CODEWITHSUNDEEP
objective-ccocoamacosnswindow
Joshua
Joshua

Reputation: 15500

Borderless NSWindow with rounded corners

I am creating a custom NSWindow with no title bar and am using NSBorderlessWindowMask to make it completely borderless. The problem I have with this however is that the window has sharp edges. As well as this there is no resize control.

How would I give a borderless window rounded corners?

This is not a duplicate of this question as that question was more about removing the title bar and it currently holds no answers.

Upvotes: 4

Views: 5968

Answers (3)

user187676
user187676

Reputation:

Only titled windows get the rounded corners. So the only thing you have to do is this:

window.styleMask = [.titled]
window.titleVisibility = .hidden
window.titlebarAppearsTransparent = true

This should be the minimal configuration for a rounded window without a title bar.

Upvotes: 1

Mecki
Mecki

Reputation: 132919

The easiest way to get a window with rounded corners is to place a NSBox into the window as these boxes have customizable rounded corners and customizable borders. If you then set the window to non-opaque and the background color to transparent ("clear color"), you have a NSWindow with rounded corners that draws a normal window shadow (even on older systems where such a window would otherwise not have a shadow). Most of it can be done in Interface Builder. See here for details.

Upvotes: 0

Mark
Mark

Reputation: 6128

You can make the window totally transparent and handle drawing everything yourself. The sample I have is for an OpenGL view, but it should work for a Quartz view or Cocoa view as well.

Add the following to the initializer of your NSWindow subclass where you create the new window using the NSBorderlessWindowMask constant.

[self setOpaque:NO];
[self setBackgroundColor:[NSColor clearColor]];

You will probably have to draw the resize control yourself. The sample I took this from is a full screen window so resizing isn't necessary.

Good Luck.

Upvotes: 8

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