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Re: Java-Cocoa drawing -- help!
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Re: Java-Cocoa drawing -- help!


  • Subject: Re: Java-Cocoa drawing -- help!
  • From: Moray Taylor <email@hidden>
  • Date: Mon, 12 Apr 2004 15:29:24 +0100

Jim,

From your code snippets, it doesn't look like you have subclassed NSView, you will need to do this before you can do custom drawing in an NSView.

Once you have subclassed the view, you need to override the drawRect method with something like this...

public void drawRect(NSRect rect) {
NSRect nr = new NSRect(0,0,40,40);

NSBezierPath BP = NSBezierPath.bezierPath();
NSColor.colorWithCalibratedRGB(1f, 0f, 0f, 0.5f).set();
BP.fillRect(nr);

}

This will draw a transparent red rectangle in your view.

Let me know if you need any more info.

Cheers

Moray

In IB, I have created a window with a NSview, and have called it myview:

public NSView myview;

Now, how do I draw a simple rectangle using NSRect to this NSview?

I hoped that something like...

nr = new NSrect(0,0,40,40);
myview.drawRect(nr);

...would do it, but no. It compiles without error or warning -- yet
does nothing. What is the proper way to draw to a NSView?

Jim
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  • Follow-Ups:
    • Re: Java-Cocoa drawing -- help!
      • From: Shawn Erickson <email@hidden>
    • Re: Java-Cocoa drawing -- help!
      • From: James Burton <email@hidden>
References: 
 >Java-Cocoa drawing -- help! (From: James Burton <email@hidden>)

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