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Fix another crash in dynamic height calculation

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This commit is contained in:
William Casarin
2023-04-03 09:35:08 -07:00
parent 647c6f8428
commit b63159a29f
1 changed files with 14 additions and 11 deletions
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25
damus/Components/ImageCarousel.swift
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@@ -64,9 +64,12 @@ struct ImageCarousel: View {
view.framePreloadCount = 3
}
.imageModifier({ img in
let fill = calculate_image_fill(geo: geo, img: img, maxHeight: maxHeight, minHeight: minHeight)
let img_size = img.size
let is_animated = img.kf.imageFrameCount != nil
DispatchQueue.main.async {
let fill = calculate_image_fill(geo: geo, img_size: img_size, is_animated: is_animated, maxHeight: maxHeight, minHeight: minHeight)
if let filling = fill.filling {
self.filling = filling
}
@@ -112,32 +115,32 @@ struct ImageFill {
let height: CGFloat
}
func calculate_image_fill(geo: GeometryProxy, img: UIImage, maxHeight: CGFloat, minHeight: CGFloat) -> ImageFill {
let shape = determine_image_shape(img.size)
func calculate_image_fill(geo: GeometryProxy, img_size: CGSize, is_animated: Bool, maxHeight: CGFloat, minHeight: CGFloat) -> ImageFill {
let shape = determine_image_shape(img_size)
let xfactor = geo.size.width / img.size.width
let yfactor = maxHeight / img.size.height
let xfactor = geo.size.width / img_size.width
let yfactor = maxHeight / img_size.height
// calculate scaled image height
// set scale factor and constrain images to minimum 150
// and animations to scaled factor for dynamic size adjustment
switch shape {
case .portrait:
let filling = yfactor <= 1.0
let scaled = img.size.height * xfactor
let scaled = img_size.height * xfactor
let height = filling ? maxHeight : max(scaled, minHeight)
return ImageFill(filling: filling, height: height)
case .square:
let filling = yfactor <= 1.0 && xfactor <= 1.0
let scaled = img.size.height * xfactor
let scaled = img_size.height * xfactor
let height = filling ? maxHeight : max(scaled, minHeight)
return ImageFill(filling: filling, height: height)
case .landscape:
let scaled = img.size.height * xfactor
let scaled = img_size.height * xfactor
let filling = scaled > maxHeight || xfactor < 1.0
let height = img.kf.imageFrameCount != nil ? scaled : filling ? min(maxHeight, scaled) : max(scaled, minHeight)
let height = is_animated ? scaled : filling ? min(maxHeight, scaled) : max(scaled, minHeight)
return ImageFill(filling: filling, height: height)
case .unknown:
let height = max(img.size.height, minHeight)
let height = max(img_size.height, minHeight)
return ImageFill(filling: nil, height: height)
}
}