NSTableView中的resizableImageWithCapInsets(基于视图)

时间:2012-11-21 23:12:34

标签: objective-c cocoa nstableview nstablecellview

我尝试为mac执行resizableImageWithCapInsets(如在iOS中)。

    // right bubble
    NSLog(@"==================== OLD VALUES ==============");
    NSLog(@"size->%@",NSStringFromSize(size));
    NSLog(@"cellView.frame->%@",NSStringFromRect(cellView.frame));

    NSLog(@"message.frame->%@",NSStringFromRect(cellView.message.frame));
    NSLog(@"background.frame->%@",NSStringFromRect(cellView.background.frame));

    cellView.background.frame =  CGRectMake(cellView.frame.size.width - size.width,
                                            - size.height + cellView.date.frame.size.height * 1.8, size.width, size.height);


    necessaryBackgroundImage = [[NSImage imageNamed:@"OutgoingMessageBuble.png"] stretchableImageWithLeftCapWidth:20 topCapHeight:15];

    cellView.message.frame = CGRectMake(cellView.frame.size.width - size.width,
                                        - size.height + cellView.date.frame.size.height * 1.8, size.width, size.height);

    NSLog(@"==================== NEW VALUES ==============");
    NSLog(@"message.frame->%@",NSStringFromRect(cellView.message.frame));
    NSLog(@"background.frame->%@",NSStringFromRect(cellView.background.frame));
    NSLog(@"necessaryBackgroundImage.size->%@",NSStringFromSize(necessaryBackgroundImage.size));
   cellView.background.image = necessaryBackgroundImage;

我从这里尝试NSImage子类: https://github.com/beefon/Mac---Stretchable-NSImage/blob/master/README

但不成功:

enter image description here

一个类总是返回错误大小的图像:

> 2012-11-22 01:02:30.009[37363:303] necessaryBackgroundImage.size->{43,
> 32} 2012-11-22 01:02:30.004[37363:303]
> necessaryBackgroundImage.size->{43, 32}

我希望图片的大小为必要的框架:

> 2012-11-22 01:02:30.003[37363:303] background.frame->{{50.6875,
> -115.19999999999999}, {265.3125, 162}}

请你解释一下,我哪里错了?我理解,代码片段表示我必须使用NSDrawNinePartImage,但更好的是避免很长的路要走。我也发现,没有在任何地方调用的子类NSImage的drawInRect,我不知道我怎么能推它。

1 个答案:

答案 0 :(得分:0)

Stretchable-NSImage没有改变图像,但改写了drawRect