File indexing completed on 2024-04-21 09:34:41

 /***************************************************************************
  *   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 "canvasitemparts.h"
 #include "cells.h"
 #include "component.h"
 #include "icndocument.h"
 #include "inputflownode.h"
 #include "itemdocumentdata.h"
 #include "junctionflownode.h"
 #include "junctionnode.h"
 #include "outputflownode.h"
 #include "pinnode.h"
 
 #include <QBitArray>
 #include <QPainter>
 
 #include <cmath>
 #include <cstdlib>
 
 #include <ktechlab_debug.h>
 
 CNItem::CNItem(ICNDocument *icnDocument, bool newItem, const QString &id)
     : Item(icnDocument, newItem, id)
     , CIWidgetMgr(icnDocument ? icnDocument->canvas() : nullptr, this)
     , p_icnDocument(icnDocument)
     , b_pointsAdded(false)
 {
     qCDebug(KTL_LOG) << " this=" << this;
 
     setZ(ICNDocument::Z::Item);
     setSelected(false);
 
     m_brushCol = QColor(0xf7, 0xf7, 0xff);
     m_selectedCol = QColor(101, 134, 192);
 
     setBrush(m_brushCol);
     setPen(QPen(Qt::black));
 }
 
 CNItem::~CNItem()
 {
     const TextMap::iterator textMapEnd = m_textMap.end();
     for (TextMap::iterator it = m_textMap.begin(); it != textMapEnd; ++it) {
         if (it.value())
             it.value()->setCanvas(nullptr);
 
         delete static_cast<Text *>(it.value());
     }
     m_textMap.clear();
 
     updateConnectorPoints(false);
 }
 
 bool CNItem::preResize(QRect sizeRect)
 {
     if ((std::abs(sizeRect.width()) < minimumSize().width()) || (std::abs(sizeRect.height()) < minimumSize().height()))
         return false;
 
     updateConnectorPoints(false);
     return true;
 }
 
 void CNItem::postResize()
 {
     updateAttachedPositioning();
 }
 
 void CNItem::setVisible(bool yes)
 {
     if (b_deleted) {
         Item::setVisible(false);
         return;
     }
 
     Item::setVisible(yes);
 
     const TextMap::iterator textMapEnd = m_textMap.end();
     for (TextMap::iterator it = m_textMap.begin(); it != textMapEnd; ++it) {
         it.value()->setVisible(yes);
     }
 
     const NodeInfoMap::iterator nodeMapEnd = m_nodeMap.end();
     for (NodeInfoMap::iterator it = m_nodeMap.begin(); it != nodeMapEnd; ++it) {
         it.value().node->setVisible(yes);
     }
 
     CNItem::setDrawWidgets(yes);
 
     if (!yes)
         updateConnectorPoints(false);
 }
 
 void CNItem::reparented(Item *oldParent, Item *newParent)
 {
     Item::reparented(oldParent, newParent);
     updateNodeLevels();
 }
 
 void CNItem::updateNodeLevels()
 {
     int l = level();
 
     // Tell our nodes about our level
     const NodeInfoMap::iterator nodeMapEnd = m_nodeMap.end();
     for (NodeInfoMap::iterator it = m_nodeMap.begin(); it != nodeMapEnd; ++it) {
         it.value().node->setLevel(l);
     }
 
     const ItemList::iterator end = m_children.end();
     for (ItemList::iterator it = m_children.begin(); it != end; ++it) {
         if (CNItem *cnItem = dynamic_cast<CNItem *>(static_cast<Item *>(*it)))
             cnItem->updateNodeLevels();
     }
 }
 
 ConnectorList CNItem::connectorList()
 {
     ConnectorList list;
 
     const NodeInfoMap::iterator nodeMapEnd = m_nodeMap.end();
     for (NodeInfoMap::iterator it = m_nodeMap.begin(); it != nodeMapEnd; ++it) {
         Node *node = p_icnDocument->nodeWithID(it.value().id);
         if (node) {
             ConnectorList nodeList = node->getAllConnectors();
             ConnectorList::iterator end = nodeList.end();
             for (ConnectorList::iterator it = nodeList.begin(); it != end; ++it) {
                 if (*it && !list.contains(*it)) {
                     list.append(*it);
                 }
             }
         }
     }
 
     return list;
 }
 
 void CNItem::removeItem()
 {
     if (b_deleted)
         return;
 
     const TextMap::iterator textMapEnd = m_textMap.end();
     for (TextMap::iterator it = m_textMap.begin(); it != textMapEnd; ++it)
         it.value()->setCanvas(nullptr);
 
