File indexing completed on 2024-04-21 09:34:45

 /***************************************************************************
  *   Copyright (C) 2005 by David Saxton                                    *
  *   david@bluehaze.org                                                    *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
  *   it under the terms of the GNU General Public License as published by  *
  *   the Free Software Foundation; either version 2 of the License, or     *
  *   (at your option) any later version.                                   *
  ***************************************************************************/
 
 #include "icndocument.h"
 #include "canvasmanipulator.h"
 #include "cnitemgroup.h"
 #include "component.h"
 #include "connector.h"
 #include "conrouter.h"
 #include "ecnode.h"
 #include "flowcontainer.h"
 #include "fpnode.h"
 #include "icnview.h"
 #include "itemdocumentdata.h"
 #include "itemlibrary.h"
 #include "junctionflownode.h"
 #include "junctionnode.h"
 #include "ktechlab.h"
 #include "nodegroup.h"
 #include "outputflownode.h"
 #include "utils.h"
 
 #include <QApplication>
 #include <QClipboard>
 #include <QTimer>
 
 #include <ktechlab_debug.h>
 
 // BEGIN class ICNDocument
 ICNDocument::ICNDocument(const QString &caption)
     : ItemDocument(caption)
     , m_cells(nullptr)
 {
     m_canvas->retune(48);
     m_selectList = new CNItemGroup(this);
 
     createCellMap();
 
     m_cmManager->addManipulatorInfo(CMItemMove::manipulatorInfo());
     m_cmManager->addManipulatorInfo(CMAutoConnector::manipulatorInfo());
     m_cmManager->addManipulatorInfo(CMManualConnector::manipulatorInfo());
 }
 
 ICNDocument::~ICNDocument()
 {
     m_bDeleted = true;
 
     GuardedNodeGroupList ngToDelete = m_nodeGroupList;
     m_nodeGroupList.clear();
     qDeleteAll(ngToDelete);
 
     delete m_cells;
     delete m_selectList;
 }
 
 View *ICNDocument::createView(ViewContainer *viewContainer, uint viewAreaId)
 {
     ICNView *icnView = new ICNView(this, viewContainer, viewAreaId);
     handleNewView(icnView);
     return icnView;
 }
 
 ItemGroup *ICNDocument::selectList() const
 {
     return m_selectList;
 }
 
 void ICNDocument::fillContextMenu(const QPoint &pos)
 {
     ItemDocument::fillContextMenu(pos);
     slotInitItemActions();
 }
 
 CNItem *ICNDocument::cnItemWithID(const QString &id)
 {
     return dynamic_cast<CNItem *>(itemWithID(id));
 }
 
 Connector *ICNDocument::connectorWithID(const QString &id)
 {
     const ConnectorList::iterator end = m_connectorList.end();
     for (ConnectorList::iterator it = m_connectorList.begin(); it != end; ++it) {
         if ((*it)->id() == id)
             return *it;
     }
     return nullptr;
 }
 
 FlowContainer *ICNDocument::flowContainer(const QPoint &pos)
 {
     KtlQCanvasItemList collisions = m_canvas->collisions(pos);
     FlowContainer *flowContainer = nullptr;
     int currentLevel = -1;
     const KtlQCanvasItemList::iterator end = collisions.end();
     for (KtlQCanvasItemList::iterator it = collisions.begin(); it != end; ++it) {
         if (FlowContainer *container = dynamic_cast<FlowContainer *>(*it)) {
             if (container->level() > currentLevel && !m_selectList->contains(container)) {
                 currentLevel = container->level();
                 flowContainer = container;
             }
         }
     }
 
     return flowContainer;
 }
 
 bool ICNDocument::canConnect(KtlQCanvasItem *qcanvasItem1, KtlQCanvasItem *qcanvasItem2) const
 {
     // Rough outline of what can and can't connect:
     // * At most three connectors to a node
     // * Can't have connectors going between different levels (e.g. can't have
     //   a connector coming outside a FlowContainer from inside).
     // * Can't have more than one route between any two nodes
     // * In all connections between nodes, must have at least one input and one
     //   output node at the ends.
 
