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Make DrawingContext initializer failable

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This commit is contained in:
Ali
2022-11-15 13:40:31 +04:00
parent 59e2c74d42
commit f07c30bd5b
39 changed files with 624 additions and 415 deletions
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8
submodules/SettingsUI/Sources/Themes/SettingsThemeWallpaperNode.swift
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@@ -13,7 +13,9 @@ import GradientBackground
private func whiteColorImage(theme: PresentationTheme, color: UIColor) -> Signal<(TransformImageArguments) -> DrawingContext?, NoError> {
return .single({ arguments in
let context = DrawingContext(size: arguments.drawingSize, clear: true)
guard let context = DrawingContext(size: arguments.drawingSize, clear: true) else {
return nil
}
context.withFlippedContext { c in
c.setFillColor(color.cgColor)
@@ -30,7 +32,9 @@ private func whiteColorImage(theme: PresentationTheme, color: UIColor) -> Signal
}
private let blackColorImage: UIImage? = {
let context = DrawingContext(size: CGSize(width: 1.0, height: 1.0), scale: 1.0, opaque: true, clear: false)
guard let context = DrawingContext(size: CGSize(width: 1.0, height: 1.0), scale: 1.0, opaque: true, clear: false) else {
return nil
}
context.withContext { c in
c.setFillColor(UIColor.black.cgColor)
c.fill(CGRect(origin: CGPoint(), size: CGSize(width: 1.0, height: 1.0)))

4
submodules/SettingsUI/Sources/Themes/ThemeSettingsThemeItem.swift
View File

@@ -172,7 +172,9 @@ private func createThemeImage(theme: PresentationTheme) -> Signal<(TransformImag
return .single(theme)
|> map { theme -> (TransformImageArguments) -> DrawingContext? in
return { arguments in
let context = DrawingContext(size: arguments.drawingSize, scale: arguments.scale ?? 0.0, clear: true)
guard let context = DrawingContext(size: arguments.drawingSize, scale: arguments.scale ?? 0.0, clear: true) else {
return nil
}
let drawingRect = arguments.drawingRect
context.withContext { c in