/*

 Copyright (C) 2017 Apple Inc. All Rights Reserved.

 See LICENSE.txt for this sample’s licensing information

 Abstract:

 A NSViewController subclass showing how to use IBActions to manipulate a view.

 */

import Cocoa

// Many of the methods here are similar to those in the simpler DotView example.

// See that example for detailed explanations; here we will discuss those

// features that are unique to CircleView.

class ViewController: NSViewController {

    @IBOutlet weak var circleView: CircleView!

    // DotView uses action methods to set its parameters.  Here we have

    // factored each of those into a method to set each parameter directly

    // and a separate action method.

    @IBAction func applyRadius(_ sender: NSSlider) {

        circleView.radius = CGFloat(sender.doubleValue)

    }

    @IBAction func applyStartingAngle(_ sender: NSSlider) {

        circleView.startingAngle = CGFloat(sender.doubleValue)

    }

    @IBAction func applyString(_ sender: NSTextField) {

        circleView.string = sender.stringValue

    }

    @IBAction func applyColor(_ sender: NSColorWell) {

        circleView.textColor = sender.color

    }

    @IBAction func toggleAnimation(_ sender: NSButton) {

        circleView.toggleAnimation()

    }

    // DotView changes location on mouse up, but here we choose to do so

    // on mouse down and mouse drags, so the text will follow the mouse.

    public override func mouseDown(with event: NSEvent) {

        self.adjustView(with: event)

    }

    public override func mouseDragged(with event: NSEvent) {

        self.adjustView(with: event)

    }

    private func adjustView(with event: NSEvent) {

        circleView.center = circleView.convert(event.locationInWindow, from: nil)

    }

}