     Node *startNode = dynamic_cast<Node *>(qcanvasItem1);
     Node *endNode = dynamic_cast<Node *>(qcanvasItem2);
 
     if ((startNode && startNode->numCon(true, false) > 2) || (endNode && endNode->numCon(true, false) > 2))
         return false;
 
     Connector *startConnector = dynamic_cast<Connector *>(qcanvasItem1);
     Connector *endConnector = dynamic_cast<Connector *>(qcanvasItem2);
 
     // FIXME: overload this instead of calling type().
     // Can't have T- or I- junction in PinMapEditor document
     if (type() == Document::dt_pinMapEditor && (startConnector || endConnector))
         return false;
 
     // Can't have I-junction in flowcode document
     if (type() == Document::dt_flowcode && startConnector && endConnector)
         return false;
 
     // BEGIN Change connectors to nodes
     Node *startNode1 = nullptr;
     Node *startNode2 = nullptr;
     if (startConnector) {
         startNode1 = startConnector->startNode();
         startNode2 = startConnector->endNode();
 
         if (!startNode1 || !startNode2)
             return false;
     } else if (!startNode)
         return false;
 
     Node *endNode1 = nullptr;
     Node *endNode2 = nullptr;
     if (endConnector) {
         endNode1 = endConnector->startNode();
         endNode2 = endConnector->endNode();
 
         if (!endNode1 || !endNode2)
             return false;
     } else if (!endNode)
         return false;
 
     Node *start[3];
     start[0] = startNode;
     start[1] = startNode1;
     start[2] = startNode2;
 
     Node *end[3];
     end[0] = endNode;
     end[1] = endNode1;
     end[2] = endNode2;
     // END Change connectors to nodes
 
     // BEGIN Check nodes aren't already connected
     for (unsigned i = 0; i < 3; i++) {
         for (unsigned j = 0; j < 3; j++) {
             if (start[i] && end[j] && start[i]->isConnected(end[j]))
                 return false;
         }
     }
     // END Check nodes aren't already connected together
 
     // BEGIN Simple level check
     for (unsigned i = 0; i < 3; i++) {
         for (unsigned j = 0; j < 3; j++) {
             if (start[i] && end[j] && start[i]->level() != end[j]->level())
                 return false;
         }
     }
     // END Simple level check
 
     // BEGIN Advanced level check
     CNItem *startParentItem[3];
     for (unsigned i = 0; i < 3; i++)
         startParentItem[i] = start[i] ? start[i]->parentItem() : nullptr;
 
     CNItem *endParentItem[3];
     for (unsigned i = 0; i < 3; i++)
         endParentItem[i] = end[i] ? end[i]->parentItem() : nullptr;
 
     Item *container[6] = {nullptr};
 
     for (unsigned i = 0; i < 3; i++) {
         if (startParentItem[i]) {
             int dl = start[i]->level() - startParentItem[i]->level();
             if (dl == 0)
                 container[i] = startParentItem[i]->parentItem();
             else if (dl == 1)
                 container[i] = startParentItem[i];
             else
                 qCCritical(KTL_LOG) << " start, i=" << i << " dl=" << dl;
         }
 
         if (endParentItem[i]) {
             int dl = end[i]->level() - endParentItem[i]->level();
             if (dl == 0)
                 container[i + 3] = endParentItem[i]->parentItem();
             else if (dl == 1)
                 container[i + 3] = endParentItem[i];
             else
                 qCCritical(KTL_LOG) << " end, i=" << i << " dl=" << dl;
         }
     }
 
     // Everything better well have the same container...
     for (unsigned i = 0; i < 6; ++i) {
         for (unsigned j = 0; j < i; ++j) {
             Node *n1 = i < 3 ? start[i] : end[i - 3];
             Node *n2 = j < 3 ? start[j] : end[j - 3];
             if (n1 && n2 && (container[i] != container[j]))
                 return false;
         }
     }
     // END Advanced level check
 
     // Well, it looks like we can, afterall, connect them...
     return true;
 }
 
 Connector *ICNDocument::createConnector(Node *startNode, Node *endNode, QPointList *pointList)
 {
     if (!canConnect(startNode, endNode))
         return nullptr;
 
     QPointList autoPoints;
     if (!pointList) {
         addAllItemConnectorPoints();
         ConRouter cr(this);
         cr.mapRoute(int(startNode->x()), int(startNode->y()), int(endNode->x()), int(endNode->y()));
         autoPoints = cr.pointList(false);
         pointList = &autoPoints;
     }
 
     Connector *con = nullptr;
 
