CODEWITHSUNDEEP
cocoanswindowappkit
Cristian
Cristian

Reputation: 7185

Set Window Resizable

In IB this can be done easily by checking the 'Resize' checkbox on or off. My problem is I want my main NSWindow to not be resizable, until a button is clicked, and then i want it to be resizable.

I've scoured the Internet but can't find anything? Can a window not be made to be resizable or not programmatically?

Thanks in advance everyone!

Upvotes: 18

Views: 15763

Answers (6)

Darkwonder
Darkwonder

Reputation: 1315

I am new to macOS development. None of the above solutions worked for me (Swift 4.2). I also didn't learn that much (copy/paste doesn't help with that).

I have created this NSWindow subclass. I use it in Interface builder. 

class MainDocumentChooserW: NSWindow {

    // NOTE: This method is called when the Window is used via Interface builder.
    // Setting the styleMask like this will override the IB settings.
    override init(contentRect: NSRect, styleMask style: NSWindow.StyleMask, backing backingStoreType: NSWindow.BackingStoreType, defer flag: Bool) {
        super.init(contentRect: contentRect, styleMask: style, backing: backingStoreType, defer: flag)
        styleMask = [.miniaturizable, .titled, .closable]
    }
}

Tested on macOS: High Sierra 10.13.6 (17G5019).

Upvotes: 0

Ken Thomases
Ken Thomases

Reputation: 90691

Since 10.6, you can change the style mask of a window using -[NSWindow setStyleMask:]. So, you'd do something like this:

In Objective-C

To make it resizable:

window.styleMask |= NSWindowStyleMaskResizable;

To make it non-resizable:

window.styleMask &= ~NSWindowStyleMaskResizable;

In Swift

To make it resizable:

mainWindow.styleMask = mainWindow.styleMask | NSWindowStyleMaskResizable

To make it non-resizable:

mainWindow.styleMask = mainWindow.styleMask & ~NSWindowStyleMaskResizable

Upvotes: 53

onmyway133
onmyway133

Reputation: 48205

In Swift 3,

if enabled {
  window.styleMask.update(with: .resizable)
} else {
  window.styleMask.remove(.resizable)
}

Upvotes: 4

uliwitness
uliwitness

Reputation: 8843

The Swift 3 solution to this issue is to use the OptionSet class described at:

https://developer.apple.com/reference/swift/optionset

In short:

To replace the set of flags, you now do something like:

myWindow.styleMask = [ .resizable, .titled, .closable ]

To add a flag, do something like:

myWindow.styleMask.insert( [ .miniaturizable, .fullscreen ] )

To remove a flag, something like:

myWindow.styleMask.remove( [ .resizable ] )

Upvotes: 10

Aral Balkan
Aral Balkan

Reputation: 5981

In Xcode 8 / Swift 3, try something like:

// e.g., on a view controller’s viewDidAppear() method:
if let styleMask = view.window?.styleMask
{
    view.window!.styleMask = NSWindowStyleMask(rawValue: styleMask.rawValue | NSWindowStyleMask.resizable.rawValue)
}

Upvotes: 1

Peter Hosey
Peter Hosey

Reputation: 96393

You can't change the style mask of a window after creating it, but you can set the window's minimum and maximum frame size to the same size. Do that after you and your resizable window awake from nib, and then change the maximum and optionally the minimum size back when the user clicks the button.

Upvotes: 4

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