void GraphViewer::onValueEdited()
{
bool ok=false;
int newvalue = _valueEditor.text().toInt(&ok);
if (ok)
{
if (qgraphicsitem_cast<QGraphicsSimpleTextItem*>(_editedItem))
{
QGraphicsSimpleTextItem* text = qgraphicsitem_cast<QGraphicsSimpleTextItem*>(_editedItem);
text->setText(QString("%1").arg(newvalue));
QGraphicsItem* parent = text->parentItem();
if (parent)
{
parent->setData(KEY_EDGE_WEIGHT, newvalue);
}
_valueEditor.hide();
}
}
}
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());
}
}
}