//
//  KMEditPDFTextPropertyViewController.swift
//  PDF Master
//
//  Created by lxy on 2022/12/27.
//

import Cocoa

let CEditPDFTextDefaultFontName = "CEditPDFTextDefaultFontName"
let CEditPDFTextDefaultFontStyle = "CEditPDFTextDefaultFontStyle"
let CEditPDFTextDefaultFontSize = "CEditPDFTextDefaultFontSize"
let CEditPDFTextDefaultFontColor = "CEditPDFTextDefaultFontColor"
let CEditPDFTextDefaultFontAlign = "CEditPDFTextDefaultFontAlign"

enum CPDFActiveAreasAlignType : Int {
    case Left
    case Vertical
    case Right
    case Top
    case Horizontally
    case Bottom
    case DisHorizontally
    case DisVertical

}

class KMEditPDFTextPropertyViewController: NSViewController {

    @IBOutlet weak var headerBox: NSBox!
    @IBOutlet weak var propertyTitle: NSTextField!
    @IBOutlet weak var preViewBox: NSBox!
    @IBOutlet weak var preViewHeight: NSLayoutConstraint!
    @IBOutlet weak var preImageView: NSImageView!
    @IBOutlet weak var useButton: NSButton!
    @IBOutlet weak var styleBox: NSComboBox!
    @IBOutlet weak var fontTitleLabel: NSTextField!
    @IBOutlet weak var fontSetBox: NSBox!
    @IBOutlet weak var fontStyleComboBox: NSComboBox!
    @IBOutlet weak var alignRightButton: NSButton!
    @IBOutlet weak var alignCenterButton: NSButton!
    @IBOutlet weak var alignLeftButton: NSButton!
    @IBOutlet weak var currentFontColor: NSImageView!
    @IBOutlet weak var fontSizeComboBox: NSComboBox!
    @IBOutlet weak var fontStyleTComboBox: NSComboBox!
    @IBOutlet weak var fontTopConstraint: NSLayoutConstraint!
    
    @IBOutlet weak var alignTitleLabel: NSTextField!
    @IBOutlet weak var areasLeftButton: NSButton!
    @IBOutlet weak var areasVerticalCenterButton: NSButton!
    @IBOutlet weak var areasHorzontalButton: NSButton!
    @IBOutlet weak var areasVerticalButton: NSButton!
    @IBOutlet weak var areasBotoomButton: NSButton!
    @IBOutlet weak var areasHorizontalCenterButton: NSButton!
    @IBOutlet weak var areasTopButton: NSButton!
    @IBOutlet weak var areasRightButton: NSButton!
    var textsAreas : [CPDFEditTextArea] = []
    
    var listView : CPDFListView!
    var fonts = NSMutableArray()
    var currentColor : NSColor = NSColor.black
    var alignment : NSTextAlignment = .left
    override func viewDidLoad() {
        super.viewDidLoad()
        self.currentFontColor.wantsLayer = true
        self.currentFontColor.layer?.cornerRadius = 9
        self.currentFontColor.layer?.masksToBounds = true
        self.currentFontColor.image = self.swatchWithColor(color: NSColor.black, size: NSSize(width: 18, height: 18))
        self.preImageView.wantsLayer = true
        self.preImageView.layer?.backgroundColor = NSColor.white.cgColor
        self.preViewBox.isHidden = true
        self.preViewHeight.constant = 0
        self.propertyTitle.stringValue = NSLocalizedString("Text", comment: "")
        self.fontTitleLabel.stringValue = NSLocalizedString("Font", comment: "")
        self.alignTitleLabel.stringValue = NSLocalizedString("Align", comment: "")
        self.fontReload()
        self.setDefaultProperty()
        self.formAearsAlignIcon()
        self.imageWithTextSet()
    }
    
