group: Restore previous implementation

Making Group just a proxy to Actor broke some behaviour that application
and toolkit code was relying on. Let's keep Group around to fight
another day.

This commit fixes gnome-shell as far as I can test it.
This commit is contained in:
Emmanuele Bassi 2012-01-20 16:00:19 +00:00
parent 3ff502fbb2
commit 7d7d753a49
2 changed files with 341 additions and 38 deletions

View File

@ -10438,12 +10438,12 @@ clutter_actor_reparent (ClutterActor *self,
/* we emit the ::parent-set signal once */
g_signal_emit (self, actor_signals[PARENT_SET], 0, old_parent);
g_object_unref (self);
CLUTTER_UNSET_PRIVATE_FLAGS (self, CLUTTER_IN_REPARENT);
/* the IN_REPARENT flag suspends state updates */
clutter_actor_update_map_state (self, MAP_STATE_CHECK);
g_object_unref (self);
}
}

View File

@ -53,6 +53,7 @@
#define CLUTTER_DISABLE_DEPRECATION_WARNINGS
#include "clutter-group.h"
#include "clutter-actor.h"
#include "clutter-container.h"
#include "clutter-fixed-layout.h"
#include "clutter-main.h"
@ -63,57 +64,344 @@
#include "cogl/cogl.h"
#define CLUTTER_GROUP_GET_PRIVATE(obj) \
(G_TYPE_INSTANCE_GET_PRIVATE ((obj), CLUTTER_TYPE_GROUP, ClutterGroupPrivate))
#define CLUTTER_GROUP_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), CLUTTER_TYPE_GROUP, ClutterGroupPrivate))
G_DEFINE_TYPE (ClutterGroup, clutter_group, CLUTTER_TYPE_ACTOR)
struct _ClutterGroupPrivate
{
GList *children;
ClutterLayoutManager *layout;
};
enum
{
ADD,
REMOVE,
LAST_SIGNAL
};
static void clutter_container_iface_init (ClutterContainerIface *iface);
G_DEFINE_TYPE_WITH_CODE (ClutterGroup, clutter_group, CLUTTER_TYPE_ACTOR,
G_IMPLEMENT_INTERFACE (CLUTTER_TYPE_CONTAINER,
clutter_container_iface_init));
static gint
sort_by_depth (gconstpointer a,
gconstpointer b)
{
gfloat depth_a = clutter_actor_get_depth (CLUTTER_ACTOR(a));
gfloat 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_add (ClutterContainer *container,
ClutterActor *actor)
{
ClutterGroupPrivate *priv = CLUTTER_GROUP (container)->priv;
g_object_ref (actor);
priv->children = g_list_append (priv->children, actor);
clutter_actor_set_parent (actor, CLUTTER_ACTOR (container));
/* queue a relayout, to get the correct positioning inside
* the ::actor-added signal handlers
*/
clutter_actor_queue_relayout (CLUTTER_ACTOR (container));
g_signal_emit_by_name (container, "actor-added", actor);
clutter_container_sort_depth_order (container);
g_object_unref (actor);
}
static void
clutter_group_real_remove (ClutterContainer *container,
ClutterActor *actor)
{
ClutterGroupPrivate *priv = CLUTTER_GROUP (container)->priv;
g_object_ref (actor);
priv->children = g_list_remove (priv->children, actor);
clutter_actor_unparent (actor);
/* queue a relayout, to get the correct positioning inside
* the ::actor-removed signal handlers
*/
clutter_actor_queue_relayout (CLUTTER_ACTOR (container));
/* at this point, the actor passed to the "actor-removed" signal
* handlers is not parented anymore to the container but since we
* are holding a reference on it, it's still valid
*/
g_signal_emit_by_name (container, "actor-removed", actor);
clutter_actor_queue_redraw (CLUTTER_ACTOR (container));
g_object_unref (actor);
}
static void
clutter_group_real_foreach (ClutterContainer *container,
ClutterCallback callback,
gpointer user_data)
{
ClutterGroupPrivate *priv = CLUTTER_GROUP (container)->priv;
/* Using g_list_foreach instead of iterating the list manually
because it has better protection against the current node being
removed. This will happen for example if someone calls
clutter_container_foreach(container, clutter_actor_destroy) */
g_list_foreach (priv->children, (GFunc) callback, user_data);
}
static void
clutter_group_real_raise (ClutterContainer *container,
ClutterActor *actor,
ClutterActor *sibling)
{
ClutterGroupPrivate *priv = CLUTTER_GROUP (container)->priv;
priv->children = g_list_remove (priv->children, actor);
/* Raise at the top */
if (!sibling)
{
GList *last_item;
last_item = g_list_last (priv->children);
if (last_item)
sibling = last_item->data;
priv->children = g_list_append (priv->children, actor);
}
else
{
gint index_ = g_list_index (priv->children, sibling) + 1;
priv->children = g_list_insert (priv->children, actor, index_);
}
/* 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));
}
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 index_ = g_list_index (priv->children, sibling);
priv->children = g_list_insert (priv->children, actor, index_);
}
/* 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));
}
clutter_actor_queue_redraw (CLUTTER_ACTOR (container));
}
static void
clutter_group_real_sort_depth_order (ClutterContainer *container)
{
ClutterGroupPrivate *priv = CLUTTER_GROUP (container)->priv;
priv->children = g_list_sort (priv->children, sort_by_depth);
clutter_actor_queue_redraw (CLUTTER_ACTOR (container));
}
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_real_paint (ClutterActor *actor)
{
ClutterGroupPrivate *priv = CLUTTER_GROUP (actor)->priv;
