Qwt User's Guide 6.1.0

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qwt_plot_picker.h
1 /* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
2 * Qwt Widget Library
3 * Copyright (C) 1997 Josef Wilgen
4 * Copyright (C) 2002 Uwe Rathmann
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the Qwt License, Version 1.0
8 *****************************************************************************/
9
10 #ifndef QWT_PLOT_PICKER_H
11 #define QWT_PLOT_PICKER_H
12
13 #include "qwt_global.h"
14 #include "qwt_picker.h"
15 #include <qvector.h>
16
17 class QwtPlot;
18
27 class QWT_EXPORT QwtPlotPicker: public QwtPicker
28 {
29 Q_OBJECT
30
31 public:
32 explicit QwtPlotPicker( QWidget *canvas );
33 virtual ~QwtPlotPicker();
34
35 explicit QwtPlotPicker( int xAxis, int yAxis, QWidget * );
36
37 explicit QwtPlotPicker( int xAxis, int yAxis,
38 RubberBand rubberBand, DisplayMode trackerMode, QWidget * );
39
40 virtual void setAxis( int xAxis, int yAxis );
41
42 int xAxis() const;
43 int yAxis() const;
44
45 QwtPlot *plot();
46 const QwtPlot *plot() const;
47
48 QWidget *canvas();
49 const QWidget *canvas() const;
50
51 Q_SIGNALS:
52
57 void selected( const QPointF &pos );
58
63 void selected( const QRectF &rect );
64
71 void selected( const QVector<QPointF> &pa );
72
79 void appended( const QPointF &pos );
80
88 void moved( const QPointF &pos );
89
90 protected:
91 QRectF scaleRect() const;
92
93 QRectF invTransform( const QRect & ) const;
94 QRect transform( const QRectF & ) const;
95
96 QPointF invTransform( const QPoint & ) const;
97 QPoint transform( const QPointF & ) const;
98
99 virtual QwtText trackerText( const QPoint & ) const;
100 virtual QwtText trackerTextF( const QPointF & ) const;
101
102 virtual void move( const QPoint & );
103 virtual void append( const QPoint & );
104 virtual bool end( bool ok = true );
105
106 private:
107 int d_xAxis;
108 int d_yAxis;
109 };
110
111 #endif