    func refreshSelectAreaProperty() {
        if self.listView.editingAreas()?.count == 1 {
            let areas = self.listView.editingAreas().first
            if areas is CPDFEditTextArea  {
                self.fontSizeComboBox.stringValue = "\(self.listView.editingSelectionFontSize())"
                let font = self.listView.editingSelectionFontName()
                let result : [String] = font?.components(separatedBy: " - ") ?? []
                var fontName = ""
                var fontStyle = ""
                if result.count == 1 {
                    fontName = result[0]
                }
                if result.count == 2 {
                    fontStyle = result[1]
                }
                self.fontStyleComboBox.stringValue = fontName
                self.fontStyleTComboBox.stringValue = fontStyle
                self.currentColor = self.listView.editingSelectionFontColor() ?? NSColor.black
                NSColorPanel.shared.color = self.currentColor
                self.currentFontColor.image = self.swatchWithColor(color: self.currentColor, size: NSSize(width: 18, height: 18))
                self.alignment = self.listView.editingSelectionAlignment()
                self.updateAlignIcon()
                self.imageWithTextSet()
            }
        }
       
    }
    
    func reloadData() {
        self.formAearsAlignIcon()
        textsAreas = []
        if self.listView.editingAreas()?.count ?? 0 < 1 {
            return
        }
        let areas = self.listView.editingAreas()
        for i in 0 ... areas!.count-1 {
            if areas![i] is CPDFEditTextArea {
                textsAreas.append(areas![i] as! CPDFEditTextArea)
            }
        }
        if textsAreas.count == 1 {
            self.headerBox.isHidden = false
            self.fontTitleLabel.isHidden = false
            self.fontTopConstraint.constant = 5;
        } else if textsAreas.count > 1 {
            self.headerBox.isHidden = true
            self.fontTitleLabel.isHidden = true
            self.fontTopConstraint.constant = -135;
        }
        
        self.refreshSelectAreaProperty()
    }
    
    func setDefaultProperty() {
        let fontName : String = UserDefaults.standard.object(forKey: CEditPDFTextDefaultFontName) as? String ?? "Helvetica"
        let fontStyle : String = UserDefaults.standard.object(forKey: CEditPDFTextDefaultFontStyle) as? String ?? "Bold"
        let fontSize : String = UserDefaults.standard.object(forKey: CEditPDFTextDefaultFontSize) as? String ?? "12"
        let fontColor : NSColor = UserDefaults.standard.pdfListViewColor(forKey: CEditPDFTextDefaultFontColor) ?? NSColor.black
        let fontAlign : String = UserDefaults.standard.object(forKey: CEditPDFTextDefaultFontAlign) as? String ?? "2"
        self.fontStyleComboBox.stringValue = fontName
        self.fontStyleTComboBox.stringValue = fontStyle
        self.fontSizeComboBox.stringValue = fontSize
        self.alignment = NSTextAlignment.init(rawValue: Int(fontAlign)!)!
        self.currentColor = fontColor
        NSColorPanel.shared.color = self.currentColor
        self.currentFontColor.image = self.swatchWithColor(color: self.currentColor, size: NSSize(width: 18, height: 18))
        self.updateAlignIcon()
    }
    
    func fontReload() {
        self.fonts = NSFont.supportFonts()
        var selectedIndex = 0
        for dic in fonts {
            let fontName = (dic as! NSDictionary).allKeys.first
            let font = NSFont(name: fontName as! String, size: 12.0)
            let attrited : [NSAttributedString.Key : Any] = [NSAttributedString.Key.font:font!]
            let string : NSAttributedString = NSAttributedString(string: fontName as! String, attributes: attrited)
            self.fontStyleComboBox.addItem(withObjectValue:string)
        }
        self.fontStyleComboBox.selectItem(at: selectedIndex)
        self.fontStyleComboBox.font = NSFont.systemFont(ofSize: 12)
        self.fontStyleTComboBox.font = NSFont.systemFont(ofSize: 12)
        self.fontSizeComboBox.removeAllItems()
        let fontsize = ["6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "24", "36", "48", "72", "96", "144", "288"]
        for str in fontsize {
            self.fontSizeComboBox.addItem(withObjectValue: str)
        }
        selectedIndex = 6
        self.fontSizeComboBox.selectItem(at: selectedIndex)
        self.setFontStyleWithFontName(fontName: self.fontStyleComboBox.stringValue, currentStyle: "")
    }
    
