added method clearView

Author: Sergey Agafonov

src/nodeitem.cpp

@@ -179,14 +179,12 @@ void NodeItem::updateSize()
     foreach (PortItem *port, m_portList)
     {
         if (port->portType() == PortItem::TypeIn)
-            port->setPos(0, (port->posY() + m_indentSize.height() + m_titleSize.height()) - port->size().height() / 2);
+            port->setPos(0, (port->posY() + m_indentSize.height() +
+                             m_titleSize.height()) - port->size().height() / 2);
         else
-        {
-            qDebug() << "pos y:" << (port->posY() + m_indentSize.height() + m_titleSize.height()) - port->size().height() / 2;
-
             port->setPos(m_size.width() - port->size().width(),
-                         (port->posY() + m_indentSize.height() + m_titleSize.height()) - port->size().height() / 2);
-        }
+                         (port->posY() + m_indentSize.height() +
+                          m_titleSize.height()) - port->size().height() / 2);
     }
 
     prepareGeometryChange();

src/nodeview.cpp

@@ -127,7 +127,7 @@ void NodeView::mousePressEvent(QMouseEvent *e)
         NodeItem *node = checkNodeHit(mapToScene(e->pos()));
 
         if (node)
-           emit calledMenuNode(node);
+            emit calledMenuNode(node);
         else emit calledMenuView();
     }
 
@@ -397,13 +397,17 @@ void NodeView::removeNode(NodeItem *node)
             m_ropeList.removeOne(rope);
             m_scene->removeItem(rope);
         }
+
+        port->disconnect();
+        port->deleteLater();
     }
 
     foreach(GroupItem *group, m_groupList)
         group->removeNode(node);
 
     m_nodeList.removeOne(node);
     m_scene->removeItem(node);
+    node->deleteLater();
 }
 
 NodeItem *NodeView::nodeAt(const QUuid &uuid)
@@ -484,6 +488,29 @@ void NodeView::removePortConnections(PortItem *port)
     }
 }
 
+void NodeView::clearView()
+{
+    foreach (NodeItem *node, m_nodeList)
+    {
+        if(node->widget())
+            node->widget()->deleteLater();
+
+        removeNode(node);
+    }
+
+    foreach (GroupItem *group, m_groupList)
+    {
+        m_scene->removeItem(group);
+        group->deleteLater();
+    }
+
+    m_groupList.clear();
+    m_nodeList.clear();
+    m_ropeList.clear();
+    m_selectedNodes.clear();
+    m_scene->clear();
+}
+
 bool NodeView::isPortFree(PortItem *port)
 {
     bool result = true;

src/nodeview.h

@@ -72,6 +72,8 @@ public slots:
     bool createConnection(PortItem *portOut, PortItem *portIn);
     void removePortConnections(PortItem *port);
 
+    void clearView();
+
     QList<NodeItem*> nodeList(){return m_nodeList;}
     QList<RopeItem*> ropeList(){return m_ropeList;}
     QList<GroupItem*> groupList(){return m_groupList;}