Am 22.11.2011 07:18, schrieb Denis Washington: >> The other detail about the 'clear property' or 'invalidate property' >> semantics >> is not entirely clear to me, I suppose one approach would be to fire a signal >> on a GladeProperty when it is supposed to be cleared. >> >> For instance... >> >> o the activatable editor goes ahead and clears >> a property which is actually a binding source (somewhere inside >> the command group which it declares)... possibly by calling >> glade_property_clear (property, use_command = TRUE); >> >> o Then the "clear" or "invalidate" signal is fired on the said >> GladeProperty >> with a 'use-command' parameter as TRUE >> >> o GladeProperty code would implicitly connect to the "invalidate" signal >> on it's set 'source property', when the property is cleared then the >> source >> property attribute can be unset undoably >> >> o Some specific GladeWidgets will be allowed to connect to an >> "invalidate" >> signal on a property of another GladeWidget, if ever more code is >> developed >> which needs to do an action at property invalidation time, this can >> be done >> by listening to this signal and without adding custom code to >> glade-command.c > > This sounds like a sensible approach (although I would really call it > glade_property_invalidate(), as this makes the intention and the > difference to "resetting" a property clearer). I could go ahead and > implement this and see how it works out.
Hi, I wanted to say that I just pulled glade_command_set_property_sensitive() out of the branch and just left GladeWidgetAdaptor::evaluate_property_sensitivity() there. Consequently, the branch is now named "evaluate-sensitivity". I added a call to evaluate_property_sensitivity() to glade_property_set_value_impl(), and for the case that I ported so far (GtkEntry), this works perfectly. As there is no need for it outside of the gbinding branch, I'll add glade_property_invalidate() to that branch directly. I guess I'll also rebase gbinding to the evaluate-property branch to make testing easier. Regards, Denis _______________________________________________ Glade-devel maillist - Glade-devel@lists.ximian.com http://lists.ximian.com/mailman/listinfo/glade-devel
