PDF_Office/PDF Office/PDF Master/KMClass/KMPDFViewController/EditTool/Watermark/Model/KMWatermarkManager.swift

//
//  KMWatermarkManager.swift
//  PDF Reader Pro
//
//  Created by tangchao on 2022/12/19.
//

import Cocoa

enum KMWatermarkKey: String {
    case watermarkType = "watermarkTypeKey"
    
    case text = "WatermarTextKey"
    case textFontSize = "WatermarkOfTextFontSizeKey"
    case textfontStyle = "WatermarkOfTextFontStyleKey"
    case textFontName = "textFontName"
    
    case textColor = "WatermarkTextColorKey"
    case red = "WatermarkOfRedKey"
    case green = "WatermarkOfGreenKey"
    case blue = "WatermarkOfBlueKey"
    
    case imagePath = "WatermarkOfImagePathKey"
    
    case rotate = "WatermarkOfRotationKey"
    case opacity = "WatermarkOfOpacityKey"
    case isScale = "WatermarkOfIsScaleKey"
    case scale = "WatermarkOfScaleKey"
    case verticalMode = "WatermarkOfVerticalModeKey"
    case verticalSpace = "WatermarkOfVerticalSpaceKey"
    case horizontalMode = "WatermarkOfHorizontalModeKey"
    case horizontalSpace = "WatermarkOfHorizontalSpaceKey"
    case isFront = "WatermarkOfIsFrontKey"
    case createDate = "WatermarkOfCreatTemplateDateKey"
    case pageRangeType = "WatermarkOfPageRangeTypeKey"
    case pageRangeString = "WatermarkOfPageStringKey"
    case tileVerticalSpace = "WatermarkTileVerticalSpaceKey"
    case tileHorizontalSpace = "WatermarkTileHorizontalSpaceKey"
    case isTile = "WatermarkOfIsTileKey"
    case lastAddData = "kAddLastWatermarkDataKey1"
    case id = "kWatermarkIDKey"
    case tag = "kWatermarkTagKey"
    case watermarkName = "watermarkNameKey"
    
}

class KMWatermarkManager: NSObject {

    let watermarkFolderPath = NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.applicationSupportDirectory, FileManager.SearchPathDomainMask.userDomainMask, true).last?.stringByAppendingPathComponent(Bundle.main.bundleIdentifier!).stringByAppendingPathComponent("watermark")
    
    let watermarkPlistPath = NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.applicationSupportDirectory, FileManager.SearchPathDomainMask.userDomainMask, true).last?.stringByAppendingPathComponent(Bundle.main.bundleIdentifier!).stringByAppendingPathComponent("watermark").stringByAppendingPathComponent("watermark.plist")
    
    let watermarkImageFolder = NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.applicationSupportDirectory, FileManager.SearchPathDomainMask.userDomainMask, true).last?.stringByAppendingPathComponent(Bundle.main.bundleIdentifier!).stringByAppendingPathComponent("watermark").stringByAppendingPathComponent("image")
    
    static let defaultManager = KMWatermarkManager()
    
    var watermarks: Array<KMPDFWatermarkData> = []
    
    override init() {
        super.init()
        
#if DEBUG
        print("watermarkPlistPath=\(watermarkPlistPath ?? "")")
#endif
        
        if (!FileManager.default.fileExists(atPath: watermarkFolderPath!)) {
            try?FileManager.default.createDirectory(atPath: watermarkFolderPath!, withIntermediateDirectories: true, attributes: nil)
        }
        
        if (!FileManager.default.fileExists(atPath: watermarkImageFolder!)) {
            let create: ()? = try?FileManager.default.createDirectory(atPath: watermarkImageFolder!, withIntermediateDirectories: false)
        }
        
        if (FileManager.default.fileExists(atPath: watermarkPlistPath!)) {
            let dataDict = NSDictionary(contentsOfFile: watermarkPlistPath!)
            for keyIndex in 0 ..< (dataDict?.allKeys.count ?? 0) {
                let key: String = dataDict?.allKeys[keyIndex] as! String
                
                let watermarkDict: NSDictionary = dataDict?.object(forKey: key) as! NSDictionary
                let model = parseDictionary(dict: watermarkDict)
                watermarks.append(model)
            }
            watermarks.sort(){$0.tag > $1.tag}
           
