src/SketchPlugin/SketchPlugin_Validators.cpp

   1 // Copyright (C) 2014-2019  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 "SketchPlugin_Validators.h"
  21
  22 #include "SketchPlugin_Arc.h"
  23 #include "SketchPlugin_Circle.h"
  24 #include "SketchPlugin_ConstraintCoincidence.h"
  25 #include "SketchPlugin_ConstraintDistance.h"
  26 #include "SketchPlugin_ConstraintRigid.h"
  27 #include "SketchPlugin_ConstraintTangent.h"
  28 #include "SketchPlugin_Fillet.h"
  29 #include "SketchPlugin_Line.h"
  30 #include "SketchPlugin_MacroArc.h"
  31 #include "SketchPlugin_MacroCircle.h"
  32 #include "SketchPlugin_MultiRotation.h"
  33 #include "SketchPlugin_Point.h"
  34 #include "SketchPlugin_Sketch.h"
  35 #include "SketchPlugin_Trim.h"
  36 #include "SketchPlugin_Tools.h"
  37
  38 #include "SketcherPrs_Tools.h"
  39
  40 #include <Events_InfoMessage.h>
  41
  42 #include <ModelAPI_Data.h>
  43 #include <ModelAPI_Validator.h>
  44 #include <ModelAPI_AttributeDouble.h>
  45 #include <ModelAPI_AttributeInteger.h>
  46 #include <ModelAPI_AttributeRefAttr.h>
  47 #include <ModelAPI_AttributeRefList.h>
  48 #include <ModelAPI_AttributeSelectionList.h>
  49 #include <ModelAPI_AttributeString.h>
  50 #include <ModelAPI_Session.h>
  51 #include <ModelAPI_Tools.h>
  52 #include <ModelAPI_ResultConstruction.h>
  53
  54 #include <ModelGeomAlgo_Point2D.h>
  55 #include <ModelGeomAlgo_Shape.h>
  56
  57 #include <GeomAlgoAPI_EdgeBuilder.h>
  58 #include <GeomAlgoAPI_ShapeTools.h>
  59
  60 #include <GeomAPI_Circ.h>
  61 #include <GeomAPI_Dir2d.h>
  62 #include <GeomAPI_Lin.h>
  63 #include <GeomAPI_Edge.h>
  64 #include <GeomAPI_Vertex.h>
  65 #include <GeomDataAPI_Point2D.h>
  66
  67 #include <algorithm>
  68 #include <cmath>
  69
  70 const double tolerance = 1.e-7;
  71
  72 bool SketchPlugin_DistanceAttrValidator::isValid(const AttributePtr& theAttribute,
  73                                                  const std::list<std::string>& theArguments,
  74                                                  Events_InfoMessage& theError) const
  75 {
  76   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
  77     theError = "The attribute with the %1 type is not processed";
  78     theError.arg(theAttribute->attributeType());
  79     return false;
  80   }
  81
  82   // there is a check whether the feature contains a point and a linear edge or two point values
  83   std::string aParamA = theArguments.front();
  84   SessionPtr aMgr = ModelAPI_Session::get();
  85   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
  86
  87   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
  88                                                                       (theAttribute);
  89   bool isObject = aRefAttr->isObject();
  90   if (!isObject) {
  91     // an attribute is a point. A point value is valid always for the distance
  92     return true;
  93   } else {
  94     // 1. check whether the references object is a linear
  95     ObjectPtr anObject = aRefAttr->object();
  96
  97     const ModelAPI_AttributeValidator* aShapeValidator =
  98       dynamic_cast<const ModelAPI_AttributeValidator*>(
  99       aFactory->validator("GeomValidators_ShapeType"));
 100     std::list<std::string> anArguments;
 101     anArguments.push_back("circle");
 102     Events_InfoMessage aCircleError;
 103     bool aShapeValid = aShapeValidator->isValid(aRefAttr, anArguments, aCircleError);
 104     // the circle line is not a valid case
 105     if (aShapeValid) {
 106       theError = "Circle can not be used in distance constraint";
 107       return false;
 108     }
 109
 110     anArguments.clear();
 111     anArguments.push_back("line");
 112     Events_InfoMessage aLineError;
 113     aShapeValid = aShapeValidator->isValid(aRefAttr, anArguments, aLineError);
 114     // if the attribute value is not a line, that means it is a vertex. A vertex is always valid
 115     if (aShapeValid) {
 116       FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 117       // If it is a line then we have to check that first attribute id not a line
 118       std::shared_ptr<SketchPlugin_Feature> aSFeature =
 119         std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
 120       SketchPlugin_Sketch* aSketch = aSFeature->sketch();
 121       std::shared_ptr<GeomAPI_Ax3> aPlane = SketchPlugin_Sketch::plane(aSketch);
 122       std::shared_ptr<GeomDataAPI_Point2D> aPoint = SketcherPrs_Tools::getFeaturePoint(
 123         aFeature->data(), aParamA, aPlane);
 124       if (!aPoint.get()) {
 125         theError = "One of parameters of distance constraint should be a point";
 126         return false;
 127       }
 128     }
 129   }
 130   return true;
 131 }
 132
 133 bool SketchPlugin_TangentAttrValidator::isValid(const AttributePtr& theAttribute,
 134                                                 const std::list<std::string>& theArguments,
 135                                                 Events_InfoMessage& theError) const
 136 {
 137   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 138     theError = "The attribute with the %1 type is not processed";
 139     theError.arg(theAttribute->attributeType());
 140     return false;
 141   }
 142
 143   // there is a check whether the feature contains a point and a linear edge or two point values
 144   std::string aParamA = theArguments.front();
 145   SessionPtr aMgr = ModelAPI_Session::get();
 146   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 147
 148   FeaturePtr anAttributeFeature =
 149     std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 150   AttributeRefAttrPtr aRefAttr =
 151     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 152
 153   bool isObject = aRefAttr->isObject();
 154   ObjectPtr anObject = aRefAttr->object();
 155   if (isObject && anObject.get()) {
 156     FeaturePtr aRefFea = ModelAPI_Feature::feature(anObject);
 157
 158     AttributeRefAttrPtr aOtherAttr = anAttributeFeature->data()->refattr(aParamA);
 159     ObjectPtr aOtherObject = aOtherAttr->object();
 160     FeaturePtr aOtherFea = ModelAPI_Feature::feature(aOtherObject);
 161     if (!aOtherFea)
 162       return true;
 163
 164     if (aRefFea->getKind() == SketchPlugin_Line::ID()) {
 165       if (aOtherFea->getKind() != SketchPlugin_Arc::ID() &&
 166           aOtherFea->getKind() != SketchPlugin_Circle::ID()) {
 167         theError = "It refers to a %1, but %2 is neither an %3 nor %4";
 168         theError.arg(SketchPlugin_Line::ID()).arg(aParamA)
 169             .arg(SketchPlugin_Arc::ID()).arg(SketchPlugin_Circle::ID());
 170         return false;
 171       }
 172     }
 173     else if (aRefFea->getKind() == SketchPlugin_Arc::ID() ||
 174              aRefFea->getKind() == SketchPlugin_Circle::ID()) {
 175       if (aOtherFea->getKind() != SketchPlugin_Line::ID() &&
 176           aOtherFea->getKind() != SketchPlugin_Arc::ID() &&
 177           aOtherFea->getKind() != SketchPlugin_Circle::ID()) {
 178         theError = "It refers to an %1, but %2 is not a %3 or an %4 or a %5";
 179         theError.arg(SketchPlugin_Arc::ID()).arg(aParamA)
 180             .arg(SketchPlugin_Line::ID()).arg(SketchPlugin_Arc::ID())
 181             .arg(SketchPlugin_Circle::ID());
 182         return false;
 183       }
 184     }
 185     else {
 186       theError = "It refers to %1, but should refer to %2 or %3 or %4";
 187       theError.arg(aRefFea->getKind()).arg(SketchPlugin_Line::ID())
 188           .arg(SketchPlugin_Arc::ID()).arg(SketchPlugin_Circle::ID());
 189       return false;
 190     }
 191     return true;
 192   }
 193   else {
 194     theError = "It uses an empty object";
 195     return false;
 196   }
 197
 198   return true;
 199 }
 200
 201 bool SketchPlugin_PerpendicularAttrValidator::isValid(const AttributePtr& theAttribute,
 202                                                       const std::list<std::string>& theArguments,
 203                                                       Events_InfoMessage& theError) const
 204 {
 205   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 206     theError = "The attribute with the %1 type is not processed";
 207     theError.arg(theAttribute->attributeType());
 208     return false;
 209   }
 210
 211   std::string aParamA = theArguments.front();
 212   SessionPtr aMgr = ModelAPI_Session::get();
 213   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 214
 215   FeaturePtr anOwner = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 216   AttributeRefAttrPtr aRefAttr =
 217       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 218
 219   bool isObject = aRefAttr->isObject();
 220   ObjectPtr anObject = aRefAttr->object();
 221   if (isObject && anObject.get()) {
 222     FeaturePtr aRefFea = ModelAPI_Feature::feature(anObject);
 223
 224     AttributeRefAttrPtr aOtherAttr = anOwner->refattr(aParamA);
 225     ObjectPtr aOtherObject = aOtherAttr->object();
 226     FeaturePtr aOtherFea = ModelAPI_Feature::feature(aOtherObject);
 227     if (!aOtherFea)
 228       return true;
 229
 230     // at least one feature should be a line
 231     if (aRefFea->getKind() != SketchPlugin_Line::ID() &&
 232         aOtherFea->getKind() != SketchPlugin_Line::ID()) {
 233       theError = "At least one feature should be a line";
 234       return false;
 235     }
 236   }
