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src
qwt_polar_picker.h
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/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
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* QwtPolar Widget Library
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* Copyright (C) 2008 Uwe Rathmann
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the Qwt License, Version 1.0
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*****************************************************************************/
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#ifndef QWT_POLAR_PICKER_H
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#define QWT_POLAR_PICKER_H
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#include "qwt_polar_global.h"
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#include "qwt_picker.h"
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#include <qvector.h>
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#include <qpainterpath.h>
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class
QwtPolarPlot
;
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class
QwtPolarCanvas
;
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class
QwtPointPolar;
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class
QWT_POLAR_EXPORT
QwtPolarPicker
:
public
QwtPicker
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{
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Q_OBJECT
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public
:
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explicit
QwtPolarPicker
(
QwtPolarCanvas
* );
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virtual
~
QwtPolarPicker
();
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explicit
QwtPolarPicker
(
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RubberBand rubberBand, DisplayMode trackerMode,
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QwtPolarCanvas
* );
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QwtPolarPlot
*plot();
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const
QwtPolarPlot
*plot()
const
;
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QwtPolarCanvas
*canvas();
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const
QwtPolarCanvas
*canvas()
const
;
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virtual
QRect pickRect()
const
;
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Q_SIGNALS:
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void
selected(
const
QwtPointPolar &pos );
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void
selected(
const
QVector<QwtPointPolar> &points );
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void
appended(
const
QwtPointPolar &pos );
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void
moved(
const
QwtPointPolar &pos );
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protected
:
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QwtPointPolar invTransform(
const
QPoint & )
const
;
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virtual
QwtText trackerText(
const
QPoint & )
const
;
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virtual
QwtText trackerTextPolar(
const
QwtPointPolar & )
const
;
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virtual
void
move(
const
QPoint & );
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virtual
void
append(
const
QPoint & );
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virtual
bool
end(
bool
ok =
true
);
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private
:
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virtual
QPainterPath pickArea()
const
;
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class
PrivateData;
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PrivateData *d_data;
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};
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#endif
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