QwtPlotAbstractCanvas Class Reference

Base class for all type of plot canvases. More...

#include <qwt_plot_abstract_canvas.h>

Inheritance diagram for QwtPlotAbstractCanvas:

Classes
class	PrivateData

Public Types
enum	FocusIndicator { NoFocusIndicator , CanvasFocusIndicator , ItemFocusIndicator }
	Focus indicator The default setting is NoFocusIndicator. More...

Public Member Functions
	QwtPlotAbstractCanvas (QWidget *canvasWidget)
	Constructor.
virtual	~QwtPlotAbstractCanvas ()
	Destructor.
QwtPlot *	plot ()
	Return parent plot widget.
const QwtPlot *	plot () const
	Return parent plot widget.
void	setFocusIndicator (FocusIndicator)
	Set the focus indicator.
FocusIndicator	focusIndicator () const
void	setBorderRadius (double)
	Set the radius for the corners of the border frame.
double	borderRadius () const

Protected Member Functions
QWidget *	canvasWidget ()
const QWidget *	canvasWidget () const
virtual void	drawFocusIndicator (QPainter *)
	Draw the focus indication.
virtual void	drawBorder (QPainter *)
	Draw the border of the canvas.
virtual void	drawBackground (QPainter *)
	Helper function for the derived plot canvas.
void	fillBackground (QPainter *)
	Helper function for the derived plot canvas.
void	drawCanvas (QPainter *)
	Draw the plot to the canvas.
void	drawStyled (QPainter *, bool)
	Helper function for the derived plot canvas.
void	drawUnstyled (QPainter *)
	Helper function for the derived plot canvas.
QPainterPath	canvasBorderPath (const QRect &rect) const
void	updateStyleSheetInfo ()
	Update the cached information about the current style sheet.

Detailed Description

Base class for all type of plot canvases.

Member Enumeration Documentation

FocusIndicator

enum QwtPlotAbstractCanvas::FocusIndicator

Focus indicator The default setting is NoFocusIndicator.

See also

setFocusIndicator(), focusIndicator(), drawFocusIndicator()

Enumerator
NoFocusIndicator	Don't paint a focus indicator.
CanvasFocusIndicator	The focus is related to the complete canvas. Paint the focus indicator using drawFocusIndicator()
ItemFocusIndicator	The focus is related to an item (curve, point, ...) on the canvas. It is up to the application to display a focus indication using f.e. highlighting.

Constructor & Destructor Documentation

QwtPlotAbstractCanvas()

QwtPlotAbstractCanvas::QwtPlotAbstractCanvas ( QWidget *  canvasWidget )

explicit

Constructor.

Parameters

canvasWidget

plot canvas widget

Member Function Documentation

borderRadius()

double QwtPlotAbstractCanvas::borderRadius

(

)

const

Returns

Radius for the corners of the border frame

See also

setBorderRadius()

canvasBorderPath()

QPainterPath QwtPlotAbstractCanvas::canvasBorderPath ( const QRect &  rect ) const

protected

Returns

Path for the canvas border

canvasWidget() [1/2]

QWidget * QwtPlotAbstractCanvas::canvasWidget ( )

protected

Returns

canvas widget

canvasWidget() [2/2]

const QWidget * QwtPlotAbstractCanvas::canvasWidget ( ) const

protected

Returns

canvas widget

drawBorder()

void QwtPlotAbstractCanvas::drawBorder ( QPainter *  painter )

protectedvirtual

Draw the border of the canvas.

Parameters

painter

Painter

Reimplemented in QwtPlotCanvas, and QwtPlotTransparentCanvas.

drawFocusIndicator()

void QwtPlotAbstractCanvas::drawFocusIndicator ( QPainter *  painter )

protectedvirtual

Draw the focus indication.

Parameters

painter

Painter

focusIndicator()

QwtPlotAbstractCanvas::FocusIndicator QwtPlotAbstractCanvas::focusIndicator

(

)

const

Returns

Focus indicator

See also

FocusIndicator, setFocusIndicator()

setBorderRadius()

void QwtPlotAbstractCanvas::setBorderRadius

(

double

radius

)

Set the radius for the corners of the border frame.

Parameters

radius

Radius of a rounded corner

See also

borderRadius()

setFocusIndicator()

void QwtPlotAbstractCanvas::setFocusIndicator

(

FocusIndicator

focusIndicator

)

Set the focus indicator.

See also

FocusIndicator, focusIndicator()

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

• /home/runner/work/QWT/QWT/src/qwt_plot_abstract_canvas.h
• /home/runner/work/QWT/QWT/src/qwt_plot_abstract_canvas.cpp