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-rw-r--r--src/fontcache.cpp80
1 files changed, 79 insertions, 1 deletions
diff --git a/src/fontcache.cpp b/src/fontcache.cpp
index bc28c1034..1669ec6dc 100644
--- a/src/fontcache.cpp
+++ b/src/fontcache.cpp
@@ -152,6 +152,84 @@ registry_no_font_found:
return err;
}
+/**
+ * Fonts can have localised names and when the system locale is the same as
+ * one of those localised names Windows will always return that localised name
+ * instead of allowing to get the non-localised (English US) name of the font.
+ * This will later on give problems as freetype uses the non-localised name of
+ * the font and we need to compare based on that name.
+ * Windows furthermore DOES NOT have an API to get the non-localised name nor
+ * can we override the system locale. This means that we have to actually read
+ * the font itself to gather the font name we want.
+ * Based on: http://blogs.msdn.com/michkap/archive/2006/02/13/530814.aspx
+ * @param logfont the font information to get the english name of.
+ * @return the English name (if it could be found).
+ */
+static const char *GetEnglishFontName(const ENUMLOGFONTEX *logfont)
+{
+ static char font_name[MAX_PATH];
+ const char *ret_font_name = NULL;
+
+ HFONT font = CreateFontIndirect(&logfont->elfLogFont);
+ if (font == NULL) goto err1;
+
+ HDC dc = GetDC(NULL);
+ HGDIOBJ oldfont = SelectObject(dc, font);
+ DWORD dw = GetFontData(dc, 'eman', 0, NULL, 0);
+ if (dw == GDI_ERROR) goto err2;
+
+ byte *buf = MallocT<byte>(dw);
+ dw = GetFontData(dc, 'eman', 0, buf, dw);
+ if (dw == GDI_ERROR) goto err3;
+
+ uint pos = 0;
+ uint16 format = buf[pos++] << 8;
+ format += buf[pos++];
+ assert(format == 0);
+ uint16 count = buf[pos++] << 8;
+ count += buf[pos++];
+ uint16 stringOffset = buf[pos++] << 8;
+ stringOffset += buf[pos++];
+ for (uint i = 0; i < count; i++) {
+ uint16 platformId = buf[pos++] << 8;
+ platformId += buf[pos++];
+ uint16 encodingId = buf[pos++] << 8;
+ encodingId += buf[pos++];
+ uint16 languageId = buf[pos++] << 8;
+ languageId += buf[pos++];
+ uint16 nameId = buf[pos++] << 8;
+ nameId += buf[pos++];
+ if (nameId != 1) {
+ pos += 4; // skip length and offset
+ continue;
+ }
+ uint16 length = buf[pos++] << 8;
+ length += buf[pos++];
+ uint16 offset = buf[pos++] << 8;
+ offset += buf[pos++];
+
+ /* Don't buffer overflow */
+ length = min(length, MAX_PATH - 1);
+ for (uint j = 0; j < length; j++) font_name[j] = buf[stringOffset + offset + j];
+ font_name[length] = '\0';
+
+ if ((platformId == 1 && languageId == 0) || // Macintosh English
+ (platformId == 3 && languageId == 0x0409)) { // Microsoft English (US)
+ ret_font_name = font_name;
+ break;
+ }
+ }
+
+err3:
+ free(buf);
+err2:
+ SelectObject(dc, oldfont);
+ ReleaseDC(NULL, dc);
+err1:
+ DeleteObject(font);
+
+ return ret_font_name == NULL ? WIDE_TO_MB((const TCHAR*)logfont->elfFullName) : ret_font_name;
+}
struct EFCParam {
FreeTypeSettings *settings;
@@ -184,7 +262,7 @@ static int CALLBACK EnumFontCallback(const ENUMLOGFONTEX *logfont, const NEWTEXT
if ((fs.fsCsb[0] & info->locale.lsCsbSupported[0]) == 0 && (fs.fsCsb[1] & info->locale.lsCsbSupported[1]) == 0) return 1;
}
- const char *font_name = WIDE_TO_MB((const TCHAR*)logfont->elfFullName);
+ const char *font_name = GetEnglishFontName(logfont);
DEBUG(freetype, 1, "Fallback font: %s", font_name);
strecpy(info->settings->small_font, font_name, lastof(info->settings->small_font));