File indexing completed on 2024-04-21 05:43:56

 /***************************************************************************
  *   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 "flowcontainer.h"
 #include "canvasitemparts.h"
 #include "cells.h"
 #include "fpnode.h"
 #include "icndocument.h"
 #include "nodegroup.h"
 #include "resizeoverlay.h"
 
 #include <QIcon>
 #include <QPainter>
 
 #include <cmath>
 
 #include <ktechlab_debug.h>
 
 const int topStrip = 24;
 const int botStrip = 16;
 
 FlowContainer::FlowContainer(ICNDocument *_icnDocument, bool newItem, const QString &id)
     : FlowPart(_icnDocument, newItem, id)
 {
     m_ext_in = m_int_in = m_int_out = m_ext_out = nullptr;
     b_expanded = true;
 
     addButton("expandBtn", QRect(offsetX(), offsetY() + 24 - 11, 22, 22), QIcon::fromTheme("go-down"), true);
     m_rectangularOverlay = new RectangularOverlay(this, 8, 8);
     setSize(-160, -120, 320, 240);
 
     m_int_in = static_cast<FPNode *>(createNode(width() / 2, 8 + topStrip, 90, "int_in", Node::fp_out));
     m_int_out = static_cast<FPNode *>(createNode(width() / 2, height() - 8 - botStrip, 270, "int_out", Node::fp_in));
 
     button("expandBtn")->setState(true);
 
     updateAttachedPositioning();
     updateNodeLevels();
 }
 
 FlowContainer::~FlowContainer()
 {
 }
 
 void FlowContainer::updateNodeLevels()
 {
     FlowPart::updateNodeLevels();
 
     int l = level();
 
     if (m_ext_in)
         m_ext_in->setLevel(l);
     if (m_ext_out)
         m_ext_out->setLevel(l);
 
     if (m_int_in)
         m_int_in->setLevel(l + 1);
     if (m_int_out)
         m_int_out->setLevel(l + 1);
 }
 
 void FlowContainer::filterEndPartIDs(QStringList *ids)
 {
     // Remove *all* nodes except for very bottom one
     if (m_int_out) {
         ids->removeAll(m_int_out->childId());
     }
     if (m_ext_in) {
         ids->removeAll(m_ext_in->childId());
     }
     if (m_int_in) {
         ids->removeAll(m_int_in->childId());
     }
 }
 
 void FlowContainer::createTopContainerNode()
 {
     m_ext_in = static_cast<FPNode *>(createNode(width() / 2, -8, 270, "ext_in", Node::fp_in));
     m_ext_in->setLevel(level());
     m_rectangularOverlay->removeTopMiddle();
     updateAttachedPositioning();
 }
 
 void FlowContainer::createBotContainerNode()
 {
     m_ext_out = static_cast<FPNode *>(createNode(width() / 2, height() + 8, 90, "ext_out", Node::fp_out));
     m_ext_out->setLevel(level());
     m_rectangularOverlay->removeBotMiddle();
     updateAttachedPositioning();
 }
 
 QSize FlowContainer::minimumSize() const
 {
     return QSize(160, 64);
 }
 
 void FlowContainer::drawShape(QPainter &p)
 {
     if (b_deleted)
         return;
 
     if (!m_sizeRect.isValid())
         return;
 
     const int _x = int(x()) + offsetX();
     const int _y = int(y()) + offsetY();
 
     int col = 0xef + level() * 0x6;
     if (col > 0xff)
         col = 0xff;
     p.setBrush(QColor(col, 0xff, col));
     if (b_expanded) {
         p.setPen(Qt::DotLine);
         p.drawRoundedRect(_x, _y, width(), topStrip, 1500 / width(), 1500 / topStrip, Qt::RelativeSize);
         p.drawRoundedRect(_x, _y + height() - botStrip, width(), botStrip, 1500 / width(), 1500 / botStrip, Qt::RelativeSize);
     } else {
         p.setPen(QPen((isSelected() ? m_selectedCol : Qt::black), 1, Qt::SolidLine));
         p.drawRoundedRect(_x, _y, width(), topStrip, 1500 / width(), 1500 / topStrip, Qt::RelativeSize);
     }
 
