src/genericgui/SceneElementaryNodeItem.cxx

   1 // Copyright (C) 2006-2022  CEA/DEN, EDF R&D
   2 //
   3 // This library is free software; you can redistribute it and/or
   4 // modify it under the terms of the GNU Lesser General Public
   5 // License as published by the Free Software Foundation; either
   6 // version 2.1 of the License, or (at your option) any later version.
   7 //
   8 // This library is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11 // Lesser General Public License for more details.
  12 //
  13 // You should have received a copy of the GNU Lesser General Public
  14 // License along with this library; if not, write to the Free Software
  15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  16 //
  17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  18 //
  19
  20 #include "SceneElementaryNodeItem.hxx"
  21 #include "SceneInPortItem.hxx"
  22 #include "SceneOutPortItem.hxx"
  23 #include "SceneComposedNodeItem.hxx"
  24 #include "guiObservers.hxx"
  25 #include "commandsProc.hxx"
  26 #include "Scene.hxx"
  27 #include "ElementaryNode.hxx"
  28 #include "InputPort.hxx"
  29 #include "OutputPort.hxx"
  30
  31 #include "QtGuiContext.hxx"
  32 #include "Menus.hxx"
  33
  34 #include "Resource.hxx"
  35
  36 #include <cassert>
  37
  38 //#define _DEVDEBUG_
  39 #include "YacsTrace.hxx"
  40
  41 using namespace std;
  42 using namespace YACS::ENGINE;
  43 using namespace YACS::HMI;
  44
  45 SceneElementaryNodeItem::SceneElementaryNodeItem(QGraphicsScene *scene, SceneItem *parent,
  46                                              QString label, Subject *subject)
  47   : SceneNodeItem(scene, parent, label, subject)
  48 {
  49   _maxPorts = 0;
  50   _width  = 2*Resource::Corner_Margin + 2*Resource::DataPort_Width + Resource::Space_Margin;
  51   _height = Resource::Header_Height + Resource::Border_Margin;
  52
  53   _brushColor   = Resource::ElementaryNode_brush;
  54   _hiBrushColor = Resource::ElementaryNode_hiBrush;
  55   _penColor     = Resource::ElementaryNode_pen;
  56   _hiPenColor   = Resource::ElementaryNode_hiPen;
  57 }
  58
  59 SceneElementaryNodeItem::~SceneElementaryNodeItem()
  60 {
  61 }
  62
  63 //! SceneElementaryNodeItem cannot be resized (only ComposedNodeItem can)
  64 void SceneElementaryNodeItem::setWidth(qreal width)
  65 {
  66 }
  67
  68 //! SceneElementaryNodeItem cannot be resized (only ComposedNodeItem can)
  69 void SceneElementaryNodeItem::setHeight(qreal height)
  70 {
  71 }
  72
  73 void SceneElementaryNodeItem::paint(QPainter *painter,
  74                           const QStyleOptionGraphicsItem *option,
  75                           QWidget *widget)
  76 {
  77   //DEBTRACE("SceneElementaryNodeItem::paint");
  78   painter->save();
  79   QPen pen(getPenColor());
  80   pen.setWidth(Resource::Thickness);
  81   painter->setPen(pen);
  82   painter->setBrush(getBrushColor());
  83   int w = _width  - 2*Resource::Border_Margin;
  84   int h = _height - 2*Resource::Border_Margin;
  85   painter->drawRect(QRectF(Resource::Border_Margin, Resource::Border_Margin, w, h));
  86   painter->restore();
  87 }
  88
  89 void SceneElementaryNodeItem::update(GuiEvent event, int type, Subject* son)
  90 {
  91   DEBTRACE("SceneElementaryNodeItem::update "<< eventName(event)<<" "<<type<<" "<<son);
  92   SceneNodeItem::update(event, type, son);
  93   SceneItem *item;
  94   switch (event)
  95     {
  96     case YACS::HMI::ADD:
  97       switch (type)
  98         {
  99         case YACS::HMI::INPUTPORT:
 100         case YACS::HMI::INPUTDATASTREAMPORT:
 101           item =  new SceneInPortItem(_scene,
 102                                       this,
 103                                       son->getName().c_str(),