     // Check if we need to swap the ends around, and create the connector
     // FIXME: dynamic_cast used
     if (dynamic_cast<OutputFlowNode *>(endNode) != nullptr)
         con = createConnector(endNode->id(), startNode->id(), pointList);
     else
         con = createConnector(startNode->id(), endNode->id(), pointList);
 
     bool startInGroup = deleteNodeGroup(startNode);
     bool endInGroup = deleteNodeGroup(endNode);
     if (startInGroup || endInGroup) {
         NodeGroup *ng = createNodeGroup(startNode);
         ng->addNode(endNode, true);
         ng->init();
     }
 
     flushDeleteList();
     return con;
 }
 
 NodeGroup *ICNDocument::createNodeGroup(Node *node)
 {
     if (!node || node->isChildNode())
         return nullptr;
 
     const GuardedNodeGroupList::iterator end = m_nodeGroupList.end();
     for (GuardedNodeGroupList::iterator it = m_nodeGroupList.begin(); it != end; ++it) {
         if (*it && (*it)->contains(node)) {
             return *it;
         }
     }
 
     NodeGroup *group = new NodeGroup(this);
     m_nodeGroupList += group;
     group->addNode(node, true);
 
     return group;
 }
 
 bool ICNDocument::deleteNodeGroup(Node *node)
 {
     if (!node || node->isChildNode())
         return false;
 
     const GuardedNodeGroupList::iterator end = m_nodeGroupList.end();
     for (GuardedNodeGroupList::iterator it = m_nodeGroupList.begin(); it != end; ++it) {
         if (*it && (*it)->contains(node)) {
             delete *it;
             m_nodeGroupList.erase(it);
             return true;
         }
     }
 
     return false;
 }
 
 void ICNDocument::slotRequestAssignNG()
 {
     requestEvent(ItemDocumentEvent::UpdateNodeGroups);
 }
 
 void ICNDocument::slotAssignNodeGroups()
 {
     const GuardedNodeGroupList::iterator nglEnd = m_nodeGroupList.end();
     for (GuardedNodeGroupList::iterator it = m_nodeGroupList.begin(); it != nglEnd; ++it)
         delete *it;
     m_nodeGroupList.clear();
 }
 
 void ICNDocument::getTranslatable(const ItemList &itemList, ConnectorList *fixedConnectors, ConnectorList *translatableConnectors, NodeGroupList *translatableNodeGroups)
 {
     ConnectorList tempCL1;
     if (!fixedConnectors)
         fixedConnectors = &tempCL1;
 
     ConnectorList tempCL2;
     if (!translatableConnectors)
         translatableConnectors = &tempCL2;
 
     NodeGroupList tempNGL;
     if (!translatableNodeGroups)
         translatableNodeGroups = &tempNGL;
 
     // We record the connectors attached to the items, and
     // the number of times an item in the list is connected to
     // it - i.e. 1 or 2. For those with 2, it is safe to update their
     // route as it simply involves shifting the route
     typedef QMap<Connector *, int> ConnectorMap;
     ConnectorMap fixedConnectorMap;
 
     // This list of nodes is built up, used for later in determining fixed NodeGroups
     NodeList itemNodeList;
 
     {
         const ItemList::const_iterator itemListEnd = itemList.end();
         for (ItemList::const_iterator it = itemList.begin(); it != itemListEnd; ++it) {
             CNItem *cnItem = dynamic_cast<CNItem *>(static_cast<Item *>(*it));
             if (!cnItem || !cnItem->canvas())
                 continue;
 
             NodeInfoMap nodeMap = cnItem->nodeMap();
 
             const NodeInfoMap::iterator nlEnd = nodeMap.end();
             for (NodeInfoMap::iterator nlIt = nodeMap.begin(); nlIt != nlEnd; ++nlIt) {
                 itemNodeList.append(nlIt.value().node);
             }
 
             ConnectorList conList = cnItem->connectorList();
             conList.removeAll(static_cast<Connector *>(nullptr));
 
             const ConnectorList::iterator clEnd = conList.end();
             for (ConnectorList::iterator clit = conList.begin(); clit != clEnd; ++clit) {
                 ConnectorMap::iterator cit = fixedConnectorMap.find(*clit);
                 if (cit != fixedConnectorMap.end()) {
                     cit.value()++;
                 } else
                     fixedConnectorMap[*clit] = 1;
             }
         }
     }
 
