Re: Drawing into custom view from another object
Re: Drawing into custom view from another object
- Subject: Re: Drawing into custom view from another object
- From: "John C. Randolph" <email@hidden>
- Date: Wed, 21 Aug 2002 16:08:41 -0700
On Wednesday, August 21, 2002, at 03:46 PM, Nikita Zhuk wrote:
Hi there,
I have a custom view (a subclass of NSView, named "theView"), and I
would like that another object would be able to draw NSBezierPaths
into that view. This another object (let's call it "theShip") is a
subclass of NSObject, so calling mePath = [NSBezierPath
bezierPathWithRect:myRect]; and [mePath fill]; doesn't do a thing, of
course (as it would in subclass of NSView). In a NSView subclass I
would draw a simple blue rect like this:
[[NSColor blueColor] set];
myRect = NSMakeRect(x,y,20,20);
meBpath = [[NSBezierPath bezierPathWithRect:myRect] retain];
[meBpath fill];
So the question is, how can I draw things from theShip's function into
theView? This is probably a pretty basic question, but I didn't find
any helpful messages from mailing list archive.
You need to call the code above while the view in question has the
drawing focus. You can either do this:
[myView lockFocus];
[theShip draw];
[myView unlockFocus];
or just call [theShip draw] from within myView's -drawRect: method.
(This is preferred, BTW.)
-jcr
John C. Randolph <email@hidden> (408) 974-8819
Sr. Cocoa Software Engineer,
Apple Worldwide Developer Relations
http://developer.apple.com/cocoa/index.html
_______________________________________________
cocoa-dev mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/cocoa-dev
Do not post admin requests to the list. They will be ignored.