Fix visual artifacts when sometimes using decimal assymetric borderRadii #54237
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…dii (facebook#54237) Summary: Before we were adding a single pixel for the stretchable area. in RCTViewComponentView we calculate what percentage is 1 pixel from the entire image to create the unit rectangle: ``` CGRect contentsCenter = CGRect{ CGPoint{imageCapInsets.left / imageSize.width, imageCapInsets.top / imageSize.height}, CGSize{(CGFloat)1.0 / imageSize.width, (CGFloat)1.0 / imageSize.height}}; ``` However sometimes when dividing `1.0 / imageSize.width` we would get a big enough float that causes a rounding error essentially having part of the border bleed into the stretchable region. The easiest way to fix this is give the stretchable region a little more space so to prevent the bleeding. We can do this by rounding the edgeInsets that give the border area its size The alternative is some shockingly complex math to appropriately calculate the most convenient stretchable area size Differential Revision: D85260693
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…dii (facebook#54237) Summary: Before we were adding a single pixel for the stretchable area. in RCTViewComponentView we calculate what percentage is 1 pixel from the entire image to create the unit rectangle: ``` CGRect contentsCenter = CGRect{ CGPoint{imageCapInsets.left / imageSize.width, imageCapInsets.top / imageSize.height}, CGSize{(CGFloat)1.0 / imageSize.width, (CGFloat)1.0 / imageSize.height}}; ``` However sometimes when dividing `1.0 / imageSize.width` we would get a big enough float that causes a rounding error essentially having part of the border bleed into the stretchable region. The easiest way to fix this is give the stretchable region a little more space so to prevent the bleeding. We can do this by rounding the edgeInsets that give the border area its size The alternative is some shockingly complex math to appropriately calculate the most convenient stretchable area size Changelog: [Internal] Reviewed By: cipolleschi Differential Revision: D85260693
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…dii (facebook#54237) Summary: Before we were adding a single pixel for the stretchable area. in RCTViewComponentView we calculate what percentage is 1 pixel from the entire image to create the unit rectangle: ``` CGRect contentsCenter = CGRect{ CGPoint{imageCapInsets.left / imageSize.width, imageCapInsets.top / imageSize.height}, CGSize{(CGFloat)1.0 / imageSize.width, (CGFloat)1.0 / imageSize.height}}; ``` However sometimes when dividing `1.0 / imageSize.width` we would get a big enough float that causes a rounding error essentially having part of the border bleed into the stretchable region. The easiest way to fix this is give the stretchable region a little more space so to prevent the bleeding. We can do this by rounding the edgeInsets that give the border area its size The alternative is some shockingly complex math to appropriately calculate the most convenient stretchable area size Changelog: [Internal] Reviewed By: cipolleschi Differential Revision: D85260693
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…dii (facebook#54237) Summary: Before we were adding a single pixel for the stretchable area. in RCTViewComponentView we calculate what percentage is 1 pixel from the entire image to create the unit rectangle: ``` CGRect contentsCenter = CGRect{ CGPoint{imageCapInsets.left / imageSize.width, imageCapInsets.top / imageSize.height}, CGSize{(CGFloat)1.0 / imageSize.width, (CGFloat)1.0 / imageSize.height}}; ``` However sometimes when dividing `1.0 / imageSize.width` we would get a big enough float that causes a rounding error essentially having part of the border bleed into the stretchable region. The easiest way to fix this is give the stretchable region a little more space so to prevent the bleeding. We can do this by rounding the edgeInsets that give the border area its size The alternative is some shockingly complex math to appropriately calculate the most convenient stretchable area size Changelog: [Internal] Reviewed By: cipolleschi Differential Revision: D85260693
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…dii (facebook#54237) Summary: Before we were adding a single pixel for the stretchable area. in RCTViewComponentView we calculate what percentage is 1 pixel from the entire image to create the unit rectangle: ``` CGRect contentsCenter = CGRect{ CGPoint{imageCapInsets.left / imageSize.width, imageCapInsets.top / imageSize.height}, CGSize{(CGFloat)1.0 / imageSize.width, (CGFloat)1.0 / imageSize.height}}; ``` However sometimes when dividing `1.0 / imageSize.width` we would get a big enough float that causes a rounding error essentially having part of the border bleed into the stretchable region. The easiest way to fix this is give the stretchable region a little more space so to prevent the bleeding. We can do this by rounding the edgeInsets that give the border area its size The alternative is some shockingly complex math to appropriately calculate the most convenient stretchable area size Changelog: [Internal] Reviewed By: cipolleschi Differential Revision: D85260693
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This pull request has been merged in d0015e0. |
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This pull request was successfully merged by @jorge-cab in d0015e0 When will my fix make it into a release? | How to file a pick request? |
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Summary:
Before we were adding a single pixel for the stretchable area. in RCTViewComponentView we calculate what percentage is 1 pixel from the entire image to create the unit rectangle:
However sometimes when dividing
1.0 / imageSize.widthwe would get a big enough float that causes a rounding error essentially having part of the border bleed into the stretchable region.The easiest way to fix this is give the stretchable region a little more space so to prevent the bleeding.
We can do this by just making the border image's width and height into integers by rounding the edgeInsets.
The alternative is some shockingly complex math to appropriately calculate the most convenient stretchable area size
Differential Revision: D85260693