kdganttabstractrowcontroller.h

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/****************************************************************************
** Copyright (C) 2001-2012 Klaralvdalens Datakonsult AB.  All rights reserved.
**
** This file is part of the KD Chart library.
**
** Licensees holding valid commercial KD Chart licenses may use this file in
** accordance with the KD Chart Commercial License Agreement provided with
** the Software.
**
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 and version 3 as published by the
** Free Software Foundation and appearing in the file LICENSE.GPL.txt included.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** Contact info@kdab.com if any conditions of this licensing are not
** clear to you.
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**********************************************************************/

#ifndef KDGANTTABSTRACTROWCONTROLLER_H
#define KDGANTTABSTRACTROWCONTROLLER_H

#include <QPair>
#include "kdganttglobal.h"

class QModelIndex;

namespace KDGantt {
    class KDGANTT_EXPORT AbstractRowController {
    public:
        AbstractRowController();
        virtual ~AbstractRowController();

        virtual int headerHeight() const = 0;
        virtual int maximumItemHeight() const = 0;
        virtual int totalHeight() const = 0;

        virtual bool isRowVisible( const QModelIndex& idx ) const = 0;
        virtual bool isRowExpanded( const QModelIndex& idx ) const = 0;
        virtual Span rowGeometry( const QModelIndex& idx ) const = 0;


        virtual QModelIndex indexAt( int height ) const = 0;
        virtual QModelIndex indexAbove( const QModelIndex& idx ) const = 0;
        virtual QModelIndex indexBelow( const QModelIndex& idx ) const = 0;
    };
}

#endif /* KDGANTTABSTRACTROWCONTROLLER_H */