QwtPlotPanner provides panning of a plot canvas. More...

#include <qwt_plot_panner.h>

Inheritance diagram for QwtPlotPanner:

Classes
class	PrivateData

Public Member Functions
QWidget *	canvas ()
	Return observed plot canvas. More...

const QWidget *	canvas () const
	Return Observed plot canvas. More...

bool	isAxisEnabled (int axis) 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...

	QwtPlotPanner (QWidget *)
	A panner for the canvas of a QwtPlot. More...

void	setAxisEnabled (int axis, bool on)
	En/Disable an axis. More...

virtual	~QwtPlotPanner ()
	Destructor. More...

Public Member Functions inherited from QwtPanner
const QCursor	cursor () const

virtual bool	eventFilter (QObject , QEvent )
	Event filter. More...

void	getAbortKey (int &key, Qt::KeyboardModifiers &) const
	Get the abort key and modifiers. More...

void	getMouseButton (Qt::MouseButton &button, Qt::KeyboardModifiers &) const
	Get mouse button and modifiers used for panning. More...

bool	isEnabled () const

bool	isOrientationEnabled (Qt::Orientation) const

Qt::Orientations	orientations () const
	Return the orientation, where paning is enabled. More...

	QwtPanner (QWidget *parent)

void	setAbortKey (int key, Qt::KeyboardModifiers=Qt::NoModifier)

void	setCursor (const QCursor &)

void	setEnabled (bool)
	En/disable the panner. More...

void	setMouseButton (Qt::MouseButton, Qt::KeyboardModifiers=Qt::NoModifier)

void	setOrientations (Qt::Orientations)

virtual	~QwtPanner ()
	Destructor. More...

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

Protected Member Functions
virtual QBitmap	contentsMask () const

virtual QPixmap	grab () const

Protected Member Functions inherited from QwtPanner
virtual void	paintEvent (QPaintEvent *)
	Paint event. More...

virtual void	widgetKeyPressEvent (QKeyEvent *)

virtual void	widgetKeyReleaseEvent (QKeyEvent *)

virtual void	widgetMouseMoveEvent (QMouseEvent *)

virtual void	widgetMousePressEvent (QMouseEvent *)

virtual void	widgetMouseReleaseEvent (QMouseEvent *)

Private Attributes
PrivateData *	d_data

Additional Inherited Members
Signals inherited from QwtPanner
void	moved (int dx, int dy)

void	panned (int dx, int dy)

Detailed Description

QwtPlotPanner provides panning of a plot canvas.

QwtPlotPanner is a panner for a plot canvas, 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

Definition at line 31 of file qwt_plot_panner.h.

Constructor & Destructor Documentation

QwtPlotPanner::QwtPlotPanner ( QWidget * canvas )

explicit

A panner for the canvas of a QwtPlot.

The panner is enabled for all axes

Parameters

canvas Plot canvas to pan, also the parent object

See also: setAxisEnabled()

Definition at line 111 of file qwt_plot_panner.cpp.

QwtPlotPanner::~QwtPlotPanner ( )

virtual

Destructor.

Definition at line 121 of file qwt_plot_panner.cpp.

Member Function Documentation

QWidget * QwtPlotPanner::canvas ( )

Return observed plot canvas.

Definition at line 160 of file qwt_plot_panner.cpp.

const QWidget * QwtPlotPanner::canvas ( ) const

Return Observed plot canvas.

Definition at line 166 of file qwt_plot_panner.cpp.

QBitmap QwtPlotPanner::contentsMask ( ) const

protectedvirtual

Calculate a mask from the border path of the canvas

Returns: Mask as bitmap

See also: QwtPlotCanvas::borderPath()

Reimplemented from QwtPanner.

Definition at line 246 of file qwt_plot_panner.cpp.

QPixmap QwtPlotPanner::grab ( ) const

protectedvirtual

Returns: Pixmap with the content of the canvas

Reimplemented from QwtPanner.

Definition at line 257 of file qwt_plot_panner.cpp.

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()

Definition at line 151 of file qwt_plot_panner.cpp.

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()

Definition at line 199 of file qwt_plot_panner.cpp.

QwtPlot * QwtPlotPanner::plot ( )

Return plot widget, containing the observed plot canvas.

Definition at line 172 of file qwt_plot_panner.cpp.

const QwtPlot * QwtPlotPanner::plot ( ) const

Return plot widget, containing the observed plot canvas.

Definition at line 182 of file qwt_plot_panner.cpp.

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()

Definition at line 137 of file qwt_plot_panner.cpp.

Member Data Documentation

PrivateData* QwtPlotPanner::d_data

private

Definition at line 56 of file qwt_plot_panner.h.

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

Classes

Public Member Functions

Protected Slots

Protected Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation