feat: add node edges

src/gui/network/SocketGraphic.cpp

@@ -0,0 +1,27 @@
+#include "gui/network/SocketGraphic.h"
+#include <QTextDocument>
+#include <iostream>
+#include <qgraphicsitem.h>
+
+SocketGraphic::SocketGraphic(QGraphicsItem *parent)
+: QGraphicsItem(parent)
+{
+    socketSize_ = 3;
+}
+
+QRectF SocketGraphic::boundingRect() const
+{
+    auto boundRect = QRect(-socketSize_/2, -socketSize_/2, socketSize_, socketSize_);
+    return boundRect;
+}
+
+void SocketGraphic::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
+{
+    QBrush whiteBrush = QBrush("white");
+    painter->setPen(Qt::NoPen);
+    painter->setBrush(whiteBrush);
+    painter->drawEllipse(QPoint(0,0), socketSize_, socketSize_);
+ 
+}
+
+