serverlistproxymodel.h

//------------------------------------------------------------------------------
// serverlistproxymodel.h
//------------------------------------------------------------------------------
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
// 02110-1301  USA
//
//------------------------------------------------------------------------------
// Copyright (C) 2011 "Zalewa" <zalewapl@gmail.com>
//------------------------------------------------------------------------------
#ifndef __SERVERLISTPROXYMODEL_H__
#define __SERVERLISTPROXYMODEL_H__

#include "dptr.h"
#include "serverapi/serverptr.h"
#include <QSortFilterProxyModel>

class ServerListFilterInfo;
class ServerList;
class Server;

class ColumnSort
{
public:
        static ColumnSort deserializeQVariant(const QVariant &v);

        ColumnSort();
        ColumnSort(int columnId, Qt::SortOrder order);

        int columnId() const;
        bool isValid() const;
        Qt::SortOrder order() const;

        bool operator==(const ColumnSort &other) const;

        QVariant serializeQVariant() const;

private:
        int columnId_;
        Qt::SortOrder order_;
};


class ServerListProxyModel : public QSortFilterProxyModel
{
        Q_OBJECT

public:
        ServerListProxyModel(ServerList *serverListHandler);
        ~ServerListProxyModel() override;

        void addAdditionalColumnSorting(int column, Qt::SortOrder order);
        const QList<ColumnSort> &additionalSortColumns() const;
        void clearAdditionalSorting();
        const ServerListFilterInfo &filterInfo() const;

        bool isAnyColumnSortedAdditionally() const;
        bool isSortingAdditionallyByColumn(int column) const;

        void removeAdditionalColumnSorting(int column);
        void setAdditionalSortColumns(const QList<ColumnSort> &columns);
        void setFilterInfo(const ServerListFilterInfo &filterInfo);
        void setGroupServersWithPlayersAtTop(bool b);

        void sortServers(int column, Qt::SortOrder order = Qt::AscendingOrder);

signals:
        void additionalSortColumnsChanged();

protected:
        bool filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const override;

private:
        DPtr<ServerListProxyModel> d;

        int compareColumnSortData(QVariant &var1, QVariant &var2, int column) const;
        bool lessThan(const QModelIndex &left, const QModelIndex &right) const override;

        ServerPtr serverFromList(const QModelIndex &index) const;
        ServerPtr serverFromList(int row) const;
};

#endif