Jo’s BookshelfCocoa – Button 颜色设置

- (NSRect)drawTitle:(NSAttributedString *)title withFrame:(NSRect)frame inView:(NSView *)controlView
{
    NSSize titleSize =  [title size];
    
    //居中显示
    CGFloat titleY = frame.origin.y + (frame.size.height - titleSize.height)/2;
    NSRect rectTitle = frame;
    
    rectTitle.origin.y = titleY;
    
    NSMutableAttributedString *titleStr =[[NSMutableAttributedString alloc]
                                          initWithAttributedString:title];
    [titleStr addAttribute:NSForegroundColorAttributeName value:CNKIColor(25, 135, 211, 1.0)
                     range:NSMakeRange(0, titleStr.length)];
    [titleStr drawInRect:rectTitle];
    
    return frame;
}