NSImageView mouseDragged Value pass back to windowController - swift

Question

Can anyone please show me how to get the position X and Y back to my WindowController NSTextField (testTextX and testTextY)?
I created a windowController, NSImage and NSTextField programmatically. I added an image "dot" to the NSView and would like the "dot" image draggable and return the position X and Y.
I manage to have the image added and draggable but I do not know how can I pass the position X and Y on mouseDragged back to the NSTextField at my WindowController (testTextX and testTextY)?
The current display as below, when click on the "dot" image, it is draggrable to any position.
I can print out the position X and Y from the NSImageView func mouseDragged(theEvent: NSEvent) when image was dragged.
I am stuck at the how to pass the position X and Y back to WindowController.
My WindowController.swift code as below:
public class MyWindowController: NSWindowController, NSWindowDelegate {
// MARK: Constants
// 1. Define min&max window size
var fWidth:CGFloat = 0
var fHeight:CGFloat = 0
var vWidth:CGFloat = 0
var vHeight:CGFloat = 0
var blankPage: NSView!
var viewDotImg: NSImageView!
var testTextX: NSTextField!
var testTextY: NSTextField!
var modalWinHeight: CGFloat = 0
var m_window:NSWindow = NSWindow()
// MARK: Initializer
init(){
super.init(window: self.m_window)
}
init(channelId:Int){
super.init(window:self.m_window)
// Get the window full width and height
fWidth = (NSScreen.mainScreen()?.frame.width)!
fHeight = (NSScreen.mainScreen()?.frame.height)!
// Get the window visible width and height
vWidth = (NSScreen.mainScreen()?.visibleFrame.width)!
vHeight = (NSScreen.mainScreen()?.visibleFrame.height)!
// Get the position X and Y for Window
let winPosX: CGFloat = fWidth - vWidth
let winPosY: CGFloat = fHeight - vHeight
// Divide the height by 3
let avgHeight: CGFloat = vHeight / 3
// Set the max window height as avgHeight * 1.3
let modalWinHeight: CGFloat = avgHeight * 1.3
// Set the window frame
self.m_window = NSWindow(contentRect: NSMakeRect(winPosX, winPosY, vWidth, modalWinHeight),
styleMask: NSClosableWindowMask | NSMiniaturizableWindowMask | NSTitledWindowMask,
backing: NSBackingStoreType.Buffered, `defer`: false);
// Window delegate
self.m_window.delegate = self
// Add a blank NSView with Gradian background colour
blankPage = CGradiantBlank(x: x, y:y, width:width, height: height)
self.window?.contentView = blankPage
// Add Image Dot to NSView
viewDotImg = DragNSImageView(x: 200, y: 200, width: 10, height: 10)
// Add Two TextField to NSView
testTextX = TextLabel(x: 200, y: 10, width: 100, height: 24, value: "100")
testTextY = TextLabel(x: 305, y: 10, width: 100, height: 24, value: "100")
blankPage.addSubview(viewDotImg)
blankPage.addSubview(testTextX)
blankPage.addSubview(testTextY)
}
func updTestXY(x:Double, y:Double){
testTextX.stringValue = String(x)
testTextY.stringValue = String(y)
}
override public init(window: NSWindow?) {
super.init(window: window)
}
required public init?(coder:NSCoder){
super.init(coder: coder)
}
}
My NSImageView code as below:
public class DragNSImageView: NSImageView {
private var xWidth: CGFloat = 0
private var xHeight: CGFloat = 0
init(x:CGFloat, y:CGFloat, width:CGFloat, height:CGFloat, chId: Int) {
super.init(frame: NSRect(x: x,y: y,width: width,height: height))
super.imageScaling = NSImageScaling.ScaleAxesIndependently
super.image = NSImage(named: "dot-10")
xWidth = width
xHeight = height
}
required public init?(coder: NSCoder) {
super.init(coder: coder)
}
override public func drawRect(dirtyRect: NSRect) {
super.drawRect(dirtyRect)
}
public override func mouseDragged(theEvent: NSEvent) {
super.mouseDown(theEvent)
let location = theEvent.locationInWindow
let pX: CGFloat = location.x
let pY: CGFloat = location.y
super.frame = NSRect(x: pX,y: pY,width: xWidth,height: xHeight)
Swift.print("X: \(location.x)" Y: \(location.y))
/* How to pass this location.x and location.y back to WindowController func updateTestXY()?
updTestXY(Double(location.x), y:Double(location.y))
*/
}
}
My NSTextField code as below:
public class TextLabel: NSTextField {
// MARK: Initializer
init(){
super.init(frame: NSRect(x: 0, y: 0, width: 90, height: 10))
}
convenience init(x:CGFloat, y:CGFloat, width:CGFloat, height:CGFloat, value:String){
self.init()
super.wantsLayer = true
super.backgroundColor = NSColor.darkGrayColor()
super.textColor = NSColor.whiteColor()
super.stringValue = value
super.frame = NSRect(x: x, y: y, width: width, height: height)
}
required public init?(coder: NSCoder) {
super.init(coder: coder)
}
override public func drawRect(dirtyRect: NSRect) {
super.drawRect(dirtyRect)
}
}

Answer 1

Ok, I found the solution.
let mainWindow = self.window?.windowController as! MyWindowController
mainWindow.updXY(location.x, y:location.y, refName: refName)
If more than one "dot" image, then add the following code to the NSImageView init()
super.identifier = "ReferenceName1"
Now, go to NSImageView mouseDragged(theEvent: NSEvent) method and add the following line:
let refName = super.identifier
This will be use at the MyWindowController to detect which "dot" image was dragged when calling the specified function. In my case, I call the
updXY(location.x, y:location.y, refName: refName)
So, at MyWindowController, I use the following to do the work.
public func updXy(x: CGFloat, y: CGFloat, refName: String){
if refName == "ReferenceName1" {
}else if refName == "ReferenceName2" {
}
}