    func setFontStyleWithFontName(fontName:String, currentStyle style:String) -> NSInteger {
        let selctIndex = 0
        for i in 0 ... self.fonts.count-1 {
            let dic : NSDictionary = self.fonts.object(at: i) as! NSDictionary
            let familyString = dic.allKeys.first as! String
            if fontName == familyString {
                let styles : NSArray = dic.object(forKey: fontName) as! NSArray
                self.fontStyleTComboBox.removeAllItems()
                for j in 0 ... styles.count-1 {
                    let style = styles.object(at: j) as! String
                    let attributeFontDescriptor = NSFontDescriptor.init(fontAttributes: [NSFontDescriptor.AttributeName.family : fontName,NSFontDescriptor.AttributeName.face : style])
                    let font = NSFont.init(descriptor: attributeFontDescriptor, size: 12)
                    let attrited : [NSAttributedString.Key : Any] = [NSAttributedString.Key.font:font!]
                    let string : NSAttributedString = NSAttributedString(string: style, attributes: attrited)
                    self.fontStyleTComboBox.addItem(withObjectValue:string)
                }
                break
            }
        }
        self.fontStyleTComboBox.selectItem(at: 0)
        return selctIndex
    }
    
    //MARK: Button Action
    
    @IBAction func fontColorAction(_ sender: Any) {
        let color = self.listView.editingSelectionFontColor()
        let panel = NSColorPanel.shared
        panel.setTarget(self)
        panel.setAction(#selector(fontColorChangeAction))
        panel.orderFront(nil)
        panel.showsAlpha = false
        panel.color = color ?? NSColor.black
    }
    
    @IBAction func fontNameAction(_ sender: Any) {
        self.setFontStyleWithFontName(fontName: self.fontStyleComboBox.stringValue, currentStyle: "")
        if self.listView.editingAreas()?.count ?? 0 > 0 {
            self.listView.setEditingSelectionFontName("\(self.fontStyleComboBox.stringValue)-\(self.fontStyleTComboBox.stringValue)")
        } else {
            UserDefaults.standard.set(self.fontStyleComboBox.stringValue, forKey: CEditPDFTextDefaultFontName)
            UserDefaults.standard.set(self.fontStyleTComboBox.stringValue, forKey: CEditPDFTextDefaultFontStyle)
        }
        self.imageWithTextSet()
    }
    
    @IBAction func fontNameStyleAction(_ sender: Any) {
        if self.listView.editingAreas()?.count ?? 0 > 0 {
            self.listView.setEditingSelectionFontName("\(self.fontStyleComboBox.stringValue)-\(self.fontStyleTComboBox.stringValue)")
        } else {
            UserDefaults.standard.set(self.fontStyleComboBox.stringValue, forKey: CEditPDFTextDefaultFontName)
            UserDefaults.standard.set(self.fontStyleTComboBox.stringValue, forKey: CEditPDFTextDefaultFontStyle)
        }
        self.imageWithTextSet()
    }
    
    @IBAction func fontSizeAction(_ sender: Any) {
        let size : String = self.fontSizeComboBox.objectValueOfSelectedItem as? String ?? "12"
        if self.listView.editingAreas()?.count ?? 0 > 0 {
            self.listView.setEditingSelectionFontSize(CGFloat(Int(size)!))
        } else {
            UserDefaults.standard.set(self.fontSizeComboBox.stringValue, forKey: CEditPDFTextDefaultFontSize)
        }
        self.imageWithTextSet()
    }
    
