Swiftgram/submodules/DrawingUI/Sources/DrawingMediaEntity.swift
2023-05-10 17:10:27 +04:00

561 lines
20 KiB
Swift

import Foundation
import UIKit
import Display
import SwiftSignalKit
import TelegramCore
import AccountContext
import MediaEditor
import Photos
public final class DrawingMediaEntity: DrawingEntity, Codable {
public enum Content {
case image(UIImage, PixelDimensions)
case video(String, PixelDimensions)
case asset(PHAsset)
var dimensions: PixelDimensions {
switch self {
case let .image(_, dimensions), let .video(_, dimensions):
return dimensions
case let .asset(asset):
return PixelDimensions(width: Int32(asset.pixelWidth), height: Int32(asset.pixelHeight))
}
}
}
private enum CodingKeys: String, CodingKey {
case uuid
case image
case videoPath
case assetId
case size
case width
case height
case referenceDrawingSize
case position
case scale
case rotation
case mirrored
}
public let uuid: UUID
public let content: Content
public let size: CGSize
public var referenceDrawingSize: CGSize
public var position: CGPoint
public var scale: CGFloat
public var rotation: CGFloat
public var mirrored: Bool
public var color: DrawingColor = DrawingColor.clear
public var lineWidth: CGFloat = 0.0
public var center: CGPoint {
return self.position
}
public var baseSize: CGSize {
return self.size
}
public var isAnimated: Bool {
switch self.content {
case .image:
return false
case .video:
return true
case let .asset(asset):
return asset.mediaType == .video
}
}
public init(content: Content, size: CGSize) {
self.uuid = UUID()
self.content = content
self.size = size
self.referenceDrawingSize = .zero
self.position = CGPoint()
self.scale = 1.0
self.rotation = 0.0
self.mirrored = false
}
public init(from decoder: Decoder) throws {
let container = try decoder.container(keyedBy: CodingKeys.self)
self.uuid = try container.decode(UUID.self, forKey: .uuid)
self.size = try container.decode(CGSize.self, forKey: .size)
let width = try container.decode(Int32.self, forKey: .width)
let height = try container.decode(Int32.self, forKey: .height)
if let videoPath = try container.decodeIfPresent(String.self, forKey: .videoPath) {
self.content = .video(videoPath, PixelDimensions(width: width, height: height))
} else if let imageData = try container.decodeIfPresent(Data.self, forKey: .image), let image = UIImage(data: imageData) {
self.content = .image(image, PixelDimensions(width: width, height: height))
} else if let _ = try container.decodeIfPresent(String.self, forKey: .assetId) {
fatalError()
//self.content = .asset()
} else {
fatalError()
}
self.referenceDrawingSize = try container.decode(CGSize.self, forKey: .referenceDrawingSize)
self.position = try container.decode(CGPoint.self, forKey: .position)
self.scale = try container.decode(CGFloat.self, forKey: .scale)
self.rotation = try container.decode(CGFloat.self, forKey: .rotation)
self.mirrored = try container.decode(Bool.self, forKey: .mirrored)
}
public func encode(to encoder: Encoder) throws {
var container = encoder.container(keyedBy: CodingKeys.self)
try container.encode(self.uuid, forKey: .uuid)
switch self.content {
case let .video(videoPath, dimensions):
try container.encode(videoPath, forKey: .videoPath)
try container.encode(dimensions.width, forKey: .width)
try container.encode(dimensions.height, forKey: .height)
case let .image(image, dimensions):
try container.encodeIfPresent(image.jpegData(compressionQuality: 0.9), forKey: .image)
try container.encode(dimensions.width, forKey: .width)
try container.encode(dimensions.height, forKey: .height)
case let .asset(asset):
try container.encode(asset.localIdentifier, forKey: .assetId)
}
try container.encode(self.size, forKey: .size)
try container.encode(self.referenceDrawingSize, forKey: .referenceDrawingSize)
try container.encode(self.position, forKey: .position)
try container.encode(self.scale, forKey: .scale)
try container.encode(self.rotation, forKey: .rotation)
try container.encode(self.mirrored, forKey: .mirrored)
}
public func duplicate() -> DrawingEntity {
let newEntity = DrawingMediaEntity(content: self.content, size: self.size)
newEntity.referenceDrawingSize = self.referenceDrawingSize
newEntity.position = self.position
newEntity.scale = self.scale
newEntity.rotation = self.rotation
newEntity.mirrored = self.mirrored
return newEntity
}
public weak var currentEntityView: DrawingEntityView?
