如何设置NSSegmentedControl背景图像

Question

我想设置NSSegmentedControl的背景图像，而不是图标图像。我对NSSegmentedCell进行子类化并重写drawSegment: inFrame: withView:函数。但这行不通。我该怎么做呢?

更新:我想设置半矩形的深色或浅色背景图像

Answer 1

子类化和重写drawSegment: inFrame: withView工作良好

- (void)drawSegment:(NSInteger)segment inFrame:(NSRect)frame withView:(NSView *)controlView
{
    NSImage* image = [NSImage imageNamed:NSImageNameBonjour];
    [image drawInRect:frame fromRect:NSZeroRect operation:NSCompositeSourceOver fraction:1.0];
    [super drawSegment:segment inFrame:frame withView:controlView];    
}

你还试了什么?
您是否在"界面生成器"中正确设置了分段控件的单元格类?