src/SketchPlugin/SketchPlugin_Validators.cpp

   1 // Copyright (C) 2014-2020  CEA/DEN, EDF R&D
   2 //
   3 // This library is free software; you can redistribute it and/or
   4 // modify it under the terms of the GNU Lesser General Public
   5 // License as published by the Free Software Foundation; either
   6 // version 2.1 of the License, or (at your option) any later version.
   7 //
   8 // This library is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11 // Lesser General Public License for more details.
  12 //
  13 // You should have received a copy of the GNU Lesser General Public
  14 // License along with this library; if not, write to the Free Software
  15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  16 //
  17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  18 //
  19
  20 #include "SketchPlugin_Validators.h"
  21
  22 #include "SketchPlugin_Arc.h"
  23 #include "SketchPlugin_BSpline.h"
  24 #include "SketchPlugin_BSplinePeriodic.h"
  25 #include "SketchPlugin_Circle.h"
  26 #include "SketchPlugin_ConstraintCoincidence.h"
  27 #include "SketchPlugin_ConstraintCoincidenceInternal.h"
  28 #include "SketchPlugin_ConstraintDistance.h"
  29 #include "SketchPlugin_ConstraintRigid.h"
  30 #include "SketchPlugin_ConstraintTangent.h"
  31 #include "SketchPlugin_Ellipse.h"
  32 #include "SketchPlugin_EllipticArc.h"
  33 #include "SketchPlugin_Fillet.h"
  34 #include "SketchPlugin_Line.h"
  35 #include "SketchPlugin_MacroArc.h"
  36 #include "SketchPlugin_MacroCircle.h"
  37 #include "SketchPlugin_MultiRotation.h"
  38 #include "SketchPlugin_Point.h"
  39 #include "SketchPlugin_Sketch.h"
  40 #include "SketchPlugin_Trim.h"
  41 #include "SketchPlugin_Tools.h"
  42
  43 #include "SketcherPrs_Tools.h"
  44
  45 #include <Events_InfoMessage.h>
  46
  47 #include <ModelAPI_Data.h>
  48 #include <ModelAPI_Validator.h>
  49 #include <ModelAPI_AttributeDouble.h>
  50 #include <ModelAPI_AttributeInteger.h>
  51 #include <ModelAPI_AttributeRefAttr.h>
  52 #include <ModelAPI_AttributeRefList.h>
  53 #include <ModelAPI_AttributeSelectionList.h>
  54 #include <ModelAPI_AttributeString.h>
  55 #include <ModelAPI_Session.h>
  56 #include <ModelAPI_Tools.h>
  57 #include <ModelAPI_ResultConstruction.h>
  58
  59 #include <ModelGeomAlgo_Point2D.h>
  60 #include <ModelGeomAlgo_Shape.h>
  61
  62 #include <GeomAlgoAPI_EdgeBuilder.h>
  63 #include <GeomAlgoAPI_ShapeTools.h>
  64
  65 #include <GeomAPI_Circ.h>
  66 #include <GeomAPI_Dir2d.h>
  67 #include <GeomAPI_Ellipse.h>
  68 #include <GeomAPI_Lin.h>
  69 #include <GeomAPI_Edge.h>
  70 #include <GeomAPI_Vertex.h>
  71
  72 #include <GeomDataAPI_Point2D.h>
  73 #include <GeomDataAPI_Point2DArray.h>
  74
  75 #include <algorithm>
  76 #include <cmath>
  77
  78 const double tolerance = 1.e-7;
  79
  80 static bool isSpline(FeaturePtr theFeature)
  81 {
  82   return theFeature && (theFeature->getKind() == SketchPlugin_BSpline::ID() ||
  83                         theFeature->getKind() == SketchPlugin_BSplinePeriodic::ID());
  84 }
  85
  86
  87 bool SketchPlugin_DistanceAttrValidator::isValid(const AttributePtr& theAttribute,
  88                                                  const std::list<std::string>& theArguments,
  89                                                  Events_InfoMessage& theError) const
  90 {
  91   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
  92     theError = "The attribute with the %1 type is not processed";
  93     theError.arg(theAttribute->attributeType());
  94     return false;
  95   }
  96
  97   // there is a check whether the feature contains a point and a linear edge or two point values
  98   std::string aParamA = theArguments.front();
  99   SessionPtr aMgr = ModelAPI_Session::get();
 100   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 101
 102   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
 103                                                                       (theAttribute);
 104   bool isObject = aRefAttr->isObject();
 105   if (!isObject) {
 106     // an attribute is a point. A point value is valid always for the distance
 107     return true;
 108   } else {
 109     // 1. check whether the references object is a linear
 110     ObjectPtr anObject = aRefAttr->object();
 111
 112     const ModelAPI_AttributeValidator* aShapeValidator =
 113       dynamic_cast<const ModelAPI_AttributeValidator*>(
