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cookbook: Use new API to reverse timeline

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clutter_timeline_set_reverse() can be used to
automatically reverse a timeline's direction each time
it completes, so use that in looping animation recipe and
examples.
This commit is contained in:
Elliot Smith
2010-11-30 16:52:01 +00:00
parent 4f17bf3bcc
commit 50849ac1fd
2 changed files with 19 additions and 30 deletions
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24
doc/cookbook/examples/animations-looping-implicit.c
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@ -10,20 +10,6 @@ typedef struct
ClutterTimeline *timeline;
} State;
static void
invert_timeline_cb (ClutterTimeline *timeline,
gpointer user_data)
{
ClutterTimelineDirection direction = clutter_timeline_get_direction (timeline);
if (direction == CLUTTER_TIMELINE_FORWARD)
direction = CLUTTER_TIMELINE_BACKWARD;
else
direction = CLUTTER_TIMELINE_FORWARD;
clutter_timeline_set_direction (timeline, direction);
}
static gboolean
key_pressed_cb (ClutterActor *actor,
ClutterEvent *event,
@ -63,21 +49,13 @@ main (int argc,
state->timeline = clutter_timeline_new (1000);
clutter_timeline_set_loop (state->timeline, TRUE);
clutter_timeline_set_reverse (state->timeline, TRUE);
g_signal_connect (stage,
"key-press-event",
G_CALLBACK (key_pressed_cb),
state);
/* the animation will not emit a "completed" signal,
* as it is set to loop; but the timeline emits "completed"
* at the end of each iteration of the loop
*/
g_signal_connect (state->timeline,
"completed",
G_CALLBACK (invert_timeline_cb),
NULL);
clutter_container_add_actor (CLUTTER_CONTAINER (stage), state->actor);
clutter_actor_show (stage);