TableDoubleHeaderView.h

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/***************************************************************************
    File                 : TableDoubleHeaderView.h
    Project              : SciDAVis
    --------------------------------------------------------------------
    Copyright            : (C) 2007 by Tilman Benkert,
    Email (use @ for *)  : thzs*gmx.net
    Description          : Horizontal header for TableView displaying comments in a second header

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

/***************************************************************************
 *                                                                         *
 *  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 TABLEDOUBLEHEADERVIEW_H
#define TABLEDOUBLEHEADERVIEW_H

#include <QHeaderView>
#include "TableModel.h"


class TableCommentsHeaderView : public QHeaderView
{
    Q_OBJECT

    public:
        TableCommentsHeaderView(QWidget *parent = 0);
        virtual ~TableCommentsHeaderView();

    virtual void setModel(QAbstractItemModel * model);

    friend class TableDoubleHeaderView; // access to paintSection (protected)
};

/*
 * This class is only to be used by TableView.
 * It allows for displaying two horizontal headers.
 * A TableDoubleHeaderView displays the column name, plot designation, and
 * type icon in a normal QHeaderView and below that a second header
 * which displays the column comments. 
 * 
 * \sa TableCommentsHeaderView
 * \sa QHeaderView
 */
class TableDoubleHeaderView : public QHeaderView
{
    Q_OBJECT

    private:
        TableCommentsHeaderView * d_slave;

    public:
        TableDoubleHeaderView(QWidget * parent = 0);
        ~TableDoubleHeaderView();

        virtual void setModel(QAbstractItemModel * model);
        virtual QSize sizeHint () const;
        void showComments(bool on = true);
        bool areCommentsShown() const;

    public slots:
        // adjust geometry and repaint header 
        void refresh();
        // React to a header data change
        void headerDataChanged(Qt::Orientation orientation, int logicalFirst, int logicalLast);

    protected slots:
        void sectionsInserted(const QModelIndex & parent, int logicalFirst, int logicalLast);

    protected:
        virtual void paintSection(QPainter * painter, const QRect & rect, int logicalIndex) const;
    
        bool d_show_comments;
};




#endif // #ifndef TABLEDOUBLEHEADERVIEW_H