     // We now look through the NodeGroups to see if we have all the external
     // nodes for a given nodeGroup - if so, then the connectors in the fixed
     // connectors are ok to be moved
     ConnectorList fixedNGConnectors;
     {
         translatableNodeGroups->clear();
 
         const GuardedNodeGroupList::const_iterator end = m_nodeGroupList.end();
         for (GuardedNodeGroupList::const_iterator it = m_nodeGroupList.begin(); it != end; ++it) {
             NodeGroup *ng = *it;
             if (!ng)
                 continue;
 
             NodeList externalNodeList = ng->externalNodeList();
             const NodeList::iterator itemNodeListEnd = itemNodeList.end();
             for (NodeList::iterator inlIt = itemNodeList.begin(); inlIt != itemNodeListEnd; ++inlIt)
                 externalNodeList.removeAll(*inlIt);
 
             if (externalNodeList.isEmpty()) {
                 translatableNodeGroups->append(ng);
 
                 const ConnectorList ngConnectorList = ng->connectorList();
                 const ConnectorList::const_iterator ngConnectorListEnd = ngConnectorList.end();
                 for (ConnectorList::const_iterator ngclIt = ngConnectorList.begin(); ngclIt != ngConnectorListEnd; ++ngclIt) {
                     if (*ngclIt)
                         fixedNGConnectors += *ngclIt;
                 }
             }
         }
     }
 
     translatableConnectors->clear();
 
     const ConnectorMap::iterator fcEnd = fixedConnectorMap.end();
     for (ConnectorMap::iterator it = fixedConnectorMap.begin(); it != fcEnd; ++it) {
         // We allow it to be fixed if it is connected to two of the CNItems in the
         // select list, or is connected to itself (hence only appears to be connected to one,
         // but is fixed anyway
         Node *startNode = it.key()->endNode();
         Node *endNode = it.key()->startNode();
 
         if ((it.value() > 1) || (startNode && endNode && startNode->parentItem() == endNode->parentItem())) {
             translatableConnectors->append(const_cast<Connector *>(it.key()));
         } else if (!fixedNGConnectors.contains(it.key()) && !fixedConnectors->contains(it.key())) {
             fixedConnectors->append(it.key());
         }
     }
 }
 
 void ICNDocument::addCPenalty(int x, int y, int score)
 {
     if (m_cells->haveCell(x, y))
         m_cells->cell(x, y).Cpenalty += score;
 }
 
 void ICNDocument::createCellMap()
 {
     const ItemMap::iterator ciEnd = m_itemList.end();
     for (ItemMap::iterator it = m_itemList.begin(); it != ciEnd; ++it) {
         if (CNItem *cnItem = dynamic_cast<CNItem *>(*it))
             cnItem->updateConnectorPoints(false);
     }
 
     const ConnectorList::iterator conEnd = m_connectorList.end();
     for (ConnectorList::iterator it = m_connectorList.begin(); it != conEnd; ++it) {
         (*it)->updateConnectorPoints(false);
     }
 
     delete m_cells;
 
     m_cells = new Cells(canvas()->rect());
 
     for (ConnectorList::iterator it = m_connectorList.begin(); it != conEnd; ++it)
         (*it)->updateConnectorPoints(true);
 }
 
 int ICNDocument::gridSnap(int pos)
 {
     return snapToCanvas(pos);
 }
 
 QPoint ICNDocument::gridSnap(const QPoint &pos)
 {
     return QPoint(snapToCanvas(pos.x()), snapToCanvas(pos.y()));
 }
 
 void ICNDocument::appendDeleteList(KtlQCanvasItem *qcanvasItem)
 {
     if (!qcanvasItem || m_itemDeleteList.indexOf(qcanvasItem) != -1)
         return;
 
     m_itemDeleteList.append(qcanvasItem);
 
     /* the issue here is that we don't seem to have a generic call for all of these so we have to
     spend time figuring out which method to call...
     */
 
     if (Node *node = dynamic_cast<Node *>(qcanvasItem))
         node->removeNode();
     else if (Item *item = dynamic_cast<Item *>(qcanvasItem))
         item->removeItem();
     else {
         Connector *connector = dynamic_cast<Connector *>(qcanvasItem);
         if (!connector) {
             if (ConnectorLine *cl = dynamic_cast<ConnectorLine *>(qcanvasItem))
                 connector = cl->parent();
         }
 
         if (connector)
             connector->removeConnectorNoArg();
         else
             qCWarning(KTL_LOG) << "unrecognised KtlQCanvasItem " << qcanvasItem;
     }
 }
 
 bool ICNDocument::registerItem(KtlQCanvasItem *qcanvasItem)
 {
     if (!qcanvasItem)
         return false;
 
     if (!ItemDocument::registerItem(qcanvasItem)) {
         if (dynamic_cast<Node *>(qcanvasItem)) {
             /*
             m_nodeList[ node->id() ] = node;
             emit nodeAdded(node);
             */
             qCCritical(KTL_LOG) << "BUG: this member should have been overridden!";
 
