void RaceViewer::cutLaps(void)
{
this->mLaps.clear();
QList<QGraphicsItem*> items = marker->collidingItems(Qt::IntersectsItemShape);
QList<QGraphicsLineItem*> segments;
foreach(QGraphicsItem* item, items)
{
QGraphicsLineItem* segment = qgraphicsitem_cast<QGraphicsLineItem*>(item);
if (segment != NULL)
{
QList<QGraphicsLineItem*>::iterator it = segments.begin();
bool found(false);
while (it != segments.end() && ! found)
{
if ((*it)->data(0).toInt() >= segment->data(0).toInt())
found = true;
else
it++;
}
segments.insert(it, segment);
}
}
bool GraphViewer::setupGraph(GT::Graph * graph)
{
if (!graph)
return false;
graph->vertices.resize(_vertices.size());
for (int i=0;i<graph->vertices.size();i++)
{
graph->vertices[i].id = _vertices[i]->data(KEY_VERTEX_ID).toInt();
}
// Factor 2 due to the undirected visual graph representation
QVector<GT::Edge> edges(2*_edges.size());
for (int i=0; i< _edges.size(); i++)
{
QGraphicsLineItem * edge = _edges[i];
int vertexIndex1 = edge->data(KEY_EDGE_VERTEX1).toInt();
int vertexIndex2 = edge->data(KEY_EDGE_VERTEX2).toInt();
int weight = edge->data(KEY_EDGE_WEIGHT).toInt();
if (weight < 0)
{
std::cerr << "Weights should not negative for undirected graphs" << std::endl;
return false;
}
edges[2*i].a = &graph->vertices[vertexIndex1];
edges[2*i].b = &graph->vertices[vertexIndex2];
edges[2*i].weight = weight;
edges[2*i+1].a = &graph->vertices[vertexIndex2];
edges[2*i+1].b = &graph->vertices[vertexIndex1];
edges[2*i+1].weight = weight;
}
graph->setEdges(edges);
if (graph->vertices.isEmpty())
return false;
return true;
}
void GraphViewer::onSceneMouseDoubleClick(QGraphicsSceneMouseEvent *mouseEvent)
{
QGraphicsItem * item = _scene.itemAt(mouseEvent->scenePos(), QTransform());
QGraphicsSimpleTextItem* text = qgraphicsitem_cast<QGraphicsSimpleTextItem*>(item);
// Modify edge weight
if (text)
{
QGraphicsLineItem* edge = qgraphicsitem_cast<QGraphicsLineItem*>(text->parentItem());
if (edge)
{ // text is edge weight
_editedItem = text;
int weight = edge->data(KEY_EDGE_WEIGHT).toInt();
_valueEditor.setText(QString("%1").arg(weight));
_valueEditor.show();
_valueEditor.resize(20,_valueEditor.height());
_valueEditor.move(mouseEvent->screenPos());
}
}
}