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In order to unify alpha functions and animation modes in ClutterAlpha we should be able to register alpha functions and get a logical id for them; the logical id will then be available to be used by clutter_alpha_set_mode(). The registration requires API changes in ClutterAlpha constructors and methods. It also provides the chance to shift ClutterAlpha towards the use of animations modes only, and to alpha functions as a convenience API for language bindings alone.
65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <glib.h>
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#include <gmodule.h>
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#include <clutter/clutter.h>
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G_MODULE_EXPORT int
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test_viewport_main (int argc, char *argv[])
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{
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ClutterTimeline *timeline;
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ClutterAlpha *alpha;
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ClutterBehaviour *r_behave;
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ClutterActor *stage;
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ClutterActor *hand;
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ClutterColor stage_color = { 0xcc, 0xcc, 0xcc, 0xff };
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clutter_init (&argc, &argv);
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stage = clutter_stage_get_default ();
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clutter_stage_set_color (CLUTTER_STAGE (stage),
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&stage_color);
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/* Make a hand */
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hand = clutter_texture_new_from_file ("redhand.png", NULL);
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if (!hand)
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g_error("pixbuf load failed");
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clutter_actor_set_position (hand, 300, 200);
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clutter_actor_set_clip (hand, 20, 21, 132, 170);
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clutter_actor_set_anchor_point (hand, 86, 125);
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clutter_actor_show (hand);
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clutter_container_add_actor (CLUTTER_CONTAINER (stage), hand);
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/* Make a timeline */
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timeline = clutter_timeline_new (200, 26); /* num frames, fps */
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clutter_timeline_set_loop (timeline, TRUE);
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/* Set an alpha func to power behaviour */
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alpha = clutter_alpha_new_full (timeline, CLUTTER_LINEAR);
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/* Create a behaviour for that alpha */
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r_behave = clutter_behaviour_rotate_new (alpha,
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CLUTTER_Z_AXIS,
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CLUTTER_ROTATE_CW,
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0.0, 360.0);
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/* Apply it to our actor */
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clutter_behaviour_apply (r_behave, hand);
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/* start the timeline and thus the animations */
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clutter_timeline_start (timeline);
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clutter_actor_show_all (stage);
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clutter_main();
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g_object_unref (r_behave);
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return 0;
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}
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