/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the QtGui module of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#ifndef QFONTENGINE_S60_P_H+
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#define QFONTENGINE_S60_P_H+
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+
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//+
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//  W A R N I N G+
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//  -------------+
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//+
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// This file is not part of the Qt API.  It exists purely as an+
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// implementation detail.  This header file may change from version to+
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// version without notice, or even be removed.+
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//+
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// We mean it.+
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//+
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+
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#include "qconfig.h"+
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#include "qfontengine_p.h"+
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#include "qsize.h"+
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#include <openfont.h>+
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+
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class CFont;+
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+
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QT_BEGIN_NAMESPACE+
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+
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// ..gives us access to truetype tables, UTF-16<->GlyphID mapping, and glyph outlines+
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class QFontEngineS60Extensions+
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{+
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public:+
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    QFontEngineS60Extensions(CFont* fontOwner, COpenFont *font);+
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+
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    QByteArray getSfntTable(uint tag) const;+
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    const unsigned char *cmap() const;+
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    QPainterPath glyphOutline(glyph_t glyph) const;+
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    CFont *fontOwner() const;+
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+
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private:+
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    COpenFont *m_font;+
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    const MOpenFontShapingExtension *m_shapingExtension;+
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    mutable MOpenFontTrueTypeExtension *m_trueTypeExtension;+
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    mutable const unsigned char *m_cmap;+
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    mutable bool m_symbolCMap;+
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    mutable QByteArray m_cmapTable;+
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    CFont* m_fontOwner;+
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};+
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+
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class QFontEngineS60 : public QFontEngine+
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{+
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public:+
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    QFontEngineS60(const QFontDef &fontDef, const QFontEngineS60Extensions *extensions);+
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    ~QFontEngineS60();+
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+
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    bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, QTextEngine::ShaperFlags flags) const;+
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    void recalcAdvances(QGlyphLayout *glyphs, QTextEngine::ShaperFlags flags) const;+
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+
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    QImage alphaMapForGlyph(glyph_t glyph);+
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+
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    glyph_metrics_t boundingBox(const QGlyphLayout &glyphs);+
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    glyph_metrics_t boundingBox_const(glyph_t glyph) const; // Const correctnes quirk.+
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    glyph_metrics_t boundingBox(glyph_t glyph);+
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+
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    QFixed ascent() const;+
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    QFixed descent() const;+
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    QFixed leading() const;+
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    qreal maxCharWidth() const;+
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    qreal minLeftBearing() const { return 0; }+
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    qreal minRightBearing() const { return 0; }+
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+
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    QByteArray getSfntTable(uint tag) const;+
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+
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    static qreal pixelsToPoints(qreal pixels, Qt::Orientation orientation = Qt::Horizontal);+
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    static qreal pointsToPixels(qreal points, Qt::Orientation orientation = Qt::Horizontal);+
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+
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    const char *name() const;+
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+
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    bool canRender(const QChar *string, int len);+
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+
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    Type type() const;+
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+
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    void getCharacterData(glyph_t glyph, TOpenFontCharMetrics& metrics, const TUint8*& bitmap, TSize& bitmapSize) const;+
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    void setFontScale(qreal scale);+
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+
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private:+
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    friend class QFontPrivate;+
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+
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    QFixed glyphAdvance(HB_Glyph glyph) const;+
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    CFont *fontWithSize(qreal size) const;+
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    static void releaseFont(CFont *&font);+
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+
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    const QFontEngineS60Extensions *m_extensions;+
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    CFont* m_originalFont;+
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    const qreal m_originalFontSizeInPixels;+
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    CFont* m_scaledFont;+
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    qreal m_scaledFontSizeInPixels;+
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    CFont* m_activeFont;+
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};+
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+
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class QFontEngineMultiS60 : public QFontEngineMulti+
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{+
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public:+
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    QFontEngineMultiS60(QFontEngine *first, int script, const QStringList &fallbackFamilies);+
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    void loadEngine(int at);+
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+
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    int m_script;+
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    QStringList m_fallbackFamilies;+
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};+
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+
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QT_END_NAMESPACE+
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+
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#endif // QFONTENGINE_S60_P_H+
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