如何在不指定绝对路径的情况下使用 PIL.ImageFont.truetype 加载字体文件? [英] How I can load a font file with PIL.ImageFont.truetype without specifying the absolute path?

问题描述

当我在Windows中编写代码时，这段代码可以很好地加载字体文件:

ImageFont.truetype(filename='msyhbd.ttf', size=30);

我猜字体位置是在 Windows 注册表中注册的.但是当我将代码移到 Ubuntu，并将字体文件复制到/usr/share/fonts/时，代码找不到字体:

 self.font = core.getfont(字体、大小、索引、编码)IOError: 无法打开资源

如何让PIL在不指定绝对路径的情况下找到ttf文件?

解决方案

根据PIL文档，只搜索Windows字体目录:

<块引用>

在 Windows 上，如果给定的文件名不存在，加载器也会在 Windows 字体目录中查找.

http://effbot.org/imagingbook/imagefont.htm

所以你需要自己编写代码来搜索Linux上的完整路径.

但是，PIL 分支，Pillow 目前有一个 PR 来搜索 Linux 目录.目前尚不清楚要搜索所有 Linux 变体的目录，但您可以在此处查看代码，并可能对 PR 有所贡献:

https://github.com/python-pillow/Pillow/pull/682

When I write the code in Windows, this code can load the font file just fine:

ImageFont.truetype(filename='msyhbd.ttf', size=30);

I guess the font location is registered in Windows registry. But when I move the code to Ubuntu, and copy the font file over to /usr/share/fonts/, the code cannot locate the font:

 self.font = core.getfont(font, size, index, encoding)
 IOError: cannot open resource

How can I get PIL to find the ttf file without specifying the absolute path?

解决方案

According to the PIL documentation, only Windows font directory is searched:

On Windows, if the given file name does not exist, the loader also looks in Windows fonts directory.

http://effbot.org/imagingbook/imagefont.htm

So you need to write your own code to search for the full path on Linux.

However, Pillow, the PIL fork, currently has a PR to search a Linux directory. It's not exactly clear yet which directories to search for all Linux variants, but you can see the code here and perhaps contribute to the PR:

https://github.com/python-pillow/Pillow/pull/682

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