        }
    }
    
    //MARK: - 增删改查
    func addWatermark(watermark: KMPDFWatermarkData) -> Bool {
        if (!FileManager.default.fileExists(atPath: watermarkFolderPath!)) {
            let create: ()? = try?FileManager.default.createDirectory(atPath: watermarkFolderPath!, withIntermediateDirectories: true, attributes: nil)
            if (create == nil) {
                return false
            }
        }
        
        if (!FileManager.default.fileExists(atPath: watermarkPlistPath!)) {
            FileManager.default.createFile(atPath: watermarkPlistPath!, contents: nil)
        }
        
        let dict = NSDictionary(contentsOfFile: watermarkPlistPath!)
        var newDict:NSMutableDictionary!
        if (dict != nil) {
            newDict = NSMutableDictionary(dictionary: dict!)
        } else {
            newDict = NSMutableDictionary()
        }
        
        let watermarkDict = self.parseWaterMark(model: watermark)
        if (watermarkDict.isEmpty) {
            return false
        }
        
        let key: String = watermark.tag
        if newDict.object(forKey: key) != nil {
            newDict.setObject(watermarkDict, forKey: key as NSCopying)
        } else {
            newDict.addEntries(from: [key : watermarkDict])
        }
        
        let result = newDict.write(toFile: watermarkPlistPath!, atomically: true)
        if (result) {
            if (self.watermarks.count < 1) {
                self.watermarks.append(watermark)
            } else {
                self.watermarks.insert(watermark, at: 0)
            }
            watermark.updatePreviewImage()
        }
        return result
    }
    
    func updateWatermark(watermark: KMPDFWatermarkData) -> Bool {
        if (!FileManager.default.fileExists(atPath: watermarkFolderPath!)) {
            let create: ()? = try?FileManager.default.createDirectory(atPath: watermarkFolderPath!, withIntermediateDirectories: false)
            if (create == nil) {
                return false
            }
        }
        
        if (!FileManager.default.fileExists(atPath: watermarkPlistPath!)) {
            FileManager.default.createFile(atPath: watermarkPlistPath!, contents: nil)
        }
        
        var flagModel: KMPDFWatermarkData!
        for model in self.watermarks {
            if (model.tag == watermark.tag) {
                flagModel = model
                break
            }
        }
        
        if (flagModel == nil) {
            return false
        }
        
        let dict = NSDictionary(contentsOfFile: watermarkPlistPath!)
        var newDict:NSMutableDictionary!
        if (dict != nil) {
            newDict = NSMutableDictionary(dictionary: dict!)
        } else {
            newDict = NSMutableDictionary()
        }
        
        let watermarkDict = self.parseWaterMark(model: watermark)
        if (watermarkDict.isEmpty) {
            return false
        }
        
        newDict.setObject(watermarkDict, forKey: flagModel.tag as NSCopying)
        let result = newDict.write(toFile: watermarkPlistPath!, atomically: true)
        if (result) {
            if let index = self.watermarks.firstIndex(of: flagModel) {
                self.watermarks[index] = watermark
            }
            watermark.updatePreviewImage()
        }
        return result
    }
    
    func removeWatermark(watermark: KMPDFWatermarkData) -> Bool {
         
        if (!FileManager.default.fileExists(atPath: watermarkPlistPath!)) {
            return false
        }
        
        let key: String = watermark.tag
        
        let dictionary = NSDictionary(contentsOfFile: watermarkPlistPath!)
        var newDictionary: NSMutableDictionary!
        if (dictionary != nil) {
            newDictionary = NSMutableDictionary(dictionary: dictionary!)
        } else {
            newDictionary = NSMutableDictionary()
        }
        newDictionary.removeObject(forKey: key)
        
        let result = newDictionary.write(toFile: watermarkPlistPath!, atomically: true)
        if (result) {
            if let filePath: String = watermark.imagePath {
                try?FileManager.default.removeItem(atPath: filePath)
            }
            if (self.watermarks.contains(watermark)) {
                self.watermarks.removeObject(watermark)
            }
        }
        return result
    }
    
