I want to do some drawing of NSAttributedStrings in fixed-width boxes, but am having trouble calculating the right height they&#39;ll take up when drawn. So far, I&#39;ve tried:

1. Calling &lt;code&gt;- (NSSize) size&lt;/code&gt;, but the results are useless (for this purpose), as they&#39;ll give whatever width the string desires.

2. Calling &lt;code&gt;- (void)drawWithRect:(NSRect)rect options:(NSStringDrawingOptions)options&lt;/code&gt; with a rect shaped to the width I want and &lt;code&gt;NSStringDrawingUsesLineFragmentOrigin&lt;/code&gt; in the options, exactly as I&#39;m using in my drawing. The results are ... difficult to understand; certainly not what I&#39;m looking for. (As is pointed out in a number of places, including &lt;A HREF=&quot;http://lists.apple.com/archives/cocoa-dev/2006/Apr/msg01540.html&quot;&gt;this&lt;/a&gt; Cocoa-Dev thread).

3. Creating a temporary NSTextView and doing:  
    &lt;code&gt;[[tmpView textStorage] setAttributedString:aString];  
    [tmpView setHorizontallyResizable:NO];  
    [tmpView sizeToFit]; &lt;/code&gt;  
When I query the frame of tmpView, the width is still as desired, and the height is often correct ... until I get to longer strings, when it&#39;s often half the size that&#39;s required. (There doesn&#39;t seem to be a max size being hit: one frame will be 273.0 high (about 300 too short), the other will be 478.0 (only 60-ish too short)).

I&#39;d appreciate any pointers, if anyone else has managed this.




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How to get height for NSAttributedString at a fixed width