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 kind of attribute is wrong. It should be %2 or %3 or %4 or %5";
 312       theError.arg(aFeature->getKind()).arg(SketchPlugin_Line::ID())
 313           .arg(SketchPlugin_Circle::ID()).arg(SketchPlugin_Arc::ID())
 314           .arg(SketchPlugin_Ellipse::ID());
 315       // wrong type of attribute
 316       return false;
 317     }
 318   }
 319
 320   bool isOk = aType[0] == aType[1];
 321   if (!isOk) {
 322     // circle and arc may be equal
 323     isOk = (aType[0] == SketchPlugin_Arc::ID() && aType[1] == SketchPlugin_Circle::ID())
 324         || (aType[0] == SketchPlugin_Circle::ID() && aType[1] == SketchPlugin_Arc::ID());
 325   }
 326   if (!isOk) {
 327     // ellipse and elliptic arc may be equal
 328     // TODO
 329   }
 330   if (!isOk) {
 331     theError = "Feature with kinds %1 and %2 can not be equal.";
 332     theError.arg(aType[0]).arg(aType[1]);
 333     return false;
 334   }
 335   return true;
 336 }
 337
 338 bool SketchPlugin_MirrorAttrValidator::isValid(const AttributePtr& theAttribute,
 339                                                const std::list<std::string>& theArguments,
 340                                                Events_InfoMessage& theError) const
 341 {
 342   if (theAttribute->attributeType() != ModelAPI_AttributeRefList::typeId()) {
 343     theError = "The attribute with the %1 type is not processed";
 344     theError.arg(theAttribute->attributeType());
 345     return false;
 346   }
 347
 348   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 349   AttributeRefListPtr aSelAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(theAttribute);
 350
 351   AttributeRefListPtr aRefListOfMirrored = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 352       aFeature->attribute(SketchPlugin_Constraint::ENTITY_C()));
 353   std::list<ObjectPtr> aMirroredObjects = aRefListOfMirrored->list();
 354
 355   for(int anInd = 0; anInd < aSelAttr->size(); anInd++) {
 356     ObjectPtr aSelObject = aSelAttr->object(anInd);
 357     std::string aName = aSelObject.get() ? aSelObject->data()->name() : "";
 358     std::list<ObjectPtr>::iterator aMirIter = aMirroredObjects.begin();
 359     for (; aMirIter != aMirroredObjects.end(); aMirIter++)
 360       if (aSelObject == *aMirIter) {
 361         theError = "The object %1 is a result of mirror";
 362         theError.arg(aName);
 363         return false;
 364       }
 365   }
 366   return true;
 367 }
 368
 369 bool SketchPlugin_CoincidenceAttrValidator::isValid(const AttributePtr& theAttribute,
 370                                                     const std::list<std::string>& theArguments,
 371                                                     Events_InfoMessage& theError) const
 372 {
 373   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 374     theError = "The attribute with the %1 type is not processed";
 375     theError.arg(theAttribute->attributeType());
 376     return false;
 377   }
 378
 379   // there is a check whether the feature contains a point and a linear edge or two point values
 380   std::string aParamA = theArguments.front();
 381   SessionPtr aMgr = ModelAPI_Session::get();
 382   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 383
 384   FeaturePtr aConstraint = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 385   AttributeRefAttrPtr aRefAttrA = aConstraint->data()->refattr(aParamA);
 386   if (!aRefAttrA) {
 387     theError = "The %1 attribute should be %2";
 388     theError.arg(aParamA).arg(ModelAPI_AttributeRefAttr::typeId());
 389     return false;
 390   }
 391
 392   AttributeRefAttrPtr aRefAttrB =
 393     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 394
 395   // first attribute is a point, it may coincide with any object
 396   if (!aRefAttrA->isObject())
 397     return true;
 398   else {
 399     ObjectPtr anObject = aRefAttrA->object();
 400     if (!anObject.get()) {
 401       theError = "%1 attribute has an empty object";
 402       theError.arg(aParamA);
 403       return false;
 404     }
 405     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrA->object());
 406     if (!aFeature.get()) {
 407       theError = "%1 attribute has an empty feature";
 408       theError.arg(aParamA);
 409       return false;
 410     }
 411
 412     if (aFeature->getKind() == SketchPlugin_Point::ID())
 413       return true;
 414   }
 415
 416   // second attribute is a point, it may coincide with any object
 417   if (!aRefAttrB->isObject())
 418     return true;
 419   else {
 420     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrB->object());
 421     if (!aFeature) {
 422       theError = "%1 attribute has an empty object";
 423       theError.arg(theAttribute->id());
 424       return false;
 425     }
 426     if (aFeature->getKind() == SketchPlugin_Point::ID())
 427       return true;
 428   }
 429   theError = "There is no an attribute filled by a point";
 430   return false;
 431 }
 432
 433
 434 bool SketchPlugin_CopyValidator::isValid(const AttributePtr& theAttribute,
 435                                          const std::list<std::string>& theArguments,
 436                                          Events_InfoMessage& theError) const
 437 {
 438   if (theAttribute->attributeType() != ModelAPI_AttributeRefList::typeId()) {
 439     theError = "The attribute with the %1 type is not processed";
 440     theError.arg(theAttribute->attributeType());
 441     return false;
 442   }
 443
 444   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 445   AttributeRefListPtr aSelAttr =
 446     std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(theAttribute);
 447
 448   AttributeRefListPtr aRefListOfInitial = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 449       aFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
 450   AttributeRefListPtr aRefListOfCopied = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 451       aFeature->attribute(SketchPlugin_Constraint::ENTITY_B()));
 452   std::list<ObjectPtr> anInitialObjects = aRefListOfInitial->list();
 453   std::list<ObjectPtr> aCopiedObjects = aRefListOfCopied->list();
 454
 455   std::list<ObjectPtr>::iterator anObjIter;
 456   for(int anInd = 0; anInd < aSelAttr->size(); anInd++) {
 457     ObjectPtr aSelObject = aSelAttr->object(anInd);
 458     anObjIter = anInitialObjects.begin();
 459     for (; anObjIter != anInitialObjects.end(); anObjIter++)
 460       if (aSelObject == *anObjIter)
 461         break;
 462     if (anObjIter != anInitialObjects.end())
 463       continue;
 464     anObjIter = aCopiedObjects.begin();
 465     for (; anObjIter != aCopiedObjects.end(); anObjIter++)
 466       if (aSelObject == *anObjIter) {
 467         std::string aName = aSelObject.get() ? aSelObject->data()->name() : "";
 468         theError = "The object %1 is a result of copy";
 469         theError.arg(aName);
 470         return false;
 471       }
 472   }
 473   return true;
 474 }
 475
 476 bool SketchPlugin_SolverErrorValidator::isValid(
 477   const std::shared_ptr<ModelAPI_Feature>& theFeature,
 478   const std::list<std::string>& theArguments,
 479   Events_InfoMessage& theError) const
 480 {
 481   AttributeStringPtr aAttributeString = theFeature->string(SketchPlugin_Sketch::SOLVER_ERROR());
 482
 483   if (!aAttributeString->value().empty()) {
 484     theError = aAttributeString->value();
 485     return false;
 486   }
 487
 488   return true;
 489 }
 490
 491 bool SketchPlugin_SolverErrorValidator::isNotObligatory(std::string theFeature,
 492                                                         std::string theAttribute)