    @objc func fontColorChangeAction() {
        self.currentColor = NSColorPanel.shared.color
        self.currentFontColor.image = self.swatchWithColor(color: NSColorPanel.shared.color, size: NSSize(width: 18, height: 18))
        if self.listView.editingAreas()?.count ?? 0 > 0 {
            self.listView.setEditingSelectionFontColor(NSColorPanel.shared.color)
        } else {
            UserDefaults.standard.setPDFListViewColor(self.currentColor, forKey: CEditPDFTextDefaultFontColor)
        }
        self.imageWithTextSet()
    }
    
    @IBAction func aglinSegmentedAction(_ sender: NSButton) {
        if sender.tag == 0 {
            self.alignment = .left
        } else if sender.tag == 1 {
            self.alignment = .center
        } else {
            self.alignment = .right
        }
        self.updateAlignIcon()
        if self.listView.editingAreas()?.count ?? 0 > 0 {
            self.listView.setCurrentSelectionAlignment(self.alignment)
        } else {
            UserDefaults.standard.set("\(self.alignment.rawValue)", forKey: CEditPDFTextDefaultFontAlign)
        }
        self.imageWithTextSet()
    }
    
    
    @IBAction func areasAlignStyleAction(_ sender: NSButton) {
        self.formAearsAlignMangent(stype: CPDFActiveAreasAlignType.init(rawValue: sender.tag) ?? .Left)
    }
    
    override func mouseDown(with event: NSEvent) {
        
    }
    
    //MARK: ToolAction
    
    private func swatchWithColor(color:NSColor,size:NSSize) -> NSImage {
        let image = NSImage(size: size)
        image.lockFocus()
        color.drawSwatch(in: NSRect(x: 0, y: 0, width: size.width, height: size.height))
        image.unlockFocus()
        return image
    }
    
    private func imageWithTextSet() {
        var string = NSLocalizedString("example", comment: "")
        let style = NSMutableParagraphStyle()
        style.alignment = self.alignment
        if self.listView.editingAreas()?.count == 1 {
            let areas = self.listView.editingAreas().first
            if areas is CPDFEditTextArea {
                string = self.listView.editingSelectionString() ?? NSLocalizedString("example", comment: "")
                style.alignment = self.listView.editingSelectionAlignment()
            }
        }
        var attributeFontDescriptor = NSFontDescriptor.init(fontAttributes: [NSFontDescriptor.AttributeName.family : self.fontStyleComboBox.stringValue,NSFontDescriptor.AttributeName.face : self.fontStyleTComboBox.stringValue])
        var font = NSFont.init(descriptor: attributeFontDescriptor, size: CGFloat(Float(self.fontSizeComboBox.stringValue)!))
        var red : CGFloat = 0.0
        var green : CGFloat = 0.0
        var blue : CGFloat = 0.0
        var alpha : CGFloat = 0.0
        var color : NSColor = NSColor.white
        if self.currentColor != nil {
            self.currentColor.usingColorSpaceName(NSColorSpaceName.calibratedRGB)?.getRed(&red, green: &green, blue: &blue, alpha: &alpha)
            color = NSColor(red: red, green: green, blue: blue, alpha: alpha)
        } else {
            color = NSColor(white: 1.0, alpha: 1.0)
        }
        
        if font == nil {
            self.fontStyleComboBox.stringValue = ""
            self.fontStyleTComboBox.stringValue = ""
            attributeFontDescriptor = NSFontDescriptor.init(fontAttributes: [NSFontDescriptor.AttributeName.family : self.fontStyleComboBox.menu?.item(at: 0)?.title ?? "Helvetica",NSFontDescriptor.AttributeName.face : self.fontStyleTComboBox.menu?.item(at: 0)?.title ?? "Bold"])
            font = NSFont.init(descriptor: attributeFontDescriptor, size: CGFloat(Float(self.fontSizeComboBox.stringValue)!))
        }
        
