1GladeXML(3) User Contributed Perl Documentation GladeXML(3)
2
6 Gtk2::GladeXML - (DEPRECATED) Create user interfaces directly from
7 Glade XML files.
8
10 # for a pure gtk+ glade project
11 use Gtk2 -init;
12 use Gtk2::GladeXML;
13 $gladexml = Gtk2::GladeXML->new('example.glade');
14 $gladexml->signal_autoconnect_from_package('main');
15 $quitbtn = $gladexml->get_widget('Quit');
16 Gtk2->main;
17 # for glade files using gnome widgets, you must initialize Gnome2
19 # before loading the glade file.
20 use Gnome2;
21 use Gtk2::GladeXML;
22 # this call also initializes gtk+ for us
23 Gnome2::Program->init ($appname, $version);
24 $gladexml = Gtk2::GladeXML->new('gnomeapp.glade');
25 Gtk2->main;
26
28 DEPRECATED Gtk2::GladeXML allows Perl programmers to use libglade, a C
29 library which generates graphical user interfaces directly from the XML
30 output of the Glade user interface designer.
31
33 NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE
34 This module has been deprecated by the Gtk-Perl project. This means
36 that the module will no longer be updated with security patches, bug
37 fixes, or when changes are made in the Perl ABI. The Git repo for this
38 module has been archived (made read-only), it will no longer possible
39 to submit new commits to it. You are more than welcome to ask about
40 this module on the Gtk-Perl mailing list, but our priorities going
41 forward will be maintaining Gtk-Perl modules that are supported and
42 maintained upstream; this module is neither.
43 Since this module is licensed under the LGPL v2.1, you may also fork
45 this module, if you wish, but you will need to use a different name for
46 it on CPAN, and the Gtk-Perl team requests that you use your own
47 resources (mailing list, Git repos, bug trackers, etc.) to maintain
48 your fork going forward.
49 • Perl URL: https://gitlab.gnome.org/GNOME/perl-gtk2-gladexml
51 • Upstream URL: https://gitlab.gnome.org/Archive/libglade
53 • Last upstream version: 2.6.4
55 • Last upstream release date: 2009-03-17
57 • Migration path for this module: Gtk3::Builder
59 • Migration module URL: https://metacpan.org/pod/Gtk3
61 NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE
63 Glade is a free user interface builder for GTK+ and GNOME. After
65 designing a user interface with glade-2 the layout and configuration
66 are saved in an XML file. libglade is a library which knows how to
67 build and hook up the user interface described in the Glade XML file at
68 application run time.
69 This extension module binds libglade to Perl so you can create and
71 manipulate user interfaces in Perl code in conjunction with Gtk2 and
72 even Gnome2. Better yet you can load a file's contents into a PERL
73 scalar do a few magical regular expressions to customize things and the
74 load up the app. It doesn't get any easier.
75
77 $gladexml = Gtk2::GladeXML->new(GLADE_FILE, [ROOT, DOMAIN])
78 Create a new GladeXML object by loading the data in GLADE_FILE.
79 ROOT is an optional parameter that specifies a point (widget node)
80 from which to start building. DOMAIN is an optional parameter that
81 specifies the translation domain for the xml file.
82 $gladexml = Gtk2::GladeXML->new_from_buffer(BUFFER, [ROOT, DOMAIN])
84 Create a new GladeXML object from the scalar string contained in
85 BUFFER. ROOT is an optional parameter that specifies a point
86 (widget node) from which to start building. DOMAIN is an optional
87 parameter that specifies the translation domain for the xml file.
88 $widget = $gladexml->get_widget(NAME)
90 Return the widget created by the XML file with NAME or undef if no
91 such name exists.
92 $gladexml->signal_autoconnect($callback[, $userdata])
94 Iterates over all signals and calls the given callback:
95 sub example_cb {
97 my ($name, $widget, $signal, $signal_data, $connect, $after, $userdata) = @_;
98 }
99 The following two convenience methods use this to provide a more
101 convenient interface.
102 $gladexml->signal_autoconnect_from_package([PACKAGE or OBJECT])
104 Sets up the signal handling callbacks as specified in the glade XML
105 data.