 493 {
 494   return true;
 495 }
 496
 497 static bool hasSameTangentFeature(const std::set<AttributePtr>& theRefsList,
 498                                   const FeaturePtr theFeature)
 499 {
 500   for(std::set<AttributePtr>::const_iterator
 501       anIt = theRefsList.cbegin(); anIt != theRefsList.cend(); ++anIt) {
 502     std::shared_ptr<ModelAPI_Attribute> aAttr = (*anIt);
 503     FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aAttr->owner());
 504     if (!aFeature)
 505       continue;
 506     if (aFeature->getKind() == SketchPlugin_ConstraintTangent::ID()) {
 507       AttributeRefAttrPtr anAttrRefA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 508         aFeature->attribute(SketchPlugin_ConstraintTangent::ENTITY_A()));
 509       AttributeRefAttrPtr anAttrRefB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 510         aFeature->attribute(SketchPlugin_ConstraintTangent::ENTITY_B()));
 511       if(anAttrRefA.get()) {
 512         ResultPtr aResA = std::dynamic_pointer_cast<ModelAPI_Result>(anAttrRefA->object());
 513         if(aResA.get()) {
 514           DocumentPtr aDoc = aResA->document();
 515           if(aDoc.get()) {
 516             FeaturePtr aFeatureA = aDoc->feature(aResA);
 517             if(aFeatureA.get() && aFeatureA == theFeature) {
 518               return true;
 519             }
 520           }
 521         }
 522       }
 523       if(anAttrRefB.get()) {
 524         ResultPtr aResB = std::dynamic_pointer_cast<ModelAPI_Result>(anAttrRefB->object());
 525         if(aResB.get()) {
 526           DocumentPtr aDoc = aResB->document();
 527           if(aDoc.get()) {
 528             FeaturePtr aFeatureB = aDoc->feature(aResB);
 529             if(aFeatureB.get() && aFeatureB == theFeature) {
 530               return true;
 531             }
 532           }
 533         }
 534       }
 535     }
 536   }
 537   return false;
 538 }
 539
 540 static bool isPointPointCoincidence(const FeaturePtr& theCoincidence)
 541 {
 542   AttributeRefAttrPtr aRefAttr[2] = {
 543       theCoincidence->refattr(SketchPlugin_Constraint::ENTITY_A()),
 544       theCoincidence->refattr(SketchPlugin_Constraint::ENTITY_B())
 545   };
 546
 547   bool arePoints = true;
 548   for (int i = 0; i < 2 && arePoints; ++i) {
 549     if (aRefAttr[i]->isObject()) {
 550       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr[i]->object());
 551       arePoints = aFeature.get() && aFeature->getKind() == SketchPlugin_Point::ID();
 552     } else
 553       arePoints = aRefAttr[i]->attr().get() != NULL;
 554   }
 555   return arePoints;
 556 }
 557
 558 bool SketchPlugin_FilletVertexValidator::isValid(const AttributePtr& theAttribute,
 559                                                  const std::list<std::string>& theArguments,
 560                                                  Events_InfoMessage& theError) const
 561 {
 562   AttributeRefAttrPtr aPointRefAttr =
 563     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 564   if(!aPointRefAttr.get()) {
 565     theError = "Error: Point not selected.";
 566     return false;
 567   }
 568
 569   AttributePtr aPointAttribute = aPointRefAttr->attr();
 570   if (!aPointAttribute.get()) {
 571     theError = "Error: Bad point selected.";
 572     return false;
 573   }
 574   std::shared_ptr<GeomAPI_Pnt2d> aSelectedPnt =
 575     std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aPointAttribute)->pnt();
 576
 577   // Obtain constraint coincidence for the fillet point.
 578   const std::set<AttributePtr>& aRefsList = aPointAttribute->owner()->data()->refsToMe();
 579   FeaturePtr aConstraintCoincidence;
 580   for(std::set<AttributePtr>::const_iterator anIt = aRefsList.cbegin();
 581       anIt != aRefsList.cend(); ++anIt) {
 582     std::shared_ptr<ModelAPI_Attribute> aAttr = (*anIt);
 583     FeaturePtr aConstrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aAttr->owner());
 584     if (aConstrFeature->getKind() == SketchPlugin_ConstraintCoincidence::ID()) {
 585       if (!isPointPointCoincidence(aConstrFeature))
 586         continue;
 587
 588       AttributeRefAttrPtr anAttrRefA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 589         aConstrFeature->attribute(SketchPlugin_ConstraintCoincidence::ENTITY_A()));
 590       AttributeRefAttrPtr anAttrRefB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 591         aConstrFeature->attribute(SketchPlugin_ConstraintCoincidence::ENTITY_B()));
 592
 593       AttributePtr anAttrA = anAttrRefA->attr();
 594       if(aPointAttribute == anAttrA) {
 595         aConstraintCoincidence = aConstrFeature;
 596         break;
 597       }
 598
 599       AttributePtr anAttrB = anAttrRefB->attr();
 600       if(aPointAttribute == anAttrB) {
 601         aConstraintCoincidence = aConstrFeature;
 602         break;
 603       }
 604     }
 605   }
 606
 607   if(!aConstraintCoincidence.get()) {
 608     theError = "Error: one of the selected point does not have coicidence.";
 609     return false;
 610   }
 611
 612   // Get coincides from constraint.
 613   std::set<FeaturePtr> aCoinsides;
 614   SketchPlugin_Tools::findCoincidences(aConstraintCoincidence,
 615                                         SketchPlugin_ConstraintCoincidence::ENTITY_A(),
 616                                         aCoinsides,
 617                                         true);
 618   SketchPlugin_Tools::findCoincidences(aConstraintCoincidence,
 619                                         SketchPlugin_ConstraintCoincidence::ENTITY_B(),
 620                                         aCoinsides,
 621                                         true);
 622
 623   // Remove points and external lines from set of coincides.
 624   std::set<FeaturePtr> aNewSetOfCoincides;
 625   for(std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 626       anIt != aCoinsides.end(); ++anIt) {
 627     std::shared_ptr<SketchPlugin_SketchEntity> aSketchEntity =
 628       std::dynamic_pointer_cast<SketchPlugin_SketchEntity>(*anIt);
 629     if(aSketchEntity.get() && (aSketchEntity->isCopy() || aSketchEntity->isExternal())) {
 630       continue;
 631     }
 632     if((*anIt)->getKind() != SketchPlugin_Line::ID() &&
 633         (*anIt)->getKind() != SketchPlugin_Arc::ID()) {
 634           continue;
 635     }
 636     if((*anIt)->getKind() == SketchPlugin_Arc::ID()) {
 637       AttributePtr anArcCenter = (*anIt)->attribute(SketchPlugin_Arc::CENTER_ID());
 638       std::shared_ptr<GeomAPI_Pnt2d> anArcCenterPnt =
 639         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anArcCenter)->pnt();
 640       double aDistSelectedArcCenter = aSelectedPnt->distance(anArcCenterPnt);
 641       if(aDistSelectedArcCenter < tolerance) {
 642         continue;
 643       }
 644     }
 645     aNewSetOfCoincides.insert(*anIt);
 646   }
 647   aCoinsides = aNewSetOfCoincides;
 648
 649   // If we still have more than two coincides remove auxilary entities from set of coincides.
 650   if(aCoinsides.size() > 2) {
 651     aNewSetOfCoincides.clear();
 652     for(std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 653         anIt != aCoinsides.end(); ++anIt) {
 654       if(!(*anIt)->boolean(SketchPlugin_SketchEntity::AUXILIARY_ID())->value()) {
 655         aNewSetOfCoincides.insert(*anIt);
 656       }
 657     }
 658     aCoinsides = aNewSetOfCoincides;
 659   }
 660
 661   if(aCoinsides.size() != 2) {
 662     theError = "Error: One of the selected points does not have two suitable edges for fillet.";
 663     return false;
 664   }
 665
 666   // Check that selected edges don't have tangent constraint.
