QwtPlotPanner Class Reference

#include <qwt_plot_panner.h>

Inheritance diagram for QwtPlotPanner:

List of all members.

Public Member Functions
	QwtPlotPanner (QwtPlotCanvas *)
virtual	~QwtPlotPanner ()
QwtPlotCanvas *	canvas ()
const QwtPlotCanvas *	canvas () const
bool	isAxisEnabled (int axis) const
QwtPlot *	plot ()
const QwtPlot *	plot () const
void	setAxisEnabled (int axis, bool on)
Public Member Functions inherited from QwtPanner
	QwtPanner (QWidget *parent)
virtual	~QwtPanner ()
const QCursor	cursor () const
virtual bool	eventFilter (QObject *, QEvent *)
void	getAbortKey (int &key, int &state) const
void	getMouseButton (int &button, int &buttonState) const
bool	isEnabled () const
bool	isOrientationEnabled (Qt::Orientation) const
Qt::Orientations	orientations () const
void	setAbortKey (int key, int state=Qt::NoButton)
void	setCursor (const QCursor &)
void	setEnabled (bool)
void	setMouseButton (int button, int buttonState=Qt::NoButton)
void	setOrientations (Qt::Orientations)

Protected Slots
virtual void	moveCanvas (int dx, int dy)

Additional Inherited Members
Signals inherited from QwtPanner
void	moved (int dx, int dy)
void	panned (int dx, int dy)
Protected Member Functions inherited from QwtPanner
virtual void	paintEvent (QPaintEvent *)
virtual void	widgetKeyPressEvent (QKeyEvent *)
virtual void	widgetKeyReleaseEvent (QKeyEvent *)
virtual void	widgetMouseMoveEvent (QMouseEvent *)
virtual void	widgetMousePressEvent (QMouseEvent *)
virtual void	widgetMouseReleaseEvent (QMouseEvent *)

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Detailed Description

QwtPlotPanner provides panning of a plot canvas.

QwtPlotPanner is a panner for a QwtPlotCanvas, that adjusts the scales of the axes after dropping the canvas on its new position.

Together with QwtPlotZoomer and QwtPlotMagnifier powerful ways of navigating on a QwtPlot widget can be implemented easily.

Note:

The axes are not updated, while dragging the canvas

See also:

QwtPlotZoomer, QwtPlotMagnifier

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Constructor & Destructor Documentation

QwtPlotPanner::QwtPlotPanner ( QwtPlotCanvas *  canvas )

explicit

Create a plot panner.

The panner is enabled for all axes

Parameters:

canvas

Plot canvas to pan, also the parent object

See also:

setAxisEnabled()

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Member Function Documentation

bool QwtPlotPanner::isAxisEnabled

(

int

axis

)

const

Test if an axis is enabled

Parameters:

axis	Axis, see QwtPlot::Axis

Returns:

True, if the axis is enabled

See also:

setAxisEnabled(), moveCanvas()

void QwtPlotPanner::moveCanvas ( int  dx, int  dy  )

protectedvirtualslot

Adjust the enabled axes according to dx/dy

Parameters:

dx	Pixel offset in x direction
dy	Pixel offset in y direction

See also:

QwtPanner::panned()

void QwtPlotPanner::setAxisEnabled	(	int	axis,
		bool	on
	)

En/Disable an axis.

Axes that are enabled will be synchronized to the result of panning. All other axes will remain unchanged.

Parameters:

axis	Axis, see QwtPlot::Axis
on	On/Off

See also:

isAxisEnabled(), moveCanvas()