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
63 lines
1.9 KiB
C
63 lines
1.9 KiB
C
#include <stdlib.h>
|
|
#include <clutter/clutter.h>
|
|
|
|
int
|
|
main (int argc,
|
|
char *argv[])
|
|
{
|
|
ClutterActor *stage;
|
|
ClutterPath *path;
|
|
ClutterConstraint *constraint;
|
|
ClutterActor *rectangle;
|
|
ClutterTimeline *timeline;
|
|
|
|
const ClutterColor *stage_color = clutter_color_new (51, 51, 85, 255);
|
|
const ClutterColor *red_color = clutter_color_new (255, 0, 0, 255);
|
|
|
|
if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
|
|
return 1;
|
|
|
|
stage = clutter_stage_new ();
|
|
clutter_actor_set_size (stage, 360, 300);
|
|
clutter_stage_set_color (CLUTTER_STAGE (stage), stage_color);
|
|
g_signal_connect (stage, "destroy", G_CALLBACK (clutter_main_quit), NULL);
|
|
|
|
/* create the path */
|
|
path = clutter_path_new ();
|
|
clutter_path_add_move_to (path, 30, 60);
|
|
|
|
/* add a curve round to the top-right of the stage */
|
|
clutter_path_add_rel_curve_to (path,
|
|
120, 180,
|
|
180, 120,
|
|
240, 0);
|
|
|
|
/* create a constraint based on the path */
|
|
constraint = clutter_path_constraint_new (path, 0.0);
|
|
|
|
/* put a rectangle at the start of the path */
|
|
rectangle = clutter_rectangle_new_with_color (red_color);
|
|
clutter_actor_set_size (rectangle, 60, 60);
|
|
|
|
/* add the constraint to the rectangle */
|
|
clutter_actor_add_constraint_with_name (rectangle, "path", constraint);
|
|
|
|
/* add the rectangle to the stage */
|
|
clutter_container_add_actor (CLUTTER_CONTAINER (stage), rectangle);
|
|
|
|
/* set up the timeline */
|
|
timeline = clutter_timeline_new (1000);
|
|
clutter_timeline_set_loop (timeline, TRUE);
|
|
clutter_timeline_set_auto_reverse (timeline, TRUE);
|
|
|
|
clutter_actor_animate_with_timeline (rectangle, CLUTTER_LINEAR, timeline,
|
|
"@constraints.path.offset", 1.0,
|
|
NULL);
|
|
|
|
clutter_actor_show (stage);
|
|
|
|
clutter_main ();
|
|
|
|
return EXIT_SUCCESS;
|
|
}
|