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_BSpline.h"
  24 #include "SketchPlugin_BSplinePeriodic.h"
  25 #include "SketchPlugin_Circle.h"
  26 #include "SketchPlugin_ConstraintCoincidence.h"
  27 #include "SketchPlugin_ConstraintDistance.h"
  28 #include "SketchPlugin_ConstraintRigid.h"
  29 #include "SketchPlugin_ConstraintTangent.h"
  30 #include "SketchPlugin_Ellipse.h"
  31 #include "SketchPlugin_EllipticArc.h"
  32 #include "SketchPlugin_Fillet.h"
  33 #include "SketchPlugin_Line.h"
  34 #include "SketchPlugin_MacroArc.h"
  35 #include "SketchPlugin_MacroCircle.h"
  36 #include "SketchPlugin_MultiRotation.h"
  37 #include "SketchPlugin_Point.h"
  38 #include "SketchPlugin_Sketch.h"
  39 #include "SketchPlugin_Trim.h"
  40 #include "SketchPlugin_Tools.h"
  41
  42 #include "SketcherPrs_Tools.h"
  43
  44 #include <Events_InfoMessage.h>
  45
  46 #include <ModelAPI_Data.h>
  47 #include <ModelAPI_Validator.h>
  48 #include <ModelAPI_AttributeDouble.h>
  49 #include <ModelAPI_AttributeInteger.h>
  50 #include <ModelAPI_AttributeRefAttr.h>
  51 #include <ModelAPI_AttributeRefList.h>
  52 #include <ModelAPI_AttributeSelectionList.h>
  53 #include <ModelAPI_AttributeString.h>
  54 #include <ModelAPI_Session.h>
  55 #include <ModelAPI_Tools.h>
  56 #include <ModelAPI_ResultConstruction.h>
  57
  58 #include <ModelGeomAlgo_Point2D.h>
  59 #include <ModelGeomAlgo_Shape.h>
  60
  61 #include <GeomAlgoAPI_EdgeBuilder.h>
  62 #include <GeomAlgoAPI_ShapeTools.h>
  63
  64 #include <GeomAPI_Circ.h>
  65 #include <GeomAPI_Dir2d.h>
  66 #include <GeomAPI_Ellipse.h>
  67 #include <GeomAPI_Lin.h>
  68 #include <GeomAPI_Edge.h>
  69 #include <GeomAPI_Vertex.h>
  70
  71 #include <GeomDataAPI_Point2D.h>
  72 #include <GeomDataAPI_Point2DArray.h>
  73
  74 #include <algorithm>
  75 #include <cmath>
  76
  77 const double tolerance = 1.e-7;
  78
  79 static bool isSpline(FeaturePtr theFeature)
  80 {
  81   return theFeature && (theFeature->getKind() == SketchPlugin_BSpline::ID() ||
  82                         theFeature->getKind() == SketchPlugin_BSplinePeriodic::ID());
  83 }
  84
  85
  86 bool SketchPlugin_DistanceAttrValidator::isValid(const AttributePtr& theAttribute,
  87                                                  const std::list<std::string>& theArguments,
  88                                                  Events_InfoMessage& theError) const
  89 {
  90   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
  91     theError = "The attribute with the %1 type is not processed";
  92     theError.arg(theAttribute->attributeType());
  93     return false;
  94   }
  95
  96   // there is a check whether the feature contains a point and a linear edge or two point values
  97   std::string aParamA = theArguments.front();
  98   SessionPtr aMgr = ModelAPI_Session::get();
  99   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 100
 101   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
 102                                                                       (theAttribute);
 103   bool isObject = aRefAttr->isObject();
 104   if (!isObject) {
 105     // an attribute is a point. A point value is valid always for the distance
 106     return true;
 107   } else {
 108     // 1. check whether the references object is a linear
 109     ObjectPtr anObject = aRefAttr->object();
 110
 111     const ModelAPI_AttributeValidator* aShapeValidator =
 112       dynamic_cast<const ModelAPI_AttributeValidator*>(
 113       aFactory->validator("GeomValidators_ShapeType"));
 114     std::list<std::string> anArguments;
 115     anArguments.push_back("circle");
 116     Events_InfoMessage aCircleError;
 117     bool aShapeValid = aShapeValidator->isValid(aRefAttr, anArguments, aCircleError);
 118     // the circle line is not a valid case
 119     if (aShapeValid) {
 120       theError = "Circle can not be used in distance constraint";
 121       return false;
 122     }
 123
 124     anArguments.clear();
 125     anArguments.push_back("line");
 126     Events_InfoMessage aLineError;
 127     aShapeValid = aShapeValidator->isValid(aRefAttr, anArguments, aLineError);
 128     // if the attribute value is not a line, that means it is a vertex. A vertex is always valid
 129     if (aShapeValid) {
 130       FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 131       // If it is a line then we have to check that first attribute id not a line
 132       std::shared_ptr<SketchPlugin_Feature> aSFeature =
 133         std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
 134       SketchPlugin_Sketch* aSketch = aSFeature->sketch();
 135       std::shared_ptr<GeomAPI_Ax3> aPlane = SketchPlugin_Sketch::plane(aSketch);
 136       std::shared_ptr<GeomDataAPI_Point2D> aPoint = SketcherPrs_Tools::getFeaturePoint(
 137         aFeature->data(), aParamA, aPlane);
 138       if (!aPoint.get()) {
 139         theError = "One of parameters of distance constraint should be a point";
 140         return false;
 141       }
 142     }
 143   }
 144   return true;
 145 }
 146
 147 bool SketchPlugin_TangentAttrValidator::isValid(const AttributePtr& theAttribute,
 148                                                 const std::list<std::string>& theArguments,
 149                                                 Events_InfoMessage& theError) const
 150 {
 151   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 152     theError = "The attribute with the %1 type is not processed";
 153     theError.arg(theAttribute->attributeType());
 154     return false;
 155   }
 156
 157   // there is a check whether the feature contains a point and a linear edge or two point values
 158   std::string aParamA = theArguments.front();
 159   SessionPtr aMgr = ModelAPI_Session::get();
 160   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 161
 162   FeaturePtr anAttributeFeature =
 163     std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 164   AttributeRefAttrPtr aRefAttr =
 165     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 166
 167   bool isObject = aRefAttr->isObject();
 168   ObjectPtr anObject = aRefAttr->object();
 169   if (isObject && anObject.get()) {
 170     FeaturePtr aRefFea = ModelAPI_Feature::feature(anObject);
 171
 172     AttributeRefAttrPtr aOtherAttr = anAttributeFeature->data()->refattr(aParamA);
 173     ObjectPtr aOtherObject = aOtherAttr->object();
 174     FeaturePtr aOtherFea = ModelAPI_Feature::feature(aOtherObject);
 175     if (!aOtherFea)
 176       return true;
 177
 178     if (aRefFea->getKind() == SketchPlugin_Line::ID() &&
 179         aOtherFea->getKind() == SketchPlugin_Line::ID()) {
 180       theError = "Two segments cannot be tangent";
 181       return false;
 182     }
 183     else if (isSpline(aRefFea) && isSpline(aOtherFea)) {
 184       theError = "Two B-splines cannot be tangent";
 185       return false;
 186     }
 187     return true;
 188   }
 189   else {
 190     theError = "It uses an empty object";
 191     return false;
 192   }
 193
 194   return true;
 195 }
 196
 197 bool SketchPlugin_PerpendicularAttrValidator::isValid(const AttributePtr& theAttribute,
 198                                                       const std::list<std::string>& theArguments,
 199                                                       Events_InfoMessage& theError) const
 200 {
 201   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 202     theError = "The attribute with the %1 type is not processed";
 203     theError.arg(theAttribute->attributeType());
 204     return false;
 205   }
 206
 207   std::string aParamA = theArguments.front();
 208   SessionPtr aMgr = ModelAPI_Session::get();
 209   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 210
 211   FeaturePtr anOwner = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 212   AttributeRefAttrPtr aRefAttr =
 213       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 214
 215   bool isObject = aRefAttr->isObject();
 216   ObjectPtr anObject = aRefAttr->object();
 217   if (isObject && anObject.get()) {
 218     FeaturePtr aRefFea = ModelAPI_Feature::feature(anObject);
 219
 220     AttributeRefAttrPtr aOtherAttr = anOwner->refattr(aParamA);
 221     ObjectPtr aOtherObject = aOtherAttr->object();
 222     FeaturePtr aOtherFea = ModelAPI_Feature::feature(aOtherObject);
 223
 224     // at least one feature should be a line
 225     if (aRefFea->getKind() != SketchPlugin_Line::ID() &&
 226         aOtherFea && aOtherFea->getKind() != SketchPlugin_Line::ID()) {
 227       theError = "At least one feature should be a line";
 228       return false;
 229     }
 230     else if (isSpline(aRefFea) || isSpline(aOtherFea)) {
 231       theError = "B-spline is not supported";
 232       return false;
 233     }
 234   }
 235   else {
 236     theError = "It uses an empty object";
 237     return false;
 238   }
 239
 240   return true;
 241 }
 242
 243 bool SketchPlugin_NotFixedValidator::isValid(const AttributePtr& theAttribute,
 244                                              const std::list<std::string>& theArguments,
 245                                              Events_InfoMessage& theError) const
 246 {
 247   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 248     theError = "The attribute with the %1 type is not processed";
