/**
* Displays an edge on the canvas.
* Sets the parameters used for drawing the edge on the canvas.
* @param sCaller Identifies the edge's head node
* @param sCallee Identifies the edge's tail node
* @param arrCurve Control points for the edge's spline
*/
void GraphWidget::drawEdge(const QString& sCaller, const QString& sCallee,
const QPointArray& arrCurve)
{
GraphNode* pCaller, * pCallee;
GraphEdge* pEdge;
// Find the edge
pCaller = addNode(sCaller);
pCallee = addNode(sCallee);
pEdge = pCaller->addOutEdge(pCallee);
// Set the visual aspects of the edge
pEdge->setPoints(arrCurve, s_ai);
pEdge->setZ(1.0);
pEdge->setPen(QPen(Qt::black));
pEdge->setBrush(QBrush(Qt::black));
// Draw the edge
pEdge->show();
}
