# KDChartDiagramObserver.h

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    00001 /****************************************************************************
    00002  ** Copyright (C) 2001-2006 Klarälvdalens Datakonsult AB.  All rights reserved.
    00003  **
    00004  ** This file is part of the KD Chart library.
    00005  **
    00006  ** This file may be distributed and/or modified under the terms of the
    00007  ** GNU General Public License version 2 as published by the Free Software
    00008  ** Foundation and appearing in the file LICENSE.GPL included in the
    00009  ** packaging of this file.
    00010  **
    00011  ** Licensees holding valid commercial KD Chart licenses may use this file in
    00012  ** accordance with the KD Chart Commercial License Agreement provided with
    00013  ** the Software.
    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  ** See http://www.kdab.net/kdchart for
    00019  **   information about KD Chart Commercial License Agreements.
    00020  **
    00021  ** Contact info@kdab.net if any conditions of this
    00022  ** licensing are not clear to you.
    00023  **
    00024  **********************************************************************/
    00025 #ifndef __KDCHARTDIAGRAMOBSERVER_H_
    00026 #define __KDCHARTDIAGRAMOBSERVER_H_
    00027
    00028 #include "KDChartGlobal.h"
    00029
    00030 #include <QObject>
    00031 #include <QPointer>
    00032 #include <QModelIndex>
    00033
    00034 class QAbstractItemModel;
    00035
    00036 namespace KDChart {
    00037
    00038     class AbstractDiagram;
    00039
    00044     class KDCHART_EXPORT DiagramObserver : public QObject
    00045     {
    00046         Q_OBJECT
    00047     public:
    00051         explicit DiagramObserver( AbstractDiagram * diagram, QObject* parent = 0 );
    00052         ~DiagramObserver();
    00053
    00054         const AbstractDiagram* diagram() const;
    00055         AbstractDiagram* diagram();
    00056
    00057     Q_SIGNALS:
    00060         void diagramDestroyed( AbstractDiagram* diagram );
    00062         void diagramDataChanged( AbstractDiagram* diagram );
    00064         void diagramDataHidden( AbstractDiagram* diagram );
    00066         void diagramAttributesChanged( AbstractDiagram* diagram );
    00067
    00068     private Q_SLOTS:
    00069         void slotDestroyed(QObject*);
    00070         void slotHeaderDataChanged(Qt::Orientation,int,int);
    00071         void slotDataChanged(QModelIndex,QModelIndex);
    00072         void slotDataChanged();
    00073         void slotDataHidden();
    00074         void slotAttributesChanged();
    00075         void slotAttributesChanged(QModelIndex,QModelIndex);
    00076         void slotModelsChanged();
    00077
    00078     private:
    00079         void init();
    00080
    00081         AbstractDiagram*    m_diagram;
    00082         QPointer<QAbstractItemModel> m_model;
    00083         QPointer<QAbstractItemModel> m_attributesmodel;
    00084    };
    00085 }
    00086
    00087 #endif // KDChartDiagramObserver_H