 249     theError.arg(theAttribute->attributeType());
 250     return false;
 251   }
 252
 253   std::shared_ptr<SketchPlugin_Feature> aFeature =
 254       std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
 255   if (!aFeature)
 256     return true;
 257
 258   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 259
 260   SketchPlugin_Sketch* aSketch = aFeature->sketch();
 261   int aNbFeatures = aSketch->numberOfSubs();
 262   for (int anInd = 0; anInd < aNbFeatures; anInd++) {
 263     FeaturePtr aSubFeature = aSketch->subFeature(anInd);
 264     if (aSubFeature->getKind() != SketchPlugin_ConstraintRigid::ID() || aSubFeature == aFeature)
 265       continue;
 266     AttributeRefAttrPtr aRAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 267         aSubFeature->attribute(SketchPlugin_ConstraintRigid::ENTITY_A()));
 268     if (aRefAttr->isObject()) {
 269       if (aRefAttr->object() == aRAttr->object()) {
 270         ObjectPtr anObject = aRefAttr->object();
 271         std::string aName = anObject.get() ? anObject->data()->name() : "";
 272         theError = "The object %1 has been already fixed.";
 273         theError.arg(aName);
 274         return false;
 275       }
 276     }
 277     else if (aRefAttr->attr() == aRAttr->attr()) {
 278       AttributePtr anAttribute = aRefAttr->attr();
 279       std::string aName = anAttribute.get() ? anAttribute->id() : "";
 280       theError = "The attribute %1 has been already fixed.";
 281       theError.arg(aName);
 282       return false;
 283     }
 284   }
 285   return true;
 286 }
 287
 288 bool SketchPlugin_EqualAttrValidator::isValid(const AttributePtr& theAttribute,
 289                                               const std::list<std::string>& theArguments,
 290                                               Events_InfoMessage& theError) const
 291 {
 292   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 293     theError = "The attribute with the %1 type is not processed";
 294     theError.arg(theAttribute->attributeType());
 295     return false;
 296   }
 297
 298   std::string aParamA = theArguments.front();
 299   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 300   AttributeRefAttrPtr aRefAttr[2];
 301   aRefAttr[0] = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 302   aRefAttr[1] = aFeature->data()->refattr(aParamA);
 303
 304   if (!aRefAttr[0]->isObject() || !aRefAttr[1]->isObject()) {
 305     theError = "Attributes can not be used in equal constraint";
 306     return false;
 307   }
 308
 309   std::string aType[2];
 310   std::list<std::string> anArguments;
 311   for (int i = 0; i < 2; i++) {
 312     aFeature = ModelAPI_Feature::feature(aRefAttr[i]->object());
 313     if (!aFeature.get())
 314       return true;
 315
 316     aType[i] = aFeature->getKind();
 317     if (aFeature->getKind() != SketchPlugin_Line::ID() &&
 318         aFeature->getKind() != SketchPlugin_Circle::ID() &&
 319         aFeature->getKind() != SketchPlugin_Arc::ID() &&
 320         aFeature->getKind() != SketchPlugin_Ellipse::ID() &&
 321         aFeature->getKind() != SketchPlugin_EllipticArc::ID()) {
 322       theError = "The %1 feature is not supported by the Equal constraint.";
 323       theError.arg(aFeature->getKind());
 324       // wrong type of attribute
 325       return false;
 326     }
 327   }
 328
 329   bool isOk = aType[0] == aType[1];
 330   if (!isOk) {
 331     // circle and arc may be equal
 332     isOk = (aType[0] == SketchPlugin_Arc::ID() && aType[1] == SketchPlugin_Circle::ID())
 333         || (aType[0] == SketchPlugin_Circle::ID() && aType[1] == SketchPlugin_Arc::ID());
 334   }
 335   if (!isOk) {
 336     // ellipse and elliptic arc may be equal
 337     isOk = (aType[0] == SketchPlugin_EllipticArc::ID() && aType[1] == SketchPlugin_Ellipse::ID())
 338         || (aType[0] == SketchPlugin_Ellipse::ID() && aType[1] == SketchPlugin_EllipticArc::ID());
 339   }
 340   if (!isOk) {
 341     theError = "Features with kinds %1 and %2 can not be equal.";
 342     theError.arg(aType[0]).arg(aType[1]);
 343     return false;
 344   }
 345   return true;
 346 }
 347
 348 bool SketchPlugin_MirrorAttrValidator::isValid(const AttributePtr& theAttribute,
 349                                                const std::list<std::string>& theArguments,
 350                                                Events_InfoMessage& theError) const
 351 {
 352   if (theAttribute->attributeType() != ModelAPI_AttributeRefList::typeId()) {
 353     theError = "The attribute with the %1 type is not processed";
 354     theError.arg(theAttribute->attributeType());
 355     return false;
 356   }
 357
 358   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 359   AttributeRefListPtr aSelAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(theAttribute);
 360
 361   AttributeRefListPtr aRefListOfMirrored = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 362       aFeature->attribute(SketchPlugin_Constraint::ENTITY_C()));
 363   std::list<ObjectPtr> aMirroredObjects = aRefListOfMirrored->list();
 364
 365   for(int anInd = 0; anInd < aSelAttr->size(); anInd++) {
 366     ObjectPtr aSelObject = aSelAttr->object(anInd);
 367     std::string aName = aSelObject.get() ? aSelObject->data()->name() : "";
 368     std::list<ObjectPtr>::iterator aMirIter = aMirroredObjects.begin();
 369     for (; aMirIter != aMirroredObjects.end(); aMirIter++)
 370       if (aSelObject == *aMirIter) {
 371         theError = "The object %1 is a result of mirror";
 372         theError.arg(aName);
 373         return false;
 374       }
 375   }
 376   return true;
 377 }
 378
 379 bool SketchPlugin_CoincidenceAttrValidator::isValid(const AttributePtr& theAttribute,
 380                                                     const std::list<std::string>& theArguments,
 381                                                     Events_InfoMessage& theError) const
 382 {
 383   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 384     theError = "The attribute with the %1 type is not processed";
 385     theError.arg(theAttribute->attributeType());
 386     return false;
 387   }
 388
 389   // there is a check whether the feature contains a point and a linear edge or two point values
 390   std::string aParamA = theArguments.front();
 391   SessionPtr aMgr = ModelAPI_Session::get();
 392   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 393
 394   FeaturePtr aConstraint = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 395   AttributeRefAttrPtr aRefAttrA = aConstraint->data()->refattr(aParamA);
 396   if (!aRefAttrA) {
 397     theError = "The %1 attribute should be %2";
 398     theError.arg(aParamA).arg(ModelAPI_AttributeRefAttr::typeId());
 399     return false;
 400   }
 401
 402   AttributeRefAttrPtr aRefAttrB =
 403     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 404
 405   // first attribute is a point, it may coincide with any object
 406   if (!aRefAttrA->isObject())
 407     return true;
 408   else {
 409     ObjectPtr anObject = aRefAttrA->object();
 410     if (!anObject.get()) {
 411       theError = "%1 attribute has an empty object";
 412       theError.arg(aParamA);
 413       return false;
 414     }
 415     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrA->object());
 416     if (!aFeature.get()) {
 417       theError = "%1 attribute has an empty feature";
 418       theError.arg(aParamA);
 419       return false;
 420     }
 421
 422     if (aFeature->getKind() == SketchPlugin_Point::ID())
 423       return true;
 424   }
 425
 426   // second attribute is a point, it may coincide with any object
 427   if (!aRefAttrB->isObject())
 428     return true;
 429   else {
 430     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrB->object());
 431     if (!aFeature) {
 432       theError = "%1 attribute has an empty object";
 433       theError.arg(theAttribute->id());
 434       return false;
 435     }
 436     if (aFeature->getKind() == SketchPlugin_Point::ID())
 437       return true;
 438   }
 439   theError = "There is no an attribute filled by a point";
 440   return false;
 441 }
 442
 443
 444 bool SketchPlugin_CopyValidator::isValid(const AttributePtr& theAttribute,
 445                                          const std::list<std::string>& theArguments,
 446                                          Events_InfoMessage& theError) const
 447 {
 448   if (theAttribute->attributeType() != ModelAPI_AttributeRefList::typeId()) {
 449     theError = "The attribute with the %1 type is not processed";
 450     theError.arg(theAttribute->attributeType());
 451     return false;
 452   }
 453
 454   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 455   AttributeRefListPtr aSelAttr =
 456     std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(theAttribute);
 457
 458   AttributeRefListPtr aRefListOfInitial = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 459       aFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
 460   AttributeRefListPtr aRefListOfCopied = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 461       aFeature->attribute(SketchPlugin_Constraint::ENTITY_B()));
