Class Avogadro::QtGui::ElementItem

class ElementItem : public QGraphicsItem

Public Functions

ElementItem(int elementNumber = 0)

Constructor. Should be called with the element number for this item. The constructor uses setData to set the element number using the key 0. This is then used by PeriodicTable to figure out which element was clicked on.

~ElementItem() override

QRectF boundingRect() const override

Returns:

the bounding rectangle of the element item.

QPainterPath shape() const override

Returns:

the painter path which is also a rectangle in this case.

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

This is where most of the action takes place. The element box is drawn along with its symbol.