mirror of
https://github.com/brl/mutter.git
synced 2024-11-22 16:10:41 -05:00
317 lines
7.9 KiB
C
317 lines
7.9 KiB
C
#include <clutter/clutter.h>
|
|
|
|
#include <math.h>
|
|
#include <errno.h>
|
|
#include <stdlib.h>
|
|
#include <glib.h>
|
|
#include <gmodule.h>
|
|
|
|
#define NHANDS 6
|
|
|
|
typedef struct SuperOH
|
|
{
|
|
ClutterActor **hand;
|
|
ClutterActor *bgtex;
|
|
ClutterActor *real_hand;
|
|
ClutterActor *group;
|
|
ClutterActor *stage;
|
|
|
|
gint stage_width;
|
|
gint stage_height;
|
|
gfloat radius;
|
|
|
|
ClutterBehaviour *scaler_1;
|
|
ClutterBehaviour *scaler_2;
|
|
ClutterTimeline *timeline;
|
|
} SuperOH;
|
|
|
|
static gint n_hands = NHANDS;
|
|
|
|
static GOptionEntry super_oh_entries[] = {
|
|
{
|
|
"num-hands", 'n',
|
|
0,
|
|
G_OPTION_ARG_INT, &n_hands,
|
|
"Number of hands", "HANDS"
|
|
},
|
|
{ NULL }
|
|
};
|
|
|
|
static void
|
|
on_group_destroy (ClutterActor *actor,
|
|
SuperOH *oh)
|
|
{
|
|
oh->group = NULL;
|
|
}
|
|
|
|
static void
|
|
on_hand_destroy (ClutterActor *actor,
|
|
SuperOH *oh)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < n_hands; i++)
|
|
{
|
|
if (oh->hand[i] == actor)
|
|
oh->hand[i] = NULL;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
on_button_press_event (ClutterActor *actor,
|
|
ClutterEvent *event,
|
|
SuperOH *oh)
|
|
{
|
|
gfloat x, y;
|
|
|
|
clutter_event_get_coords (event, &x, &y);
|
|
|
|
g_print ("*** button press event (button:%d) at %.2f, %.2f on %s ***\n",
|
|
clutter_event_get_button (event),
|
|
x, y,
|
|
clutter_actor_get_name (actor));
|
|
|
|
clutter_actor_hide (actor);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
input_cb (ClutterActor *stage,
|
|
ClutterEvent *event,
|
|
gpointer data)
|
|
{
|
|
SuperOH *oh = data;
|
|
|
|
if (event->type == CLUTTER_KEY_RELEASE)
|
|
{
|
|
g_print ("*** key press event (key:%c) ***\n",
|
|
clutter_event_get_key_symbol (event));
|
|
|
|
if (clutter_event_get_key_symbol (event) == CLUTTER_KEY_q)
|
|
{
|
|
clutter_main_quit ();
|
|
|
|
return TRUE;
|
|
}
|
|
else if (clutter_event_get_key_symbol (event) == CLUTTER_KEY_r)
|
|
{
|
|
gint i;
|
|
|
|
for (i = 0; i < n_hands; i++)
|
|
{
|
|
if (oh->hand[i] != NULL)
|
|
clutter_actor_show (oh->hand[i]);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/* Timeline handler */
|
|
static void
|
|
frame_cb (ClutterTimeline *timeline,
|
|
gint msecs,
|
|
gpointer data)
|
|
{
|
|
SuperOH *oh = data;
|
|
gint i;
|
|
float rotation = clutter_timeline_get_progress (timeline) * 360.0f;
|
|
|
|
/* Rotate everything clockwise about stage center*/
|
|
if (oh->group != NULL)
|
|
clutter_actor_set_rotation (oh->group,
|
|
CLUTTER_Z_AXIS,
|
|
rotation,
|
|
oh->stage_width / 2,
|
|
oh->stage_height / 2,
|
|
0);
|
|
|
|
for (i = 0; i < n_hands; i++)
|
|
{
|
|
/* Rotate each hand around there centers - to get this we need
|
|
* to take into account any scaling.
