mirror of
https://github.com/brl/mutter.git
synced 2024-12-26 04:42:14 +00:00
aece642adb
Make sure users get the idea that clutter_init()
has a return value that needs to be checked.
These were fixed via sed magic:
sed -i -s -e "s/clutter_init (.*)/\
if (& != CLUTTER_INIT_SUCCESS)\n return 1/"\
doc/*/*/*.{c,xml} doc/*/*.xml
http://bugzilla.clutter-project.org/show_bug.cgi?id=2574
106 lines
3.0 KiB
C
106 lines
3.0 KiB
C
#include <stdlib.h>
|
|
#include <clutter/clutter.h>
|
|
|
|
typedef struct {
|
|
ClutterActor *red;
|
|
ClutterActor *green;
|
|
ClutterTimeline *timeline;
|
|
} State;
|
|
|
|
static const ClutterColor stage_color = { 0x33, 0x33, 0x55, 0xff };
|
|
static const ClutterColor red_color = { 0xff, 0x00, 0x00, 0xff };
|
|
static const ClutterColor green_color = { 0x00, 0xff, 0x00, 0xff };
|
|
|
|
static void
|
|
reverse_timeline (ClutterTimeline *timeline)
|
|
{
|
|
ClutterTimelineDirection dir = clutter_timeline_get_direction (timeline);
|
|
|
|
if (dir == CLUTTER_TIMELINE_FORWARD)
|
|
dir = CLUTTER_TIMELINE_BACKWARD;
|
|
else
|
|
dir = CLUTTER_TIMELINE_FORWARD;
|
|
|
|
clutter_timeline_set_direction (timeline, dir);
|
|
}
|
|
|
|
/* a key press either starts the timeline or reverses it */
|
|
static gboolean
|
|
key_pressed_cb (ClutterActor *actor,
|
|
ClutterEvent *event,
|
|
gpointer user_data)
|
|
{
|
|
State *state = (State *) user_data;
|
|
|
|
if (clutter_timeline_is_playing (state->timeline))
|
|
reverse_timeline (state->timeline);
|
|
else
|
|
clutter_timeline_start (state->timeline);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
int
|
|
main (int argc,
|
|
char *argv[])
|
|
{
|
|
State *state = g_new0 (State, 1);
|
|
|
|
ClutterActor *stage;
|
|
ClutterAnimator *animator;
|
|
|
|
if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
|
|
return 1;
|
|
|
|
stage = clutter_stage_new ();
|
|
clutter_actor_set_size (stage, 400, 400);
|
|
clutter_stage_set_color (CLUTTER_STAGE (stage), &stage_color);
|
|
g_signal_connect (stage, "destroy", G_CALLBACK (clutter_main_quit), NULL);
|
|
|
|
state->red = clutter_rectangle_new_with_color (&red_color);
|
|
clutter_actor_set_size (state->red, 100, 100);
|
|
clutter_actor_set_position (state->red, 300, 300);
|
|
|
|
state->green = clutter_rectangle_new_with_color (&green_color);
|
|
clutter_actor_set_size (state->green, 100, 100);
|
|
clutter_actor_set_position (state->green, 0, 0);
|
|
|
|
animator = clutter_animator_new ();
|
|
clutter_animator_set_duration (animator, 1000);
|
|
|
|
clutter_animator_set (animator,
|
|
state->red, "x", CLUTTER_LINEAR, 0.0, 300.0,
|
|
state->red, "y", CLUTTER_LINEAR, 0.0, 300.0,
|
|
state->red, "x", CLUTTER_LINEAR, 1.0, 0.0,
|
|
state->red, "y", CLUTTER_EASE_IN_QUINT, 1.0, 0.0,
|
|
NULL);
|
|
|
|
clutter_animator_set (animator,
|
|
state->green, "x", CLUTTER_LINEAR, 0.0, 0.0,
|
|
state->green, "y", CLUTTER_LINEAR, 0.0, 0.0,
|
|
state->green, "x", CLUTTER_LINEAR, 1.0, 300.0,
|
|
state->green, "y", CLUTTER_EASE_IN_QUINT, 1.0, 300.0,
|
|
NULL);
|
|
|
|
state->timeline = clutter_animator_get_timeline (animator);
|
|
|
|
clutter_timeline_set_auto_reverse (state->timeline, TRUE);
|
|
|
|
g_signal_connect (stage,
|
|
"key-press-event",
|
|
G_CALLBACK (key_pressed_cb),
|
|
state);
|
|
|
|
clutter_container_add (CLUTTER_CONTAINER (stage), state->red, state->green, NULL);
|
|
|
|
clutter_actor_show (stage);
|
|
|
|
clutter_main ();
|
|
|
|
g_object_unref (animator);
|
|
|
|
g_free (state);
|
|
|
|
return EXIT_SUCCESS;
|
|
}
|