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82 lines
2.1 KiB
82 lines
2.1 KiB
/* -*- mode: C++ ; c-file-style: "stroustrup" -*- ***************************** |
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* Qwt Widget Library |
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* Copyright (C) 1997 Josef Wilgen |
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* Copyright (C) 2002 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_MAGNIFIER_H |
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#define QWT_MAGNIFIER_H 1 |
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#include "qwt_global.h" |
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#include <qobject.h> |
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class QWidget; |
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class QMouseEvent; |
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class QWheelEvent; |
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class QKeyEvent; |
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/*! |
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\brief QwtMagnifier provides zooming, by magnifying in steps. |
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Using QwtMagnifier a plot can be zoomed in/out in steps using |
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keys, the mouse wheel or moving a mouse button in vertical direction. |
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*/ |
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class QWT_EXPORT QwtMagnifier: public QObject |
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{ |
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Q_OBJECT |
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public: |
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explicit QwtMagnifier(QWidget *); |
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virtual ~QwtMagnifier(); |
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QWidget *parentWidget(); |
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const QWidget *parentWidget() const; |
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void setEnabled(bool); |
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bool isEnabled() const; |
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// mouse |
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void setMouseFactor(double); |
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double mouseFactor() const; |
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void setMouseButton(int button, int buttonState = Qt::NoButton); |
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void getMouseButton(int &button, int &buttonState) const; |
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// mouse wheel |
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void setWheelFactor(double); |
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double wheelFactor() const; |
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void setWheelButtonState(int buttonState); |
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int wheelButtonState() const; |
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// keyboard |
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void setKeyFactor(double); |
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double keyFactor() const; |
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void setZoomInKey(int key, int modifiers); |
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void getZoomInKey(int &key, int &modifiers) const; |
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void setZoomOutKey(int key, int modifiers); |
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void getZoomOutKey(int &key, int &modifiers) const; |
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virtual bool eventFilter(QObject *, QEvent *); |
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protected: |
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virtual void rescale(double factor) = 0; |
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virtual void widgetMousePressEvent(QMouseEvent *); |
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virtual void widgetMouseReleaseEvent(QMouseEvent *); |
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virtual void widgetMouseMoveEvent(QMouseEvent *); |
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virtual void widgetWheelEvent(QWheelEvent *); |
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virtual void widgetKeyPressEvent(QKeyEvent *); |
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virtual void widgetKeyReleaseEvent(QKeyEvent *); |
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private: |
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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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