         } else if (Connector *connector = dynamic_cast<Connector *>(qcanvasItem)) {
             m_connectorList.append(connector);
             emit connectorAdded(connector);
         } else {
             qCCritical(KTL_LOG) << "Unrecognised item";
             return false;
         }
     }
 
     requestRerouteInvalidatedConnectors();
 
     return true;
 }
 
 void ICNDocument::copy()
 {
     if (m_selectList->isEmpty())
         return;
 
     ItemDocumentData data(type());
 
     // We only want to copy the connectors who have all ends attached to something in the selection
     ConnectorList connectorList = m_selectList->connectors(false);
 
     typedef QMap<Node *, ConnectorList> NCLMap;
     NCLMap nclMap;
 
     ConnectorList::iterator end = connectorList.end();
     for (ConnectorList::iterator it = connectorList.begin(); it != end; ++it) {
         Node *startNode = (*it)->startNode();
         if (startNode && !startNode->isChildNode())
             nclMap[startNode].append(*it);
 
         Node *endNode = (*it)->endNode();
         if (endNode && !endNode->isChildNode())
             nclMap[endNode].append(*it);
     }
 
     NodeList nodeList;
     // Remove those connectors (and nodes) which are dangling on an orphan node
     NCLMap::iterator nclEnd = nclMap.end();
     for (NCLMap::iterator it = nclMap.begin(); it != nclEnd; ++it) {
         if (it.value().size() > 1)
             nodeList.append(it.key());
         else if (it.value().size() > 0)
             connectorList.removeAll(it.value().at(0));
     }
 
     data.addItems(m_selectList->items(false));
     data.addNodes(nodeList);
     data.addConnectors(connectorList);
 
     QApplication::clipboard()->setText(data.toXML(), QClipboard::Clipboard);
 }
 
 void ICNDocument::selectAll()
 {
     selectAllNodes();
 
     const ItemMap::iterator itemEnd = m_itemList.end();
     for (ItemMap::iterator itemIt = m_itemList.begin(); itemIt != itemEnd; ++itemIt) {
         if (*itemIt)
             select(*itemIt);
     }
 
     const ConnectorList::iterator conEnd = m_connectorList.end();
     for (ConnectorList::iterator connectorIt = m_connectorList.begin(); connectorIt != conEnd; ++connectorIt) {
         if (*connectorIt)
             select(*connectorIt);
     }
 }
 
 Item *ICNDocument::addItem(const QString &id, const QPoint &p, bool newItem)
 {
     if (!isValidItem(id))
         return nullptr;
 
     // First, we need to tell all containers to go to full bounding so that
     // we can detect a "collision" with them
     const ItemMap::iterator end = m_itemList.end();
     for (ItemMap::iterator it = m_itemList.begin(); it != end; ++it) {
         if (FlowContainer *flowContainer = dynamic_cast<FlowContainer *>(*it))
             flowContainer->setFullBounds(true);
     }
 
     KtlQCanvasItemList preCollisions = canvas()->collisions(p);
     for (ItemMap::iterator it = m_itemList.begin(); it != end; ++it) {
         if (FlowContainer *flowContainer = dynamic_cast<FlowContainer *>(*it))
             flowContainer->setFullBounds(false);
     }
 
     Item *item = itemLibrary()->createItem(id, this, newItem);
     if (!item)
         return nullptr;
 
     // Look through the CNItems at the given point (sorted by z-coordinate) for
     // a container item.
     FlowContainer *container = nullptr;
     const KtlQCanvasItemList::iterator pcEnd = preCollisions.end();
     for (KtlQCanvasItemList::iterator it = preCollisions.begin(); it != pcEnd && !container; ++it) {
         if (FlowContainer *flowContainer = dynamic_cast<FlowContainer *>(*it))
             container = flowContainer;
     }
 
