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mutter/tests/interactive/test-paint-wrapper.c
Emmanuele Bassi 382b38c0f7 test-paint-wrapper: Request ARGB visuals on GLX 
If we are on GLX we have to request ARGB visuals, otherwise Clutter will
not do it by itself.
2010-03-10 00:25:26 +00:00

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#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gmodule.h>
#include <clutter/clutter.h>
#if defined (_MSC_VER) && !defined (_USE_MATH_DEFINES)
#define _USE_MATH_DEFINES
#endif
#include <math.h>
#include <errno.h>
#include <stdlib.h>
#include <glib.h>
#ifdef HAVE_CLUTTER_GLX
#include "clutter/x11/clutter-x11.h"
#endif
#define NHANDS 6
typedef struct SuperOH
{
ClutterActor **hand, *bgtex;
ClutterActor *real_hand;
ClutterActor *group;
ClutterActor *stage;
gint stage_width;
gint stage_height;
gfloat radius;
ClutterBehaviour *scaler_1;
ClutterBehaviour *scaler_2;
ClutterTimeline *timeline;
gboolean *paint_guards;
} SuperOH;
static gint n_hands = NHANDS;
static gint use_alpha = 255;
static GOptionEntry super_oh_entries[] = {
{
"num-hands", 'n',
0,
G_OPTION_ARG_INT, &n_hands,
"Number of hands", "HANDS"
},
{
"use-alpha", 'a',
0,
G_OPTION_ARG_INT, &use_alpha,
"Stage opacity", "VALUE"
},
{ 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 ***\n",
clutter_event_get_button (event),
x, y);
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_q)
{
clutter_main_quit ();
return TRUE;
}
else if (clutter_event_get_key_symbol (event) == CLUTTER_r)
{
gint i;
for (i = 0; i < n_hands; i++)
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*/
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.
*/
clutter_actor_set_rotation (oh->hand[i],
CLUTTER_Z_AXIS,
-6.0 * rotation,
0, 0, 0);
}
}
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);
}
static void
hand_pre_paint (ClutterActor *actor,
gpointer user_data)
{
SuperOH *oh = user_data;
gfloat w, h;
int actor_num;
for (actor_num = 0; oh->hand[actor_num] != actor; actor_num++)
;
g_assert (oh->paint_guards[actor_num] == FALSE);
clutter_actor_get_size (actor, &w, &h);
cogl_set_source_color4ub (255, 0, 0, 128);
cogl_rectangle (0, 0, w / 2, h / 2);
oh->paint_guards[actor_num] = TRUE;
}
static void
hand_post_paint (ClutterActor *actor,
gpointer user_data)
{
SuperOH *oh = user_data;
gfloat w, h;
int actor_num;
for (actor_num = 0; oh->hand[actor_num] != actor; actor_num++)
;
g_assert (oh->paint_guards[actor_num] == TRUE);
clutter_actor_get_size (actor, &w, &h);
cogl_set_source_color4ub (0, 255, 0, 128);
cogl_rectangle (w / 2, h / 2, w, h);
oh->paint_guards[actor_num] = FALSE;
}
G_MODULE_EXPORT int
test_paint_wrapper_main (int argc, char *argv[])
{
ClutterAlpha *alpha;
ClutterActor *stage;
ClutterColor stage_color = { 0x61, 0x64, 0x8c, 0xff };
SuperOH *oh;
gint i;
GError *error;
ClutterActor *real_hand;
error = NULL;
#ifdef HAVE_CLUTTER_GLX
clutter_x11_set_use_argb_visual (TRUE);
#endif
clutter_init_with_args (&argc, &argv,
NULL,
super_oh_entries,
NULL,
&error);
if (error)
{
g_warning ("Unable to initialise Clutter:\n%s",
error->message);
g_error_free (error);
return EXIT_FAILURE;
}
stage = clutter_stage_get_default ();
clutter_actor_set_size (stage, 800, 600);
if (use_alpha != 255)
{
clutter_stage_set_use_alpha (CLUTTER_STAGE (stage), TRUE);
clutter_actor_set_opacity (stage, use_alpha);
}
clutter_stage_set_title (CLUTTER_STAGE (stage), "Paint Test");
clutter_stage_set_color (CLUTTER_STAGE (stage), &stage_color);
oh = g_new(SuperOH, 1);
oh->stage = stage;
/* Create a timeline to manage animation */
oh->timeline = clutter_timeline_new (6000);
clutter_timeline_set_loop (oh->timeline, TRUE);
/* 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);
real_hand = clutter_texture_new_from_file (TESTS_DATADIR
G_DIR_SEPARATOR_S
"redhand.png",
&error);
if (real_hand == NULL)
{
g_error ("image load failed: %s", error->message);
return EXIT_FAILURE;
}
/* create a new group to hold multiple actors in a group */
oh->group = clutter_group_new();
oh->hand = g_new (ClutterActor*, n_hands);
oh->stage_width = clutter_actor_get_width (stage);
oh->stage_height = clutter_actor_get_height (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;
else
oh->hand[i] = clutter_clone_new (real_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);
g_signal_connect (oh->hand[i], "button-press-event",
G_CALLBACK (on_button_press_event),
oh);
/* paint something before each hand */
g_signal_connect (oh->hand[i],
"paint", G_CALLBACK (hand_pre_paint),
oh);
/* paint something after each hand */
g_signal_connect_after (oh->hand[i],
"paint", G_CALLBACK (hand_post_paint),
oh);
/* Add to our group group */
clutter_container_add_actor (CLUTTER_CONTAINER (oh->group), oh->hand[i]);
if (i % 2)
clutter_behaviour_apply (oh->scaler_1, oh->hand[i]);
else
clutter_behaviour_apply (oh->scaler_2, oh->hand[i]);
}
oh->paint_guards = g_malloc0 (sizeof (gboolean) * n_hands);
/* Add the group to the stage */
clutter_container_add_actor (CLUTTER_CONTAINER (stage),
CLUTTER_ACTOR (oh->group));
/* Show everying ( and map window ) */
clutter_actor_show (stage);
g_signal_connect (stage, "key-release-event",
G_CALLBACK (input_cb),
oh);
/* and start it */
clutter_timeline_start (oh->timeline);
clutter_main ();
g_object_unref (oh->scaler_1);
g_object_unref (oh->scaler_2);
g_object_unref (oh->timeline);
g_free (oh->paint_guards);
g_free (oh->hand);
g_free (oh);
return 0;
}
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