On 9 Dec 2008, at 5:11 am, Gustavo Pizano wrote:
I have in a view images of ships, and Im able to drag them to
another view which is the sea board, now, what is better, to create
the objects of the ships in the "shipsviewcontainer" and set the
object in the Pasteboard, or, just have representative images in the
"shipsviewcontainer" of each ship, and once dragged to the sea
create the instances of the ship that the images represent. If the
last one is correct Iw as thinking if how to know which Ship Object
the images that is being dragged represents, (maybe by image Size? )
I dunno what do you think its better to do, if I explain my self good.
Use a custom drag type for your ship objects.
Definitely DO NOT use image size as a way to identify the ship! That's
just.... weird.
Learn about MVC (Model-View-Controller). Your ship objects are part of
the model, which could include a list of possible ships, and a list of
those ships which are at sea. Then your drag-n-drop operation really
is just a cover for simply moving ship objects between the two lists.
The shipsviewcontainer and the view that shows them at sea are just
views that visualise the contents of your model.
If you forget about (for the moment) the way stuff is represented on
screen and instead work on developing a model that accurately
represents the various states of the system, you should find that
questions about how to visualise things and other UI-level stuff like
drag-n-drop become obvious. It sounds to me that right now you're
trying to make your views be the model, which is a whole bag of hurt ;-)
hth,
Graham
_______________________________________________
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]
