mutter/examples/behave.c
Emmanuele Bassi f83ffa3520 2006-12-04 Emmanuele Bassi <ebassi@openedhand.com>
* clutter/clutter-private.h: Add our own READABLE,
	WRITABLE and READWRITE paramspec flags, declaring the
	string components of the properties GParamSpec as static;
	this should shave off some bytes in the memory footprint
	and avoid relocations.

	* clutter/clutter-actor.c:
	* clutter/clutter-behaviour.c:
	* clutter/clutter-behaviour-opacity.c:
	* clutter/clutter-behaviour-path.c:
	* clutter/clutter-behavuour-scale.c:
	* clutter/clutter-clone-texture.c:
	* clutter/clutter-label.c:
	* clutter/clutter-rectangle.c:
	* clutter/clutter-stage.c:
	* clutter/clutter-texture.c:
	* clutter/clutter-timeline.c: Use the CLUTTER_PARAM_*
	macros we just added.

	* clutter/clutter-behaviour-scale.c: Add properties for
	the scale begin, scale end and gravity parameters.

	* clutter/clutter-behaviour-path.h: Mark the ClutterKnot
	memory management functions as public (for the bindings),
	since we use the slice allocator for copying knots around;
	add a clutter_knot_equal() function.

	* clutter/clutter-behaviour-path.c:
	(node_distance): Use clutter_knot_equal() as a fast path
	to avoid the sqrt() in case the nodes we are using are
	at the same position.
	(path_total_length): Additional check on the existence
	of the next node.

	* examples/behave.c: Do not leak the ClutterBehaviour
	objects around.
2006-12-04 16:26:35 +00:00

88 lines
2.7 KiB
C

#include <clutter/clutter.h>
int
main (int argc, char *argv[])
{
ClutterTimeline *timeline;
ClutterAlpha *alpha;
ClutterBehaviour *o_behave, *p_behave;
ClutterActor *stage;
ClutterActor *group, *rect, *hand;
ClutterColor stage_color = { 0xcc, 0xcc, 0xcc, 0xff };
ClutterColor rect_bg_color = { 0x33, 0x22, 0x22, 0xff };
ClutterColor rect_border_color = { 0xff, 0xcc, 0xcc, 0xff };
GdkPixbuf *pixbuf;
ClutterKnot knots[] = {{ 0, 0 }, { 0, 300 }, { 300, 300 },
{ 300, 0 }, {0, 0 }};
clutter_init (&argc, &argv);
stage = clutter_stage_get_default ();
g_signal_connect (stage, "key-press-event",
G_CALLBACK (clutter_main_quit),
NULL);
pixbuf = gdk_pixbuf_new_from_file ("redhand.png", NULL);
if (!pixbuf)
g_error("pixbuf load failed");
clutter_stage_set_color (CLUTTER_STAGE (stage),
&stage_color);
/* Make a hand */
group = clutter_group_new ();
clutter_group_add (CLUTTER_GROUP (stage), group);
clutter_actor_show (group);
rect = clutter_rectangle_new ();
clutter_actor_set_position (rect, 0, 0);
clutter_actor_set_size (rect,
gdk_pixbuf_get_width (pixbuf),
gdk_pixbuf_get_height (pixbuf));
clutter_rectangle_set_color (CLUTTER_RECTANGLE (rect),
&rect_bg_color);
clutter_rectangle_set_border_width (CLUTTER_RECTANGLE (rect), 10);
clutter_rectangle_set_border_color (CLUTTER_RECTANGLE (rect),
&rect_border_color);
clutter_actor_show (rect);
hand = clutter_texture_new_from_pixbuf (pixbuf);
clutter_actor_set_position (hand, 0, 0);
clutter_actor_show (hand);
clutter_group_add_many (CLUTTER_GROUP (group), rect, hand, NULL);
/* Make a timeline */
timeline = clutter_timeline_new (100, 26); /* num frames, fps */
g_object_set (timeline, "loop", TRUE, 0);
/* Set an alpha func to power behaviour - ramp is constant rise/fall */
alpha = clutter_alpha_new_full (timeline,
CLUTTER_ALPHA_RAMP,
NULL, NULL);
/* Create a behaviour for that alpha */
o_behave = clutter_behaviour_opacity_new (alpha, 0X33, 0xff);
/* Apply it to our actor */
clutter_behaviour_apply (o_behave, group);
/* Make a path behaviour and apply that too */
p_behave = clutter_behaviour_path_new (alpha, knots, 5);
clutter_behaviour_apply (p_behave, group);
/* start the timeline and thus the animations */
clutter_timeline_start (timeline);
clutter_group_show_all (CLUTTER_GROUP (stage));
clutter_main();
g_object_unref (o_behave);
g_object_unref (p_behave);
return 0;
}