public func makeView(context: AccountContext) -> DrawingEntityView {
let entityView = DrawingMediaEntityView(context: context, entity: self)
self.currentEntityView = entityView
return entityView
}
public func prepareForRender() {
}
}
public final class DrawingMediaEntityView: DrawingEntityView {
private var mediaEntity: DrawingMediaEntity {
return self.entity as! DrawingMediaEntity
}
var started: ((Double) -> Void)?
private var currentSize: CGSize?
private var isVisible = true
private var isPlaying = false
public var previewView: MediaEditorPreviewView? {
didSet {
if let previewView = self.previewView {
previewView.isUserInteractionEnabled = false
self.addSubview(previewView)
}
}
}
init(context: AccountContext, entity: DrawingMediaEntity) {
super.init(context: context, entity: entity)
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
deinit {
}
override func play() {
self.isVisible = true
self.applyVisibility()
}
override func pause() {
self.isVisible = false
self.applyVisibility()
}
override func seek(to timestamp: Double) {
self.isVisible = false
self.isPlaying = false
}
override func resetToStart() {
self.isVisible = false
self.isPlaying = false
}
override func updateVisibility(_ visibility: Bool) {
self.isVisible = visibility
self.applyVisibility()
}
private func applyVisibility() {
let isPlaying = self.isVisible
if self.isPlaying != isPlaying {
self.isPlaying = isPlaying
}
}
private var didApplyVisibility = false
public override func layoutSubviews() {
super.layoutSubviews()
let size = self.bounds.size
if size.width > 0 && self.currentSize != size {
self.currentSize = size
self.previewView?.frame = CGRect(origin: .zero, size: size)
// let sideSize: CGFloat = size.width
// let boundingSize = CGSize(width: sideSize, height: sideSize)
//
// let imageSize = self.dimensions.aspectFitted(boundingSize)
// self.imageNode.asyncLayout()(TransformImageArguments(corners: ImageCorners(), imageSize: imageSize, boundingSize: imageSize, intrinsicInsets: UIEdgeInsets()))()
// self.imageNode.frame = CGRect(origin: CGPoint(x: floor((size.width - imageSize.width) / 2.0), y: (size.height - imageSize.height) / 2.0), size: imageSize)
// if let animationNode = self.animationNode {
// animationNode.frame = CGRect(origin: CGPoint(x: floor((size.width - imageSize.width) / 2.0), y: (size.height - imageSize.height) / 2.0), size: imageSize)
// animationNode.updateLayout(size: imageSize)
//
// if !self.didApplyVisibility {
// self.didApplyVisibility = true
// self.applyVisibility()
// }
// }
self.update(animated: false)
}
}
override func update(animated: Bool) {
self.center = self.mediaEntity.position
let size = self.mediaEntity.baseSize
let scale = self.mediaEntity.scale
self.bounds = CGRect(origin: .zero, size: size)
self.transform = CGAffineTransformScale(CGAffineTransformMakeRotation(self.mediaEntity.rotation), scale, scale)
self.previewView?.layer.transform = CATransform3DMakeScale(self.mediaEntity.mirrored ? -1.0 : 1.0, 1.0, 1.0)
self.previewView?.frame = self.bounds
super.update(animated: animated)
}
override func updateSelectionView() {
}
override func makeSelectionView() -> DrawingEntitySelectionView? {
return nil
}
@objc func handlePan(_ gestureRecognizer: UIPanGestureRecognizer) {
let delta = gestureRecognizer.translation(in: self.superview)
var updatedPosition = self.mediaEntity.position
switch gestureRecognizer.state {
case .began, .changed:
updatedPosition.x += delta.x
updatedPosition.y += delta.y
gestureRecognizer.setTranslation(.zero, in: self.superview)
default:
break
}
self.mediaEntity.position = updatedPosition
self.update(animated: false)
}
@objc func handlePinch(_ gestureRecognizer: UIPinchGestureRecognizer) {
switch gestureRecognizer.state {
case .began, .changed:
let scale = gestureRecognizer.scale
self.mediaEntity.scale = self.mediaEntity.scale * scale
self.update(animated: false)
gestureRecognizer.scale = 1.0
default:
break
}
}
@objc func handleRotate(_ gestureRecognizer: UIRotationGestureRecognizer) {
var updatedRotation = self.mediaEntity.rotation
var rotation: CGFloat = 0.0
switch gestureRecognizer.state {
case .began:
break
case .changed:
rotation = gestureRecognizer.rotation
updatedRotation += rotation
gestureRecognizer.rotation = 0.0
case .ended, .cancelled:
break
default:
break
}
self.mediaEntity.rotation = updatedRotation
self.update(animated: false)
}
}
//final class DrawingStickerEntititySelectionView: DrawingEntitySelectionView, UIGestureRecognizerDelegate {
// private let border = SimpleShapeLayer()
// private let leftHandle = SimpleShapeLayer()
// private let rightHandle = SimpleShapeLayer()
//
// private var panGestureRecognizer: UIPanGestureRecognizer!
