How to draw circle with line pattern using QGraphicsScene

[mfaghani]

Hi there,
I'm using QGraphicsScene and don't know how to draw a colored circle with horizantal line, vertical line, or other patern in a given color inside. The background of GraphicsView should be in a different color from circle and lines. Something like the image below.

I need to change the lines' thickness and color, and color of the circle.
Thank you.

[JKSH]

• Draw a circle using a QGraphicsEllipseItem
• Draw a line using a QGraphicsRectItem
• You can enter the dimensions of the circle/line into their constructors, or change the dimensions by calling setRect()
• Set the circle/line colour using setBrush()

Most importantly, set the circle as the parent of the line and set the QGraphicsItem::ItemClipsChildrenToShape flag. This puts the line inside the circle, and clips the line to the circle's perimeter.

const int DIAMETER = 100;
auto circle = new QGraphicsEllipseItem(0, 0, DIAMETER, DIAMETER);
circle->setFlag(QGraphicsItem::ItemClipsChildrenToShape, true);
circle->setBrush(Qt::green);

const int WIDTH = 10;
const int LENGTH = DIAMETER;
auto line = new QGraphicsRectItem(45, 0, WIDTH, LENGTH);
line->setParentItem(circle);
line->setBrush(Qt::black);

auto scene = new QGraphicsScene;
scene->addItem(circle);

[mfaghani]

It just works for me very well. I just used QGraphicsLineItem instead QGraphicsRectItem.
Thank you in advance