Dynamic NSTextView resizing while keeping Y position constant?

• Nick Zitzmann Dynamic NSTextView resizing while keeping Y position constant? Jun 18 2004, 20:13
  I've searched the archives and didn't come up with anything that
  satisfied what I want to do...
  
  I'm trying to make an NSTextView that automatically resizes itself
  vertically when the user fills it with text to display. But I want it
  to grow in height and not change its Y position. The text view is not
  inside a scroll view.
  
  If I call -setVerticallyResizable: with YES in the text view, then when
  the text view is filled, it increases its size, but it also decreases
  its Y position in the superview, which makes it look like it's going
  off-screen.
  
  I've been pointed to the
  -layoutManager:didCompleteLayoutForTextContainer:atEnd: NSLayoutManager
  delegate method, but I'm not sure about what to look for in this
  method. The boolean from the atEnd: is always YES.
  
  So how can I accomplish this? Does anyone know?
  
  Nick Zitzmann
  <http://www.chronosnet.com/>
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• Izidor Jerebic Re: Dynamic NSTextView resizing while keeping Y position constant? Jun 19 2004, 18:48
  On 18 Jun 2004, at 20:13, Nick Zitzmann wrote:
  

  >
  > I'm trying to make an NSTextView that automatically resizes itself
  > vertically when the user fills it with text to display. But I want it
  > to grow in height and not change its Y position. The text view is not
  > inside a scroll view.
  >
  >
  

  Well, I did it with frame change notifications:
  1. Enable frame change notifications for NSTextView object
  2. Subclass NSTextView to keep old frame (or keep old frame somewhere
  else)
  3. When frame change notification arrives, set the frame origin of
  NSTextView to old origin (set the flag to prevent infinite loop with
  this, because setting the origin will also fire frame change
  notification)
  
  If somebody has come up with simpler approach, I too would like to
  know...
  
  Regards,
  izidor
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• Mike Ferris Re: Dynamic NSTextView resizing while keeping Y position constant? Jun 20 2004, 20:49
  If the text view is set to auto-resize itself vertically, then it may
  be that all you really need to do is make sure that its superview is
  flipped...  If the superview is flipped then the frame origin will be
  at the top-left corner of the text view and when the text view resizes
  itself to fit the text, it will naturally grow from the bottom.
  
  For more sophisticated resizing, you'll need to watch things...  Take a
  look at how TextArea.m in the Sketch example handles this...  It
  watches for textDidChange: notifications as well as using the text
  view's built in horizontally/vertically resizable settings.
  
  Mike
  
  Begin forwarded message:
  
  

  > From: Izidor Jerebic <izidor.jerebic...>
  > Date: June 19, 2004 9:48:24 AM PDT
  > To: Nick Zitzmann <nick...>
  > Cc: <cocoa-dev...>
  > Subject: Re: Dynamic NSTextView resizing while keeping Y position
  > constant?
  >
  > On 18 Jun 2004, at 20:13, Nick Zitzmann wrote:
  >>
  >> I'm trying to make an NSTextView that automatically resizes itself
  >> vertically when the user fills it with text to display. But I want it
  >> to grow in height and not change its Y position. The text view is not
  >> inside a scroll view.
  >>
  >>
  > Well, I did it with frame change notifications:
  > 1. Enable frame change notifications for NSTextView object
  > 2. Subclass NSTextView to keep old frame (or keep old frame somewhere
  > else)
  > 3. When frame change notification arrives, set the frame origin of
  > NSTextView to old origin (set the flag to prevent infinite loop with
  > this, because setting the origin will also fire frame change
  > notification)
  >
  > If somebody has come up with simpler approach, I too would like to
  > know...
  >
  > Regards,
  > izidor
  > _______________________________________________
  > cocoa-dev mailing list | <cocoa-dev...>
  > Help/Unsubscribe/Archives:
  > http://www.lists.apple.com/mailman/listinfo/cocoa-dev
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• Nick Zitzmann [SOLVED] Re: Dynamic NSTextView resizing while keeping Y position constant? Jun 21 2004, 02:22
  On Jun 20, 2004, at 12:49 PM, Mike Ferris wrote:
  
  

  > If the text view is set to auto-resize itself vertically, then it may
  > be that all you really need to do is make sure that its superview is
  > flipped...  If the superview is flipped then the frame origin will be
  > at the top-left corner of the text view and when the text view resizes
  > itself to fit the text, it will naturally grow from the bottom.
  

  
  Thanks Mike! Your solution worked for me.
  
  Nick Zitzmann
  <http://www.chronosnet.com/>
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