At Wed, 24 Jul 2013 15:03:01 -0700, Nick Main wrote: > I created an extended editor-snip% class (also using the graph-snip-mixin) > and put an instance of this on a pasteboard% (altered > via graph-pasteboard-mixin) and then saved the pasteboard to a file. > > Reading this file back into the pasteboard fails (no visible errors > either). Doing the same with a non-extended editor-snip does work, so the > only change is the extension class. > > From documentation and looking at the source (in the mred collection) I > gather that I need to implement, set and register a custom snip-class% > object for my custom editor-snip. > > Since I am not, at this stage, adding anything to editor-snip% I would like > to reuse the editor-snip% write method and the editor-snip-class% read > method. Since editor-snip-class% is a private class I do not understand how > I can extend it. > > Is there a way to reuse the editor-snip-class% functionality without > cut-and-paste? > > I notice that editor-snip-class% uses a private top-level var > "extended-editor-snip%" to hold the actual class of the snip that it > creates. Is there any way to leverage this ? > > I hope that I missed something obvious - there is a lot of machinery in > WXME but nothing that makes this easy.
I'm not sure that this is a good answer, but you could use (send (get-the-snip-class-list) find "wxmedia") to get an instance of `editor-snip-class%'. ____________________ Racket Users list: http://lists.racket-lang.org/users
