Move glyphMargin() to QFontEngine

glyphMargin() support for QTextureGlyphCache is implemented in
respective font engines, thus this function is platform dependent.
Before Qt 5 the code is guarded in macros like #ifdef Q_WS_MAC,
now we should move them into QFontEngine and its subclasses.

So far only Windows font engines support it. FreeType and Core Text
based font engines all ignore it.

Change-Id: Ia14016533d8fbfaacf848a7d3bc928f8197318f5
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@nokia.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/src/platformsupport/fontdatabases/mac/qfontengine_coretext_p.h b/src/platformsupport/fontdatabases/mac/qfontengine_coretext_p.h
index 6e5e142b13..ba7107768b 100644
--- a/src/platformsupport/fontdatabases/mac/qfontengine_coretext_p.h
+++ b/src/platformsupport/fontdatabases/mac/qfontengine_coretext_p.h
@@ -91,18 +91,19 @@ public:
     virtual bool getSfntTableData(uint /*tag*/, uchar * /*buffer*/, uint * /*length*/) const;
     virtual void getUnscaledGlyph(glyph_t glyph, QPainterPath *path, glyph_metrics_t *metrics);
     virtual QImage alphaMapForGlyph(glyph_t, QFixed subPixelPosition);
-    virtual QImage alphaRGBMapForGlyph(glyph_t, QFixed subPixelPosition, int margin, const QTransform &t);
+    virtual QImage alphaRGBMapForGlyph(glyph_t, QFixed subPixelPosition, const QTransform &t);
     virtual qreal minRightBearing() const;
     virtual qreal minLeftBearing() const;
     virtual QFixed emSquareSize() const;
 
     virtual QFontEngine *cloneWithSize(qreal pixelSize) const;
+    virtual int glyphMargin(QFontEngineGlyphCache::Type type) { return 0; }
 
 private:
     friend class QRawFontPrivate;
 
     void init();
-    QImage imageForGlyph(glyph_t glyph, QFixed subPixelPosition, int margin, bool colorful);
+    QImage imageForGlyph(glyph_t glyph, QFixed subPixelPosition, bool colorful);
     CTFontRef ctfont;
     CGFontRef cgFont;
     int synthesisFlags;