kdganttconstraintgraphicsitem.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 Gantt 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 Gantt licenses may use this file in
00012  ** accordance with the KD Gantt 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/kdgantt for
00019  **   information about KD Gantt 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 KDGANTTCONSTRAINTGRAPHICSITEM_H
00026 #define KDGANTTCONSTRAINTGRAPHICSITEM_H
00027 
00028 #include <QGraphicsItem>
00029 
00030 #include "kdganttconstraint.h"
00031 
00032 namespace KDGantt {
00033     class GraphicsScene;
00034 
00035     class KDCHART_EXPORT ConstraintGraphicsItem : public QGraphicsItem {
00036     public:
00037         enum { Type = UserType + 43 };
00038 
00039         explicit ConstraintGraphicsItem( const Constraint& c,
00040                                          QGraphicsItem* parent = 0, GraphicsScene* scene = 0 );
00041         virtual ~ConstraintGraphicsItem();
00042 
00043         /*reimp*/ int type() const;
00044         /*reimp (non virtual)*/GraphicsScene* scene() const;
00045 
00046         /*reimp*/ QString ganttToolTip() const;
00047 
00048         /*reimp*/ QRectF boundingRect() const;
00049         /*reimp*/ void paint( QPainter* painter, const QStyleOptionGraphicsItem* option,
00050                               QWidget* widget = 0 );
00051 
00052         inline const Constraint& constraint() const { return m_constraint; }
00053         Constraint proxyConstraint() const;
00054 
00055         void setStart( const QPointF& start );
00056         inline QPointF start() const { return m_start; }
00057         void setEnd( const QPointF& end );
00058         inline QPointF end() const { return m_end; }
00059 
00060         void updateItem( const QPointF& start,const QPointF& end );
00061     private:
00062         Constraint m_constraint;
00063         QPointF m_start;
00064         QPointF m_end;
00065     };
00066 }
00067 
00068 #endif /* KDGANTTCONSTRAINTGRAPHICSITEM_H */
00069 

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