Thanks, Martin. I ended up doing this:
NSAttributedString* as = [[NSAttributedString alloc] initWithString: s
attributes: attrs];
NSTextStorage* text = self.output.textStorage;
[text beginEditing];
[text appendAttributedString: as];
[text endEditing];
NSRange r = NSMakeRange(text.length, 0);
[self.output scrollRangeToVisible: r];
The text wouldn't update until I called -scrollRangeToVisible. didChangeText
might also have made it show up, but the scroll gives me the added benefit of
scrolling to the new text.
Wish I had noticed that note you quoted. :-)
--
Rick
On Mar 16, 2010, at 22:25:27, Martin Hewitson wrote:
> Hi Rick,
>
> I assume 'output' is your NSTextView. Right?
>
> Firstly, you can append text more easily by doing:
>
> 1) [output insertText:mystring];
>
> or
>
> 2) [[output textStorage] appendAttributedString:myAttributedString];
>
> To get changes to show up, try
>
> [output didChangeText];
>
> You might not need that if you use 1) or 2), not sure. Normally that's for
> subclasses of NSTextView, but the method you are using
> (replaceCharactersInRange:withString:) is an NSText method, I believe. Just
> to quote the documentation for that method:
>
> "In most cases, programmatic modification of the text is best done by
> operating on the text storage directly, using the general methods of
> NSMutableAttributedString."
>
> Best wishes,
>
> Martin
>
> On Mar 17, 2010, at 2:19 AM, Rick Mann wrote:
>
>> Some time ago, I created a little console in my app, displaying characters
>> received on a serial port. For the life of me, I can't find that app to see
>> how I did it.
>>
>> I'm currently using an NSTextView, and calling the following to append text:
>>
>> NSString* existingText = self.output.string;
>> NSRange r = NSMakeRange(existingText.length, 0);
>> [self.output replaceCharactersInRange: r withString: s];
>> r = NSMakeRange(existingText.length, 0);
>> [self.output scrollRangeToVisible: r];
>> [self.output setNeedsDisplay: true];
>>
>> The problem is that it doesn't always show up. I still have to mouse over
>> the area before it'll display (sometimes).
>>
>> Can anyone offer suggestions on how I can improve this behavior? Note: I
>> like NSText view because I can style the text.
>>
>> Thanks!
>>
>> --
>> Rick
>>
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>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Martin Hewitson
> Albert-Einstein-Institut
> Max-Planck-Institut fuer
> Gravitationsphysik und Universitaet Hannover
> Callinstr. 38, 30167 Hannover, Germany
> Tel: +49-511-762-17121, Fax: +49-511-762-5861
> E-Mail: martin.hewit...@aei.mpg.de
> WWW: http://www.aei.mpg.de/~hewitson
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>
>
>
>
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