Resizing the window according to a variable swift - macos

Question

I have a NSViewController and a variable num. I want to change the size of the window dynamically according to that variable. Is there any way to do that in swift?

Answer 1

Let's say your window has an IBOutlet named "window", and your dynamic number is named "myDynamicNumber":
func resize() {
var windowFrame = window.frame
let oldWidth = windowFrame.size.width
let oldHeight = windowFrame.size.height
let toAdd = CGFloat(myDynamicNumber)
let newWidth = oldWidth + toAdd
let newHeight = oldHeight + toAdd
windowFrame.size = NSMakeSize(newWidth, newHeight)
window.setFrame(windowFrame, display: true)
}

Answer 2

In Swift 3 to resize the window you use setFrame.
An example from the ViewController:
func resizeWin(size:(CGFloat,CGFloat)){
self.view.window?.setFrame(NSRect(x:0,y:0,width:size.0,height:size.1), display: true)
}

Answer 3

I needed to toggle viewing a text view so I overlaid the window an invisible view - hideRect just short of the text view; in this way I can resize to the smaller (hideRect) and restore later to the original size - origRect. Hide and original rect captured at viewDidLoad(). Swift 3/Xcode 8.3.3
// class global contants
let kTitleUtility = 16
let kTitleNormal = 22
#IBOutlet var hideView: NSView!
var hideRect: NSRect?
var origRect: NSRect?
#IBAction func toggleContent(_ sender: Any) {
// Toggle content visibility
if let window = self.view.window {
let oldSize = window.contentView?.bounds.size
var frame = window.frame
if toggleButton.state == NSOffState {
frame.origin.y += ((oldSize?.height)! - (hideRect?.size.height)!)
window.setFrameOrigin(frame.origin)
window.setContentSize((hideRect?.size)!)
window.showsResizeIndicator = false
window.minSize = NSMakeSize((hideRect?.size.width)!,(hideRect?.size.height)!+CGFloat(kTitleNormal))
creditScroll.isHidden = true
}
else
{
let hugeSize = NSMakeSize(CGFloat(Float.greatestFiniteMagnitude), CGFloat(Float.greatestFiniteMagnitude))
frame.origin.y += ((oldSize?.height)! - (origRect?.size.height)!)
window.setFrameOrigin(frame.origin)
window.setContentSize((origRect?.size)!)
window.showsResizeIndicator = true
window.minSize = NSMakeSize((origRect?.size.width)!,(origRect?.size.height)!+CGFloat(kTitleNormal))
window.maxSize = hugeSize
creditScroll.isHidden = false
}
}
}
This also preserved the widow's visual origin, and sizing minimum.