macOS-04.03-NSTextView

//
// AppDelegate.swift
// NSTextView
//
// Created by iDevFans on 16/6/28.
// Copyright © 2016年 http://www.macdev.io. All rights reserved.
//

import Cocoa

@NSApplicationMain
class AppDelegate: NSObject, NSApplicationDelegate,NSTextDelegate, NSTextStorageDelegate {

@IBOutlet weak var window: NSWindow!
@IBOutlet var textView: NSTextView!

@IBOutlet var attibuteTextView: NSTextView!

func applicationDidFinishLaunching(_ aNotification: Notification) {
    // 定义富文本属性
    let attributedString = NSMutableAttributedString(string:"attributedString" as String)
    attributedString.addAttributes([NSAttributedStringKey.foregroundColor: NSColor.blue as Any ], range:  NSMakeRange(0, 10))
    attributedString.addAttributes([NSAttributedStringKey.foregroundColor: NSColor.green as Any ], range:  NSMakeRange(10, 6))
    //设置属性
    textView.textStorage?.setAttributedString(attributedString)        
    textView.textStorage?.delegate = self
  
    
}


override func textStorageDidProcessEditing(_ notification: Notification) {
    self.perform(#selector(self.setHeightToMatchContents), with: nil, afterDelay: 0.0)
}
///Marker: 设置视图大小
@objc func setHeightToMatchContents() {
    let naturalSize: NSSize = self.naturalSize()
    if let scrollView = self.textView.enclosingScrollView {
        let frame = scrollView.frame
        scrollView.frame = NSMakeRect(frame.origin.x, frame.origin.y, frame.size.width, naturalSize.height + 4)
    }
}

func naturalSize() -> NSSize {
    let bounds: NSRect = self.textView.bounds //文本视图大小
    let layoutManager: NSLayoutManager = textView.textStorage!.layoutManagers[0]  //文本视图布局管理
    let textContainer: NSTextContainer = layoutManager.textContainers[0]     //获取布局中的文本容器
    textContainer.containerSize = NSMakeSize(bounds.size.width, 1.0e7)   //设置大小
    layoutManager.glyphRange(for: textContainer)
    let naturalSize: NSSize? = layoutManager.usedRect(for: textContainer).size
    return naturalSize!
}


func applicationWillTerminate(_ aNotification: Notification) {
    // Insert code here to tear down your application
}

///Mark: -开始编辑
func textDidBeginEditing(_ notification: Notification) {
    if let textView = notification.object as? NSTextView {
        let text = textView.string
        print("textDidBeginEditing text \(text)")
        
    }
}
 ///Mark: -结束编辑
func textDidEndEditing(_ notification: Notification) {
    if let textView = notification.object as? NSTextView {
        let text = textView.string
        print("textDidEndEditing text \(text)")
    }
}
    ///Mark: -内容改变
func textDidChange(_ notification: Notification) {
    if let textView = notification.object as? NSTextView {
         let text = textView.string 
         print("textDidChange text \(text)")
        
    }
}

}