Make QtQuick2 compile on QPA

Moved the logic to set pixel size into the font engines to avoid
making the platform plugin interface too complex, and added a function
in QPA to make an isolated font engine based on font data. Currently
none of the QPA back-ends supports it, but it compiles and spits out
a warning if you try to create a QRawFont from data there. This isn't
used in QtQuick2 anyway.

Reviewed-by: Jiang Jiang

1 files changed, 17 insertions, 0 deletions

diff --git a/src/gui/text/qfontengine_win.cpp b/src/gui/text/qfontengine_win.cpp
index 82d9da0..54d7ec2 100644
--- a/src/gui/text/qfontengine_win.cpp
+++ b/src/gui/text/qfontengine_win.cpp
@@ -1284,6 +1284,23 @@ QImage QFontEngineWin::alphaRGBMapForGlyph(glyph_t glyph, QFixed, int margin, co
     return rgbMask;
 }
 
+// From qfontdatabase_win.cpp
+extern QFontEngine *qt_load_font_engine_win(const QFontDef &request);
+QFontEngine *QFontEngineWin::cloneWithSize(qreal pixelSize) const
+{
+    QFontDef request = fontDef;
+    QString actualFontName = request.family;
+    if (!uniqueFamilyName.isEmpty())
+        request.family = uniqueFamilyName;
+    request.pixelSize = pixelSize;
+
+    QFontEngine *fontEngine = qt_load_font_engine_win(request);
+    if (fontEngine != NULL)
+        fontEngine->fontDef.family = actualFontName;
+
+    return fontEngine;
+}
+
 // -------------------------------------- Multi font engine
 
 QFontEngineMultiWin::QFontEngineMultiWin(QFontEngine *first, const QStringList &fallbacks)