 104                                       son);
 105           autoPosNewPort(item, _inPorts.size());
 106           _inPorts.push_back(item);
 107           if (Scene::_autoComputeLinks && !QtGuiContext::getQtCurrent()->isLoading())
 108             {
 109               YACS::HMI::SubjectProc* subproc = QtGuiContext::getQtCurrent()->getSubjectProc();
 110               SceneItem *item = QtGuiContext::getQtCurrent()->_mapOfSceneItem[subproc];
 111               SceneComposedNodeItem *proc = dynamic_cast<SceneComposedNodeItem*>(item);
 112               proc->rebuildLinks();
 113             }
 114           break;
 115         case YACS::HMI::OUTPUTPORT:
 116         case YACS::HMI::OUTPUTDATASTREAMPORT:
 117           item =  new SceneOutPortItem(_scene,
 118                                        this,
 119                                        son->getName().c_str(),
 120                                        son);
 121           autoPosNewPort(item, _outPorts.size());
 122           _outPorts.push_back(item);
 123           if (Scene::_autoComputeLinks && !QtGuiContext::getQtCurrent()->isLoading())
 124             {
 125               YACS::HMI::SubjectProc* subproc = QtGuiContext::getQtCurrent()->getSubjectProc();
 126               SceneItem *item = QtGuiContext::getQtCurrent()->_mapOfSceneItem[subproc];
 127               SceneComposedNodeItem *proc = dynamic_cast<SceneComposedNodeItem*>(item);
 128               proc->rebuildLinks();
 129             }
 130            break;
 131 //         default:
 132 //           DEBTRACE("SceneElementaryNodeItem::update() ADD, type not handled:" << type);
 133         }
 134       break;
 135     case YACS::HMI::REMOVE:
 136     case YACS::HMI::SYNCHRO:
 137       reorganize();
 138       break;
 139 //     default:
 140 //       DEBTRACE("SceneElementaryNodeItem::update(), event not handled:" << eventName(event));
 141     }
 142 }
 143
 144 void SceneElementaryNodeItem::autoPosNewPort(AbstractSceneItem *item, int nbPorts) {
 145   DEBTRACE("SceneElementaryNodeItem::autoPosNewPort "<< _label.toStdString());
 146   SceneInPortItem*   inPortItem = dynamic_cast<SceneInPortItem*>(item);
 147   SceneOutPortItem* outPortItem = dynamic_cast<SceneOutPortItem*>(item);
 148
 149   bool toShow = (_shownState == expandShown);
 150   if (toShow) {
 151     qreal x;
 152     if (inPortItem) {
 153       x = Resource::Corner_Margin;
 154       inPortItem->show();
 155     } else {
 156       x = Resource::Corner_Margin + Resource::DataPort_Width + Resource::Space_Margin;
 157       outPortItem->show();
 158     };
 159     qreal y = Resource::Header_Height + nbPorts * (Resource::DataPort_Height + Resource::Space_Margin);
 160
 161     if (_maxPorts <= nbPorts) {
 162       _maxPorts = nbPorts+1;
 163       _height  = Resource::Header_Height + Resource::Border_Margin;
 164       _height += _maxPorts * (Resource::DataPort_Height + Resource::Space_Margin);
 165       _incHeight = _height; // must just be more than the actual increment of height
 166       DEBTRACE("SceneElementaryNodeItem::autoPosNewPort _height=" << _height);
 167     };
 168
 169     item->setTopLeft(QPointF(x, y));
 170
 171   } else {
 172     _height = Resource::Header_Height + Resource::Border_Margin;
 173     qreal y = Resource::Corner_Margin;
 174     if (inPortItem) {
 175       item->setTopLeft(QPointF(Resource::Corner_Margin, y));
 176       inPortItem->hide();
 177     } else {
 178       item->setTopLeft(QPointF(Resource::Corner_Margin + Resource::DataPort_Width + Resource::Space_Margin, y));
 179       outPortItem->hide();
 180     };
 181   };
 182 }
 183
 184 void SceneElementaryNodeItem::popupMenu(QWidget *caller, const QPoint &globalPos)
 185 {
 186   ElementaryNodeMenu m;
