Hi! I'm writing a Python app (gtimelog) that uses a Gtk.Paned to implement an optional side pane. I've an action ("win.show-task-pane") bound to a key (F9) that is implemented as a Gio.PropertyAction linked to the "visible" property of the Gtk.Box on the right. I also have a Gio.Settings binding of a setting (org.gtimelog show-task-pane) to the same "visible" property of the same Gtk.Box (using Gio.SettingsBindFlags.DEFAULT) to make this choice persistent. In addition, I keep the position of the Gtk.Paned in gsettings (org.gtimelog task-pane-position) as well and set it on startup by calling Gtk.Paned.set_position().
The problem is that with Gtk+ 3.20.8, if my application starts with the task pane hidden and I then press F9 to show it, I get these two warnings: (gtimelog:3639): Gtk-WARNING **: Allocating size to 0x1ca4320 without calling gtk_widget_get_preferred_width/height(). How does the code know the size to allocate? (gtimelog:3639): Gtk-WARNING **: Allocating size to GtkBox 0x1a4ba50 without calling gtk_widget_get_preferred_width/height(). How does the code know the size to allocate? The first widget (0x1ca4320) is the main window (there's no class name because it's a class defined in Python). The second widget (0x1a4ba50) is the Gtk.Box I'm hiding and showing (called "task_pane" in the .ui file). There are no warnings after that, even if I hide and show the pane again. There no warnings whatsoever if the Gtk.Box is shown initially on startup (because gsettings say it should be visible). What am I doing wrong? How can I make the warning go away? If you'd like to play with the code, you can do that with git clone https://github.com/gtimelog/gtimelog cd gtimelog make # to compile the gsettings schema ./gtimelog Regards, Marius Gedminas -- But it makes the Linux kernel a bit like a bookstore that started with Greek, Korean, and Japanese, and was happily organizing their books by character set, and then added a section for the Latin character set, only to find that people who can read the Latin character set can still only read a small fraction of the books that use it, on account of a surprising lack of standardization in the pronunciation, vocabulary, and grammar. -- iabervon explains ARM on lwn.net _______________________________________________ gtk-app-devel-list mailing list firstname.lastname@example.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list