 667   std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 668   FeaturePtr aFirstFeature = *anIt++;
 669   FeaturePtr aSecondFeature = *anIt;
 670   const std::set<AttributePtr>& aFirstFeatureRefsList = aFirstFeature->data()->refsToMe();
 671   if(hasSameTangentFeature(aFirstFeatureRefsList, aSecondFeature)) {
 672     theError = "Error: Edges in selected point has tangent constraint.";
 673     return false;
 674   }
 675
 676   std::list<ResultPtr> aFirstResults = aFirstFeature->results();
 677   for(std::list<ResultPtr>::iterator aResIt = aFirstResults.begin();
 678       aResIt != aFirstResults.end(); ++aResIt) {
 679     ResultPtr aRes = *aResIt;
 680     const std::set<AttributePtr>& aResRefsList = aRes->data()->refsToMe();
 681     if(hasSameTangentFeature(aResRefsList, aSecondFeature)) {
 682       theError = "Error: Edges in selected point has tangent constraint.";
 683       return false;
 684     }
 685   }
 686
 687   // Check the features are not tangent
 688   std::shared_ptr<GeomAPI_Shape> aFirstShape = aFirstFeature->lastResult()->shape();
 689   std::shared_ptr<GeomAPI_Shape> aSecondShape = aSecondFeature->lastResult()->shape();
 690   if (!aFirstShape || !aFirstShape->isEdge() ||
 691       !aSecondShape || !aSecondShape->isEdge()) {
 692     theError = "Error: At least on of the features is not an edge";
 693     return false;
 694   }
 695
 696   std::shared_ptr<GeomAPI_Edge> anEdge1 = std::dynamic_pointer_cast<GeomAPI_Edge>(aFirstShape);
 697   std::shared_ptr<GeomAPI_Edge> anEdge2 = std::dynamic_pointer_cast<GeomAPI_Edge>(aSecondShape);
 698
 699   static const double TOL = 1.e-7;
 700   if (anEdge1->isLine() && anEdge2->isLine()) {
 701     // Check that lines not collinear
 702     std::shared_ptr<GeomAPI_Dir> aDir1 = anEdge1->line()->direction();
 703     std::shared_ptr<GeomAPI_Dir> aDir2 = anEdge2->line()->direction();
 704     double aCross = aDir1->cross(aDir2)->squareModulus();
 705     if (aCross < TOL * TOL)
 706       return false;
 707   } else if (anEdge1->isArc() && anEdge2->isArc()) {
 708     // check the circles are not tangent
 709     std::shared_ptr<GeomAPI_Circ> aCirc1 = anEdge1->circle();
 710     std::shared_ptr<GeomAPI_Circ> aCirc2 = anEdge2->circle();
 711     double aDistCC = aCirc1->center()->distance(aCirc2->center());
 712     double aRadSum = aCirc1->radius() + aCirc2->radius();
 713     double aRadDiff = fabs(aCirc1->radius() - aCirc2->radius());
 714     if (fabs(aDistCC - aRadSum) < TOL || fabs(aDistCC - aRadDiff) < TOL)
 715       return false;
 716   } else {
 717     // check whether line and arc are tangent
 718     std::shared_ptr<GeomAPI_Circ> aCirc;
 719     std::shared_ptr<GeomAPI_Lin> aLine;
 720     if (anEdge1->isLine()) {
 721       aLine = anEdge1->line();
 722       aCirc = anEdge2->circle();
 723     } else {
 724       aCirc = anEdge1->circle();
 725       aLine = anEdge2->line();
 726     }
 727
 728     double aDistCL = aLine->distance(aCirc->center());
 729     if (fabs(aDistCL - aCirc->radius()) < TOL)
 730       return false;
 731   }
 732
 733   return true;
 734 }
 735
 736 bool SketchPlugin_MiddlePointAttrValidator::isValid(const AttributePtr& theAttribute,
 737                                                     const std::list<std::string>& theArguments,
 738                                                     Events_InfoMessage& theError) const
 739 {
 740   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 741     theError = "The attribute with the %1 type is not processed";
 742     theError.arg(theAttribute->attributeType());
 743     return false;
 744   }
 745
 746   // there is a check whether the feature contains a point and a linear edge or two point values
 747   std::string aParamA = theArguments.front();
 748   SessionPtr aMgr = ModelAPI_Session::get();
 749   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 750
 751   FeaturePtr anAttributeFeature =
 752     std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 753   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 754   AttributeRefAttrPtr anOtherAttr = anAttributeFeature->data()->refattr(aParamA);
 755
 756   AttributeRefAttrPtr aRefAttrs[2] = {aRefAttr, anOtherAttr};
 757   int aNbPoints = 0;
 758   int aNbLines = 0;
 759   for (int i = 0; i < 2; ++i) {
 760     if (!aRefAttrs[i]->isObject())
 761       ++aNbPoints;
 762     else {
 763       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrs[i]->object());
 764       if (!aFeature) {
 765         if (aNbPoints + aNbLines != 0)
 766           return true;
 767         else continue;
 768       }
 769
 770       if (aFeature->getKind() == SketchPlugin_Point::ID())
 771         ++aNbPoints;
 772       else if (aFeature->getKind() == SketchPlugin_Line::ID() ||
 773                aFeature->getKind() == SketchPlugin_Arc::ID())
 774         ++aNbLines;
 775     }
 776   }
 777
 778   if (aNbPoints != 1 || aNbLines != 1) {
 779     theError = "Middle point constraint allows points and lines only";
 780     return false;
 781   }
 782   return true;
 783 }
 784
 785 bool SketchPlugin_ArcTangentPointValidator::isValid(const AttributePtr& theAttribute,
 786                                                     const std::list<std::string>& /*theArguments*/,
 787                                                     Events_InfoMessage& theError) const
 788 {
 789   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 790     theError = "The attribute with the %1 type is not processed";
 791     theError.arg(theAttribute->attributeType());
 792     return false;
 793   }
 794   FeaturePtr anOwner = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 795   AttributeStringPtr anArcTypeAttr = anOwner->string(SketchPlugin_MacroArc::ARC_TYPE());
 796   if (anArcTypeAttr && anArcTypeAttr->value() != SketchPlugin_MacroArc::ARC_TYPE_BY_TANGENT_EDGE())
 797     return true; // not applicable for non-tangent arcs
 798
 799   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 800   AttributePtr anAttr = aRefAttr->attr();
 801   if (!anAttr) {
 802     theError = "The attribute %1 should be a point";
 803     theError.arg(theAttribute->id());
 804     return false;
 805   }
 806
 807   FeaturePtr anAttrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(anAttr->owner());
 808   const std::string& aFeatureType = anAttrFeature->getKind();
 809   if (aFeatureType == SketchPlugin_Arc::ID()) {
 810     // selected point should not be a center of arc
 811     const std::string& aPntId = anAttr->id();
 812     if (aPntId != SketchPlugin_Arc::START_ID() && aPntId != SketchPlugin_Arc::END_ID()) {
 813       theError = "The attribute %1 is not supported";
 814       theError.arg(aPntId);
 815       return false;
 816     }
 817   }
 818   else if (aFeatureType == SketchPlugin_Line::ID()) {
 819     // selected point should be bound point of line
 820     const std::string& aPntId = anAttr->id();
 821     if (aPntId != SketchPlugin_Line::START_ID() && aPntId != SketchPlugin_Line::END_ID()) {
 822       theError = "The attribute %1 is not supported";
 823       theError.arg(aPntId);
 824       return false;
 825     }
 826   }
 827   else {
 828     theError = "Unable to build tangent arc on %1";
 829     theError.arg(anAttrFeature->getKind());
 830     return false;
 831   }
 832
 833   return true;
 834 }
 835
 836 bool SketchPlugin_ArcTransversalPointValidator::isValid(
 837     const AttributePtr& theAttribute,
 838     const std::list<std::string>& /*theArguments*/,
 839     Events_InfoMessage& theError) const
 840 {
 841   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 842     theError = "The attribute with the %1 type is not processed";
 843     theError.arg(theAttribute->attributeType());
 844     return false;
 845   }
