Method addLine

graph_view.cpp:212–224

}

void MyGraphicsView::addLine(MyGraphicsVexItem *start, MyGraphicsVexItem *end){
    MyGraphicsLineItem *newLine = new MyGraphicsLineItem(start, end, type == DG);
    scene()->addItem(newLine);
    newLine->estConnection(this);
    newLine->refrshLine();
    newLine->setZValue(--zValue);
    start->addStartLine(newLine);
    end->addEndLine(newLine);
    arcNum++;
    lines.push_back(newLine);
    emit arcAdded(newLine);
    emit logAdded(new viewLog("[Arc] | Added \""+newLine->stVex()->Text()+"\" -> \""+newLine->edVex()->Text()+"\""));
}

MyGraphicsVexItem* MyGraphicsView::selectedVex(){
    return selItem ? (selItem->type() == QGraphicsItem::UserType + 1 ? (MyGraphicsVexItem*)selItem : nullptr) : nullptr;