NAME

QwtPlotAbstractCanvas - Base class for all type of plot canvases.

SYNOPSIS

#include <qwt_plot_abstract_canvas.h>

Inherited by QwtPlotAbstractGLCanvas, and QwtPlotCanvas.

Public Types

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

QwtPlotAbstractCanvas (QWidget *canvasWidget)
Constructor. virtual ~QwtPlotAbstractCanvas ()
Destructor. QwtPlot * plot ()
Return parent plot widget. const QwtPlot * plot () const
Return parent plot widget. void setFocusIndicator (FocusIndicator)
FocusIndicator focusIndicator () const
void setBorderRadius (double)
double borderRadius () const

Protected Member Functions

QWidget * canvasWidget ()
const QWidget * canvasWidget () const
virtual void drawFocusIndicator (QPainter *)
virtual void drawBorder (QPainter *)
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.

Definition at line 21 of file qwt_plot_abstract_canvas.h.

Member Enumeration Documentation

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.