解决方法
使用
NSBezierPath
- (void)drawRect:(NSRect)dirtyRect { NSPoint origin = { 0.0,0.0 }; NSRect rect; rect.origin = origin; rect.size.width = [self bounds].size.width; rect.size.height = [self bounds].size.height; NSBezierPath * path; path = [NSBezierPath bezierPathWithRect:rect]; [path setlinewidth:2]; [[NSColor colorWithCalibratedWhite:1.0 alpha:0.394] set]; [path fill]; [[NSColor redColor] set]; [path stroke]; if (([[self window] firstResponder] == [self currentEditor]) && [NSApp isActive]) { [NSGraphicsContext saveGraphicsstate]; NSSetFocusRingStyle(NSFocusRingOnly); [path fill]; [NSGraphicsContext restoreGraphicsstate]; } else { [[self attributedStringValue] drawInRect:rect]; } }
输出:
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