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POCTFramesetterSuggestFrameSizeWithConstraints does not limit result to constrain size
 

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  1. POCTFramesetterSuggestFrameSizeWithConstraints does not limit result to constrain size
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    <p>I use the CTFramesetterSuggestFrameSizeWithConstraints function to define the size, my attributed string will need, but the height I get is smaller than it should be and also the width is bigger than the constrainSize.width parameter. Here is my code:</p> <pre><code>CTTextAlignment textAlignment = kCTLeftTextAlignment; CTLineBreakMode lineBreakMode = kCTLineBreakByWordWrapping; CTParagraphStyleSetting paragraphSettings[] = { { kCTParagraphStyleSpecifierAlignment, sizeof(textAlignment), &amp;textAlignment }, { kCTParagraphStyleSpecifierLineBreakMode, sizeof(lineBreakMode), &amp;lineBreakMode } }; CTParagraphStyleRef paragraphStyle = CTParagraphStyleCreate(paragraphSettings, sizeof(paragraphSettings) / sizeof(paragraphSettings[0])); NSMutableAttributedString *attrString = [[[NSMutableAttributedString alloc] initWithString:[authorString stringByAppendingFormat:@" %@", bodyText]] autorelease]; CTFontRef ctfontAuthor = CTFontCreateWithName((CFStringRef)@"Arial-BoldMT", 14.0, NULL); CTFontRef ctfontBody = CTFontCreateWithName((CFStringRef)@"Arial", 14.0, NULL); [attrString addAttribute:(NSString *)kCTParagraphStyleAttributeName value:(id)paragraphStyle range:NSMakeRange(0, [attrString length])]; [attrString addAttribute:(NSString *)kCTFontAttributeName value:(id)ctfontAuthor range:NSMakeRange(0, [authorString length] + 1)]; [attrString addAttribute:(NSString *)kCTFontAttributeName value:(id)ctfontBody range:NSMakeRange([authorString length] + 1, [bodyText length])]; CFRelease(ctfontAuthor); CFRelease(ctfontBody); CFRelease(paragraphStyle); CFRange fitRange; CGSize result = CGSizeZero; CTFramesetterRef framesetter = CTFramesetterCreateWithAttributedString((CFMutableAttributedStringRef)attrString); result = CTFramesetterSuggestFrameSizeWithConstraints(framesetter, CFRangeMake(0, [authorString length] + [bodyText length] + 1), NULL, size, &amp;fitRange); CFRelease(framesetter); return result;// result is the value I need to be constrained to size (229.0, MAXFLOAT) but sometimes it is 231 and some more </code></pre> <p>What am I doing wrong?</p>
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    1. USAnton Filimonov
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