Question

I m trying to draw at the top of my NSView which has some subviews. In fact I m trying to reproduce the connection line style of Interface Builder. Here is the code I m using for the moment:

- (void)drawRect:(CGRect)dirtyRect 
{
    // Background color
    [[NSColor whiteColor] setFill];
    NSRectFill(dirtyRect);

    // Draw line
    if(_connecting)
    {
        CGContextRef c = [[NSGraphicsContext currentContext] graphicsPort];
        [[NSColor redColor] setStroke];

        CGContextMoveToPoint(c, _start.x, _start.y);
        CGContextAddLineToPoint(c, _end.x, _end.y);        
        CGContextSetLineWidth(c, LINE_WIDTH); 
        CGContextClosePath(c);
        CGContextStrokePath(c);
    }
}

第一部分是仿照我的<代码>。页: 1 (如果你知道另一种方式,请告诉我,原因一来自“i”开发公司,而我错了backgroundColor property of View

Then if a connection if detected, I draw it with 2 NSPoints. This code works but I didn t get it to draw over subviews, only on the first NSView.

Answer 1

家长的观点不能超越其次观点。你们必须再对次观点提出看法,并在此行。

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