kdganttabstractrowcontroller.h

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00001 /****************************************************************************
00002 ** Copyright (C) 2001-2011 Klaralvdalens Datakonsult AB.  All rights reserved.
00003 **
00004 ** This file is part of the KD Chart library.
00005 **
00006 ** Licensees holding valid commercial KD Chart licenses may use this file in
00007 ** accordance with the KD Chart Commercial License Agreement provided with
00008 ** the Software.
00009 **
00010 **
00011 ** This file may be distributed and/or modified under the terms of the
00012 ** GNU General Public License version 2 and version 3 as published by the
00013 ** Free Software Foundation and appearing in the file LICENSE.GPL.txt included.
00014 **
00015 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
00016 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
00017 **
00018 ** Contact info@kdab.com if any conditions of this licensing are not
00019 ** clear to you.
00020 **
00021 **********************************************************************/
00022 
00023 #ifndef KDGANTTABSTRACTROWCONTROLLER_H
00024 #define KDGANTTABSTRACTROWCONTROLLER_H
00025 
00026 #include <QPair>
00027 #include "kdganttglobal.h"
00028 
00029 class QModelIndex;
00030 
00031 namespace KDGantt {
00032     class KDCHART_EXPORT AbstractRowController {
00033     public:
00034         AbstractRowController();
00035         virtual ~AbstractRowController();
00036 
00037         virtual int headerHeight() const = 0;
00038         virtual int maximumItemHeight() const = 0;
00039         virtual int totalHeight() const = 0;
00040 
00041         virtual bool isRowVisible( const QModelIndex& idx ) const = 0;
00042         virtual bool isRowExpanded( const QModelIndex& idx ) const = 0;
00043         virtual Span rowGeometry( const QModelIndex& idx ) const = 0;
00044 
00045 
00046         virtual QModelIndex indexAt( int height ) const = 0;
00047         virtual QModelIndex indexAbove( const QModelIndex& idx ) const = 0;
00048         virtual QModelIndex indexBelow( const QModelIndex& idx ) const = 0;
00049     };
00050 }
00051 
00052 #endif /* KDGANTTABSTRACTROWCONTROLLER_H */
00053