src/SketchPlugin/SketchPlugin_ConstraintMiddle.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 "SketchPlugin_ConstraintMiddle.h"
  21
  22 #include "SketcherPrs_Factory.h"
  23
  24 #include <GeomDataAPI_Point2D.h>
  25
  26 #include <ModelAPI_Validator.h>
  27 #include <ModelAPI_AttributeString.h>
  28
  29 #include <ModelAPI_Events.h>
  30 #include <SketchPlugin_Point.h>
  31 #include <SketchPlugin_Tools.h>
  32
  33 SketchPlugin_ConstraintMiddle::SketchPlugin_ConstraintMiddle()
  34 {
  35 }
  36
  37 // Create new point for Middle constraint
  38 void SketchPlugin_ConstraintMiddle::CreatePoint()
  39 {
  40   // Wait all objects being created, then send update events
  41   static Events_ID anUpdateEvent = Events_Loop::eventByName(EVENT_OBJECT_UPDATED);
  42   bool isUpdateFlushed = Events_Loop::loop()->isFlushed(anUpdateEvent);
  43   if (isUpdateFlushed)
  44     Events_Loop::loop()->setFlushed(anUpdateEvent, false);
  45
  46   auto aTrPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(POINT_REF_ID()));
  47
  48   if (!myPoint)
  49   {
  50     // Get last subfeature (constraintMiddle) for set as parent
  51     FeaturePtr aCurrentFeature = sketch()->subFeature(sketch()->numberOfSubs() - 1);
  52     keepCurrentFeature();
  53     myPoint = sketch()->addFeature(SketchPlugin_Point::ID());
  54     myPoint->boolean(SketchPlugin_SketchEntity::AUXILIARY_ID())->setValue(true);
  55     restoreCurrentFeature();
  56
  57     myPoint->reference(SketchPlugin_Point::PARENT_ID())->setValue(aCurrentFeature);
  58   }
  59
  60   AttributePoint2DPtr aCoord = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
  61     myPoint->attribute(SketchPlugin_Point::COORD_ID()));
  62   aCoord->setValue(aTrPnt->pnt());
  63
  64   myPoint->execute();
  65
  66   // Init second attr for constraint
  67   refattr(SketchPlugin_Constraint::ENTITY_B())->setObject(myPoint);
  68
  69
  70   if (isUpdateFlushed)
  71     Events_Loop::loop()->setFlushed(anUpdateEvent, true);
  72 }
  73
  74 void SketchPlugin_ConstraintMiddle::initAttributes()
  75 {
  76   data()->addAttribute(SketchPlugin_ConstraintMiddle::MIDDLE_TYPE(), ModelAPI_AttributeString::typeId());
  77
  78   data()->addAttribute(SketchPlugin_Constraint::ENTITY_A(), ModelAPI_AttributeRefAttr::typeId());
  79   data()->addAttribute(SketchPlugin_Constraint::ENTITY_B(), ModelAPI_AttributeRefAttr::typeId());
  80
  81   data()->addAttribute(POINT_REF_ID(), GeomDataAPI_Point2D::typeId());
  82
  83   ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), POINT_REF_ID());
  84 }
  85
  86 void SketchPlugin_ConstraintMiddle::execute()
  87 {
  88   if (string(MIDDLE_TYPE())->value() == MIDDLE_TYPE_BY_LINE())
  89   {
  90     std::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(POINT_REF_ID()))->setValue(1., 1.);
  91     AttributeRefAttrPtr aPointRes = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
  92       data()->attribute(SketchPlugin_Constraint::ENTITY_B()));
  93
  94     auto aRefAttr = data()->refattr(SketchPlugin_Constraint::ENTITY_A())->object();
  95     if (!aRefAttr.get())
  96       return;
  97
  98
  99     if (!attribute(ENTITY_B())->isInitialized())
 100       CreatePoint(); // Create new point
 101   }
 102 }
 103
 104 void SketchPlugin_ConstraintMiddle::attributeChanged(const std::string& theID)
 105 {
 106   if (theID == MIDDLE_TYPE())
 107   {
 108     SketchPlugin_Tools::resetAttribute(this, ENTITY_A());
 109     SketchPlugin_Tools::resetAttribute(this, ENTITY_B());
 110   }
 111   else if (theID == POINT_REF_ID())
 112   {
 113     if (!myPoint)
 114       return;
 115
 116     auto aTrPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(POINT_REF_ID()));
 117     AttributePoint2DPtr aCoord = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
 118       myPoint->attribute(SketchPlugin_Point::COORD_ID()));
 119     aCoord->setValue(aTrPnt->pnt());
 120
 121     myPoint->execute();
 122   }
 123 }
 124
 125 AISObjectPtr SketchPlugin_ConstraintMiddle::getAISObject(AISObjectPtr thePrevious)
 126 {
 127   if (!sketch())
 128     return thePrevious;
 129   AISObjectPtr anAIS = SketcherPrs_Factory::middleConstraint(this, sketch(),
 130                                                              thePrevious);
 131
 132   return anAIS;
 133 }