 187   m.popupMenu(caller, globalPos);
 188 }
 189
 190 void SceneElementaryNodeItem::reorganizeShrinkExpand(ShrinkMode theShrinkMode)
 191 {
 192   DEBTRACE("SceneElementaryNodeItem::reorganizeShrinkExpand " << isExpanded() << " "  << _label.toStdString());
 193   if (theShrinkMode != CurrentNode)
 194     return;
 195   shrinkExpandRecursive(!isExpanded(), true, theShrinkMode);
 196   if (Scene::_autoComputeLinks)
 197     {
 198       SubjectProc* subproc = QtGuiContext::getQtCurrent()->getSubjectProc();
 199       SceneItem *item = QtGuiContext::getQtCurrent()->_mapOfSceneItem[subproc];
 200       SceneComposedNodeItem *proc = dynamic_cast<SceneComposedNodeItem*>(item);
 201       proc->rebuildLinks();
 202     }
 203 }
 204
 205 void SceneElementaryNodeItem::shrinkExpandRecursive(bool toExpand, bool fromHere, ShrinkMode theShrinkMode)
 206 {
 207   DEBTRACE("SceneElementaryNodeItem::shrinkExpandRecursive " << toExpand << " " << fromHere << " "  << isExpanded() << " " << _label.toStdString());
 208
 209   bool toChangeShrinkState = false;
 210   switch (theShrinkMode) {
 211   case CurrentNode:
 212     if (fromHere)
 213       toChangeShrinkState = true;
 214     break;
 215   case ChildrenNodes:
 216     if (fromHere)
 217       toChangeShrinkState = true;
 218     break;
 219   case ElementaryNodes:
 220     toChangeShrinkState = true;
 221     break;
 222   }
 223   if (toChangeShrinkState && toExpand != isExpanded())
 224     setExpanded(toExpand);
 225
 226   if (toExpand) {
 227     if (toChangeShrinkState) {
 228       _ancestorShrinked = false;
 229       _shownState = expandShown;
 230     } else {
 231       if (isExpanded())
 232         _shownState = expandShown;
 233       else
 234         _shownState = shrinkShown;
 235     }
 236   } else {
 237     if (fromHere || theShrinkMode==ElementaryNodes) {
 238       _shownState = shrinkShown;
 239     } else {
 240       _ancestorShrinked = true;
 241       _shownState = shrinkHidden;
 242     }
 243   }
 244
 245   if (_shownState == shrinkHidden) // shrink of ancestor
 246     setPos(0, 0);
 247   else
 248     setPos(_expandedPos);
 249
 250   reorganize();
 251 }
 252
 253 void SceneElementaryNodeItem::reorganize()
 254 {
 255   DEBTRACE("SceneElementaryNodeItem::reorganize() " << _label.toStdString());
 256
 257   SubjectNode* snode = dynamic_cast<SubjectNode*>(_subject);
 258   ElementaryNode* father = dynamic_cast<ElementaryNode*>(snode->getNode());
 259   YASSERT(father);
 260
 261   _maxPorts = 0;
 262
 263   list<InPort*> plisti = father->getSetOfInPort();
 264   list<InPort*>::iterator iti = plisti.begin();
 265   int nbPorts = 0;
 266   for (; iti != plisti.end(); ++iti)
 267     {
 268       Subject *sub = QtGuiContext::getQtCurrent()->_mapOfSubjectDataPort[(*iti)];
 269       SceneItem *item = QtGuiContext::getQtCurrent()->_mapOfSceneItem[sub];
 270       autoPosNewPort(item, nbPorts);
 271       nbPorts++;
 272     }
 273
 274   list<OutPort*> plisto = father->getSetOfOutPort();
 275   list<OutPort*>::iterator ito = plisto.begin();
 276   nbPorts = 0;
 277   for (; ito != plisto.end(); ++ito)
 278     {
 279       Subject *sub = QtGuiContext::getQtCurrent()->_mapOfSubjectDataPort[(*ito)];
 280       SceneItem *item = QtGuiContext::getQtCurrent()->_mapOfSceneItem[sub];
 281       autoPosNewPort(item, nbPorts);
 282       nbPorts++;
 283     }
 284   updateLinks();
 285 }
 286
 287 void SceneElementaryNodeItem::setShownState(shownState ss)
 288 {
 289   _shownState = ss;
 290   if (_shownState == shrinkHidden)
 291     {
 292       _ancestorShrinked = true;
 293       hide();
 294     }
 295   else
 296     {
 297       _ancestorShrinked = false;
 298       show();
 299     }
 300   reorganize();
 301 }
 302