     // We want to check it is not a special item first as
     // isValidItem may prompt the user about his bad choice
     if (!isValidItem(item)) {
         item->removeItem();
         flushDeleteList();
         return nullptr;
     }
 
     int x = int(p.x());
     int y = int(p.y());
 
     if (x < 16 || x > (canvas()->width()))
         x = 16;
     if (y < 16 || y > (canvas()->height()))
         y = 16;
 
     if (CNItem *cnItem = dynamic_cast<CNItem *>(item)) {
         cnItem->move(snapToCanvas(p.x()), snapToCanvas(p.y()));
 
         if (container)
             container->addChild(cnItem);
 
     } else
         item->move(x, y);
 
     item->show();
     requestStateSave();
     return item;
 }
 
 void ICNDocument::addAllItemConnectorPoints()
 {
     // FIXME The next line crashes sometimes??!
     const ItemMap::iterator ciEnd = m_itemList.end();
     for (ItemMap::iterator it = m_itemList.begin(); it != ciEnd; ++it) {
         if (CNItem *cnItem = dynamic_cast<CNItem *>(*it))
             cnItem->updateConnectorPoints(true);
     }
 }
 
 void ICNDocument::requestRerouteInvalidatedConnectors()
 {
     requestEvent(ItemDocumentEvent::RerouteInvalidatedConnectors);
 }
 
 void ICNDocument::rerouteInvalidatedConnectors()
 {
     // qApp->processEvents(QEventLoop::AllEvents, 300); // 2015.07.07 - do not process events, if it is not urgently needed; might generate crashes?
 
     // We only ever need to add the connector points for CNItem's when we're about to reroute...
     addAllItemConnectorPoints();
 
     // List of connectors which are to be determined to need rerouting (and whose routes aren't controlled by NodeGroups)
     ConnectorList connectorRerouteList;
 
     // For those connectors that are controlled by node groups
     NodeGroupList nodeGroupRerouteList;
 
     const ConnectorList::iterator connectorListEnd = m_connectorList.end();
     for (ConnectorList::iterator it = m_connectorList.begin(); it != connectorListEnd; ++it) {
         Connector *connector = *it;
         if (connector && connector->isVisible() && connector->startNode() && connector->endNode()) {
             // Perform a series of tests to see if the connector needs rerouting
             bool needsRerouting = false;
 
             // Test to see if we actually have any points
             const QPointList pointList = connector->connectorPoints();
 
             if (pointList.isEmpty())
                 needsRerouting = true;
 
             // Test to see if the route doesn't match up with the node positions at either end
             if (!needsRerouting) {
                 const QPoint listStart = pointList.first();
                 const QPoint listEnd = pointList.last();
                 const QPoint nodeStart = QPoint(int(connector->startNode()->x()), int(connector->startNode()->y()));
                 const QPoint nodeEnd = QPoint(int(connector->endNode()->x()), int(connector->endNode()->y()));
 
                 if (((listStart != nodeStart) || (listEnd != nodeEnd)) && ((listStart != nodeEnd) || (listEnd != nodeStart))) {
                     needsRerouting = true;
                 }
             }
 
             // Test to see if the route intersects any Items (we ignore if it is a manual route)
             if (!needsRerouting && !connector->usesManualPoints()) {
                 const KtlQCanvasItemList collisions = connector->collisions(true);
                 const KtlQCanvasItemList::const_iterator collisionsEnd = collisions.end();
                 for (KtlQCanvasItemList::const_iterator collisionsIt = collisions.begin(); (collisionsIt != collisionsEnd) && !needsRerouting; ++collisionsIt) {
                     if (dynamic_cast<Item *>(*collisionsIt))
                         needsRerouting = true;
                 }
             }
 
             if (needsRerouting) {
                 NodeGroup *nodeGroup = connector->nodeGroup();
 
                 if (!nodeGroup && !connectorRerouteList.contains(connector))
                     connectorRerouteList.append(connector);
                 else if (nodeGroup && !nodeGroupRerouteList.contains(nodeGroup))
                     nodeGroupRerouteList.append(nodeGroup);
             }
         }
     }
 
