UILabel sizeWithFont：问题。剪切斜体文本

发布于 2024-09-14 01:15:46 字数 1176 浏览 9 评论 0原文

我创建了一个显示单个大字符的 UILabel。即使使用 ClipsToBounds = NO;我仍然得到剪辑。

请参阅链接： http://img341.imageshack.us/img341/5310/screenshot20100814at243.png

我使用了以下代码：

 CGSize fBounds = [myLabel.text sizeWithFont:cFont];

获取字体的边框。标签的绘制方式如下：

myLabel = [[UILabel alloc] initWithFrame:CGRectMake(20, 20, 280, 300)];
 myLabel.clipsToBounds = NO;
 myLabel.numberOfLines = 1;
 myLabel.textAlignment = UITextAlignmentCenter;
 myLabel.adjustsFontSizeToFitWidth = YES;
 myLabel.minimumFontSize = 10;
 myLabel.text = @"A";
 myLabel.font = [UIFont fontWithName:@"CourierNewPSMT" size:300];
 myLabel.textColor = [UIColor blackColor];
 myLabel.backgroundColor = [UIColor colorWithRed:1 green:.5 blue:0 alpha:.5];

在下图中，从 sizeWithFont 返回的大小由半透明的蓝色矩形覆盖层呈现。正如您所看到的，使用斜体字体（在本例中为 Verdana-BoldItalic），字符会超出 sizeWithFont 返回的内容。此外，UILabel 的框架（橙色）也会剪辑角色。想法？也许我可以重写一些文本绘制例程。另外，不确定这是否与此处的问题相同：

UIButton.titleLabel 剪切文本问题

原文

I have created a UILabel that displays a single large character. Even with clipsToBounds = NO; I still get clipping.

See link: http://img341.imageshack.us/img341/5310/screenshot20100814at243.png

I used the following code:

 CGSize fBounds = [myLabel.text sizeWithFont:cFont];

To get what should be the bounding rectangle of the font. And the label is drawn with:

myLabel = [[UILabel alloc] initWithFrame:CGRectMake(20, 20, 280, 300)];
 myLabel.clipsToBounds = NO;
 myLabel.numberOfLines = 1;
 myLabel.textAlignment = UITextAlignmentCenter;
 myLabel.adjustsFontSizeToFitWidth = YES;
 myLabel.minimumFontSize = 10;
 myLabel.text = @"A";
 myLabel.font = [UIFont fontWithName:@"CourierNewPSMT" size:300];
 myLabel.textColor = [UIColor blackColor];
 myLabel.backgroundColor = [UIColor colorWithRed:1 green:.5 blue:0 alpha:.5];

In the image below, the size returned from sizeWithFont is rendered by the semi-transparent blue rectangle overlay. As you can see, with an italic font (in this case Verdana-BoldItalic), the character extends past what sizeWithFont returns. Further, the UILabel's frame (the orange color) also clips the character. Thoughts? Maybe I could override some text drawing routine. Also, not sure if this is the same problem as here:

UIButton.titleLabel clipping text problem

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