PlotMagnifier Class Reference

#include <plotmagnifier.h>

Inheritance diagram for PlotMagnifier:

Public Types
enum	AxisMode { X_AXIS, Y_AXIS, BOTH_AXES }

Signals
void	rescaled (QRectF new_size)

Public Member Functions
	PlotMagnifier (QWidget *canvas)
virtual void	rescale (double factor) override
void	rescale (double factor, AxisMode axis)
void	setAxisLimits (int axis, double lower, double upper)
void	setDefaultMode (AxisMode mode)
virtual void	widgetWheelEvent (QWheelEvent *event) override
virtual	~PlotMagnifier () override
Public Member Functions inherited from QwtPlotMagnifier
QWidget *	canvas ()
	Return observed plot canvas. More...
const QWidget *	canvas () const
	Return Observed plot canvas. More...
bool	isAxisEnabled (QwtAxisId) const
QwtPlot *	plot ()
	Return plot widget, containing the observed plot canvas. More...
const QwtPlot *	plot () const
	Return plot widget, containing the observed plot canvas. More...
	QwtPlotMagnifier (QWidget *)
void	setAxisEnabled (QwtAxisId, bool on)
	En/Disable an axis. More...
virtual	~QwtPlotMagnifier ()
	Destructor. More...
Public Member Functions inherited from QwtMagnifier
virtual bool	eventFilter (QObject *, QEvent *) QWT_OVERRIDE
	Event filter. More...
void	getMouseButton (Qt::MouseButton &, Qt::KeyboardModifiers &) const
void	getZoomInKey (int &key, Qt::KeyboardModifiers &) const
	Retrieve the settings of the zoom in key. More...
void	getZoomOutKey (int &key, Qt::KeyboardModifiers &) const
	Retrieve the settings of the zoom out key. More...
bool	isEnabled () const
double	keyFactor () const
double	mouseFactor () const
QWidget *	parentWidget ()
const QWidget *	parentWidget () const
	QwtMagnifier (QWidget *)
void	setEnabled (bool)
	En/disable the magnifier. More...
void	setKeyFactor (double)
	Change the key factor. More...
void	setMouseButton (Qt::MouseButton, Qt::KeyboardModifiers=Qt::NoModifier)
void	setMouseFactor (double)
	Change the mouse factor. More...
void	setWheelFactor (double)
	Change the wheel factor. More...
void	setWheelModifiers (Qt::KeyboardModifiers)
void	setZoomInKey (int key, Qt::KeyboardModifiers=Qt::NoModifier)
void	setZoomOutKey (int key, Qt::KeyboardModifiers=Qt::NoModifier)
double	wheelFactor () const
Qt::KeyboardModifiers	wheelModifiers () const
virtual	~QwtMagnifier ()
	Destructor. More...

Protected Member Functions
virtual void	widgetMousePressEvent (QMouseEvent *event) override
Protected Member Functions inherited from QwtMagnifier
virtual void	widgetKeyPressEvent (QKeyEvent *)
virtual void	widgetKeyReleaseEvent (QKeyEvent *)
virtual void	widgetMouseMoveEvent (QMouseEvent *)
virtual void	widgetMouseReleaseEvent (QMouseEvent *)

Protected Attributes
double	_lower_bounds [QwtPlot::axisCnt]
QPointF	_mouse_position
double	_upper_bounds [QwtPlot::axisCnt]

Private Member Functions
QPointF	invTransform (QPoint pos)

Private Attributes
AxisMode	_default_mode
QTimer	_future_emit

Additional Inherited Members

Public Slots inherited from QwtPlotMagnifier

Detailed Description

Definition at line 15 of file plotmagnifier.h.

Member Enumeration Documentation

AxisMode

enum PlotMagnifier::AxisMode

Enumerator
X_AXIS
Y_AXIS
BOTH_AXES

Definition at line 26 of file plotmagnifier.h.

Constructor & Destructor Documentation

PlotMagnifier()

PlotMagnifier::PlotMagnifier ( QWidget *  canvas )

explicit

Definition at line 16 of file plotmagnifier.cpp.

~PlotMagnifier()

PlotMagnifier::~PlotMagnifier ( )

overridevirtual

Definition at line 26 of file plotmagnifier.cpp.

Member Function Documentation

invTransform()

QPointF PlotMagnifier::invTransform ( QPoint  pos )

private

Definition at line 145 of file plotmagnifier.cpp.

rescale() [1/2]

virtual void PlotMagnifier::rescale ( double  factor )

inlineoverridevirtual

Zoom in/out the axes scales

Parameters

factor

A value < 1.0 zooms in, a value > 1.0 zooms out.

Reimplemented from QwtPlotMagnifier.

Definition at line 33 of file plotmagnifier.h.

rescale() [2/2]

void PlotMagnifier::rescale	(	double	factor,
		AxisMode	axis
	)

Definition at line 39 of file plotmagnifier.cpp.

rescaled

void PlotMagnifier::rescaled ( QRectF  new_size )

signal

setAxisLimits()

void PlotMagnifier::setAxisLimits	(	int	axis,
		double	lower,
		double	upper
	)

Definition at line 30 of file plotmagnifier.cpp.

setDefaultMode()

void PlotMagnifier::setDefaultMode ( AxisMode  mode )

inline

Definition at line 38 of file plotmagnifier.h.

widgetMousePressEvent()

void PlotMagnifier::widgetMousePressEvent ( QMouseEvent *  mouseEvent )

overrideprotectedvirtual

Handle a mouse press event for the observed widget.

Parameters

mouseEvent

Mouse event

See also

eventFilter(), widgetMouseReleaseEvent(), widgetMouseMoveEvent()

Reimplemented from QwtMagnifier.

Definition at line 158 of file plotmagnifier.cpp.

widgetWheelEvent()

void PlotMagnifier::widgetWheelEvent ( QWheelEvent *  wheelEvent )

overridevirtual

Handle a wheel event for the observed widget.

Parameters

wheelEvent

Wheel event

See also

eventFilter()

Reimplemented from QwtMagnifier.

Definition at line 152 of file plotmagnifier.cpp.

Member Data Documentation

_default_mode

AxisMode PlotMagnifier::_default_mode

private

Definition at line 59 of file plotmagnifier.h.

_future_emit

QTimer PlotMagnifier::_future_emit

private

Definition at line 58 of file plotmagnifier.h.

_lower_bounds

double PlotMagnifier::_lower_bounds[QwtPlot::axisCnt]

protected

Definition at line 48 of file plotmagnifier.h.

_mouse_position

QPointF PlotMagnifier::_mouse_position

protected

Definition at line 51 of file plotmagnifier.h.

_upper_bounds

double PlotMagnifier::_upper_bounds[QwtPlot::axisCnt]

protected

Definition at line 49 of file plotmagnifier.h.

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The documentation for this class was generated from the following files:

• plotmagnifier.h
• plotmagnifier.cpp