KD Chart 2  [rev.2.6]
kdganttabstractrowcontroller.h
Go to the documentation of this file.
1 /****************************************************************************
2 ** Copyright (C) 2001-2019 Klaralvdalens Datakonsult AB. All rights reserved.
3 **
4 ** This file is part of the KD Chart library.
5 **
6 ** Licensees holding valid commercial KD Chart licenses may use this file in
7 ** accordance with the KD Chart Commercial License Agreement provided with
8 ** the Software.
9 **
10 **
11 ** This file may be distributed and/or modified under the terms of the
12 ** GNU General Public License version 2 and version 3 as published by the
13 ** Free Software Foundation and appearing in the file LICENSE.GPL.txt included.
14 **
15 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
16 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
17 **
18 ** Contact info@kdab.com if any conditions of this licensing are not
19 ** clear to you.
20 **
21 **********************************************************************/
22 
23 #ifndef KDGANTTABSTRACTROWCONTROLLER_H
24 #define KDGANTTABSTRACTROWCONTROLLER_H
25 
26 #include <QPair>
27 #include "kdganttglobal.h"
28 
29 QT_BEGIN_NAMESPACE
30 class QModelIndex;
31 QT_END_NAMESPACE
32 
33 namespace KDGantt {
34  class KDGANTT_EXPORT AbstractRowController {
35  public:
37  virtual ~AbstractRowController();
38 
39  virtual int headerHeight() const = 0;
40  virtual int maximumItemHeight() const = 0;
41  virtual int totalHeight() const = 0;
42 
43  virtual bool isRowVisible( const QModelIndex& idx ) const = 0;
44  virtual bool isRowExpanded( const QModelIndex& idx ) const = 0;
45  virtual Span rowGeometry( const QModelIndex& idx ) const = 0;
46 
47 
48  virtual QModelIndex indexAt( int height ) const = 0;
49  virtual QModelIndex indexAbove( const QModelIndex& idx ) const = 0;
50  virtual QModelIndex indexBelow( const QModelIndex& idx ) const = 0;
51  };
52 }
53 
54 #endif /* KDGANTTABSTRACTROWCONTROLLER_H */
55 
A class representing a start point and a length.
Abstract baseclass for row controllers. A row controller is used by the GraphicsView to nagivate the ...

Klarälvdalens Datakonsult AB (KDAB)
Qt-related services and products
http://www.kdab.com/
http://www.kdab.com/products/kd-chart/