 462   std::list<ObjectPtr> anInitialObjects = aRefListOfInitial->list();
 463   std::list<ObjectPtr> aCopiedObjects = aRefListOfCopied->list();
 464
 465   std::list<ObjectPtr>::iterator anObjIter;
 466   for(int anInd = 0; anInd < aSelAttr->size(); anInd++) {
 467     ObjectPtr aSelObject = aSelAttr->object(anInd);
 468     anObjIter = anInitialObjects.begin();
 469     for (; anObjIter != anInitialObjects.end(); anObjIter++)
 470       if (aSelObject == *anObjIter)
 471         break;
 472     if (anObjIter != anInitialObjects.end())
 473       continue;
 474     anObjIter = aCopiedObjects.begin();
 475     for (; anObjIter != aCopiedObjects.end(); anObjIter++)
 476       if (aSelObject == *anObjIter) {
 477         std::string aName = aSelObject.get() ? aSelObject->data()->name() : "";
 478         theError = "The object %1 is a result of copy";
 479         theError.arg(aName);
 480         return false;
 481       }
 482   }
 483   return true;
 484 }
 485
 486 bool SketchPlugin_SolverErrorValidator::isValid(
 487   const std::shared_ptr<ModelAPI_Feature>& theFeature,
 488   const std::list<std::string>& theArguments,
 489   Events_InfoMessage& theError) const
 490 {
 491   AttributeStringPtr aAttributeString = theFeature->string(SketchPlugin_Sketch::SOLVER_ERROR());
 492
 493   if (!aAttributeString->value().empty()) {
 494     theError = aAttributeString->value();
 495     return false;
 496   }
 497
 498   return true;
 499 }
 500
 501 bool SketchPlugin_SolverErrorValidator::isNotObligatory(std::string theFeature,
 502                                                         std::string theAttribute)
 503 {
 504   return true;
 505 }
 506
 507 static bool hasSameTangentFeature(const std::set<AttributePtr>& theRefsList,
 508                                   const FeaturePtr theFeature)
 509 {
 510   for(std::set<AttributePtr>::const_iterator
 511       anIt = theRefsList.cbegin(); anIt != theRefsList.cend(); ++anIt) {
 512     std::shared_ptr<ModelAPI_Attribute> aAttr = (*anIt);
 513     FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aAttr->owner());
 514     if (!aFeature)
 515       continue;
 516     if (aFeature->getKind() == SketchPlugin_ConstraintTangent::ID()) {
 517       AttributeRefAttrPtr anAttrRefA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 518         aFeature->attribute(SketchPlugin_ConstraintTangent::ENTITY_A()));
 519       AttributeRefAttrPtr anAttrRefB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 520         aFeature->attribute(SketchPlugin_ConstraintTangent::ENTITY_B()));
 521       if(anAttrRefA.get()) {
 522         ResultPtr aResA = std::dynamic_pointer_cast<ModelAPI_Result>(anAttrRefA->object());
 523         if(aResA.get()) {
 524           DocumentPtr aDoc = aResA->document();
 525           if(aDoc.get()) {
 526             FeaturePtr aFeatureA = aDoc->feature(aResA);
 527             if(aFeatureA.get() && aFeatureA == theFeature) {
 528               return true;
 529             }
 530           }
 531         }
 532       }
 533       if(anAttrRefB.get()) {
 534         ResultPtr aResB = std::dynamic_pointer_cast<ModelAPI_Result>(anAttrRefB->object());
 535         if(aResB.get()) {
 536           DocumentPtr aDoc = aResB->document();
 537           if(aDoc.get()) {
 538             FeaturePtr aFeatureB = aDoc->feature(aResB);
 539             if(aFeatureB.get() && aFeatureB == theFeature) {
 540               return true;
 541             }
 542           }
 543         }
 544       }
 545     }
 546   }
 547   return false;
 548 }
 549
 550 static bool isPointPointCoincidence(const FeaturePtr& theCoincidence)
 551 {
 552   AttributeRefAttrPtr aRefAttr[2] = {
 553       theCoincidence->refattr(SketchPlugin_Constraint::ENTITY_A()),
 554       theCoincidence->refattr(SketchPlugin_Constraint::ENTITY_B())
 555   };
 556
 557   bool arePoints = true;
 558   for (int i = 0; i < 2 && arePoints; ++i) {
 559     if (aRefAttr[i]->isObject()) {
 560       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr[i]->object());
 561       arePoints = aFeature.get() && aFeature->getKind() == SketchPlugin_Point::ID();
 562     } else
 563       arePoints = aRefAttr[i]->attr().get() != NULL;
 564   }
 565   return arePoints;
 566 }
 567
 568 bool SketchPlugin_FilletVertexValidator::isValid(const AttributePtr& theAttribute,
 569                                                  const std::list<std::string>& theArguments,
 570                                                  Events_InfoMessage& theError) const
 571 {
 572   AttributeRefAttrPtr aPointRefAttr =
 573     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 574   if(!aPointRefAttr.get()) {
 575     theError = "Error: Point not selected.";
 576     return false;
 577   }
 578
 579   AttributePtr aPointAttribute = aPointRefAttr->attr();
 580   if (!aPointAttribute.get()) {
 581     theError = "Error: Bad point selected.";
 582     return false;
 583   }
 584   std::shared_ptr<GeomAPI_Pnt2d> aSelectedPnt =
 585     std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aPointAttribute)->pnt();
 586
 587   // Obtain constraint coincidence for the fillet point.
 588   const std::set<AttributePtr>& aRefsList = aPointAttribute->owner()->data()->refsToMe();
 589   FeaturePtr aConstraintCoincidence;
 590   for(std::set<AttributePtr>::const_iterator anIt = aRefsList.cbegin();
 591       anIt != aRefsList.cend(); ++anIt) {
 592     std::shared_ptr<ModelAPI_Attribute> aAttr = (*anIt);
 593     FeaturePtr aConstrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aAttr->owner());
 594     if (aConstrFeature->getKind() == SketchPlugin_ConstraintCoincidence::ID()) {
 595       if (!isPointPointCoincidence(aConstrFeature))
 596         continue;
 597
 598       AttributeRefAttrPtr anAttrRefA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 599         aConstrFeature->attribute(SketchPlugin_ConstraintCoincidence::ENTITY_A()));
 600       AttributeRefAttrPtr anAttrRefB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 601         aConstrFeature->attribute(SketchPlugin_ConstraintCoincidence::ENTITY_B()));
 602
 603       AttributePtr anAttrA = anAttrRefA->attr();
 604       if(aPointAttribute == anAttrA) {
 605         aConstraintCoincidence = aConstrFeature;
 606         break;
 607       }
 608
 609       AttributePtr anAttrB = anAttrRefB->attr();
 610       if(aPointAttribute == anAttrB) {
 611         aConstraintCoincidence = aConstrFeature;
 612         break;
 613       }
 614     }
 615   }
 616
 617   if(!aConstraintCoincidence.get()) {
 618     theError = "Error: one of the selected point does not have coincidence.";
 619     return false;
 620   }
 621
 622   // Get coincides from constraint.
 623   std::set<FeaturePtr> aCoinsides;
 624   SketchPlugin_Tools::findCoincidences(aConstraintCoincidence,
 625                                         SketchPlugin_ConstraintCoincidence::ENTITY_A(),
 626                                         aCoinsides,
 627                                         true);
 628   SketchPlugin_Tools::findCoincidences(aConstraintCoincidence,
 629                                         SketchPlugin_ConstraintCoincidence::ENTITY_B(),
 630                                         aCoinsides,
 631                                         true);
 632
 633   // Remove points and external lines from set of coincides.
 634   std::set<FeaturePtr> aNewSetOfCoincides;
 635   for(std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 636       anIt != aCoinsides.end(); ++anIt) {
 637     std::shared_ptr<SketchPlugin_SketchEntity> aSketchEntity =
 638       std::dynamic_pointer_cast<SketchPlugin_SketchEntity>(*anIt);
 639     if(aSketchEntity.get() && (aSketchEntity->isCopy() || aSketchEntity->isExternal())) {
 640       continue;
 641     }
 642     if((*anIt)->getKind() != SketchPlugin_Line::ID() &&
 643         (*anIt)->getKind() != SketchPlugin_Arc::ID()) {
 644           continue;
 645     }
 646     if((*anIt)->getKind() == SketchPlugin_Arc::ID()) {
 647       AttributePtr anArcCenter = (*anIt)->attribute(SketchPlugin_Arc::CENTER_ID());
 648       std::shared_ptr<GeomAPI_Pnt2d> anArcCenterPnt =
 649         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anArcCenter)->pnt();
 650       double aDistSelectedArcCenter = aSelectedPnt->distance(anArcCenterPnt);
 651       if(aDistSelectedArcCenter < tolerance) {
 652         continue;
 653       }
 654     }
 655     aNewSetOfCoincides.insert(*anIt);
 656   }
 657   aCoinsides = aNewSetOfCoincides;
 658
 659   // If we still have more than two coincides remove auxilary entities from set of coincides.
 660   if(aCoinsides.size() > 2) {
 661     aNewSetOfCoincides.clear();
 662     for(std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 663         anIt != aCoinsides.end(); ++anIt) {
 664       if(!(*anIt)->boolean(SketchPlugin_SketchEntity::AUXILIARY_ID())->value()) {
 665         aNewSetOfCoincides.insert(*anIt);
 666       }
 667     }
 668     aCoinsides = aNewSetOfCoincides;
 669   }
 670
 671   if(aCoinsides.size() != 2) {
 672     theError = "Error: One of the selected points does not have two suitable edges for fillet.";
 673     return false;
 674   }
 675
 676   // Check that selected edges don't have tangent constraint.