CLUTTER_NOTE (PAINT, "ClutterGroup paint enter '%s'",
clutter_actor_get_name (actor) ? clutter_actor_get_name (actor)
: "unknown");
g_list_foreach (priv->children, (GFunc) clutter_actor_paint, NULL);
CLUTTER_NOTE (PAINT, "ClutterGroup paint leave '%s'",
clutter_actor_get_name (actor) ? clutter_actor_get_name (actor)
: "unknown");
}
static void
clutter_group_real_pick (ClutterActor *actor,
const ClutterColor *pick)
{
ClutterGroupPrivate *priv = CLUTTER_GROUP (actor)->priv;
/* Chain up so we get a bounding box pained (if we are reactive) */
CLUTTER_ACTOR_CLASS (clutter_group_parent_class)->pick (actor, pick);
g_list_foreach (priv->children, (GFunc) clutter_actor_paint, NULL);
}
static void
clutter_group_real_get_preferred_width (ClutterActor *actor,
gfloat for_height,
gfloat *min_width,
gfloat *natural_width)
{
ClutterGroupPrivate *priv = CLUTTER_GROUP (actor)->priv;
clutter_layout_manager_get_preferred_width (priv->layout,
CLUTTER_CONTAINER (actor),
for_height,
min_width, natural_width);
}
static void
clutter_group_real_get_preferred_height (ClutterActor *actor,
gfloat for_width,
gfloat *min_height,
gfloat *natural_height)
{
ClutterGroupPrivate *priv = CLUTTER_GROUP (actor)->priv;
clutter_layout_manager_get_preferred_height (priv->layout,
CLUTTER_CONTAINER (actor),
for_width,
min_height, natural_height);
}
static void
clutter_group_real_allocate (ClutterActor *actor,
const ClutterActorBox *allocation,
ClutterAllocationFlags flags)
{
ClutterGroupPrivate *priv = CLUTTER_GROUP (actor)->priv;
ClutterActorClass *klass;
klass = CLUTTER_ACTOR_CLASS (clutter_group_parent_class);
klass->allocate (actor, allocation, flags);
if (priv->children == NULL)
return;
clutter_layout_manager_allocate (priv->layout,
CLUTTER_CONTAINER (actor),
allocation, flags);
}
static void
clutter_group_dispose (GObject *object)
{
ClutterGroup *self = CLUTTER_GROUP (object);
ClutterGroupPrivate *priv = self->priv;
/* Note: we are careful to consider that destroying children could
* have the side-effect of destroying other children so
* priv->children may be modified during clutter_actor_destroy. */
while (priv->children != NULL)
{
ClutterActor *child = priv->children->data;
priv->children = g_list_delete_link (priv->children, priv->children);
clutter_actor_destroy (child);
}
if (priv->layout)
{
clutter_layout_manager_set_container (priv->layout, NULL);
g_object_unref (priv->layout);
priv->layout = NULL;
}
G_OBJECT_CLASS (clutter_group_parent_class)->dispose (object);
}
static void
clutter_group_real_show_all (ClutterActor *actor)
{
ClutterActor *iter;
for (iter = clutter_actor_get_first_child (actor);
iter != NULL;
iter = clutter_actor_get_next_sibling (iter))
clutter_actor_show (iter);
clutter_container_foreach (CLUTTER_CONTAINER (actor),
CLUTTER_CALLBACK (clutter_actor_show),
NULL);
clutter_actor_show (actor);
}
static void
clutter_group_real_hide_all (ClutterActor *actor)
{
ClutterActor *iter;
clutter_actor_hide (actor);
for (iter = clutter_actor_get_first_child (actor);
iter != NULL;
iter = clutter_actor_get_next_sibling (iter))
clutter_actor_hide (iter);
clutter_container_foreach (CLUTTER_CONTAINER (actor),
CLUTTER_CALLBACK (clutter_actor_hide),
NULL);
}
static gboolean
clutter_group_get_paint_volume (ClutterActor *actor,
ClutterPaintVolume *volume)
clutter_group_real_get_paint_volume (ClutterActor *actor,
ClutterPaintVolume *volume)
{
ClutterActor *child;
gboolean retval;
ClutterGroupPrivate *priv = CLUTTER_GROUP (actor)->priv;
GList *l;
/* bail out early if we don't have any child */
if (clutter_actor_get_n_children (actor) == 0)
return FALSE;
if (priv->children == NULL)
return TRUE;
retval = TRUE;
/* otherwise, union the paint volumes of our children, in case
* any one of them decides to paint outside the parent's allocation
*/
for (child = clutter_actor_get_first_child (actor);
child != NULL;
child = clutter_actor_get_next_sibling (child))
for (l = priv->children; l != NULL; l = l->next)
{
ClutterActor *child = l->data;
const ClutterPaintVolume *child_volume;
/* This gets the paint volume of the child transformed into the
@ -125,24 +413,39 @@ clutter_group_get_paint_volume (ClutterActor *actor,
clutter_paint_volume_union (volume, child_volume);
}
return retval;
return TRUE;
}
static void
clutter_group_class_init (ClutterGroupClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
g_type_class_add_private (klass, sizeof (ClutterGroupPrivate));
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->get_paint_volume = clutter_group_get_paint_volume;
actor_class->get_paint_volume = clutter_group_real_get_paint_volume;
gobject_class->dispose = clutter_group_dispose;
}
static void
clutter_group_init (ClutterGroup *self)
{
clutter_actor_set_layout_manager (CLUTTER_ACTOR (self),
clutter_fixed_layout_new ());
self->priv = CLUTTER_GROUP_GET_PRIVATE (self);
self->priv->layout = clutter_fixed_layout_new ();
g_object_ref_sink (self->priv->layout);
clutter_layout_manager_set_container (self->priv->layout,
CLUTTER_CONTAINER (self));
}
/**