Qwt User's Guide: qwt_polar_picker.h Source File

Qwt User's Guide 6.3.0

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qwt_polar_picker.h
1/******************************************************************************
2 * QwtPolar Widget Library
3 * Copyright (C) 2008 Uwe Rathmann
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the Qwt License, Version 1.0
7 *****************************************************************************/
8
9#ifndef QWT_POLAR_PICKER_H
10#define QWT_POLAR_PICKER_H
11
12#include "qwt_global.h"
13#include "qwt_picker.h"
14
15#include <qvector.h>
16#include <qpainterpath.h>
17
18class QwtPolarPlot;
19class QwtPolarCanvas;
20class QwtPointPolar;
21
28 class QWT_EXPORT QwtPolarPicker : public QwtPicker
29{
30 Q_OBJECT
31
32 public:
33 explicit QwtPolarPicker( QwtPolarCanvas* );
34 virtual ~QwtPolarPicker();
35
36 explicit QwtPolarPicker(
37 RubberBand rubberBand, DisplayMode trackerMode,
38 QwtPolarCanvas* );
39
40 QwtPolarPlot* plot();
41 const QwtPolarPlot* plot() const;
42
43 QwtPolarCanvas* canvas();
44 const QwtPolarCanvas* canvas() const;
45
46 virtual QRect pickRect() const;
47
48 Q_SIGNALS:
49
54 void selected( const QwtPointPolar& pos );
55
62 void selected( const QVector< QwtPointPolar >& points );
63
70 void appended( const QwtPointPolar& pos );
71
79 void moved( const QwtPointPolar& pos );
80
81 protected:
82 QwtPointPolar invTransform( const QPoint& ) const;
83
84 virtual QwtText trackerText( const QPoint& ) const QWT_OVERRIDE;
85 virtual QwtText trackerTextPolar( const QwtPointPolar& ) const;
86
87 virtual void move( const QPoint& ) QWT_OVERRIDE;
88 virtual void append( const QPoint& ) QWT_OVERRIDE;
89 virtual bool end( bool ok = true ) QWT_OVERRIDE;
90
91 private:
92 virtual QPainterPath pickArea() const QWT_OVERRIDE;
93
94 class PrivateData;
95 PrivateData* m_data;
96};
97
98#endif
QVector
Definition qwt_clipper.h:23
QwtPicker
QwtPicker provides selections on a widget.
Definition qwt_picker.h:104
QwtPicker::DisplayMode
DisplayMode
Display mode.
Definition qwt_picker.h:162
QwtPicker::move
virtual void move(const QPoint &)
Definition qwt_picker.cpp:1357
QwtPicker::append
virtual void append(const QPoint &)
Definition qwt_picker.cpp:1339
QwtPicker::RubberBand
RubberBand
Definition qwt_picker.h:128
QwtPicker::trackerText
virtual QwtText trackerText(const QPoint &pos) const
Return the label for a position.
Definition qwt_picker.cpp:491
QwtPicker::end
virtual bool end(bool ok=true)
Close a selection setting the state to inactive.
Definition qwt_picker.cpp:1291
QwtPointPolar
A point in polar coordinates.
Definition qwt_point_polar.h:29
QwtPolarCanvas
Canvas of a QwtPolarPlot.
Definition qwt_polar_canvas.h:28
QwtPolarPicker
QwtPolarPicker provides selections on a plot canvas.
Definition qwt_polar_picker.h:29
QwtPolarPicker::selected
void selected(const QwtPointPolar &pos)
QwtPolarPicker::moved
void moved(const QwtPointPolar &pos)
QwtPolarPicker::appended
void appended(const QwtPointPolar &pos)
QwtPolarPicker::selected
void selected(const QVector< QwtPointPolar > &points)
QwtPolarPlot
A plotting widget, displaying a polar coordinate system.
Definition qwt_polar_plot.h:47
QwtText
A class representing a text.
Definition qwt_text.h:52