 237   else {
 238     theError = "It uses an empty object";
 239     return false;
 240   }
 241
 242   return true;
 243 }
 244
 245 bool SketchPlugin_NotFixedValidator::isValid(const AttributePtr& theAttribute,
 246                                              const std::list<std::string>& theArguments,
 247                                              Events_InfoMessage& theError) const
 248 {
 249   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 250     theError = "The attribute with the %1 type is not processed";
 251     theError.arg(theAttribute->attributeType());
 252     return false;
 253   }
 254
 255   std::shared_ptr<SketchPlugin_Feature> aFeature =
 256       std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
 257   if (!aFeature)
 258     return true;
 259
 260   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 261
 262   SketchPlugin_Sketch* aSketch = aFeature->sketch();
 263   int aNbFeatures = aSketch->numberOfSubs();
 264   for (int anInd = 0; anInd < aNbFeatures; anInd++) {
 265     FeaturePtr aSubFeature = aSketch->subFeature(anInd);
 266     if (aSubFeature->getKind() != SketchPlugin_ConstraintRigid::ID() || aSubFeature == aFeature)
 267       continue;
 268     AttributeRefAttrPtr aRAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 269         aSubFeature->attribute(SketchPlugin_ConstraintRigid::ENTITY_A()));
 270     if (aRefAttr->isObject()) {
 271       if (aRefAttr->object() == aRAttr->object()) {
 272         ObjectPtr anObject = aRefAttr->object();
 273         std::string aName = anObject.get() ? anObject->data()->name() : "";
 274         theError = "The object %1 has been already fixed.";
 275         theError.arg(aName);
 276         return false;
 277       }
 278     }
 279     else if (aRefAttr->attr() == aRAttr->attr()) {
 280       AttributePtr anAttribute = aRefAttr->attr();
 281       std::string aName = anAttribute.get() ? anAttribute->id() : "";
 282       theError = "The attribute %1 has been already fixed.";
 283       theError.arg(aName);
 284       return false;
 285     }
 286   }
 287   return true;
 288 }
 289
 290 bool SketchPlugin_EqualAttrValidator::isValid(const AttributePtr& theAttribute,
 291                                               const std::list<std::string>& theArguments,
 292                                               Events_InfoMessage& theError) const
 293 {
 294   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 295     theError = "The attribute with the %1 type is not processed";
 296     theError.arg(theAttribute->attributeType());
 297     return false;
 298   }
 299
 300   std::string aParamA = theArguments.front();
 301   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 302   AttributeRefAttrPtr aRefAttr[2];
 303   aRefAttr[0] = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 304   aRefAttr[1] = aFeature->data()->refattr(aParamA);
 305
 306   if (!aRefAttr[0]->isObject() || !aRefAttr[1]->isObject()) {
 307     theError = "Attributes can not be used in equal constraint";
 308     return false;
 309   }
 310
 311   std::string aType[2];
 312   std::list<std::string> anArguments;
 313   for (int i = 0; i < 2; i++) {
 314     ObjectPtr anObject = aRefAttr[i]->object();
 315     if (!anObject.get()) {
 316       theError = "An empty object is used.";
 317       return false;
 318     }
 319
 320     aFeature = ModelAPI_Feature::feature(anObject);
 321     if (!aFeature.get()) {
 322       theError = "An empty feature is used.";
 323       return false;
 324     }
 325
 326     aType[i] = aFeature->getKind();
 327     if (aFeature->getKind() != SketchPlugin_Line::ID() &&
 328         aFeature->getKind() != SketchPlugin_Circle::ID() &&
 329         aFeature->getKind() != SketchPlugin_Arc::ID()) {
 330       theError = "The %1 feature kind of attribute is wrong. It should be %2 or %3 or %4";
 331       theError.arg(aFeature->getKind()).arg(SketchPlugin_Line::ID())
 332           .arg(SketchPlugin_Circle::ID()).arg(SketchPlugin_Arc::ID());
 333       // wrong type of attribute
 334       return false;
 335     }
 336   }
 337
 338   if ((aType[0] == SketchPlugin_Line::ID() || aType[1] == SketchPlugin_Line::ID()) &&
 339       aType[0] != aType[1]) {
 340     theError = "Feature with kinds %1 and %2 can not be equal.";
 341     theError.arg(aType[0]).arg(aType[1]);
 342     return false;
 343   }
 344   return true;
 345 }
 346
 347 bool SketchPlugin_MirrorAttrValidator::isValid(const AttributePtr& theAttribute,
 348                                                const std::list<std::string>& theArguments,
 349                                                Events_InfoMessage& theError) const
 350 {
 351   if (theAttribute->attributeType() != ModelAPI_AttributeRefList::typeId()) {
 352     theError = "The attribute with the %1 type is not processed";
 353     theError.arg(theAttribute->attributeType());
 354     return false;
 355   }
 356
 357   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 358   AttributeRefListPtr aSelAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(theAttribute);
 359
 360   AttributeRefListPtr aRefListOfMirrored = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 361       aFeature->attribute(SketchPlugin_Constraint::ENTITY_C()));
 362   std::list<ObjectPtr> aMirroredObjects = aRefListOfMirrored->list();
 363
 364   for(int anInd = 0; anInd < aSelAttr->size(); anInd++) {
 365     ObjectPtr aSelObject = aSelAttr->object(anInd);
 366     std::string aName = aSelObject.get() ? aSelObject->data()->name() : "";
 367     std::list<ObjectPtr>::iterator aMirIter = aMirroredObjects.begin();
 368     for (; aMirIter != aMirroredObjects.end(); aMirIter++)
 369       if (aSelObject == *aMirIter) {
 370         theError = "The object %1 is a result of mirror";
 371         theError.arg(aName);
 372         return false;
 373       }
 374   }
 375   return true;
 376 }
 377
 378 bool SketchPlugin_CoincidenceAttrValidator::isValid(const AttributePtr& theAttribute,
 379                                                     const std::list<std::string>& theArguments,
 380                                                     Events_InfoMessage& theError) const
 381 {
 382   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 383     theError = "The attribute with the %1 type is not processed";
 384     theError.arg(theAttribute->attributeType());
 385     return false;
 386   }
 387
 388   // there is a check whether the feature contains a point and a linear edge or two point values
 389   std::string aParamA = theArguments.front();
 390   SessionPtr aMgr = ModelAPI_Session::get();
 391   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 392
 393   FeaturePtr aConstraint = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 394   AttributeRefAttrPtr aRefAttrA = aConstraint->data()->refattr(aParamA);
 395   if (!aRefAttrA) {
 396     theError = "The %1 attribute should be %2";
 397     theError.arg(aParamA).arg(ModelAPI_AttributeRefAttr::typeId());
 398     return false;
 399   }
 400
 401   AttributeRefAttrPtr aRefAttrB =
 402     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 403
 404   // first attribute is a point, it may coincide with any object
 405   if (!aRefAttrA->isObject())
 406     return true;
 407   else {
 408     ObjectPtr anObject = aRefAttrA->object();
 409     if (!anObject.get()) {
 410       theError = "%1 attribute has an empty object";
 411       theError.arg(aParamA);
 412       return false;
 413     }
 414     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrA->object());
 415     if (!aFeature.get()) {
 416       theError = "%1 attribute has an empty feature";
 417       theError.arg(aParamA);
 418       return false;
 419     }
 420
 421     if (aFeature->getKind() == SketchPlugin_Point::ID())
 422       return true;
 423   }
 424
 425   // second attribute is a point, it may coincide with any object
 426   if (!aRefAttrB->isObject())
 427     return true;
 428   else {
 429     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrB->object());
 430     if (!aFeature) {
 431       theError = "%1 attribute has an empty object";
 432       theError.arg(theAttribute->id());
 433       return false;
 434     }
 435     if (aFeature->getKind() == SketchPlugin_Point::ID())
 436       return true;
 437   }
 438   theError = "There is no an attribute filled by a point";
 439   return false;
 440 }
 441
 442
 443 bool SketchPlugin_CopyValidator::isValid(const AttributePtr& theAttribute,
 444                                          const std::list<std::string>& theArguments,
 445                                          Events_InfoMessage& theError) const
 446 {
 447   if (theAttribute->attributeType() != ModelAPI_AttributeRefList::typeId()) {
 448     theError = "The attribute with the %1 type is not processed";
 449     theError.arg(theAttribute->attributeType());
 450     return false;
 451   }
 452
 453   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 454   AttributeRefListPtr aSelAttr =
 455     std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(theAttribute);
 456
 457   AttributeRefListPtr aRefListOfInitial = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 458       aFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
