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