     p.setPen(Qt::black);
     p.setFont(font());
     p.drawText(QRect(22 + _x + 8, _y, width() - 8, topStrip), Qt::AlignLeft | Qt::AlignVCenter, m_caption);
 
     if (b_expanded) {
         p.setPen(Qt::SolidLine);
         p.setBrush(Qt::NoBrush);
         p.drawRoundedRect(_x, _y, width(), height(), 1500 / width(), 1500 / height(), Qt::RelativeSize);
     }
 }
 
 void FlowContainer::childAdded(Item *child)
 {
     if (!child)
         return;
 
     FlowPart::childAdded(child);
 
     connect(this, &FlowContainer::moveBy, child, &Item::moveBy);
     child->setZ(ICNDocument::Z::Item + child->level());
 
     updateContainedVisibility();
 }
 
 void FlowContainer::childRemoved(Item *child)
 {
     FlowPart::childRemoved(child);
 
     if (!b_expanded)
         child->setVisible(true);
 
     disconnect(this, SIGNAL(movedBy(double, double)), child, SLOT(moveBy(double, double)));
 }
 
 void FlowContainer::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;
 
     int _x = int(x()) + offsetX();
     int _y = int(y()) + offsetY();
     int w = width();
     int h = b_expanded ? height() : topStrip;
 
     const int mult = add ? 1 : -1;
 
     // Top strip
     for (int y = _y; y < _y + 24; ++y) {
         for (int x = _x; x <= _x + w; x += 8) {
             if (cells->haveCellContaing(x, y)) {
                 cells->cellContaining(x, y).CIpenalty += mult * ICNDocument::hs_item;
             }
         }
     }
 
     // Bottom strip
     for (int y = _y + h - 16; y <= _y + h; ++y) {
         for (int x = _x; x <= _x + width(); x += 8) {
             if (cells->haveCellContaing(x, y)) {
                 cells->cellContaining(x, y).CIpenalty += mult * ICNDocument::hs_item;
             }
         }
     }
 
     // Left strip
     int x = _x;
     for (int y = _y + 24; y < _y + h - 16; y += 8) {
         if (cells->haveCellContaing(x, y)) {
             cells->cellContaining(x, y).CIpenalty += mult * ICNDocument::hs_item;
         }
     }
 
     // Right strip
     x = _x + width();
     for (int y = _y + 24; y < _y + h - 16; y += 8) {
         if (cells->haveCellContaing(x, y)) {
             cells->cellContaining(x, y).CIpenalty += mult * ICNDocument::hs_item;
         }
     }
 }
 
 void FlowContainer::setFullBounds(bool full)
 {
     if (full || !b_expanded) {
         QRect bounds = b_expanded ? m_sizeRect : QRect(m_sizeRect.x(), m_sizeRect.y(), m_sizeRect.width(), topStrip);
         setPoints(QPolygon(bounds));
         return;
     }
 
     //  qCDebug(KTL_LOG) << "width="<<width()<<" height="<<height();
 
     QPolygon pa(10);
     pa[0] = QPoint(0, 0);
     pa[1] = QPoint(width(), 0);
     pa[2] = QPoint(width(), height());
     pa[3] = QPoint(0, height());
     pa[4] = QPoint(0, 0);
     pa[5] = QPoint(8, topStrip);
     pa[6] = QPoint(8, height() - botStrip);
     pa[7] = QPoint(width() - 8, height() - botStrip);
     pa[8] = QPoint(width() - 8, topStrip);
     pa[9] = QPoint(8, topStrip);
     pa.translate(offsetX(), offsetY());
     setPoints(pa);
 }
 
 void FlowContainer::buttonStateChanged(const QString & /*id*/, bool state)
 {
     setExpanded(state);
 }
 
 bool FlowContainer::parentIsCollapsed() const
 {
     if (!p_parentItem)
         return false;
 
