On Mar 30, 2011, at 9:01 PM, Graham Cox wrote: > Hi all, > > I have a situation where I present a sheet dialog. The sheet asks the user > for some input values to perform a "polar duplicate" of a graphic object in > the underlying document (number of copies, rotation increment, etc). One of > the parameters is the centre point, and I figure a nice way to allow the user > to set this is to allow them simply to click in the document which enters the > value of that point into the dialog's text fields. > > The problem is of course, how to do this while the sheet is showing, since it > grabs all the events. It would be acceptable (and probably necessary) to have > a special mode a bit like Color Panel's sampling click mode for doing this. > > Just looking for inspiration on an approach to take... > > --Graham
Hi Graham, if I understand correctly what you're trying to do, it's similar to an app I wrote quite some time ago. In that app, I was creating fractals and needed a means for the user to set the point around which to zoom in. The way I solved it was to have a smaller-scale version of the full image already rendered on the window, appearing as a custom view on the sheet. Of course, rendering the smaller-scale version need not be done in much detail. That avoids the issue of getting a click through the sheet. Maybe you could try something similar. Hope this helps. WT_______________________________________________ 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 arch...@mail-archive.com