 677   std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 678   FeaturePtr aFirstFeature = *anIt++;
 679   FeaturePtr aSecondFeature = *anIt;
 680   const std::set<AttributePtr>& aFirstFeatureRefsList = aFirstFeature->data()->refsToMe();
 681   if(hasSameTangentFeature(aFirstFeatureRefsList, aSecondFeature)) {
 682     theError = "Error: Edges in selected point has tangent constraint.";
 683     return false;
 684   }
 685
 686   std::list<ResultPtr> aFirstResults = aFirstFeature->results();
 687   for(std::list<ResultPtr>::iterator aResIt = aFirstResults.begin();
 688       aResIt != aFirstResults.end(); ++aResIt) {
 689     ResultPtr aRes = *aResIt;
 690     const std::set<AttributePtr>& aResRefsList = aRes->data()->refsToMe();
 691     if(hasSameTangentFeature(aResRefsList, aSecondFeature)) {
 692       theError = "Error: Edges in selected point has tangent constraint.";
 693       return false;
 694     }
 695   }
 696
 697   // Check the features are not tangent
 698   std::shared_ptr<GeomAPI_Shape> aFirstShape = aFirstFeature->lastResult()->shape();
 699   std::shared_ptr<GeomAPI_Shape> aSecondShape = aSecondFeature->lastResult()->shape();
 700   if (!aFirstShape || !aFirstShape->isEdge() ||
 701       !aSecondShape || !aSecondShape->isEdge()) {
 702     theError = "Error: At least on of the features is not an edge";
 703     return false;
 704   }
 705
 706   std::shared_ptr<GeomAPI_Edge> anEdge1 = std::dynamic_pointer_cast<GeomAPI_Edge>(aFirstShape);
 707   std::shared_ptr<GeomAPI_Edge> anEdge2 = std::dynamic_pointer_cast<GeomAPI_Edge>(aSecondShape);
 708
 709   static const double TOL = 1.e-7;
 710   if (anEdge1->isLine() && anEdge2->isLine()) {
 711     // Check that lines not collinear
 712     std::shared_ptr<GeomAPI_Dir> aDir1 = anEdge1->line()->direction();
 713     std::shared_ptr<GeomAPI_Dir> aDir2 = anEdge2->line()->direction();
 714     double aCross = aDir1->cross(aDir2)->squareModulus();
 715     if (aCross < TOL * TOL)
 716       return false;
 717   } else if (anEdge1->isArc() && anEdge2->isArc()) {
 718     // check the circles are not tangent
 719     std::shared_ptr<GeomAPI_Circ> aCirc1 = anEdge1->circle();
 720     std::shared_ptr<GeomAPI_Circ> aCirc2 = anEdge2->circle();
 721     double aDistCC = aCirc1->center()->distance(aCirc2->center());
 722     double aRadSum = aCirc1->radius() + aCirc2->radius();
 723     double aRadDiff = fabs(aCirc1->radius() - aCirc2->radius());
 724     if (fabs(aDistCC - aRadSum) < TOL || fabs(aDistCC - aRadDiff) < TOL)
 725       return false;
 726   } else {
 727     // check whether line and arc are tangent
 728     std::shared_ptr<GeomAPI_Circ> aCirc;
 729     std::shared_ptr<GeomAPI_Lin> aLine;
 730     if (anEdge1->isLine()) {
 731       aLine = anEdge1->line();
 732       aCirc = anEdge2->circle();
 733     } else {
 734       aCirc = anEdge1->circle();
 735       aLine = anEdge2->line();
 736     }
 737
 738     double aDistCL = aLine->distance(aCirc->center());
 739     if (fabs(aDistCL - aCirc->radius()) < TOL)
 740       return false;
 741   }
 742
 743   return true;
 744 }
 745
 746 bool SketchPlugin_MiddlePointAttrValidator::isValid(const AttributePtr& theAttribute,
 747                                                     const std::list<std::string>& theArguments,
 748                                                     Events_InfoMessage& theError) const
 749 {
 750   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 751     theError = "The attribute with the %1 type is not processed";
 752     theError.arg(theAttribute->attributeType());
 753     return false;
 754   }
 755
 756   // there is a check whether the feature contains a point and a linear edge or two point values
 757   std::string aParamA = theArguments.front();
 758   SessionPtr aMgr = ModelAPI_Session::get();
 759   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 760
 761   FeaturePtr anAttributeFeature =
 762     std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 763   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 764   AttributeRefAttrPtr anOtherAttr = anAttributeFeature->data()->refattr(aParamA);
 765
 766   AttributeRefAttrPtr aRefAttrs[2] = {aRefAttr, anOtherAttr};
 767   int aNbPoints = 0;
 768   int aNbLines = 0;
 769   for (int i = 0; i < 2; ++i) {
 770     if (!aRefAttrs[i]->isObject())
 771       ++aNbPoints;
 772     else {
 773       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrs[i]->object());
 774       if (!aFeature) {
 775         if (aNbPoints + aNbLines != 0)
 776           return true;
 777         else continue;
 778       }
 779
 780       if (aFeature->getKind() == SketchPlugin_Point::ID())
 781         ++aNbPoints;
 782       else if (aFeature->getKind() == SketchPlugin_Line::ID() ||
 783                aFeature->getKind() == SketchPlugin_Arc::ID() ||
 784                aFeature->getKind() == SketchPlugin_EllipticArc::ID())
 785         ++aNbLines;
 786     }
 787   }
 788
 789   if (aNbPoints != 1 || aNbLines != 1) {
 790     theError = "Middle point constraint allows points and lines only";
 791     return false;
 792   }
 793   return true;
 794 }
 795
 796 bool SketchPlugin_ArcTangentPointValidator::isValid(const AttributePtr& theAttribute,
 797                                                     const std::list<std::string>& /*theArguments*/,
 798                                                     Events_InfoMessage& theError) const
 799 {
 800   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 801     theError = "The attribute with the %1 type is not processed";
 802     theError.arg(theAttribute->attributeType());
 803     return false;
 804   }
 805   FeaturePtr anOwner = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 806   AttributeStringPtr anArcTypeAttr = anOwner->string(SketchPlugin_MacroArc::ARC_TYPE());
 807   if (anArcTypeAttr && anArcTypeAttr->value() != SketchPlugin_MacroArc::ARC_TYPE_BY_TANGENT_EDGE())
 808     return true; // not applicable for non-tangent arcs
 809
 810   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 811   AttributePtr anAttr = aRefAttr->attr();
 812   if (!anAttr) {
 813     theError = "The attribute %1 should be a point";
 814     theError.arg(theAttribute->id());
 815     return false;
 816   }
 817
 818   FeaturePtr anAttrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(anAttr->owner());
 819   const std::string& aFeatureType = anAttrFeature->getKind();
 820   if (aFeatureType == SketchPlugin_Arc::ID()) {
 821     // selected point should not be a center of arc
 822     const std::string& aPntId = anAttr->id();
 823     if (aPntId != SketchPlugin_Arc::START_ID() && aPntId != SketchPlugin_Arc::END_ID()) {
 824       theError = "The attribute %1 is not supported";
 825       theError.arg(aPntId);
 826       return false;
 827     }
 828   }
 829   else if (aFeatureType == SketchPlugin_Line::ID()) {
 830     // selected point should be bound point of line
 831     const std::string& aPntId = anAttr->id();
 832     if (aPntId != SketchPlugin_Line::START_ID() && aPntId != SketchPlugin_Line::END_ID()) {
 833       theError = "The attribute %1 is not supported";
 834       theError.arg(aPntId);
 835       return false;
 836     }
 837   }
 838   else {
 839     theError = "Unable to build tangent arc on %1";
 840     theError.arg(anAttrFeature->getKind());
 841     return false;
 842   }
 843
 844   return true;
 845 }
 846
 847 bool SketchPlugin_ArcTransversalPointValidator::isValid(
 848     const AttributePtr& theAttribute,
 849     const std::list<std::string>& /*theArguments*/,
 850     Events_InfoMessage& theError) const
 851 {
 852   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 853     theError = "The attribute with the %1 type is not processed";
 854     theError.arg(theAttribute->attributeType());
 855     return false;
 856   }
 857   FeaturePtr anOwner = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 858   AttributeStringPtr anArcTypeAttr = anOwner->string(SketchPlugin_MacroArc::ARC_TYPE());
 859   if (anArcTypeAttr &&
 860       anArcTypeAttr->value() != SketchPlugin_MacroArc::ARC_TYPE_BY_TRANSVERSAL_LINE())
 861     return true; // not applicable for non-transversal arcs
 862
 863   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 864   AttributePtr anAttr = aRefAttr->attr();
 865   if (!anAttr) {
 866     theError = "The attribute %1 should be a point";
 867     theError.arg(theAttribute->id());
 868     return false;
 869   }
 870
 871   FeaturePtr anAttrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(anAttr->owner());
 872   const std::string& aFeatureType = anAttrFeature->getKind();
 873   if (aFeatureType == SketchPlugin_Line::ID()) {
 874     // selected point should be bound point of line
 875     const std::string& aPntId = anAttr->id();
 876     if (aPntId != SketchPlugin_Line::START_ID() && aPntId != SketchPlugin_Line::END_ID()) {
 877       theError = "The attribute %1 is not supported";
 878       theError.arg(aPntId);
 879       return false;
 880     }
 881   }
 882   else {
 883     theError = "Unable to build perpendicular arc on %1";
 884     theError.arg(anAttrFeature->getKind());
 885     return false;
 886   }
 887
 888   return true;
 889 }
 890
 891 bool SketchPlugin_IntersectionValidator::isValid(const AttributePtr& theAttribute,
 892                                                  const std::list<std::string>& theArguments,
 893                                                  Events_InfoMessage& theError) const
 894 {
 895   if (theAttribute->attributeType() != ModelAPI_AttributeSelection::typeId()) {
 896     theError = "The attribute with the %1 type is not processed";
 897     theError.arg(theAttribute->attributeType());
 898     return false;
 899   }
 900   AttributeSelectionPtr anExternalAttr =
 901       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(theAttribute);
 902   std::shared_ptr<GeomAPI_Edge> anEdge;
 903   if (anExternalAttr && anExternalAttr->value() && anExternalAttr->value()->isEdge()) {
 904     anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(anExternalAttr->value()));
 905   } else if(anExternalAttr->context() && anExternalAttr->context()->shape() &&
 906             anExternalAttr->context()->shape()->isEdge()) {
 907     anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(anExternalAttr->context()->shape()));
 908   }
 909
 910   if (!anEdge) {
 911     theError = "The attribute %1 should be an edge";
 912     theError.arg(theAttribute->id());
 913     return false;
 914   }
 915
 916   // find a sketch
 917   std::shared_ptr<SketchPlugin_Sketch> aSketch;
 918   std::set<AttributePtr> aRefs = anExternalAttr->owner()->data()->refsToMe();
 919   std::set<AttributePtr>::const_iterator anIt = aRefs.begin();
 920   for (; anIt != aRefs.end(); ++anIt) {
 921     CompositeFeaturePtr aComp =
