/****************************************************************************
**
** Copyright (C) 2012 BogDan Vatra <bogdan@kde.org>
** Contact: http://www.qt.io/licensing/
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
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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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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**
** As a special exception, The Qt Company gives you certain additional
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****************************************************************************/

#include <QDir>

#include "qandroidplatformfontdatabase.h"

QT_BEGIN_NAMESPACE

QString QAndroidPlatformFontDatabase::fontDir() const
{
    return QLatin1String("/system/fonts");
}

void QAndroidPlatformFontDatabase::populateFontDatabase()
{
    QString fontpath = fontDir();

    if (!QFile::exists(fontpath)) {
        qFatal("QFontDatabase: Cannot find font directory %s - is Qt installed correctly?",
               qPrintable(fontpath));
    }

    QDir dir(fontpath, QLatin1String("*.ttf"));
    for (int i = 0; i < int(dir.count()); ++i) {
        const QByteArray file = QFile::encodeName(dir.absoluteFilePath(dir[i]));

        QSupportedWritingSystems supportedWritingSystems;
        QStringList families = addTTFile(QByteArray(), file, &supportedWritingSystems);

        extern int qt_script_for_writing_system(QFontDatabase::WritingSystem writingSystem);
        for (int i = 0; i < QFontDatabase::WritingSystemsCount; ++i) {
            if (i == QFontDatabase::Any || supportedWritingSystems.supported(QFontDatabase::WritingSystem(i))) {
                QChar::Script script = QChar::Script(qt_script_for_writing_system(QFontDatabase::WritingSystem(i)));
                m_fallbacks[script] += families;
            }
        }
    }
}

QStringList QAndroidPlatformFontDatabase::fallbacksForFamily(const QString &family,
                                                             QFont::Style style,
                                                             QFont::StyleHint styleHint,
                                                             QChar::Script script) const
{
    Q_UNUSED(family);
    Q_UNUSED(style);

    if (styleHint == QFont::Monospace || styleHint == QFont::Courier)
        return QString(qgetenv("QT_ANDROID_FONTS_MONOSPACE")).split(";") + m_fallbacks[script];
    else if (styleHint == QFont::Serif)
        return QString(qgetenv("QT_ANDROID_FONTS_SERIF")).split(";") + m_fallbacks[script];

    return QString(qgetenv("QT_ANDROID_FONTS")).split(";") + m_fallbacks[script];
}

QT_END_NAMESPACE