 114       aFactory->validator("GeomValidators_ShapeType"));
 115     std::list<std::string> anArguments;
 116     anArguments.push_back("circle");
 117     Events_InfoMessage aCircleError;
 118     bool aShapeValid = aShapeValidator->isValid(aRefAttr, anArguments, aCircleError);
 119     // the circle line is not a valid case
 120     if (aShapeValid) {
 121       theError = "Circle can not be used in distance constraint";
 122       return false;
 123     }
 124
 125     anArguments.clear();
 126     anArguments.push_back("line");
 127     Events_InfoMessage aLineError;
 128     aShapeValid = aShapeValidator->isValid(aRefAttr, anArguments, aLineError);
 129     // if the attribute value is not a line, that means it is a vertex. A vertex is always valid
 130     if (aShapeValid) {
 131       FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 132       // If it is a line then we have to check that first attribute id not a line
 133       std::shared_ptr<SketchPlugin_Feature> aSFeature =
 134         std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
 135       SketchPlugin_Sketch* aSketch = aSFeature->sketch();
 136       std::shared_ptr<GeomAPI_Ax3> aPlane = SketchPlugin_Sketch::plane(aSketch);
 137       std::shared_ptr<GeomDataAPI_Point2D> aPoint = SketcherPrs_Tools::getFeaturePoint(
 138         aFeature->data(), aParamA, aPlane);
 139       if (!aPoint.get()) {
 140         theError = "One of parameters of distance constraint should be a point";
 141         return false;
 142       }
 143     }
 144   }
 145   return true;
 146 }
 147
 148 bool SketchPlugin_TangentAttrValidator::isValid(const AttributePtr& theAttribute,
 149                                                 const std::list<std::string>& theArguments,
 150                                                 Events_InfoMessage& theError) const
 151 {
 152   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 153     theError = "The attribute with the %1 type is not processed";
 154     theError.arg(theAttribute->attributeType());
 155     return false;
 156   }
 157
 158   // there is a check whether the feature contains a point and a linear edge or two point values
 159   std::string aParamA = theArguments.front();
 160
 161   FeaturePtr anAttributeFeature =
 162     std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 163   AttributeRefAttrPtr aRefAttr =
 164     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 165
 166   bool isObject = aRefAttr->isObject();
 167   ObjectPtr anObject = aRefAttr->object();
 168   if (!isObject || !anObject.get()) {
 169     theError = "It uses an empty object";
 170     return false;
 171   }
 172
 173   FeaturePtr aRefFea = ModelAPI_Feature::feature(anObject);
 174
 175   AttributeRefAttrPtr aOtherAttr = anAttributeFeature->data()->refattr(aParamA);
 176   ObjectPtr aOtherObject = aOtherAttr->object();
 177   FeaturePtr aOtherFea = ModelAPI_Feature::feature(aOtherObject);
 178   if (!aOtherFea)
 179     return true;
 180
 181   if (aRefFea->getKind() == SketchPlugin_Line::ID() &&
 182       aOtherFea->getKind() == SketchPlugin_Line::ID()) {
 183     theError = "Two segments cannot be tangent";
 184     return false;
 185   }
 186   else if (isSpline(aRefFea) && isSpline(aOtherFea)) {
 187     theError = "Two B-splines cannot be tangent";
 188     return false;
 189   }
 190
 191   bool isValid = true;
 192   bool hasSpline = isSpline(aRefFea);
 193   if (!hasSpline && isSpline(aOtherFea)) {
 194     hasSpline = true;
 195     std::swap(aRefFea, aOtherFea);
 196   }
 197   if (hasSpline) {
 198     auto isApplicableCoincidence = [](FeaturePtr theFeature, const std::string& theAttrName) {
 199       AttributeRefAttrPtr aRefAttr = theFeature->refattr(theAttrName);
 200       if (aRefAttr->isObject())
 201         return false;
 202       AttributePtr anAttr = aRefAttr->attr();
 203       FeaturePtr anOwner = ModelAPI_Feature::feature(anAttr->owner());
 204       AttributePoint2DPtr aPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anAttr);
 205       if (aPointAttr) {
 206         return anOwner->getKind() == SketchPlugin_BSpline::ID() &&
 207               (aPointAttr->id() == SketchPlugin_BSpline::START_ID() ||
 208                aPointAttr->id() == SketchPlugin_BSpline::END_ID());
 209       }
 210
 211       AttributePoint2DArrayPtr aPntArray =
 212           std::dynamic_pointer_cast<GeomDataAPI_Point2DArray>(anAttr);
