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Merge branch 'charlesmchen/imageEditorCrop3'

Browse Source
pull/2/head
Matthew Chen 6 years ago
parent 42a92bd032 0ce84b7929
commit 7caa29e471
6 changed files with 176 additions and 75 deletions
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9
SignalMessaging/ViewControllers/AttachmentApprovalViewController.swift
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@ -1324,13 +1324,20 @@ extension AttachmentPrepViewController: UIScrollViewDelegate {
// MARK: -
extension AttachmentPrepViewController: ImageEditorViewDelegate {
public func imageEditor(presentFullScreenOverlay viewController: UIViewController) {
public func imageEditor(presentFullScreenOverlay viewController: UIViewController,
withNavigation: Bool) {
if withNavigation {
let navigationController = OWSNavigationController(rootViewController: viewController)
navigationController.modalPresentationStyle = .overFullScreen
self.present(navigationController, animated: true) {
// Do nothing.
}
} else {
self.present(viewController, animated: true) {
// Do nothing.
}
}
}
}

2
SignalMessaging/Views/ImageEditor/ImageEditorCanvasView.swift
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@ -91,7 +91,7 @@ public class ImageEditorCanvasView: UIView {
strongSelf.updateAllContent()
}
clipView.addSubview(contentView)
contentView.ows_autoPinToSuperviewEdges()
contentView.autoPinEdgesToSuperviewEdges()
updateLayout()

