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Don't generate empty images

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This commit is contained in:
Ali 2021-06-16 23:11:57 +04:00
parent 0f9648fb6c
commit d39ee1493a
1 changed files with 6 additions and 0 deletions
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6
submodules/Display/Source/GenerateImage.swift
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@ -94,6 +94,9 @@ public func generateGrayscaleAlphaMaskImage(image: UIImage) -> UIImage? {
} }
public func generateImage(_ size: CGSize, contextGenerator: (CGSize, CGContext) -> Void, opaque: Bool = false, scale: CGFloat? = nil) -> UIImage? { public func generateImage(_ size: CGSize, contextGenerator: (CGSize, CGContext) -> Void, opaque: Bool = false, scale: CGFloat? = nil) -> UIImage? {
if size.width.isZero || size.height.isZero {
return nil
}
let context = DrawingContext(size: size, scale: scale ?? 0.0, opaque: opaque, clear: false) let context = DrawingContext(size: size, scale: scale ?? 0.0, opaque: opaque, clear: false)
context.withFlippedContext { c in context.withFlippedContext { c in
contextGenerator(context.size, c) contextGenerator(context.size, c)
@ -102,6 +105,9 @@ public func generateImage(_ size: CGSize, contextGenerator: (CGSize, CGContext)
} }
public func generateImage(_ size: CGSize, opaque: Bool = false, scale: CGFloat? = nil, rotatedContext: (CGSize, CGContext) -> Void) -> UIImage? { public func generateImage(_ size: CGSize, opaque: Bool = false, scale: CGFloat? = nil, rotatedContext: (CGSize, CGContext) -> Void) -> UIImage? {
if size.width.isZero || size.height.isZero {
return nil
}
let context = DrawingContext(size: size, scale: scale ?? 0.0, opaque: opaque, clear: false) let context = DrawingContext(size: size, scale: scale ?? 0.0, opaque: opaque, clear: false)
context.withContext { c in context.withContext { c in
rotatedContext(context.size, c) rotatedContext(context.size, c)