[Qt-interest] Measuring the display width of text

[william.crocker at analog.com]

> 
> Instead, it seems I am forced to call QFontMetrics::size() repeatedly 
> while removing trailing characters from the string until enough 
> characters have been remove for the string to fit a given width.  As you 
> can imagine, performance suffers.
>


Binary search for the width and
cache what you learn.


> Is there no better way?  QFontMetrics::elidedText() comes close to be 
> useful for this, but not quite.
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