Fix OpenType fonts with cmap tables on Windows

Task-number: QTBUG-31656
Reviewed-by: Konstantin Ritt <[email protected]>
Reviewed-by: Lars Knoll <[email protected]>
Change-Id: If941bddb6173b6bd93117ba5bd35fa4050f29e3d
(cherry picked from qtbase/0a170be576153b84ee6249f1a2b7cbce1ef10d84)

Author: Josh Faust

src/gui/text/qfontengine_win.cpp

@@ -197,12 +197,18 @@ bool QFontEngineWin::hasCFFTable() const
     return GetFontData(hdc, MAKE_TAG('C', 'F', 'F', ' '), 0, 0, 0) != GDI_ERROR;
 }
 
+bool QFontEngineWin::hasCMapTable() const
+{
+    HDC hdc = shared_dc();
+    SelectObject(hdc, hfont);
+    return GetFontData(hdc, MAKE_TAG('c', 'm', 'a', 'p'), 0, 0, 0) != GDI_ERROR;
+}
+
 void QFontEngineWin::getCMap()
 {
-    ttf = (bool)(tm.tmPitchAndFamily & TMPF_TRUETYPE);
+    ttf = (bool)(tm.tmPitchAndFamily & TMPF_TRUETYPE) || hasCMapTable();
 
-    // TMPF_TRUETYPE is not set for fonts with CFF tables
-    cffTable = !ttf && hasCFFTable();
+    cffTable = hasCFFTable();
 
     HDC hdc = shared_dc();
     SelectObject(hdc, hfont);
@@ -384,6 +390,7 @@ HGDIOBJ QFontEngineWin::selectDesignFont() const
 {
     LOGFONT f = logfont;
     f.lfHeight = unitsPerEm;
+    f.lfWidth = 0;
     HFONT designFont = CreateFontIndirect(&f);
     return SelectObject(shared_dc(), designFont);
 }

src/gui/text/qfontengine_win_p.h

@@ -147,6 +147,7 @@ class QFontEngineWin : public QFontEngine
 
 private:
     bool hasCFFTable() const;
+    bool hasCMapTable() const;
     QNativeImage *drawGDIGlyph(HFONT font, glyph_t, int margin, const QTransform &xform,
                                QImage::Format mask_format);