src/CollectionPlugin/CollectionPlugin_GroupMerge.cpp

   1 // Copyright (C) 2014-2023  CEA, EDF
   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 "CollectionPlugin_GroupMerge.h"
  21
  22 #include <ModelAPI_Data.h>
  23 #include <ModelAPI_Document.h>
  24 #include <ModelAPI_AttributeInteger.h>
  25 #include <ModelAPI_AttributeString.h>
  26 #include <ModelAPI_AttributeSelectionList.h>
  27 #include <ModelAPI_ResultGroup.h>
  28
  29 #include <GeomAPI_ShapeIterator.h>
  30 #include <GeomAlgoAPI_CompoundBuilder.h>
  31
  32 void CollectionPlugin_GroupMerge::initAttributes()
  33 {
  34   data()->addAttribute(CollectionPlugin_GroupMerge::LIST_ID(),
  35                        ModelAPI_AttributeSelectionList::typeId());
  36 }
  37
  38 static void explodeCompound(const GeomShapePtr& theCompound, ListOfShape& theSubs)
  39 {
  40   if (theCompound->isCompound()) {
  41     GeomAPI_ShapeIterator anIt(theCompound);
  42     for (; anIt.more(); anIt.next())
  43       explodeCompound(anIt.current(), theSubs);
  44   }
  45   else
  46     theSubs.push_back(theCompound);
  47 }
  48
  49 static void keepUniqueShapes(ListOfShape& theShapes)
  50 {
  51   ListOfShape::iterator anIt = theShapes.begin();
  52   while (anIt != theShapes.end()) {
  53     GeomShapePtr aCurrent = *anIt;
  54     ListOfShape::iterator anIt2 = theShapes.begin();
  55     for (; anIt2 != anIt; ++anIt2)
  56       if (aCurrent->isEqual(*anIt2))
  57         break;
  58     if (anIt2 != anIt) {
  59       // the same shape is found
  60       ListOfShape::iterator aRemoveIt = anIt++;
  61       theShapes.erase(aRemoveIt);
  62     }
  63     else
  64       ++anIt;
  65   }
  66 }
  67
  68 void CollectionPlugin_GroupMerge::execute(ResultGroupPtr & aGroup)
  69 {
  70   aGroup = document()->createGroup(data());
  71   // clean the result of the operation
  72   aGroup->store(GeomShapePtr());
  73
  74   // collect all unique sub-shapes
  75   GeomShapePtr aCompound = aGroup->shape();
  76   ListOfShape aSubs;
  77   explodeCompound(aCompound, aSubs);
  78   keepUniqueShapes(aSubs);
  79   aCompound = aSubs.empty() ? GeomShapePtr() : GeomAlgoAPI_CompoundBuilder::compound(aSubs);
  80   aGroup->store(aCompound);
  81
  82   // update the type of selection
  83   updateGroupType(LIST_ID());
  84 }