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DTCoreText

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wushenghua
2014-09-09 11:56:34 +08:00
parent 795aaaa055
commit dc493126c7
5 changed files with 42 additions and 4 deletions
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Pods/DTCoreText/Core/Source/DTAttributedTextContentView.m
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+22 -2
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@@ -639,7 +639,18 @@ static Class _layerClassToUseForDTAttributedTextContentView = nil;
- (CGSize)suggestedFrameSizeToFitEntireStringConstraintedToWidth:(CGFloat)width
{
// create a temporary frame, will be cached by the layouter for the given rect
// // create a temporary frame, will be cached by the layouter for the given rect
// CGRect rect = [self _frameForLayoutFrameConstraintedToWidth:width];
// DTCoreTextLayoutFrame *tmpLayoutFrame = [self.layouter layoutFrameWithRect:rect range:NSMakeRange(0, 0)];
//
// // assign current layout frame properties to tmpLayoutFrame
// tmpLayoutFrame.numberOfLines = _numberOfLines;
// tmpLayoutFrame.lineBreakMode = _lineBreakMode;
// tmpLayoutFrame.truncationString = _truncationString;
//
// // we have a layout frame and from this we get the needed size
// return CGSizeMake(tmpLayoutFrame.frame.size.width + _edgeInsets.left + _edgeInsets.right, CGRectGetMaxY(tmpLayoutFrame.frame) + _edgeInsets.bottom);
// create a temporary frame, will be cached by the layouter for the given rect
CGRect rect = [self _frameForLayoutFrameConstraintedToWidth:width];
DTCoreTextLayoutFrame *tmpLayoutFrame = [self.layouter layoutFrameWithRect:rect range:NSMakeRange(0, 0)];
@@ -648,8 +659,17 @@ static Class _layerClassToUseForDTAttributedTextContentView = nil;
tmpLayoutFrame.lineBreakMode = _lineBreakMode;
tmpLayoutFrame.truncationString = _truncationString;
// Note: this returns an unreliable measure prior to 4.2 for very long documents
CGSize neededSize = CTFramesetterSuggestFrameSizeWithConstraints(self.layouter.framesetter, CFRangeMake(0, 0), NULL,
CGSizeMake(width, CGFLOAT_MAX),
NULL);
// round up because generally we don't want non-integer view sizes
neededSize.width = ceilf(neededSize.width);
neededSize.height = ceilf(neededSize.height);
// we have a layout frame and from this we get the needed size
return CGSizeMake(tmpLayoutFrame.frame.size.width + _edgeInsets.left + _edgeInsets.right, CGRectGetMaxY(tmpLayoutFrame.frame) + _edgeInsets.bottom);
return CGSizeMake(neededSize.width + _edgeInsets.left + _edgeInsets.right, neededSize.height + _edgeInsets.bottom);
}
#pragma mark Properties