Greetings! I believe I have a bug report for libglademm. I recently tried to build and run the Om synthesizer:
http://www.nongnu.org/om-synth/ The Om engine and GUI built without complaint (after building and installing the current releases of libsigc++ (2.0.16), glibmm (2.6.1), gtkmm (2.6.4), libglademm (2.6.0), and a few other things). When I try to run the GUI, however, I run into trouble. After displaying a few lines related to the establishment of communication with the Om engine, the following warning is displayed twice: (om_gtk:24421): libglade-WARNING **: could not find a parent that handles internal children for `vbox' This is followed by a screenful of messages along the lines of: (om_gtk:24421): libglademm-CRITICAL **: widget `foo' not found in glade file `/usr/share/om-gtk/om_gtk.glade' ** (om_gtk:24421): CRITICAL **: Gnome::Glade::Xml::get_widget(): dynamic_cast<> failed. At the end of this string of messages, I get a segfault. All the widgets named by the critical messages do, in fact, exist inside the file in question, but they are children of the two vboxes which are being discarded in the first pairs of messages. After a bit of research and experimentation, it would seem that the problem lies in the way libglademm handles the <child internal-child="vbox"> tags, inside widgets derrived from GtkDialog. In fact, I can reproduce the problem on my system by making a slight modification to the file: libglademm-2.6.0/examples/basic/basic.glade If I change the class of the root widget from 'GtkDialog' to 'GtkFileChooserDialog', the 'basic' program produces the following output: (lt-basic:24556): libglade-WARNING **: could not find a parent that handles internal children for `vbox' (lt-basic:24556): libglademm-CRITICAL **: widget `quit_button' not found in glade file `basic.glade' ** (lt-basic:24556): CRITICAL **: Gnome::Glade::Xml::get_widget(): dynamic_cast<> failed. The GtkFileChooserDialog is then displayed, sans label and button. The modified 'basic.glade' file opens without errors or warnings in glade-2, however, and shows both of the missing widgets - suggesting that the syntax and structure of the file is still, in fact, quite valid and correct. I've attached a modified copy of 'basic.glade'. I'd be interested to know if others can reproduce this problem. Let me know what else I can do to help squash this bug. I suspect that someone who is more familiar with Glade/libglade/libglademm would be able to find and fix the trouble far more quickly than I could. FWIW, I'm running Slackware 10.1. GTK in 10.1 has been updated (for security) to the following versions: atk 1.9.1 glib2 2.6.4 gtk+2 2.6.7 pango 1.8.1 I also tried downgrading to the versions from the Slackware 10.1 CD: atk 1.9.0 glib2 2.6.1 gtk+2 2.6.1 pango 1.8.0 With no effect. Lastly, I tried to check out an anonymous CVS copy of libglademm, but the server is currently responding with "anonymous: no such user" messages. TTFN, |) |)enji _______________________________________________ gnomemm-list mailing list [email protected] http://mail.gnome.org/mailman/listinfo/gnomemm-list
