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1 | /**************************************************************************** |
2 | ** |
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3 | ** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). |
4 | ** Contact: http://www.qt-project.org/legal |
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5 | ** |
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6 | ** This file is part of the examples of the Qt Toolkit. |
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7 | ** |
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8 | ** $QT_BEGIN_LICENSE:BSD$ |
9 | ** You may use this file under the terms of the BSD license as follows: |
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10 | ** |
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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. |
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23 | ** |
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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 | ** $QT_END_LICENSE$ |
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38 | ** |
39 | ****************************************************************************/ |
40 | |
41 | #ifndef EDGE_H |
42 | #define EDGE_H |
43 | |
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44 | #include <Standard_WarningsDisable.hxx> |
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45 | #include <QGraphicsItem> |
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46 | #include <Standard_WarningsRestore.hxx> |
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47 | |
48 | class Node; |
49 | |
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50 | //! [0] |
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51 | class Edge : public QGraphicsItem |
52 | { |
53 | public: |
54 | Edge(Node *sourceNode, Node *destNode); |
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55 | |
56 | Node *sourceNode() const; |
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57 | Node *destNode() const; |
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58 | |
59 | void adjust(); |
60 | |
61 | enum { Type = UserType + 2 }; |
62 | int type() const { return Type; } |
63 | |
64 | protected: |
65 | QRectF boundingRect() const; |
66 | void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget); |
67 | |
68 | private: |
69 | Node *source, *dest; |
70 | |
71 | QPointF sourcePoint; |
72 | QPointF destPoint; |
73 | qreal arrowSize; |
74 | }; |
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75 | //! [0] |
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76 | |
77 | #endif |