106 The argument to this method can be a Perl package name or an
108 object. If a package name is used, each handler named in the Glade
109 XML data will be called as a subroutine in the named package. If
110 an object is supplied each handler will be called as a method of
111 the object. If no argument is supplied, the name of the calling
112 package will be used. A user data argument cannot be supplied
113 however this is seldom necessary when an object is used.
114 The names of the subroutines or methods must exactly match the
116 handler name in the XML data. It is worth noting that callbacks
117 you get for free in c such as gtk_main_quit will not exist in perl
118 and must always be defined, for example:
119 sub gtk_main_quit
121 {
122 Gtk2->main_quit;
123 }
124 Otherwise behavior should be exactly as expected with the use of
126 libglade from a C application.
127 $gladexml->signal_autoconnect_all (name => handler, ...)
129 Iterates over all named signals and tries to connect them to the
130 handlers specified as arguments (handlers not given as argument are
131 being ignored). This is very handy when implementing your own
132 widgets, where you can't use global callbacks.
133 $widget = Gtk2::Glade->set_custom_handler ($callback[, $userdata])
135 This method tells Gtk2::GladeXML how to create handlers for custom
136 widgets.
137 You can specify a "custom" widget in a glade file, which allows you
139 to include in your interface widgets that Glade itself doesn't know
140 how to create. To tell libglade how to instantiate such widgets,
141 you specify a "custom widget handler", a function which returns a
142 Gtk2:Widget object for that custom widget. This handler needs to
143 be installed sometime before the instantiation of your
144 Gtk2::GladeXML object, by calling "set_custom_handler".
145 my $widget = Gtk2::Glade->set_custom_handler( \&my_handler );
147 my $gladexml = Gtk2::GladeXML->new( 'MyApp.glade' );
148 The prototype for the custom handler is:
150 sub my_handler {
152 my ($xml, # The Gtk2::GladeXML object
153 # the remaining arguments are as specified in the glade file:
154 $func_name, # The function name
155 $name, # the name of the widget to be created
156 $str1, # the string1 property
157 $str2, # the string2 property
158 $int1, # the int1 property
159 $int2, # the int2 property
160 $userdata # the data passed to set_custom_handler
161 ) = @_;
162 ...
163 return $widget; # a new Gtk2::Widget; you must call ->show on it.
164 }
165
167 Where is the option to generate Perl source in Glade?
168 Glade itself only creates the XML description, and relies on extra
169 converter programs to write source code; only a few converters are
170 widely popular.
171 In general, however, you don't want to generate source code for a
173 variety of reasons, mostly to do with maintainability. This
174 message on the glade-devel list explains it best:
175 http://lists.ximian.com/archives/public/glade-devel/2003-February/000015.html
177 Why does my program crash on startup?
179 Does your glade file use Gnome widgets? If so, you must initialize
180 Gnome manually; libglade can knows how to create gnome widgets, but
181 can't know how you want to initialize the app. This is usually
182 sufficient:
183 use Gnome2;
185 Gnome2::Program->init ($app_name, $version_string);
186 Libglade's API reference mentions this:
188 http://developer.gnome.org/doc/API/2.0/libglade/libglade-modules.html
189
191 perl(1), Glib(3pm), Gtk2(3pm)
192 The Libglade Reference Manual at
194 <http://developer.gnome.org/doc/API/2.0/libglade/>
195 An introductory article that originally appeared in The Perl Review:
197 <http://live.gnome.org/GTK2-Perl/GladeXML/Tutorial>
198
200 Ross McFarland <rwmcfa1 at neces dot com>, Marc Lehmann <pcg@goof.com>,
201 muppet <scott at asofyet dot org>. Bruce Alderson provided several
202 examples. Grant McClean <grant at mclean dot net dot nz> and Marco
203 Antonio Manzo <amnesiac at perl dot org dot mx> contributed
204 documentation.
205
207 Copyright 2003-2006 by the gtk2-perl team.
208 This library is free software; you can redistribute it and/or modify it
210 under the terms of the GNU Library General Public License as published
211 by the Free Software Foundation; either version 2 of the License, or
212 (at your option) any later version.
213 This library is distributed in the hope that it will be useful, but
215 WITHOUT ANY WARRANTY; without even the implied warranty of
216 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
217 Library General Public License for more details.
218 You should have received a copy of the GNU Library General Public
220 License along with this library; if not, see
221 <https://www.gnu.org/licenses/>.
222perl v5.38.0 2023-07-20 GladeXML(3)