#include "ThemeModel.h"

ThemeModel::ThemeModel(QObject *parent) :

    QAbstractListModel(parent)

{

    m_data = QList<QMap<int, QVariant> >();

}

int ThemeModel::rowCount(const QModelIndex &parent) const

{

    if(parent.isValid())

        return 0;

    else

        return m_data.size();

}

QVariant ThemeModel::data(const QModelIndex &index, int role) const

{

    if(index.column() > 0 || index.row() >= m_data.size())

        return QVariant();

    else

        return m_data.at(index.row()).value(role);

}

void ThemeModel::loadThemes()

{

    beginResetModel();

    DataManager & datamgr = DataManager::instance();

    QStringList themes =

        datamgr.entryList("Themes", QDir::AllDirs | QDir::NoDotAndDotDot);

    m_data.clear();

#if QT_VERSION >= QT_VERSION_CHECK(4, 7, 0)

    m_data.reserve(themes.size());

#endif

    foreach (QString theme, themes)

    {

        // themes without icon are supposed to be hidden

        QString iconpath =

            datamgr.findFileForRead(QString("Themes/%1/icon.png").arg(theme));

        if (!QFile::exists(iconpath))

            continue;

        QMap<int, QVariant> dataset;

        // set name

        dataset.insert(Qt::DisplayRole, theme);

        // load and set icon

        QIcon icon(iconpath);

        dataset.insert(Qt::DecorationRole, icon);

        // load and set preview icon

        QIcon preview(datamgr.findFileForRead(QString("Themes/%1/icon@2x.png").arg(theme)));

        dataset.insert(Qt::UserRole, preview);

        m_data.append(dataset);

    }

    endResetModel();

}