 459   AttributeRefListPtr aRefListOfCopied = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 460       aFeature->attribute(SketchPlugin_Constraint::ENTITY_B()));
 461   std::list<ObjectPtr> anInitialObjects = aRefListOfInitial->list();
 462   std::list<ObjectPtr> aCopiedObjects = aRefListOfCopied->list();
 463
 464   std::list<ObjectPtr>::iterator anObjIter;
 465   for(int anInd = 0; anInd < aSelAttr->size(); anInd++) {
 466     ObjectPtr aSelObject = aSelAttr->object(anInd);
 467     anObjIter = anInitialObjects.begin();
 468     for (; anObjIter != anInitialObjects.end(); anObjIter++)
 469       if (aSelObject == *anObjIter)
 470         break;
 471     if (anObjIter != anInitialObjects.end())
 472       continue;
 473     anObjIter = aCopiedObjects.begin();
 474     for (; anObjIter != aCopiedObjects.end(); anObjIter++)
 475       if (aSelObject == *anObjIter) {
 476         std::string aName = aSelObject.get() ? aSelObject->data()->name() : "";
 477         theError = "The object %1 is a result of copy";
 478         theError.arg(aName);
 479         return false;
 480       }
 481   }
 482   return true;
 483 }
 484
 485 bool SketchPlugin_SolverErrorValidator::isValid(
 486   const std::shared_ptr<ModelAPI_Feature>& theFeature,
 487   const std::list<std::string>& theArguments,
 488   Events_InfoMessage& theError) const
 489 {
 490   AttributeStringPtr aAttributeString = theFeature->string(SketchPlugin_Sketch::SOLVER_ERROR());
 491
 492   if (!aAttributeString->value().empty()) {
 493     theError = aAttributeString->value();
 494     return false;
 495   }
 496
 497   return true;
 498 }
 499
 500 bool SketchPlugin_SolverErrorValidator::isNotObligatory(std::string theFeature,
 501                                                         std::string theAttribute)
 502 {
 503   return true;
 504 }
 505
 506 static bool hasSameTangentFeature(const std::set<AttributePtr>& theRefsList,
 507                                   const FeaturePtr theFeature)
 508 {
 509   for(std::set<AttributePtr>::const_iterator
 510       anIt = theRefsList.cbegin(); anIt != theRefsList.cend(); ++anIt) {
 511     std::shared_ptr<ModelAPI_Attribute> aAttr = (*anIt);
 512     FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aAttr->owner());
 513     if (!aFeature)
 514       continue;
 515     if (aFeature->getKind() == SketchPlugin_ConstraintTangent::ID()) {
 516       AttributeRefAttrPtr anAttrRefA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 517         aFeature->attribute(SketchPlugin_ConstraintTangent::ENTITY_A()));
 518       AttributeRefAttrPtr anAttrRefB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 519         aFeature->attribute(SketchPlugin_ConstraintTangent::ENTITY_B()));
 520       if(anAttrRefA.get()) {
 521         ResultPtr aResA = std::dynamic_pointer_cast<ModelAPI_Result>(anAttrRefA->object());
 522         if(aResA.get()) {
 523           DocumentPtr aDoc = aResA->document();
 524           if(aDoc.get()) {
 525             FeaturePtr aFeatureA = aDoc->feature(aResA);
 526             if(aFeatureA.get() && aFeatureA == theFeature) {
 527               return true;
 528             }
 529           }
 530         }
 531       }
 532       if(anAttrRefB.get()) {
 533         ResultPtr aResB = std::dynamic_pointer_cast<ModelAPI_Result>(anAttrRefB->object());
 534         if(aResB.get()) {
 535           DocumentPtr aDoc = aResB->document();
 536           if(aDoc.get()) {
 537             FeaturePtr aFeatureB = aDoc->feature(aResB);
 538             if(aFeatureB.get() && aFeatureB == theFeature) {
 539               return true;
 540             }
 541           }
 542         }
 543       }
 544     }
 545   }
 546   return false;
 547 }
 548
 549 static bool isPointPointCoincidence(const FeaturePtr& theCoincidence)
 550 {
 551   AttributeRefAttrPtr aRefAttr[2] = {
 552       theCoincidence->refattr(SketchPlugin_Constraint::ENTITY_A()),
 553       theCoincidence->refattr(SketchPlugin_Constraint::ENTITY_B())
 554   };
 555
 556   bool arePoints = true;
 557   for (int i = 0; i < 2 && arePoints; ++i) {
 558     if (aRefAttr[i]->isObject()) {
 559       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr[i]->object());
 560       arePoints = aFeature.get() && aFeature->getKind() == SketchPlugin_Point::ID();
 561     } else
 562       arePoints = aRefAttr[i]->attr().get() != NULL;
 563   }
 564   return arePoints;
 565 }
 566
 567 bool SketchPlugin_FilletVertexValidator::isValid(const AttributePtr& theAttribute,
 568                                                  const std::list<std::string>& theArguments,
 569                                                  Events_InfoMessage& theError) const
 570 {
 571   AttributeRefAttrPtr aPointRefAttr =
 572     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 573   if(!aPointRefAttr.get()) {
 574     theError = "Error: Point not selected.";
 575     return false;
 576   }
 577
 578   AttributePtr aPointAttribute = aPointRefAttr->attr();
 579   if (!aPointAttribute.get()) {
 580     theError = "Error: Bad point selected.";
 581     return false;
 582   }
 583   std::shared_ptr<GeomAPI_Pnt2d> aSelectedPnt =
 584     std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aPointAttribute)->pnt();
 585
 586   // Obtain constraint coincidence for the fillet point.
 587   const std::set<AttributePtr>& aRefsList = aPointAttribute->owner()->data()->refsToMe();
 588   FeaturePtr aConstraintCoincidence;
 589   for(std::set<AttributePtr>::const_iterator anIt = aRefsList.cbegin();
 590       anIt != aRefsList.cend(); ++anIt) {
 591     std::shared_ptr<ModelAPI_Attribute> aAttr = (*anIt);
 592     FeaturePtr aConstrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aAttr->owner());
 593     if (aConstrFeature->getKind() == SketchPlugin_ConstraintCoincidence::ID()) {
 594       if (!isPointPointCoincidence(aConstrFeature))
 595         continue;
 596
 597       AttributeRefAttrPtr anAttrRefA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 598         aConstrFeature->attribute(SketchPlugin_ConstraintCoincidence::ENTITY_A()));
 599       AttributeRefAttrPtr anAttrRefB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 600         aConstrFeature->attribute(SketchPlugin_ConstraintCoincidence::ENTITY_B()));
 601
 602       AttributePtr anAttrA = anAttrRefA->attr();
 603       if(aPointAttribute == anAttrA) {
 604         aConstraintCoincidence = aConstrFeature;
 605         break;
 606       }
 607
 608       AttributePtr anAttrB = anAttrRefB->attr();
 609       if(aPointAttribute == anAttrB) {
 610         aConstraintCoincidence = aConstrFeature;
 611         break;
 612       }
 613     }
 614   }
 615
 616   if(!aConstraintCoincidence.get()) {
 617     theError = "Error: one of the selected point does not have coicidence.";
 618     return false;
 619   }
 620
 621   // Get coincides from constraint.
 622   std::set<FeaturePtr> aCoinsides;
 623   SketchPlugin_Tools::findCoincidences(aConstraintCoincidence,
 624                                         SketchPlugin_ConstraintCoincidence::ENTITY_A(),
 625                                         aCoinsides,
 626                                         true);
 627   SketchPlugin_Tools::findCoincidences(aConstraintCoincidence,
 628                                         SketchPlugin_ConstraintCoincidence::ENTITY_B(),
 629                                         aCoinsides,
 630                                         true);
 631
 632   // Remove points and external lines from set of coincides.
 633   std::set<FeaturePtr> aNewSetOfCoincides;
 634   for(std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 635       anIt != aCoinsides.end(); ++anIt) {
 636     std::shared_ptr<SketchPlugin_SketchEntity> aSketchEntity =
 637       std::dynamic_pointer_cast<SketchPlugin_SketchEntity>(*anIt);
 638     if(aSketchEntity.get() && (aSketchEntity->isCopy() || aSketchEntity->isExternal())) {
 639       continue;
 640     }
 641     if((*anIt)->getKind() != SketchPlugin_Line::ID() &&
 642         (*anIt)->getKind() != SketchPlugin_Arc::ID()) {
 643           continue;
 644     }
 645     if((*anIt)->getKind() == SketchPlugin_Arc::ID()) {
 646       AttributePtr anArcCenter = (*anIt)->attribute(SketchPlugin_Arc::CENTER_ID());
 647       std::shared_ptr<GeomAPI_Pnt2d> anArcCenterPnt =
 648         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anArcCenter)->pnt();
 649       double aDistSelectedArcCenter = aSelectedPnt->distance(anArcCenterPnt);
 650       if(aDistSelectedArcCenter < tolerance) {
 651         continue;
 652       }
 653     }
 654     aNewSetOfCoincides.insert(*anIt);
 655   }
 656   aCoinsides = aNewSetOfCoincides;
 657
 658   // If we still have more than two coincides remove auxilary entities from set of coincides.
 659   if(aCoinsides.size() > 2) {
 660     aNewSetOfCoincides.clear();
 661     for(std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 662         anIt != aCoinsides.end(); ++anIt) {
 663       if(!(*anIt)->boolean(SketchPlugin_SketchEntity::AUXILIARY_ID())->value()) {
 664         aNewSetOfCoincides.insert(*anIt);
 665       }
 666     }
 667     aCoinsides = aNewSetOfCoincides;
 668   }
 669
 670   if(aCoinsides.size() != 2) {
 671     theError = "Error: One of the selected points does not have two suitable edges for fillet.";
 672     return false;
 673   }
 674
 675   // Check that selected edges don't have tangent constraint.