     Item::removeItem();
     updateConnectorPoints(false);
 }
 
 void CNItem::restoreFromItemData(const ItemData &itemData)
 {
     Item::restoreFromItemData(itemData);
 
     updateConnectorPoints(false);
 
     {
         const BoolMap::const_iterator end = itemData.buttonMap.end();
         for (BoolMap::const_iterator it = itemData.buttonMap.begin(); it != end; ++it) {
             Button *b = button(it.key());
             if (b)
                 b->setState(it.value());
         }
     }
     {
         const IntMap::const_iterator end = itemData.sliderMap.end();
         for (IntMap::const_iterator it = itemData.sliderMap.begin(); it != end; ++it) {
             Slider *s = slider(it.key());
             if (s)
                 s->setValue(it.value());
         }
     }
 }
 
 ItemData CNItem::itemData() const
 {
     ItemData itemData = Item::itemData();
 
     const WidgetMap::const_iterator end = m_widgetMap.end();
     for (WidgetMap::const_iterator it = m_widgetMap.begin(); it != end; ++it) {
         if (Slider *slider = dynamic_cast<Slider *>(*it))
             itemData.sliderMap[slider->id()] = slider->value();
 
         else if (Button *button = dynamic_cast<Button *>(*it))
             itemData.buttonMap[button->id()] = button->state();
     }
 
     return itemData;
 }
 
 Node *CNItem::createNode(double _x, double _y, int orientation, const QString &name, uint type)
 {
     orientation %= 360;
     if (orientation < 0)
         orientation += 360;
 
     Node *node = nullptr;
 
     // TODO get rid of this switch statement...
     switch (type) {
     case Node::ec_pin:
         node = new PinNode(p_icnDocument, orientation, QPoint(0, 0));
         break;
     case Node::ec_junction:
         node = new JunctionNode(p_icnDocument, orientation, QPoint(0, 0));
         break;
     case Node::fp_junction:
         node = new JunctionFlowNode(p_icnDocument, orientation, QPoint(0, 0));
         break;
     case Node::fp_in:
         node = new InputFlowNode(p_icnDocument, orientation, QPoint(0, 0));
         break;
     case Node::fp_out:
         node = new OutputFlowNode(p_icnDocument, orientation, QPoint(0, 0));
         break;
     }
 
     node->setLevel(level());
 
     node->setParentItem(this);
     node->setChildId(name);
 
     NodeInfo info;
     info.id = node->id();
     info.node = node;
     info.x = _x;
     info.y = _y;
     info.orientation = orientation;
 
     m_nodeMap[name] = info;
 
     updateAttachedPositioning();
 
     return node;
 }
 
 bool CNItem::removeNode(const QString &name)
 {
     NodeInfoMap::iterator it = m_nodeMap.find(name);
     if (it == m_nodeMap.end()) {
         return false;
     }
     it.value().node->removeNode();
     p_icnDocument->flushDeleteList();
     m_nodeMap.erase(it);
     return true;
 }
 
 Node *CNItem::getClosestNode(const QPoint &pos)
 {
     // Work through the nodes, finding the one closest to the (x, y) position
     Node *shortestNode = nullptr;
     double shortestDistance = 1e10; // Nice large distance :-)
 
     const NodeInfoMap::iterator end = m_nodeMap.end();
     for (NodeInfoMap::iterator it = m_nodeMap.begin(); it != end; ++it) {
         Node *node = p_icnDocument->nodeWithID(it.value().id);
         if (node) {
             // Calculate the distance
             // Yeah, it's actually the distance squared; but it's all relative, so doesn't matter
             double distance = std::pow(node->x() - pos.x(), 2) + std::pow(node->y() - pos.y(), 2);
 
             if (distance < shortestDistance) {
                 shortestDistance = distance;
                 shortestNode = node;
             }
         }
     }
 
     return shortestNode;
 }
 
 void CNItem::updateAttachedPositioning()
 {
     if (b_deleted)
         return;
 