 846   FeaturePtr anOwner = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 847   AttributeStringPtr anArcTypeAttr = anOwner->string(SketchPlugin_MacroArc::ARC_TYPE());
 848   if (anArcTypeAttr &&
 849       anArcTypeAttr->value() != SketchPlugin_MacroArc::ARC_TYPE_BY_TRANSVERSAL_LINE())
 850     return true; // not applicable for non-transversal arcs
 851
 852   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 853   AttributePtr anAttr = aRefAttr->attr();
 854   if (!anAttr) {
 855     theError = "The attribute %1 should be a point";
 856     theError.arg(theAttribute->id());
 857     return false;
 858   }
 859
 860   FeaturePtr anAttrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(anAttr->owner());
 861   const std::string& aFeatureType = anAttrFeature->getKind();
 862   if (aFeatureType == SketchPlugin_Line::ID()) {
 863     // selected point should be bound point of line
 864     const std::string& aPntId = anAttr->id();
 865     if (aPntId != SketchPlugin_Line::START_ID() && aPntId != SketchPlugin_Line::END_ID()) {
 866       theError = "The attribute %1 is not supported";
 867       theError.arg(aPntId);
 868       return false;
 869     }
 870   }
 871   else {
 872     theError = "Unable to build transversal arc on %1";
 873     theError.arg(anAttrFeature->getKind());
 874     return false;
 875   }
 876
 877   return true;
 878 }
 879
 880 bool SketchPlugin_IntersectionValidator::isValid(const AttributePtr& theAttribute,
 881                                                  const std::list<std::string>& theArguments,
 882                                                  Events_InfoMessage& theError) const
 883 {
 884   if (theAttribute->attributeType() != ModelAPI_AttributeSelection::typeId()) {
 885     theError = "The attribute with the %1 type is not processed";
 886     theError.arg(theAttribute->attributeType());
 887     return false;
 888   }
 889   AttributeSelectionPtr anExternalAttr =
 890       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(theAttribute);
 891   std::shared_ptr<GeomAPI_Edge> anEdge;
 892   if (anExternalAttr && anExternalAttr->value() && anExternalAttr->value()->isEdge()) {
 893     anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(anExternalAttr->value()));
 894   } else if(anExternalAttr->context() && anExternalAttr->context()->shape() &&
 895             anExternalAttr->context()->shape()->isEdge()) {
 896     anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(anExternalAttr->context()->shape()));
 897   }
 898
 899   if (!anEdge) {
 900     theError = "The attribute %1 should be an edge";
 901     theError.arg(theAttribute->id());
 902     return false;
 903   }
 904
 905   // find a sketch
 906   std::shared_ptr<SketchPlugin_Sketch> aSketch;
 907   std::set<AttributePtr> aRefs = anExternalAttr->owner()->data()->refsToMe();
 908   std::set<AttributePtr>::const_iterator anIt = aRefs.begin();
 909   for (; anIt != aRefs.end(); ++anIt) {
 910     CompositeFeaturePtr aComp =
 911         std::dynamic_pointer_cast<ModelAPI_CompositeFeature>((*anIt)->owner());
 912     if (aComp && aComp->getKind() == SketchPlugin_Sketch::ID()) {
 913       aSketch = std::dynamic_pointer_cast<SketchPlugin_Sketch>(aComp);
 914       break;
 915     }
 916   }
 917   if (!aSketch) {
 918     theError = "There is no sketch referring to the current feature";
 919     return false;
 920   }
 921
 922   // check the edge is intersected with sketch plane
 923   std::shared_ptr<GeomAPI_Pln> aPlane = aSketch->plane();
 924
 925   std::list<GeomPointPtr> anIntersectionsPoints;
 926   anEdge->intersectWithPlane(aPlane, anIntersectionsPoints);
 927   if (anIntersectionsPoints.empty()) {
 928     theError = "The edge is not intersected with sketch plane";
 929     return false;
 930   }
 931   return true;
 932 }
 933
 934 bool SketchPlugin_SplitValidator::isValid(const AttributePtr& theAttribute,
 935                                           const std::list<std::string>& theArguments,
 936                                           Events_InfoMessage& theError) const
 937 {
 938   bool aValid = false;
 939
 940   if (theAttribute->attributeType() != ModelAPI_AttributeReference::typeId()) {
 941     theError = "The attribute with the %1 type is not processed";
 942     theError.arg(theAttribute->attributeType());
 943     return aValid;
 944   }
 945   AttributeReferencePtr aFeatureAttr =
 946             std::dynamic_pointer_cast<ModelAPI_AttributeReference>(theAttribute);
 947
 948   ObjectPtr anAttrObject = aFeatureAttr->value();
 949   FeaturePtr anAttrFeature = ModelAPI_Feature::feature(anAttrObject);
 950   if (!anAttrFeature)
 951     return aValid;
 952
 953   std::string aKind = anAttrFeature->getKind();
 954   if (aKind == SketchPlugin_Line::ID() ||
 955       aKind == SketchPlugin_Arc::ID() ||
 956       aKind == SketchPlugin_Circle::ID()) {
 957
 958     std::set<ResultPtr> anEdgeShapes;
 959     ModelGeomAlgo_Shape::shapesOfType(anAttrFeature, GeomAPI_Shape::EDGE, anEdgeShapes);
 960     if (anEdgeShapes.empty() || anEdgeShapes.size() > 1 /*there case has not existed yet*/)
 961       return aValid;
 962
 963     // coincidences to the feature
 964     std::set<std::shared_ptr<GeomDataAPI_Point2D> > aRefAttributes;
 965     ModelGeomAlgo_Point2D::getPointsOfReference(anAttrFeature,
 966                         SketchPlugin_ConstraintCoincidence::ID(),
 967                         aRefAttributes, SketchPlugin_Point::ID(), SketchPlugin_Point::COORD_ID());
 968
 969     GeomShapePtr anAttrShape = (*anEdgeShapes.begin())->shape();
 970     std::shared_ptr<SketchPlugin_Feature> aSFeature =
 971                                  std::dynamic_pointer_cast<SketchPlugin_Feature>(anAttrFeature);
 972     SketchPlugin_Sketch* aSketch = aSFeature->sketch();
 973
 974     std::shared_ptr<ModelAPI_Data> aData = aSketch->data();
 975     std::shared_ptr<GeomDataAPI_Point> aC = std::dynamic_pointer_cast<GeomDataAPI_Point>(
 976         aData->attribute(SketchPlugin_Sketch::ORIGIN_ID()));
 977     std::shared_ptr<GeomDataAPI_Dir> aX = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
 978         aData->attribute(SketchPlugin_Sketch::DIRX_ID()));
 979     std::shared_ptr<GeomDataAPI_Dir> aNorm = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
 980         aData->attribute(SketchPlugin_Sketch::NORM_ID()));
 981     std::shared_ptr<GeomAPI_Dir> aDirY(new GeomAPI_Dir(aNorm->dir()->cross(aX->dir())));
 982
 983     typedef std::map<std::shared_ptr<GeomAPI_Pnt>,
 984                      std::pair<std::list<std::shared_ptr<GeomDataAPI_Point2D> >,
 985                                std::list<std::shared_ptr<ModelAPI_Object> > > > PointToRefsMap;
 986     PointToRefsMap aPointsInfo;
 987
 988     ModelGeomAlgo_Point2D::getPointsInsideShape(anAttrShape, aRefAttributes, aC->pnt(),
 989                                                 aX->dir(), aDirY, aPointsInfo);
 990     int aCoincidentToFeature = (int)aPointsInfo.size();
 991     if (aKind == SketchPlugin_Circle::ID())
 992       aValid = aCoincidentToFeature >= 2;
 993     else
 994       aValid = aCoincidentToFeature >= 1;
 995   }
 996
 997   return aValid;
 998 }
 999
1000 bool SketchPlugin_TrimValidator::isValid(const AttributePtr& theAttribute,
1001                                          const std::list<std::string>& theArguments,
1002                                          Events_InfoMessage& theError) const
1003 {
1004   bool aValid = false;
1005
1006   if (theAttribute->attributeType() != ModelAPI_AttributeReference::typeId()) {
1007     theError = "The attribute with the %1 type is not processed";
1008     theError.arg(theAttribute->attributeType());
1009     return aValid;
1010   }
1011   AttributeReferencePtr aBaseObjectAttr =
1012             std::dynamic_pointer_cast<ModelAPI_AttributeReference>(theAttribute);
1013
1014   std::shared_ptr<SketchPlugin_Feature> aTrimFeature =