 676   std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 677   FeaturePtr aFirstFeature = *anIt++;
 678   FeaturePtr aSecondFeature = *anIt;
 679   const std::set<AttributePtr>& aFirstFeatureRefsList = aFirstFeature->data()->refsToMe();
 680   if(hasSameTangentFeature(aFirstFeatureRefsList, aSecondFeature)) {
 681     theError = "Error: Edges in selected point has tangent constraint.";
 682     return false;
 683   }
 684
 685   std::list<ResultPtr> aFirstResults = aFirstFeature->results();
 686   for(std::list<ResultPtr>::iterator aResIt = aFirstResults.begin();
 687       aResIt != aFirstResults.end(); ++aResIt) {
 688     ResultPtr aRes = *aResIt;
 689     const std::set<AttributePtr>& aResRefsList = aRes->data()->refsToMe();
 690     if(hasSameTangentFeature(aResRefsList, aSecondFeature)) {
 691       theError = "Error: Edges in selected point has tangent constraint.";
 692       return false;
 693     }
 694   }
 695
 696   // Check the features are not tangent
 697   std::shared_ptr<GeomAPI_Shape> aFirstShape = aFirstFeature->lastResult()->shape();
 698   std::shared_ptr<GeomAPI_Shape> aSecondShape = aSecondFeature->lastResult()->shape();
 699   if (!aFirstShape || !aFirstShape->isEdge() ||
 700       !aSecondShape || !aSecondShape->isEdge()) {
 701     theError = "Error: At least on of the features is not an edge";
 702     return false;
 703   }
 704
 705   std::shared_ptr<GeomAPI_Edge> anEdge1 = std::dynamic_pointer_cast<GeomAPI_Edge>(aFirstShape);
 706   std::shared_ptr<GeomAPI_Edge> anEdge2 = std::dynamic_pointer_cast<GeomAPI_Edge>(aSecondShape);
 707
 708   static const double TOL = 1.e-7;
 709   if (anEdge1->isLine() && anEdge2->isLine()) {
 710     // Check that lines not collinear
 711     std::shared_ptr<GeomAPI_Dir> aDir1 = anEdge1->line()->direction();
 712     std::shared_ptr<GeomAPI_Dir> aDir2 = anEdge2->line()->direction();
 713     double aCross = aDir1->cross(aDir2)->squareModulus();
 714     if (aCross < TOL * TOL)
 715       return false;
 716   } else if (anEdge1->isArc() && anEdge2->isArc()) {
 717     // check the circles are not tangent
 718     std::shared_ptr<GeomAPI_Circ> aCirc1 = anEdge1->circle();
 719     std::shared_ptr<GeomAPI_Circ> aCirc2 = anEdge2->circle();
 720     double aDistCC = aCirc1->center()->distance(aCirc2->center());
 721     double aRadSum = aCirc1->radius() + aCirc2->radius();
 722     double aRadDiff = fabs(aCirc1->radius() - aCirc2->radius());
 723     if (fabs(aDistCC - aRadSum) < TOL || fabs(aDistCC - aRadDiff) < TOL)
 724       return false;
 725   } else {
 726     // check whether line and arc are tangent
 727     std::shared_ptr<GeomAPI_Circ> aCirc;
 728     std::shared_ptr<GeomAPI_Lin> aLine;
 729     if (anEdge1->isLine()) {
 730       aLine = anEdge1->line();
 731       aCirc = anEdge2->circle();
 732     } else {
 733       aCirc = anEdge1->circle();
 734       aLine = anEdge2->line();
 735     }
 736
 737     double aDistCL = aLine->distance(aCirc->center());
 738     if (fabs(aDistCL - aCirc->radius()) < TOL)
 739       return false;
 740   }
 741
 742   return true;
 743 }
 744
 745 bool SketchPlugin_MiddlePointAttrValidator::isValid(const AttributePtr& theAttribute,
 746                                                     const std::list<std::string>& theArguments,
 747                                                     Events_InfoMessage& theError) const
 748 {
 749   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 750     theError = "The attribute with the %1 type is not processed";
 751     theError.arg(theAttribute->attributeType());
 752     return false;
 753   }
 754
 755   // there is a check whether the feature contains a point and a linear edge or two point values
 756   std::string aParamA = theArguments.front();
 757   SessionPtr aMgr = ModelAPI_Session::get();
 758   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 759
 760   FeaturePtr anAttributeFeature =
 761     std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 762   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 763   AttributeRefAttrPtr anOtherAttr = anAttributeFeature->data()->refattr(aParamA);
 764
 765   AttributeRefAttrPtr aRefAttrs[2] = {aRefAttr, anOtherAttr};
 766   int aNbPoints = 0;
 767   int aNbLines = 0;
 768   for (int i = 0; i < 2; ++i) {
 769     if (!aRefAttrs[i]->isObject())
 770       ++aNbPoints;
 771     else {
 772       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrs[i]->object());
 773       if (!aFeature) {
 774         if (aNbPoints + aNbLines != 0)
 775           return true;
 776         else continue;
 777       }
 778
 779       if (aFeature->getKind() == SketchPlugin_Point::ID())
 780         ++aNbPoints;
 781       else if (aFeature->getKind() == SketchPlugin_Line::ID())
 782         ++aNbLines;
 783     }
 784   }
 785
 786   if (aNbPoints != 1 || aNbLines != 1) {
 787     theError = "Middle point constraint allows points and lines only";
 788     return false;
 789   }
 790   return true;
 791 }
 792
 793 bool SketchPlugin_ArcTangentPointValidator::isValid(const AttributePtr& theAttribute,
 794                                                     const std::list<std::string>& /*theArguments*/,
 795                                                     Events_InfoMessage& theError) const
 796 {
 797   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 798     theError = "The attribute with the %1 type is not processed";
 799     theError.arg(theAttribute->attributeType());
 800     return false;
 801   }
 802   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 803   AttributePtr anAttr = aRefAttr->attr();
 804   if (!anAttr) {
 805     theError = "The attribute %1 should be a point";
 806     theError.arg(theAttribute->id());
 807     return false;
 808   }
 809
 810   FeaturePtr anAttrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(anAttr->owner());
 811   const std::string& aFeatureType = anAttrFeature->getKind();
 812   if (aFeatureType == SketchPlugin_Arc::ID()) {
 813     // selected point should not be a center of arc
 814     const std::string& aPntId = anAttr->id();
 815     if (aPntId != SketchPlugin_Arc::START_ID() && aPntId != SketchPlugin_Arc::END_ID()) {
 816       theError = "The attribute %1 is not supported";
 817       theError.arg(aPntId);
 818       return false;
 819     }
 820   }
 821   else if (aFeatureType == SketchPlugin_Line::ID()) {
 822     // selected point should be bound point of line
 823     const std::string& aPntId = anAttr->id();
 824     if (aPntId != SketchPlugin_Line::START_ID() && aPntId != SketchPlugin_Line::END_ID()) {
 825       theError = "The attribute %1 is not supported";
 826       theError.arg(aPntId);
 827       return false;
 828     }
 829   }
 830   else {
 831     theError = "Unable to build tangent arc on %1";
 832     theError.arg(anAttrFeature->getKind());
 833     return false;
 834   }
 835
 836   return true;
 837 }
 838
 839 bool SketchPlugin_ArcTransversalPointValidator::isValid(
 840     const AttributePtr& theAttribute,
 841     const std::list<std::string>& /*theArguments*/,
 842     Events_InfoMessage& theError) const
 843 {
 844   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 845     theError = "The attribute with the %1 type is not processed";
 846     theError.arg(theAttribute->attributeType());
 847     return false;
 848   }
 849   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 850   AttributePtr anAttr = aRefAttr->attr();
 851   if (!anAttr) {
 852     theError = "The attribute %1 should be a point";
 853     theError.arg(theAttribute->id());
 854     return false;
 855   }
 856
 857   FeaturePtr anAttrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(anAttr->owner());
 858   const std::string& aFeatureType = anAttrFeature->getKind();
 859   if (aFeatureType == SketchPlugin_Line::ID()) {
 860     // selected point should be bound point of line
 861     const std::string& aPntId = anAttr->id();
 862     if (aPntId != SketchPlugin_Line::START_ID() && aPntId != SketchPlugin_Line::END_ID()) {
 863       theError = "The attribute %1 is not supported";
 864       theError.arg(aPntId);
 865       return false;
 866     }
 867   }
 868   else {
 869     theError = "Unable to build transversal arc on %1";
 870     theError.arg(anAttrFeature->getKind());
 871     return false;
 872   }
 873
 874   return true;
 875 }
 876
 877 bool SketchPlugin_IntersectionValidator::isValid(const AttributePtr& theAttribute,
 878                                                  const std::list<std::string>& theArguments,
 879                                                  Events_InfoMessage& theError) const
 880 {
 881   if (theAttribute->attributeType() != ModelAPI_AttributeSelection::typeId()) {
 882     theError = "The attribute with the %1 type is not processed";
 883     theError.arg(theAttribute->attributeType());
 884     return false;
 885   }
 886   AttributeSelectionPtr anExternalAttr =
 887       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(theAttribute);
 888   std::shared_ptr<GeomAPI_Edge> anEdge;
 889   if (anExternalAttr && anExternalAttr->value() && anExternalAttr->value()->isEdge()) {
 890     anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(anExternalAttr->value()));
 891   } else if(anExternalAttr->context() && anExternalAttr->context()->shape() &&
 892             anExternalAttr->context()->shape()->isEdge()) {
 893     anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(anExternalAttr->context()->shape()));
 894   }
 895
 896   if (!anEdge) {
 897     theError = "The attribute %1 should be an edge";
 898     theError.arg(theAttribute->id());
 899     return false;
 900   }
 901
 902   // find a sketch
 903   std::shared_ptr<SketchPlugin_Sketch> aSketch;
 904   std::set<AttributePtr> aRefs = anExternalAttr->owner()->data()->refsToMe();
 905   std::set<AttributePtr>::const_iterator anIt = aRefs.begin();
 906   for (; anIt != aRefs.end(); ++anIt) {
 907     CompositeFeaturePtr aComp =
 908         std::dynamic_pointer_cast<ModelAPI_CompositeFeature>((*anIt)->owner());
 909     if (aComp && aComp->getKind() == SketchPlugin_Sketch::ID()) {
 910       aSketch = std::dynamic_pointer_cast<SketchPlugin_Sketch>(aComp);
 911       break;
 912     }
 913   }
 914   if (!aSketch) {
 915     theError = "There is no sketch referring to the current feature";
 916     return false;
 917   }
 918