     // Actually, we don't do anything anymore...
 }
 
 void CNItem::updateZ(int baseZ)
 {
     Item::updateZ(baseZ);
 
     double _z = z();
 
     const NodeInfoMap::iterator nodeMapEnd = m_nodeMap.end();
     for (NodeInfoMap::iterator it = m_nodeMap.begin(); it != nodeMapEnd; ++it)
         it.value().node->setZ(_z + 0.5);
 
     const WidgetMap::iterator widgetMapEnd = m_widgetMap.end();
     for (WidgetMap::iterator it = m_widgetMap.begin(); it != widgetMapEnd; ++it)
         it.value()->setZ(_z + 0.5);
 
     const TextMap::iterator textMapEnd = m_textMap.end();
     for (TextMap::iterator it = m_textMap.begin(); it != textMapEnd; ++it)
         it.value()->setZ(_z + 0.5);
 }
 
 void CNItem::moveBy(double dx, double dy)
 {
     if (dx == 0 && dy == 0)
         return;
     updateConnectorPoints(false);
     Item::moveBy(dx, dy);
 
     setWidgetsPos(QPoint(int(x()), int(y())));
 }
 
 bool CNItem::mousePressEvent(const EventInfo &info)
 {
     bool accepted = Item::mousePressEvent(info);
     if (!accepted)
         accepted = CIWidgetMgr::mousePressEvent(info);
     if (accepted)
         setChanged();
     return accepted;
 }
 
 bool CNItem::mouseReleaseEvent(const EventInfo &info)
 {
     bool accepted = Item::mouseReleaseEvent(info);
     if (!accepted)
         accepted = CIWidgetMgr::mouseReleaseEvent(info);
     if (accepted)
         setChanged();
     return accepted;
 }
 
 bool CNItem::mouseDoubleClickEvent(const EventInfo &info)
 {
     bool accepted = Item::mouseDoubleClickEvent(info);
     if (!accepted)
         accepted = CIWidgetMgr::mouseDoubleClickEvent(info);
     if (accepted)
         setChanged();
     return accepted;
 }
 
 bool CNItem::mouseMoveEvent(const EventInfo &info)
 {
     bool accepted = Item::mouseMoveEvent(info);
     if (!accepted)
         accepted = CIWidgetMgr::mouseMoveEvent(info);
     if (accepted)
         setChanged();
     return accepted;
 }
 
 bool CNItem::wheelEvent(const EventInfo &info)
 {
     bool accepted = Item::wheelEvent(info);
     if (!accepted)
         accepted = CIWidgetMgr::wheelEvent(info);
     if (accepted)
         setChanged();
     return accepted;
 }
 
 void CNItem::enterEvent(QEvent *)
 {
     Item::enterEvent(nullptr);
     CIWidgetMgr::enterEvent(nullptr);
     setChanged();
 }
 
 void CNItem::leaveEvent(QEvent *)
 {
     Item::leaveEvent(nullptr);
     CIWidgetMgr::leaveEvent(nullptr);
     setChanged();
 }
 
 void CNItem::drawShape(QPainter &p)
 {
     if (!isVisible())
         return;
 
     //  initPainter(p);
     if (isSelected())
         p.setPen(m_selectedCol);
 
     p.drawPolygon(areaPoints());
     p.drawPolyline(areaPoints());
     //  deinitPainter(p);
 }
 
 void CNItem::initPainter(QPainter &p)
 {
     p.setRenderHint(QPainter::Antialiasing);
     if (isSelected())
         p.setPen(m_selectedCol);
 }
 
 void CNItem::updateConnectorPoints(bool add)
 {
     if (b_deleted || !isVisible())
         add = false;
 
     if (b_pointsAdded == add)
         return;
 
     b_pointsAdded = add;
 
     Cells *cells = p_icnDocument->cells();
     if (!cells)
         return;
 
     // Get translation matrix
     // Hackish...
     QTransform m;
     if (Component *c = dynamic_cast<Component *>(this))
         m = c->transMatrix(c->angleDegrees(), c->flipped(), int(x()), int(y()), false);
 
     // Convention used here: _UM = unmapped by both matrix and cell reference, _M = mapped
 
     const QPoint start_UM = QPoint(int(x() + offsetX()) - 8, int(y() + offsetY()) - 8);
     const QPoint end_UM = start_UM + QPoint(width() + 2 * 8, height() + 2 * 8);
 
     const QPoint start_M = roundDown(m.map(start_UM), 8);
     const QPoint end_M = roundDown(m.map(end_UM), 8);
 
     int sx_M = start_M.x();
     int ex_M = end_M.x();
 
     int sy_M = start_M.y();
     int ey_M = end_M.y();
 