     FlowContainer *fc = dynamic_cast<FlowContainer *>(static_cast<Item *>((p_parentItem)));
     return !fc->isExpanded() || fc->parentIsCollapsed();
 }
 
 void FlowContainer::setSelected(bool yes)
 {
     if (yes == isSelected())
         return;
 
     FlowPart::setSelected(yes);
     m_rectangularOverlay->showResizeHandles(yes && isVisible());
 }
 
 void FlowContainer::setExpanded(bool expanded)
 {
     if (b_expanded == expanded)
         return;
 
     updateConnectorPoints(false);
 
     // Set this now, so that child items that we call know whether or not we actually are expanded
     b_expanded = expanded;
 
     updateContainedVisibility();
     updateAttachedPositioning();
 
     p_itemDocument->setModified(true);
     m_rectangularOverlay->setVisible(expanded);
     setFullBounds(false);
 
     bool nodesMoved = (m_ext_out != nullptr);
     if (nodesMoved)
         p_icnDocument->requestRerouteInvalidatedConnectors();
 
     p_icnDocument->requestStateSave();
 }
 
 void FlowContainer::postResize()
 {
     //  qCDebug(KTL_LOG) << "width="<<width();
     setFullBounds(false);
     FlowPart::postResize();
 }
 
 void FlowContainer::updateAttachedPositioning()
 {
     if (b_deleted)
         return;
 
     int _x = int(x()) + offsetX();
     int _y = int(y()) + offsetY();
     int w = int((std::floor(float((width() + 8) / 16))) * 16);
     int h = height();
 
     if (m_ext_in)
         m_ext_in->move(_x + w / 2, _y - 8);
 
     if (m_int_in)
         m_int_in->move(_x + w / 2, _y + 8 + topStrip);
 
     if (b_expanded) {
         if (m_int_out)
             m_int_out->move(_x + w / 2, _y + h - 8 - botStrip);
 
         if (m_ext_out)
             m_ext_out->move(_x + w / 2, _y + h - 8 + botStrip);
     } else {
         // (Note: dont really care where internal nodes are if not expanded)
 
         if (m_ext_out)
             m_ext_out->move(_x + w / 2, _y + 8 + topStrip);
     }
 
     button("expandBtn")->setGuiPartSize(22, 22);
     button("expandBtn")->move(int(x()) + offsetX() + 7, int(y()) + offsetY() + 1);
 }
 
 void FlowContainer::updateContainedVisibility()
 {
     if (b_deleted)
         return;
 
     if (m_ext_in)
         m_ext_in->setVisible(isVisible());
     if (m_int_in)
         m_int_in->setVisible(isVisible() && b_expanded);
     if (m_int_out)
         m_int_out->setVisible(isVisible() && b_expanded);
     if (m_ext_out)
         m_ext_out->setVisible(isVisible());
 
     const ItemList::iterator cEnd = m_children.end();
     for (ItemList::iterator it = m_children.begin(); it != cEnd; ++it) {
         if (*it)
             (*it)->setVisible(isVisible() && b_expanded);
     }
 
     m_rectangularOverlay->setVisible(isVisible() && b_expanded);
 
     NodeGroupList hidableNodeGroups;
     p_icnDocument->getTranslatable(children(true) += GuardedItem(this), nullptr, nullptr, &hidableNodeGroups);
 
     NodeGroupList::iterator hngEnd = hidableNodeGroups.end();
     for (NodeGroupList::iterator it = hidableNodeGroups.begin(); it != hngEnd; ++it)
         (*it)->setVisible(b_expanded);
 }
 
 void FlowContainer::setVisible(bool yes)
 {
     if (b_deleted) {
         FlowPart::setVisible(false);
         return;
     }
 
     FlowPart::setVisible(yes);
     updateContainedVisibility();
 }
 
 #include "moc_flowcontainer.cpp"