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Hi all,
I'm attempting a seemingly trivial task that is proving sufficiently
cumbersome that I wonder whether I am missing some shortcut. ("Easy
things should be easy, hard things should be possible," right?) Given
that I am a relative newcomer to AppKit this is not at all improbable.
I have an NSTabView in a window and want to size it (and,
subsequently, the window) to fully display the current tab view item's
content view (i.e. [tabViewItem view]).
What I am currently doing, more or less, is:
1) Calculate the proper enclosing rect for the content view's
subviews. Easy enough, but have to do manually since -sizeToFit is
declared on NSControl, not NSView.
2) Set the content view's frame appropriately.
3) Resize the NSTabView to match. Here is where it gets tricky: as
far as I can tell there is no method along the lines of
"setFrameForContentRect" for NSTabView. So I end up getting the old
frame and old contentRect, storing the origin, calculating the offsets
and insets for the contentRect vis-a-vis the frame, calculating a new
frame using the old origin, the derived offsets and insets, and the
previously calculated content view frame, and finally setting the new
frame.
4) Resize the NSWindow, here taking advantage of
- -frameRectForContentRect to simplify calculations.
This sequence, particularly step #3, seems rather more complicated
than I would have expected for something that I've got to believe is a
fairly common problem. (What I want in the end is a tab view whose
sizing behavior acts like the System Preferences application.)
Am I missing something? Google only turns up a recent Stack Overflow
question along related lines but with no suggested solution, as well
as a rather vague sentence on cocoadev.com: "Of course, resizing the
window would be helpful and if you really want to, make the tabview
switch to a blank tab as the window is resizing to get the Sys Prefs
effect." A search for NSTabView on the devforums reveals only six
(unrelated) threads.
Thanks!
- --
Conrad Shultz
Synthetiq Solutions
www.synthetiqsolutions.com
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