 213       if (aPntArray && anOwner->getKind() == SketchPlugin_BSpline::ID()) {
 214         // check index of the pole
 215         AttributeIntegerPtr anIndex = theAttrName == SketchPlugin_Constraint::ENTITY_A() ?
 216             theFeature->integer(SketchPlugin_ConstraintCoincidenceInternal::INDEX_ENTITY_A()) :
 217             theFeature->integer(SketchPlugin_ConstraintCoincidenceInternal::INDEX_ENTITY_B());
 218         return anIndex && (anIndex->value() == 0 || anIndex->value() == aPntArray->size() - 1);
 219       }
 220       return false;
 221     };
 222
 223     isValid = false;
 224     AttributePoint2DArrayPtr aBSplinePoles = std::dynamic_pointer_cast<GeomDataAPI_Point2DArray>(
 225         aRefFea->attribute(SketchPlugin_BSplineBase::POLES_ID()));
 226     // additional check the B-spline edge and the other edge have a coincident boundary point
 227     std::set<FeaturePtr> aCoincidences = SketchPlugin_Tools::findCoincidentConstraints(aRefFea);
 228     for (std::set<FeaturePtr>::iterator anIt = aCoincidences.begin();
 229          anIt != aCoincidences.end() && !isValid; ++anIt) {
 230       std::set<FeaturePtr> aCoinc;
 231       if (isApplicableCoincidence(*anIt, SketchPlugin_Constraint::ENTITY_A()))
 232         SketchPlugin_Tools::findCoincidences(*anIt, SketchPlugin_Constraint::ENTITY_B(),
 233                                              aCoinc, true);
 234       else if (isApplicableCoincidence(*anIt, SketchPlugin_Constraint::ENTITY_B()))
 235         SketchPlugin_Tools::findCoincidences(*anIt, SketchPlugin_Constraint::ENTITY_A(),
 236                                              aCoinc, true);
 237
 238       isValid = aCoinc.find(aOtherFea) != aCoinc.end();
 239     }
 240   }
 241
 242   return isValid;
 243 }
 244
 245 bool SketchPlugin_PerpendicularAttrValidator::isValid(const AttributePtr& theAttribute,
 246                                                       const std::list<std::string>& theArguments,
 247                                                       Events_InfoMessage& theError) const
 248 {
 249   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 250     theError = "The attribute with the %1 type is not processed";
 251     theError.arg(theAttribute->attributeType());
 252     return false;
 253   }
 254
 255   std::string aParamA = theArguments.front();
 256
 257   FeaturePtr anOwner = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 258   AttributeRefAttrPtr aRefAttr =
 259       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 260
 261   bool isObject = aRefAttr->isObject();
 262   ObjectPtr anObject = aRefAttr->object();
 263   if (isObject && anObject.get()) {
 264     FeaturePtr aRefFea = ModelAPI_Feature::feature(anObject);
 265
 266     AttributeRefAttrPtr aOtherAttr = anOwner->refattr(aParamA);
 267     ObjectPtr aOtherObject = aOtherAttr->object();
 268     FeaturePtr aOtherFea = ModelAPI_Feature::feature(aOtherObject);
 269
 270     // at least one feature should be a line
 271     if (aRefFea->getKind() != SketchPlugin_Line::ID() &&
 272         aOtherFea && aOtherFea->getKind() != SketchPlugin_Line::ID()) {
 273       theError = "At least one feature should be a line";
 274       return false;
 275     }
 276     else if (isSpline(aRefFea) || isSpline(aOtherFea)) {
 277       theError = "B-spline is not supported";
 278       return false;
 279     }
 280   }
 281   else {
 282     theError = "It uses an empty object";
 283     return false;
 284   }
 285
 286   return true;
 287 }
 288
 289 bool SketchPlugin_NotFixedValidator::isValid(const AttributePtr& theAttribute,
 290                                              const std::list<std::string>& theArguments,
 291                                              Events_InfoMessage& theError) const
 292 {
 293   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 294     theError = "The attribute with the %1 type is not processed";
 295     theError.arg(theAttribute->attributeType());
 296     return false;
 297   }
 298
 299   std::shared_ptr<SketchPlugin_Feature> aFeature =
 300       std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
 301   if (!aFeature)
 302     return true;
 303
 304   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 305
