You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
111 lines
2.7 KiB
111 lines
2.7 KiB
/* -*- mode: C++ ; c-file-style: "stroustrup" -*- ***************************** |
|
* Qwt Widget Library |
|
* Copyright (C) 1997 Josef Wilgen |
|
* Copyright (C) 2002 Uwe Rathmann |
|
* |
|
* This library is free software; you can redistribute it and/or |
|
* modify it under the terms of the Qwt License, Version 1.0 |
|
*****************************************************************************/ |
|
|
|
#ifndef QWT_PLOT_PICKER_H |
|
#define QWT_PLOT_PICKER_H |
|
|
|
#include "qwt_global.h" |
|
#include "qwt_picker.h" |
|
#include <qvector.h> |
|
|
|
class QwtPlot; |
|
|
|
/*! |
|
\brief QwtPlotPicker provides selections on a plot canvas |
|
|
|
QwtPlotPicker is a QwtPicker tailored for selections on |
|
a plot canvas. It is set to a x-Axis and y-Axis and |
|
translates all pixel coordinates into this coordinate system. |
|
*/ |
|
|
|
class QWT_EXPORT QwtPlotPicker: public QwtPicker |
|
{ |
|
Q_OBJECT |
|
|
|
public: |
|
explicit QwtPlotPicker( QWidget *canvas ); |
|
virtual ~QwtPlotPicker(); |
|
|
|
explicit QwtPlotPicker( int xAxis, int yAxis, QWidget * ); |
|
|
|
explicit QwtPlotPicker( int xAxis, int yAxis, |
|
RubberBand rubberBand, DisplayMode trackerMode, QWidget * ); |
|
|
|
virtual void setAxis( int xAxis, int yAxis ); |
|
|
|
int xAxis() const; |
|
int yAxis() const; |
|
|
|
QwtPlot *plot(); |
|
const QwtPlot *plot() const; |
|
|
|
QWidget *canvas(); |
|
const QWidget *canvas() const; |
|
|
|
Q_SIGNALS: |
|
|
|
/*! |
|
A signal emitted in case of QwtPickerMachine::PointSelection. |
|
\param pos Selected point |
|
*/ |
|
void selected( const QPointF &pos ); |
|
|
|
/*! |
|
A signal emitted in case of QwtPickerMachine::RectSelection. |
|
\param rect Selected rectangle |
|
*/ |
|
void selected( const QRectF &rect ); |
|
|
|
/*! |
|
A signal emitting the selected points, |
|
at the end of a selection. |
|
|
|
\param pa Selected points |
|
*/ |
|
void selected( const QVector<QPointF> &pa ); |
|
|
|
/*! |
|
A signal emitted when a point has been appended to the selection |
|
|
|
\param pos Position of the appended point. |
|
\sa append(). moved() |
|
*/ |
|
void appended( const QPointF &pos ); |
|
|
|
/*! |
|
A signal emitted whenever the last appended point of the |
|
selection has been moved. |
|
|
|
\param pos Position of the moved last point of the selection. |
|
\sa move(), appended() |
|
*/ |
|
void moved( const QPointF &pos ); |
|
|
|
protected: |
|
QRectF scaleRect() const; |
|
|
|
QRectF invTransform( const QRect & ) const; |
|
QRect transform( const QRectF & ) const; |
|
|
|
QPointF invTransform( const QPoint & ) const; |
|
QPoint transform( const QPointF & ) const; |
|
|
|
virtual QwtText trackerText( const QPoint & ) const; |
|
virtual QwtText trackerTextF( const QPointF & ) const; |
|
|
|
virtual void move( const QPoint & ); |
|
virtual void append( const QPoint & ); |
|
virtual bool end( bool ok = true ); |
|
|
|
private: |
|
int d_xAxis; |
|
int d_yAxis; |
|
}; |
|
|
|
#endif
|
|
|