Subversion Repositories public iLand

/********************************************************************************************

**    iLand - an individual based forest landscape and disturbance model

**    http://iland.boku.ac.at

**    Copyright (C) 2009-  Werner Rammer, Rupert Seidl

**

**    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 3 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, see <http://www.gnu.org/licenses/>.

********************************************************************************************/

#ifndef SNAPSHOT_H

#define SNAPSHOT_H

#include <QString>

#include <QHash>

/** @class Snapshot provides a way to save/load the current state of the model to a database.

 *  A snapshot contains trees, saplings, snags and soil (carbon/nitrogen pools), i.e. a

 *   snapshot allows to replicate all state variables of a landscape system.

  */

class ResourceUnit; // forward

class MapGrid; // forward

class Snapshot

{

public:

    Snapshot();

    bool createSnapshot(const QString &file_name);

    bool loadSnapshot(const QString &file_name);

    // snapshot functions for single stands

    /// save the trees/saplings from a single stand (given by 'stand_id' and 'stand_grid' to a database in 'file_name'

    bool saveStandSnapshot(const int stand_id, const MapGrid *stand_grid, const QString &file_name);

    /// load the trees/saplings from a single stand (given by 'stand_id' and 'stand_grid' from a database in 'file_name'

    bool loadStandSnapshot(const int stand_id, const MapGrid *stand_grid, const QString &file_name);

private:

    bool openDatabase(const QString &file_name, const bool read);

    bool openStandDatabase(const QString &file_name, bool read);

    void saveTrees();

    void saveSoil();

    void saveSnags();

    void saveSaplings();

    void loadTrees();

    void loadSoil();

    void loadSnags();

    void loadSaplings();

    void loadSaplingsOld();

    QHash<int, ResourceUnit* > mRUHash;

};

#endif // SNAPSHOT_H