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https://github.com/brl/mutter.git
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118 lines
3.2 KiB
C
118 lines
3.2 KiB
C
#include <stdlib.h>
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#include <gmodule.h>
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#undef CLUTTER_DISABLE_DEPRECATED
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#include <clutter/clutter.h>
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static const ClutterGravity gravities[] = {
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CLUTTER_GRAVITY_NORTH_EAST,
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CLUTTER_GRAVITY_NORTH,
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CLUTTER_GRAVITY_NORTH_WEST,
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CLUTTER_GRAVITY_WEST,
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CLUTTER_GRAVITY_SOUTH_WEST,
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CLUTTER_GRAVITY_SOUTH,
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CLUTTER_GRAVITY_SOUTH_EAST,
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CLUTTER_GRAVITY_EAST,
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CLUTTER_GRAVITY_CENTER,
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CLUTTER_GRAVITY_NONE
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};
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static gint gindex = 0;
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static ClutterActor *label;
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static void
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set_next_gravity (ClutterActor *actor)
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{
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ClutterGravity gravity = gravities[gindex];
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GEnumClass *eclass;
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GEnumValue *evalue;
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clutter_actor_move_anchor_point_from_gravity (actor, gravities[gindex]);
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eclass = g_type_class_ref (CLUTTER_TYPE_GRAVITY);
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evalue = g_enum_get_value (eclass, gravity);
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clutter_text_set_text (CLUTTER_TEXT (label), evalue->value_nick);
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g_type_class_unref (eclass);
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if (++gindex >= G_N_ELEMENTS (gravities))
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gindex = 0;
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}
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static gdouble
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my_ramp_func (ClutterAlpha *alpha,
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gpointer unused)
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{
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ClutterTimeline *timeline = clutter_alpha_get_timeline (alpha);
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return clutter_timeline_get_progress (timeline);
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}
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G_MODULE_EXPORT int
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test_scale_main (int argc, char *argv[])
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{
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ClutterActor *stage, *rect;
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ClutterColor stage_color = { 0x0, 0x0, 0x0, 0xff };
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ClutterColor rect_color = { 0xff, 0xff, 0xff, 0x99 };
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ClutterColor white_color = { 0xff, 0xff, 0xff, 0xFF };
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ClutterTimeline *timeline;
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ClutterAlpha *alpha;
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ClutterBehaviour *behave;
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if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
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return 1;
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stage = clutter_stage_get_default ();
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clutter_stage_set_color (CLUTTER_STAGE (stage), &stage_color);
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clutter_actor_set_size (stage, 300, 300);
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rect = clutter_rectangle_new_with_color (&rect_color);
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clutter_actor_set_size (rect, 100, 100);
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clutter_actor_set_position (rect, 100, 100);
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clutter_container_add_actor (CLUTTER_CONTAINER (stage), rect);
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label = clutter_text_new_with_text ("Sans 20px", "");
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clutter_text_set_color (CLUTTER_TEXT (label),
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&white_color);
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clutter_actor_set_position (label,
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clutter_actor_get_x (rect),
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clutter_actor_get_y (rect)
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+ clutter_actor_get_height (rect));
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clutter_container_add_actor (CLUTTER_CONTAINER (stage), label);
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rect_color.alpha = 0xff;
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rect = clutter_rectangle_new_with_color (&rect_color);
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clutter_actor_set_position (rect, 100, 100);
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clutter_actor_set_size (rect, 100, 100);
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set_next_gravity (rect);
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clutter_container_add_actor (CLUTTER_CONTAINER (stage), rect);
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timeline = clutter_timeline_new (750);
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alpha = clutter_alpha_new_with_func (timeline,
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my_ramp_func,
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NULL, NULL);
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behave = clutter_behaviour_scale_new (alpha,
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0.0, 0.0, /* scale start */
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1.0, 1.0); /* scale end */
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clutter_behaviour_apply (behave, rect);
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clutter_timeline_set_loop (timeline, TRUE);
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g_signal_connect_swapped (timeline, "completed",
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G_CALLBACK (set_next_gravity), rect);
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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 (timeline);
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g_object_unref (behave);
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return EXIT_SUCCESS;
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}
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