/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
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** conditions see http://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/contact-us.
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** GNU Lesser General Public License Usage
** Alternatively, 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
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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** 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
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****************************************************************************/

#ifndef QFONTSUBSET_P_H
#define QFONTSUBSET_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 "private/qfontengine_p.h"

QT_BEGIN_NAMESPACE

class QFontSubset
{
public:
    explicit QFontSubset(QFontEngine *fe, int obj_id = 0)
        : object_id(obj_id), noEmbed(false), fontEngine(fe), downloaded_glyphs(0), standard_font(false)
    {
        fontEngine->ref.ref();
#ifndef QT_NO_PDF
        addGlyph(0);
#endif
    }
    ~QFontSubset() {
        if (!fontEngine->ref.deref())
            delete fontEngine;
    }

    QByteArray toTruetype() const;
#ifndef QT_NO_PDF
    QByteArray widthArray() const;
    QByteArray createToUnicodeMap() const;
    QVector<int> getReverseMap() const;
    QByteArray glyphName(unsigned int glyph, const QVector<int> &reverseMap) const;

    static QByteArray glyphName(unsigned short unicode, bool symbol);

    int addGlyph(int index);
#endif
    const int object_id;
    bool noEmbed;
    QFontEngine *fontEngine;
    QList<int> glyph_indices;
    mutable int downloaded_glyphs;
    mutable bool standard_font;
    int nGlyphs() const { return glyph_indices.size(); }
    mutable QFixed emSquare;
    mutable QVector<QFixed> widths;
};

QT_END_NAMESPACE

#endif // QFONTSUBSET_P_H