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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (info@qt.nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QWINDOWSFONTENGINEDIRECTWRITE_H
+#define QWINDOWSFONTENGINEDIRECTWRITE_H
+
+#ifndef QT_NO_DIRECTWRITE
+
+// Enable access to HB_Face in harfbuzz includes included by qfontengine_p.h.
+#define QT_BUILD_GUI_LIB
+#include <QtGui/private/qfontengine_p.h>
+#undef QT_BUILD_GUI_LIB
+
+#include <QtCore/QSharedPointer>
+
+class QWindowsFontEngineData;
+
+struct IDWriteFont ;
+struct IDWriteFontFace ;
+struct IDWriteFactory ;
+struct IDWriteBitmapRenderTarget ;
+struct IDWriteGdiInterop ;
+
+QT_BEGIN_NAMESPACE
+
+class QWindowsFontEngineDirectWrite : public QFontEngine
+{
+ Q_OBJECT
+public:
+ explicit QWindowsFontEngineDirectWrite(IDWriteFontFace *directWriteFontFace,
+ qreal pixelSize,
+ const QSharedPointer<QWindowsFontEngineData> &d);
+ ~QWindowsFontEngineDirectWrite();
+
+ void initFontInfo(const QFontDef &request, int dpi, IDWriteFont *font);
+
+ QFixed lineThickness() const;
+ bool getSfntTableData(uint tag, uchar *buffer, uint *length) const;
+ QFixed emSquareSize() const;
+
+ bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, QTextEngine::ShaperFlags flags) const;
+ void recalcAdvances(QGlyphLayout *glyphs, QTextEngine::ShaperFlags) const;
+
+ void addGlyphsToPath(glyph_t *glyphs, QFixedPoint *positions, int nglyphs,
+ QPainterPath *path, QTextItem::RenderFlags flags);
+
+ glyph_metrics_t boundingBox(const QGlyphLayout &glyphs);
+ glyph_metrics_t boundingBox(glyph_t g);
+
+ QFixed ascent() const;
+ QFixed descent() const;
+ QFixed leading() const;
+ QFixed xHeight() const;
+ qreal maxCharWidth() const;
+
+ const char *name() const;
+
+ bool supportsSubPixelPositions() const;
+
+ QImage alphaMapForGlyph(glyph_t glyph, QFixed subPixelPosition);
+ QImage alphaRGBMapForGlyph(glyph_t t, QFixed subPixelPosition, int margin,
+ const QTransform &xform);
+
+ QFontEngine *cloneWithSize(qreal pixelSize) const;
+
+ bool canRender(const QChar *string, int len);
+ Type type() const;
+
+ static QString fontNameSubstitute(const QString &familyName);
+
+private:
+ friend class QRawFontPrivate;
+
+ QImage imageForGlyph(glyph_t t, QFixed subPixelPosition, int margin, const QTransform &xform);
+ void collectMetrics();
+
+ const QSharedPointer<QWindowsFontEngineData> m_fontEngineData;
+
+ IDWriteFontFace *m_directWriteFontFace;
+ IDWriteBitmapRenderTarget *m_directWriteBitmapRenderTarget;
+
+ QFixed m_lineThickness;
+ int m_unitsPerEm;
+ QFixed m_ascent;
+ QFixed m_descent;
+ QFixed m_xHeight;
+ QFixed m_lineGap;
+ FaceId m_faceId;
+};
+
+QT_END_NAMESPACE
+
+#endif // QT_NO_DIRECTWRITE
+
+#endif // QWINDOWSFONTENGINEDIRECTWRITE_H