serverlistproxymodel.h

//------------------------------------------------------------------------------
// serverlistproxymodel.h
//------------------------------------------------------------------------------
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; 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 "serverapi/serverptr.h"
#include "dptr.h"
#include <QSortFilterProxyModel>

class ServerListFilterInfo;
class ServerListHandler;
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(ServerListHandler* serverListHandler);
                ~ServerListProxyModel();

                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;

        private:
                DPtr<ServerListProxyModel> d;

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

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

#endif