        let attributes = [NSAttributedString.Key.font:font,NSAttributedString.Key.foregroundColor:color,NSAttributedString.Key.paragraphStyle:style]
        
        let size = string.size(withAttributes:attributes as [NSAttributedString.Key : Any])
        let image = NSImage(size: NSSize(width: self.preImageView.frame.size.width, height: size.height))
        image.lockFocus()
        NSGraphicsContext.current?.imageInterpolation = .high
        NSString(string: string).draw(in: NSRect(x: 0, y: 0, width: self.preImageView.frame.size.width, height: image.size.height), withAttributes: attributes)
        NSGraphicsContext.current?.imageInterpolation = .default
        image.unlockFocus()
        
        self.preImageView.image = image
    }
    
    
    func updateAlignIcon() {
        if(self.alignment == .left) {
            self.alignLeftButton.image = NSImage(named: "KMImageNameEditPDFAlignLeftSelect")
            self.alignCenterButton.image = NSImage(named: "KMImageNameEditPDFAlignCenter")
            self.alignRightButton.image = NSImage(named: "KMImageNameEditPDFAlignRight")
        }else if(self.alignment == .center) {
            self.alignCenterButton.image = NSImage(named: "KMImageNameEditPDFAlignCenterSelect")
            self.alignRightButton.image = NSImage(named: "KMImageNameEditPDFAlignRight")
            self.alignLeftButton.image = NSImage(named: "KMImageNameEditPDFAlignLeft")
        } else if(self.alignment == .right) {
            self.alignCenterButton.image = NSImage(named: "KMImageNameEditPDFAlignCenter")
            self.alignLeftButton.image = NSImage(named: "KMImageNameEditPDFAlignLeft")
            self.alignRightButton.image = NSImage(named: "KMImageNameEditPDFAlignRightSelect")
        }
    }
    
    func formAearsAlignIcon() {
        let norIcons : [String] = ["KMImageNameEditPDFImage20","KMImageNameEditPDFImage21","KMImageNameEditPDFImage45","KMImageNameEditPDFImage46",
        "KMImageNameEditPDFImage47","KMImageNameEditPDFImage48","KMImageNameEditPDFImage49","KMImageNameEditPDFImage50"]
        let selectIcons : [String] = ["KMImageNameEditPDFImage20_1","KMImageNameEditPDFImage21_1","KMImageNameEditPDFImage45_1","KMImageNameEditPDFImage46_1",
                           "KMImageNameEditPDFImage47_1","KMImageNameEditPDFImage48_1","KMImageNameEditPDFImage49_1","KMImageNameEditPDFImage50_1"]
        let areasButtons : [NSButton] = [self.areasVerticalButton,self.areasHorzontalButton,self.areasLeftButton,self.areasVerticalCenterButton,
                                         self.areasRightButton,self.areasTopButton,self.areasHorizontalCenterButton,self.areasBotoomButton]
        if self.listView.editingAreas()?.count ?? 0 < 2 {
            for i in 0 ... areasButtons.count-1 {
                areasButtons[i].image = NSImage(named: norIcons[i])
            }
        } else if self.listView.editingAreas()?.count ?? 0 == 2 {
            for i in 0 ... areasButtons.count-1 {
                if i == 0 || i == 1 {
                    areasButtons[i].image = NSImage(named: norIcons[i])
                } else {
                    areasButtons[i].image = NSImage(named: selectIcons[i])
                }
            }
        } else if self.listView.editingAreas()?.count ?? 0 > 2 {
            for i in 0 ... areasButtons.count-1 {
                areasButtons[i].image = NSImage(named: selectIcons[i])
            }
        }
    }
    
    func formAearsAlignMangent(stype:CPDFActiveAreasAlignType) {
        if self.listView.editingAreas().count < 2 {
           return
        }
        var zeroRect = NSRect.null
        var highestRect = NSZeroRect
        var widthestRect = NSZeroRect
        
