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mutter-performance-source/tests/interactive/test-scale.c

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#include <stdlib.h>
#include <gmodule.h>
#include <clutter/clutter.h>
static const ClutterGravity gravities[] = {
CLUTTER_GRAVITY_NORTH_EAST,
CLUTTER_GRAVITY_NORTH,
CLUTTER_GRAVITY_NORTH_WEST,
CLUTTER_GRAVITY_WEST,
CLUTTER_GRAVITY_SOUTH_WEST,
CLUTTER_GRAVITY_SOUTH,
CLUTTER_GRAVITY_SOUTH_EAST,
CLUTTER_GRAVITY_EAST,
CLUTTER_GRAVITY_CENTER,
CLUTTER_GRAVITY_NONE
};
static gint gindex = 0;
static ClutterActor *label;
static void
set_next_gravity (ClutterActor *actor)
{
ClutterGravity gravity = gravities[gindex];
GEnumClass *eclass;
GEnumValue *evalue;
clutter_actor_move_anchor_point_from_gravity (actor, gravities[gindex]);
eclass = g_type_class_ref (CLUTTER_TYPE_GRAVITY);
evalue = g_enum_get_value (eclass, gravity);
clutter_text_set_text (CLUTTER_TEXT (label), evalue->value_nick);
g_type_class_unref (eclass);
if (++gindex >= G_N_ELEMENTS (gravities))
gindex = 0;
}
static gdouble
my_ramp_func (ClutterAlpha *alpha,
gpointer unused)
{
ClutterTimeline *timeline = clutter_alpha_get_timeline (alpha);
return clutter_timeline_get_progress (timeline);
}
G_MODULE_EXPORT int
test_scale_main (int argc, char *argv[])
{
ClutterActor *stage, *rect;
ClutterColor rect_color = { 0xff, 0xff, 0xff, 0x99 };
ClutterTimeline *timeline;
ClutterAlpha *alpha;
ClutterBehaviour *behave;
if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
return 1;
stage = clutter_stage_new ();
clutter_stage_set_title (CLUTTER_STAGE (stage), "Scaling");
clutter_actor_set_background_color (stage, CLUTTER_COLOR_Black);
clutter_actor_set_size (stage, 300, 300);
g_signal_connect (stage, "destroy", G_CALLBACK (clutter_main_quit), NULL);
rect = clutter_rectangle_new_with_color (&rect_color);
clutter_actor_set_size (rect, 100, 100);
clutter_actor_set_position (rect, 100, 100);
clutter_container_add_actor (CLUTTER_CONTAINER (stage), rect);
label = clutter_text_new_with_text ("Sans 20px", "");
clutter_text_set_color (CLUTTER_TEXT (label), CLUTTER_COLOR_White);
clutter_actor_set_position (label,
clutter_actor_get_x (rect),
clutter_actor_get_y (rect)
+ clutter_actor_get_height (rect));
clutter_container_add_actor (CLUTTER_CONTAINER (stage), label);
rect_color.alpha = 0xff;
rect = clutter_rectangle_new_with_color (&rect_color);
clutter_actor_set_position (rect, 100, 100);
clutter_actor_set_size (rect, 100, 100);
set_next_gravity (rect);
clutter_container_add_actor (CLUTTER_CONTAINER (stage), rect);
timeline = clutter_timeline_new (750);
alpha = clutter_alpha_new_with_func (timeline,
my_ramp_func,
NULL, NULL);
behave = clutter_behaviour_scale_new (alpha,
0.0, 0.0, /* scale start */
1.0, 1.0); /* scale end */
clutter_behaviour_apply (behave, rect);
clutter_timeline_set_repeat_count (timeline, -1);
g_signal_connect_swapped (timeline, "completed",
G_CALLBACK (set_next_gravity), rect);
clutter_timeline_start (timeline);
clutter_actor_show_all (stage);
clutter_main();
g_object_unref (timeline);
g_object_unref (behave);
return EXIT_SUCCESS;
}
G_MODULE_EXPORT const char *
test_scale_describe (void)
{
return "Scaling animation and scaling center changes";
}