TableModel.h

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/***************************************************************************
    File                 : TableModel.h
    Project              : SciDAVis
    Description          : Model for the access to a Table
    --------------------------------------------------------------------
    Copyright            : (C) 2007 Tilman Benkert (thzs*gmx.net)
                           (replace * with @ in the email addresses) 

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

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

#ifndef TABLEMODEL_H
#define TABLEMODEL_H

#include <QAbstractItemModel>
#include <QList>
#include <QStringList>
#include "core/AbstractFilter.h"
#include <QColor>

class Column;
namespace future{ class Table; }


class TableModel : public QAbstractItemModel
{
    Q_OBJECT

    public:
        explicit TableModel(future::Table * table);
        ~TableModel();

        enum CustomDataRole {
            MaskingRole = Qt::UserRole, 
            FormulaRole = Qt::UserRole+1, 
            CommentRole = Qt::UserRole+2, 
        };


        Qt::ItemFlags flags( const QModelIndex & index ) const;
        QVariant data(const QModelIndex &index, int role) const;
        QVariant headerData(int section, 
                Qt::Orientation orientation,int role) const;
        int rowCount(const QModelIndex &parent = QModelIndex()) const;
        int columnCount(const QModelIndex & parent = QModelIndex()) const;
        bool setData(const QModelIndex & index, const QVariant & value, int role);
        QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const;
        QModelIndex parent(const QModelIndex & child) const;

#ifdef LEGACY_CODE_0_2_x
        bool isReadOnly() const { return d_read_only; }
        void setReadOnly(bool read_only) { d_read_only =  read_only; }
#endif

        Column * column(int index); // this is needed for the comment header view

        void activateFormulaMode(bool on) { d_formula_mode = on; }
        bool formulaModeActive() const { return d_formula_mode; }

    private slots:

        void handleColumnsAboutToBeInserted(int, QList<Column*>);
        void handleColumnsInserted(int first, int count);
        void handleColumnsAboutToBeRemoved(int first, int count);
        void handleColumnsRemoved(int first, int count);
        void handleRowsAboutToBeInserted(int before, int count);
        void handleRowsInserted(int first, int count);
        void handleRowsAboutToBeRemoved(int first, int count);
        void handleRowsRemoved(int first, int count);
        void handleDataChanged(int top, int left, int bottom, int right);

    private:
        future::Table * d_table;

#ifdef LEGACY_CODE_0_2_x
        bool d_read_only;
#endif

        bool d_formula_mode;
}; 

#endif