        let fristArea : CPDFEditArea = self.listView.editingAreas().first as! CPDFEditArea
        var leftestRect = fristArea.bounds
        var rightestRect = fristArea.bounds
        var topestRect = fristArea.bounds
        var bottomestRect = fristArea.bounds
        
        var leftestArea : CPDFEditArea = fristArea
        var rightestArea : CPDFEditArea = fristArea
        var topestArea : CPDFEditArea = fristArea
        var bottomestArea : CPDFEditArea = fristArea
        
        var totalWidth = 0.0
        var totalHeight = 0.0
        
        for i in 0 ... self.listView.editingAreas().count-1 {
            let area : CPDFEditArea = self.listView.editingAreas()[i] as! CPDFEditArea
            zeroRect = zeroRect.union(area.bounds)
            totalWidth = totalWidth + area.bounds.width
            totalHeight = totalHeight + area.bounds.height
            
            if area.bounds.height > highestRect.height {
                highestRect = area.bounds
            }
            
            if area.bounds.width > widthestRect.width {
                widthestRect = area.bounds
            }
            
            if leftestRect.minX > area.bounds.minX {
                leftestRect = area.bounds
                leftestArea = area
            }
            
            if area.bounds.maxX > rightestRect.maxX {
                rightestRect = area.bounds
                rightestArea = area
            }
            
            if area.bounds.maxY > topestRect.maxY {
                topestRect = area.bounds
                topestArea = area
            }
            
            if bottomestRect.minY > area.bounds.minY {
                bottomestRect = area.bounds
                bottomestArea = area
            }
        }
        
        if stype == .Left {
            var newBoundsArray : [String] = []
            for i in 0 ... self.listView.editingAreas().count-1 {
                let areas = self.listView.editingAreas()[i] as! CPDFEditArea
                var bounds = areas.bounds
                bounds.origin.x = zeroRect.origin.x
                newBoundsArray.append(NSStringFromRect(bounds))
            }
            self.changeAreasAlign(areas: self.listView.editingAreas(), newBounds: newBoundsArray)
        } else if stype == .Right {
            var newBounds : [String] = []
            for i in 0 ... self.listView.editingAreas().count-1 {
                let areas = self.listView.editingAreas()[i] as! CPDFEditArea
                var bounds = areas.bounds
                bounds.origin.x = zeroRect.maxX - bounds.size.width
                newBounds.append(NSStringFromRect(bounds))
            }
            self.changeAreasAlign(areas: self.listView.editingAreas(), newBounds: newBounds)
        } else if stype == .Top {
            var newBounds : [String] = []
            for i in 0 ... self.listView.editingAreas().count-1 {
                let areas = self.listView.editingAreas()[i] as! CPDFEditArea
                var bounds = areas.bounds
                bounds.origin.y = zeroRect.maxY - bounds.size.height
                newBounds.append(NSStringFromRect(bounds))
            }
            self.changeAreasAlign(areas: self.listView.editingAreas(), newBounds: newBounds)
        } else if stype == .Bottom {
            var newBounds : [String] = []
            for i in 0 ... self.listView.editingAreas().count-1 {
                let areas = self.listView.editingAreas()[i] as! CPDFEditArea
                var bounds = areas.bounds
                bounds.origin.y = zeroRect.minY
                newBounds.append(NSStringFromRect(bounds))
            }
            self.changeAreasAlign(areas: self.listView.editingAreas(), newBounds: newBounds)
        } else if stype == .Horizontally {
            var newBounds : [String] = []
            for i in 0 ... self.listView.editingAreas().count-1 {
                let areas = self.listView.editingAreas()[i] as! CPDFEditArea
                var bounds = areas.bounds
                bounds.origin.y = highestRect.midY - bounds.height/2
                newBounds.append(NSStringFromRect(bounds))
            }
            self.changeAreasAlign(areas: self.listView.editingAreas(), newBounds: newBounds)
        } else if stype == .Vertical {
            var newBounds : [String] = []
            for i in 0 ... self.listView.editingAreas().count-1 {
                let areas = self.listView.editingAreas()[i] as! CPDFEditArea
                var bounds = areas.bounds
                bounds.origin.x = widthestRect.midX - bounds.width/2
                newBounds.append(NSStringFromRect(bounds))
            }
            self.changeAreasAlign(areas: self.listView.editingAreas(), newBounds: newBounds)
        } else if stype == .DisHorizontally {
            let middleGap = zeroRect.width - leftestRect.width - rightestRect.width
            let otherAreasTotalWidth = totalWidth - leftestRect.width - rightestRect.width
            
