You can use an NSTextView delegate and NSFormatters to adjust the selection as 
it is being made.

On Jun 4, 2012, at 1:10 PM, ecir hana wrote:

> Hello,
> 
> I have a NSTextView and when I select all the text, all the lines get
> highlighted from left to right margin, except the last line which is
> highlighted from left margin to the last character on line. Please, is it
> possible to highlight the last line in the same way as the other ones are,
> i.e. to highlight it from left to very right?
> 
> I think I need to use "setExtraLineFragmentRect:usedRect:textContainer:" of
> NSLayoutManager but I'm not sure how to proceed and if it's even the right
> way of doing this.
> 
> Thanks in advance,
> 
> Ecir Hana
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