File indexing completed on 2025-04-20 08:13:27

 /***************************************************************************
  *   Copyright (C) 2003-2005 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 "ecnode.h"
 #include "circuitdocument.h"
 #include "component.h"
 #include "connector.h"
 #include "electronicconnector.h"
 #include "pin.h"
 
 #include <QPainter>
 
 #include <ktlconfig.h>
 #include <ktechlab_debug.h>
 
 ECNode::ECNode(ICNDocument *icnDocument, Node::node_type _type, int dir, const QPoint &pos, QString *_id)
     : Node(icnDocument, _type, dir, pos, _id)
 {
     m_prevV = 0;
     m_prevI = 0;
     m_pinPoint = nullptr;
     m_bShowVoltageBars = KTLConfig::showVoltageBars();
     m_bShowVoltageColor = KTLConfig::showVoltageColor();
 
     if (icnDocument)
         icnDocument->registerItem(this);
 
     m_pins.resize(1);
     m_pins[0] = new Pin(this);
 }
 
 ECNode::~ECNode()
 {
     if (m_pinPoint) {
         m_pinPoint->setCanvas(nullptr);
         delete m_pinPoint;
     }
 
     qDeleteAll(m_pins);
     m_pins.resize(0);
 }
 
 void ECNode::setNumPins(unsigned num)
 {
     unsigned oldNum = m_pins.size();
 
     if (num == oldNum)
         return;
 
     if (num > oldNum) {
         m_pins.resize(num);
         for (unsigned i = oldNum; i < num; i++)
             m_pins[i] = new Pin(this);
     } else {
         for (unsigned i = num; i < oldNum; i++)
             delete m_pins[i];
         m_pins.resize(num);
     }
 
     emit numPinsChanged(num);
 }
 
 Pin *ECNode::pin(unsigned num) const
 {
     return (int(num) < m_pins.size()) ? m_pins[num] : nullptr;
 }
 
 void ECNode::setNodeChanged()
 {
     if (!canvas() || numPins() != 1)
         return;
 
     Pin *pin = m_pins[0];
 
     double v = pin->voltage();
     double i = pin->current();
 
     if (v != m_prevV || i != m_prevI) {
         QRect r = boundingRect();
         //      r.setCoords( r.left()+(r.width()/2)-1, r.top()+(r.height()/2)-1, r.right()-(r.width()/2)+1, r.bottom()-(r.height()/2)+1 );
         canvas()->setChanged(r);
         m_prevV = v;
         m_prevI = i;
     }
 }
 
 void ECNode::setParentItem(CNItem *parentItem)
 {
     Node::setParentItem(parentItem);
 
     if (Component *component = dynamic_cast<Component *>(parentItem)) {
         connect(component, SIGNAL(elementDestroyed(Element *)), this, SLOT(removeElement(Element *)));
         // TODO fix compiler error: invalid application of ‘sizeof’ to incomplete type ‘Element’
         // connect(component, &Component::elementDestroyed, this, &ECNode::removeElement);
         connect(component, SIGNAL(switchDestroyed(Switch *)), this, SLOT(removeSwitch(Switch *)));
         // TODO fix compiler error: invalid application of ‘sizeof’ to incomplete type ‘Switch’
         // connect(component, &Component::switchDestroyed, this, &ECNode::removeSwitch);
     }
 }
 
 void ECNode::removeElement(Element *e)
 {
     for (int i = 0; i < m_pins.size(); i++)
         m_pins[i]->removeElement(e);
 }
 
 void ECNode::removeSwitch(Switch *sw)
 {
     for (int i = 0; i < m_pins.size(); i++)
         m_pins[i]->removeSwitch(sw);
 }
 
 // -- functionality from node.cpp --
 
 bool ECNode::isConnected(Node *node, NodeList *checkedNodes)
 {
     if (this == node)
         return true;
 
     bool firstNode = !checkedNodes;
     if (firstNode)
         checkedNodes = new NodeList();
 
     else if (checkedNodes->contains(this))
         return false;
 
     checkedNodes->append(this);
 
     const ConnectorList::const_iterator inputEnd = m_connectorList.end();
     for (ConnectorList::const_iterator it = m_connectorList.begin(); it != inputEnd; ++it) {
         Connector *connector = *it;
         if (connector) {
             Node *startNode = connector->startNode();
             if (startNode && startNode->isConnected(node, checkedNodes)) {
                 if (firstNode) {
                     delete checkedNodes;
                 }
                 return true;
             }
         }
     }
 
     if (firstNode) {
         delete checkedNodes;
     }
 
     return false;
 }
 
 void ECNode::checkForRemoval(Connector *connector)
 {
     removeConnector(connector);
     setNodeSelected(false);
 
     removeNullConnectors();
 
     if (!p_parentItem) {
         int conCount = m_connectorList.count();
         if (conCount < 1)
             removeNode();
     }
 }
 
 void ECNode::setVisible(bool yes)
 {
     if (isVisible() == yes)
         return;
 