//
// override init(frame: CGRect) {
// let handleBounds = CGRect(origin: .zero, size: entitySelectionViewHandleSize)
// let handles = [
// self.leftHandle,
// self.rightHandle
// ]
//
// super.init(frame: frame)
//
// self.backgroundColor = .clear
// self.isOpaque = false
//
// self.border.lineCap = .round
// self.border.fillColor = UIColor.clear.cgColor
// self.border.strokeColor = UIColor(rgb: 0xffffff, alpha: 0.5).cgColor
// self.border.shadowColor = UIColor.black.cgColor
// self.border.shadowRadius = 1.0
// self.border.shadowOpacity = 0.5
// self.border.shadowOffset = CGSize()
// self.layer.addSublayer(self.border)
//
// for handle in handles {
// handle.bounds = handleBounds
// handle.fillColor = UIColor(rgb: 0x0a60ff).cgColor
// handle.strokeColor = UIColor(rgb: 0xffffff).cgColor
// handle.rasterizationScale = UIScreen.main.scale
// handle.shouldRasterize = true
//
// self.layer.addSublayer(handle)
// }
//
// let panGestureRecognizer = UIPanGestureRecognizer(target: self, action: #selector(self.handlePan(_:)))
// panGestureRecognizer.delegate = self
// self.addGestureRecognizer(panGestureRecognizer)
// self.panGestureRecognizer = panGestureRecognizer
//
// self.snapTool.onSnapXUpdated = { [weak self] snapped in
// if let strongSelf = self, let entityView = strongSelf.entityView {
// entityView.onSnapToXAxis(snapped)
// }
// }
//
// self.snapTool.onSnapYUpdated = { [weak self] snapped in
// if let strongSelf = self, let entityView = strongSelf.entityView {
// entityView.onSnapToYAxis(snapped)
// }
// }
//
// self.snapTool.onSnapRotationUpdated = { [weak self] snappedAngle in
// if let strongSelf = self, let entityView = strongSelf.entityView {
// entityView.onSnapToAngle(snappedAngle)
// }
// }
// }
//
// required init?(coder: NSCoder) {
// fatalError("init(coder:) has not been implemented")
// }
//
// var scale: CGFloat = 1.0 {
// didSet {
// self.setNeedsLayout()
// }
// }
//
// override var selectionInset: CGFloat {
// return 18.0
// }
//
// override func gestureRecognizerShouldBegin(_ gestureRecognizer: UIGestureRecognizer) -> Bool {
// return true
// }
//
// private let snapTool = DrawingEntitySnapTool()
//
// private var currentHandle: CALayer?
// @objc private func handlePan(_ gestureRecognizer: UIPanGestureRecognizer) {
// guard let entityView = self.entityView, let entity = entityView.entity as? DrawingStickerEntity else {
// return
// }
// let location = gestureRecognizer.location(in: self)
//
// switch gestureRecognizer.state {
// case .began:
// self.snapTool.maybeSkipFromStart(entityView: entityView, position: entity.position)
//
// if let sublayers = self.layer.sublayers {
// for layer in sublayers {
// if layer.frame.contains(location) {
// self.currentHandle = layer
// self.snapTool.maybeSkipFromStart(entityView: entityView, rotation: entity.rotation)
// return
// }
// }
// }
// self.currentHandle = self.layer
// case .changed:
// let delta = gestureRecognizer.translation(in: entityView.superview)
// let parentLocation = gestureRecognizer.location(in: self.superview)
// let velocity = gestureRecognizer.velocity(in: entityView.superview)
//
// var updatedPosition = entity.position
// var updatedScale = entity.scale
// var updatedRotation = entity.rotation
// if self.currentHandle === self.leftHandle || self.currentHandle === self.rightHandle {
// var deltaX = gestureRecognizer.translation(in: self).x
// if self.currentHandle === self.leftHandle {
// deltaX *= -1.0
// }
// let scaleDelta = (self.bounds.size.width + deltaX * 2.0) / self.bounds.size.width
// updatedScale *= scaleDelta
//
// let newAngle: CGFloat
// if self.currentHandle === self.leftHandle {
// newAngle = atan2(self.center.y - parentLocation.y, self.center.x - parentLocation.x)
// } else {
// newAngle = atan2(parentLocation.y - self.center.y, parentLocation.x - self.center.x)
// }
//
