/****************************************************************************

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****************************************************************************/

#ifndef QABSTRACTFONTENGINE_P_H

#define QABSTRACTFONTENGINE_P_H

//

//  W A R N I N G

//  -------------

//

// This file is not part of the Qt API.  It exists purely as an

// implementation detail.  This header file may change from version to

// version without notice, or even be removed.

//

// We mean it.

//

#include "qfontengine_p.h"

#include "qabstractfontengine_qws.h"

QT_BEGIN_NAMESPACE

class QCustomFontEngine;

class QProxyFontEngine : public QFontEngine

{

    Q_OBJECT

public:

    QProxyFontEngine(QAbstractFontEngine *engine, const QFontDef &def);

    virtual ~QProxyFontEngine();

    virtual bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, QTextEngine::ShaperFlags flags) const;

    virtual void recalcAdvances(QGlyphLayout *, QTextEngine::ShaperFlags) const;

    virtual QImage alphaMapForGlyph(glyph_t);

    virtual void addGlyphsToPath(glyph_t *glyphs, QFixedPoint *positions, int nglyphs, QPainterPath *path, QTextItem::RenderFlags flags);

    virtual glyph_metrics_t boundingBox(const QGlyphLayout &glyphs);

    virtual glyph_metrics_t boundingBox(glyph_t glyph);

    virtual QFixed ascent() const;

    virtual QFixed descent() const;

    virtual QFixed leading() const;

    virtual QFixed xHeight() const;

    virtual QFixed averageCharWidth() const;

    virtual QFixed lineThickness() const;

    virtual QFixed underlinePosition() const;

    virtual qreal maxCharWidth() const;

    virtual qreal minLeftBearing() const;

    virtual qreal minRightBearing() const;

    virtual int glyphCount() const;

    virtual bool canRender(const QChar *string, int len);

    virtual Type type() const { return Proxy; }

    virtual const char *name() const { return "proxy engine"; }

#if !defined(Q_WS_X11) && !defined(Q_WS_WIN) && !defined(Q_WS_MAC) && !defined(Q_OS_SYMBIAN)

    virtual void draw(QPaintEngine *, qreal, qreal, const QTextItemInt &);

#endif

    inline QAbstractFontEngine::Capabilities capabilities() const

    { return engineCapabilities; }

    bool drawAsOutline() const;

private:

    QAbstractFontEngine *engine;

    QAbstractFontEngine::Capabilities engineCapabilities;

};

QT_END_NAMESPACE

#endif