    func removeAllWatermark() -> Bool {
        if (!FileManager.default.fileExists(atPath: watermarkPlistPath!)) {
            return false
        }
        
        let dictionary = NSDictionary(contentsOfFile: watermarkPlistPath!)
        var newDictionary: NSMutableDictionary!
        if (dictionary != nil) {
            newDictionary = NSMutableDictionary(dictionary: dictionary!)
        } else {
            newDictionary = NSMutableDictionary()
        }
        
        newDictionary.removeAllObjects()
        
        let result = newDictionary.write(toFile: watermarkPlistPath!, atomically: true)
        if (result) {
            self.watermarks.removeAll()
        }
        
        return result
    }
    
    //MARK: - private
    func setDictToWatermarK(dict: NSDictionary, _ model: KMPDFWatermarkData) {
        
        model.watermarkType = (dict.object(forKey: KMWatermarkKey.watermarkType.rawValue) as? CPDFWatermarkType) ?? .text
        
        model.text = (dict.object(forKey: KMWatermarkKey.text.rawValue) as? String)
        model.fontName = (dict.object(forKey: KMWatermarkKey.textFontName.rawValue) as? String) ?? ""
        model.fontStyle = (dict.object(forKey: KMWatermarkKey.textfontStyle.rawValue) as? String) ?? ""
        model.fontSize = (dict.object(forKey: KMWatermarkKey.textFontSize.rawValue) as? CGFloat) ?? 12
 
        if let pathValue = dict.object(forKey: KMWatermarkKey.imagePath.rawValue) {
            let path = watermarkFolderPath?.stringByAppendingPathComponent(pathValue as! String)
            if (FileManager.default.fileExists(atPath: path!)) {
                model.imagePath = path ?? ""
            }
        }
         
        model.isScale = (dict.object(forKey: KMWatermarkKey.isScale.rawValue) as? Bool) ?? false
        model.scale = (dict.object(forKey: KMWatermarkKey.scale.rawValue) as? CGFloat) ?? 1
        model.rotation = dict.object(forKey: KMWatermarkKey.rotate.rawValue) as? CGFloat ?? 0
        model.opacity = (dict.object(forKey: KMWatermarkKey.opacity.rawValue) as? CGFloat) ?? 1
        model.verticalPosition = (dict.object(forKey: KMWatermarkKey.verticalMode.rawValue) as? CPDFWatermarkVerticalPosition) ?? .center
        model.ty = dict.object(forKey: KMWatermarkKey.verticalSpace.rawValue) as? CGFloat ?? 0
        model.horizontalPosition = (dict.object(forKey: KMWatermarkKey.horizontalMode.rawValue) as? CPDFWatermarkHorizontalPosition) ?? .center
        model.tx = dict.object(forKey: KMWatermarkKey.horizontalSpace.rawValue) as? CGFloat ?? 0
        if let textColorKey = dict.object(forKey: KMWatermarkKey.textColor.rawValue) as? String {
            model.textColor = NSColor.km_init(hex: textColorKey)
        } else {
            let red: CGFloat = dict.object(forKey: KMWatermarkKey.red.rawValue) as? CGFloat ?? 0
            let green: CGFloat = dict.object(forKey: KMWatermarkKey.green.rawValue) as? CGFloat ?? 0
            let blue: CGFloat = dict.object(forKey: KMWatermarkKey.blue.rawValue) as? CGFloat ?? 0
            model.textColor = NSColor(red: red, green: green, blue: blue, alpha: 1.0)
        }
        model.isFront = (dict.object(forKey: KMWatermarkKey.isFront.rawValue) as? Bool) ?? false
        model.isTilePage = (dict.object(forKey: KMWatermarkKey.isTile.rawValue) as? Bool) ?? false
        model.horizontalSpacing = (dict.object(forKey: KMWatermarkKey.tileHorizontalSpace.rawValue) as? CGFloat) ?? 0
        model.verticalSpacing = (dict.object(forKey: KMWatermarkKey.tileVerticalSpace.rawValue) as? CGFloat) ?? 0
        model.tag = (dict.object(forKey: KMWatermarkKey.tag.rawValue) as? String) ?? ""
        model.watermarkName = (dict.object(forKey: KMWatermarkKey.watermarkName.rawValue) as? String) ?? ""
        