|
|
*/
|
|
if (oh->hand[i] != NULL)
|
|
clutter_actor_set_rotation (oh->hand[i],
|
|
CLUTTER_Z_AXIS,
|
|
-6.0 * rotation,
|
|
0, 0, 0);
|
|
}
|
|
}
|
|
|
|
static void
|
|
stop_and_quit (ClutterActor *stage,
|
|
SuperOH *data)
|
|
{
|
|
clutter_timeline_stop (data->timeline);
|
|
|
|
clutter_main_quit ();
|
|
}
|
|
|
|
static gdouble
|
|
my_sine_wave (ClutterAlpha *alpha,
|
|
gpointer dummy G_GNUC_UNUSED)
|
|
{
|
|
ClutterTimeline *timeline = clutter_alpha_get_timeline (alpha);
|
|
gdouble progress = clutter_timeline_get_progress (timeline);
|
|
|
|
return sin (progress * G_PI);
|
|
}
|
|
|
|
G_MODULE_EXPORT int
|
|
test_actors_main (int argc, char *argv[])
|
|
{
|
|
ClutterAlpha *alpha;
|
|
SuperOH *oh;
|
|
gint i;
|
|
GError *error;
|
|
ClutterActor *real_hand;
|
|
gchar *file;
|
|
|
|
error = NULL;
|
|
|
|
if (clutter_init_with_args (&argc, &argv,
|
|
NULL,
|
|
super_oh_entries,
|
|
NULL,
|
|
&error) != CLUTTER_INIT_SUCCESS)
|
|
{
|
|
g_warning ("Unable to initialise Clutter:\n%s",
|
|
error->message);
|
|
g_error_free (error);
|
|
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
oh = g_new (SuperOH, 1);
|
|
|
|
oh->stage = clutter_stage_new ();
|
|
clutter_actor_set_size (oh->stage, 800, 600);
|
|
clutter_actor_set_name (oh->stage, "Default Stage");
|
|
clutter_actor_set_background_color (oh->stage, CLUTTER_COLOR_LightSkyBlue);
|
|
g_signal_connect (oh->stage, "destroy", G_CALLBACK (stop_and_quit), oh);
|
|
|
|
clutter_stage_set_title (CLUTTER_STAGE (oh->stage), "Actors");
|
|
clutter_stage_set_user_resizable (CLUTTER_STAGE (oh->stage), TRUE);
|
|
|
|
/* Create a timeline to manage animation */
|
|
oh->timeline = clutter_timeline_new (6000);
|
|
clutter_timeline_set_repeat_count (oh->timeline, -1);
|
|
|
|
/* fire a callback for frame change */
|
|
g_signal_connect (oh->timeline, "new-frame", G_CALLBACK (frame_cb), oh);
|
|
|
|
/* Set up some behaviours to handle scaling */
|
|
alpha = clutter_alpha_new_with_func (oh->timeline, my_sine_wave, NULL, NULL);
|
|
|
|
oh->scaler_1 = clutter_behaviour_scale_new (alpha, 0.5, 0.5, 1.0, 1.0);
|
|
oh->scaler_2 = clutter_behaviour_scale_new (alpha, 1.0, 1.0, 0.5, 0.5);
|
|
|
|
file = g_build_filename (TESTS_DATADIR, "redhand.png", NULL);
|
|
real_hand = clutter_texture_new_from_file (file, &error);
|
|
if (real_hand == NULL)
|
|
g_error ("image load failed: %s", error->message);
|
|
|
|
g_free (file);
|
|
|
|
/* create a new actor to hold other actors */
|
|
oh->group = clutter_actor_new ();
|
|
clutter_actor_set_layout_manager (oh->group, clutter_fixed_layout_new ());
|
|
