KD Chart 2 [rev.2.4]
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00001 /**************************************************************************** 00002 ** Copyright (C) 2001-2012 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 KDGANTTITEMDELEGATE_H 00024 #define KDGANTTITEMDELEGATE_H 00025 00026 #include <QItemDelegate> 00027 #include <QBrush> 00028 #include <QPen> 00029 #include <QDebug> 00030 00031 #include "kdchart_export.h" 00032 #include "kdganttglobal.h" 00033 00034 namespace KDGantt { 00035 class StyleOptionGanttItem; 00036 class Constraint; 00037 00038 class KDGANTT_EXPORT ItemDelegate : public QItemDelegate { 00039 Q_OBJECT 00040 KDGANTT_DECLARE_PRIVATE_BASE_POLYMORPHIC( ItemDelegate ) 00041 public: 00042 enum InteractionState { State_None = 0, 00043 State_Move, 00044 State_ExtendLeft, 00045 State_ExtendRight, 00046 State_DragConstraint 00047 }; 00048 00049 explicit ItemDelegate( QObject* parent = 0 ); 00050 virtual ~ItemDelegate(); 00051 00052 void setDefaultBrush( ItemType type, const QBrush& brush ); 00053 QBrush defaultBrush( ItemType type ) const; 00054 00055 void setDefaultPen( ItemType type, const QPen& pen ); 00056 QPen defaultPen( ItemType type ) const; 00057 00058 virtual Span itemBoundingSpan(const StyleOptionGanttItem& opt, const QModelIndex& idx) const; 00059 virtual QRectF constraintBoundingRect( const QPointF& start, const QPointF& end, const Constraint &constraint ) const; 00060 virtual InteractionState interactionStateFor( const QPointF& pos, 00061 const StyleOptionGanttItem& opt, 00062 const QModelIndex& idx ) const; 00063 00064 virtual void paintGanttItem( QPainter* p, const StyleOptionGanttItem& opt, const QModelIndex& idx ); 00065 virtual void paintConstraintItem( QPainter* p, const QStyleOptionGraphicsItem& opt, 00066 const QPointF& start, const QPointF& end, const Constraint &constraint ); 00067 00068 virtual QString toolTip( const QModelIndex &idx ) const; 00069 00070 protected: 00071 void paintFinishStartConstraint( QPainter* p, const QStyleOptionGraphicsItem& opt, 00072 const QPointF& start, const QPointF& end, const Constraint &constraint ); 00073 QPolygonF finishStartLine( const QPointF& start, const QPointF& end ) const; 00074 QPolygonF finishStartArrow( const QPointF& start, const QPointF& end ) const; 00075 00076 void paintFinishFinishConstraint( QPainter* p, const QStyleOptionGraphicsItem& opt, 00077 const QPointF& start, const QPointF& end, const Constraint &constraint ); 00078 QPolygonF finishFinishLine( const QPointF& start, const QPointF& end ) const; 00079 QPolygonF finishFinishArrow( const QPointF& start, const QPointF& end ) const; 00080 00081 void paintStartStartConstraint( QPainter* p, const QStyleOptionGraphicsItem& opt, 00082 const QPointF& start, const QPointF& end, const Constraint &constraint ); 00083 QPolygonF startStartLine( const QPointF& start, const QPointF& end ) const; 00084 QPolygonF startStartArrow( const QPointF& start, const QPointF& end ) const; 00085 00086 void paintStartFinishConstraint( QPainter* p, const QStyleOptionGraphicsItem& opt, 00087 const QPointF& start, const QPointF& end, const Constraint &constraint ); 00088 QPolygonF startFinishLine( const QPointF& start, const QPointF& end ) const; 00089 QPolygonF startFinishArrow( const QPointF& start, const QPointF& end ) const; 00090 00091 00092 }; 00093 } 00094 00095 #ifndef QT_NO_DEBUG_STREAM 00096 QDebug operator<<( QDebug dbg, KDGantt::ItemDelegate::InteractionState ); 00097 #endif 00098 00099 #endif /* KDGANTTITEMDELEGATE_H */ 00100