/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** 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 QPLATFORMFONTDATABASE_H
#define QPLATFORMFONTDATABASE_H

//
//  W A R N I N G
//  -------------
//
// This file is part of the QPA API and is not meant to be used
// in applications. Usage of this API may make your code
// source and binary incompatible with future versions of Qt.
//

#include <QtCore/qconfig.h>
#include <QtCore/QString>
#include <QtCore/QStringList>
#include <QtCore/QList>
#include <QtCore/QHash>
#include <QtGui/QFontDatabase>
#include <QtGui/private/qfont_p.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE


class QWritingSystemsPrivate;

class Q_GUI_EXPORT QSupportedWritingSystems
{
public:

    QSupportedWritingSystems();
    QSupportedWritingSystems(const QSupportedWritingSystems &other);
    QSupportedWritingSystems &operator=(const QSupportedWritingSystems &other);
    ~QSupportedWritingSystems();

    void setSupported(QFontDatabase::WritingSystem, bool supported = true);
    bool supported(QFontDatabase::WritingSystem) const;

private:
    void detach();

    QWritingSystemsPrivate *d;

    friend Q_GUI_EXPORT bool operator==(const QSupportedWritingSystems &, const QSupportedWritingSystems &);
    friend Q_GUI_EXPORT bool operator!=(const QSupportedWritingSystems &, const QSupportedWritingSystems &);
};

Q_GUI_EXPORT bool operator==(const QSupportedWritingSystems &, const QSupportedWritingSystems &);
Q_GUI_EXPORT bool operator!=(const QSupportedWritingSystems &, const QSupportedWritingSystems &);

class QFontRequestPrivate;
class QFontEngineMulti;

class Q_GUI_EXPORT QPlatformFontDatabase
{
public:
    virtual ~QPlatformFontDatabase();
    virtual void populateFontDatabase();
    virtual QFontEngineMulti *fontEngineMulti(QFontEngine *fontEngine, QUnicodeTables::Script script);
    virtual QFontEngine *fontEngine(const QFontDef &fontDef, QUnicodeTables::Script script, void *handle);
    virtual QStringList fallbacksForFamily(const QString family, const QFont::Style &style, const QFont::StyleHint &styleHint, const QUnicodeTables::Script &script) const;
    virtual QStringList addApplicationFont(const QByteArray &fontData, const QString &fileName);
    virtual void releaseHandle(void *handle);

    virtual QFontEngine *fontEngine(const QByteArray &fontData, qreal pixelSize, QFont::HintingPreference hintingPreference);

    virtual QString fontDir() const;

    virtual QFont defaultFont() const;

    virtual QString resolveFontFamilyAlias(const QString &family) const;
    virtual bool fontsAlwaysScalable() const;
    virtual QList<int> standardSizes() const;

    //callback
    static void registerQPF2Font(const QByteArray &dataArray, void *handle);
    static void registerFont(const QString &familyname, const QString &foundryname, QFont::Weight weight,
                             QFont::Style style, QFont::Stretch stretch, bool antialiased,
                             bool scalable, int pixelSize, bool fixedPitch,
                             const QSupportedWritingSystems &writingSystems, void *handle);
};

QT_END_NAMESPACE

QT_END_HEADER

#endif // QPLATFORMFONTDATABASE_H