clutter_actor_set_name (oh->group, "Group");
|
|
g_signal_connect (oh->group, "destroy", G_CALLBACK (on_group_destroy), oh);
|
|
clutter_actor_add_constraint (oh->group, clutter_align_constraint_new (oh->stage, CLUTTER_ALIGN_BOTH, 0.5));
|
|
clutter_actor_add_constraint (oh->group, clutter_bind_constraint_new (oh->stage, CLUTTER_BIND_SIZE, 0.0f));
|
|
|
|
oh->hand = g_new (ClutterActor*, n_hands);
|
|
|
|
oh->stage_width = clutter_actor_get_width (oh->stage);
|
|
oh->stage_height = clutter_actor_get_height (oh->stage);
|
|
oh->radius = (oh->stage_width + oh->stage_height)
|
|
/ n_hands;
|
|
|
|
for (i = 0; i < n_hands; i++)
|
|
{
|
|
gint x, y, w, h;
|
|
|
|
if (i == 0)
|
|
{
|
|
oh->hand[i] = real_hand;
|
|
clutter_actor_set_name (oh->hand[i], "Real Hand");
|
|
}
|
|
else
|
|
{
|
|
oh->hand[i] = clutter_clone_new (real_hand);
|
|
clutter_actor_set_name (oh->hand[i], "Clone Hand");
|
|
}
|
|
|
|
clutter_actor_set_reactive (oh->hand[i], TRUE);
|
|
|
|
clutter_actor_set_size (oh->hand[i], 200, 213);
|
|
|
|
/* Place around a circle */
|
|
w = clutter_actor_get_width (oh->hand[i]);
|
|
h = clutter_actor_get_height (oh->hand[i]);
|
|
|
|
x = oh->stage_width / 2
|
|
+ oh->radius
|
|
* cos (i * G_PI / (n_hands / 2))
|
|
- w / 2;
|
|
|
|
y = oh->stage_height / 2
|
|
+ oh->radius
|
|
* sin (i * G_PI / (n_hands / 2))
|
|
- h / 2;
|
|
|
|
clutter_actor_set_position (oh->hand[i], x, y);
|
|
|
|
clutter_actor_move_anchor_point_from_gravity (oh->hand[i],
|
|
CLUTTER_GRAVITY_CENTER);
|
|
|
|
/* Add to our group group */
|
|
clutter_container_add_actor (CLUTTER_CONTAINER (oh->group), oh->hand[i]);
|
|
|
|
g_signal_connect (oh->hand[i], "button-press-event",
|
|
G_CALLBACK (on_button_press_event),
|
|
oh);
|
|
|
|
g_signal_connect (oh->hand[i], "destroy",
|
|
G_CALLBACK (on_hand_destroy),
|
|
oh);
|
|
|
|
if (i % 2)
|
|
clutter_behaviour_apply (oh->scaler_1, oh->hand[i]);
|
|
else
|
|
clutter_behaviour_apply (oh->scaler_2, oh->hand[i]);
|
|
}
|
|
|
|
/* Add the group to the stage */
|
|
clutter_container_add_actor (CLUTTER_CONTAINER (oh->stage), oh->group);
|
|
|
|
/* Show everying */
|
|
clutter_actor_show (oh->stage);
|
|
|
|
g_signal_connect (oh->stage, "key-release-event",
|
|
G_CALLBACK (input_cb),
|
|
oh);
|
|
|
|
/* and start it */
|
|
clutter_timeline_start (oh->timeline);
|
|
|
|
clutter_main ();
|
|
|
|
clutter_timeline_stop (oh->timeline);
|
|
|
|
/* clean up */
|
|
g_object_unref (oh->scaler_1);
|
|
g_object_unref (oh->scaler_2);
|
|
g_object_unref (oh->timeline);
|
|
g_free (oh->hand);
|
|
g_free (oh);
|
|
|
|
return EXIT_SUCCESS;
|
|
}
|