aff5997d |
1 | /**************************************************************************** |
2 | ** |
967905a3 |
3 | ** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). |
4 | ** Contact: http://www.qt-project.org/legal |
aff5997d |
5 | ** |
967905a3 |
6 | ** This file is part of the examples of the Qt Toolkit. |
aff5997d |
7 | ** |
967905a3 |
8 | ** $QT_BEGIN_LICENSE:BSD$ |
9 | ** You may use this file under the terms of the BSD license as follows: |
aff5997d |
10 | ** |
967905a3 |
11 | ** "Redistribution and use in source and binary forms, with or without |
12 | ** modification, are permitted provided that the following conditions are |
13 | ** met: |
14 | ** * Redistributions of source code must retain the above copyright |
15 | ** notice, this list of conditions and the following disclaimer. |
16 | ** * Redistributions in binary form must reproduce the above copyright |
17 | ** notice, this list of conditions and the following disclaimer in |
18 | ** the documentation and/or other materials provided with the |
19 | ** distribution. |
20 | ** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names |
21 | ** of its contributors may be used to endorse or promote products derived |
22 | ** from this software without specific prior written permission. |
aff5997d |
23 | ** |
967905a3 |
24 | ** |
25 | ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
26 | ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
27 | ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
28 | ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
29 | ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
30 | ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
31 | ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
32 | ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
33 | ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
34 | ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
35 | ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." |
36 | ** |
37 | ** $QT_END_LICENSE$ |
aff5997d |
38 | ** |
39 | ****************************************************************************/ |
40 | |
41 | #ifndef NODE_H |
42 | #define NODE_H |
43 | |
55a40de8 |
44 | #include <Standard_WarningsDisable.hxx> |
aff5997d |
45 | #include <QGraphicsItem> |
46 | #include <QList> |
55a40de8 |
47 | #include <Standard_WarningsRestore.hxx> |
aff5997d |
48 | |
49 | #include <TDF_Label.hxx> |
50 | |
51 | class Edge; |
52 | class GraphWidget; |
894133a5 |
53 | QT_BEGIN_NAMESPACE |
aff5997d |
54 | class QGraphicsSceneMouseEvent; |
894133a5 |
55 | QT_END_NAMESPACE |
aff5997d |
56 | |
894133a5 |
57 | //! [0] |
aff5997d |
58 | class Node : public QGraphicsItem |
59 | { |
60 | public: |
61 | Node(GraphWidget *graphWidget); |
62 | |
63 | void setFunction(const TDF_Label& func); |
64 | const TDF_Label& getFunction() const; |
65 | |
66 | void addEdge(Edge *edge); |
67 | QList<Edge *> edges() const; |
68 | |
69 | enum { Type = UserType + 1 }; |
70 | int type() const { return Type; } |
71 | |
894133a5 |
72 | void calculateForces(); |
73 | bool advance(); |
74 | |
aff5997d |
75 | QRectF boundingRect() const; |
76 | QPainterPath shape() const; |
77 | void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget); |
78 | |
79 | protected: |
80 | QVariant itemChange(GraphicsItemChange change, const QVariant &value); |
894133a5 |
81 | |
aff5997d |
82 | void mousePressEvent(QGraphicsSceneMouseEvent *event); |
83 | void mouseReleaseEvent(QGraphicsSceneMouseEvent *event); |
84 | |
85 | private: |
86 | QList<Edge *> edgeList; |
87 | QPointF newPos; |
88 | GraphWidget *graph; |
89 | TDF_Label myFunction; |
90 | }; |
894133a5 |
91 | //! [0] |
aff5997d |
92 | |
93 | #endif |