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73a773d37a
A simple shader-based effect that desaturates an actor and its contents based on a controllable factor.
81 lines
2.2 KiB
C
81 lines
2.2 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_rotate_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, *label;
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ClutterColor stage_color = { 0xcc, 0xcc, 0xcc, 0xff };
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gchar *file;
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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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file = g_build_filename (TESTS_DATADIR, "redhand.png", NULL);
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hand = clutter_texture_new_from_file (file, NULL);
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if (!hand)
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g_error("Unable to load '%s'", file);
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g_free (file);
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clutter_actor_set_position (hand, 240, 140);
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clutter_actor_show (hand);
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clutter_actor_add_effect (hand, clutter_desaturate_effect_new (0.75));
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label = clutter_text_new_with_text ("Mono 16",
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"The Wonder\n"
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"of the\n"
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"Spinning Hand");
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clutter_text_set_line_alignment (CLUTTER_TEXT (label), PANGO_ALIGN_CENTER);
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clutter_actor_set_position (label, 150, 150);
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clutter_actor_set_size (label, 500, 100);
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clutter_container_add (CLUTTER_CONTAINER (stage), hand, label, NULL);
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/* Make a timeline */
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timeline = clutter_timeline_new (7692); /* 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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clutter_behaviour_rotate_set_center (CLUTTER_BEHAVIOUR_ROTATE (r_behave),
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86, 125, 0);
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/* Apply it to our actor */
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clutter_behaviour_apply (r_behave, hand);
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clutter_behaviour_apply (r_behave, label);
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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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