    }
    
    //MARK: - Parse
    func parseWaterMark(model: KMPDFWatermarkData) -> Dictionary<String, Any> {
        
        var dict: [String : Any] = [:]
        
        if model.watermarkType == .text {
            dict[KMWatermarkKey.watermarkType.rawValue] = "0"
        } else if model.watermarkType == .image {
            dict[KMWatermarkKey.watermarkType.rawValue] = "1"
        }
        
        if let text = model.text {
            dict[KMWatermarkKey.text.rawValue] = text
        }
        dict[KMWatermarkKey.textFontName.rawValue] = model.fontName
        dict[KMWatermarkKey.textfontStyle.rawValue] = model.fontStyle
        dict[KMWatermarkKey.textFontSize.rawValue] = model.fontSize
        if let imagePath = model.imagePath {
            dict[KMWatermarkKey.imagePath.rawValue] = imagePath
        }
        dict[KMWatermarkKey.isFront.rawValue] = model.isFront
        dict[KMWatermarkKey.isScale.rawValue] = model.isScale
        dict[KMWatermarkKey.scale.rawValue] = model.scale
        dict[KMWatermarkKey.opacity.rawValue] = model.opacity
        dict[KMWatermarkKey.rotate.rawValue] = model.rotation
        dict[KMWatermarkKey.verticalMode.rawValue] = model.verticalPosition.rawValue
        dict[KMWatermarkKey.verticalSpace.rawValue] = model.ty
        dict[KMWatermarkKey.horizontalMode.rawValue] = model.horizontalPosition.rawValue
        dict[KMWatermarkKey.horizontalSpace.rawValue] = model.tx
        dict[KMWatermarkKey.textColor.rawValue] = model.textColor.toHex()
        dict[KMWatermarkKey.isTile.rawValue] = model.isTilePage
        dict[KMWatermarkKey.tileVerticalSpace.rawValue] = model.verticalSpacing
        dict[KMWatermarkKey.tileHorizontalSpace.rawValue] = model.horizontalSpacing
        dict[KMWatermarkKey.tag.rawValue] = model.tag
        dict[KMWatermarkKey.watermarkName.rawValue] = model.watermarkName
        
        return dict
    }
    
    private func parseDictionary(dict: NSDictionary) -> KMPDFWatermarkData {
        let model = KMPDFWatermarkData()
         
        model.watermarkType = (dict.object(forKey: KMWatermarkKey.watermarkType.rawValue) as? CPDFWatermarkType) ?? .text
        
        model.text = (dict.object(forKey: KMWatermarkKey.text.rawValue) as? String)
        model.fontName = (dict.object(forKey: KMWatermarkKey.textFontName.rawValue) as? String) ?? ""
        model.fontStyle = (dict.object(forKey: KMWatermarkKey.textfontStyle.rawValue) as? String) ?? ""
        model.fontSize = (dict.object(forKey: KMWatermarkKey.textFontSize.rawValue) as? CGFloat) ?? 12
 
        if let pathValue = dict.object(forKey: KMWatermarkKey.imagePath.rawValue) {
            model.imagePath = pathValue as? String
        }
        
