Draw an arc as an ellipse but without lines from the center to the start and end points. More...

#include <GraphicsArcItem.h>

Inheritance diagram for GraphicsArcItem:

Collaboration diagram for GraphicsArcItem:

Public Member Functions
	GraphicsArcItem (double x, double y, double width, double height, QGraphicsItem *parent=0)
	Constructor with individual coordinates. More...

	GraphicsArcItem (const QRectF &rect, QGraphicsItem *parent=0)
	Constructor with coordinates specified as rectangle. More...

virtual void	paint (QPainter painter, const QStyleOptionGraphicsItem option, QWidget *widget)
	Paint without interior fill. More...

Detailed Description

Draw an arc as an ellipse but without lines from the center to the start and end points.

Originally this class overrode QGraphicsEllipseItem::boundingRect and called QGraphicsScene::boundingRect. However, that led to an infinite loop since QGraphicsScene::boundingRect looped back around to QGraphicsEllipseItem::boundingRect

Definition at line 17 of file GraphicsArcItem.h.

Constructor & Destructor Documentation

◆ GraphicsArcItem() [1/2]

GraphicsArcItem::GraphicsArcItem	(	double	x,
		double	y,
		double	width,
		double	height,
		QGraphicsItem *	parent = `0`
	)

Constructor with individual coordinates.

Definition at line 12 of file GraphicsArcItem.cpp.

                                                         :
   QGraphicsEllipseItem(x,
                        y,
                        width,
                        height,
                        parent)
 {
 }

◆ GraphicsArcItem() [2/2]

GraphicsArcItem::GraphicsArcItem	(	const QRectF &	rect,
		QGraphicsItem *	parent = `0`
	)

Constructor with coordinates specified as rectangle.

Definition at line 25 of file GraphicsArcItem.cpp.

                                                         :
   QGraphicsEllipseItem (rect,
                         parent)
 {
 }

Member Function Documentation

◆ paint()

void GraphicsArcItem::paint	(	QPainter *	painter,
		const QStyleOptionGraphicsItem *	option,
		QWidget *	widget
	)

virtual

Paint without interior fill.

Definition at line 32 of file GraphicsArcItem.cpp.

 {
   painter->setPen (pen ());
   painter->drawArc (rect(),
                     startAngle (),
                     spanAngle());
 }

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

Graphics/GraphicsArcItem.h
Graphics/GraphicsArcItem.cpp