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Throw away all subcomponents of the text kit renderer if constraints are changing

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Throw away the all subcomponents to create them with the new constrained size new as well as let the truncater do it's job again for the new constrained size. This is necessary as after a truncation did happen the context would use the truncated string and not the original string to truncate based on the new constrained size
This commit is contained in:
Michael Schneider
2016-07-14 15:11:10 -07:00
parent f95790f280
commit bbc957bce5
2 changed files with 13 additions and 10 deletions
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AsyncDisplayKit/TextKit/ASTextKitRenderer.mm
+8 -8
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@@ -123,14 +123,14 @@ static NSCharacterSet *_defaultAvoidTruncationCharacterSet()
if (!CGSizeEqualToSize(constrainedSize, _constrainedSize)) {
_sizeIsCalculated = NO;
_constrainedSize = constrainedSize;
// If the context isn't created yet, it will be initialized with the appropriate size when next accessed.
if (_context || _fontSizeAdjuster) {
// If we're updating an existing context, make sure to use the same inset logic used during initialization.
// This codepath allows us to reuse the
CGSize shadowConstrainedSize = [[self shadower] insetSizeWithConstrainedSize:constrainedSize];
if (_context) _context.constrainedSize = shadowConstrainedSize;
if (_fontSizeAdjuster) _fontSizeAdjuster.constrainedSize = shadowConstrainedSize;
}
// Throw away the all subcomponents to create them with the new constrained size new as well as let the
// truncater do it's job again for the new constrained size. This is necessary as after a truncation did happen
// the context would use the truncated string and not the original string to truncate based on the new
// constrained size
_context = nil;
_truncater = nil;
_fontSizeAdjuster = nil;
}
}