 922         std::dynamic_pointer_cast<ModelAPI_CompositeFeature>((*anIt)->owner());
 923     if (aComp && aComp->getKind() == SketchPlugin_Sketch::ID()) {
 924       aSketch = std::dynamic_pointer_cast<SketchPlugin_Sketch>(aComp);
 925       break;
 926     }
 927   }
 928   if (!aSketch) {
 929     theError = "There is no sketch referring to the current feature";
 930     return false;
 931   }
 932
 933   // check the edge is intersected with sketch plane
 934   std::shared_ptr<GeomAPI_Pln> aPlane = aSketch->plane();
 935
 936   std::list<GeomPointPtr> anIntersectionsPoints;
 937   anEdge->intersectWithPlane(aPlane, anIntersectionsPoints);
 938   if (anIntersectionsPoints.empty()) {
 939     theError = "The edge is not intersected with sketch plane";
 940     return false;
 941   }
 942   return true;
 943 }
 944
 945 bool SketchPlugin_SplitValidator::isValid(const AttributePtr& theAttribute,
 946                                           const std::list<std::string>& theArguments,
 947                                           Events_InfoMessage& theError) const
 948 {
 949   bool aValid = false;
 950
 951   if (theAttribute->attributeType() != ModelAPI_AttributeReference::typeId()) {
 952     theError = "The attribute with the %1 type is not processed";
 953     theError.arg(theAttribute->attributeType());
 954     return aValid;
 955   }
 956   AttributeReferencePtr aFeatureAttr =
 957             std::dynamic_pointer_cast<ModelAPI_AttributeReference>(theAttribute);
 958   std::shared_ptr<SketchPlugin_Feature> aSplitFeature =
 959     std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
 960
 961   ObjectPtr anAttrObject = aFeatureAttr->value();
 962   if (!anAttrObject) {
 963     AttributePtr aPreviewAttr = aSplitFeature->attribute(SketchPlugin_Trim::PREVIEW_OBJECT());
 964     aFeatureAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(aPreviewAttr);
 965     anAttrObject = aFeatureAttr->value();
 966   }
 967
 968   FeaturePtr anAttrFeature = ModelAPI_Feature::feature(anAttrObject);
 969   if (!anAttrFeature)
 970     return aValid;
 971
 972   std::set<ResultPtr> anEdgeShapes;
 973   ModelGeomAlgo_Shape::shapesOfType(anAttrFeature, GeomAPI_Shape::EDGE, anEdgeShapes);
 974   if (anEdgeShapes.empty() || anEdgeShapes.size() > 1 /*there case has not existed yet*/)
 975     return aValid;
 976
 977   // coincidences to the feature
 978   std::set<std::shared_ptr<GeomDataAPI_Point2D> > aRefAttributes;
 979   ModelGeomAlgo_Point2D::getPointsOfReference(anAttrFeature,
 980                       SketchPlugin_ConstraintCoincidence::ID(),
 981                       aRefAttributes, SketchPlugin_Point::ID(), SketchPlugin_Point::COORD_ID());
 982
 983   GeomShapePtr anAttrShape = (*anEdgeShapes.begin())->shape();
 984   std::shared_ptr<SketchPlugin_Feature> aSFeature =
 985                                 std::dynamic_pointer_cast<SketchPlugin_Feature>(anAttrFeature);
 986   if (!aSFeature || aSFeature->isCopy())
 987     return false;
 988   SketchPlugin_Sketch* aSketch = aSFeature->sketch();
 989
 990   std::shared_ptr<ModelAPI_Data> aData = aSketch->data();
 991   std::shared_ptr<GeomDataAPI_Point> aC = std::dynamic_pointer_cast<GeomDataAPI_Point>(
 992       aData->attribute(SketchPlugin_Sketch::ORIGIN_ID()));
 993   std::shared_ptr<GeomDataAPI_Dir> aX = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
 994       aData->attribute(SketchPlugin_Sketch::DIRX_ID()));
 995   std::shared_ptr<GeomDataAPI_Dir> aNorm = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
 996       aData->attribute(SketchPlugin_Sketch::NORM_ID()));
 997   std::shared_ptr<GeomAPI_Dir> aDirY(new GeomAPI_Dir(aNorm->dir()->cross(aX->dir())));
 998
 999   typedef std::map<std::shared_ptr<GeomAPI_Pnt>,
1000                     std::pair<std::list<std::shared_ptr<GeomDataAPI_Point2D> >,
1001                               std::list<std::shared_ptr<ModelAPI_Object> > > > PointToRefsMap;
1002   PointToRefsMap aPointsInfo;
1003
1004   ModelGeomAlgo_Point2D::getPointsInsideShape(anAttrShape, aRefAttributes, aC->pnt(),
1005                                               aX->dir(), aDirY, aPointsInfo);
1006   int aCoincidentToFeature = (int)aPointsInfo.size();
1007   if (anAttrFeature->getKind() == SketchPlugin_Circle::ID() ||
1008       anAttrFeature->getKind() == SketchPlugin_Ellipse::ID())
1009     aValid = aCoincidentToFeature >= 2;
1010   else
1011     aValid = aCoincidentToFeature >= 1;
1012
1013   return aValid;
1014 }
1015
1016 bool SketchPlugin_TrimValidator::isValid(const AttributePtr& theAttribute,
1017                                          const std::list<std::string>& theArguments,
1018                                          Events_InfoMessage& theError) const
1019 {
1020   bool aValid = false;
1021
1022   if (theAttribute->attributeType() != ModelAPI_AttributeReference::typeId()) {
1023     theError = "The attribute with the %1 type is not processed";
1024     theError.arg(theAttribute->attributeType());
1025     return aValid;
1026   }
1027   AttributeReferencePtr aBaseObjectAttr =
1028             std::dynamic_pointer_cast<ModelAPI_AttributeReference>(theAttribute);
1029
1030   std::shared_ptr<SketchPlugin_Feature> aTrimFeature =
1031                  std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
1032
1033   ObjectPtr aBaseObject = aBaseObjectAttr->value();
1034   if (!aBaseObject) {
1035     AttributePtr aPreviewAttr = aTrimFeature->attribute(SketchPlugin_Trim::PREVIEW_OBJECT());
1036     aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(aPreviewAttr);
1037     aBaseObject = aBaseObjectAttr->value();
1038   }
1039
1040   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObject);
1041   if (!aBaseFeature)
1042     return aValid;
1043
1044   std::shared_ptr<SketchPlugin_Feature> aSketchFeature =
1045                                  std::dynamic_pointer_cast<SketchPlugin_Feature>(aBaseFeature);
1046   if (!aSketchFeature.get() || aSketchFeature->isCopy())
1047     return aValid;
1048
1049   // point on feature
1050   AttributePoint2DPtr aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1051                        aTrimFeature->data()->attribute(SketchPlugin_Trim::PREVIEW_POINT()));
1052
1053   SketchPlugin_Sketch* aSketch = aTrimFeature->sketch();
1054
1055   std::shared_ptr<GeomAPI_Pnt2d> anAttributePnt2d = aPoint->pnt();
1056   std::shared_ptr<GeomAPI_Pnt> anAttributePnt = aSketch->to3D(anAttributePnt2d->x(),
1057                                                               anAttributePnt2d->y());
1058
1059   std::map<ObjectPtr, std::set<GeomShapePtr> > aCashedShapes;
1060   std::map<ObjectPtr, std::map<std::shared_ptr<GeomAPI_Pnt>,
1061            std::pair<std::list<std::shared_ptr<GeomDataAPI_Point2D> >,
1062                      std::list<std::shared_ptr<ModelAPI_Object> > > > > anObjectToPoints;
1063   SketchPlugin_SegmentationTools::fillObjectShapes(
1064       aTrimFeature.get(), aBaseObject, aCashedShapes, anObjectToPoints);
1065   const std::set<GeomShapePtr>& aShapes = aCashedShapes[aBaseObject];
1066
1067   return aShapes.size() > 1;
1068 }
1069
1070 bool SketchPlugin_ProjectionValidator::isValid(const AttributePtr& theAttribute,
1071                                                const std::list<std::string>& theArguments,
1072                                                Events_InfoMessage& theError) const
1073 {
1074   if (theAttribute->attributeType() != ModelAPI_AttributeSelection::typeId()) {
1075     theError = "The attribute with the %1 type is not processed";
1076     theError.arg(theAttribute->attributeType());
1077     return false;
1078   }
1079
1080   AttributeSelectionPtr aFeatureAttr =
1081       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(theAttribute);
1082   std::shared_ptr<GeomAPI_Edge> anEdge;
1083   std::shared_ptr<SketchPlugin_Feature> aSketchFeature;
1084   if (aFeatureAttr.get()) {
1085     GeomShapePtr aVal = aFeatureAttr->value();
1086     ResultPtr aRes = aFeatureAttr->context();
1087     if (aVal && aVal->isVertex())
1088       return true; // vertex is always could be projected
1089     if (aVal && aVal->isEdge()) {
1090       anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aFeatureAttr->value()));
1091     } else if(aRes && aRes->shape()) {
1092       if (aRes->shape()->isVertex())
1093         return true; // vertex is always could be projected
1094       else if (aRes->shape()->isEdge())
1095         anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aFeatureAttr->context()->shape()));
1096     }
1097
1098     // try to convert result to sketch feature
1099     if (aRes) {
1100       aSketchFeature =
1101         std::dynamic_pointer_cast<SketchPlugin_Feature>(ModelAPI_Feature::feature(aRes));
1102     }
1103   }
1104   if (!anEdge) {
1105     theError = "The attribute %1 should be an edge or vertex";
1106     theError.arg(theAttribute->id());
1107     return false;
1108   }
1109
1110   // find a sketch
1111   std::shared_ptr<SketchPlugin_Sketch> aSketch;
1112   std::set<AttributePtr> aRefs = theAttribute->owner()->data()->refsToMe();
1113   std::set<AttributePtr>::const_iterator anIt = aRefs.begin();
1114   for (; anIt != aRefs.end(); ++anIt) {
1115     CompositeFeaturePtr aComp =
1116         std::dynamic_pointer_cast<ModelAPI_CompositeFeature>((*anIt)->owner());
1117     if (aComp && aComp->getKind() == SketchPlugin_Sketch::ID()) {
1118       aSketch = std::dynamic_pointer_cast<SketchPlugin_Sketch>(aComp);
1119       break;
1120     }
1121   }
1122   if (!aSketch) {
1123     theError = "There is no sketch referring to the current feature";
1124     return false;
1125   }
1126   if (aSketchFeature && aSketch.get() == aSketchFeature->sketch()) {
1127     theError = "Unable to project feature from the same sketch";
1128     return false;
1129   }
1130
1131   std::shared_ptr<GeomAPI_Pln> aPlane = aSketch->plane();
1132   std::shared_ptr<GeomAPI_Dir> aNormal = aPlane->direction();
1133   std::shared_ptr<GeomAPI_Pnt> anOrigin = aPlane->location();
1134
1135   bool aValid = true;
1136   if (anEdge->isLine()) {
1137     std::shared_ptr<GeomAPI_Lin> aLine = anEdge->line();
1138     std::shared_ptr<GeomAPI_Dir> aLineDir = aLine->direction();
1139     double aDot = fabs(aNormal->dot(aLineDir));
1140     aValid = fabs(aDot - 1.0) >= tolerance * tolerance;
1141     if (!aValid)
1142       theError = "Error: Line is orthogonal to the sketch plane.";
1143   }
1144   else if (anEdge->isCircle() || anEdge->isArc()) {
1145     std::shared_ptr<GeomAPI_Circ> aCircle = anEdge->circle();
1146     std::shared_ptr<GeomAPI_Dir> aCircNormal = aCircle->normal();
1147     double aDot = fabs(aNormal->dot(aCircNormal));
1148     aValid = aDot >= tolerance * tolerance;
1149     if (!aValid)
1150       theError.arg(anEdge->isCircle() ? "Error: Circle is orthogonal to the sketch plane."