1015                  std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
1016
1017   ObjectPtr aBaseObject = aBaseObjectAttr->value();
1018   if (!aBaseObject) {
1019     AttributePtr aPreviewAttr = aTrimFeature->attribute(SketchPlugin_Trim::PREVIEW_OBJECT());
1020     aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(aPreviewAttr);
1021     aBaseObject = aBaseObjectAttr->value();
1022   }
1023
1024   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObject);
1025   if (!aBaseFeature)
1026     return aValid;
1027
1028   std::shared_ptr<SketchPlugin_Feature> aSketchFeature =
1029                                  std::dynamic_pointer_cast<SketchPlugin_Feature>(aBaseFeature);
1030   if (!aSketchFeature.get() || aSketchFeature->isCopy())
1031     return aValid;
1032
1033   std::string aKind = aBaseFeature->getKind();
1034   if (aKind != SketchPlugin_Line::ID() &&
1035       aKind != SketchPlugin_Arc::ID() &&
1036       aKind != SketchPlugin_Circle::ID())
1037     return aValid;
1038
1039   // point on feature
1040   AttributePoint2DPtr aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1041                        aTrimFeature->data()->attribute(SketchPlugin_Trim::PREVIEW_POINT()));
1042
1043   SketchPlugin_Sketch* aSketch = aTrimFeature->sketch();
1044
1045   std::shared_ptr<GeomAPI_Pnt2d> anAttributePnt2d = aPoint->pnt();
1046   std::shared_ptr<GeomAPI_Pnt> anAttributePnt = aSketch->to3D(anAttributePnt2d->x(),
1047                                                               anAttributePnt2d->y());
1048
1049   std::map<ObjectPtr, std::set<GeomShapePtr> > aCashedShapes;
1050   std::map<ObjectPtr, std::map<std::shared_ptr<GeomAPI_Pnt>,
1051            std::pair<std::list<std::shared_ptr<GeomDataAPI_Point2D> >,
1052                      std::list<std::shared_ptr<ModelAPI_Object> > > > > anObjectToPoints;
1053   SketchPlugin_Trim::fillObjectShapes(aBaseObject, aSketch->data()->owner(),
1054                                       aCashedShapes, anObjectToPoints);
1055   const std::set<GeomShapePtr>& aShapes = aCashedShapes[aBaseObject];
1056
1057   return aShapes.size() > 1;
1058 }
1059
1060 bool SketchPlugin_ProjectionValidator::isValid(const AttributePtr& theAttribute,
1061                                                const std::list<std::string>& theArguments,
1062                                                Events_InfoMessage& theError) const
1063 {
1064   if (theAttribute->attributeType() != ModelAPI_AttributeSelection::typeId()) {
1065     theError = "The attribute with the %1 type is not processed";
1066     theError.arg(theAttribute->attributeType());
1067     return false;
1068   }
1069
1070   AttributeSelectionPtr aFeatureAttr =
1071       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(theAttribute);
1072   std::shared_ptr<GeomAPI_Edge> anEdge;
1073   std::shared_ptr<SketchPlugin_Feature> aSketchFeature;
1074   if (aFeatureAttr.get()) {
1075     GeomShapePtr aVal = aFeatureAttr->value();
1076     ResultPtr aRes = aFeatureAttr->context();
1077     if (aVal && aVal->isVertex())
1078       return true; // vertex is always could be projected
1079     if (aVal && aVal->isEdge()) {
1080       anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aFeatureAttr->value()));
1081     } else if(aRes && aRes->shape()) {
1082       if (aRes->shape()->isVertex())
1083         return true; // vertex is always could be projected
1084       else if (aRes->shape()->isEdge())
1085         anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aFeatureAttr->context()->shape()));
1086     }
1087
1088     // try to convert result to sketch feature
1089     if (aRes) {
1090       aSketchFeature =
1091         std::dynamic_pointer_cast<SketchPlugin_Feature>(ModelAPI_Feature::feature(aRes));
1092     }
1093   }
1094   if (!anEdge) {
1095     theError = "The attribute %1 should be an edge or vertex";
1096     theError.arg(theAttribute->id());
1097     return false;
1098   }
1099
1100   // find a sketch
1101   std::shared_ptr<SketchPlugin_Sketch> aSketch;
1102   std::set<AttributePtr> aRefs = theAttribute->owner()->data()->refsToMe();
1103   std::set<AttributePtr>::const_iterator anIt = aRefs.begin();
1104   for (; anIt != aRefs.end(); ++anIt) {
1105     CompositeFeaturePtr aComp =
1106         std::dynamic_pointer_cast<ModelAPI_CompositeFeature>((*anIt)->owner());
1107     if (aComp && aComp->getKind() == SketchPlugin_Sketch::ID()) {
1108       aSketch = std::dynamic_pointer_cast<SketchPlugin_Sketch>(aComp);
1109       break;
1110     }
1111   }
1112   if (!aSketch) {
1113     theError = "There is no sketch referring to the current feature";
1114     return false;
1115   }
1116   if (aSketchFeature && aSketch.get() == aSketchFeature->sketch()) {
1117     theError = "Unable to project feature from the same sketch";
1118     return false;
1119   }
1120
1121   std::shared_ptr<GeomAPI_Pln> aPlane = aSketch->plane();
1122   std::shared_ptr<GeomAPI_Dir> aNormal = aPlane->direction();
1123   std::shared_ptr<GeomAPI_Pnt> anOrigin = aPlane->location();
1124
1125   if (anEdge->isLine()) {
1126     std::shared_ptr<GeomAPI_Lin> aLine = anEdge->line();
1127     std::shared_ptr<GeomAPI_Dir> aLineDir = aLine->direction();
1128     double aDot = fabs(aNormal->dot(aLineDir));
1129     bool aValid = fabs(aDot - 1.0) >= tolerance * tolerance;
1130     if (!aValid)
1131       theError = "Error: Line is orthogonal to the sketch plane.";
1132     return aValid;
1133   }
1134   else if (anEdge->isCircle() || anEdge->isArc()) {
1135     std::shared_ptr<GeomAPI_Circ> aCircle = anEdge->circle();
1136     std::shared_ptr<GeomAPI_Dir> aCircNormal = aCircle->normal();
1137     double aDot = fabs(aNormal->dot(aCircNormal));
1138     bool aValid = aDot >= tolerance * tolerance;
1139     if (!aValid)
1140       theError.arg(anEdge->isCircle() ? "Error: Circle is orthogonal to the sketch plane."
1141                                       : "Error: Arc is orthogonal to the sketch plane.");
1142     return aValid;
1143   }
1144   else if (anEdge->isEllipse()) {
1145     std::shared_ptr<GeomAPI_Ellipse> anEllipse = anEdge->ellipse();
1146     std::shared_ptr<GeomAPI_Dir> anEllipseNormal = anEllipse->normal();
1147     double aDot = fabs(aNormal->dot(anEllipseNormal));
1148     bool aValid = aDot >= tolerance * tolerance;
1149     if (!aValid)
1150       theError.arg(anEdge->isEllipse() ? "Error: Ellipse is orthogonal to the sketch plane."
1151                                        : "Error: Elliptic Arc is orthogonal to the sketch plane.");
1152     return aValid;
1153   }
1154
1155   theError = "Error: Selected object is not line, circle or arc.";
1156   return false;
1157 }
1158
1159
1160 static std::set<FeaturePtr> common(const std::set<FeaturePtr>& theSet1,
1161                                    const std::set<FeaturePtr>& theSet2)
1162 {
1163   std::set<FeaturePtr> aCommon;
1164   if (theSet1.empty() || theSet2.empty())
1165     return aCommon;
1166
1167   std::set<FeaturePtr>::const_iterator anIt2 = theSet2.begin();
1168   for (; anIt2 != theSet2.end(); ++anIt2)
1169     if (theSet1.find(*anIt2) != theSet1.end())
1170       aCommon.insert(*anIt2);
1171   return aCommon;
1172 }
1173
1174 bool SketchPlugin_DifferentReferenceValidator::isValid(
1175     const AttributePtr& theAttribute,
1176     const std::list<std::string>& theArguments,
1177     Events_InfoMessage& theError) const
1178 {
1179   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1180
1181   int aNbFeaturesReferred = 0;
1182   int aNbAttributesReferred = 0;
1183   std::set<FeaturePtr> aCommonReferredFeatures;
1184
1185   // find all features referred by attributes listed in theArguments
1186   std::list<std::string>::const_iterator anArgIt = theArguments.begin();
1187   for (; anArgIt != theArguments.end(); ++anArgIt) {
