Drawing with NSBezierPath

@interface StretchView : NSView {
 NSBezierPath *path;
}
- (NSPoint)randomPoint;

@end

@implementation StretchView

- (id)initWithFrame:(NSRect)frame {
    if (![super initWithFrame:frame]) 
  return nil;
 
 srandom(time(NULL));
 
 path = [[NSBezierPath alloc] init];
 [path setLineWidth:3.0];
 NSPoint p = [self randomPoint];
 [path moveToPoint:p];
 int i;
    for (i = 0; i < 15; i++) {
  p = [self randomPoint];
  [path lineToPoint:p];
 }
 [path closePath];
 return self;
}

- (void)dealloc
{
 [path release];
 [super dealloc];
}

- (NSPoint)randomPoint
{
 NSRect bounds = [self bounds];
 NSPoint result;
 result.x = bounds.origin.x + random() % (int)bounds.size.width;
 result.y = bounds.origin.y + random() % (int)bounds.size.height;
 return result;
}

- (void)drawRect:(NSRect)rect {
 NSRect bounds = [self bounds];
 [[NSColor greenColor] set];
 [NSBezierPath fillRect:bounds];
 
 [[NSColor whiteColor] set];
 [path fill];
 
}

@end