1151                                       : "Error: Arc is orthogonal to the sketch plane.");
1152   }
1153   else if (anEdge->isEllipse()) {
1154     std::shared_ptr<GeomAPI_Ellipse> anEllipse = anEdge->ellipse();
1155     std::shared_ptr<GeomAPI_Dir> anEllipseNormal = anEllipse->normal();
1156     double aDot = fabs(aNormal->dot(anEllipseNormal));
1157     aValid = fabs(aDot - 1.0) <= tolerance * tolerance;
1158     if (!aValid)
1159       theError.arg(anEdge->isClosed() ? "Error: Ellipse is orthogonal to the sketch plane."
1160                                       : "Error: Elliptic Arc is orthogonal to the sketch plane.");
1161   }
1162
1163   return aValid;
1164 }
1165
1166
1167 static std::set<FeaturePtr> common(const std::set<FeaturePtr>& theSet1,
1168                                    const std::set<FeaturePtr>& theSet2)
1169 {
1170   std::set<FeaturePtr> aCommon;
1171   if (theSet1.empty() || theSet2.empty())
1172     return aCommon;
1173
1174   std::set<FeaturePtr>::const_iterator anIt2 = theSet2.begin();
1175   for (; anIt2 != theSet2.end(); ++anIt2)
1176     if (theSet1.find(*anIt2) != theSet1.end())
1177       aCommon.insert(*anIt2);
1178   return aCommon;
1179 }
1180
1181 bool SketchPlugin_DifferentReferenceValidator::isValid(
1182     const AttributePtr& theAttribute,
1183     const std::list<std::string>& theArguments,
1184     Events_InfoMessage& theError) const
1185 {
1186   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1187
1188   int aNbFeaturesReferred = 0;
1189   int aNbAttributesReferred = 0;
1190   std::set<FeaturePtr> aCommonReferredFeatures;
1191
1192   // find all features referred by attributes listed in theArguments
1193   std::list<std::string>::const_iterator anArgIt = theArguments.begin();
1194   for (; anArgIt != theArguments.end(); ++anArgIt) {
1195     AttributeRefAttrPtr aRefAttr = anOwner->refattr(*anArgIt);
1196     if (!aRefAttr)
1197       continue;
1198
1199     std::set<FeaturePtr> aCoincidentFeatures;
1200     if (aRefAttr->isObject()) {
1201       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->object());
1202       if (aFeature) {
1203         aCoincidentFeatures.insert(aFeature);
1204         aNbFeaturesReferred += 1;
1205       }
1206     } else {
1207       AttributePoint2DPtr aPoint =
1208           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
1209       if (aPoint) {
1210         aCoincidentFeatures = SketchPlugin_Tools::findFeaturesCoincidentToPoint(aPoint);
1211         aNbAttributesReferred += 1;
1212       }
1213     }
1214
1215     if (aCommonReferredFeatures.empty())
1216       aCommonReferredFeatures = aCoincidentFeatures;
1217     else
1218       aCommonReferredFeatures = common(aCommonReferredFeatures, aCoincidentFeatures);
1219
1220     if (aCommonReferredFeatures.empty())
1221       return true;
1222   }
1223
1224   bool isOk = aNbFeaturesReferred < 1;
1225   if (aNbFeaturesReferred == 1) {
1226     if (aCommonReferredFeatures.size() == 1) {
1227       FeaturePtr aFeature = *aCommonReferredFeatures.begin();
1228       isOk = aNbAttributesReferred <= 1 ||
1229              aFeature->getKind() == SketchPlugin_Circle::ID() ||
1230              aFeature->getKind() == SketchPlugin_Arc::ID();
1231     } else
1232       isOk = false;
1233   }
1234
1235   if (!isOk)
1236     theError = "Attributes are referred to the same feature";
1237   return isOk;
1238 }
1239
1240 bool SketchPlugin_DifferentPointReferenceValidator::isValid(
1241     const AttributePtr& theAttribute,
1242     const std::list<std::string>& theArguments,
1243     Events_InfoMessage& theError) const
1244 {
1245   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1246   std::set<AttributePoint2DPtr> aReferredCoincidentPoints;
1247
1248   // find all points referred by attributes listed in theArguments
1249   bool hasRefsToPoints = false;
1250   std::list<std::string>::const_iterator anArgIt = theArguments.begin();
1251   for (; anArgIt != theArguments.end(); ++anArgIt) {
1252     AttributeRefAttrPtr aRefAttr = anOwner->refattr(*anArgIt);
1253     if (!aRefAttr)
1254       continue;
1255
1256     if (!aRefAttr->isObject()) {
1257       AttributePoint2DPtr aPoint =
1258           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
1259       if (aReferredCoincidentPoints.empty())
1260         aReferredCoincidentPoints = SketchPlugin_Tools::findPointsCoincidentToPoint(aPoint);
1261       else if (aReferredCoincidentPoints.find(aPoint) == aReferredCoincidentPoints.end())
1262         return true; // non-coincident point has been found
1263       else
1264         hasRefsToPoints = true;
1265     }
1266   }
1267
1268   if (hasRefsToPoints)
1269     theError = "Attributes are referred to the same point";
1270   return !hasRefsToPoints;
1271 }
1272
1273 bool SketchPlugin_CirclePassedPointValidator::isValid(
1274     const AttributePtr& theAttribute,
1275     const std::list<std::string>&,
1276     Events_InfoMessage& theError) const
1277 {
1278   static const std::string aErrorMessage(
1279       "Passed point refers to the same feature as a center point");
1280
1281   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1282
1283   AttributeRefAttrPtr aCenterRef =
1284       anOwner->refattr(SketchPlugin_MacroCircle::CENTER_POINT_REF_ID());
1285   AttributeRefAttrPtr aPassedRef =
1286       anOwner->refattr(SketchPlugin_MacroCircle::PASSED_POINT_REF_ID());
1287
1288   if (!aPassedRef->isObject())
1289     return true;
1290
1291   FeaturePtr aPassedFeature = ModelAPI_Feature::feature(aPassedRef->object());
1292   if (!aPassedFeature)
1293     return true;
1294
1295   if (aCenterRef->isObject()) {
1296     if (aCenterRef->object() == aPassedRef->object()) {
1297       theError = aErrorMessage;
1298       return false;
1299     }
1300   } else {
1301     AttributePoint2DPtr aCenterPoint =
1302         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aCenterRef->attr());
1303     if (aCenterPoint) {
1304       std::set<FeaturePtr> aCoincidentFeatures =
1305           SketchPlugin_Tools::findFeaturesCoincidentToPoint(aCenterPoint);
1306       // check one of coincident features is a feature referred by passed point
1307       std::set<FeaturePtr>::const_iterator anIt = aCoincidentFeatures.begin();
1308       for(; anIt != aCoincidentFeatures.end(); ++anIt)
1309         if (*anIt == aPassedFeature) {
1310           theError = aErrorMessage;
1311           return false;
1312         }
1313     }
1314   }
1315   return true;
1316 }
1317
1318 bool SketchPlugin_ThirdPointValidator::isValid(
1319     const AttributePtr& theAttribute,
1320     const std::list<std::string>& theArguments,
1321     Events_InfoMessage& theError) const
1322 {
1323   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1324   return arePointsNotOnLine(anOwner, theError) &&
1325          arePointsNotSeparated(anOwner, theArguments, theError);
1326 }
1327
1328 static std::shared_ptr<GeomAPI_Pnt2d> toPoint(const FeaturePtr& theMacroCircle,
1329                                               const std::string& thePointAttrName,
1330                                               const std::string& theRefPointAttrName)
1331 {
1332   AttributePoint2DPtr aPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1333       theMacroCircle->attribute(thePointAttrName));
1334   AttributeRefAttrPtr aRefAttr = theMacroCircle->refattr(theRefPointAttrName);
1335
1336   std::shared_ptr<GeomAPI_Pnt2d> aPoint = aPointAttr->pnt();
1337   if (aRefAttr) {
1338     if (aRefAttr->isObject()) {
1339       // project a point onto selected feature
1340       std::shared_ptr<SketchPlugin_Feature> aFeature =
1341           std::dynamic_pointer_cast<SketchPlugin_Feature>(
1342           ModelAPI_Feature::feature(aRefAttr->object()));
1343       if (aFeature) {
1344         SketchPlugin_Sketch* aSketch = aFeature->sketch();
1345         std::shared_ptr<GeomAPI_Edge> anEdge =
1346             std::dynamic_pointer_cast<GeomAPI_Edge>(aFeature->lastResult()->shape());
1347         if (anEdge) {
1348           std::shared_ptr<GeomAPI_Pnt> aPoint3D = aSketch->to3D(aPoint->x(), aPoint->y());
1349           if (anEdge->isLine())
1350             aPoint3D = anEdge->line()->project(aPoint3D);
1351           else if (anEdge->isCircle())
1352             aPoint3D = anEdge->circle()->project(aPoint3D);
1353           if(aPoint3D)
1354             aPoint = aSketch->to2D(aPoint3D);
1355         }
1356       }
1357     } else {
1358       AttributePoint2DPtr anOtherPoint =
1359           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
1360       if (anOtherPoint)
1361         aPoint = anOtherPoint->pnt(); // the reference point is much more precise, use it
