#!/usr/bin/perl -w # Copyright 2008, 2009, 2010 Kevin Ryde # This file is part of Chart. # # Chart is free software; you can redistribute it and/or modify it under the # terms of the GNU General Public License as published by the Free Software # Foundation; either version 3, or (at your option) any later version. # # Chart is distributed in the hope that it will be useful, but WITHOUT ANY # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS # FOR A PARTICULAR PURPOSE. See the GNU General Public License for more # details. # # You should have received a copy of the GNU General Public License along # with Chart. If not, see . use strict; use warnings; use Gtk2 '-init'; use Data::Dumper; my $toplevel = Gtk2::Window->new('toplevel'); $toplevel->signal_connect (destroy => sub { Gtk2->main_quit }); $toplevel->signal_connect (expose_event => sub { print "toplevel expose\n"; }); my $layout = Gtk2::Layout->new; $layout->set_size_request (200,200); $toplevel->add ($layout); $layout->signal_connect (expose_event => sub { print "drawingarea expose ", $layout->window, "\n"; }); my $area = Gtk2::DrawingArea->new; $area->set_size_request (100,100); $layout->add ($area); $area->signal_connect (expose_event => sub { print "sub-drawingarea expose ", $area->window, "\n"; }); $toplevel->add_events (['key-press-mask']); $toplevel->signal_connect (key_press_event => sub { my ($widget, $event) = @_; $toplevel->queue_draw; }); $toplevel->show_all; Gtk2->main;