Forum libero

Con quale comando lo compilo questo? Ho tutte le librerie, ma non si vede che non metto qualcosa nei pkgconfig:

#include <gtk/gtk.h>
#include <clutter/clutter.h>
#include <clutter-gtk/gtk-clutter-embed.h>
#include <stdlib.h>

ClutterActor *stage = NULL;

static gboolean
on_button_clicked (GtkButton *button, gpointer user_data)
{
static gboolean already_changed = FALSE;
if(already_changed)
{
    ClutterColor stage_color = { 0x00, 0x00, 0x00, 0xff }; /* Black */
    clutter_stage_set_color (CLUTTER_STAGE (stage), &stage_color);
}
else
{
    ClutterColor stage_color = { 0x20, 0x20, 0xA0, 0xff };
    clutter_stage_set_color (CLUTTER_STAGE (stage), &stage_color);
}

already_changed = !already_changed;

return TRUE; /* Stop further handling of this event. */
}

static gboolean
on_stage_button_press (ClutterStage *stage, ClutterEvent *event, gpointer user_data)
{
gint x = 0;
gint y = 0;
clutter_event_get_coords (event, &x, &y);

g_print ("Stage clicked at (%d, %d)\n", x, y);

return TRUE; /* Stop further handling of this event. */
}

int main(int argc, char *argv[])
{
ClutterColor stage_color = { 0x00, 0x00, 0x00, 0xff }; /* Black */

clutter_init (&argc, &argv);
gtk_init (&argc, &argv);

/* Create the window and some child widgets: */
GtkWidget *window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
GtkWidget *vbox = gtk_vbox_new (FALSE, 6);
gtk_container_add (GTK_CONTAINER (window), vbox);
gtk_widget_show (vbox);
GtkWidget *button = gtk_button_new_with_label ("Change Color");
gtk_box_pack_end (GTK_BOX (vbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
g_signal_connect (button, "clicked",
    G_CALLBACK (on_button_clicked), NULL);

/* Stop the application when the window is closed: */
g_signal_connect (window, "hide",
                    G_CALLBACK (gtk_main_quit), NULL);

/* Create the clutter widget: */
GtkWidget *clutter_widget = gtk_clutter_embed_new ();
gtk_box_pack_start (GTK_BOX (vbox), clutter_widget, TRUE, TRUE, 0);
gtk_widget_show (clutter_widget);

/* Set the size of the widget,
   * because we should not set the size of its stage when using GtkClutterEmbed.
   */
gtk_widget_set_size_request (clutter_widget, 200, 200);

/* Get the stage and set its size and color: */
stage = gtk_clutter_embed_get_stage (GTK_CLUTTER_EMBED (clutter_widget));
clutter_stage_set_color (CLUTTER_STAGE (stage), &stage_color);

/* Show the stage: */
clutter_actor_show (stage);

/* Connect a signal handler to handle mouse clicks and key presses on the stage: */
g_signal_connect (stage, "button-press-event",
    G_CALLBACK (on_stage_button_press), NULL);

/* Show the window: */
gtk_widget_show (GTK_WIDGET (window));

/* Start the main loop, so we can respond to events: */
gtk_main ();

return EXIT_SUCCESS;

}