1362     }
1363   }
1364
1365   return aPoint;
1366 }
1367
1368 static void threePointsOfFeature(const FeaturePtr& theMacroFeature,
1369                                  std::shared_ptr<GeomAPI_Pnt2d> thePoints[3])
1370 {
1371   if (theMacroFeature->getKind() == SketchPlugin_MacroCircle::ID()) {
1372     thePoints[0] = toPoint(theMacroFeature,
1373           SketchPlugin_MacroCircle::FIRST_POINT_ID(),
1374           SketchPlugin_MacroCircle::FIRST_POINT_REF_ID());
1375     thePoints[1] = toPoint(theMacroFeature,
1376           SketchPlugin_MacroCircle::SECOND_POINT_ID(),
1377           SketchPlugin_MacroCircle::SECOND_POINT_REF_ID());
1378     thePoints[2] = toPoint(theMacroFeature,
1379           SketchPlugin_MacroCircle::THIRD_POINT_ID(),
1380           SketchPlugin_MacroCircle::THIRD_POINT_REF_ID());
1381   } else if (theMacroFeature->getKind() == SketchPlugin_MacroArc::ID()) {
1382     thePoints[0] = toPoint(theMacroFeature,
1383           SketchPlugin_MacroArc::START_POINT_2_ID(),
1384           SketchPlugin_MacroArc::START_POINT_REF_ID());
1385     thePoints[1] = toPoint(theMacroFeature,
1386           SketchPlugin_MacroArc::END_POINT_2_ID(),
1387           SketchPlugin_MacroArc::END_POINT_REF_ID());
1388     thePoints[2] = toPoint(theMacroFeature,
1389           SketchPlugin_MacroArc::PASSED_POINT_ID(),
1390           SketchPlugin_MacroArc::PASSED_POINT_REF_ID());
1391   }
1392 }
1393
1394 static bool isPointsOnLine(const std::shared_ptr<GeomAPI_Pnt2d>& thePoint1,
1395                            const std::shared_ptr<GeomAPI_Pnt2d>& thePoint2,
1396                            const std::shared_ptr<GeomAPI_Pnt2d>& thePoint3)
1397 {
1398   static const double aTolerance = 1.e-7;
1399   if (thePoint1->distance(thePoint2) < aTolerance ||
1400       thePoint1->distance(thePoint3) < aTolerance)
1401     return true;
1402
1403   std::shared_ptr<GeomAPI_Dir2d> aDirP1P2(new GeomAPI_Dir2d(thePoint2->x() - thePoint1->x(),
1404                                                             thePoint2->y() - thePoint1->y()));
1405   std::shared_ptr<GeomAPI_Dir2d> aDirP1P3(new GeomAPI_Dir2d(thePoint3->x() - thePoint1->x(),
1406                                                             thePoint3->y() - thePoint1->y()));
1407   return fabs(aDirP1P2->cross(aDirP1P3)) < aTolerance;
1408 }
1409
1410 static bool isOnSameSide(const std::shared_ptr<GeomAPI_Lin>& theLine,
1411                          const std::shared_ptr<GeomAPI_Pnt>& thePoint1,
1412                          const std::shared_ptr<GeomAPI_Pnt>& thePoint2)
1413 {
1414   static const double aTolerance = 1.e-7;
1415   std::shared_ptr<GeomAPI_Dir> aLineDir = theLine->direction();
1416   std::shared_ptr<GeomAPI_XYZ> aLineLoc = theLine->location()->xyz();
1417
1418   std::shared_ptr<GeomAPI_XYZ> aVec1 = thePoint1->xyz()->decreased(aLineLoc);
1419   // the first point is on the line
1420   if (aVec1->squareModulus() < aTolerance * aTolerance)
1421     return false;
1422   std::shared_ptr<GeomAPI_Dir> aDirP1L(new GeomAPI_Dir(aVec1));
1423   std::shared_ptr<GeomAPI_XYZ> aVec2 = thePoint2->xyz()->decreased(aLineLoc);
1424   // the second point is on the line
1425   if (aVec2->squareModulus() < aTolerance * aTolerance)
1426     return false;
1427   std::shared_ptr<GeomAPI_Dir> aDirP2L(new GeomAPI_Dir(aVec2));
1428
1429   return aLineDir->cross(aDirP1L)->dot(aLineDir->cross(aDirP2L)) > -aTolerance;
1430 }
1431
1432 static bool isOnSameSide(const std::shared_ptr<GeomAPI_Circ>& theCircle,
1433                          const std::shared_ptr<GeomAPI_Pnt>&  thePoint1,
1434                          const std::shared_ptr<GeomAPI_Pnt>&  thePoint2)
1435 {
1436   static const double aTolerance = 1.e-7;
1437   std::shared_ptr<GeomAPI_Pnt> aCenter = theCircle->center();
1438   double aDistP1C = thePoint1->distance(aCenter);
1439   double aDistP2C = thePoint2->distance(aCenter);
1440   return (aDistP1C - theCircle->radius()) * (aDistP2C - theCircle->radius()) > -aTolerance;
1441 }
1442
1443 bool SketchPlugin_ThirdPointValidator::arePointsNotOnLine(
1444     const FeaturePtr& theMacroFeature,
1445     Events_InfoMessage& theError) const
1446 {
1447   static const std::string aErrorPointsOnLine(
1448       "Selected points are on the same line");
1449
1450   std::shared_ptr<GeomAPI_Pnt2d> aPoints[3];
1451   threePointsOfFeature(theMacroFeature, aPoints);
1452
1453   if (isPointsOnLine(aPoints[0], aPoints[1], aPoints[2])) {
1454     theError = aErrorPointsOnLine;
1455     return false;
1456   }
1457   return true;
1458 }
1459
1460 bool SketchPlugin_ThirdPointValidator::arePointsNotSeparated(
1461     const FeaturePtr& theMacroFeature,
1462     const std::list<std::string>& theArguments,
1463     Events_InfoMessage& theError) const
1464 {
1465   static const std::string aErrorPointsApart(
1466       "Selected entity is lying between first two points");
1467
1468   AttributeRefAttrPtr aThirdPointRef = theMacroFeature->refattr(theArguments.front());
1469   FeaturePtr aRefByThird;
1470   if (aThirdPointRef->isObject())
1471     aRefByThird = ModelAPI_Feature::feature(aThirdPointRef->object());
1472   if (!aRefByThird)
1473     return true;
1474
1475   std::shared_ptr<GeomAPI_Pnt2d> aPoints[3];
1476   threePointsOfFeature(theMacroFeature, aPoints);
1477
1478   std::shared_ptr<GeomAPI_Edge> aThirdShape =
1479       std::dynamic_pointer_cast<GeomAPI_Edge>(aRefByThird->lastResult()->shape());
1480   if (!aThirdShape)
1481     return true;
1482
1483   SketchPlugin_Sketch* aSketch =
1484       std::dynamic_pointer_cast<SketchPlugin_Feature>(theMacroFeature)->sketch();
1485   std::shared_ptr<GeomAPI_Pnt> aFirstPnt3D = aSketch->to3D(aPoints[0]->x(), aPoints[0]->y());
1486   std::shared_ptr<GeomAPI_Pnt> aSecondPnt3D = aSketch->to3D(aPoints[1]->x(), aPoints[1]->y());
1487
1488   bool isOk = true;
1489   if (aThirdShape->isLine())
1490     isOk = isOnSameSide(aThirdShape->line(), aFirstPnt3D, aSecondPnt3D);
1491   else if (aThirdShape->isCircle() || aThirdShape->isArc())
1492     isOk = isOnSameSide(aThirdShape->circle(), aFirstPnt3D, aSecondPnt3D);
1493
1494   if (!isOk)
1495     theError = aErrorPointsApart;
1496   return isOk;
1497 }
1498
1499 bool SketchPlugin_ArcEndPointValidator::isValid(
1500     const AttributePtr& theAttribute,
1501     const std::list<std::string>& theArguments,
1502     Events_InfoMessage& theError) const
1503 {
1504   FeaturePtr aFeature = ModelAPI_Feature::feature(theAttribute->owner());
1505   AttributeRefAttrPtr anEndPointRef = aFeature->refattr(theArguments.front());
1506
1507   if(!anEndPointRef.get()) {
1508     return true;
1509   }
1510
1511   ObjectPtr anObject = anEndPointRef->object();
1512   AttributePtr anAttr = anEndPointRef->attr();
1513   if(!anObject.get() && !anAttr.get()) {
1514     return true;
1515   }
1516
1517   if(anEndPointRef->attr().get()) {
1518     return false;
1519   }
1520
1521   ResultPtr aResult = std::dynamic_pointer_cast<ModelAPI_Result>(anObject);
1522   if(aResult.get()) {
1523     GeomShapePtr aShape = aResult->shape();
1524     if(aShape.get() && aShape->isVertex()) {
1525       return false;
1526     }
1527   }
1528
1529   aFeature = ModelAPI_Feature::feature(anObject);
1530   if(aFeature.get()) {
1531     if(aFeature->getKind() == SketchPlugin_Point::ID()) {
1532       return false;
1533     }
1534   }
1535
1536   return true;
1537 }
1538
1539 static GeomShapePtr toInfiniteEdge(const GeomShapePtr theShape)
1540 {
1541   if(!theShape.get()) {
1542     return theShape;
1543   }
1544
1545   if(!theShape->isEdge()) {
1546     return theShape;
1547   }
1548
1549   std::shared_ptr<GeomAPI_Edge> anEdge(new GeomAPI_Edge(theShape));
1550
1551   if(!anEdge.get()) {
1552     return theShape;
1553   }
1554
1555   if(anEdge->isLine()) {
1556     std::shared_ptr<GeomAPI_Lin> aLine = anEdge->line();
1557     GeomShapePtr aShape = GeomAlgoAPI_EdgeBuilder::line(aLine);
1558     return aShape;
1559   }
1560
1561   if(anEdge->isCircle() || anEdge->isArc()) {
1562     std::shared_ptr<GeomAPI_Circ> aCircle = anEdge->circle();
1563     GeomShapePtr aShape = GeomAlgoAPI_EdgeBuilder::lineCircle(aCircle);
1564     return aShape;
1565   }
1566
1567   return theShape;
1568 }
1569
1570 bool SketchPlugin_ArcEndPointIntersectionValidator::isValid(
1571     const AttributePtr& theAttribute,
1572     const std::list<std::string>& theArguments,
1573     Events_InfoMessage& theError) const
1574 {
1575   std::shared_ptr<SketchPlugin_MacroArc> anArcFeature =
1576       std::dynamic_pointer_cast<SketchPlugin_MacroArc>(theAttribute->owner());
1577   AttributeRefAttrPtr anEndPointRef = anArcFeature->refattr(theArguments.front());
