Fix symbol fonts support with FT engine

It appears that the symbol_map we obtained with FreeType doesn't
work for common symbol fonts like Wingdings, in previous X11 code
we use the code path with normal charmap, to enable it we need to
make sure QT_NO_FONTCONFIG is not defined. And since the FcCharset
functions doesn't really operates on the font database, we can
safely skip the mutex calls.

Change-Id: I8c484de200be1d47c053b10be2c51d2273dcd359
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@nokia.com>

2 files changed, 6 insertions, 0 deletions

diff --git a/src/platformsupport/fontdatabases/fontconfig/fontconfig.pri b/src/platformsupport/fontdatabases/fontconfig/fontconfig.pri
index 2efcb4d4dc..7ea1c64e33 100644
--- a/src/platformsupport/fontdatabases/fontconfig/fontconfig.pri
+++ b/src/platformsupport/fontdatabases/fontconfig/fontconfig.pri
@@ -1,2 +1,3 @@
 HEADERS += $$PWD/qfontconfigdatabase_p.h
 SOURCES += $$PWD/qfontconfigdatabase.cpp
+DEFINES -= QT_NO_FONTCONFIG
diff --git a/src/platformsupport/fontdatabases/fontconfig/qfontconfigdatabase.cpp b/src/platformsupport/fontdatabases/fontconfig/qfontconfigdatabase.cpp
index 3c37be209e..575fbb9af9 100644
--- a/src/platformsupport/fontdatabases/fontconfig/qfontconfigdatabase.cpp
+++ b/src/platformsupport/fontdatabases/fontconfig/qfontconfigdatabase.cpp
@@ -503,6 +503,7 @@ QFontEngine *QFontconfigDatabase::fontEngine(const QFontDef &f, QUnicodeTables::
 
     FcResult result;
     FcPattern *match = FcFontMatch(0, pattern, &result);
+    FcCharSet *charset;
     if (match) {
         QFontEngineFT::HintStyle default_hint_style;
 
@@ -549,6 +550,7 @@ QFontEngine *QFontconfigDatabase::fontEngine(const QFontDef &f, QUnicodeTables::
         } else
             format = QFontEngineFT::Format_Mono;
 
+        FcPatternGetCharSet(match, FC_CHARSET, 0, &charset);
         FcPatternDestroy(match);
     } else
         format = antialias ? QFontEngineFT::Format_A8 : QFontEngineFT::Format_Mono;
@@ -571,6 +573,9 @@ QFontEngine *QFontconfigDatabase::fontEngine(const QFontDef &f, QUnicodeTables::
         }
     }
 
+    if (engine && engine->freetype && !engine->freetype->charset)
+        engine->freetype->charset = FcCharSetCopy(charset);
+
     return engine;
 }