 306   SketchPlugin_Sketch* aSketch = aFeature->sketch();
 307   int aNbFeatures = aSketch->numberOfSubs();
 308   for (int anInd = 0; anInd < aNbFeatures; anInd++) {
 309     FeaturePtr aSubFeature = aSketch->subFeature(anInd);
 310     if (aSubFeature->getKind() != SketchPlugin_ConstraintRigid::ID() || aSubFeature == aFeature)
 311       continue;
 312     AttributeRefAttrPtr aRAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 313         aSubFeature->attribute(SketchPlugin_ConstraintRigid::ENTITY_A()));
 314     if (aRefAttr->isObject()) {
 315       if (aRefAttr->object() == aRAttr->object()) {
 316         ObjectPtr anObject = aRefAttr->object();
 317         std::string aName = anObject.get() ? anObject->data()->name() : "";
 318         theError = "The object %1 has been already fixed.";
 319         theError.arg(aName);
 320         return false;
 321       }
 322     }
 323     else if (aRefAttr->attr() == aRAttr->attr()) {
 324       AttributePtr anAttribute = aRefAttr->attr();
 325       std::string aName = anAttribute.get() ? anAttribute->id() : "";
 326       theError = "The attribute %1 has been already fixed.";
 327       theError.arg(aName);
 328       return false;
 329     }
 330   }
 331   return true;
 332 }
 333
 334 bool SketchPlugin_EqualAttrValidator::isValid(const AttributePtr& theAttribute,
 335                                               const std::list<std::string>& theArguments,
 336                                               Events_InfoMessage& theError) const
 337 {
 338   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 339     theError = "The attribute with the %1 type is not processed";
 340     theError.arg(theAttribute->attributeType());
 341     return false;
 342   }
 343
 344   std::string aParamA = theArguments.front();
 345   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 346   AttributeRefAttrPtr aRefAttr[2];
 347   aRefAttr[0] = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 348   aRefAttr[1] = aFeature->data()->refattr(aParamA);
 349
 350   if (!aRefAttr[0]->isObject() || !aRefAttr[1]->isObject()) {
 351     theError = "Attributes can not be used in equal constraint";
 352     return false;
 353   }
 354
 355   std::string aType[2];
 356   std::list<std::string> anArguments;
 357   for (int i = 0; i < 2; i++) {
 358     aFeature = ModelAPI_Feature::feature(aRefAttr[i]->object());
 359     if (!aFeature.get())
 360       return true;
 361
 362     aType[i] = aFeature->getKind();
 363     if (aFeature->getKind() != SketchPlugin_Line::ID() &&
 364         aFeature->getKind() != SketchPlugin_Circle::ID() &&
 365         aFeature->getKind() != SketchPlugin_Arc::ID() &&
 366         aFeature->getKind() != SketchPlugin_Ellipse::ID() &&
 367         aFeature->getKind() != SketchPlugin_EllipticArc::ID()) {
 368       theError = "The %1 feature is not supported by the Equal constraint.";
 369       theError.arg(aFeature->getKind());
 370       // wrong type of attribute
 371       return false;
 372     }
 373   }
 374
 375   bool isOk = aType[0] == aType[1];
 376   if (!isOk) {
 377     // circle and arc may be equal
 378     isOk = (aType[0] == SketchPlugin_Arc::ID() && aType[1] == SketchPlugin_Circle::ID())
 379         || (aType[0] == SketchPlugin_Circle::ID() && aType[1] == SketchPlugin_Arc::ID());
 380   }
 381   if (!isOk) {
 382     // ellipse and elliptic arc may be equal
 383     isOk = (aType[0] == SketchPlugin_EllipticArc::ID() && aType[1] == SketchPlugin_Ellipse::ID())
 384         || (aType[0] == SketchPlugin_Ellipse::ID() && aType[1] == SketchPlugin_EllipticArc::ID());
 385   }
 386   if (!isOk) {
 387     theError = "Features with kinds %1 and %2 can not be equal.";
 388     theError.arg(aType[0]).arg(aType[1]);
 389     return false;
 390   }
 391   return true;
 392 }
 393
 394 bool SketchPlugin_MirrorAttrValidator::isValid(const AttributePtr& theAttribute,
 395                                                const std::list<std::string>& theArguments,
 396                                                Events_InfoMessage& theError) const
 397 {
 398   if (theAttribute->attributeType() != ModelAPI_AttributeRefList::typeId()) {
