5. timer

5. timer



#include <stdio.h>
#include <string.h>
#include <gtk/gtk.h>

/* Determines if to continue the timer or not */
static gboolean continue_timer = FALSE;

/* Determines if the timer has started */
static gboolean start_timer = FALSE;

/* Display seconds expired */
static int sec_expired = 0;


static gboolean
_label_update(gpointer data)
{
    GtkLabel *label = (GtkLabel*)data;
    char buf[256];
    memset(&buf, 0x0, 256);
    snprintf(buf, 255, "Time elapsed: %d secs", ++sec_expired);
    gtk_label_set_label(label, buf);
    return continue_timer;

}

int main(int argc, char *argv[])
{
    GtkWidget *window;
    GtkWidget *frame;
    GtkWidget *quit_button;
    GtkWidget *label;

    gtk_init(NULL, NULL);


    window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    gtk_window_set_title(GTK_WINDOW(window), "The first Game");
    gtk_window_set_default_size(GTK_WINDOW(window), 500, 500);
    gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);

    frame = gtk_fixed_new();
    gtk_container_add(GTK_CONTAINER(window), frame);

    label = gtk_label_new("Time elapsed: 0 secs");
    gtk_fixed_put(GTK_FIXED(frame), label, 10, 10);

    gtk_widget_show_all(window);
    g_signal_connect (G_OBJECT (window), "destroy",
           G_CALLBACK (gtk_main_quit),
            NULL);

    g_timeout_add_seconds(1, _label_update, label);
    continue_timer = TRUE;
    start_timer = TRUE;

    gtk_main();
    return 0;
}