASS (clutter_group_parent_class)->allocate (self, box, flags);
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klass = CLUTTER_ACTOR_CLASS (clutter_group_parent_class);
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klass->allocate (actor, allocation, flags);
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if (priv->children == NULL)
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return;
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clutter_layout_manager_allocate (priv->layout, container, box, flags);
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clutter_layout_manager_allocate (priv->layout,
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CLUTTER_CONTAINER (actor),
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allocation, flags);
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}
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static void
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@ -225,223 +389,27 @@ clutter_group_real_hide_all (ClutterActor *actor)
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NULL);
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}
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static void
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clutter_group_real_add (ClutterContainer *container,
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ClutterActor *actor)
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{
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ClutterGroup *group = CLUTTER_GROUP (container);
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ClutterGroupPrivate *priv = group->priv;
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g_object_ref (actor);
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priv->children = g_list_append (priv->children, actor);
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clutter_actor_set_parent (actor, CLUTTER_ACTOR (group));
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/* queue a relayout, to get the correct positioning inside
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* the ::actor-added signal handlers
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*/
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clutter_actor_queue_relayout (CLUTTER_ACTOR (group));
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g_signal_emit_by_name (container, "actor-added", actor);
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clutter_container_sort_depth_order (container);
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g_object_unref (actor);
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}
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static void
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clutter_group_real_remove (ClutterContainer *container,
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ClutterActor *actor)
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{
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ClutterGroup *group = CLUTTER_GROUP (container);
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ClutterGroupPrivate *priv = group->priv;
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g_object_ref (actor);
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priv->children = g_list_remove (priv->children, actor);
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clutter_actor_unparent (actor);
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/* queue a relayout, to get the correct positioning inside
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* the ::actor-removed signal handlers
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*/
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clutter_actor_queue_relayout (CLUTTER_ACTOR (group));
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/* at this point, the actor passed to the "actor-removed" signal
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* handlers is not parented anymore to the container but since we
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* are holding a reference on it, it's still valid
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*/
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g_signal_emit_by_name (container, "actor-removed", actor);
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if (CLUTTER_ACTOR_IS_VISIBLE (CLUTTER_ACTOR (group)))
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clutter_actor_queue_redraw (CLUTTER_ACTOR (group));
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g_object_unref (actor);
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}
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static void
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clutter_group_real_foreach (ClutterContainer *container,
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ClutterCallback callback,
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gpointer user_data)
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{
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ClutterGroup *group = CLUTTER_GROUP (container);
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ClutterGroupPrivate *priv = group->priv;
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/* Using g_list_foreach instead of iterating the list manually
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because it has better protection against the current node being
|
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removed. This will happen for example if someone calls
|
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clutter_container_foreach(container, clutter_actor_destroy) */
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g_list_foreach (priv->children, (GFunc) callback, user_data);
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}
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static void
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clutter_group_real_raise (ClutterContainer *container,
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ClutterActor *actor,
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ClutterActor *sibling)
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{
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ClutterGroup *self = CLUTTER_GROUP (container);
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ClutterGroupPrivate *priv = self->priv;
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priv->children = g_list_remove (priv->children, actor);
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/* Raise at the top */
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if (!sibling)
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{
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GList *last_item;
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last_item = g_list_last (priv->children);
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if (last_item)
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sibling = last_item->data;
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priv->children = g_list_append (priv->children, actor);
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}
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else
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{
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gint pos;
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pos = g_list_index (priv->children, sibling) + 1;
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priv->children = g_list_insert (priv->children, actor, pos);
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}
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|
||||
/* set Z ordering a value below, this will then call sort
|
||||
* as values are equal ordering shouldn't change but Z
|
||||
* values will be correct.