 399     theError = "The attribute with the %1 type is not processed";
 400     theError.arg(theAttribute->attributeType());
 401     return false;
 402   }
 403
 404   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 405   AttributeRefListPtr aSelAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(theAttribute);
 406
 407   AttributeRefListPtr aRefListOfMirrored = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 408       aFeature->attribute(SketchPlugin_Constraint::ENTITY_C()));
 409   std::list<ObjectPtr> aMirroredObjects = aRefListOfMirrored->list();
 410
 411   for(int anInd = 0; anInd < aSelAttr->size(); anInd++) {
 412     ObjectPtr aSelObject = aSelAttr->object(anInd);
 413
 414     // B-splines are not supported in Mirror yet
 415     FeaturePtr aSelFeature = ModelAPI_Feature::feature(aSelObject);
 416     if (aSelFeature && (aSelFeature->getKind() == SketchPlugin_BSpline::ID() ||
 417         aSelFeature->getKind() == SketchPlugin_BSplinePeriodic::ID())) {
 418       theError = "Not supported";
 419       return false;
 420     }
 421
 422     std::string aName = aSelObject.get() ? aSelObject->data()->name() : "";
 423     std::list<ObjectPtr>::iterator aMirIter = aMirroredObjects.begin();
 424     for (; aMirIter != aMirroredObjects.end(); aMirIter++)
 425       if (aSelObject == *aMirIter) {
 426         theError = "The object %1 is a result of mirror";
 427         theError.arg(aName);
 428         return false;
 429       }
 430   }
 431   return true;
 432 }
 433
 434 bool SketchPlugin_CoincidenceAttrValidator::isValid(const AttributePtr& theAttribute,
 435                                                     const std::list<std::string>& theArguments,
 436                                                     Events_InfoMessage& theError) const
 437 {
 438   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 439     theError = "The attribute with the %1 type is not processed";
 440     theError.arg(theAttribute->attributeType());
 441     return false;
 442   }
 443
 444   // there is a check whether the feature contains a point and a linear edge or two point values
 445   std::string aParamA = theArguments.front();
 446
 447   FeaturePtr aConstraint = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 448   AttributeRefAttrPtr aRefAttrA = aConstraint->data()->refattr(aParamA);
 449   if (!aRefAttrA) {
 450     theError = "The %1 attribute should be %2";
 451     theError.arg(aParamA).arg(ModelAPI_AttributeRefAttr::typeId());
 452     return false;
 453   }
 454
 455   AttributeRefAttrPtr aRefAttrB =
 456     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 457
 458   // first attribute is a point, it may coincide with any object
 459   if (!aRefAttrA->isObject())
 460     return true;
 461   else {
 462     ObjectPtr anObject = aRefAttrA->object();
 463     if (!anObject.get()) {
 464       theError = "%1 attribute has an empty object";
 465       theError.arg(aParamA);
 466       return false;
 467     }
 468     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrA->object());
 469     if (!aFeature.get()) {
 470       theError = "%1 attribute has an empty feature";
 471       theError.arg(aParamA);
 472       return false;
 473     }
 474
 475     if (aFeature->getKind() == SketchPlugin_Point::ID())
 476       return true;
 477   }
 478
 479   // second attribute is a point, it may coincide with any object
 480   if (!aRefAttrB->isObject())
 481     return true;
 482   else {
 483     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrB->object());
 484     if (!aFeature) {
 485       theError = "%1 attribute has an empty object";
 486       theError.arg(theAttribute->id());
 487       return false;
 488     }
 489     if (aFeature->getKind() == SketchPlugin_Point::ID())
 490       return true;
 491   }
 492   theError = "There is no an attribute filled by a point";
 493   return false;
 494 }
 495
 496
 497 bool SketchPlugin_CopyValidator::isValid(const AttributePtr& theAttribute,
 498                                          const std::list<std::string>& theArguments,
 499                                          Events_InfoMessage& theError) const
 500 {
 501   if (theAttribute->attributeType() != ModelAPI_AttributeRefList::typeId()) {