 919   // check the edge is intersected with sketch plane
 920   std::shared_ptr<GeomAPI_Pln> aPlane = aSketch->plane();
 921
 922   std::list<GeomPointPtr> anIntersectionsPoints;
 923   anEdge->intersectWithPlane(aPlane, anIntersectionsPoints);
 924   if (anIntersectionsPoints.empty()) {
 925     theError = "The edge is not intersected with sketch plane";
 926     return false;
 927   }
 928   return true;
 929 }
 930
 931 bool SketchPlugin_SplitValidator::isValid(const AttributePtr& theAttribute,
 932                                           const std::list<std::string>& theArguments,
 933                                           Events_InfoMessage& theError) const
 934 {
 935   bool aValid = false;
 936
 937   if (theAttribute->attributeType() != ModelAPI_AttributeReference::typeId()) {
 938     theError = "The attribute with the %1 type is not processed";
 939     theError.arg(theAttribute->attributeType());
 940     return aValid;
 941   }
 942   AttributeReferencePtr aFeatureAttr =
 943             std::dynamic_pointer_cast<ModelAPI_AttributeReference>(theAttribute);
 944
 945   ObjectPtr anAttrObject = aFeatureAttr->value();
 946   FeaturePtr anAttrFeature = ModelAPI_Feature::feature(anAttrObject);
 947   if (!anAttrFeature)
 948     return aValid;
 949
 950   std::string aKind = anAttrFeature->getKind();
 951   if (aKind == SketchPlugin_Line::ID() ||
 952       aKind == SketchPlugin_Arc::ID() ||
 953       aKind == SketchPlugin_Circle::ID()) {
 954
 955     std::set<ResultPtr> anEdgeShapes;
 956     ModelGeomAlgo_Shape::shapesOfType(anAttrFeature, GeomAPI_Shape::EDGE, anEdgeShapes);
 957     if (anEdgeShapes.empty() || anEdgeShapes.size() > 1 /*there case has not existed yet*/)
 958       return aValid;
 959
 960     // coincidences to the feature
 961     std::set<std::shared_ptr<GeomDataAPI_Point2D> > aRefAttributes;
 962     ModelGeomAlgo_Point2D::getPointsOfReference(anAttrFeature,
 963                         SketchPlugin_ConstraintCoincidence::ID(),
 964                         aRefAttributes, SketchPlugin_Point::ID(), SketchPlugin_Point::COORD_ID());
 965
 966     GeomShapePtr anAttrShape = (*anEdgeShapes.begin())->shape();
 967     std::shared_ptr<SketchPlugin_Feature> aSFeature =
 968                                  std::dynamic_pointer_cast<SketchPlugin_Feature>(anAttrFeature);
 969     SketchPlugin_Sketch* aSketch = aSFeature->sketch();
 970
 971     std::shared_ptr<ModelAPI_Data> aData = aSketch->data();
 972     std::shared_ptr<GeomDataAPI_Point> aC = std::dynamic_pointer_cast<GeomDataAPI_Point>(
 973         aData->attribute(SketchPlugin_Sketch::ORIGIN_ID()));
 974     std::shared_ptr<GeomDataAPI_Dir> aX = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
 975         aData->attribute(SketchPlugin_Sketch::DIRX_ID()));
 976     std::shared_ptr<GeomDataAPI_Dir> aNorm = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
 977         aData->attribute(SketchPlugin_Sketch::NORM_ID()));
 978     std::shared_ptr<GeomAPI_Dir> aDirY(new GeomAPI_Dir(aNorm->dir()->cross(aX->dir())));
 979
 980     typedef std::map<std::shared_ptr<GeomAPI_Pnt>,
 981                      std::pair<std::list<std::shared_ptr<GeomDataAPI_Point2D> >,
 982                                std::list<std::shared_ptr<ModelAPI_Object> > > > PointToRefsMap;
 983     PointToRefsMap aPointsInfo;
 984
 985     ModelGeomAlgo_Point2D::getPointsInsideShape(anAttrShape, aRefAttributes, aC->pnt(),
 986                                                 aX->dir(), aDirY, aPointsInfo);
 987     int aCoincidentToFeature = (int)aPointsInfo.size();
 988     if (aKind == SketchPlugin_Circle::ID())
 989       aValid = aCoincidentToFeature >= 2;
 990     else
 991       aValid = aCoincidentToFeature >= 1;
 992   }
 993
 994   return aValid;
 995 }
 996
 997 bool SketchPlugin_TrimValidator::isValid(const AttributePtr& theAttribute,
 998                                          const std::list<std::string>& theArguments,
 999                                          Events_InfoMessage& theError) const
1000 {
1001   bool aValid = false;
1002
1003   if (theAttribute->attributeType() != ModelAPI_AttributeReference::typeId()) {
1004     theError = "The attribute with the %1 type is not processed";
1005     theError.arg(theAttribute->attributeType());
1006     return aValid;
1007   }
1008   AttributeReferencePtr aBaseObjectAttr =
1009             std::dynamic_pointer_cast<ModelAPI_AttributeReference>(theAttribute);
1010
1011   std::shared_ptr<SketchPlugin_Feature> aTrimFeature =
1012                  std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
1013
1014   ObjectPtr aBaseObject = aBaseObjectAttr->value();
1015   if (!aBaseObject) {
1016     AttributePtr aPreviewAttr = aTrimFeature->attribute(SketchPlugin_Trim::PREVIEW_OBJECT());
1017     aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(aPreviewAttr);
1018     aBaseObject = aBaseObjectAttr->value();
1019   }
1020
1021   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObject);
1022   if (!aBaseFeature)
1023     return aValid;
1024
1025   std::shared_ptr<SketchPlugin_Feature> aSketchFeature =
1026                                  std::dynamic_pointer_cast<SketchPlugin_Feature>(aBaseFeature);
1027   if (!aSketchFeature.get() || aSketchFeature->isCopy())
1028     return aValid;
1029
1030   std::string aKind = aBaseFeature->getKind();
1031   if (aKind != SketchPlugin_Line::ID() &&
1032       aKind != SketchPlugin_Arc::ID() &&
1033       aKind != SketchPlugin_Circle::ID())
1034     return aValid;
1035
1036   // point on feature
1037   AttributePoint2DPtr aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1038                        aTrimFeature->data()->attribute(SketchPlugin_Trim::PREVIEW_POINT()));
1039
1040   SketchPlugin_Sketch* aSketch = aTrimFeature->sketch();
1041
1042   std::shared_ptr<GeomAPI_Pnt2d> anAttributePnt2d = aPoint->pnt();
1043   std::shared_ptr<GeomAPI_Pnt> anAttributePnt = aSketch->to3D(anAttributePnt2d->x(),
1044                                                               anAttributePnt2d->y());
1045
1046   std::map<ObjectPtr, std::set<GeomShapePtr> > aCashedShapes;
1047   std::map<ObjectPtr, std::map<std::shared_ptr<GeomAPI_Pnt>,
1048            std::pair<std::list<std::shared_ptr<GeomDataAPI_Point2D> >,
1049                      std::list<std::shared_ptr<ModelAPI_Object> > > > > anObjectToPoints;
1050   SketchPlugin_Trim::fillObjectShapes(aBaseObject, aSketch->data()->owner(),
1051                                       aCashedShapes, anObjectToPoints);
1052   const std::set<GeomShapePtr>& aShapes = aCashedShapes[aBaseObject];
1053
1054   return aShapes.size() > 1;
1055 }
1056
1057 bool SketchPlugin_ProjectionValidator::isValid(const AttributePtr& theAttribute,
1058                                                const std::list<std::string>& theArguments,
1059                                                Events_InfoMessage& theError) const
1060 {
1061   if (theAttribute->attributeType() != ModelAPI_AttributeSelection::typeId()) {
1062     theError = "The attribute with the %1 type is not processed";
1063     theError.arg(theAttribute->attributeType());
1064     return false;
1065   }
1066
1067   AttributeSelectionPtr aFeatureAttr =
1068       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(theAttribute);
1069   std::shared_ptr<GeomAPI_Edge> anEdge;
1070   std::shared_ptr<SketchPlugin_Feature> aSketchFeature;
1071   if (aFeatureAttr.get()) {
1072     GeomShapePtr aVal = aFeatureAttr->value();
1073     ResultPtr aRes = aFeatureAttr->context();
1074     if (aVal && aVal->isVertex())
1075       return true; // vertex is always could be projected
1076     if (aVal && aVal->isEdge()) {
1077       anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aFeatureAttr->value()));
1078     } else if(aRes && aRes->shape()) {
1079       if (aRes->shape()->isVertex())
1080         return true; // vertex is always could be projected
1081       else if (aRes->shape()->isEdge())
1082         anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aFeatureAttr->context()->shape()));
1083     }
1084
1085     // try to convert result to sketch feature
1086     if (aRes) {
1087       aSketchFeature =
1088         std::dynamic_pointer_cast<SketchPlugin_Feature>(ModelAPI_Feature::feature(aRes));
1089     }
1090   }
1091   if (!anEdge) {
1092     theError = "The attribute %1 should be an edge or vertex";
1093     theError.arg(theAttribute->id());
1094     return false;
1095   }
1096
1097   // find a sketch
1098   std::shared_ptr<SketchPlugin_Sketch> aSketch;
1099   std::set<AttributePtr> aRefs = theAttribute->owner()->data()->refsToMe();
1100   std::set<AttributePtr>::const_iterator anIt = aRefs.begin();
1101   for (; anIt != aRefs.end(); ++anIt) {
1102     CompositeFeaturePtr aComp =
1103         std::dynamic_pointer_cast<ModelAPI_CompositeFeature>((*anIt)->owner());
1104     if (aComp && aComp->getKind() == SketchPlugin_Sketch::ID()) {
1105       aSketch = std::dynamic_pointer_cast<SketchPlugin_Sketch>(aComp);
1106       break;
1107     }
1108   }
1109   if (!aSketch) {
1110     theError = "There is no sketch referring to the current feature";
1111     return false;
1112   }
1113   if (aSketchFeature && aSketch.get() == aSketchFeature->sketch()) {
1114     theError = "Unable to project feature from the same sketch";
1115     return false;
1116   }
1117
1118   std::shared_ptr<GeomAPI_Pln> aPlane = aSketch->plane();
1119   std::shared_ptr<GeomAPI_Dir> aNormal = aPlane->direction();
1120   std::shared_ptr<GeomAPI_Pnt> anOrigin = aPlane->location();
1121
1122   if (anEdge->isLine()) {
1123     std::shared_ptr<GeomAPI_Lin> aLine = anEdge->line();
1124     std::shared_ptr<GeomAPI_Dir> aLineDir = aLine->direction();
1125     double aDot = fabs(aNormal->dot(aLineDir));
1126     bool aValid = fabs(aDot - 1.0) >= tolerance * tolerance;
1127     if (!aValid)
1128       theError = "Error: Edge is already in the sketch plane.";
1129     return aValid;
1130   }
1131   else if (anEdge->isCircle() || anEdge->isArc()) {
1132     std::shared_ptr<GeomAPI_Circ> aCircle = anEdge->circle();
1133     std::shared_ptr<GeomAPI_Dir> aCircNormal = aCircle->normal();
1134     double aDot = fabs(aNormal->dot(aCircNormal));
1135     bool aValid = fabs(aDot - 1.0) < tolerance * tolerance;
1136     if (!aValid)
1137       theError.arg(anEdge->isCircle() ? "Error: Cirlce is already in the sketch plane."
