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flow-layout: Implement layout animations

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Allow to animate the child allocation using the ClutterLayoutManager
animation API

https://bugzilla.gnome.org/show_bug.cgi?id=676827
This commit is contained in:
Bastian Winkler 2012-05-24 16:06:31 +02:00
parent 03ec016faa
commit 320fb156b4
1 changed files with 20 additions and 0 deletions
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20
clutter/clutter-flow-layout.c
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@ -568,6 +568,9 @@ clutter_flow_layout_allocate (ClutterLayoutManager *manager,
gint line_item_count;
gint items_per_line;
gint line_index;
gboolean use_animations;
ClutterAnimationMode easing_mode;
guint easing_duration, easing_delay;
actor = CLUTTER_ACTOR (container);
if (clutter_actor_get_n_children (actor) == 0)
@ -600,6 +603,11 @@ clutter_flow_layout_allocate (ClutterLayoutManager *manager,
line_item_count = 0;
line_index = 0;
use_animations = clutter_layout_manager_get_easing_state (manager,
&easing_mode,
&easing_duration,
&easing_delay);
clutter_actor_iter_init (&iter, actor);
while (clutter_actor_iter_next (&iter, &child))
{
@ -701,8 +709,20 @@ clutter_flow_layout_allocate (ClutterLayoutManager *manager,
child_alloc.y1 = ceil (item_y);
child_alloc.x2 = ceil (child_alloc.x1 + item_width);
child_alloc.y2 = ceil (child_alloc.y1 + item_height);
if (use_animations)
{
clutter_actor_save_easing_state (child);
clutter_actor_set_easing_mode (child, easing_mode);
clutter_actor_set_easing_duration (child, easing_duration);
clutter_actor_set_easing_delay (child, easing_delay);
}
clutter_actor_allocate (child, &child_alloc, flags);
if (use_animations)
clutter_actor_restore_easing_state (child);
if (priv->orientation == CLUTTER_FLOW_HORIZONTAL)
item_x = new_x;
else