void ProfileScene::addVertex(QPoint mousePos)
{
//if clicked on an edge, add point on this edge
QGraphicsLineItem* currentEdge = 0;
bool foundEdge(false);
Profile* profile = currentProfile;
Vertex* currentVertex = profile->getProfileVertex();
while(currentVertex->getNeighbor2() != 0) {
currentEdge = currentVertex->getEdge2();
if (currentEdge->isUnderMouse()) {
foundEdge = true;
break;
}
currentVertex = currentVertex->getNeighbor2();
}
float w = mousePos.x();
float z = mousePos.y();
if (foundEdge) {
QGraphicsEllipseItem* ellipse = new QGraphicsEllipseItem(w - vertexRadius, z - vertexRadius, vertexRadius * 2.0f, vertexRadius * 2.0f);
QRectF thisSize = this->sceneRect();
Utils::adjustCoordinatesSceneTo3D(w, z, thisSize.width(), thisSize.height());
//build the new vertex and add the edges between the new neighbour
Vertex* newVertex = new Vertex(w, z);
newVertex->setEllipse(ellipse);
Vertex* nextVertex = currentVertex->getNeighbor2();
Vertex* previousVertex = currentVertex;
QGraphicsLineItem* edge1 = previousVertex->replaceNeighbour(nextVertex, newVertex);
QGraphicsLineItem* edge2 = nextVertex->replaceNeighbour(previousVertex, newVertex);
//set all neighbour/edges of the new vertex
newVertex->setNeighbor1(previousVertex);//addNeighbor
newVertex->setEdge1(edge1);
newVertex->setNeighbor2(nextVertex);//addNeighbor
newVertex->setEdge2(edge2);
//finally show the ellipse and delete the old edge
this->addItem(ellipse);
this->addItem(edge1);
this->addItem(edge2);
this->removeItem(currentEdge);
delete currentEdge;
// tell the mesh to generate new point/triangle
mesh->setUpdateOnMesh();
} else {
// we don't have clicked on an edge, we will put the point at the current position
Vertex * newVertex = new Vertex(0,0);
newVertex->setEllipse(new QGraphicsEllipseItem(w - vertexRadius, z - vertexRadius, vertexRadius * 2.0f, vertexRadius*2.0f));
QRectF thisSize = this->sceneRect();
Utils::adjustCoordinatesSceneTo3D(w, z, thisSize.width(), thisSize.height());
newVertex->setX(w);
newVertex->setY(z);
this->currentProfile->addVertexEnd(newVertex);
this->addItem(newVertex->getEllipse());
this->addItem(newVertex->getEdge1());
// tell the mesh to generate new point/triangle
mesh->setUpdateOnMesh();
}
}