        model.isScale = (dict.object(forKey: KMWatermarkKey.isScale.rawValue) as? Bool) ?? false
        model.scale = (dict.object(forKey: KMWatermarkKey.scale.rawValue) as? CGFloat) ?? 1
        model.rotation = dict.object(forKey: KMWatermarkKey.rotate.rawValue) as? CGFloat ?? 0
        model.opacity = (dict.object(forKey: KMWatermarkKey.opacity.rawValue) as? CGFloat) ?? 1
        model.verticalPosition = (dict.object(forKey: KMWatermarkKey.verticalMode.rawValue) as? CPDFWatermarkVerticalPosition) ?? .center
        model.ty = dict.object(forKey: KMWatermarkKey.verticalSpace.rawValue) as? CGFloat ?? 0
        model.horizontalPosition = (dict.object(forKey: KMWatermarkKey.horizontalMode.rawValue) as? CPDFWatermarkHorizontalPosition) ?? .center
        model.tx = dict.object(forKey: KMWatermarkKey.horizontalSpace.rawValue) as? CGFloat ?? 0
        if let textColorKey = dict.object(forKey: KMWatermarkKey.textColor.rawValue) as? String {
            model.textColor = NSColor.km_init(hex: textColorKey)
        } else {
            let red: CGFloat = dict.object(forKey: KMWatermarkKey.red.rawValue) as? CGFloat ?? 0
            let green: CGFloat = dict.object(forKey: KMWatermarkKey.green.rawValue) as? CGFloat ?? 0
            let blue: CGFloat = dict.object(forKey: KMWatermarkKey.blue.rawValue) as? CGFloat ?? 0
            model.textColor = NSColor(red: red, green: green, blue: blue, alpha: 1.0)
        }
        model.isFront = (dict.object(forKey: KMWatermarkKey.isFront.rawValue) as? Bool) ?? false
        model.isTilePage = (dict.object(forKey: KMWatermarkKey.isTile.rawValue) as? Bool) ?? false
        model.horizontalSpacing = (dict.object(forKey: KMWatermarkKey.tileHorizontalSpace.rawValue) as? CGFloat) ?? 0
        model.verticalSpacing = (dict.object(forKey: KMWatermarkKey.tileVerticalSpace.rawValue) as? CGFloat) ?? 0
        model.tag = (dict.object(forKey: KMWatermarkKey.tag.rawValue) as? String) ?? ""
        model.watermarkName = (dict.object(forKey: KMWatermarkKey.watermarkName.rawValue) as? String) ?? ""
        
        return model
    }
     
    //MARK: - Getter
    func drawImageAtpageRect(rect: NSRect, data: KMPDFWatermarkData) -> NSImage? {
        var size = NSZeroSize
        let text: String = data.text ?? ""
        if data.watermarkType == .image {
            if let image = data.image() {
                size = image.size
                size.width *= data.scale
                size.height *= data.scale
            }
        } else if data.watermarkType == .text {
            var font = NSFont.systemFont(ofSize: 52)
            if data.isTilePage {
                font = NSFont.systemFont(ofSize: data.fontSize)
            }
            let style = NSMutableParagraphStyle()
            style.alignment = .center
            style.lineBreakMode = .byCharWrapping
            let attributes: [NSAttributedString.Key: Any] = [ .paragraphStyle: style, .font: font ]
            size = text.boundingRect(with: CGSize(width: CGFloat.greatestFiniteMagnitude, height: CGFloat.greatestFiniteMagnitude), options: [.usesLineFragmentOrigin, .usesFontLeading], attributes: attributes).size
        }
        
        let radian = data.rotation * (CGFloat.pi/180)
        let t = CGAffineTransform(rotationAngle: radian)
        var newRect = rect
        if !data.isTilePage {
            newRect = CGRect(x: 0, y: 0, width: size.width + 40, height: size.height + 40).applying(t)
        }
        let image = NSImage(size: newRect.size)
        image.lockFocus()
        NSGraphicsContext.current?.imageInterpolation = .high
        NSGraphicsContext.saveGraphicsState()
        NSColor.clear.set()
        rect.fill()
        NSGraphicsContext.restoreGraphicsState()
        guard let context = NSGraphicsContext.current?.cgContext else { return nil }
        let imageSize = newRect.size
        NSGraphicsContext.current = NSGraphicsContext(cgContext: context, flipped: false)
        NSGraphicsContext.saveGraphicsState()
        
        if data.watermarkType == .image {
            guard let image = data.image() else { return nil }
            var size = image.size
            size.width *= data.scale
            size.height *= data.scale
            let width = sqrt(image.size.height * image.size.height + image.size.width * image.size.width)
            let newRect = CGRect(x: -(width - image.size.width)/2, y: -(width - image.size.height)/2, width: width, height: width)
            let new_w = newRect.size.width
            let new_h = newRect.size.height
            let radian = data.rotation * (CGFloat.pi / 180)
            let t = CGAffineTransform(rotationAngle: radian)
            if data.isTilePage {
                context.translateBy(x: image.size.width/2, y: image.size.height/2)
                context.concatenate(t)
                context.translateBy(x: -(image.size.width/2), y: -(image.size.height/2))
                