 502     theError = "The attribute with the %1 type is not processed";
 503     theError.arg(theAttribute->attributeType());
 504     return false;
 505   }
 506
 507   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 508   AttributeRefListPtr aSelAttr =
 509     std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(theAttribute);
 510
 511   AttributeRefListPtr aRefListOfInitial = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 512       aFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
 513   AttributeRefListPtr aRefListOfCopied = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 514       aFeature->attribute(SketchPlugin_Constraint::ENTITY_B()));
 515   std::list<ObjectPtr> anInitialObjects = aRefListOfInitial->list();
 516   std::list<ObjectPtr> aCopiedObjects = aRefListOfCopied->list();
 517
 518   std::list<ObjectPtr>::iterator anObjIter;
 519   for(int anInd = 0; anInd < aSelAttr->size(); anInd++) {
 520     ObjectPtr aSelObject = aSelAttr->object(anInd);
 521     anObjIter = anInitialObjects.begin();
 522     for (; anObjIter != anInitialObjects.end(); anObjIter++)
 523       if (aSelObject == *anObjIter)
 524         break;
 525     if (anObjIter != anInitialObjects.end())
 526       continue;
 527
 528     // B-splines are not supported in Copying features
 529     FeaturePtr aSelFeature = ModelAPI_Feature::feature(aSelObject);
 530     if (aSelFeature && (aSelFeature->getKind() == SketchPlugin_BSpline::ID() ||
 531         aSelFeature->getKind() == SketchPlugin_BSplinePeriodic::ID())) {
 532       theError = "Not supported";
 533       return false;
 534     }
 535
 536     anObjIter = aCopiedObjects.begin();
 537     for (; anObjIter != aCopiedObjects.end(); anObjIter++)
 538       if (aSelObject == *anObjIter) {
 539         std::string aName = aSelObject.get() ? aSelObject->data()->name() : "";
 540         theError = "The object %1 is a result of copy";
 541         theError.arg(aName);
 542         return false;
 543       }
 544   }
 545   return true;
 546 }
 547
 548 bool SketchPlugin_SolverErrorValidator::isValid(
 549   const std::shared_ptr<ModelAPI_Feature>& theFeature,
 550   const std::list<std::string>& theArguments,
 551   Events_InfoMessage& theError) const
 552 {
 553   AttributeStringPtr aAttributeString = theFeature->string(SketchPlugin_Sketch::SOLVER_ERROR());
 554
 555   if (!aAttributeString->value().empty()) {
 556     theError = aAttributeString->value();
 557     return false;
 558   }
 559
 560   return true;
 561 }
 562
 563 bool SketchPlugin_SolverErrorValidator::isNotObligatory(std::string theFeature,
 564                                                         std::string theAttribute)
 565 {
 566   return true;
 567 }
 568
 569 static bool hasSameTangentFeature(const std::set<AttributePtr>& theRefsList,
 570                                   const FeaturePtr theFeature)
 571 {
 572   for(std::set<AttributePtr>::const_iterator
 573       anIt = theRefsList.cbegin(); anIt != theRefsList.cend(); ++anIt) {
 574     std::shared_ptr<ModelAPI_Attribute> aAttr = (*anIt);
 575     FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aAttr->owner());
 576     if (!aFeature)
 577       continue;
 578     if (aFeature->getKind() == SketchPlugin_ConstraintTangent::ID()) {
 579       AttributeRefAttrPtr anAttrRefA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 580         aFeature->attribute(SketchPlugin_ConstraintTangent::ENTITY_A()));
 581       AttributeRefAttrPtr anAttrRefB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 582         aFeature->attribute(SketchPlugin_ConstraintTangent::ENTITY_B()));
 583       if(anAttrRefA.get()) {
 584         ResultPtr aResA = std::dynamic_pointer_cast<ModelAPI_Result>(anAttrRefA->object());
 585         if(aResA.get()) {
 586           DocumentPtr aDoc = aResA->document();
 587           if(aDoc.get()) {
 588             FeaturePtr aFeatureA = aDoc->feature(aResA);
 589             if(aFeatureA.get() && aFeatureA == theFeature) {
 590               return true;
 591             }
 592           }
 593         }
 594       }
 595       if(anAttrRefB.get()) {
 596         ResultPtr aResB = std::dynamic_pointer_cast<ModelAPI_Result>(anAttrRefB->object());
