/** fixed.c **/
#include <gnome.h>

typedef struct {
    GtkWidget *fixed;
    GtkWidget *button;
} ButtonMover;

GtkWidget *makeFixedContainer();
gint eventDelete(GtkWidget *widget,
        GdkEvent *event,gpointer data);
gint eventDestroy(GtkWidget *widget,
        GdkEvent *event,gpointer data);
void buttonClick(GtkWidget *widget,ButtonMover *bm);

#define WIDTH 400
#define HEIGHT 300

int main(int argc,char *argv[])
{
    GtkWidget *window;
    GtkWidget *fixed;

    gnome_init("fixed","1.0",argc,argv);
    window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    gtk_window_set_default_size(GTK_WINDOW(window),
            WIDTH,HEIGHT);
    gtk_signal_connect(GTK_OBJECT(window),
            "delete_event",
            GTK_SIGNAL_FUNC(eventDelete),
            NULL);
    gtk_signal_connect(GTK_OBJECT(window),
            "destroy",
            GTK_SIGNAL_FUNC(eventDestroy),
            NULL);

    fixed = makeFixedContainer();

    gtk_container_add(GTK_CONTAINER(window),fixed);
    gtk_widget_show(window);
    gtk_main();
    exit(0);
}
GtkWidget *makeFixedContainer() {
    int i;
    GtkWidget *fixed;
    static ButtonMover bm[3];

    fixed = gtk_fixed_new();
    gtk_widget_show(fixed);

    for(i=0; i<3; i++) {
        bm[i].fixed = fixed;
        bm[i].button = gtk_button_new_with_label(
                "(100,100)");
        gtk_signal_connect(GTK_OBJECT(bm[i].button),
                "clicked",
                GTK_SIGNAL_FUNC(buttonClick),
                &bm[i]);
        gtk_widget_show(bm[i].button);
        gtk_fixed_put(GTK_FIXED(fixed),bm[i].button,
                100,100);
    }
    return(fixed);
}
void buttonClick(GtkWidget *widget,ButtonMover *bm)
{
    gchar labelString[80];
    GtkWidget *label;

    gint x = (int)(random() % WIDTH);
    gint y = (int)(random() % HEIGHT);
    sprintf(labelString,"(%d,%d)",x,y);
    label = GTK_WIDGET(GTK_BUTTON(bm->button)->child);
    gtk_label_set_text(GTK_LABEL(label),labelString);
    gtk_fixed_move(GTK_FIXED(bm->fixed),bm->button,x,y);
}
gint eventDelete(GtkWidget *widget,
        GdkEvent *event,gpointer data) {
    return(FALSE);
}
gint eventDestroy(GtkWidget *widget,
        GdkEvent *event,gpointer data) {
    gtk_main_quit();
    return(0);
}