                let verticalWidth = size.width + data.horizontalSpacing * data.scale
                let horizontalHeight = size.height + data.verticalSpacing * data.scale
                let line: Int = Int((new_h - data.verticalSpacing * data.scale)/horizontalHeight + 1)
                let row: Int = Int((new_w - data.horizontalSpacing * data.scale) / verticalWidth + 1)
                let point = CGPoint(x: image.size.width/2 - size.width/2 + data.tx*data.scale, y:image.size.height/2 - size.height/2 + data.ty * data.scale)
                for i in 0..<line/2+1 {
                    for j in 0..<row {
                        let area = CGRect(x: point.x + CGFloat(j) * verticalWidth, y: point.y + CGFloat(i) * horizontalHeight, width: size.width, height: size.height)
                        image.draw(in: area, from: NSZeroRect, operation: .sourceOver, fraction: data.opacity)
                    }
                }
                for i in 1..<line/2+1 {
                    for j in 0..<row {
                        let area = CGRect(x: point.x + CGFloat(j) * verticalWidth, y: point.y - CGFloat(i) * horizontalHeight, width: size.width, height: size.height)
                        image.draw(in: area, from: NSZeroRect, operation: .sourceOver, fraction: data.opacity)
                    }
                }
                for i in 0..<line/2+1 {
                    for j in 1..<row {
                        let area = CGRect(x: point.x - CGFloat(j) * verticalWidth, y: point.y + CGFloat(i) * horizontalHeight, width: size.width, height: size.height)
                        image.draw(in: area, from: NSZeroRect, operation: .sourceOver, fraction: data.opacity)
                    }
                }
                for i in 1..<(line/2 + 1) {
                    for j in 1..<row {
                        let area = CGRect(x: point.x - CGFloat(j)*verticalWidth, y: point.y - CGFloat(i)*horizontalHeight, width: size.width, height: size.height)
                        image.draw(in: area, from: NSZeroRect, operation: .sourceOver, fraction: data.opacity)
                    }
                }
            } else {
                var size = image.size
                size.width *= data.scale
                size.height *= data.scale
                let radian = data.rotation * (CGFloat.pi / 180)
                let t = CGAffineTransform(rotationAngle: radian)
                var imageRect = CGRect(origin: .zero, size: size).applying(t)
                if data.verticalPosition == .bottom {
                    imageRect.origin.y = imageSize.height - imageRect.size.height
                } else if data.verticalPosition == .center {
                    imageRect.origin.y = (imageSize.height - imageRect.size.height) / 2.0
                } else {
                    imageRect.origin.y = 0
                }
                if data.horizontalPosition == .left {
                    imageRect.origin.x = 0
                } else if data.horizontalPosition == .center {
                    imageRect.origin.x = (imageSize.width - imageRect.size.width) / 2.0
                } else {
                    imageRect.origin.x = imageSize.width - imageRect.size.width
                }
                let contextCenter = CGPoint(x: imageRect.midX, y: imageRect.midY)
                context.translateBy(x: contextCenter.x, y: contextCenter.y)
                context.rotate(by: radian)
                context.translateBy(x: -contextCenter.x, y: -contextCenter.y)
                image.draw(in: CGRect(x: imageRect.origin.x+(imageRect.size.width-size.width)/2.0, y: imageRect.origin.y+(imageRect.size.height-size.height)/2.0, width: size.width, height: size.height), from: NSZeroRect, operation: .sourceOver, fraction: data.opacity)
            }
        }else if text.count > 0 {
            var font = NSFont.systemFont(ofSize: 52)
            if data.isTilePage {
                font = NSFont.systemFont(ofSize: data.fontSize)
            }
            var color = data.textColor
            var red: CGFloat = 0, green: CGFloat = 0, blue: CGFloat = 0
            color.usingColorSpaceName(.calibratedRGB)?.getRed(&red, green: &green, blue: &blue, alpha: nil)
            color = NSColor.init(calibratedRed: red, green: green, blue: blue, alpha: data.opacity)
            