 597         if(aResB.get()) {
 598           DocumentPtr aDoc = aResB->document();
 599           if(aDoc.get()) {
 600             FeaturePtr aFeatureB = aDoc->feature(aResB);
 601             if(aFeatureB.get() && aFeatureB == theFeature) {
 602               return true;
 603             }
 604           }
 605         }
 606       }
 607     }
 608   }
 609   return false;
 610 }
 611
 612 static bool isPointPointCoincidence(const FeaturePtr& theCoincidence)
 613 {
 614   AttributeRefAttrPtr aRefAttr[2] = {
 615       theCoincidence->refattr(SketchPlugin_Constraint::ENTITY_A()),
 616       theCoincidence->refattr(SketchPlugin_Constraint::ENTITY_B())
 617   };
 618
 619   bool arePoints = true;
 620   for (int i = 0; i < 2 && arePoints; ++i) {
 621     if (aRefAttr[i]->isObject()) {
 622       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr[i]->object());
 623       arePoints = aFeature.get() && aFeature->getKind() == SketchPlugin_Point::ID();
 624     } else
 625       arePoints = aRefAttr[i]->attr().get() != NULL;
 626   }
 627   return arePoints;
 628 }
 629
 630 bool SketchPlugin_FilletVertexValidator::isValid(const AttributePtr& theAttribute,
 631                                                  const std::list<std::string>& theArguments,
 632                                                  Events_InfoMessage& theError) const
 633 {
 634   AttributeRefAttrPtr aPointRefAttr =
 635     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 636   if(!aPointRefAttr.get()) {
 637     theError = "Error: Point not selected.";
 638     return false;
 639   }
 640
 641   AttributePtr aPointAttribute = aPointRefAttr->attr();
 642   if (!aPointAttribute.get()) {
 643     theError = "Error: Bad point selected.";
 644     return false;
 645   }
 646   std::shared_ptr<GeomAPI_Pnt2d> aSelectedPnt =
 647     std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aPointAttribute)->pnt();
 648
 649   // Obtain constraint coincidence for the fillet point.
 650   const std::set<AttributePtr>& aRefsList = aPointAttribute->owner()->data()->refsToMe();
 651   FeaturePtr aConstraintCoincidence;
 652   for(std::set<AttributePtr>::const_iterator anIt = aRefsList.cbegin();
 653       anIt != aRefsList.cend(); ++anIt) {
 654     std::shared_ptr<ModelAPI_Attribute> aAttr = (*anIt);
 655     FeaturePtr aConstrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aAttr->owner());
 656     if (aConstrFeature->getKind() == SketchPlugin_ConstraintCoincidence::ID()) {
 657       if (!isPointPointCoincidence(aConstrFeature))
 658         continue;
 659
 660       AttributeRefAttrPtr anAttrRefA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 661         aConstrFeature->attribute(SketchPlugin_ConstraintCoincidence::ENTITY_A()));
 662       AttributeRefAttrPtr anAttrRefB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 663         aConstrFeature->attribute(SketchPlugin_ConstraintCoincidence::ENTITY_B()));
 664
 665       AttributePtr anAttrA = anAttrRefA->attr();
 666       if(aPointAttribute == anAttrA) {
 667         aConstraintCoincidence = aConstrFeature;
 668         break;
 669       }
 670
 671       AttributePtr anAttrB = anAttrRefB->attr();
 672       if(aPointAttribute == anAttrB) {
 673         aConstraintCoincidence = aConstrFeature;
 674         break;
 675       }
 676     }
 677   }
 678
 679   if(!aConstraintCoincidence.get()) {
 680     theError = "Error: one of the selected point does not have coincidence.";
 681     return false;
 682   }
 683
 684   // Get coincides from constraint.
 685   std::set<FeaturePtr> aCoinsides;
 686   SketchPlugin_Tools::findCoincidences(aConstraintCoincidence,
 687                                         SketchPlugin_ConstraintCoincidence::ENTITY_A(),
 688                                         aCoinsides,
 689                                         true);
 690   SketchPlugin_Tools::findCoincidences(aConstraintCoincidence,
 691                                         SketchPlugin_ConstraintCoincidence::ENTITY_B(),
 692                                         aCoinsides,
 693                                         true);
 694
 695   // Remove points and external lines from set of coincides.
