You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
87 lines
2.4 KiB
C
87 lines
2.4 KiB
C
3 weeks ago
|
/* -*- 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_MAGNIFIER_H
|
||
|
|
#define QWT_MAGNIFIER_H 1
|
||
|
|
|
||
|
|
#include "qwt_global.h"
|
||
|
|
#include <qobject.h>
|
||
|
|
|
||
|
|
class QWidget;
|
||
|
|
class QMouseEvent;
|
||
|
|
class QWheelEvent;
|
||
|
|
class QKeyEvent;
|
||
|
|
|
||
|
|
/*!
|
||
|
|
\brief QwtMagnifier provides zooming, by magnifying in steps.
|
||
|
|
|
||
|
|
Using QwtMagnifier a plot can be zoomed in/out in steps using
|
||
|
|
keys, the mouse wheel or moving a mouse button in vertical direction.
|
||
|
|
*/
|
||
|
|
class QWT_EXPORT QwtMagnifier: public QObject
|
||
|
|
{
|
||
|
|
Q_OBJECT
|
||
|
|
|
||
|
|
public:
|
||
|
|
explicit QwtMagnifier( QWidget * );
|
||
|
|
virtual ~QwtMagnifier();
|
||
|
|
|
||
|
|
QWidget *parentWidget();
|
||
|
|
const QWidget *parentWidget() const;
|
||
|
|
|
||
|
|
void setEnabled( bool );
|
||
|
|
bool isEnabled() const;
|
||
|
|
|
||
|
|
// mouse
|
||
|
|
void setMouseFactor( double );
|
||
|
|
double mouseFactor() const;
|
||
|
|
|
||
|
|
void setMouseButton( Qt::MouseButton, Qt::KeyboardModifiers = Qt::NoModifier );
|
||
|
|
void getMouseButton( Qt::MouseButton &, Qt::KeyboardModifiers & ) const;
|
||
|
|
|
||
|
|
// mouse wheel
|
||
|
|
void setWheelFactor( double );
|
||
|
|
double wheelFactor() const;
|
||
|
|
|
||
|
|
void setWheelModifiers( Qt::KeyboardModifiers );
|
||
|
|
Qt::KeyboardModifiers wheelModifiers() const;
|
||
|
|
|
||
|
|
// keyboard
|
||
|
|
void setKeyFactor( double );
|
||
|
|
double keyFactor() const;
|
||
|
|
|
||
|
|
void setZoomInKey( int key, Qt::KeyboardModifiers = Qt::NoModifier );
|
||
|
|
void getZoomInKey( int &key, Qt::KeyboardModifiers & ) const;
|
||
|
|
|
||
|
|
void setZoomOutKey( int key, Qt::KeyboardModifiers = Qt::NoModifier );
|
||
|
|
void getZoomOutKey( int &key, Qt::KeyboardModifiers & ) const;
|
||
|
|
|
||
|
|
virtual bool eventFilter( QObject *, QEvent * );
|
||
|
|
|
||
|
|
protected:
|
||
|
|
/*!
|
||
|
|
Rescale the parent widget
|
||
|
|
\param factor Scale factor
|
||
|
|
*/
|
||
|
|
virtual void rescale( double factor ) = 0;
|
||
|
|
|
||
|
|
virtual void widgetMousePressEvent( QMouseEvent * );
|
||
|
|
virtual void widgetMouseReleaseEvent( QMouseEvent * );
|
||
|
|
virtual void widgetMouseMoveEvent( QMouseEvent * );
|
||
|
|
virtual void widgetWheelEvent( QWheelEvent * );
|
||
|
|
virtual void widgetKeyPressEvent( QKeyEvent * );
|
||
|
|
virtual void widgetKeyReleaseEvent( QKeyEvent * );
|
||
|
|
|
||
|
|
private:
|
||
|
|
class PrivateData;
|
||
|
|
PrivateData *d_data;
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif
|