> I think there are times when it's appropriate to have wrapper objects - that > are view related - for your model objects. In an image browser, it's likely > that there is a "thumbnail" object that draws "image" objects.
Yeah, maybe "view-related wrapper objects for model objects" is the right term. In your image browser example, this problem sounds as follows: where to store the cached thumbnail images, to avoid re-creating them anew in each drawRect call? Also, if a thumbnail is in process of dragging inside the custom view, where to save the flag that the thumbnail should be highlighted, the next time we draw it in drawRect? I thought this kind of problem should be well-known and commonplace among Cocoa developers... > So maybe your custom view creates "thumbnails" for the shapes it needs to > draw and keeps the view-related properties and states in those objects - > instead of adding them to the shape objects themselves? It's a little crude > - but from what I can understand about your problem - it could be a place > for you to start separating the model and view in your design. I am not sure I understood this phrase. Why is it crude? Anyway, I am looking to solve the problem in the standard way, not reinvent anything. On Thu, Aug 28, 2008 at 1:03 PM, Cathy Shive <[EMAIL PROTECTED]> wrote: > > On Aug 28, 2008, at 11:06 AM, Oleg Krupnov wrote: > >> In other words, I need a way to associate additional >> custom-view-specific properties with model object, without adding them >> as transitive properties to the model. What is the best way to do >> this? Or maybe your point is that this is a bad idea at all and such >> problem should not arise, and I need to include everything in the >> model? What is the standard workaround suggested in Cocoa? > > Hi Oleg, > > > > HTH, > Cathy > > > > > > > > > > > > _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
