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#include <gtk/gtk.h>
#include <clutter/clutter.h>
#include <math.h>
#include <clutter-gtk/clutter-gtk.h>
#define NWIDGETS 5
#define WINWIDTH 400
#define WINHEIGHT 400
#define RADIUS 80
static ClutterGroup *group = NULL;
static ClutterActor *widgets[NWIDGETS];
static gboolean do_rotate = TRUE;
/* input handler */
void
input_cb (ClutterStage *stage,
ClutterEvent *event,
gpointer data)
{
if (event->type == CLUTTER_BUTTON_PRESS)
{
ClutterActor *a;
gfloat x, y;
clutter_event_get_coords (event, &x, &y);
a = clutter_stage_get_actor_at_pos (stage, CLUTTER_PICK_ALL, x, y);
g_print ("click at %f, %f -> %s:%p\n",
(double)x, (double)y,
g_type_name_from_instance ((GTypeInstance *)a), a);
if (a && !CLUTTER_IS_STAGE (a) && ! CLUTTER_IS_GROUP (a))
clutter_actor_hide (a);
}
else if (event->type == CLUTTER_KEY_PRESS)
{
g_print ("*** key press event (key:%c) ***\n",
clutter_event_get_key_symbol (event));
if (clutter_event_get_key_symbol (event) == CLUTTER_q)
gtk_main_quit ();
}
}
/* Timeline handler */
void
frame_cb (ClutterTimeline *timeline,
gint msecs,
gpointer data)
{
gint i;
double rotation = clutter_timeline_get_progress (timeline) * 360.0;
if (!do_rotate)
return;
/* Rotate everything clockwise about stage center */
clutter_actor_set_rotation (CLUTTER_ACTOR (group),
CLUTTER_Z_AXIS,
rotation,
WINWIDTH / 2, WINHEIGHT / 2, 0);
for (i = 0; i < NWIDGETS; i++)
{
/* rotate each widget around its center */
gint w = clutter_actor_get_width (widgets[i]);
gint h = clutter_actor_get_height (widgets[i]);
clutter_actor_set_rotation (widgets[i],
CLUTTER_Z_AXIS,
- 2 * rotation,
w / 2, h / 2,
0);
clutter_actor_set_opacity (widgets[i], 50 * sin (2 * M_PI * rotation / 360) + (255 - 50));
}
/*
clutter_actor_rotate_x (CLUTTER_ACTOR(oh->group),
75.0,
WINHEIGHT/2, 0);
*/
}
#if 0
static ClutterActor *
create_gtk_actor (int i)
{
ClutterColor colour = { 255, 0, 0, 255 };
ClutterActor *actor;
actor = clutter_rectangle_new_with_color (&colour);
clutter_actor_set_size (actor, 123, 60);
return actor;
}
#else
static void
button_clicked (GtkWidget *button,
GtkWidget *vbox)
{
GtkWidget *label;
g_print ("button clicked\n");
label = gtk_label_new ("A new label");
gtk_widget_show (label);
gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0);
}
static ClutterActor *
create_gtk_actor (int i)
{
GtkWidget *button, *vbox, *entry, *bin, *scroll;
ClutterActor *gtk_actor;
int j;
gtk_actor = gtk_clutter_actor_new ();
bin = gtk_clutter_actor_get_widget (GTK_CLUTTER_ACTOR (gtk_actor));
scroll = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scroll), GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
gtk_container_add (GTK_CONTAINER (bin), scroll);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (scroll), vbox);
button = gtk_button_new_with_label ("A Button");
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
g_signal_connect (button, "clicked",
G_CALLBACK (button_clicked),
vbox);
for (j = 0; j < 6; j++)
{
button = gtk_check_button_new_with_label ("Another button");
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
}
entry = gtk_entry_new ();
gtk_box_pack_start (GTK_BOX (vbox), entry, FALSE, FALSE, 0);
gtk_widget_show_all (bin);
return gtk_actor;
}
#endif
int
main (int argc, char *argv[])
{
ClutterTimeline *timeline;
ClutterActor *stage;
ClutterColor stage_color = { 0x61, 0x64, 0x8c, 0xff };
GtkWidget *window, *clutter;
GtkWidget *button, *vbox;
gint i;
if (gtk_clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
g_error ("Unable to initialize GtkClutter");
if (argc != 1)
do_rotate = FALSE;
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
g_signal_connect (window, "destroy",
G_CALLBACK (gtk_main_quit), NULL);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
gtk_container_add (GTK_CONTAINER (window), vbox);
clutter = gtk_clutter_embed_new ();
gtk_widget_set_size_request (clutter, WINWIDTH, WINHEIGHT);
gtk_container_add (GTK_CONTAINER (vbox), clutter);
stage = gtk_clutter_embed_get_stage (GTK_CLUTTER_EMBED (clutter));
button = gtk_button_new_from_stock (GTK_STOCK_QUIT);
g_signal_connect_swapped (button, "clicked",
G_CALLBACK (gtk_widget_destroy),
window);
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
/* and its background color */
clutter_stage_set_color (CLUTTER_STAGE (stage),
&stage_color);
/* create a new group to hold multiple actors in a group */
group = CLUTTER_GROUP (clutter_group_new ());
for (i = 0; i < NWIDGETS; i++)
{
gint x, y, w, h;
widgets[i] = create_gtk_actor (i);
/* Place around a circle */
w = clutter_actor_get_width (widgets[0]);
h = clutter_actor_get_height (widgets[0]);
x = WINWIDTH/2 + RADIUS * cos (i * 2 * M_PI / (NWIDGETS)) - w/2;
y = WINHEIGHT/2 + RADIUS * sin (i * 2 * M_PI / (NWIDGETS)) - h/2;
clutter_actor_set_position (widgets[i], x, y);
/* Add to our group group */
#if 1
clutter_group_add (group, widgets[i]);
#else
clutter_container_add_actor (CLUTTER_CONTAINER (stage),
CLUTTER_ACTOR (widgets[i]));
#endif
}
/* Add the group to the stage */
clutter_container_add_actor (CLUTTER_CONTAINER (stage),
CLUTTER_ACTOR (group));
g_signal_connect (stage, "button-press-event",
G_CALLBACK (input_cb),
NULL);
g_signal_connect (stage, "key-release-event",
G_CALLBACK (input_cb),
NULL);
gtk_widget_show_all (window);
/* Only show the actors after parent show otherwise it will just be
* unrealized when the clutter foreign window is set. widget_show
* will call show on the stage.
*/
clutter_actor_show_all (CLUTTER_ACTOR (group));
/* Create a timeline to manage animation */
timeline = clutter_timeline_new (6000);
g_object_set(timeline, "loop", TRUE, NULL); /* have it loop */
/* fire a callback for frame change */
g_signal_connect(timeline, "new-frame", G_CALLBACK (frame_cb), NULL);
/* and start it */
clutter_timeline_start (timeline);
gtk_main();
return 0;
}
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