// // let delta = newAngle - updatedRotation
// updatedRotation = newAngle// self.snapTool.update(entityView: entityView, velocity: 0.0, delta: delta, updatedRotation: newAngle)
// } else if self.currentHandle === self.layer {
// updatedPosition.x += delta.x
// updatedPosition.y += delta.y
//
// updatedPosition = self.snapTool.update(entityView: entityView, velocity: velocity, delta: delta, updatedPosition: updatedPosition)
// }
//
// entity.position = updatedPosition
// entity.scale = updatedScale
// entity.rotation = updatedRotation
// entityView.update()
//
// gestureRecognizer.setTranslation(.zero, in: entityView)
// case .ended, .cancelled:
// self.snapTool.reset()
// if self.currentHandle != nil {
// self.snapTool.rotationReset()
// }
// default:
// break
// }
//
// entityView.onPositionUpdated(entity.position)
// }
//
// override func handlePinch(_ gestureRecognizer: UIPinchGestureRecognizer) {
// guard let entityView = self.entityView, let entity = entityView.entity as? DrawingStickerEntity else {
// return
// }
//
// switch gestureRecognizer.state {
// case .began, .changed:
// let scale = gestureRecognizer.scale
// entity.scale = entity.scale * scale
// entityView.update()
//
// gestureRecognizer.scale = 1.0
// default:
// break
// }
// }
//
// override func handleRotate(_ gestureRecognizer: UIRotationGestureRecognizer) {
// guard let entityView = self.entityView, let entity = entityView.entity as? DrawingStickerEntity else {
// return
// }
//
// let velocity = gestureRecognizer.velocity
// var updatedRotation = entity.rotation
// var rotation: CGFloat = 0.0
//
// switch gestureRecognizer.state {
// case .began:
// self.snapTool.maybeSkipFromStart(entityView: entityView, rotation: entity.rotation)
// case .changed:
// rotation = gestureRecognizer.rotation
// updatedRotation += rotation
//
// gestureRecognizer.rotation = 0.0
// case .ended, .cancelled:
// self.snapTool.rotationReset()
// default:
// break
// }
//
// updatedRotation = self.snapTool.update(entityView: entityView, velocity: velocity, delta: rotation, updatedRotation: updatedRotation)
// entity.rotation = updatedRotation
// entityView.update()
//
// entityView.onPositionUpdated(entity.position)
// }
//
// override func point(inside point: CGPoint, with event: UIEvent?) -> Bool {
// return self.bounds.insetBy(dx: -22.0, dy: -22.0).contains(point)
// }
//
// override func layoutSubviews() {
// let inset = self.selectionInset - 10.0
//
// let bounds = CGRect(origin: .zero, size: CGSize(width: entitySelectionViewHandleSize.width / self.scale, height: entitySelectionViewHandleSize.height / self.scale))
// let handleSize = CGSize(width: 9.0 / self.scale, height: 9.0 / self.scale)
// let handlePath = CGPath(ellipseIn: CGRect(origin: CGPoint(x: (bounds.width - handleSize.width) / 2.0, y: (bounds.height - handleSize.height) / 2.0), size: handleSize), transform: nil)
// let lineWidth = (1.0 + UIScreenPixel) / self.scale
//
// let handles = [
// self.leftHandle,
// self.rightHandle
// ]
//
// for handle in handles {
// handle.path = handlePath
// handle.bounds = bounds
// handle.lineWidth = lineWidth
// }
//
// self.leftHandle.position = CGPoint(x: inset, y: self.bounds.midY)
// self.rightHandle.position = CGPoint(x: self.bounds.maxX - inset, y: self.bounds.midY)
//
//
// let radius = (self.bounds.width - inset * 2.0) / 2.0
// let circumference: CGFloat = 2.0 * .pi * radius
// let count = 10
// let relativeDashLength: CGFloat = 0.25
// let dashLength = circumference / CGFloat(count)
// self.border.lineDashPattern = [dashLength * relativeDashLength, dashLength * relativeDashLength] as [NSNumber]
//
// self.border.lineWidth = 2.0 / self.scale
// self.border.path = UIBezierPath(ovalIn: CGRect(origin: CGPoint(x: inset, y: inset), size: CGSize(width: self.bounds.width - inset * 2.0, height: self.bounds.height - inset * 2.0))).cgPath
// }
//}