On Thu, 2008-10-23 at 15:42 +0200, Laszlo Nagy wrote: > Gustavo J. A. M. Carneiro wrote: > > http://www.daa.com.au/pipermail/pygtk/2006-January/011668.html > > > Yes, this was the only related post that I could find on the internet. > But I could not use it for anything because it does not tell how to do > it. It says: > > "For custom widgets, check the method > gtk.Widget.set_set_scroll_adjustments_signal(signal_name)" > > > But this method only has a signal_name parameter. I do not see how I > could use it for specifying my adjustments and making my widget support > scrolling natively? > > (Also that was written in 2006, probably it is outdated.)
It is not outdated. See http://library.gnome.org/devel/gtk/2.14/GtkWidget.html GtkWidgetClass typedef struct { /* The object class structure needs to be the first * element in the widget class structure in order for * the class mechanism to work correctly. This allows a * GtkWidgetClass pointer to be cast to a GtkObjectClass * pointer. */ GtkObjectClass parent_class; guint activate_signal; guint set_scroll_adjustments_signal; } GtkWidgetClass; activate_signal The signal to emit when a widget of this class is activated, gtk_widget_activate() handles the emission. Implementation of this signal is optional. set_scroll_adjustment_signal This signal is emitted when a widget of this class is added to a scrolling aware parent, gtk_widget_set_scroll_adjustments() handles the emission. Implementation of this signal is optional. gtk.Widget.set_set_scroll_adjustments_signal is PyGtk's equivalent to Gtk+/C setting the field set_scroll_adjustments_signal of the GtkWidgetClass of your widget. Basically you have to define a signal "my-signal" in your widget that accepts two gtk.Adjustment objects as parameters, then do MyClass.set_set_scroll_adjustments_signal("my-signal"). Of course you still need to implement the scrolling by monitoring the adjustments and updating the widget's view accordingly, but after that you can add your widget to a scrolled window. > > Thanks, > > Laszlo > > -- Gustavo J. A. M. Carneiro <[EMAIL PROTECTED]> <[EMAIL PROTECTED]> "The universe is always one step beyond logic" -- Frank Herbert _______________________________________________ pygtk mailing list pygtk@daa.com.au http://www.daa.com.au/mailman/listinfo/pygtk Read the PyGTK FAQ: http://faq.pygtk.org/