     // To allow proper rerouting, we want to start with clean routes for all of the invalidated connectors
     const NodeGroupList::iterator nodeGroupRerouteEnd = nodeGroupRerouteList.end();
     for (NodeGroupList::iterator it = nodeGroupRerouteList.begin(); it != nodeGroupRerouteEnd; ++it) {
         const ConnectorList contained = (*it)->connectorList();
         const ConnectorList::const_iterator end = contained.end();
         for (ConnectorList::const_iterator it = contained.begin(); it != end; ++it)
             (*it)->updateConnectorPoints(false);
     }
 
     const ConnectorList::iterator connectorRerouteEnd = connectorRerouteList.end();
     for (ConnectorList::iterator it = connectorRerouteList.begin(); it != connectorRerouteEnd; ++it)
         (*it)->updateConnectorPoints(false);
 
     // And finally, reroute the connectors
     for (NodeGroupList::iterator it = nodeGroupRerouteList.begin(); it != nodeGroupRerouteEnd; ++it)
         (*it)->updateRoutes();
 
     for (ConnectorList::iterator it = connectorRerouteList.begin(); it != connectorRerouteEnd; ++it)
         (*it)->rerouteConnector();
 
     for (ConnectorList::iterator it = m_connectorList.begin(); it != connectorListEnd; ++it) {
         if (*it)
             (*it)->updateDrawList();
     }
 }
 
 void ICNDocument::deleteSelection()
 {
     // End whatever editing mode we are in, as we don't want to start editing
     // something that is about to no longer exist...
     m_cmManager->cancelCurrentManipulation();
 
     if (m_selectList->isEmpty())
         return;
 
     m_selectList->deleteAllItems();
     flushDeleteList();
     setModified(true);
 
     // We need to emit this so that property widgets etc...
     // can clear themselves.
     emit selectionChanged();
 
     requestRerouteInvalidatedConnectors();
     requestStateSave();
 }
 
 ConnectorList ICNDocument::getCommonConnectors(const ItemList &list)
 {
     NodeList nodeList = getCommonNodes(list);
 
     // Now, get all the connectors, and remove the ones that don't have both end
     // nodes in the above generated list
     ConnectorList connectorList = m_connectorList;
     const ConnectorList::iterator connectorListEnd = connectorList.end();
     for (ConnectorList::iterator it = connectorList.begin(); it != connectorListEnd; ++it) {
         Connector *con = *it;
         if (!con || !nodeList.contains(con->startNode()) || !nodeList.contains(con->endNode())) {
             *it = nullptr;
         }
     }
     connectorList.removeAll(static_cast<Connector *>(nullptr));
     return connectorList;
 }
 
 NodeList ICNDocument::getCommonNodes(const ItemList &list)
 {
     NodeList nodeList;
 
     const ItemList::const_iterator listEnd = list.end();
     for (ItemList::const_iterator it = list.begin(); it != listEnd; ++it) {
         NodeInfoMap nodeMap;
         CNItem *cnItem = dynamic_cast<CNItem *>(static_cast<Item *>(*it));
 
         if (cnItem)
             nodeMap = cnItem->nodeMap();
 
         const NodeInfoMap::iterator nodeMapEnd = nodeMap.end();
         for (NodeInfoMap::iterator it = nodeMap.begin(); it != nodeMapEnd; ++it) {
             Node *node = it.value().node;
 
             if (!nodeList.contains(node))
                 nodeList += node;
 
             NodeGroup *ng = node->nodeGroup();
             if (ng) {
                 NodeList intNodeList = ng->internalNodeList();
                 const NodeList::iterator intNodeListEnd = intNodeList.end();
                 for (NodeList::iterator it = intNodeList.begin(); it != intNodeListEnd; ++it) {
                     Node *intNode = *it;
                     if (!nodeList.contains(intNode))
                         nodeList += intNode;
                 }
             }
         }
     }
 
     return nodeList;
 }
 
 void ICNDocument::unregisterUID(const QString &uid)
 {
     ItemDocument::unregisterUID(uid);
 }
 
 // END class ICNDocument
 
 DirCursor *DirCursor::m_self = nullptr;
 
 DirCursor::DirCursor()
 {
     initCursors();
 }
 
 DirCursor::~DirCursor()
 {
 }
 
 DirCursor *DirCursor::self()
 {
     if (!m_self)
         m_self = new DirCursor;
     return m_self;
 }
 
 void DirCursor::initCursors()
 {
     //  QCursor c(Qt::ArrowCursor);
     //  QBitmap bitmap = *c.bitmap();
     //  QBitmap mask = *c.mask();
     //  QPixmap pm( bitmap->width(), bitmap->height() );
     //  pm.setMask(mask);
     //  pm = c.pi
 }
 
 #include "moc_icndocument.cpp"