iLab Neuromorphic Robotics Toolkit  0.1
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Connection.H
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1 /*! @file
2  @author Unknown
3  @copyright GNU Public License (GPL v3)
4  @section License
5  @verbatim
6  // ////////////////////////////////////////////////////////////////////////
7  // The iLab Neuromorphic Robotics Toolkit (NRT) //
8  // Copyright 2010-2012 by the University of Southern California (USC) //
9  // and the iLab at USC. //
10  // //
11  // iLab - University of Southern California //
12  // Hedco Neurociences Building, Room HNB-10 //
13  // Los Angeles, Ca 90089-2520 - USA //
14  // //
15  // See http://ilab.usc.edu for information about this project. //
16  // ////////////////////////////////////////////////////////////////////////
17  // This file is part of The iLab Neuromorphic Robotics Toolkit. //
18  // //
19  // The iLab Neuromorphic Robotics Toolkit is free software: you can //
20  // redistribute it and/or modify it under the terms of the GNU General //
21  // Public License as published by the Free Software Foundation, either //
22  // version 3 of the License, or (at your option) any later version. //
23  // //
24  // The iLab Neuromorphic Robotics Toolkit is distributed in the hope //
25  // that it will be useful, but WITHOUT ANY WARRANTY; without even the //
26  // implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR //
27  // PURPOSE. See the GNU General Public License for more details. //
28  // //
29  // You should have received a copy of the GNU General Public License //
30  // along with The iLab Neuromorphic Robotics Toolkit. If not, see //
31  // <http://www.gnu.org/licenses/>. //
32  // ////////////////////////////////////////////////////////////////////////
33  @endverbatim */
34 
35 #ifndef SRC_APPS_NRTDESIGNER_CONNECTION_H
36 #define SRC_APPS_NRTDESIGNER_CONNECTION_H
37 
38 #include "Common.H"
39 #include "Port.H"
40 #include "ModuleRep.H"
41 
43 NRT_BEGIN_UNCHECKED_INCLUDES
44 #include <QGraphicsLineItem>
45 #include <QDebug>
46 NRT_END_UNCHECKED_INCLUDES
47 
48 
49 //! Spline representing a connection between two ports
50 class Connection : public QObject, public QGraphicsPathItem
51 {
52  Q_OBJECT
53 
54  public:
55  Connection(Port * sourcePort, Port * sinkPort);
56  virtual ~Connection();
57 
58  void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
59  QWidget *widget);
60 
61  QString sourceTopic();
62  QString sinkTopicFilter();
63 
64  Port * const sourcePort;
65  Port * const sinkPort;
66 
67  public slots:
68  //! Called when a key is pressed in the canvas
69  void keyPressedSlot(QKeyEvent * event);
70 
71  //! The source port has moved, let's redraw
72  void sourcePortMovedSlot(QPointF pos);
73 
74  //! The sink port has moved, let's redraw
75  void sinkPortMovedSlot(QPointF pos);
76 
77  signals:
78  //! Send a request to have ourselves removed
80 
81  private:
82 
83  //! Recalculate the graphical representation of this connection given the
84  //! position of the two end Ports
85  void recalculateLine();
86 
87  QPointF itsSourcePos;
88  QPointF itsSinkPos;
89 
90  QString itsSourceTopic;
91  QString itsSinkTopicFilter;
92  Port::PortType itsSourceType;
93  Port::PortType itsSinkType;
94  bool itsIsLoopback;
95 
96  QColor itsSourceMessageColor;
97  QColor itsSinkMessageColor;
98  QColor itsReturnColor;
99 };
100 
101 #endif // SRC_APPS_NRTDESIGNER_CONNECTION_H
102