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Pods/ZLPhotoBrowser/Sources/Edit/ZLTextStickerView.swift

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+//
+//  ZLTextStickerView.swift
+//  ZLPhotoBrowser
+//
+//  Created by long on 2020/10/30.
+//
+//  Copyright (c) 2020 Long Zhang <495181165@qq.com>
+//
+//  Permission is hereby granted, free of charge, to any person obtaining a copy
+//  of this software and associated documentation files (the "Software"), to deal
+//  in the Software without restriction, including without limitation the rights
+//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//  copies of the Software, and to permit persons to whom the Software is
+//  furnished to do so, subject to the following conditions:
+//
+//  The above copyright notice and this permission notice shall be included in
+//  all copies or substantial portions of the Software.
+//
+//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+//  THE SOFTWARE.
+
+import UIKit
+
+class ZLTextStickerView: ZLBaseStickerView<ZLTextStickerState> {
+    static let fontSize: CGFloat = 32
+    
+    private static let edgeInset: CGFloat = 10
+    
+    private lazy var imageView: UIImageView = {
+        let view = UIImageView(image: image)
+        view.contentMode = .scaleAspectFit
+        view.clipsToBounds = true
+        return view
+    }()
+    
+    var text: String
+    
+    var textColor: UIColor
+    
+    var style: ZLInputTextStyle
+    
+    var image: UIImage {
+        didSet {
+            imageView.image = image
+        }
+    }
+
+    // Convert all states to model.
+    override var state: ZLTextStickerState {
+        return ZLTextStickerState(
+            text: text,
+            textColor: textColor,
+            style: style,
+            image: image,
+            originScale: originScale,
+            originAngle: originAngle,
+            originFrame: originFrame,
+            gesScale: gesScale,
+            gesRotation: gesRotation,
+            totalTranslationPoint: totalTranslationPoint
+        )
+    }
+    
+    deinit {
+        zl_debugPrint("ZLTextStickerView deinit")
+    }
+    
+    convenience init(state: ZLTextStickerState) {
+        self.init(
+            text: state.text,
+            textColor: state.textColor,
+            style: state.style,
+            image: state.image,
+            originScale: state.originScale,
+            originAngle: state.originAngle,
+            originFrame: state.originFrame,
+            gesScale: state.gesScale,
+            gesRotation: state.gesRotation,
+            totalTranslationPoint: state.totalTranslationPoint,
+            showBorder: false
+        )
+    }
+    
+    init(
+        text: String,
+        textColor: UIColor,
+        style: ZLInputTextStyle,
+        image: UIImage,
+        originScale: CGFloat,
+        originAngle: CGFloat,
+        originFrame: CGRect,
+        gesScale: CGFloat = 1,
+        gesRotation: CGFloat = 0,
+        totalTranslationPoint: CGPoint = .zero,
+        showBorder: Bool = true
+    ) {
+        self.text = text
+        self.textColor = textColor
+        self.style = style
+        self.image = image
+        super.init(originScale: originScale, originAngle: originAngle, originFrame: originFrame, gesScale: gesScale, gesRotation: gesRotation, totalTranslationPoint: totalTranslationPoint, showBorder: showBorder)
+        
+        borderView.addSubview(imageView)
+    }
+    
+    @available(*, unavailable)
+    required init?(coder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+    
+    override func setupUIFrameWhenFirstLayout() {
+        imageView.frame = borderView.bounds.insetBy(dx: Self.edgeInset, dy: Self.edgeInset)
+    }
+    
+    override func tapAction(_ ges: UITapGestureRecognizer) {
+        guard gesIsEnabled else { return }
+        
+        if let timer = timer, timer.isValid {
+            delegate?.sticker(self, editText: text)
+        } else {
+            super.tapAction(ges)
+        }
+    }
+    
+    func changeSize(to newSize: CGSize) {
+        // Revert zoom scale.
+        transform = transform.scaledBy(x: 1 / originScale, y: 1 / originScale)
+        // Revert ges scale.
+        transform = transform.scaledBy(x: 1 / gesScale, y: 1 / gesScale)
+        // Revert ges rotation.
+        transform = transform.rotated(by: -gesRotation)
+        transform = transform.rotated(by: -originAngle.zl.toPi)
+        
+        // Recalculate current frame.
+        let center = CGPoint(x: self.frame.midX, y: self.frame.midY)
+        var frame = self.frame
+        frame.origin.x = center.x - newSize.width / 2
+        frame.origin.y = center.y - newSize.height / 2
+        frame.size = newSize
+        self.frame = frame
+        
+        let oc = CGPoint(x: originFrame.midX, y: originFrame.midY)
+        var of = originFrame
+        of.origin.x = oc.x - newSize.width / 2
+        of.origin.y = oc.y - newSize.height / 2
+        of.size = newSize
+        originFrame = of
+        
+        imageView.frame = borderView.bounds.insetBy(dx: Self.edgeInset, dy: Self.edgeInset)
+        
+        // Readd zoom scale.
+        transform = transform.scaledBy(x: originScale, y: originScale)
+        // Readd ges scale.
+        transform = transform.scaledBy(x: gesScale, y: gesScale)
+        // Readd ges rotation.
+        transform = transform.rotated(by: gesRotation)
+        transform = transform.rotated(by: originAngle.zl.toPi)
+    }
+    
+    class func calculateSize(image: UIImage) -> CGSize {
+        var size = image.size
+        size.width += Self.edgeInset * 2
+        size.height += Self.edgeInset * 2
+        return size
+    }
+}
+
+public class ZLTextStickerState: NSObject {
+    let text: String
+    let textColor: UIColor
+    let style: ZLInputTextStyle
+    let image: UIImage
+    let originScale: CGFloat
+    let originAngle: CGFloat
+    let originFrame: CGRect
+    let gesScale: CGFloat
+    let gesRotation: CGFloat
+    let totalTranslationPoint: CGPoint
+    
+    init(
+        text: String,
+        textColor: UIColor,
+        style: ZLInputTextStyle,
+        image: UIImage,
+        originScale: CGFloat,
+        originAngle: CGFloat,
+        originFrame: CGRect,
+        gesScale: CGFloat,
+        gesRotation: CGFloat,
+        totalTranslationPoint: CGPoint
+    ) {
+        self.text = text
+        self.textColor = textColor
+        self.style = style
+        self.image = image
+        self.originScale = originScale
+        self.originAngle = originAngle
+        self.originFrame = originFrame
+        self.gesScale = gesScale
+        self.gesRotation = gesRotation
+        self.totalTranslationPoint = totalTranslationPoint
+        super.init()
+    }
+}