            let gap = (middleGap - otherAreasTotalWidth)/CGFloat(self.listView.editingAreas().count - 1)
            var areasCopyArray : [CPDFEditArea] = self.listView.editingAreas() as! [CPDFEditArea]
            areasCopyArray.sorted(by: { obj1, obj2 in
                let area1 = obj1
                let area2 = obj2
                if area1.bounds.origin.x < area2.bounds.origin.x {
                    return true
                } else {
                    return false
                }
            })

            if let index = areasCopyArray.firstIndex(of: leftestArea) {
                areasCopyArray.remove(at: index)
            }
            
            if let index = areasCopyArray.firstIndex(of: rightestArea) {
                areasCopyArray.remove(at: index)
            }
            
            var newBounds : [String] = []
            
            var leftStartX = leftestRect.maxX + gap
            for i in 0 ... areasCopyArray.count-1 {
                let areas = areasCopyArray[i]
                var bounds = areas.bounds
                bounds.origin.x = leftStartX
                newBounds.append(NSStringFromRect(bounds))
                leftStartX = leftStartX + bounds.width + gap
            }
            self.changeAreasAlign(areas: areasCopyArray, newBounds: newBounds)
        } else if stype == .DisVertical {
            let middleGap = zeroRect.height - topestRect.height - bottomestRect.height
            let otherAreasTotalHeight = totalHeight - topestRect.height - bottomestRect.height
            
            let gap = (middleGap - otherAreasTotalHeight)/CGFloat(self.listView.editingAreas().count - 1)
            var areasCopyArray : [CPDFEditArea] = self.listView.editingAreas() as! [CPDFEditArea]
            areasCopyArray.sorted(by: { obj1, obj2 in
                let area1 = obj1
                let area2 = obj2
                if area1.bounds.origin.x < area2.bounds.origin.x {
                    return true
                } else {
                    return false
                }
            })
            if let index = areasCopyArray.firstIndex(of: topestArea) {
                areasCopyArray.remove(at: index)
            }
            
            if let index = areasCopyArray.firstIndex(of: bottomestArea) {
                areasCopyArray.remove(at: index)
            }
            
            var newBounds : [String] = []
            
            var bottomStartY = bottomestRect.maxY + gap
            for i in 0 ... areasCopyArray.count-1 {
                let areas = areasCopyArray[i]
                var bounds = areas.bounds
                bounds.origin.y = bottomStartY
                newBounds.append(NSStringFromRect(bounds))
                bottomStartY = bottomStartY + bounds.height + gap
            }
            self.changeAreasAlign(areas: areasCopyArray, newBounds: newBounds)
        }
    }
    
    private func changeAreasAlign(areas:[Any],newBounds:[String]) {
        var oldBounds : [String] = []
        for i in 0 ... areas.count-1 {
            let area : CPDFEditArea = areas[i] as! CPDFEditArea
            oldBounds.append(NSStringFromRect(area.bounds))
            self.listView.setBoundsEditArea(area, withBounds: NSRectFromString(newBounds[i]))
        }
        self.listView.setNeedsDisplayForVisiblePages()
    }
    
}