[Glade-devel] libglade usage

[Todd Fisher]

Olexiy Avramchenko wrote:

> Todd Fisher wrote:
>
>> I have a very simple libglade application.  I used glade-2.0.1 to 
>> generate a
>> .glade file which contains a gtkWindow and a GtkButton nothing else.  
>> It defines
>> two signal handlers.   A  realize and destroy signal for the 
>> GtkWindow. when i use the following as my main applicaion the realize 
>> signal handler is not
>> called.
>
>
> <...>
>
>> I expect to run the program see my window pop up and see hello 
>> printed at the terminal.
>> I get no Gtk Warnings or Errors instead.  I think its important to 
>> have this realize signal
>> handler called because I want to initialize my application here.
>>
>> any ideas?  Am i misuing the api? is this a bug in libglade?
>>
>> I've tested this with the lastest unstable release of libglade and a 
>> fairly recent cvs version and
>> noticed the same behavoir.
>
>
> Your window is just realized before glade_xml_signal_autoconnect() 
> call. Possible solutions:
> 1. (the nice one) Test your main window widget with 
> GTK_WIDGET_REALIZED() macro.
> 2. (the worse and untested) Set "Visible" flag ("Common" tab in 
> "Properties" notebook) to FALSE, get a pointer to your window (with 
> call like 'glade_xml_get_widget(xml, "window1")') and call 
> gtk_widget_show_all() on it before gtk_main().
>
>    Olexiy
>
I have a work around for my problem that i'd like to share. basically it 
involves
creating the window manually and only reading in the part of the glade file
that i want to embed into my application.

> int main( int argc, char **argv )
> {
>   App app;
>   GtkWidget *hero_win;
>   GtkWidget *glade_widget_hook;
>                                                                                
>  
>   gtk_init( &argc, &argv );
>                                                                                
>  
>   /* load the interface */
>   app.xml = glade_xml_new( "gui.glade", "vbox1", NULL );
>   if( app.xml == NULL ){
>     g_error( "Failed to initialize glade_xml file" );
>     return 1;
>   }
>   /* connect the signals in the interface */
>   glade_xml_signal_autoconnect_with_data( app.xml, &app );
>                                                                                
>  
>   glade_widget_hook = glade_xml_get_widget( app.xml, "vbox1" );
>                                                                                
>  
>   hero_win = gtk_window_new (GTK_WINDOW_TOPLEVEL);
>   gtk_window_set_title( GTK_WINDOW( hero_win ), "HERO" );
>   gtk_container_add( GTK_CONTAINER( hero_win ), glade_widget_hook );
>                                                                                
>  
>   g_signal_connect ((gpointer) hero_win, "destroy",
>                     G_CALLBACK (on_hero_win_destroy),
>                     &app );
>   g_signal_connect ((gpointer) hero_win, "realize",
>                     G_CALLBACK (on_hero_win_realize),
>                     &app );
>   gtk_widget_show( hero_win );
>                                                                                
>  
>   /* start the event loop */
>   gtk_main();