1188     AttributeRefAttrPtr aRefAttr = anOwner->refattr(*anArgIt);
1189     if (!aRefAttr)
1190       continue;
1191
1192     std::set<FeaturePtr> aCoincidentFeatures;
1193     if (aRefAttr->isObject()) {
1194       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->object());
1195       if (aFeature) {
1196         aCoincidentFeatures.insert(aFeature);
1197         aNbFeaturesReferred += 1;
1198       }
1199     } else {
1200       AttributePoint2DPtr aPoint =
1201           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
1202       if (aPoint) {
1203         aCoincidentFeatures = SketchPlugin_Tools::findFeaturesCoincidentToPoint(aPoint);
1204         aNbAttributesReferred += 1;
1205       }
1206     }
1207
1208     if (aCommonReferredFeatures.empty())
1209       aCommonReferredFeatures = aCoincidentFeatures;
1210     else
1211       aCommonReferredFeatures = common(aCommonReferredFeatures, aCoincidentFeatures);
1212
1213     if (aCommonReferredFeatures.empty())
1214       return true;
1215   }
1216
1217   bool isOk = aNbFeaturesReferred < 1;
1218   if (aNbFeaturesReferred == 1) {
1219     if (aCommonReferredFeatures.size() == 1) {
1220       FeaturePtr aFeature = *aCommonReferredFeatures.begin();
1221       isOk = aNbAttributesReferred <= 1 ||
1222              aFeature->getKind() == SketchPlugin_Circle::ID() ||
1223              aFeature->getKind() == SketchPlugin_Arc::ID();
1224     } else
1225       isOk = false;
1226   }
1227
1228   if (!isOk)
1229     theError = "Attributes are referred to the same feature";
1230   return isOk;
1231 }
1232
1233 bool SketchPlugin_DifferentPointReferenceValidator::isValid(
1234     const AttributePtr& theAttribute,
1235     const std::list<std::string>& theArguments,
1236     Events_InfoMessage& theError) const
1237 {
1238   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1239   std::set<AttributePoint2DPtr> aReferredCoincidentPoints;
1240
1241   // find all points referred by attributes listed in theArguments
1242   bool hasRefsToPoints = false;
1243   std::list<std::string>::const_iterator anArgIt = theArguments.begin();
1244   for (; anArgIt != theArguments.end(); ++anArgIt) {
1245     AttributeRefAttrPtr aRefAttr = anOwner->refattr(*anArgIt);
1246     if (!aRefAttr)
1247       continue;
1248
1249     if (!aRefAttr->isObject()) {
1250       AttributePoint2DPtr aPoint =
1251           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
1252       if (aReferredCoincidentPoints.empty())
1253         aReferredCoincidentPoints = SketchPlugin_Tools::findPointsCoincidentToPoint(aPoint);
1254       else if (aReferredCoincidentPoints.find(aPoint) == aReferredCoincidentPoints.end())
1255         return true; // non-coincident point has been found
1256       else
1257         hasRefsToPoints = true;
1258     }
1259   }
1260
1261   if (hasRefsToPoints)
1262     theError = "Attributes are referred to the same point";
1263   return !hasRefsToPoints;
1264 }
1265
1266 bool SketchPlugin_CirclePassedPointValidator::isValid(
1267     const AttributePtr& theAttribute,
1268     const std::list<std::string>&,
1269     Events_InfoMessage& theError) const
1270 {
1271   static const std::string aErrorMessage(
1272       "Passed point refers to the same feature as a center point");
1273
1274   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1275
1276   AttributeRefAttrPtr aCenterRef =
1277       anOwner->refattr(SketchPlugin_MacroCircle::CENTER_POINT_REF_ID());
1278   AttributeRefAttrPtr aPassedRef =
1279       anOwner->refattr(SketchPlugin_MacroCircle::PASSED_POINT_REF_ID());
1280
1281   if (!aPassedRef->isObject())
1282     return true;
1283
1284   FeaturePtr aPassedFeature = ModelAPI_Feature::feature(aPassedRef->object());
1285   if (!aPassedFeature)
1286     return true;
1287
1288   if (aCenterRef->isObject()) {
1289     if (aCenterRef->object() == aPassedRef->object()) {
1290       theError = aErrorMessage;
1291       return false;
1292     }
1293   } else {
1294     AttributePoint2DPtr aCenterPoint =
1295         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aCenterRef->attr());
1296     if (aCenterPoint) {
1297       std::set<FeaturePtr> aCoincidentFeatures =
1298           SketchPlugin_Tools::findFeaturesCoincidentToPoint(aCenterPoint);
1299       // check one of coincident features is a feature referred by passed point
1300       std::set<FeaturePtr>::const_iterator anIt = aCoincidentFeatures.begin();
1301       for(; anIt != aCoincidentFeatures.end(); ++anIt)
1302         if (*anIt == aPassedFeature) {
1303           theError = aErrorMessage;
1304           return false;
1305         }
1306     }
1307   }
1308   return true;
1309 }
1310
1311 bool SketchPlugin_ThirdPointValidator::isValid(
1312     const AttributePtr& theAttribute,
1313     const std::list<std::string>& theArguments,
1314     Events_InfoMessage& theError) const
1315 {
1316   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1317   return arePointsNotOnLine(anOwner, theError) &&
1318          arePointsNotSeparated(anOwner, theArguments, theError);
1319 }
1320
1321 static std::shared_ptr<GeomAPI_Pnt2d> toPoint(const FeaturePtr& theMacroCircle,
1322                                               const std::string& thePointAttrName,
1323                                               const std::string& theRefPointAttrName)
1324 {
1325   AttributePoint2DPtr aPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1326       theMacroCircle->attribute(thePointAttrName));
1327   AttributeRefAttrPtr aRefAttr = theMacroCircle->refattr(theRefPointAttrName);
1328
1329   std::shared_ptr<GeomAPI_Pnt2d> aPoint = aPointAttr->pnt();
1330   if (aRefAttr) {
1331     if (aRefAttr->isObject()) {
1332       // project a point onto selected feature
1333       std::shared_ptr<SketchPlugin_Feature> aFeature =
1334           std::dynamic_pointer_cast<SketchPlugin_Feature>(
1335           ModelAPI_Feature::feature(aRefAttr->object()));
1336       if (aFeature) {
1337         SketchPlugin_Sketch* aSketch = aFeature->sketch();
1338         std::shared_ptr<GeomAPI_Edge> anEdge =
1339             std::dynamic_pointer_cast<GeomAPI_Edge>(aFeature->lastResult()->shape());
1340         if (anEdge) {
1341           std::shared_ptr<GeomAPI_Pnt> aPoint3D = aSketch->to3D(aPoint->x(), aPoint->y());
1342           if (anEdge->isLine())
1343             aPoint3D = anEdge->line()->project(aPoint3D);
1344           else if (anEdge->isCircle())
1345             aPoint3D = anEdge->circle()->project(aPoint3D);
1346           if(aPoint3D)
1347             aPoint = aSketch->to2D(aPoint3D);
1348         }
1349       }
1350     } else {
1351       AttributePoint2DPtr anOtherPoint =
1352           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
1353       if (anOtherPoint)
1354         aPoint = anOtherPoint->pnt(); // the reference point is much more precise, use it
1355     }
1356   }
1357
1358   return aPoint;
1359 }
1360
1361 static void threePointsOfFeature(const FeaturePtr& theMacroFeature,
1362                                  std::shared_ptr<GeomAPI_Pnt2d> thePoints[3])
1363 {
1364   if (theMacroFeature->getKind() == SketchPlugin_MacroCircle::ID()) {
1365     thePoints[0] = toPoint(theMacroFeature,
1366           SketchPlugin_MacroCircle::FIRST_POINT_ID(),
1367           SketchPlugin_MacroCircle::FIRST_POINT_REF_ID());
1368     thePoints[1] = toPoint(theMacroFeature,
1369           SketchPlugin_MacroCircle::SECOND_POINT_ID(),
1370           SketchPlugin_MacroCircle::SECOND_POINT_REF_ID());
1371     thePoints[2] = toPoint(theMacroFeature,
1372           SketchPlugin_MacroCircle::THIRD_POINT_ID(),
1373           SketchPlugin_MacroCircle::THIRD_POINT_REF_ID());
1374   } else if (theMacroFeature->getKind() == SketchPlugin_MacroArc::ID()) {
1375     thePoints[0] = toPoint(theMacroFeature,
