#!/usr/bin/env python #this is a simple translation of the scribble example that comes with GTK+ import gtk pixmap = None def configure_event(widget, event): global pixmap win = widget.window width, height = win.get_size() pixmap = gtk.gdk.Pixmap(win, width, height) pixmap.draw_rectangle(widget.get_style().white_gc, True, 0, 0, width, height) return True def expose_event(widget, event): x, y, width, height = event.area gc = widget.get_style().fg_gc[gtk.STATE_NORMAL] widget.window.draw_drawable(gc, pixmap, x, y, x, y, width, height) return False def draw_brush(widget, x, y): x, y = int(x), int(y) pixmap.draw_rectangle(widget.get_style().black_gc, True, x-5, y-5, 10, 10) widget.queue_draw() def button_press_event(widget, event): if event.button == 1 and pixmap != None: draw_brush(widget, event.x, event.y) return True def motion_notify_event(widget, event): if event.is_hint: x, y, state = event.window.get_pointer() else: x = event.x; y = event.y state = event.state if state & gtk.gdk.BUTTON1_MASK and pixmap != None: draw_brush(widget, x, y) return True def main(): win = gtk.Window() win.set_name("Test Input") win.connect("destroy", lambda w: gtk.main_quit()) win.set_border_width(5) vbox = gtk.VBox(spacing=3) win.add(vbox) vbox.show() drawing_area = gtk.DrawingArea() drawing_area.set_size_request(200, 200) vbox.pack_start(drawing_area) drawing_area.show() drawing_area.connect("expose_event", expose_event) drawing_area.connect("configure_event", configure_event) drawing_area.connect("motion_notify_event", motion_notify_event) drawing_area.connect("button_press_event", button_press_event) drawing_area.set_events(gtk.gdk.EXPOSURE_MASK | gtk.gdk.LEAVE_NOTIFY_MASK | gtk.gdk.BUTTON_PRESS_MASK | gtk.gdk.POINTER_MOTION_MASK | gtk.gdk.POINTER_MOTION_HINT_MASK) button = gtk.Button(stock=gtk.STOCK_QUIT) vbox.pack_start(button, expand=False, fill=False) button.connect("clicked", lambda widget, win=win: win.destroy()) button.show() win.show() gtk.main() if __name__ == '__main__': main()