1138                                       : "Error: Arc is already in the sketch plane.");
1139     return aValid;
1140   }
1141
1142   theError = "Error: Selected object is not line, circle or arc.";
1143   return false;
1144 }
1145
1146
1147 static std::set<FeaturePtr> common(const std::set<FeaturePtr>& theSet1,
1148                                    const std::set<FeaturePtr>& theSet2)
1149 {
1150   std::set<FeaturePtr> aCommon;
1151   if (theSet1.empty() || theSet2.empty())
1152     return aCommon;
1153
1154   std::set<FeaturePtr>::const_iterator anIt2 = theSet2.begin();
1155   for (; anIt2 != theSet2.end(); ++anIt2)
1156     if (theSet1.find(*anIt2) != theSet1.end())
1157       aCommon.insert(*anIt2);
1158   return aCommon;
1159 }
1160
1161 bool SketchPlugin_DifferentReferenceValidator::isValid(
1162     const AttributePtr& theAttribute,
1163     const std::list<std::string>& theArguments,
1164     Events_InfoMessage& theError) const
1165 {
1166   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1167
1168   int aNbFeaturesReferred = 0;
1169   int aNbAttributesReferred = 0;
1170   std::set<FeaturePtr> aCommonReferredFeatures;
1171
1172   // find all features referred by attributes listed in theArguments
1173   std::list<std::string>::const_iterator anArgIt = theArguments.begin();
1174   for (; anArgIt != theArguments.end(); ++anArgIt) {
1175     AttributeRefAttrPtr aRefAttr = anOwner->refattr(*anArgIt);
1176     if (!aRefAttr)
1177       continue;
1178
1179     std::set<FeaturePtr> aCoincidentFeatures;
1180     if (aRefAttr->isObject()) {
1181       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->object());
1182       if (aFeature) {
1183         aCoincidentFeatures.insert(aFeature);
1184         aNbFeaturesReferred += 1;
1185       }
1186     } else {
1187       AttributePoint2DPtr aPoint =
1188           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
1189       if (aPoint) {
1190         aCoincidentFeatures = SketchPlugin_Tools::findFeaturesCoincidentToPoint(aPoint);
1191         aNbAttributesReferred += 1;
1192       }
1193     }
1194
1195     if (aCommonReferredFeatures.empty())
1196       aCommonReferredFeatures = aCoincidentFeatures;
1197     else
1198       aCommonReferredFeatures = common(aCommonReferredFeatures, aCoincidentFeatures);
1199
1200     if (aCommonReferredFeatures.empty())
1201       return true;
1202   }
1203
1204   bool isOk = aNbFeaturesReferred < 1;
1205   if (aNbFeaturesReferred == 1) {
1206     if (aCommonReferredFeatures.size() == 1) {
1207       FeaturePtr aFeature = *aCommonReferredFeatures.begin();
1208       isOk = aNbAttributesReferred <= 1 ||
1209              aFeature->getKind() == SketchPlugin_Circle::ID() ||
1210              aFeature->getKind() == SketchPlugin_Arc::ID();
1211     } else
1212       isOk = false;
1213   }
1214
1215   if (!isOk)
1216     theError = "Attributes are referred to the same feature";
1217   return isOk;
1218 }
1219
1220 bool SketchPlugin_DifferentPointReferenceValidator::isValid(
1221     const AttributePtr& theAttribute,
1222     const std::list<std::string>& theArguments,
1223     Events_InfoMessage& theError) const
1224 {
1225   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1226   std::set<AttributePoint2DPtr> aReferredCoincidentPoints;
1227
1228   // find all points referred by attributes listed in theArguments
1229   bool hasRefsToPoints = false;
1230   std::list<std::string>::const_iterator anArgIt = theArguments.begin();
1231   for (; anArgIt != theArguments.end(); ++anArgIt) {
1232     AttributeRefAttrPtr aRefAttr = anOwner->refattr(*anArgIt);
1233     if (!aRefAttr)
1234       continue;
1235
1236     if (!aRefAttr->isObject()) {
1237       AttributePoint2DPtr aPoint =
1238           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
1239       if (aReferredCoincidentPoints.empty())
1240         aReferredCoincidentPoints = SketchPlugin_Tools::findPointsCoincidentToPoint(aPoint);
1241       else if (aReferredCoincidentPoints.find(aPoint) == aReferredCoincidentPoints.end())
1242         return true; // non-coincident point has been found
1243       else
1244         hasRefsToPoints = true;
1245     }
1246   }
1247
1248   if (hasRefsToPoints)
1249     theError = "Attributes are referred to the same point";
1250   return !hasRefsToPoints;
1251 }
1252
1253 bool SketchPlugin_CirclePassedPointValidator::isValid(
1254     const AttributePtr& theAttribute,
1255     const std::list<std::string>&,
1256     Events_InfoMessage& theError) const
1257 {
1258   static const std::string aErrorMessage(
1259       "Passed point refers to the same feature as a center point");
1260
1261   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1262
1263   AttributeRefAttrPtr aCenterRef =
1264       anOwner->refattr(SketchPlugin_MacroCircle::CENTER_POINT_REF_ID());
1265   AttributeRefAttrPtr aPassedRef =
1266       anOwner->refattr(SketchPlugin_MacroCircle::PASSED_POINT_REF_ID());
1267
1268   if (!aPassedRef->isObject())
1269     return true;
1270
1271   FeaturePtr aPassedFeature = ModelAPI_Feature::feature(aPassedRef->object());
1272   if (!aPassedFeature)
1273     return true;
1274
1275   if (aCenterRef->isObject()) {
1276     if (aCenterRef->object() == aPassedRef->object()) {
1277       theError = aErrorMessage;
1278       return false;
1279     }
1280   } else {
1281     AttributePoint2DPtr aCenterPoint =
1282         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aCenterRef->attr());
1283     if (aCenterPoint) {
1284       std::set<FeaturePtr> aCoincidentFeatures =
1285           SketchPlugin_Tools::findFeaturesCoincidentToPoint(aCenterPoint);
1286       // check one of coincident features is a feature referred by passed point
1287       std::set<FeaturePtr>::const_iterator anIt = aCoincidentFeatures.begin();
1288       for(; anIt != aCoincidentFeatures.end(); ++anIt)
1289         if (*anIt == aPassedFeature) {
1290           theError = aErrorMessage;
1291           return false;
1292         }
1293     }
1294   }
1295   return true;
1296 }
1297
1298 bool SketchPlugin_ThirdPointValidator::isValid(
1299     const AttributePtr& theAttribute,
1300     const std::list<std::string>& theArguments,
1301     Events_InfoMessage& theError) const
1302 {
1303   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1304   return arePointsNotOnLine(anOwner, theError) &&
1305          arePointsNotSeparated(anOwner, theArguments, theError);
1306 }
1307
1308 static std::shared_ptr<GeomAPI_Pnt2d> toPoint(const FeaturePtr& theMacroCircle,
1309                                               const std::string& thePointAttrName,
1310                                               const std::string& theRefPointAttrName)
1311 {
1312   AttributePoint2DPtr aPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1313       theMacroCircle->attribute(thePointAttrName));
1314   AttributeRefAttrPtr aRefAttr = theMacroCircle->refattr(theRefPointAttrName);
1315
1316   std::shared_ptr<GeomAPI_Pnt2d> aPoint = aPointAttr->pnt();
1317   if (aRefAttr) {
1318     if (aRefAttr->isObject()) {
1319       // project a point onto selected feature
1320       std::shared_ptr<SketchPlugin_Feature> aFeature =
1321           std::dynamic_pointer_cast<SketchPlugin_Feature>(
1322           ModelAPI_Feature::feature(aRefAttr->object()));
1323       if (aFeature) {
1324         SketchPlugin_Sketch* aSketch = aFeature->sketch();
1325         std::shared_ptr<GeomAPI_Edge> anEdge =
1326             std::dynamic_pointer_cast<GeomAPI_Edge>(aFeature->lastResult()->shape());
1327         if (anEdge) {
1328           std::shared_ptr<GeomAPI_Pnt> aPoint3D = aSketch->to3D(aPoint->x(), aPoint->y());
1329           if (anEdge->isLine())
1330             aPoint3D = anEdge->line()->project(aPoint3D);
1331           else if (anEdge->isCircle())
1332             aPoint3D = anEdge->circle()->project(aPoint3D);
1333           if(aPoint3D)
1334             aPoint = aSketch->to2D(aPoint3D);
1335         }
1336       }
1337     } else {
1338       AttributePoint2DPtr anOtherPoint =
1339           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
1340       if (anOtherPoint)
1341         aPoint = anOtherPoint->pnt(); // the reference point is much more precise, use it
1342     }
1343   }
1344
1345   return aPoint;
1346 }
