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我尝试为 mac 做 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;

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

但这不是成功:

在此处输入图像描述

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}

我希望图像大小为必要的框架:

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

请你能解释一下,我错在哪里?代码片段赞赏,我明白,我必须使用 NSDrawNinePartImage,但更好的是避免很长的路要走。我还发现,子类 NSImage 的 drawInRect 没有在任何地方调用,我不知道如何推送它。

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1 回答 1

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Stretchable-NSImage did't change the image, but rewrite the drawRect

于 2013-05-22T10:10:20.517 回答