kdgantt

kdganttgraphicsitem.h

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 used under the terms of the GNU General Public
00007  ** License versions 2.0 or 3.0 as published by the Free Software
00008  ** Foundation and appearing in the files LICENSE.GPL2 and LICENSE.GPL3
00009  ** included in the packaging of this file.  Alternatively you may (at
00010  ** your option) use any later version of the GNU General Public
00011  ** License if such license has been publicly approved by
00012  ** Klarälvdalens Datakonsult AB (or its successors, if any).
00013  ** 
00014  ** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
00015  ** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
00016  ** A PARTICULAR PURPOSE. Klarälvdalens Datakonsult AB reserves all rights
00017  ** not expressly granted herein.
00018  ** 
00019  ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
00020  ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
00021  **
00022  **********************************************************************/
00023 #ifndef KDGANTTGRAPHICSITEM_H
00024 #define KDGANTTGRAPHICSITEM_H
00025 
00026 #include "kdganttglobal.h"
00027 #include "kdganttstyleoptionganttitem.h"
00028 
00029 #include <QGraphicsItem>
00030 #include <QDateTime>
00031 #include <QPersistentModelIndex>
00032 
00033 class QGraphicsLineItem;
00034 
00035 namespace KDGantt {
00036     class GraphicsScene;
00037     class ConstraintGraphicsItem;
00038 
00039     /* Can we fit every kind of item into one gfxitem class? */
00040     class GraphicsItem : public QGraphicsItem {
00041     public:
00042         enum { Type = UserType + 42 };
00043 
00044         explicit GraphicsItem( QGraphicsItem* parent = 0, GraphicsScene* scene = 0 );
00045         explicit GraphicsItem( const QModelIndex& idx, QGraphicsItem* parent = 0, GraphicsScene* scene = 0 );
00046         virtual ~GraphicsItem();
00047 
00048         /*reimp*/int type() const;
00049         /*reimp (non-virtual)*/ GraphicsScene* scene() const;
00050 
00051         void updateItem( const Span& rowgeometry, const QPersistentModelIndex& idx );
00052 
00053         //virtual ItemType itemType() const = 0;
00054 
00055         //qreal dateTimeToSceneX( const QDateTime& dt ) const;
00056         //QDateTime sceneXtoDateTime( qreal x ) const;
00057 
00058         QRectF rect() const { return m_rect; }
00059         void setRect( const QRectF& r );
00060         void setBoundingRect( const QRectF& r );
00061 
00062         virtual QString ganttToolTip() const;
00063 
00064         const QPersistentModelIndex& index() const { return m_index; }
00065         void setIndex( const QPersistentModelIndex& idx );
00066 
00067         bool isEditable() const;
00068         bool isUpdating() const { return m_isupdating; }
00069 
00070         void addStartConstraint( ConstraintGraphicsItem* );
00071         void addEndConstraint( ConstraintGraphicsItem* );
00072         void removeStartConstraint( ConstraintGraphicsItem* );
00073         void removeEndConstraint( ConstraintGraphicsItem* );
00074         QList<ConstraintGraphicsItem*> startConstraints() const { return m_startConstraints; }
00075         QList<ConstraintGraphicsItem*> endConstraints() const { return m_endConstraints; }
00076 
00077         /*reimp*/ QRectF boundingRect() const;
00078         /*reimp*/ void paint( QPainter* painter, const QStyleOptionGraphicsItem* option,
00079                               QWidget* widget = 0 );
00080 
00081         /*reimp*/ QVariant itemChange( GraphicsItemChange, const QVariant& value );
00082     protected:
00083         /*reimp*/ void focusInEvent( QFocusEvent* event );
00084         /*reimp*/ void hoverMoveEvent( QGraphicsSceneHoverEvent* );
00085         /*reimp*/ void hoverLeaveEvent( QGraphicsSceneHoverEvent* );
00086         /*reimp*/ void mousePressEvent( QGraphicsSceneMouseEvent* );
00087         /*reimp*/ void mouseReleaseEvent( QGraphicsSceneMouseEvent* );
00088         /*reimp*/ void mouseDoubleClickEvent( QGraphicsSceneMouseEvent* );
00089         /*reimp*/ void mouseMoveEvent( QGraphicsSceneMouseEvent* );
00090 
00091     private:
00092         void init();
00093 
00094         QPointF startConnector( int relationType ) const;
00095         QPointF endConnector( int relationType ) const;
00096         void updateConstraintItems();
00097         StyleOptionGanttItem getStyleOption() const;
00098         void updateModel();
00099         void updateItemFromMouse( const QPointF& scenepos );
00100 
00101         QRectF m_rect;
00102         QRectF m_boundingrect;
00103         QPersistentModelIndex m_index;
00104         bool m_isupdating;
00105         int m_istate;
00106         QPointF m_presspos;
00107         QPointF m_pressscenepos;
00108         QGraphicsLineItem* m_dragline;
00109         GraphicsItem* m_dragtarget;
00110         QList<ConstraintGraphicsItem*> m_startConstraints;
00111         QList<ConstraintGraphicsItem*> m_endConstraints;
00112     };
00113 }
00114 
00115 #endif /* KDGANTTGRAPHICSITEM_H */
00116
kdgantt

kdganttgraphicsitem.h

kdgantt

kdepim
