c444447cd3
Other frameworks expose the same functionality as "auto-reverse", probably to match the cassette tape player. It actually makes sense for Clutter to follow suit.
70 lines
1.9 KiB
C
70 lines
1.9 KiB
C
#include <stdlib.h>
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#include <clutter/clutter.h>
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static const ClutterColor stage_color = { 0x33, 0x33, 0x55, 0xff };
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static const ClutterColor red_color = { 0xff, 0x00, 0x00, 0xff };
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typedef struct
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{
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ClutterActor *actor;
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ClutterTimeline *timeline;
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} State;
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static gboolean
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key_pressed_cb (ClutterActor *actor,
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ClutterEvent *event,
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gpointer user_data)
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{
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State *state = (State *) user_data;
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/* only start animating if actor isn't animating already */
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if (clutter_actor_get_animation (state->actor) == NULL)
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clutter_actor_animate_with_timeline (state->actor,
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CLUTTER_LINEAR,
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state->timeline,
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"x", 50.0,
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NULL);
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return TRUE;
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}
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int
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main (int argc,
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char *argv[])
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{
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State *state = g_new0 (State, 1);
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ClutterActor *stage;
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clutter_init (&argc, &argv);
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stage = clutter_stage_get_default ();
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clutter_actor_set_size (stage, 300, 200);
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clutter_stage_set_color (CLUTTER_STAGE (stage), &stage_color);
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g_signal_connect (stage, "destroy", G_CALLBACK (clutter_main_quit), NULL);
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state->actor = clutter_rectangle_new_with_color (&red_color);
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clutter_actor_set_size (state->actor, 100, 100);
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clutter_actor_set_position (state->actor, 150, 50);
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state->timeline = clutter_timeline_new (1000);
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clutter_timeline_set_loop (state->timeline, TRUE);
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clutter_timeline_set_auto_reverse (state->timeline, TRUE);
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g_signal_connect (stage,
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"key-press-event",
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G_CALLBACK (key_pressed_cb),
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state);
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clutter_container_add_actor (CLUTTER_CONTAINER (stage), state->actor);
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clutter_actor_show (stage);
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clutter_main ();
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g_object_unref (state->timeline);
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g_free (state);
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return EXIT_SUCCESS;
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}
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