0d8c730558
Added code examples for creating a looped animation with each of the animation approaches (implicit, ClutterAnimation, ClutterState).
87 lines
2.3 KiB
C
87 lines
2.3 KiB
C
#include <stdlib.h>
|
|
#include <clutter/clutter.h>
|
|
|
|
static const ClutterColor stage_color = { 0x33, 0x33, 0x55, 0xff };
|
|
static const ClutterColor red_color = { 0xff, 0x00, 0x00, 0xff };
|
|
|
|
typedef struct
|
|
{
|
|
ClutterActor *actor;
|
|
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,
|
|
gpointer user_data)
|
|
{
|
|
State *state = (State *) user_data;
|
|
|
|
/* only start animating if actor isn't animating already */
|
|
if (clutter_actor_get_animation (state->actor) == NULL)
|
|
clutter_actor_animate_with_timeline (state->actor,
|
|
CLUTTER_LINEAR,
|
|
state->timeline,
|
|
"x", 50.0,
|
|
NULL);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
int
|
|
main (int argc,
|
|
char *argv[])
|
|
{
|
|
State *state = g_new0 (State, 1);
|
|
|
|
ClutterActor *stage;
|
|
|
|
clutter_init (&argc, &argv);
|
|
|
|
stage = clutter_stage_get_default ();
|
|
clutter_actor_set_size (stage, 300, 200);
|
|
clutter_stage_set_color (CLUTTER_STAGE (stage), &stage_color);
|
|
g_signal_connect (stage, "destroy", G_CALLBACK (clutter_main_quit), NULL);
|
|
|
|
state->actor = clutter_rectangle_new_with_color (&red_color);
|
|
clutter_actor_set_size (state->actor, 100, 100);
|
|
clutter_actor_set_position (state->actor, 150, 50);
|
|
|
|
state->timeline = clutter_timeline_new (1000);
|
|
clutter_timeline_set_loop (state->timeline, TRUE);
|
|
|
|
g_signal_connect (stage,
|
|
"key-press-event",
|
|
G_CALLBACK (key_pressed_cb),
|
|
state);
|
|
|
|
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);
|
|
|
|
clutter_main ();
|
|
|
|
g_object_unref (state->timeline);
|
|
g_free (state);
|
|
|
|
return EXIT_SUCCESS;
|
|
}
|