1578
1579   if(!anEndPointRef.get()) {
1580     return true;
1581   }
1582
1583   GeomShapePtr anArcShape = toInfiniteEdge(anArcFeature->getArcShape(false));
1584
1585   if(!anArcShape.get() || anArcShape->isNull()) {
1586     return true;
1587   }
1588
1589   ObjectPtr anObject = anEndPointRef->object();
1590   AttributePtr anAttr = anEndPointRef->attr();
1591   if(!anObject.get() && !anAttr.get()) {
1592     return true;
1593   }
1594
1595   ResultPtr aResult = std::dynamic_pointer_cast<ModelAPI_Result>(anObject);
1596   if(aResult.get()) {
1597     GeomShapePtr aShape = aResult->shape();
1598     if (!aShape->isEdge())
1599       return true;
1600     aShape = toInfiniteEdge(aShape);
1601     if(aShape.get() && !aShape->isNull()) {
1602       if(anArcShape->isIntersect(aShape)) {
1603         return true;
1604       }
1605     }
1606   }
1607
1608   FeaturePtr aSelectedFeature = ModelAPI_Feature::feature(anObject);
1609   if(aSelectedFeature.get()) {
1610     std::list<ResultPtr> aResults = aSelectedFeature->results();
1611     for(std::list<ResultPtr>::const_iterator anIt = aResults.cbegin();
1612         anIt != aResults.cend();
1613         ++anIt)
1614     {
1615       GeomShapePtr aShape = (*anIt)->shape();
1616       if (!aShape->isEdge())
1617         return true;
1618       aShape = toInfiniteEdge(aShape);
1619       if(aShape.get() && !aShape->isNull()) {
1620         if(anArcShape->isIntersect(aShape)) {
1621           return true;
1622         }
1623       }
1624     }
1625   }
1626
1627   return false;
1628 }
1629
1630 bool SketchPlugin_HasNoConstraint::isValid(const AttributePtr& theAttribute,
1631                                            const std::list<std::string>& theArguments,
1632                                            Events_InfoMessage& theError) const
1633 {
1634   std::set<std::string> aFeatureKinds;
1635   for (std::list<std::string>::const_iterator anArgIt = theArguments.begin();
1636        anArgIt != theArguments.end(); anArgIt++) {
1637     aFeatureKinds.insert(*anArgIt);
1638   }
1639
1640   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
1641     theError = "The attribute with the %1 type is not processed";
1642     theError.arg(theAttribute->attributeType());
1643     return false;
1644   }
1645
1646   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
1647                                                                       (theAttribute);
1648   bool isObject = aRefAttr->isObject();
1649   if (!isObject) {
1650     theError = "It uses an empty object";
1651     return false;
1652   }
1653   ObjectPtr anObject = aRefAttr->object();
1654   FeaturePtr aFeature = ModelAPI_Feature::feature(anObject);
1655   if (!aFeature.get()) {
1656     theError = "The feature of the checked attribute is empty";
1657     return false;
1658   }
1659
1660   FeaturePtr aCurrentFeature = ModelAPI_Feature::feature(aRefAttr->owner());
1661
1662   std::set<AttributePtr> aRefsList = anObject->data()->refsToMe();
1663   std::set<AttributePtr>::const_iterator anIt = aRefsList.begin();
1664   for (; anIt != aRefsList.end(); anIt++) {
1665     FeaturePtr aRefFeature = ModelAPI_Feature::feature((*anIt)->owner());
1666     if (aRefFeature.get() && aCurrentFeature != aRefFeature &&
1667         aFeatureKinds.find(aRefFeature->getKind()) != aFeatureKinds.end())
1668       return false; // constraint is found, that means that the check is not valid
1669   }
1670   return true;
1671 }
1672
1673 bool SketchPlugin_ReplicationReferenceValidator::isValid(
1674     const AttributePtr& theAttribute,
1675     const std::list<std::string>& theArguments,
1676     Events_InfoMessage& theError) const
1677 {
1678   AttributeRefAttrPtr aRefAttr =
1679       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
1680   if (!aRefAttr)
1681   {
1682     theError = "Incorrect attribute";
1683     return false;
1684   }
1685
1686   ObjectPtr anOwner;
1687   if (aRefAttr->isObject())
1688     anOwner = aRefAttr->object();
1689   else
1690   {
1691     AttributePtr anAttr = aRefAttr->attr();
1692     anOwner = anAttr->owner();
1693   }
1694   FeaturePtr anAttrOwnerFeature = ModelAPI_Feature::feature(anOwner);
1695   if (!anAttrOwnerFeature)
1696     return true;
1697   AttributeBooleanPtr aCopyAttr = anAttrOwnerFeature->boolean(SketchPlugin_SketchEntity::COPY_ID());
1698   if (!aCopyAttr || !aCopyAttr->value())
1699     return true; // feature is not a copy, thus valid
1700
1701   // check the copy feature is already referred by the "Multi" feature
1702   FeaturePtr aMultiFeature = ModelAPI_Feature::feature(theAttribute->owner());
1703   AttributeRefListPtr aRefList = aMultiFeature->reflist(theArguments.front());
1704   for (int i = 0; i < aRefList->size(); ++i)
1705   {
1706     FeaturePtr aRefOwner = ModelAPI_Feature::feature(aRefList->object(i));
1707     if (aRefOwner == anAttrOwnerFeature)
1708     {
1709       theError = "Attribute refers to the object generated by this feature";
1710       return false;
1711     }
1712   }
1713
1714   return true;
1715 }
1716
1717 bool SketchPlugin_SketchFeatureValidator::isValid(const AttributePtr& theAttribute,
1718                                                   const std::list<std::string>& theArguments,
1719                                                   Events_InfoMessage& theError) const
1720 {
1721   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
1722     theError = "The attribute with the %1 type is not processed";
1723     theError.arg(theAttribute->attributeType());
1724     return false;
1725   }
1726
1727   // check the attribute refers to a sketch feature
1728   AttributeRefAttrPtr aRefAttr =
1729       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
1730   bool isSketchFeature = aRefAttr->isObject();
1731   if (isSketchFeature) {
1732     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->object());
1733     isSketchFeature = aFeature.get() != NULL;
1734     if (isSketchFeature) {
1735       std::shared_ptr<SketchPlugin_Feature> aSketchFeature =
1736           std::dynamic_pointer_cast<SketchPlugin_Feature>(aFeature);
1737       isSketchFeature = aSketchFeature.get() != NULL;
1738     }
1739   }
1740
1741   if (isSketchFeature)
1742     return true;
1743
1744   theError = "The object selected is not a sketch feature";
1745   return false;
1746 }
1747
1748 bool SketchPlugin_MultiRotationAngleValidator::isValid(const AttributePtr& theAttribute,
1749                                                        const std::list<std::string>& theArguments,
1750                                                        Events_InfoMessage& theError) const
1751 {
1752   if (theAttribute->attributeType() != ModelAPI_AttributeDouble::typeId()) {
1753     theError = "The attribute with the %1 type is not processed";
1754     theError.arg(theAttribute->attributeType());
1755     return false;
1756   }
1757
1758   AttributeDoublePtr anAngleAttr =
1759     std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(theAttribute);
1760
1761   FeaturePtr aMultiRotation = ModelAPI_Feature::feature(theAttribute->owner());
1762   AttributeStringPtr anAngleType =
1763       aMultiRotation->string(SketchPlugin_MultiRotation::ANGLE_TYPE());
1764   AttributeIntegerPtr aNbCopies =
1765       aMultiRotation->integer(SketchPlugin_MultiRotation::NUMBER_OF_OBJECTS_ID());
1766
1767   if (anAngleType->value() != "FullAngle")
1768   {
1769     double aFullAngleValue = anAngleAttr->value() * (aNbCopies->value() - 1);
1770     if (aFullAngleValue < -1.e-7 || aFullAngleValue > 359.9999999)
1771     {
1772       theError = "Rotation single angle should produce full angle less than 360 degree";
1773       return false;
1774     }
1775   }
1776   else
1777   {
1778     double aFullAngleValue = anAngleAttr->value();
1779     if (aFullAngleValue < -1.e-7 || aFullAngleValue > 360.0000001)
1780     {
1781       theError = "Rotation full angle should be in range [0, 360]";
1782       return false;
1783     }
1784   }
1785
1786   return true;
1787 }
1788
1789 bool SketchPlugin_BSplineValidator::isValid(const AttributePtr& theAttribute,
1790                                             const std::list<std::string>& theArguments,
1791                                             Events_InfoMessage& theError) const
1792 {
1793   AttributePoint2DArrayPtr aPolesArray =
1794       std::dynamic_pointer_cast<GeomDataAPI_Point2DArray>(theAttribute);
1795   if (!aPolesArray)
1796     return false;
1797
1798   if (aPolesArray->size() < 2) {
1799     theError = "Number of B-spline poles should be 2 or more";
1800     return false;
1801   }
1802
1803   return true;
1804 }