Ken, Thank you! The lights are coming on. Things can become quite obvious when they become obvious, can’t they?
Tom Wetmore > On Jul 20, 2015, at 5:13 PM, Ken Thomases <k...@codeweavers.com> wrote: > >> On Jul 20, 2015, at 3:30 PM, Thomas Wetmore <t...@verizon.net> wrote: >> >> I would really like to be able to do resizing using a mouse event loop, but >> have the layout constraints somehow involved. Reading through references for >> NSView I don’t see how to do this. I guess I am looking for a way from >> within the event loop to be able to check whether a proposed new frame >> rectangle for the view obeys the view’s size constraints. > > What you should do when using auto layout is place and size the view using > constraints. Thus moving the view involves modifying the placement > constraints and resizing the view involves modifying the size constraints. > For the size constraints, they should be lower priority than your > minimum-size constraints (if you want to keep those separate). Therefore, no > matter what the drag-tracking code does to those size constraints, your view > still won't go below the minimum size. Of course, a reasonable alternative > is to just use the one set of size constraints and, in your code, disallow > ever setting them below your minimums. You'll have to do something like > that, anyway, to prevent the size constraint constants from going negative, > since that's not allowed. > > You should avoid using any of the -setFrame… methods. I assume that's what > you have been using to place and size the view, but frames set that way get > overridden by the next layout pass. > > Regards, > Ken > _______________________________________________ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
