我可以改变颜色吗NSTableView's border
。指针处的灰线。
谢谢。
你需要子类化你的NSScrollView
. NSScrollView
通常不进行任何绘图,并且可能以这种方式与其子视图进行奇怪的交互。我建议放一些类似的东西
- (void)drawRect:(NSRect)dirtyRect {
[super drawRect:dirtyRect];
// We're going to be modifying the state for this,
// so allow it to be restored later
[NSGraphicsContext saveGraphicsState];
// Choose the correct color; isFirstResponder is a custom
// ivar set in becomeFirstResponder and resignFirstResponder
[[NSColor redColor]set];
// Create two rects, one slightly outset from the bounds,
// one slightly inset
NSRect bounds = [self bounds];
NSRect innerRect = NSInsetRect(bounds, 2, 2);
NSRect outerRect = NSMakeRect(bounds.origin.x - 2,
bounds.origin.y - 2,
bounds.size.width + 4,
bounds.size.height + 4);
// Create a bezier path using those two rects; this will
// become the clipping path of the context
NSBezierPath * clipPath = [NSBezierPath bezierPathWithRect:outerRect];
[clipPath appendBezierPath:[NSBezierPath bezierPathWithRect:innerRect]];
// Change the current clipping path of the context to
// the enclosed area of clipPath; "enclosed" defined by
// winding rule. Drawing will be restricted to this area.
// N.B. that the winding rule makes the order that the
// rects were added to the path important.
[clipPath setWindingRule:NSEvenOddWindingRule];
[clipPath setClip];
// Fill the rect; drawing is clipped and the inner rect
// is not drawn in
[[NSBezierPath bezierPathWithRect:outerRect] fill];
[NSGraphicsContext restoreGraphicsState];
}
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