187
SignalMessaging/Views/ImageEditor/ImageEditorCropViewController.swift
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@ -36,12 +36,12 @@ class ImageEditorCropViewController: OWSViewController {
case topLeft, topRight, bottomLeft, bottomRight
}
private class CropCornerView: UIView {
private class CropCornerView: OWSLayerView {
let cropRegion: CropRegion
init(cropRegion: CropRegion) {
self.cropRegion = cropRegion
super.init(frame: .zero)
super.init()
}
@available(*, unavailable, message: "use other init() instead.")
@ -81,35 +81,44 @@ class ImageEditorCropViewController: OWSViewController {
override func loadView() {
self.view = UIView()
if (UIAccessibilityIsReduceTransparencyEnabled()) {
self.view.backgroundColor = UIColor(white: 0.5, alpha: 0.5)
} else {
let alpha = OWSNavigationBar.backgroundBlurMutingFactor
self.view.backgroundColor = UIColor(white: 0.5, alpha: alpha)
self.view.backgroundColor = .black
// MARK: - Buttons
let blurEffectView = UIVisualEffectView(effect: Theme.barBlurEffect)
blurEffectView.layer.zPosition = -1
self.view.addSubview(blurEffectView)
blurEffectView.autoPinEdgesToSuperviewEdges()
// TODO: Apply icons.
let doneButton = OWSButton(title: "Done") { [weak self] in
self?.didTapBackButton()
}
let rotate90Button = OWSButton(title: "Rotate 90°") { [weak self] in
self?.rotate90ButtonPressed()
}
let rotate45Button = OWSButton(title: "Rotate 45°") { [weak self] in
self?.rotate45ButtonPressed()
}
let resetButton = OWSButton(title: "Reset") { [weak self] in
self?.resetButtonPressed()
}
let zoom2xButton = OWSButton(title: "Zoom 2x") { [weak self] in
self?.zoom2xButtonPressed()
}
let stackView = UIStackView()
stackView.axis = .vertical
stackView.alignment = .fill
stackView.spacing = 16
stackView.layoutMargins = UIEdgeInsets(top: 16, left: 20, bottom: 16, right: 20)
stackView.isLayoutMarginsRelativeArrangement = true
self.view.addSubview(stackView)
stackView.ows_autoPinToSuperviewEdges()
// MARK: - Header
navigationItem.leftBarButtonItem = UIBarButtonItem(barButtonSystemItem: .stop,
target: self,
action: #selector(didTapBackButton))
let header = UIStackView(arrangedSubviews: [
UIView.hStretchingSpacer(),
resetButton,
doneButton
])
header.axis = .horizontal
header.spacing = 16
header.backgroundColor = .clear
header.isOpaque = false
// MARK: - Canvas & Wrapper
let wrapperView = UIView.container()
wrapperView.backgroundColor = .clear
wrapperView.isOpaque = false
stackView.addArrangedSubview(wrapperView)
// TODO: We could mask the clipped region with a semi-transparent overlay like WA.
clipView.clipsToBounds = true
@ -135,35 +144,37 @@ class ImageEditorCropViewController: OWSViewController {
strongSelf.updateContent()
}
clipView.addSubview(contentView)
contentView.ows_autoPinToSuperviewEdges()
contentView.autoPinEdgesToSuperviewEdges()
let rotate90Button = OWSButton()
rotate90Button.setTitle(NSLocalizedString("IMAGE_EDITOR_ROTATE_90_BUTTON", comment: "Label for button that rotates image 90 degrees."),
for: .normal)
rotate90Button.block = { [weak self] in
self?.rotate90ButtonPressed()
}
// MARK: - Footer
let rotate45Button = OWSButton()
rotate45Button.setTitle(NSLocalizedString("IMAGE_EDITOR_ROTATE_45_BUTTON", comment: "Label for button that rotates image 45 degrees."),
for: .normal)
rotate45Button.block = { [weak self] in
self?.rotate45ButtonPressed()
}
let footer = UIStackView(arrangedSubviews: [
rotate90Button,
rotate45Button,
UIView.hStretchingSpacer(),
zoom2xButton
])
footer.axis = .horizontal
footer.spacing = 16
footer.backgroundColor = .clear
footer.isOpaque = false
let resetButton = OWSButton()
resetButton.setTitle(NSLocalizedString("IMAGE_EDITOR_RESET_BUTTON", comment: "Label for button that resets crop & rotation state."),
for: .normal)
resetButton.block = { [weak self] in
self?.resetButtonPressed()
}
let stackView = UIStackView(arrangedSubviews: [
header,
wrapperView,
footer
])
stackView.axis = .vertical
stackView.alignment = .fill
stackView.spacing = 24
stackView.layoutMargins = UIEdgeInsets(top: 16, left: 20, bottom: 16, right: 20)
stackView.isLayoutMarginsRelativeArrangement = true
self.view.addSubview(stackView)
stackView.autoPinEdgesToSuperviewEdges()
let zoom2xButton = OWSButton()
zoom2xButton.setTitle("Zoom 2x",
for: .normal)
zoom2xButton.block = { [weak self] in
self?.zoom2xButtonPressed()
}
// MARK: - Crop View
// Add crop view last so that it appears in front of the content.
cropView.setContentHuggingLow()
cropView.setCompressionResistanceLow()
@ -189,19 +200,14 @@ class ImageEditorCropViewController: OWSViewController {
}
}
let footer = UIStackView(arrangedSubviews: [rotate90Button, rotate45Button, resetButton, zoom2xButton])
footer.axis = .horizontal
footer.spacing = 16
footer.backgroundColor = .clear
footer.isOpaque = false
stackView.addArrangedSubview(footer)
setCropViewAppearance()
updateClipViewLayout()
configureGestures()
}
private static let desiredCornerSize: CGFloat = 30
private static let desiredCornerSize: CGFloat = 24
private static let minCropSize: CGFloat = desiredCornerSize * 2
private var cornerSize = CGSize.zero
@ -219,6 +225,72 @@ class ImageEditorCropViewController: OWSViewController {
private var cropViewConstraints = [NSLayoutConstraint]()
private func setCropViewAppearance() {
// TODO: Tune the size.
let cornerSize = CGSize(width: min(clipView.width() * 0.5, ImageEditorCropViewController.desiredCornerSize),
height: min(clipView.height() * 0.5, ImageEditorCropViewController.desiredCornerSize))
self.cornerSize = cornerSize
for cropCornerView in cropCornerViews {
let cornerThickness: CGFloat = 2
let shapeLayer = CAShapeLayer()
cropCornerView.layer.addSublayer(shapeLayer)
shapeLayer.fillColor = UIColor.white.cgColor
shapeLayer.strokeColor = nil
cropCornerView.layoutCallback = { (view) in
let shapeFrame = view.bounds.insetBy(dx: -cornerThickness, dy: -cornerThickness)
shapeLayer.frame = shapeFrame
let bezierPath = UIBezierPath()
switch cropCornerView.cropRegion {
case .topLeft:
bezierPath.addRegion(withPoints: [
CGPoint.zero,
CGPoint(x: shapeFrame.width - cornerThickness, y: 0),
CGPoint(x: shapeFrame.width - cornerThickness, y: cornerThickness),
CGPoint(x: cornerThickness, y: cornerThickness),
CGPoint(x: cornerThickness, y: shapeFrame.height - cornerThickness),
CGPoint(x: 0, y: shapeFrame.height - cornerThickness)
])
case .topRight:
bezierPath.addRegion(withPoints: [
CGPoint(x: shapeFrame.width, y: 0),
CGPoint(x: shapeFrame.width, y: shapeFrame.height - cornerThickness),
CGPoint(x: shapeFrame.width - cornerThickness, y: shapeFrame.height - cornerThickness),
CGPoint(x: shapeFrame.width - cornerThickness, y: cornerThickness),
CGPoint(x: cornerThickness, y: cornerThickness),
CGPoint(x: cornerThickness, y: 0)
])
case .bottomLeft:
bezierPath.addRegion(withPoints: [
CGPoint(x: 0, y: shapeFrame.height),
CGPoint(x: 0, y: cornerThickness),
CGPoint(x: cornerThickness, y: cornerThickness),
CGPoint(x: cornerThickness, y: shapeFrame.height - cornerThickness),
CGPoint(x: shapeFrame.width - cornerThickness, y: shapeFrame.height - cornerThickness),
CGPoint(x: shapeFrame.width - cornerThickness, y: shapeFrame.height)
])
case .bottomRight:
bezierPath.addRegion(withPoints: [
CGPoint(x: shapeFrame.width, y: shapeFrame.height),
CGPoint(x: cornerThickness, y: shapeFrame.height),
CGPoint(x: cornerThickness, y: shapeFrame.height - cornerThickness),
CGPoint(x: shapeFrame.width - cornerThickness, y: shapeFrame.height - cornerThickness),
CGPoint(x: shapeFrame.width - cornerThickness, y: cornerThickness),
CGPoint(x: shapeFrame.width, y: cornerThickness)
])
default:
owsFailDebug("Invalid crop region: \(cropCornerView.cropRegion)")
}
shapeLayer.path = bezierPath.cgPath
}
}
cropView.addBorder(with: .white)
}
private func updateCropViewLayout() {
NSLayoutConstraint.deactivate(cropViewConstraints)
cropViewConstraints.removeAll()
@ -229,9 +301,6 @@ class ImageEditorCropViewController: OWSViewController {
self.cornerSize = cornerSize
for cropCornerView in cropCornerViews {
cropViewConstraints.append(contentsOf: cropCornerView.autoSetDimensions(to: cornerSize))
cropCornerView.addRedBorder()
cropView.addRedBorder()
}
if !isCropGestureActive {
@ -268,8 +337,6 @@ class ImageEditorCropViewController: OWSViewController {
}
private func applyTransform() {
Logger.verbose("")
let viewSize = contentView.bounds.size
contentView.layer.setAffineTransform(transform.affineTransform(viewSize: viewSize))
}

