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/****************************************************************************
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**
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** Copyright (C) 2012 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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** GNU Lesser General Public License Usage
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** This file may be used under the terms of the GNU Lesser General Public
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** License version 2.1 as published by the Free Software Foundation and
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** appearing in the file LICENSE.LGPL included in the packaging of this
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** file. Please review the following information to ensure the GNU Lesser
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** General Public License version 2.1 requirements will be met:
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** 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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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU General
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** Public License version 3.0 as published by the Free Software Foundation
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** and appearing in the file LICENSE.GPL included in the packaging of this
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** file. Please review the following information to ensure the GNU General
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** Public License version 3.0 requirements will be met:
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** http://www.gnu.org/copyleft/gpl.html.
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**
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** Other Usage
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** Alternatively, this file may be used in accordance with the terms and
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** conditions contained in a signed written agreement between you and Nokia.
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QFONTENGINE_CORETEXT_P_H
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#define QFONTENGINE_CORETEXT_P_H
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#include <private/qfontengine_p.h>
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#ifdef QT_NO_CORESERVICES
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#include <CoreText/CoreText.h>
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#include <CoreGraphics/CoreGraphics.h>
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#include <private/qcore_mac_p.h>
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#endif
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#if !defined(Q_WS_MAC) || (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5)
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QT_BEGIN_HEADER
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QT_BEGIN_NAMESPACE
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class QRawFontPrivate;
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class QCoreTextFontEngineMulti;
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class QCoreTextFontEngine : public QFontEngine
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{
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public:
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    QCoreTextFontEngine(CTFontRef font, const QFontDef &def);
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    QCoreTextFontEngine(CGFontRef font, const QFontDef &def);
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    ~QCoreTextFontEngine();
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    virtual bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, QTextEngine::ShaperFlags flags) const;
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    virtual void recalcAdvances(QGlyphLayout *, QTextEngine::ShaperFlags) const;
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    virtual glyph_metrics_t boundingBox(const QGlyphLayout &glyphs);
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    virtual glyph_metrics_t boundingBox(glyph_t glyph);
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    virtual QFixed ascent() const;
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    virtual QFixed descent() const;
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    virtual QFixed leading() const;
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    virtual QFixed xHeight() const;
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    virtual qreal maxCharWidth() const;
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    virtual QFixed averageCharWidth() const;
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    virtual void addGlyphsToPath(glyph_t *glyphs, QFixedPoint *positions, int numGlyphs,
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                                 QPainterPath *path, QTextItem::RenderFlags);
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    virtual const char *name() const { return "QCoreTextFontEngine"; }
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    virtual bool canRender(const QChar *string, int len);
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    virtual int synthesized() const { return synthesisFlags; }
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    virtual bool supportsSubPixelPositions() const { return true; }
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    virtual Type type() const { return QFontEngine::Mac; }
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    void draw(CGContextRef ctx, qreal x, qreal y, const QTextItemInt &ti, int paintDeviceHeight);
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    virtual FaceId faceId() const;
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    virtual bool getSfntTableData(uint /*tag*/, uchar * /*buffer*/, uint * /*length*/) const;
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    virtual void getUnscaledGlyph(glyph_t glyph, QPainterPath *path, glyph_metrics_t *metrics);
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    virtual QImage alphaMapForGlyph(glyph_t, QFixed subPixelPosition);
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    virtual QImage alphaRGBMapForGlyph(glyph_t, QFixed subPixelPosition, int margin, const QTransform &t);
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    virtual qreal minRightBearing() const;
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    virtual qreal minLeftBearing() const;
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    virtual QFixed emSquareSize() const;
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    virtual QFontEngine *cloneWithSize(qreal pixelSize) const;
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private:
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    friend class QRawFontPrivate;
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    void init();
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    QImage imageForGlyph(glyph_t glyph, QFixed subPixelPosition, int margin, bool colorful);
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    CTFontRef ctfont;
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    CGFontRef cgFont;
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    int synthesisFlags;
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    CGAffineTransform transform;
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    QFixed avgCharWidth;
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    friend class QCoreTextFontEngineMulti;
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};
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class QCoreTextFontEngineMulti : public QFontEngineMulti
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{
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public:
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    QCoreTextFontEngineMulti(const QCFString &name, const QFontDef &fontDef, bool kerning);
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    QCoreTextFontEngineMulti(CTFontRef ctFontRef, const QFontDef &fontDef, bool kerning);
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    ~QCoreTextFontEngineMulti();
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    virtual bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs,
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                              QTextEngine::ShaperFlags flags) const;
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    bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs,
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                      QTextEngine::ShaperFlags flags,
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                      unsigned short *logClusters, const HB_CharAttributes *charAttributes,
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                      QScriptItem *si) const;
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    virtual const char *name() const { return "CoreText"; }
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    inline CTFontRef macFontID() const { return ctfont; }
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protected:
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    virtual void loadEngine(int at);
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private:
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    void init(bool kerning);
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    inline const QCoreTextFontEngine *engineAt(int i) const
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    { return static_cast<const QCoreTextFontEngine *>(engines.at(i)); }
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    uint fontIndexForFont(CTFontRef font) const;
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    CTFontRef ctfont;
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    mutable QCFType<CFMutableDictionaryRef> attributeDict;
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    CGAffineTransform transform;
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    friend class QFontDialogPrivate;
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    bool transformAdvances;
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};
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CGAffineTransform qt_transform_from_fontdef(const QFontDef &fontDef);
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QT_END_NAMESPACE
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QT_END_HEADER
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#endif// !defined(Q_WS_MAC) || (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5)
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#endif // QFONTENGINE_CORETEXT_P_H