import gtk, gobject

class Crosslines(object):

    x_label = None
    y_label = None

    def __init__(self):
        self.redraw_timeout = False
        window = gtk.Window(gtk.WINDOW_TOPLEVEL)
        window.set_title("Crosslines Example")
        window.connect("destroy", lambda w: gtk.main_quit())
        window.set_size_request(800,600)


        self.area = gtk.DrawingArea()
        self.x_label = gtk.Label('kasdhf')
        self.y_label = gtk.Label(-1)

        self.fixed = gtk.Fixed()
        self.fixed.set_events(gtk.gdk.POINTER_MOTION_MASK | \
                             gtk.gdk.POINTER_MOTION_HINT_MASK)
        self.fixed.connect("motion_notify_event", self.motion_notify)
        self.fixed.set_has_window(True)

        self.fixed.put(self.x_label, 100, 300)
        self.fixed.put(self.y_label, 12, 40)
        self.fixed.put(self.area, 0, 0)

        window.add(self.fixed)
        window.show_all()

    def motion_notify(self, widget, event):

        x, y = event.get_coords()
        x = int(x)
        y = int(y)

        widget.move(self.x_label, x + 5, y -20)
        widget.move(self.y_label, x - 30, y -20)
        self.x_label.set_text(str(x));
        self.y_label.set_text(str(y));

        drawable = widget.window
        print type(drawable)
        gc = drawable.new_gc()
        gc.set_line_attributes(1, \
                               gtk.gdk.LINE_SOLID, \
                               gtk.gdk.CAP_BUTT, \
                               gtk.gdk.JOIN_ROUND)
        rect = widget.get_allocation()
        drawable.draw_line(gc, x, 0, x, int(rect.height))
        drawable.draw_line(gc, 0, y, int(rect.width), y)

        if self.redraw_timeout:
            gobject.source_remove(self.redraw_timeout)
        self.redraw_timeout = gobject.timeout_add(50, self.redraw_lines, drawable, gc, x, y, rect)

    def redraw_lines(self, drawable, gc, x, y, rect):
        drawable.draw_line(gc, x, 0, x, int(rect.height))
        drawable.draw_line(gc, 0, y, int(rect.width), y)


def main():
    gtk.main()
    return 0

if __name__ == '__main__':
    Crosslines()
    main()