11
SignalMessaging/Views/ImageEditor/ImageEditorView.swift
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@ -6,7 +6,8 @@ import UIKit
@objc
public protocol ImageEditorViewDelegate: class {
func imageEditor(presentFullScreenOverlay viewController: UIViewController)
func imageEditor(presentFullScreenOverlay viewController: UIViewController,
withNavigation: Bool)
}
// MARK: -
@ -68,7 +69,7 @@ public class ImageEditorView: UIView {
return false
}
self.addSubview(canvasView)
canvasView.ows_autoPinToSuperviewEdges()
canvasView.autoPinEdgesToSuperviewEdges()
self.isUserInteractionEnabled = true
@ -571,7 +572,8 @@ public class ImageEditorView: UIView {
// let maxTextWidthPoints = canvasView.imageView.width() * ImageEditorTextItem.kDefaultUnitWidth
let textEditor = ImageEditorTextViewController(delegate: self, textItem: textItem, maxTextWidthPoints: maxTextWidthPoints)
self.delegate?.imageEditor(presentFullScreenOverlay: textEditor)
self.delegate?.imageEditor(presentFullScreenOverlay: textEditor,
withNavigation: true)
}
// MARK: - Crop Tool
@ -596,7 +598,8 @@ public class ImageEditorView: UIView {
}
let cropTool = ImageEditorCropViewController(delegate: self, model: model, srcImage: srcImage, previewImage: previewImage)
self.delegate?.imageEditor(presentFullScreenOverlay: cropTool)
self.delegate?.imageEditor(presentFullScreenOverlay: cropTool,
withNavigation: false)
}}
// MARK: -

14
SignalMessaging/Views/OWSButton.swift
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@ -1,5 +1,5 @@
//
// Copyright (c) 2018 Open Whisper Systems. All rights reserved.
// Copyright (c) 2019 Open Whisper Systems. All rights reserved.
//
import UIKit
@ -15,8 +15,18 @@ public class OWSButton: UIButton {
@objc
init(block: @escaping () -> Void = { }) {
super.init(frame: .zero)
self.block = block
addTarget(self, action: #selector(didTap), for: .touchUpInside)
}
@objc
init(title: String, block: @escaping () -> Void = { }) {
super.init(frame: .zero)
self.block = block
self.addTarget(self, action: #selector(didTap), for: .touchUpInside)
addTarget(self, action: #selector(didTap), for: .touchUpInside)
setTitle(title, for: .normal)
}
public required init?(coder aDecoder: NSCoder) {

14
SignalMessaging/categories/UIView+OWS.swift
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@ -238,3 +238,17 @@ public extension CGAffineTransform {
return rotated(by: angleRadians)
}
}
public extension UIBezierPath {
public func addRegion(withPoints points: [CGPoint]) {
guard let first = points.first else {
owsFailDebug("No points.")
return
}
move(to: first)
for point in points.dropFirst() {
addLine(to: point)
}
addLine(to: first)
}
}

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