Fix that the graphics helper method will return nil when scale = 0, match the UIKit behavior
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@ -18,6 +18,10 @@
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static void *kNSGraphicsContextScaleFactorKey;
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static CGContextRef SDCGContextCreateBitmapContext(CGSize size, BOOL opaque, CGFloat scale) {
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if (scale == 0) {
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// Match `UIGraphicsBeginImageContextWithOptions`, reset to the scale factor of the device’s main screen if scale is 0.
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scale = [NSScreen mainScreen].backingScaleFactor;
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}
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size_t width = ceil(size.width * scale);
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size_t height = ceil(size.height * scale);
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if (width < 1 || height < 1) return NULL;
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@ -30,10 +34,6 @@ static CGContextRef SDCGContextCreateBitmapContext(CGSize size, BOOL opaque, CGF
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if (!context) {
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return NULL;
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}
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if (scale == 0) {
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// Match `UIGraphicsBeginImageContextWithOptions`, reset to the scale factor of the device’s main screen if scale is 0.
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scale = [NSScreen mainScreen].backingScaleFactor;
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}
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CGContextScaleCTM(context, scale, scale);
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return context;
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