mutter/doc/cookbook/examples/animations-reuse.c
Elliot Smith d4190cbf8c cookbook: Refactored reusable animation example
Extracted the animation into its own JSON definition,
then create a new script and get the animation each
time a rectangle is clicked.

Removes the need to reparent onto the background and
copy property values to the rectangle after the animation,
and generally much cleaner.
2010-09-13 12:25:47 +01:00

94 lines
2.4 KiB
C

#include <stdlib.h>
#include <clutter/clutter.h>
#define UI_FILE "animations-reuse-ui.json"
#define ANIMATION_FILE "animations-reuse-animation.json"
static gboolean
_load_script (ClutterScript *script,
gchar *filename)
{
GError *error = NULL;
clutter_script_load_from_file (script, filename, &error);
if (error != NULL)
{
g_critical ("Error loading ClutterScript file %s\n%s", filename, error->message);
g_error_free (error);
exit (EXIT_FAILURE);
}
return TRUE;
}
gboolean
foo_button_pressed_cb (ClutterActor *actor,
ClutterEvent *event,
gpointer user_data)
{
ClutterScript *ui = CLUTTER_SCRIPT (user_data);
ClutterStage *stage = CLUTTER_STAGE (clutter_script_get_object (ui, "stage"));
ClutterScript *script = clutter_script_new ();
_load_script (script, ANIMATION_FILE);
ClutterAnimator *bounce;
ClutterActor *rig;
ClutterTimeline *bounce_timeline;
clutter_script_get_objects (script,
"bounce_timeline", &bounce_timeline,
"rig", &rig,
"bounce", &bounce,
NULL);
/* remove the button press handler */
g_signal_handlers_disconnect_matched (actor,
G_SIGNAL_MATCH_FUNC,
0,
0,
NULL,
foo_button_pressed_cb,
NULL);
/* add a handler to clean up when the animation completes */
g_signal_connect_swapped (bounce_timeline,
"completed",
G_CALLBACK (g_object_unref),
script);
clutter_container_add_actor (CLUTTER_CONTAINER (stage), rig);
clutter_actor_reparent (actor, rig);
clutter_animator_start (bounce);
return TRUE;
}
int
main (int argc, char *argv[])
{
clutter_init (&argc, &argv);
ClutterScript *script = clutter_script_new ();
_load_script (script, UI_FILE);
clutter_script_connect_signals (script, script);
ClutterActor *stage;
clutter_script_get_objects (script,
"stage", &stage,
NULL);
clutter_actor_show (stage);
clutter_main ();
g_object_unref (script);
return EXIT_SUCCESS;
}