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foldermodel.cpp Example File
messagenavigator/foldermodel.cpp

    /****************************************************************************
    **
    ** This file is part of the Qt Extended Opensource Package.
    **
    ** Copyright (C) 2009 Trolltech ASA.
    **
    ** $QT_EXTENDED_DUAL_LICENSE$
    **
    ****************************************************************************/

    #include "foldermodel.h"
    #include <QIcon>
    #include <QMailStore>
    #include <QMailAccountMessageSet>

    FolderModel::FolderModel(QObject *parent)
        : QMailMessageSetModel(parent)
    {
        // Add an entry for each account, that will maintain its own tree of folders
        foreach (const QMailAccountId &id, QMailStore::instance()->queryAccounts())
            append(new QMailAccountMessageSet(this, id, true));
    }

    FolderModel::~FolderModel()
    {
    }

    QVariant FolderModel::data(QMailMessageSet* item, int role, int column) const
    {
        if (role == Qt::DecorationRole) {
            if (qobject_cast<QMailAccountMessageSet*>(item)) {
                // This item is an account message set
                return QIcon(":icon/qtmail/account");
            } else {
                // This item is a folder message set
                return QIcon(":icon/folder");
            }
        } else {
            return QMailMessageSetModel::data(item, role, column);
        }
    }
    // end-data