The request is reasonable.
Please file a bug.
Thanks,
Aki
On 2009/11/11, at 5:53, Bill Cheeseman wrote:
> Over the past 5 years, according to Google, many people have asked why
> -[NSAttributedString boundingRectWithSize:options] does not honor the
> proposed height constraint, but nobody has posted the answer. Can somebody
> explain this to me?
>
> The bounding rect of myMutableAttributedString is {{0, 0}, {450.117, 1285}},
> when the width is constrained to 486 and the height is not contrained (i.e.,
> height is set to 0.0). When I eyeball the string in its window on the screen,
> these dimensions appear to be about right.
>
> With a printing page height of 612, it should take 3 pages to print. To get
> the bounding rect for the first page to print, I run this code fragment in my
> printing NSView object:
>
> NSSize proposedSize = NSMakeSize(486, 612);
> NSLog(@"proposedSize: %@", NSStringFromSize(proposedSize));
> NSRect pageRect = [myMutableAttributedString
> boundingRectWithSize:proposedSize
> options:NSStringDrawingUsesLineFragmentOrigin |
> NSStringDrawingUsesFontLeading |
> NSStringDrawingDisableScreenFontSubstitution];
> NSLog(@"pageRect: %@", NSStringFromRect(pageRect));
>
> These values are logged in the console:
>
> proposedSize: {486, 612]
> pageRect: {{0, 0}, {450.117, 1285}}
>
> Why isn't pageRect being returned as something close to {{0, 0}, {450.117,
> 612}? -- where the 612 page height would of course be expected to come out a
> little less than 612 to accommodate the vertical line heights.
>
> Including NSStringDrawingTruncatesLastVisibleLine in options doesn't change
> anything.
>
> The documentation leaves me with the impression that the whole point of this
> method is to return the largest rect that will honor the size constraint by
> cutting off the text at the height constraint while it is being laid out
> within the width constraint. Have I misunderstood?
>
> --
>
> Bill Cheeseman
> b...@cheeseman.name
>
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