1347
1348 static void threePointsOfFeature(const FeaturePtr& theMacroFeature,
1349                                  std::shared_ptr<GeomAPI_Pnt2d> thePoints[3])
1350 {
1351   if (theMacroFeature->getKind() == SketchPlugin_MacroCircle::ID()) {
1352     thePoints[0] = toPoint(theMacroFeature,
1353           SketchPlugin_MacroCircle::FIRST_POINT_ID(),
1354           SketchPlugin_MacroCircle::FIRST_POINT_REF_ID());
1355     thePoints[1] = toPoint(theMacroFeature,
1356           SketchPlugin_MacroCircle::SECOND_POINT_ID(),
1357           SketchPlugin_MacroCircle::SECOND_POINT_REF_ID());
1358     thePoints[2] = toPoint(theMacroFeature,
1359           SketchPlugin_MacroCircle::THIRD_POINT_ID(),
1360           SketchPlugin_MacroCircle::THIRD_POINT_REF_ID());
1361   } else if (theMacroFeature->getKind() == SketchPlugin_MacroArc::ID()) {
1362     thePoints[0] = toPoint(theMacroFeature,
1363           SketchPlugin_MacroArc::START_POINT_2_ID(),
1364           SketchPlugin_MacroArc::START_POINT_REF_ID());
1365     thePoints[1] = toPoint(theMacroFeature,
1366           SketchPlugin_MacroArc::END_POINT_2_ID(),
1367           SketchPlugin_MacroArc::END_POINT_REF_ID());
1368     thePoints[2] = toPoint(theMacroFeature,
1369           SketchPlugin_MacroArc::PASSED_POINT_ID(),
1370           SketchPlugin_MacroArc::PASSED_POINT_REF_ID());
1371   }
1372 }
1373
1374 static bool isPointsOnLine(const std::shared_ptr<GeomAPI_Pnt2d>& thePoint1,
1375                            const std::shared_ptr<GeomAPI_Pnt2d>& thePoint2,
1376                            const std::shared_ptr<GeomAPI_Pnt2d>& thePoint3)
1377 {
1378   static const double aTolerance = 1.e-7;
1379   if (thePoint1->distance(thePoint2) < aTolerance ||
1380       thePoint1->distance(thePoint3) < aTolerance)
1381     return true;
1382
1383   std::shared_ptr<GeomAPI_Dir2d> aDirP1P2(new GeomAPI_Dir2d(thePoint2->x() - thePoint1->x(),
1384                                                             thePoint2->y() - thePoint1->y()));
1385   std::shared_ptr<GeomAPI_Dir2d> aDirP1P3(new GeomAPI_Dir2d(thePoint3->x() - thePoint1->x(),
1386                                                             thePoint3->y() - thePoint1->y()));
1387   return fabs(aDirP1P2->cross(aDirP1P3)) < aTolerance;
1388 }
1389
1390 static bool isOnSameSide(const std::shared_ptr<GeomAPI_Lin>& theLine,
1391                          const std::shared_ptr<GeomAPI_Pnt>& thePoint1,
1392                          const std::shared_ptr<GeomAPI_Pnt>& thePoint2)
1393 {
1394   static const double aTolerance = 1.e-7;
1395   std::shared_ptr<GeomAPI_Dir> aLineDir = theLine->direction();
1396   std::shared_ptr<GeomAPI_XYZ> aLineLoc = theLine->location()->xyz();
1397
1398   std::shared_ptr<GeomAPI_XYZ> aVec1 = thePoint1->xyz()->decreased(aLineLoc);
1399   // the first point is on the line
1400   if (aVec1->squareModulus() < aTolerance * aTolerance)
1401     return false;
1402   std::shared_ptr<GeomAPI_Dir> aDirP1L(new GeomAPI_Dir(aVec1));
1403   std::shared_ptr<GeomAPI_XYZ> aVec2 = thePoint2->xyz()->decreased(aLineLoc);
1404   // the second point is on the line
1405   if (aVec2->squareModulus() < aTolerance * aTolerance)
1406     return false;
1407   std::shared_ptr<GeomAPI_Dir> aDirP2L(new GeomAPI_Dir(aVec2));
1408
1409   return aLineDir->cross(aDirP1L)->dot(aLineDir->cross(aDirP2L)) > -aTolerance;
1410 }
1411
1412 static bool isOnSameSide(const std::shared_ptr<GeomAPI_Circ>& theCircle,
1413                          const std::shared_ptr<GeomAPI_Pnt>&  thePoint1,
1414                          const std::shared_ptr<GeomAPI_Pnt>&  thePoint2)
1415 {
1416   static const double aTolerance = 1.e-7;
1417   std::shared_ptr<GeomAPI_Pnt> aCenter = theCircle->center();
1418   double aDistP1C = thePoint1->distance(aCenter);
1419   double aDistP2C = thePoint2->distance(aCenter);
1420   return (aDistP1C - theCircle->radius()) * (aDistP2C - theCircle->radius()) > -aTolerance;
1421 }
1422
1423 bool SketchPlugin_ThirdPointValidator::arePointsNotOnLine(
1424     const FeaturePtr& theMacroFeature,
1425     Events_InfoMessage& theError) const
1426 {
1427   static const std::string aErrorPointsOnLine(
1428       "Selected points are on the same line");
1429
1430   std::shared_ptr<GeomAPI_Pnt2d> aPoints[3];
1431   threePointsOfFeature(theMacroFeature, aPoints);
1432
1433   if (isPointsOnLine(aPoints[0], aPoints[1], aPoints[2])) {
1434     theError = aErrorPointsOnLine;
1435     return false;
1436   }
1437   return true;
1438 }
1439
1440 bool SketchPlugin_ThirdPointValidator::arePointsNotSeparated(
1441     const FeaturePtr& theMacroFeature,
1442     const std::list<std::string>& theArguments,
1443     Events_InfoMessage& theError) const
1444 {
1445   static const std::string aErrorPointsApart(
1446       "Selected entity is lying between first two points");
1447
1448   AttributeRefAttrPtr aThirdPointRef = theMacroFeature->refattr(theArguments.front());
1449   FeaturePtr aRefByThird;
1450   if (aThirdPointRef->isObject())
1451     aRefByThird = ModelAPI_Feature::feature(aThirdPointRef->object());
1452   if (!aRefByThird)
1453     return true;
1454
1455   std::shared_ptr<GeomAPI_Pnt2d> aPoints[3];
1456   threePointsOfFeature(theMacroFeature, aPoints);
1457
1458   std::shared_ptr<GeomAPI_Edge> aThirdShape =
1459       std::dynamic_pointer_cast<GeomAPI_Edge>(aRefByThird->lastResult()->shape());
1460   if (!aThirdShape)
1461     return true;
1462
1463   SketchPlugin_Sketch* aSketch =
1464       std::dynamic_pointer_cast<SketchPlugin_Feature>(theMacroFeature)->sketch();
1465   std::shared_ptr<GeomAPI_Pnt> aFirstPnt3D = aSketch->to3D(aPoints[0]->x(), aPoints[0]->y());
1466   std::shared_ptr<GeomAPI_Pnt> aSecondPnt3D = aSketch->to3D(aPoints[1]->x(), aPoints[1]->y());
1467
1468   bool isOk = true;
1469   if (aThirdShape->isLine())
1470     isOk = isOnSameSide(aThirdShape->line(), aFirstPnt3D, aSecondPnt3D);
1471   else if (aThirdShape->isCircle() || aThirdShape->isArc())
1472     isOk = isOnSameSide(aThirdShape->circle(), aFirstPnt3D, aSecondPnt3D);
1473
1474   if (!isOk)
1475     theError = aErrorPointsApart;
1476   return isOk;
1477 }
1478
1479 bool SketchPlugin_ArcEndPointValidator::isValid(
1480     const AttributePtr& theAttribute,
1481     const std::list<std::string>& theArguments,
1482     Events_InfoMessage& theError) const
1483 {
1484   FeaturePtr aFeature = ModelAPI_Feature::feature(theAttribute->owner());
1485   AttributeRefAttrPtr anEndPointRef = aFeature->refattr(theArguments.front());
1486
1487   if(!anEndPointRef.get()) {
1488     return true;
1489   }
1490
1491   ObjectPtr anObject = anEndPointRef->object();
1492   AttributePtr anAttr = anEndPointRef->attr();
1493   if(!anObject.get() && !anAttr.get()) {
1494     return true;
1495   }
1496
1497   if(anEndPointRef->attr().get()) {
1498     return false;
1499   }
1500
1501   ResultPtr aResult = std::dynamic_pointer_cast<ModelAPI_Result>(anObject);
1502   if(aResult.get()) {
1503     GeomShapePtr aShape = aResult->shape();
1504     if(aShape.get() && aShape->isVertex()) {
1505       return false;
1506     }
1507   }
1508
1509   aFeature = ModelAPI_Feature::feature(anObject);
1510   if(aFeature.get()) {
1511     if(aFeature->getKind() == SketchPlugin_Point::ID()) {
1512       return false;
1513     }
1514   }
1515
1516   return true;
1517 }
1518
1519 static GeomShapePtr toInfiniteEdge(const GeomShapePtr theShape)
1520 {
1521   if(!theShape.get()) {
1522     return theShape;
1523   }
1524
1525   if(!theShape->isEdge()) {
1526     return theShape;
1527   }
1528
1529   std::shared_ptr<GeomAPI_Edge> anEdge(new GeomAPI_Edge(theShape));
1530
1531   if(!anEdge.get()) {
1532     return theShape;
1533   }
1534
1535   if(anEdge->isLine()) {
1536     std::shared_ptr<GeomAPI_Lin> aLine = anEdge->line();
1537     GeomShapePtr aShape = GeomAlgoAPI_EdgeBuilder::line(aLine);
1538     return aShape;
1539   }
1540
1541   if(anEdge->isCircle() || anEdge->isArc()) {
1542     std::shared_ptr<GeomAPI_Circ> aCircle = anEdge->circle();
1543     GeomShapePtr aShape = GeomAlgoAPI_EdgeBuilder::lineCircle(aCircle);
1544     return aShape;
1545   }
1546
1547   return theShape;
1548 }
1549
1550 bool SketchPlugin_ArcEndPointIntersectionValidator::isValid(
1551     const AttributePtr& theAttribute,
1552     const std::list<std::string>& theArguments,