            size = .zero
            
            let alpha = data.opacity
            let tileHorizontalSpace = data.horizontalSpacing
            let tileVerticalSpace = data.verticalSpacing
            let horizontalSpace = data.tx
            let verticalSpace = data.ty
            let style = NSMutableParagraphStyle()
            style.alignment = .center
            style.lineBreakMode = .byCharWrapping
            let attributes: [NSAttributedString.Key: Any] = [ .paragraphStyle: style, .foregroundColor: NSColor(calibratedRed: red, green: green, blue: blue, alpha: alpha), .font: font ]
            size = text.boundingRect(with: CGSize(width: CGFloat.greatestFiniteMagnitude, height: CGFloat.greatestFiniteMagnitude), options: [.usesLineFragmentOrigin, .usesFontLeading], attributes: attributes).size
            let textRect = CGRect(x: 0, y: 0, width: size.width, height: size.height)
            if data.isTilePage {
                let width = sqrt(image.size.height * image.size.height + image.size.width * image.size.width)
                let newRect = CGRect(x: -(width - image.size.width) / 2, y: -(width - image.size.height) / 2, width: width, height: width)
                let new_w = newRect.size.width
                let new_h = newRect.size.height
                context.translateBy(x: image.size.width / 2, y: image.size.height / 2)
                context.concatenate(CGAffineTransform(rotationAngle: radian))
                context.translateBy(x: -(image.size.width / 2), y: -(image.size.height / 2))
                let verticalWidth = size.width + tileHorizontalSpace / 3.0
                let horizontalHeight = size.height + tileVerticalSpace / 3.0
                let line: Int = Int((new_h - tileHorizontalSpace / 3.0) / horizontalHeight + 1)
                let row: Int = Int((new_w - tileVerticalSpace / 3.0) / verticalWidth + 1)
                let point = CGPoint(x: image.size.width / 2 - size.width / 2 + horizontalSpace / 3.0, y: image.size.height / 2 - size.height / 2 + verticalSpace / 3.0)
                for i in 0..<line {
                    for j in 0..<row {
                        let drawRect = CGRect(x: point.x + CGFloat(j) * verticalWidth, y: point.y + CGFloat(i) * horizontalHeight, width: size.width, height: size.height)
                        text.draw(in: drawRect, withAttributes: attributes)
                    }
                }
                for i in 1..<line {
                    for j in 0..<row {
                        let drawRect = CGRect(x: point.x + CGFloat(j) * verticalWidth, y: point.y - CGFloat(i) * horizontalHeight, width: size.width, height: size.height)
                        text.draw(in: drawRect, withAttributes: attributes)
                    }
                }
                for i in 0..<line {
                    for j in 1..<row {
                        let drawRect = CGRect(x: point.x - CGFloat(j) * verticalWidth, y: point.y + CGFloat(i) * horizontalHeight, width: size.width, height: size.height)
                        text.draw(in: drawRect, withAttributes: attributes)
                    }
                }
                for i in 1..<line {
                    for j in 1..<row {
                        let drawRect = CGRect(x: point.x - CGFloat(j) * verticalWidth, y: point.y - CGFloat(i) * horizontalHeight, width: size.width, height: size.height)
                        text.draw(in: drawRect, withAttributes: attributes)
                    }
                }
            } else {
                var textRect = textRect
                if data.verticalPosition == .bottom {
                    textRect.origin.y = imageSize.height - textRect.size.height
                } else if data.verticalPosition == .center {
                    textRect.origin.y = (imageSize.height - textRect.size.height) / 2.0
                } else {
                    textRect.origin.y = 0
                }
                if data.horizontalPosition == .left {
                    textRect.origin.x = 0
                } else if data.horizontalPosition == .center {
                    textRect.origin.x = (imageSize.width - textRect.size.width) / 2.0
                } else {
                    textRect.origin.x = imageSize.width - textRect.size.width
                }
                let contextCenter = CGPoint(x: textRect.midX, y: textRect.midY)
                context.translateBy(x: contextCenter.x, y: contextCenter.y)
                context.rotate(by: radian)
                context.translateBy(x: -contextCenter.x, y: -contextCenter.y)
                (data.text ?? "").draw(in: CGRect(x: textRect.origin.x + (textRect.size.width - size.width) / 2.0, y: textRect.origin.y + (textRect.size.height - size.height) / 2.0, width: size.width, height: size.height), withAttributes: attributes)
            }
        }
        NSGraphicsContext.restoreGraphicsState()
        NSGraphicsContext.current?.imageInterpolation = .default
        image.unlockFocus()
        return image
    }
    
