void MainWindow::on_actionLoad_XML_triggered()
{
scene->clear();
graph.clear();
QString fileName = QFileDialog::getOpenFileName(this, tr("Open File"), "", "Files (*.xml)", NULL);
CFG cfg = parser.getCFG(fileName);
// add all blocks
for(Block block : cfg.getBlocks()) {
Node* node = new Node(block.getName(), 50, 50);
node->setX(qrand() % ((500 + 1) - (-500)) + (-500));
node->setY(qrand() % ((500 + 1) - (-500)) + (-500));
scene->addItem(node);
graph.addNode(node);
}
// add all edges
for(Block block : cfg.getBlocks()) {
AbstractNode* from = graph.getNode(block.getName());
for(QString succName : block.getSuccessors()) {
AbstractNode* to = graph.getNode(succName);
EdgeItem* edge = new EdgeItem(from,to,true);
edge->adjust();
scene->addItem(edge);
graph.addEdge(from,to,edge);
}
}
graph.setStart(graph.getNode(cfg.getStart().getName()));
}
QVariant NodeItem::itemChange(QGraphicsItem::GraphicsItemChange change,
const QVariant& value)
{
if (change == QGraphicsItem::ItemPositionHasChanged) {
QListIterator<EdgeItem*> i(m_edges);
while (i.hasNext()) {
EdgeItem* edge = i.next();
edge->adjust();
}
}
return QGraphicsItem::itemChange(change, value);
}
