source: ntrip/trunk/BNC/qwt/qwt_plot_picker.h@ 10496

Last change on this file since 10496 was 8127, checked in by stoecker, 8 years ago

update qwt and qwtpolar, many QT5 fixes (unfinished)

File size: 2.7 KB
Line 
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
17class QwtPlot;
18
19/*!
20 \brief QwtPlotPicker provides selections on a plot canvas
21
22 QwtPlotPicker is a QwtPicker tailored for selections on
23 a plot canvas. It is set to a x-Axis and y-Axis and
24 translates all pixel coordinates into this coordinate system.
25*/
26
27class QWT_EXPORT QwtPlotPicker: public QwtPicker
28{
29 Q_OBJECT
30
31public:
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
51Q_SIGNALS:
52
53 /*!
54 A signal emitted in case of QwtPickerMachine::PointSelection.
55 \param pos Selected point
56 */
57 void selected( const QPointF &pos );
58
59 /*!
60 A signal emitted in case of QwtPickerMachine::RectSelection.
61 \param rect Selected rectangle
62 */
63 void selected( const QRectF &rect );
64
65 /*!
66 A signal emitting the selected points,
67 at the end of a selection.
68
69 \param pa Selected points
70 */
71 void selected( const QVector<QPointF> &pa );
72
73 /*!
74 A signal emitted when a point has been appended to the selection
75
76 \param pos Position of the appended point.
77 \sa append(). moved()
78 */
79 void appended( const QPointF &pos );
80
81 /*!
82 A signal emitted whenever the last appended point of the
83 selection has been moved.
84
85 \param pos Position of the moved last point of the selection.
86 \sa move(), appended()
87 */
88 void moved( const QPointF &pos );
89
90protected:
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
106private:
107 int d_xAxis;
108 int d_yAxis;
109};
110
111#endif
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