1376           SketchPlugin_MacroArc::START_POINT_2_ID(),
1377           SketchPlugin_MacroArc::START_POINT_REF_ID());
1378     thePoints[1] = toPoint(theMacroFeature,
1379           SketchPlugin_MacroArc::END_POINT_2_ID(),
1380           SketchPlugin_MacroArc::END_POINT_REF_ID());
1381     thePoints[2] = toPoint(theMacroFeature,
1382           SketchPlugin_MacroArc::PASSED_POINT_ID(),
1383           SketchPlugin_MacroArc::PASSED_POINT_REF_ID());
1384   }
1385 }
1386
1387 static bool isPointsOnLine(const std::shared_ptr<GeomAPI_Pnt2d>& thePoint1,
1388                            const std::shared_ptr<GeomAPI_Pnt2d>& thePoint2,
1389                            const std::shared_ptr<GeomAPI_Pnt2d>& thePoint3)
1390 {
1391   static const double aTolerance = 1.e-7;
1392   if (thePoint1->distance(thePoint2) < aTolerance ||
1393       thePoint1->distance(thePoint3) < aTolerance)
1394     return true;
1395
1396   std::shared_ptr<GeomAPI_Dir2d> aDirP1P2(new GeomAPI_Dir2d(thePoint2->x() - thePoint1->x(),
1397                                                             thePoint2->y() - thePoint1->y()));
1398   std::shared_ptr<GeomAPI_Dir2d> aDirP1P3(new GeomAPI_Dir2d(thePoint3->x() - thePoint1->x(),
1399                                                             thePoint3->y() - thePoint1->y()));
1400   return fabs(aDirP1P2->cross(aDirP1P3)) < aTolerance;
1401 }
1402
1403 static bool isOnSameSide(const std::shared_ptr<GeomAPI_Lin>& theLine,
1404                          const std::shared_ptr<GeomAPI_Pnt>& thePoint1,
1405                          const std::shared_ptr<GeomAPI_Pnt>& thePoint2)
1406 {
1407   static const double aTolerance = 1.e-7;
1408   std::shared_ptr<GeomAPI_Dir> aLineDir = theLine->direction();
1409   std::shared_ptr<GeomAPI_XYZ> aLineLoc = theLine->location()->xyz();
1410
1411   std::shared_ptr<GeomAPI_XYZ> aVec1 = thePoint1->xyz()->decreased(aLineLoc);
1412   // the first point is on the line
1413   if (aVec1->squareModulus() < aTolerance * aTolerance)
1414     return false;
1415   std::shared_ptr<GeomAPI_Dir> aDirP1L(new GeomAPI_Dir(aVec1));
1416   std::shared_ptr<GeomAPI_XYZ> aVec2 = thePoint2->xyz()->decreased(aLineLoc);
1417   // the second point is on the line
1418   if (aVec2->squareModulus() < aTolerance * aTolerance)
1419     return false;
1420   std::shared_ptr<GeomAPI_Dir> aDirP2L(new GeomAPI_Dir(aVec2));
1421
1422   return aLineDir->cross(aDirP1L)->dot(aLineDir->cross(aDirP2L)) > -aTolerance;
1423 }
1424
1425 static bool isOnSameSide(const std::shared_ptr<GeomAPI_Circ>& theCircle,
1426                          const std::shared_ptr<GeomAPI_Pnt>&  thePoint1,
1427                          const std::shared_ptr<GeomAPI_Pnt>&  thePoint2)
1428 {
1429   static const double aTolerance = 1.e-7;
1430   std::shared_ptr<GeomAPI_Pnt> aCenter = theCircle->center();
1431   double aDistP1C = thePoint1->distance(aCenter);
1432   double aDistP2C = thePoint2->distance(aCenter);
1433   return (aDistP1C - theCircle->radius()) * (aDistP2C - theCircle->radius()) > -aTolerance;
1434 }
1435
1436 bool SketchPlugin_ThirdPointValidator::arePointsNotOnLine(
1437     const FeaturePtr& theMacroFeature,
1438     Events_InfoMessage& theError) const
1439 {
1440   static const std::string aErrorPointsOnLine(
1441       "Selected points are on the same line");
1442
1443   std::shared_ptr<GeomAPI_Pnt2d> aPoints[3];
1444   threePointsOfFeature(theMacroFeature, aPoints);
1445
1446   if (isPointsOnLine(aPoints[0], aPoints[1], aPoints[2])) {
1447     theError = aErrorPointsOnLine;
1448     return false;
1449   }
1450   return true;
1451 }
1452
1453 bool SketchPlugin_ThirdPointValidator::arePointsNotSeparated(
1454     const FeaturePtr& theMacroFeature,
1455     const std::list<std::string>& theArguments,
1456     Events_InfoMessage& theError) const
1457 {
1458   static const std::string aErrorPointsApart(
1459       "Selected entity is lying between first two points");
1460
1461   AttributeRefAttrPtr aThirdPointRef = theMacroFeature->refattr(theArguments.front());
1462   FeaturePtr aRefByThird;
1463   if (aThirdPointRef->isObject())
1464     aRefByThird = ModelAPI_Feature::feature(aThirdPointRef->object());
1465   if (!aRefByThird)
1466     return true;
1467
1468   std::shared_ptr<GeomAPI_Pnt2d> aPoints[3];
1469   threePointsOfFeature(theMacroFeature, aPoints);
1470
1471   std::shared_ptr<GeomAPI_Edge> aThirdShape =
1472       std::dynamic_pointer_cast<GeomAPI_Edge>(aRefByThird->lastResult()->shape());
1473   if (!aThirdShape)
1474     return true;
1475
1476   SketchPlugin_Sketch* aSketch =
1477       std::dynamic_pointer_cast<SketchPlugin_Feature>(theMacroFeature)->sketch();
1478   std::shared_ptr<GeomAPI_Pnt> aFirstPnt3D = aSketch->to3D(aPoints[0]->x(), aPoints[0]->y());
1479   std::shared_ptr<GeomAPI_Pnt> aSecondPnt3D = aSketch->to3D(aPoints[1]->x(), aPoints[1]->y());
1480
1481   bool isOk = true;
1482   if (aThirdShape->isLine())
1483     isOk = isOnSameSide(aThirdShape->line(), aFirstPnt3D, aSecondPnt3D);
1484   else if (aThirdShape->isCircle() || aThirdShape->isArc())
1485     isOk = isOnSameSide(aThirdShape->circle(), aFirstPnt3D, aSecondPnt3D);
1486
1487   if (!isOk)
1488     theError = aErrorPointsApart;
1489   return isOk;
1490 }
1491
1492 bool SketchPlugin_ArcEndPointValidator::isValid(
1493     const AttributePtr& theAttribute,
1494     const std::list<std::string>& theArguments,
1495     Events_InfoMessage& theError) const
1496 {
1497   FeaturePtr aFeature = ModelAPI_Feature::feature(theAttribute->owner());
1498   AttributeRefAttrPtr anEndPointRef = aFeature->refattr(theArguments.front());
1499
1500   if(!anEndPointRef.get()) {
1501     return true;
1502   }
1503
1504   ObjectPtr anObject = anEndPointRef->object();
1505   AttributePtr anAttr = anEndPointRef->attr();
1506   if(!anObject.get() && !anAttr.get()) {
1507     return true;
1508   }
1509
1510   if(anEndPointRef->attr().get()) {
1511     return false;
1512   }
1513
1514   ResultPtr aResult = std::dynamic_pointer_cast<ModelAPI_Result>(anObject);
1515   if(aResult.get()) {
1516     GeomShapePtr aShape = aResult->shape();
1517     if(aShape.get() && aShape->isVertex()) {
1518       return false;
1519     }
1520   }
1521
1522   aFeature = ModelAPI_Feature::feature(anObject);
1523   if(aFeature.get()) {
1524     if(aFeature->getKind() == SketchPlugin_Point::ID()) {
1525       return false;
1526     }
1527   }
1528
1529   return true;
1530 }
1531
1532 static GeomShapePtr toInfiniteEdge(const GeomShapePtr theShape)
1533 {
1534   if(!theShape.get()) {
1535     return theShape;
1536   }
1537
1538   if(!theShape->isEdge()) {
1539     return theShape;
1540   }
1541
1542   std::shared_ptr<GeomAPI_Edge> anEdge(new GeomAPI_Edge(theShape));
1543
1544   if(!anEdge.get()) {
1545     return theShape;
1546   }
1547
1548   if(anEdge->isLine()) {
1549     std::shared_ptr<GeomAPI_Lin> aLine = anEdge->line();
1550     GeomShapePtr aShape = GeomAlgoAPI_EdgeBuilder::line(aLine);
1551     return aShape;
1552   }
1553
1554   if(anEdge->isCircle() || anEdge->isArc()) {
1555     std::shared_ptr<GeomAPI_Circ> aCircle = anEdge->circle();
1556     GeomShapePtr aShape = GeomAlgoAPI_EdgeBuilder::lineCircle(aCircle);
1557     return aShape;
1558   }
1559
1560   return theShape;
1561 }
1562
1563 bool SketchPlugin_ArcEndPointIntersectionValidator::isValid(
1564     const AttributePtr& theAttribute,
1565     const std::list<std::string>& theArguments,
1566     Events_InfoMessage& theError) const
1567 {
1568   std::shared_ptr<SketchPlugin_MacroArc> anArcFeature =
1569       std::dynamic_pointer_cast<SketchPlugin_MacroArc>(theAttribute->owner());
1570   AttributeRefAttrPtr anEndPointRef = anArcFeature->refattr(theArguments.front());
1571
1572   if(!anEndPointRef.get()) {
1573     return true;
1574   }
1575
1576   GeomShapePtr anArcShape = toInfiniteEdge(anArcFeature->getArcShape(false));
1577