    class func getFontSize() -> [String] {
        return ["6","8","10","12","14",
                "16","18","20","22","24",
                "26","28","30","32","34",
                "36","40","48","64","80",
                "96","112"]
    }
    
    func fetchAvailableName() -> String {
        var availableIndex: Int = 0
        let watermark = "Watermark"
        for model in self.watermarks {
            let watermarkID = model.tag
            if (watermarkID.hasPrefix(watermark)) {
                let indexString: String = (watermarkID.components(separatedBy: watermark).last ?? "0")
                let index: Int = Int(indexString) ?? 0
                if (index >= availableIndex) {
                    availableIndex = index + 1
                }
            }
        }
        
        return "\(watermark)\(availableIndex)"
    }
    
    //MARK: - Compare
    class func compareIsChangedModel(_ model: KMPDFWatermarkData, withDict dict: NSDictionary) -> Bool {
        if let value = dict["fontName"] {
            if model.fontName != (value as! String) {
                return true
            }
        }
        
       if let value = dict.object(forKey: KMWatermarkKey.text.rawValue) {
           if model.text != (value as! String) {
               return true
           }
       }
         
        if let value = dict.object(forKey: KMWatermarkKey.textFontName.rawValue) {
            if model.fontName != (value as! String) {
                return true
            }
        }
        
        if let value = dict.object(forKey: KMWatermarkKey.textfontStyle.rawValue) {
            if model.fontStyle != (value as! String) {
                return true
            }
        }
        
        if let value = dict.object(forKey: KMWatermarkKey.textFontSize.rawValue) {
            if model.fontSize != (value as! CGFloat) {
                return true
            }
        }
        
        if let value = dict.object(forKey: KMWatermarkKey.imagePath.rawValue) {
            if model.imagePath != (value as! String) {
                return true
            }
        }
  
        
        if let value = dict.object(forKey: KMWatermarkKey.isScale.rawValue) {
            if model.isScale != (value as! Bool) {
                return true
            }
        }
        if let value = dict.object(forKey: KMWatermarkKey.scale.rawValue) {
            if model.scale != (value as! CGFloat) {
                return true
            }
        }
        
        if let value = dict.object(forKey: KMWatermarkKey.rotate.rawValue) {
            if model.rotation != (value as! CGFloat) {
                return true
            }
        }
        
        if let value = dict.object(forKey: KMWatermarkKey.opacity.rawValue) {
            if model.opacity != (value as! CGFloat) {
                return true
            }
        }
        
        if let value = dict.object(forKey: KMWatermarkKey.verticalMode.rawValue) {
            if model.verticalPosition.rawValue != (value as! Int) {
                return true
            }
        }
        if let value = dict.object(forKey: KMWatermarkKey.verticalSpace.rawValue) {
            if model.ty != (value as! CGFloat) {
                return true
            }
        }
        if let value = dict.object(forKey: KMWatermarkKey.horizontalMode.rawValue) {
            if model.horizontalPosition.rawValue != (value as! Int) {
                return true
            }
        }
        
        if let value = dict.object(forKey: KMWatermarkKey.horizontalSpace.rawValue) {
            if model.tx != (value as! CGFloat) {
                return true
            }
        }
        
        if let value = dict.object(forKey: KMWatermarkKey.textColor.rawValue) {
            if model.textColor.colorToHexString() != (value as! String) {
                return true
            }
        }
        
        if let value = dict.object(forKey: KMWatermarkKey.isFront.rawValue) {
            if model.isFront != (value as! Bool) {
                return true
            }
        }
        if let value = dict.object(forKey: KMWatermarkKey.isTile.rawValue) {
            if model.isTilePage != (value as! Bool) {
                return true
            }
        }
        if let value = dict.object(forKey: KMWatermarkKey.tileHorizontalSpace.rawValue) {
            if model.horizontalSpacing != (value as! CGFloat) {
                return true
            }
        }
        if let value = dict.object(forKey: KMWatermarkKey.tileVerticalSpace.rawValue) {
            if model.verticalSpacing != (value as! CGFloat) {
                return true
            }
        }
        
        return false
    }
}