     KtlQCanvasPolygon::setVisible(yes);
 
     const ConnectorList::iterator inputEnd = m_connectorList.end();
     for (ConnectorList::iterator it = m_connectorList.begin(); it != inputEnd; ++it) {
         Connector *connector = *it;
         if (connector) {
             if (isVisible())
                 connector->setVisible(true);
             else {
                 Node *node = connector->startNode();
                 connector->setVisible(node && node->isVisible());
             }
         }
     }
 }
 
 QPoint ECNode::findConnectorDivergePoint(bool *found)
 {
     // FIXME someone should check that this function is OK ... I just don't understand what it does
     bool temp;
     if (!found)
         found = &temp;
     *found = false;
 
     if (numCon(false, false) != 2)
         return QPoint(0, 0);
 
     QPointList p1;
     QPointList p2;
 
     int inSize = m_connectorList.count();
 
     const ConnectorList connectors = m_connectorList;
     const ConnectorList::const_iterator end = connectors.end();
 
     bool gotP1 = false;
     bool gotP2 = false;
 
     int at = -1;
     for (ConnectorList::const_iterator it = connectors.begin(); it != end && !gotP2; ++it) {
         at++;
         if (!(*it) || !(*it)->canvas())
             continue;
 
         if (gotP1) {
             p2 = (*it)->connectorPoints(at < inSize);
             gotP2 = true;
         } else {
             p1 = (*it)->connectorPoints(at < inSize);
             gotP1 = true;
         }
     }
 
     if (!gotP1 || !gotP2)
         return QPoint(0, 0);
 
     // If they are differing lengths, return the end of the shortest
     if (p1.size() < p2.size()) {
         *found = true;
         return p1.last();
     } else if (p2.size() < p1.size()) {
         *found = true;
         return p2.last();
     }
 
     Q_ASSERT(p1.size() == p2.size());
 
     for (int i = 1; i < qMin(p1.size(), p2.size()); ++i) {
         if (p1[i] != p2[i]) {
             *found = true;
             return p1[i - 1];
         }
     }
     return QPoint(0, 0);
 }
 
 void ECNode::addConnector(Connector *const connector)
 {
     if (!handleNewConnector(connector))
         return;
 
     m_connectorList.append(connector);
 }
 
 bool ECNode::handleNewConnector(Connector *connector)
 {
     if (!connector)
         return false;
 
     if (m_connectorList.contains(connector)) {
         qCWarning(KTL_LOG) << " Already have connector = " << connector;
         return false;
     }
 
     connect(this, &ECNode::removed, connector, &Connector::removeConnectorNodeArg);
     connect(connector, &Connector::removed, this, &ECNode::checkForRemoval);
     connect(connector, &Connector::selected, this, &ECNode::setNodeSelected);
 
     if (!isChildNode())
         p_icnDocument->slotRequestAssignNG();
 
     return true;
 }
 
 Connector *ECNode::createConnector(Node *node)
 {
     // FIXME dynamic_cast used
     Connector *connector = new ElectronicConnector(dynamic_cast<ECNode *>(node), dynamic_cast<ECNode *>(this), p_icnDocument);
     addConnector(connector);
 
     return connector;
 }
 
 void ECNode::removeNullConnectors()
 {
     m_connectorList.removeAll(static_cast<Connector *>(nullptr));
 }
 
 int ECNode::numCon(bool includeParentItem, bool includeHiddenConnectors) const
 {
     unsigned count = 0;
 
     const ConnectorList connectors = m_connectorList;
 
     ConnectorList::const_iterator end = connectors.end();
     for (ConnectorList::const_iterator it = connectors.begin(); it != end; ++it) {
         if (*it && (includeHiddenConnectors || (*it)->canvas()))
             count++;
     }
 
     if (isChildNode() && includeParentItem)
         count++;
 
     return count;
 }
 
 void ECNode::removeConnector(Connector *connector)
 {
     if (!connector)
         return;
 
     ConnectorList::iterator it;
 
     // it = m_connectorList.find(connector); // 2018.12.02
     int i = m_connectorList.indexOf(connector);
     it = (i == -1 ? m_connectorList.end() : (m_connectorList.begin() + i));
     if (it != m_connectorList.end()) {
         (*it)->removeConnectorNoArg();
         (*it) = nullptr;
     }
 }
 
 Connector *ECNode::getAConnector() const
 {
     if (!m_connectorList.isEmpty())
         return *m_connectorList.begin();
     else
         return nullptr;
 }
 
 #include "moc_ecnode.cpp"