mutter/tests/interactive/test-bind.c

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#include <stdlib.h>
#include <gmodule.h>
#include <clutter/clutter.h>
#define RECT_SIZE 128.0
#define N_COLORS 3
static ClutterActor *rects[N_COLORS] = { NULL, };
static const gchar *colors[N_COLORS] = {
"#cc0000", "#73d216", "#3465a4"
};
static gboolean is_expanded = FALSE;
static void
on_click (ClutterClickAction *action,
ClutterActor *actor)
{
if (!is_expanded)
{
clutter_actor_animate (rects[1], CLUTTER_EASE_OUT_CUBIC, 250,
"@constraints.green-x.offset", RECT_SIZE,
"opacity", 255,
NULL);
clutter_actor_animate (rects[2], CLUTTER_EASE_OUT_CUBIC, 500,
"@constraints.blue-x.offset", (RECT_SIZE * 2.0 + 0.5),
"opacity", 255,
NULL);
}
else
{
clutter_actor_animate (rects[1], CLUTTER_EASE_OUT_CUBIC, 250,
"@constraints.green-x.offset", 0.0,
"opacity", 0,
NULL);
clutter_actor_animate (rects[2], CLUTTER_EASE_OUT_CUBIC, 250,
"@constraints.blue-x.offset", 0.0,
"opacity", 0,
NULL);
}
is_expanded = !is_expanded;
}
G_MODULE_EXPORT int
test_bind_main (int argc, char *argv[])
{
ClutterActor *stage;
ClutterConstraint *constraint;
ClutterAction *action;
ClutterColor color;
clutter_init (&argc, &argv);
stage = clutter_stage_new ();
clutter_stage_set_title (CLUTTER_STAGE (stage), "Bind Constraint");
clutter_stage_set_user_resizable (CLUTTER_STAGE (stage), TRUE);
clutter_actor_set_size (stage, RECT_SIZE * 4.0, RECT_SIZE * 3.0);
g_signal_connect (stage, "destroy", G_CALLBACK (clutter_main_quit), NULL);
/* main rectangle */
clutter_color_from_string (&color, colors[0]);
rects[0] = clutter_rectangle_new_with_color (&color);
clutter_actor_set_size (rects[0], RECT_SIZE, RECT_SIZE);
/* center it on the stage */
clutter_actor_add_constraint (rects[0], clutter_align_constraint_new (stage, CLUTTER_ALIGN_X_AXIS, 0.1));
clutter_actor_add_constraint (rects[0], clutter_align_constraint_new (stage, CLUTTER_ALIGN_Y_AXIS, 0.5));
/* make it clickable */
action = clutter_click_action_new ();
clutter_actor_add_action (rects[0], action);
clutter_actor_set_reactive (rects[0], TRUE);
g_signal_connect (action, "clicked", G_CALLBACK (on_click), NULL);
/* second rectangle */
clutter_color_from_string (&color, colors[1]);
rects[1] = clutter_rectangle_new_with_color (&color);
clutter_actor_set_opacity (rects[1], 0);
clutter_actor_add_constraint (rects[1], clutter_bind_constraint_new (rects[0], CLUTTER_BIND_WIDTH, 0.0));
clutter_actor_add_constraint (rects[1], clutter_bind_constraint_new (rects[0], CLUTTER_BIND_HEIGHT, 0.0));
constraint = clutter_bind_constraint_new (rects[0], CLUTTER_BIND_X, 0.0);
clutter_actor_add_constraint_with_name (rects[1], "green-x", constraint);
constraint = clutter_bind_constraint_new (rects[0], CLUTTER_BIND_Y, 0.0);
clutter_actor_add_constraint_with_name (rects[1], "green-y", constraint);
clutter_actor_set_name (rects[1], "green rect");
/* third rectangle */
clutter_color_from_string (&color, colors[2]);
rects[2] = clutter_rectangle_new_with_color (&color);
clutter_actor_set_opacity (rects[2], 0);
clutter_actor_add_constraint (rects[2], clutter_bind_constraint_new (rects[0], CLUTTER_BIND_WIDTH, 0.0));
clutter_actor_add_constraint (rects[2], clutter_bind_constraint_new (rects[0], CLUTTER_BIND_HEIGHT, 0.0));
constraint = clutter_bind_constraint_new (rects[0], CLUTTER_BIND_X, 0.0);
clutter_actor_add_constraint_with_name (rects[2], "blue-x", constraint);
constraint = clutter_bind_constraint_new (rects[0], CLUTTER_BIND_Y, 0.0);
clutter_actor_add_constraint_with_name (rects[2], "blue-y", constraint);
clutter_actor_set_name (rects[2], "blue rect");
/* add everything to the stage */
clutter_container_add (CLUTTER_CONTAINER (stage),
rects[2],
rects[1],
rects[0],
NULL);
clutter_actor_show (stage);
clutter_main ();
return EXIT_SUCCESS;
}