     // Normalise start and end points
     if (sx_M > ex_M) {
         const int temp = sx_M;
         sx_M = ex_M;
         ex_M = temp;
     }
     if (sy_M > ey_M) {
         const int temp = sy_M;
         sy_M = ey_M;
         ey_M = temp;
     }
 
     ex_M++;
     ey_M++;
 
     const int mult = add ? 1 : -1;
 
     for (int x = sx_M; x < ex_M; x++) {
         for (int y = sy_M; y < ey_M; y++) {
             if (cells->haveCell(x, y)) {
                 if (x != sx_M && y != sy_M && x != (ex_M - 1) && y != (ey_M - 1)) {
                     cells->cell(x, y).CIpenalty += mult * ICNDocument::hs_item;
                 } else {
                     //                  (*cells)[x][y].CIpenalty += mult*ICNDocument::hs_item/2;
                     cells->cell(x, y).CIpenalty += mult * ICNDocument::hs_connector * 5;
                 }
             }
         }
     }
 
 #if 0
     // And subtract the positions of the node on the border
     NodeInfoMap::iterator end = m_nodeMap.end();
     for ( NodeInfoMap::iterator it = m_nodeMap.begin(); it != end; ++it )
     {
         const int x = (int)((it->second.node->x()-4)/cellSize);
         const int y = (int)((it->second.node->y()-4)/cellSize);
         if ( p_icnDocument->isValidCellReference(x,y) ) {
             (*cells)[x][y].CIpenalty -= mult*ICNDocument::hs_connector*5;
         }
     }
 #endif
 
     const TextMap::iterator textMapEnd = m_textMap.end();
     for (TextMap::iterator it = m_textMap.begin(); it != textMapEnd; ++it) {
         it.value()->updateConnectorPoints(add);
     }
     const WidgetMap::iterator widgetMapEnd = m_widgetMap.end();
     for (WidgetMap::iterator it = m_widgetMap.begin(); it != widgetMapEnd; ++it) {
         it.value()->updateConnectorPoints(add);
     }
 }
 
 Text *CNItem::addDisplayText(const QString &id, const QRect &pos, const QString &display, bool internal, int flags)
 {
     Text *text = nullptr;
     TextMap::iterator it = m_textMap.find(id);
     if (it != m_textMap.end()) {
         //      qCWarning(KTL_LOG) << "CNItem::addDisplayText: removing old text";
         delete it.value();
         m_textMap.erase(it);
     }
 
     text = new Text("", this, pos, canvas(), flags);
     text->setZ(z() + (internal ? 0.1 : -0.1));
 
     m_textMap[id] = text;
 
     // Calculate the correct size
     setDisplayText(id, display);
     text->show();
     return text;
 }
 
 void CNItem::setDisplayText(const QString &id, const QString &display)
 {
     TextMap::iterator it = m_textMap.find(id);
     if (it == m_textMap.end()) {
         qCCritical(KTL_LOG) << "CNItem::setDisplayText: Could not find text with id \"" << id << "\"";
         return;
     }
     it.value()->setText(display);
     updateAttachedPositioning();
 }
 
 void CNItem::removeDisplayText(const QString &id)
 {
     TextMap::iterator it = m_textMap.find(id);
     if (it == m_textMap.end()) {
         //      qCCritical(KTL_LOG) << "CNItem::removeDisplayText: Could not find text with id \""<<id<<"\"";
         return;
     }
     it.value()->updateConnectorPoints(false);
     delete it.value();
     m_textMap.erase(it);
 }
 
 QString CNItem::nodeId(const QString &internalNodeId)
 {
     NodeInfoMap::iterator it = m_nodeMap.find(internalNodeId);
     if (it == m_nodeMap.end())
         return "";
     else
         return it.value().id;
 }
 
 Node *CNItem::childNode(const QString &childId)
 {
     return p_icnDocument->nodeWithID(nodeId(childId));
 }
 
 NodeInfo::NodeInfo()
 {
     node = nullptr;
     x = 0.;
     y = 0.;
     orientation = 0;
 }
 
 #include "moc_cnitem.cpp"