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Change: [OSX] When auto-detecting a font, try for sans-serif first.

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On a display, especially with small fonts or low pixel sizes, sans-serif
fonts are usually easier to read than serif fonts.
This commit is contained in:
Michael Lutz
2021-02-13 23:08:02 +01:00
parent 6755ff63e1
commit b66e977acd
1 changed files with 32 additions and 25 deletions
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7
src/os/macosx/font_osx.cpp
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@@ -101,6 +101,7 @@ bool SetFallbackFont(FreeTypeSettings *settings, const char *language_isocode, i
CFAutoRelease<CFArrayRef> descs(CTFontDescriptorCreateMatchingFontDescriptors(lang_desc.get(), mandatory_attribs.get())); CFAutoRelease<CFArrayRef> descs(CTFontDescriptorCreateMatchingFontDescriptors(lang_desc.get(), mandatory_attribs.get()));
bool result = false; bool result = false;
for (int tries = 0; tries < 2; tries++) {
for (CFIndex i = 0; descs.get() != nullptr && i < CFArrayGetCount(descs.get()); i++) { for (CFIndex i = 0; descs.get() != nullptr && i < CFArrayGetCount(descs.get()); i++) {
CTFontDescriptorRef font = (CTFontDescriptorRef)CFArrayGetValueAtIndex(descs.get(), i); CTFontDescriptorRef font = (CTFontDescriptorRef)CFArrayGetValueAtIndex(descs.get(), i);
@@ -121,6 +122,11 @@ bool SetFallbackFont(FreeTypeSettings *settings, const char *language_isocode, i
CFAutoRelease<CFStringRef> font_name((CFStringRef)CTFontDescriptorCopyAttribute(font, kCTFontDisplayNameAttribute)); CFAutoRelease<CFStringRef> font_name((CFStringRef)CTFontDescriptorCopyAttribute(font, kCTFontDisplayNameAttribute));
CFStringGetCString(font_name.get(), name, lengthof(name), kCFStringEncodingUTF8); CFStringGetCString(font_name.get(), name, lengthof(name), kCFStringEncodingUTF8);
/* Serif fonts usually look worse on-screen with only small
* font sizes. As such, we try for a sans-serif font first.
* If we can't find one in the first try, try all fonts. */
if (tries == 0 && (symbolic_traits & kCTFontClassMaskTrait) != (CTFontStylisticClass)kCTFontSansSerifClass) continue;
/* There are some special fonts starting with an '.' and the last /* There are some special fonts starting with an '.' and the last
* resort font that aren't usable. Skip them. */ * resort font that aren't usable. Skip them. */
if (name[0] == '.' || strncmp(name, "LastResort", 10) == 0) continue; if (name[0] == '.' || strncmp(name, "LastResort", 10) == 0) continue;
@@ -133,6 +139,7 @@ bool SetFallbackFont(FreeTypeSettings *settings, const char *language_isocode, i
break; break;
} }
} }
}
if (!result) { if (!result) {
/* For some OS versions, the font 'Arial Unicode MS' does not report all languages it /* For some OS versions, the font 'Arial Unicode MS' does not report all languages it