英文:
Fontconfig: cannot find application font
问题
我模仿了这个链接中的代码（https://stackoverflow.com/questions/10542832/how-to-use-fontconfig-to-get-font-list-c-c），只是我想要添加对本地字体的支持，所以代码被修改如下。
FcConfig* config = FcInitLoadConfigAndFonts();
FcConfigAppFontAddDir(config, (FcChar8*) "../fonts");
FcConfigSubstitute(config, pat, FcMatchPattern);
FcDefaultSubstitute(pat);
FcStrList* dirs = FcConfigGetFontDirs(config);
FcChar8* current;
while ((current = FcStrListNext(dirs)) != NULL)
printf("%s\n", (char*) current);
FcResult res;
FcPattern* font = FcFontMatch(config, pat, &res);
if (font)
{
FcChar8* file = NULL;
if (FcPatternGetString(font, FC_FILE, 0, &file) == FcResultMatch)
{
printf("%s\n", (char*) file);
}
FcPatternDestroy(font);
}
FcPatternDestroy(pat);
FcStrListDone(dirs);
然而，我发现了以下情况：
- 在
fonts目录中出现了一个.uuid文件，表示该目录（以及其中的字体文件）被正确找到。 - 打印的目录不包含我的自定义目录。
- 即使我引用了我放入自定义目录中的字体，并且在系统字体目录中不存在，系统仍然找不到它，而是匹配了一个备用字体（Noto Sans CJK）。
更新：
只能通过字体名称而不是文件名引用字体。案件已结。
英文:
I imitated the code in this link, except that I wanted to add support for local fonts, so the code was adapted like this.
FcConfig* config = FcInitLoadConfigAndFonts();
FcConfigAppFontAddDir(config, (FcChar8*) "../fonts");
FcConfigSubstitute(config, pat, FcMatchPattern);
FcDefaultSubstitute(pat);
FcStrList* dirs = FcConfigGetFontDirs(config);
FcChar8* current;
while ((current = FcStrListNext(dirs)) != NULL)
printf("%s\n", (char*) current);
FcResult res;
FcPattern* font = FcFontMatch(config, pat, &res);
if (font)
{
FcChar8* file = NULL;
if (FcPatternGetString(font, FC_FILE, 0, &file) == FcResultMatch)
{
printf("%s\n", (char*) file);
}
FcPatternDestroy(font);
}
FcPatternDestroy(pat);
FcStrListDone(dirs);
However, I found the following situation:
- A
.uuidfile appears infontsdirectory, meaning that the directory (along with font files in it) is correctly found. - The printed directories does not contain my custom directory.
- Even when I am referencing a font that I put into the custom directory and does not exist in system font directories, the system cannot find it, and instead a fallback font (Noto Sans CJK) is matched instead.
Update:
The fonts can only be referenced through font name as opposed to file name. Case closed.
答案1
得分: 2
更新： 字体只能通过字体名称引用，而不是文件名称。案件已结案。
英文:
Update: The fonts can only be referenced through font name as opposed to file name. Case closed.
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