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Code Issues Projects Releases Wiki Activity

Fix shadow on palette view.

This commit is contained in:
Matthew Chen 2019-03-12 17:04:58 -04:00
parent 337e32a909
commit c0ca55b1e0
1 changed files with 21 additions and 12 deletions
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33
SignalMessaging/Views/ImageEditor/ImageEditorPaletteView.swift
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@ -81,7 +81,9 @@ public class ImageEditorPaletteView: UIView {
private let imageView = UIImageView()
private let selectionView = UIView()
private let selectionWrapper = OWSLayerView()
// imageWrapper is used to host the "selection view".
private let imageWrapper = OWSLayerView()
private let shadowView = UIView()
private var selectionConstraint: NSLayoutConstraint?
private func createContents() {
@ -89,9 +91,18 @@ public class ImageEditorPaletteView: UIView {
self.isOpaque = false
self.layoutMargins = .zero
shadowView.backgroundColor = .black
shadowView.layer.shadowColor = UIColor.black.cgColor
shadowView.layer.shadowRadius = 2.0
shadowView.layer.shadowOpacity = 0.33
shadowView.layer.shadowOffset = .zero
addSubview(shadowView)
if let image = ImageEditorPaletteView.buildPaletteGradientImage() {
imageView.image = image
imageView.layer.cornerRadius = image.size.width * 0.5
let imageRadius = image.size.width * 0.5
imageView.layer.cornerRadius = imageRadius
shadowView.layer.cornerRadius = imageRadius
imageView.clipsToBounds = true
} else {
owsFailDebug("Missing image.")
@ -102,29 +113,27 @@ public class ImageEditorPaletteView: UIView {
imageView.autoPinEdgesToSuperviewEdges(with: UIEdgeInsets(top: margin, left: margin, bottom: margin, right: margin))
imageView.layer.borderColor = UIColor.white.cgColor
imageView.layer.borderWidth = CGHairlineWidth()
imageView.layer.shadowColor = UIColor.black.cgColor
imageView.layer.shadowRadius = 2.0
imageView.layer.shadowOpacity = 0.33
imageView.layer.shadowOffset = .zero
selectionWrapper.layoutCallback = { [weak self] (view) in
imageWrapper.layoutCallback = { [weak self] (view) in
guard let strongSelf = self else {
return
}
strongSelf.updateState()
}
self.addSubview(selectionWrapper)
selectionWrapper.autoPin(toEdgesOf: imageView)
addSubview(imageWrapper)
imageWrapper.autoPin(toEdgesOf: imageView)
shadowView.autoPin(toEdgesOf: imageView)
selectionView.addBorder(with: .white)
selectionView.layer.cornerRadius = selectionSize / 2
selectionView.autoSetDimensions(to: CGSize(width: selectionSize, height: selectionSize))
selectionWrapper.addSubview(selectionView)
imageWrapper.addSubview(selectionView)
selectionView.autoHCenterInSuperview()
// There must be a better way to pin the selection view's location,
// but I can't find it.
let selectionConstraint = NSLayoutConstraint(item: selectionView,
attribute: .centerY, relatedBy: .equal, toItem: selectionWrapper, attribute: .top, multiplier: 1, constant: 0)
attribute: .centerY, relatedBy: .equal, toItem: imageWrapper, attribute: .top, multiplier: 1, constant: 0)
selectionConstraint.autoInstall()
self.selectionConstraint = selectionConstraint
@ -201,7 +210,7 @@ public class ImageEditorPaletteView: UIView {
owsFailDebug("Missing selectionConstraint.")
return
}
let selectionY = selectionWrapper.height() * selectedValue.palettePhase
let selectionY = imageWrapper.height() * selectedValue.palettePhase
selectionConstraint.constant = selectionY
}