Adapt font engines for Windows/QPA.
Export QFontEngineMulti and glyph_metrics_t. Implement alphaMapForGlyph() for the multifont-engines which is called in the QPA code paths (similar to boundingBox()). Acked-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@nokia.com>
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@ -3045,7 +3045,7 @@ void QRasterPaintEngine::drawTextItem(const QPointF &p, const QTextItem &textIte
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ensurePen();
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ensureState();
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#if defined (Q_OS_WIN) || defined(Q_WS_MAC)
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#if defined (Q_WS_WIN) || defined(Q_WS_MAC)
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if (!supportsTransformations(ti.fontEngine)) {
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QVarLengthArray<QFixedPoint> positions;
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@ -1674,11 +1674,42 @@ bool QFontEngineMulti::canRender(const QChar *string, int len)
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return allExist;
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}
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QImage QFontEngineMulti::alphaMapForGlyph(glyph_t)
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/* Implement alphaMapForGlyph() which is called by Lighthouse/Windows code.
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* Ideally, that code should be fixed to correctly handle QFontEngineMulti. */
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QImage QFontEngineMulti::alphaMapForGlyph(glyph_t glyph)
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{
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Q_ASSERT(false);
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return QImage();
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const int which = highByte(glyph);
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Q_ASSERT(which < engines.size());
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return engine(which)->alphaMapForGlyph(stripped(glyph));
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}
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QImage QFontEngineMulti::alphaMapForGlyph(glyph_t glyph, QFixed subPixelPosition)
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{
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const int which = highByte(glyph);
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Q_ASSERT(which < engines.size());
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return engine(which)->alphaMapForGlyph(stripped(glyph), subPixelPosition);
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}
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QImage QFontEngineMulti::alphaMapForGlyph(glyph_t glyph, const QTransform &t)
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{
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const int which = highByte(glyph);
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Q_ASSERT(which < engines.size());
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return engine(which)->alphaMapForGlyph(stripped(glyph), t);
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}
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QImage QFontEngineMulti::alphaMapForGlyph(glyph_t glyph, QFixed subPixelPosition, const QTransform &t)
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{
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const int which = highByte(glyph);
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Q_ASSERT(which < engines.size());
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return engine(which)->alphaMapForGlyph(stripped(glyph), subPixelPosition, t);
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}
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QImage QFontEngineMulti::alphaRGBMapForGlyph(glyph_t glyph, QFixed subPixelPosition, int margin, const QTransform &t)
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{
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const int which = highByte(glyph);
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Q_ASSERT(which < engines.size());
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return engine(which)->alphaRGBMapForGlyph(stripped(glyph), subPixelPosition, margin, t);
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}
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QT_END_NAMESPACE
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@ -393,7 +393,7 @@ private:
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int _size;
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};
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class QFontEngineMulti : public QFontEngine
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class Q_GUI_EXPORT QFontEngineMulti : public QFontEngine
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{
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public:
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explicit QFontEngineMulti(int engineCount);
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@ -416,6 +416,10 @@ public:
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virtual QFixed xHeight() const;
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virtual QFixed averageCharWidth() const;
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virtual QImage alphaMapForGlyph(glyph_t);
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virtual QImage alphaMapForGlyph(glyph_t glyph, QFixed subPixelPosition);
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virtual QImage alphaMapForGlyph(glyph_t, const QTransform &t);
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virtual QImage alphaMapForGlyph(glyph_t, QFixed subPixelPosition, const QTransform &t);
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virtual QImage alphaRGBMapForGlyph(glyph_t, QFixed subPixelPosition, int margin, const QTransform &t);
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virtual QFixed lineThickness() const;
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virtual QFixed underlinePosition() const;
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@ -93,7 +93,7 @@ class QAbstractTextDocumentLayout;
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// * negative yoff means the following stuff is drawn higher up.
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// the characters bounding rect is given by QRect(x,y,width,height), its advance by
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// xoo and yoff
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struct glyph_metrics_t
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struct Q_GUI_EXPORT glyph_metrics_t
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{
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inline glyph_metrics_t()
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: x(100000), y(100000) {}
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