Re: Hiding a Widget & Keeping the Events Running

[Jan-Marek Glogowski <glogow fbihome de>]

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Ok - some code, which works here - when clicked the label changes
visibility.

#include <gtk/gtk.h>

gboolean eventbox_button_press
        (GtkWidget *widget, GdkEventButton *event, gpointer user_data)
{
        GtkWidget *event_widget = GTK_WIDGET( user_data );
        if( GTK_WIDGET_VISIBLE( event_widget ) )
                gtk_widget_hide( event_widget );
        else
                gtk_widget_show( event_widget );
        return FALSE;
}

int
main( int argc,
      char *argv[])
{
  GtkWidget *event, *label, *window;

  gtk_init( &argc, &argv );

  window = gtk_window_new( GTK_WINDOW_TOPLEVEL );

  g_signal_connect( G_OBJECT( window ),
    "destroy", G_CALLBACK( gtk_main_quit ), NULL);

  event = gtk_event_box_new();
  gtk_container_add( GTK_CONTAINER( window ), event );

  label = gtk_label_new("Hello");
  gtk_container_add( GTK_CONTAINER( event ), label );

  g_signal_connect( event, "button_press_event",
    G_CALLBACK( eventbox_button_press ), label );

  gtk_widget_show_all( window );
  gtk_main();
  return 0;
}

The GtkLabel is special, since it can't receive events, because it has no
own window. If the child widget has a window you should be able to simply
connect a handler to the widget, which hides it, and a handler to the
event box, which shows it.

The table shouldn't have any influence...

HTH

Jan-Marek
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