Version: 8.3.0
SceneLinkItem.hxx
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1 // Copyright (C) 2006-2016 CEA/DEN, EDF R&D
2 //
3 // This library is free software; you can redistribute it and/or
4 // modify it under the terms of the GNU Lesser General Public
5 // License as published by the Free Software Foundation; either
6 // version 2.1 of the License, or (at your option) any later version.
7 //
8 // This library is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 // Lesser General Public License for more details.
12 //
13 // You should have received a copy of the GNU Lesser General Public
14 // License along with this library; if not, write to the Free Software
15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16 //
17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
18 //
19 
20 #ifndef _SCENELINKITEM_HXX_
21 #define _SCENELINKITEM_HXX_
22 
23 #include "SceneObserverItem.hxx"
24 #include "LinkMatrix.hxx"
25 
26 #include <QPointF>
27 #include <QPainterPath>
28 #include <vector>
29 
30 #ifdef WIN32
31 #ifdef _UP
32 #undef _UP
33 #endif
34 #endif
35 
36 namespace YACS
37 {
38  namespace HMI
39  {
40 
41  typedef enum
42  {
43  _UP = 0,
44  _RIGHT = 1,
45  _DOWN = 2,
46  _LEFT = 3
47  } Direction;
48 
49  class ScenePortItem;
50  class SceneNodeItem;
51 
52  class SceneLinkItem: public SceneObserverItem
53  {
54  public:
55  SceneLinkItem(QGraphicsScene *scene, SceneItem *parent,
56  ScenePortItem* from, ScenePortItem* to,
57  QString label, Subject *subject);
58  virtual ~SceneLinkItem();
59 
60  virtual void select(bool isSelected);
61  virtual QRectF boundingRect() const;
62  virtual QPainterPath shape() const;
63  virtual void paint(QPainter *painter,
64  const QStyleOptionGraphicsItem *option,
65  QWidget *widget);
66  virtual void update(GuiEvent event, int type, Subject* son);
67  virtual void popupMenu(QWidget *caller, const QPoint &globalPos);
68  virtual void setPath(LinkPath lp);
69  virtual void minimizeDirectionChanges();
70  virtual void force2points();
71  virtual QPointF start();
72  virtual QPointF goal();
73  virtual void updateShape();
74  virtual SceneNodeItem* getFromNode();
75  virtual SceneNodeItem* getToNode();
76 
77  protected:
78  void setShape(int thickness = 1);
79  void addArrow(QPointF pfrom,
80  QPointF pto,
81  HMI::Direction dir,
82  int thickness = 1);
83  virtual QColor getBrushColor();
84  virtual QColor getPenColor();
85 
86  QPainterPath _path;
87  ScenePortItem* _from;
88  ScenePortItem* _to;
89  std::vector<QPointF> _lp;
90  std::vector<Direction> _directions;
91  int _nbPoints;
92  };
93  }
94 }
95 
96 #endif