1553     Events_InfoMessage& theError) const
1554 {
1555   std::shared_ptr<SketchPlugin_MacroArc> anArcFeature =
1556       std::dynamic_pointer_cast<SketchPlugin_MacroArc>(theAttribute->owner());
1557   AttributeRefAttrPtr anEndPointRef = anArcFeature->refattr(theArguments.front());
1558
1559   if(!anEndPointRef.get()) {
1560     return true;
1561   }
1562
1563   GeomShapePtr anArcShape = toInfiniteEdge(anArcFeature->getArcShape(false));
1564
1565   if(!anArcShape.get() || anArcShape->isNull()) {
1566     return true;
1567   }
1568
1569   ObjectPtr anObject = anEndPointRef->object();
1570   AttributePtr anAttr = anEndPointRef->attr();
1571   if(!anObject.get() && !anAttr.get()) {
1572     return true;
1573   }
1574
1575   ResultPtr aResult = std::dynamic_pointer_cast<ModelAPI_Result>(anObject);
1576   if(aResult.get()) {
1577     GeomShapePtr aShape = aResult->shape();
1578     if (!aShape->isEdge())
1579       return true;
1580     aShape = toInfiniteEdge(aShape);
1581     if(aShape.get() && !aShape->isNull()) {
1582       if(anArcShape->isIntersect(aShape)) {
1583         return true;
1584       }
1585     }
1586   }
1587
1588   FeaturePtr aSelectedFeature = ModelAPI_Feature::feature(anObject);
1589   if(aSelectedFeature.get()) {
1590     std::list<ResultPtr> aResults = aSelectedFeature->results();
1591     for(std::list<ResultPtr>::const_iterator anIt = aResults.cbegin();
1592         anIt != aResults.cend();
1593         ++anIt)
1594     {
1595       GeomShapePtr aShape = (*anIt)->shape();
1596       if (!aShape->isEdge())
1597         return true;
1598       aShape = toInfiniteEdge(aShape);
1599       if(aShape.get() && !aShape->isNull()) {
1600         if(anArcShape->isIntersect(aShape)) {
1601           return true;
1602         }
1603       }
1604     }
1605   }
1606
1607   return false;
1608 }
1609
1610 bool SketchPlugin_HasNoConstraint::isValid(const AttributePtr& theAttribute,
1611                                            const std::list<std::string>& theArguments,
1612                                            Events_InfoMessage& theError) const
1613 {
1614   std::set<std::string> aFeatureKinds;
1615   for (std::list<std::string>::const_iterator anArgIt = theArguments.begin();
1616        anArgIt != theArguments.end(); anArgIt++) {
1617     aFeatureKinds.insert(*anArgIt);
1618   }
1619
1620   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
1621     theError = "The attribute with the %1 type is not processed";
1622     theError.arg(theAttribute->attributeType());
1623     return false;
1624   }
1625
1626   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
1627                                                                       (theAttribute);
1628   bool isObject = aRefAttr->isObject();
1629   if (!isObject) {
1630     theError = "It uses an empty object";
1631     return false;
1632   }
1633   ObjectPtr anObject = aRefAttr->object();
1634   FeaturePtr aFeature = ModelAPI_Feature::feature(anObject);
1635   if (!aFeature.get()) {
1636     theError = "The feature of the checked attribute is empty";
1637     return false;
1638   }
1639
1640   FeaturePtr aCurrentFeature = ModelAPI_Feature::feature(aRefAttr->owner());
1641
1642   std::set<AttributePtr> aRefsList = anObject->data()->refsToMe();
1643   std::set<AttributePtr>::const_iterator anIt = aRefsList.begin();
1644   for (; anIt != aRefsList.end(); anIt++) {
1645     FeaturePtr aRefFeature = ModelAPI_Feature::feature((*anIt)->owner());
1646     if (aRefFeature.get() && aCurrentFeature != aRefFeature &&
1647         aFeatureKinds.find(aRefFeature->getKind()) != aFeatureKinds.end())
1648       return false; // constraint is found, that means that the check is not valid
1649   }
1650   return true;
1651 }
1652
1653 bool SketchPlugin_ReplicationReferenceValidator::isValid(
1654     const AttributePtr& theAttribute,
1655     const std::list<std::string>& theArguments,
1656     Events_InfoMessage& theError) const
1657 {
1658   AttributeRefAttrPtr aRefAttr =
1659       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
1660   if (!aRefAttr)
1661   {
1662     theError = "Incorrect attribute";
1663     return false;
1664   }
1665
1666   ObjectPtr anOwner;
1667   if (aRefAttr->isObject())
1668     anOwner = aRefAttr->object();
1669   else
1670   {
1671     AttributePtr anAttr = aRefAttr->attr();
1672     anOwner = anAttr->owner();
1673   }
1674   FeaturePtr anAttrOwnerFeature = ModelAPI_Feature::feature(anOwner);
1675   if (!anAttrOwnerFeature)
1676     return true;
1677   AttributeBooleanPtr aCopyAttr = anAttrOwnerFeature->boolean(SketchPlugin_SketchEntity::COPY_ID());
1678   if (!aCopyAttr || !aCopyAttr->value())
1679     return true; // feature is not a copy, thus valid
1680
1681   // check the copy feature is already referred by the "Multi" feature
1682   FeaturePtr aMultiFeature = ModelAPI_Feature::feature(theAttribute->owner());
1683   AttributeRefListPtr aRefList = aMultiFeature->reflist(theArguments.front());
1684   for (int i = 0; i < aRefList->size(); ++i)
1685   {
1686     FeaturePtr aRefOwner = ModelAPI_Feature::feature(aRefList->object(i));
1687     if (aRefOwner == anAttrOwnerFeature)
1688     {
1689       theError = "Attribute refers to the object generated by this feature";
1690       return false;
1691     }
1692   }
1693
1694   return true;
1695 }
1696
1697 bool SketchPlugin_SketchFeatureValidator::isValid(const AttributePtr& theAttribute,
1698                                                   const std::list<std::string>& theArguments,
1699                                                   Events_InfoMessage& theError) const
1700 {
1701   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
1702     theError = "The attribute with the %1 type is not processed";
1703     theError.arg(theAttribute->attributeType());
1704     return false;
1705   }
1706
1707   // check the attribute refers to a sketch feature
1708   AttributeRefAttrPtr aRefAttr =
1709       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
1710   bool isSketchFeature = aRefAttr->isObject();
1711   if (isSketchFeature) {
1712     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->object());
1713     isSketchFeature = aFeature.get() != NULL;
1714     if (isSketchFeature) {
1715       std::shared_ptr<SketchPlugin_Feature> aSketchFeature =
1716           std::dynamic_pointer_cast<SketchPlugin_Feature>(aFeature);
1717       isSketchFeature = aSketchFeature.get() != NULL;
1718     }
1719   }
1720
1721   if (isSketchFeature)
1722     return true;
1723
1724   theError = "The object selected is not a sketch feature";
1725   return false;
1726 }
1727
1728 bool SketchPlugin_MultiRotationAngleValidator::isValid(const AttributePtr& theAttribute,
1729                                                        const std::list<std::string>& theArguments,
1730                                                        Events_InfoMessage& theError) const
1731 {
1732   if (theAttribute->attributeType() != ModelAPI_AttributeDouble::typeId()) {
1733     theError = "The attribute with the %1 type is not processed";
1734     theError.arg(theAttribute->attributeType());
1735     return false;
1736   }
1737
1738   AttributeDoublePtr anAngleAttr =
1739     std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(theAttribute);
1740
1741   FeaturePtr aMultiRotation = ModelAPI_Feature::feature(theAttribute->owner());
1742   AttributeStringPtr anAngleType =
1743       aMultiRotation->string(SketchPlugin_MultiRotation::ANGLE_TYPE());
1744   AttributeIntegerPtr aNbCopies =
1745       aMultiRotation->integer(SketchPlugin_MultiRotation::NUMBER_OF_OBJECTS_ID());
1746
1747   if (anAngleType->value() != "FullAngle")
1748   {
1749     double aFullAngleValue = anAngleAttr->value() * (aNbCopies->value() - 1);
1750     if (aFullAngleValue < -1.e-7 || aFullAngleValue > 359.9999999)
1751     {
1752       theError = "Rotation single angle should produce full angle less than 360 degree";
1753       return false;
1754     }
1755   }
1756   else
1757   {
1758     double aFullAngleValue = anAngleAttr->value();
1759     if (aFullAngleValue < -1.e-7 || aFullAngleValue > 360.0000001)
1760     {
1761       theError = "Rotation full angle should be in range [0, 360]";
1762       return false;
1763     }
1764   }
1765
1766   return true;
1767 }