|
||||
*
|
||||
* FIXME: optimise
|
||||
*/
|
||||
if (sibling &&
|
||||
clutter_actor_get_depth (sibling) != clutter_actor_get_depth (actor))
|
||||
{
|
||||
clutter_actor_set_depth (actor, clutter_actor_get_depth (sibling));
|
||||
}
|
||||
|
||||
if (CLUTTER_ACTOR_IS_VISIBLE (container))
|
||||
clutter_actor_queue_redraw (CLUTTER_ACTOR (container));
|
||||
}
|
||||
|
||||
static void
|
||||
clutter_group_real_lower (ClutterContainer *container,
|
||||
ClutterActor *actor,
|
||||
ClutterActor *sibling)
|
||||
{
|
||||
ClutterGroup *self = CLUTTER_GROUP (container);
|
||||
ClutterGroupPrivate *priv = self->priv;
|
||||
|
||||
priv->children = g_list_remove (priv->children, actor);
|
||||
|
||||
/* Push to bottom */
|
||||
if (!sibling)
|
||||
{
|
||||
GList *last_item;
|
||||
|
||||
last_item = g_list_first (priv->children);
|
||||
|
||||
if (last_item)
|
||||
sibling = last_item->data;
|
||||
|
||||
priv->children = g_list_prepend (priv->children, actor);
|
||||
}
|
||||
else
|
||||
{
|
||||
gint pos;
|
||||
|
||||
pos = g_list_index (priv->children, sibling);
|
||||
|
||||
priv->children = g_list_insert (priv->children, actor, pos);
|
||||
}
|
||||
|
||||
/* See comment in group_raise for this */
|
||||
if (sibling &&
|
||||
clutter_actor_get_depth (sibling) != clutter_actor_get_depth (actor))
|
||||
{
|
||||
clutter_actor_set_depth (actor, clutter_actor_get_depth (sibling));
|
||||
}
|
||||
|
||||
if (CLUTTER_ACTOR_IS_VISIBLE (container))
|
||||
clutter_actor_queue_redraw (CLUTTER_ACTOR (container));
|
||||
}
|
||||
|
||||
static gint
|
||||
sort_z_order (gconstpointer a,
|
||||
gconstpointer b)
|
||||
{
|
||||
float depth_a, depth_b;
|
||||
|
||||
depth_a = clutter_actor_get_depth (CLUTTER_ACTOR(a));
|
||||
depth_b = clutter_actor_get_depth (CLUTTER_ACTOR(b));
|
||||
|
||||
if (depth_a < depth_b)
|
||||
return -1;
|
||||
|
||||
if (depth_a > depth_b)
|
||||
return 1;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void
|
||||
clutter_group_real_sort_depth_order (ClutterContainer *container)
|
||||
{
|
||||
ClutterGroup *self = CLUTTER_GROUP (container);
|
||||
ClutterGroupPrivate *priv = self->priv;
|
||||
|
||||
priv->children = g_list_sort (priv->children, sort_z_order);
|
||||
|
||||
if (CLUTTER_ACTOR_IS_VISIBLE (self))
|
||||
clutter_actor_queue_redraw (CLUTTER_ACTOR (self));
|
||||
|
||||
}
|
||||
|
||||
static void
|
||||
clutter_container_iface_init (ClutterContainerIface *iface)
|
||||
{
|
||||
iface->add = clutter_group_real_add;
|
||||
iface->remove = clutter_group_real_remove;
|
||||
iface->foreach = clutter_group_real_foreach;
|
||||
iface->raise = clutter_group_real_raise;
|
||||
iface->lower = clutter_group_real_lower;
|
||||
iface->sort_depth_order = clutter_group_real_sort_depth_order;
|
||||
}
|
||||
|
||||
static void
|
||||
clutter_group_class_init (ClutterGroupClass *klass)
|
||||
{
|
||||
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
||||
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
|
||||
ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
|
||||
|
||||
g_type_class_add_private (object_class, sizeof (ClutterGroupPrivate));
|
||||
g_type_class_add_private (klass, sizeof (ClutterGroupPrivate));
|
||||
|
||||
object_class->dispose = clutter_group_dispose;
|
||||
actor_class->get_preferred_width = clutter_group_real_get_preferred_width;
|
||||
actor_class->get_preferred_height = clutter_group_real_get_preferred_height;
|
||||
actor_class->allocate = clutter_group_real_allocate;
|
||||
actor_class->paint = clutter_group_real_paint;
|
||||
actor_class->pick = clutter_group_real_pick;
|
||||
actor_class->show_all = clutter_group_real_show_all;
|
||||
actor_class->hide_all = clutter_group_real_hide_all;
|
||||
|
||||
actor_class->paint = clutter_group_paint;
|
||||
actor_class->pick = clutter_group_pick;
|
||||
actor_class->show_all = clutter_group_real_show_all;
|
||||
actor_class->hide_all = clutter_group_real_hide_all;
|
||||
gobject_class->dispose = clutter_group_dispose;
|
||||
|
||||
actor_class->get_preferred_width = clutter_group_get_preferred_width;
|
||||
actor_class->get_preferred_height = clutter_group_get_preferred_height;
|
||||
actor_class->allocate = clutter_group_allocate;
|
||||
}
|
||||
|
||||
static void
|
||||
|
||||
Loading…
Reference in New Issue
Block a user