QGVNode.h
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1 /***************************************************************
2 QGVCore
3 Copyright (c) 2014, Bergont Nicolas, All rights reserved.
4 
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 3.0 of the License, or (at your option) any later version.
9 
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14 
15 You should have received a copy of the GNU Lesser General Public
16 License along with this library.
17 ***************************************************************/
18 #ifndef QGVNODE_H
19 #define QGVNODE_H
20 
21 #include <QGraphicsItem>
22 #include <QPen>
23 
24 #include "qgv.h"
25 
26 class QGVEdge;
27 class QGVScene;
28 class QGVNodePrivate;
29 
34 class QGVCORE_EXPORT QGVNode : public QGraphicsItem {
35  public:
36  ~QGVNode();
37 
38  QString label() const;
39  void setLabel(const QString &label);
40 
41  QRectF boundingRect() const;
42  void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
43  QWidget *widget = 0);
44  void setAttribute(const QString &label, const QString &value);
45  QString getAttribute(const QString &name) const;
46 
47  QString posToAttributeString() const;
48 
49  void setIcon(const QImage &icon);
50 
51  enum { Type = UserType + 2 };
52  int type() const { return Type; }
53 
54  void updateLayout();
55 
56  protected:
57  QVariant itemChange(GraphicsItemChange change, const QVariant &value);
58 
59  private:
60  friend class QGVScene;
61  friend class QGVSubGraph;
62  QGVNode(QGVNodePrivate *node, QGVScene *scene);
63 
64  // Not implemented in QGVNode.cpp
65  // QPainterPath makeShape(Agnode_t* node) const;
66  // QPolygonF makeShapeHelper(Agnode_t* node) const;
67 
68  QPainterPath _path;
69  QPen _pen;
70  QBrush _brush;
71  QImage _icon;
72 
73  QGVScene *_scene;
74  QGVNodePrivate *_node;
75 };
76 
77 #endif // QGVNODE_H
Edge item.
Definition: QGVEdge.h:34
Definition: QGVNodePrivate.h:6
Node item.
Definition: QGVNode.h:34
int type() const
Definition: QGVNode.h:52
GraphViz interactive scene.
Definition: QGVScene.h:36
SubGraph item.
Definition: QGVSubGraph.h:35
#define QGVCORE_EXPORT
Definition: qgv.h:9