1578   if(!anArcShape.get() || anArcShape->isNull()) {
1579     return true;
1580   }
1581
1582   ObjectPtr anObject = anEndPointRef->object();
1583   AttributePtr anAttr = anEndPointRef->attr();
1584   if(!anObject.get() && !anAttr.get()) {
1585     return true;
1586   }
1587
1588   ResultPtr aResult = std::dynamic_pointer_cast<ModelAPI_Result>(anObject);
1589   if(aResult.get()) {
1590     GeomShapePtr aShape = aResult->shape();
1591     if (!aShape->isEdge())
1592       return true;
1593     aShape = toInfiniteEdge(aShape);
1594     if(aShape.get() && !aShape->isNull()) {
1595       if(anArcShape->isIntersect(aShape)) {
1596         return true;
1597       }
1598     }
1599   }
1600
1601   FeaturePtr aSelectedFeature = ModelAPI_Feature::feature(anObject);
1602   if(aSelectedFeature.get()) {
1603     std::list<ResultPtr> aResults = aSelectedFeature->results();
1604     for(std::list<ResultPtr>::const_iterator anIt = aResults.cbegin();
1605         anIt != aResults.cend();
1606         ++anIt)
1607     {
1608       GeomShapePtr aShape = (*anIt)->shape();
1609       if (!aShape->isEdge())
1610         return true;
1611       aShape = toInfiniteEdge(aShape);
1612       if(aShape.get() && !aShape->isNull()) {
1613         if(anArcShape->isIntersect(aShape)) {
1614           return true;
1615         }
1616       }
1617     }
1618   }
1619
1620   return false;
1621 }
1622
1623 bool SketchPlugin_HasNoConstraint::isValid(const AttributePtr& theAttribute,
1624                                            const std::list<std::string>& theArguments,
1625                                            Events_InfoMessage& theError) const
1626 {
1627   std::set<std::string> aFeatureKinds;
1628   for (std::list<std::string>::const_iterator anArgIt = theArguments.begin();
1629        anArgIt != theArguments.end(); anArgIt++) {
1630     aFeatureKinds.insert(*anArgIt);
1631   }
1632
1633   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
1634     theError = "The attribute with the %1 type is not processed";
1635     theError.arg(theAttribute->attributeType());
1636     return false;
1637   }
1638
1639   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
1640                                                                       (theAttribute);
1641   bool isObject = aRefAttr->isObject();
1642   if (!isObject) {
1643     theError = "It uses an empty object";
1644     return false;
1645   }
1646   ObjectPtr anObject = aRefAttr->object();
1647   FeaturePtr aFeature = ModelAPI_Feature::feature(anObject);
1648   if (!aFeature.get()) {
1649     theError = "The feature of the checked attribute is empty";
1650     return false;
1651   }
1652
1653   FeaturePtr aCurrentFeature = ModelAPI_Feature::feature(aRefAttr->owner());
1654
1655   std::set<AttributePtr> aRefsList = anObject->data()->refsToMe();
1656   std::set<AttributePtr>::const_iterator anIt = aRefsList.begin();
1657   for (; anIt != aRefsList.end(); anIt++) {
1658     FeaturePtr aRefFeature = ModelAPI_Feature::feature((*anIt)->owner());
1659     if (aRefFeature.get() && aCurrentFeature != aRefFeature &&
1660         aFeatureKinds.find(aRefFeature->getKind()) != aFeatureKinds.end())
1661       return false; // constraint is found, that means that the check is not valid
1662   }
1663   return true;
1664 }
1665
1666 bool SketchPlugin_ReplicationReferenceValidator::isValid(
1667     const AttributePtr& theAttribute,
1668     const std::list<std::string>& theArguments,
1669     Events_InfoMessage& theError) const
1670 {
1671   AttributeRefAttrPtr aRefAttr =
1672       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
1673   if (!aRefAttr)
1674   {
1675     theError = "Incorrect attribute";
1676     return false;
1677   }
1678
1679   ObjectPtr anOwner;
1680   if (aRefAttr->isObject())
1681     anOwner = aRefAttr->object();
1682   else
1683   {
1684     AttributePtr anAttr = aRefAttr->attr();
1685     anOwner = anAttr->owner();
1686   }
1687   FeaturePtr anAttrOwnerFeature = ModelAPI_Feature::feature(anOwner);
1688   if (!anAttrOwnerFeature)
1689     return true;
1690   AttributeBooleanPtr aCopyAttr = anAttrOwnerFeature->boolean(SketchPlugin_SketchEntity::COPY_ID());
1691   if (!aCopyAttr || !aCopyAttr->value())
1692     return true; // feature is not a copy, thus valid
1693
1694   // check the copy feature is already referred by the "Multi" feature
1695   FeaturePtr aMultiFeature = ModelAPI_Feature::feature(theAttribute->owner());
1696   AttributeRefListPtr aRefList = aMultiFeature->reflist(theArguments.front());
1697   for (int i = 0; i < aRefList->size(); ++i)
1698   {
1699     FeaturePtr aRefOwner = ModelAPI_Feature::feature(aRefList->object(i));
1700     if (aRefOwner == anAttrOwnerFeature)
1701     {
1702       theError = "Attribute refers to the object generated by this feature";
1703       return false;
1704     }
1705   }
1706
1707   return true;
1708 }
1709
1710 bool SketchPlugin_SketchFeatureValidator::isValid(const AttributePtr& theAttribute,
1711                                                   const std::list<std::string>& theArguments,
1712                                                   Events_InfoMessage& theError) const
1713 {
1714   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
1715     theError = "The attribute with the %1 type is not processed";
1716     theError.arg(theAttribute->attributeType());
1717     return false;
1718   }
1719
1720   // check the attribute refers to a sketch feature
1721   AttributeRefAttrPtr aRefAttr =
1722       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
1723   bool isSketchFeature = aRefAttr->isObject();
1724   if (isSketchFeature) {
1725     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->object());
1726     isSketchFeature = aFeature.get() != NULL;
1727     if (isSketchFeature) {
1728       std::shared_ptr<SketchPlugin_Feature> aSketchFeature =
1729           std::dynamic_pointer_cast<SketchPlugin_Feature>(aFeature);
1730       isSketchFeature = aSketchFeature.get() != NULL;
1731     }
1732   }
1733
1734   if (isSketchFeature)
1735     return true;
1736
1737   theError = "The object selected is not a sketch feature";
1738   return false;
1739 }
1740
1741 bool SketchPlugin_MultiRotationAngleValidator::isValid(const AttributePtr& theAttribute,
1742                                                        const std::list<std::string>& theArguments,
1743                                                        Events_InfoMessage& theError) const
1744 {
1745   if (theAttribute->attributeType() != ModelAPI_AttributeDouble::typeId()) {
1746     theError = "The attribute with the %1 type is not processed";
1747     theError.arg(theAttribute->attributeType());
1748     return false;
1749   }
1750
1751   AttributeDoublePtr anAngleAttr =
1752     std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(theAttribute);
1753
1754   FeaturePtr aMultiRotation = ModelAPI_Feature::feature(theAttribute->owner());
1755   AttributeStringPtr anAngleType =
1756       aMultiRotation->string(SketchPlugin_MultiRotation::ANGLE_TYPE());
1757   AttributeIntegerPtr aNbCopies =
1758       aMultiRotation->integer(SketchPlugin_MultiRotation::NUMBER_OF_OBJECTS_ID());
1759
1760   if (anAngleType->value() != "FullAngle")
1761   {
1762     double aFullAngleValue = anAngleAttr->value() * (aNbCopies->value() - 1);
1763     if (aFullAngleValue < -1.e-7 || aFullAngleValue > 359.9999999)
1764     {
1765       theError = "Rotation single angle should produce full angle less than 360 degree";
1766       return false;
1767     }
1768   }
1769   else
1770   {
1771     double aFullAngleValue = anAngleAttr->value();
1772     if (aFullAngleValue < -1.e-7 || aFullAngleValue > 360.0000001)
1773     {
1774       theError = "Rotation full angle should be in range [0, 360]";
1775       return false;
1776     }
1777   }
1778
1779   return true;
1780 }