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item-tracer.h
1 /***************************************************************************
2 ** **
3 ** QCustomPlot, an easy to use, modern plotting widget for Qt **
4 ** Copyright (C) 2011, 2012, 2013, 2014 Emanuel Eichhammer **
5 ** **
6 ** This program is free software: you can redistribute it and/or modify **
7 ** it under the terms of the GNU General Public License as published by **
8 ** the Free Software Foundation, either version 3 of the License, or **
9 ** (at your option) any later version. **
10 ** **
11 ** This program is distributed in the hope that it will be useful, **
12 ** but WITHOUT ANY WARRANTY; without even the implied warranty of **
13 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the **
14 ** GNU General Public License for more details. **
15 ** **
16 ** You should have received a copy of the GNU General Public License **
17 ** along with this program. If not, see http://www.gnu.org/licenses/. **
18 ** **
19 ****************************************************************************
20 ** Author: Emanuel Eichhammer **
21 ** Website/Contact: http://www.qcustomplot.com/ **
22 ** Date: 07.04.14 **
23 ** Version: 1.2.1 **
24 ****************************************************************************/
25 
26 #ifndef QCP_ITEM_TRACER_H
27 #define QCP_ITEM_TRACER_H
28 
29 #include "../global.h"
30 #include "../item.h"
31 
32 class QCPPainter;
33 class QCustomPlot;
34 class QCPGraph;
35 
36 class QCP_LIB_DECL QCPItemTracer : public QCPAbstractItem
37 {
38  Q_OBJECT
40  Q_PROPERTY(QPen pen READ pen WRITE setPen)
41  Q_PROPERTY(QPen selectedPen READ selectedPen WRITE setSelectedPen)
42  Q_PROPERTY(QBrush brush READ brush WRITE setBrush)
43  Q_PROPERTY(QBrush selectedBrush READ selectedBrush WRITE setSelectedBrush)
44  Q_PROPERTY(double size READ size WRITE setSize)
45  Q_PROPERTY(TracerStyle style READ style WRITE setStyle)
46  Q_PROPERTY(QCPGraph* graph READ graph WRITE setGraph)
47  Q_PROPERTY(double graphKey READ graphKey WRITE setGraphKey)
48  Q_PROPERTY(bool interpolating READ interpolating WRITE setInterpolating)
50 public:
56  enum TracerStyle { tsNone
57  ,tsPlus
58  ,tsCrosshair
59  ,tsCircle
60  ,tsSquare
61  };
62  Q_ENUMS(TracerStyle)
63 
64  QCPItemTracer(QCustomPlot *parentPlot);
65  virtual ~QCPItemTracer();
66 
67  // getters:
68  QPen pen() const { return mPen; }
69  QPen selectedPen() const { return mSelectedPen; }
70  QBrush brush() const { return mBrush; }
71  QBrush selectedBrush() const { return mSelectedBrush; }
72  double size() const { return mSize; }
73  TracerStyle style() const { return mStyle; }
74  QCPGraph *graph() const { return mGraph; }
75  double graphKey() const { return mGraphKey; }
76  bool interpolating() const { return mInterpolating; }
77 
78  // setters;
79  void setPen(const QPen &pen);
80  void setSelectedPen(const QPen &pen);
81  void setBrush(const QBrush &brush);
82  void setSelectedBrush(const QBrush &brush);
83  void setSize(double size);
84  void setStyle(TracerStyle style);
85  void setGraph(QCPGraph *graph);
86  void setGraphKey(double key);
87  void setInterpolating(bool enabled);
88 
89  // reimplemented virtual methods:
90  virtual double selectTest(const QPointF &pos, bool onlySelectable, QVariant *details=0) const;
91 
92  // non-virtual methods:
93  void updatePosition();
94 
95  QCPItemPosition * const position;
96 
97 protected:
98  // property members:
99  QPen mPen, mSelectedPen;
100  QBrush mBrush, mSelectedBrush;
101  double mSize;
102  TracerStyle mStyle;
103  QCPGraph *mGraph;
104  double mGraphKey;
105  bool mInterpolating;
106 
107  // reimplemented virtual methods:
108  virtual void draw(QCPPainter *painter);
109 
110  // non-virtual methods:
111  QPen mainPen() const;
112  QBrush mainBrush() const;
113 };
114 
115 #endif // QCP_ITEM_TRACER_H
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