 696   std::set<FeaturePtr> aNewSetOfCoincides;
 697   for(std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 698       anIt != aCoinsides.end(); ++anIt) {
 699     std::shared_ptr<SketchPlugin_SketchEntity> aSketchEntity =
 700       std::dynamic_pointer_cast<SketchPlugin_SketchEntity>(*anIt);
 701     if(aSketchEntity.get() && (aSketchEntity->isCopy() || aSketchEntity->isExternal())) {
 702       continue;
 703     }
 704     if((*anIt)->getKind() != SketchPlugin_Line::ID() &&
 705         (*anIt)->getKind() != SketchPlugin_Arc::ID()) {
 706           continue;
 707     }
 708     if((*anIt)->getKind() == SketchPlugin_Arc::ID()) {
 709       AttributePtr anArcCenter = (*anIt)->attribute(SketchPlugin_Arc::CENTER_ID());
 710       std::shared_ptr<GeomAPI_Pnt2d> anArcCenterPnt =
 711         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anArcCenter)->pnt();
 712       double aDistSelectedArcCenter = aSelectedPnt->distance(anArcCenterPnt);
 713       if(aDistSelectedArcCenter < tolerance) {
 714         continue;
 715       }
 716     }
 717     aNewSetOfCoincides.insert(*anIt);
 718   }
 719   aCoinsides = aNewSetOfCoincides;
 720
 721   // If we still have more than two coincides remove auxilary entities from set of coincides.
 722   if(aCoinsides.size() > 2) {
 723     aNewSetOfCoincides.clear();
 724     for(std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 725         anIt != aCoinsides.end(); ++anIt) {
 726       if(!(*anIt)->boolean(SketchPlugin_SketchEntity::AUXILIARY_ID())->value()) {
 727         aNewSetOfCoincides.insert(*anIt);
 728       }
 729     }
 730     aCoinsides = aNewSetOfCoincides;
 731   }
 732
 733   if(aCoinsides.size() != 2) {
 734     theError = "Error: One of the selected points does not have two suitable edges for fillet.";
 735     return false;
 736   }
 737
 738   // Check that selected edges don't have tangent constraint.
 739   std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 740   FeaturePtr aFirstFeature = *anIt++;
 741   FeaturePtr aSecondFeature = *anIt;
 742   const std::set<AttributePtr>& aFirstFeatureRefsList = aFirstFeature->data()->refsToMe();
 743   if(hasSameTangentFeature(aFirstFeatureRefsList, aSecondFeature)) {
 744     theError = "Error: Edges in selected point has tangent constraint.";
 745     return false;
 746   }
 747
 748   std::list<ResultPtr> aFirstResults = aFirstFeature->results();
 749   for(std::list<ResultPtr>::iterator aResIt = aFirstResults.begin();
 750       aResIt != aFirstResults.end(); ++aResIt) {
 751     ResultPtr aRes = *aResIt;
 752     const std::set<AttributePtr>& aResRefsList = aRes->data()->refsToMe();
 753     if(hasSameTangentFeature(aResRefsList, aSecondFeature)) {
 754       theError = "Error: Edges in selected point has tangent constraint.";
 755       return false;
 756     }
 757   }
 758
 759   // Check the features are not tangent
 760   std::shared_ptr<GeomAPI_Shape> aFirstShape = aFirstFeature->lastResult()->shape();
 761   std::shared_ptr<GeomAPI_Shape> aSecondShape = aSecondFeature->lastResult()->shape();
 762   if (!aFirstShape || !aFirstShape->isEdge() ||
 763       !aSecondShape || !aSecondShape->isEdge()) {
 764     theError = "Error: At least on of the features is not an edge";
 765     return false;
 766   }
 767
 768   std::shared_ptr<GeomAPI_Edge> anEdge1 = std::dynamic_pointer_cast<GeomAPI_Edge>(aFirstShape);
 769   std::shared_ptr<GeomAPI_Edge> anEdge2 = std::dynamic_pointer_cast<GeomAPI_Edge>(aSecondShape);
 770
 771   static const double TOL = 1.e-7;
 772   if (anEdge1->isLine() && anEdge2->isLine()) {
 773     // Check that lines not collinear
 774     std::shared_ptr<GeomAPI_Dir> aDir1 = anEdge1->line()->direction();
 775     std::shared_ptr<GeomAPI_Dir> aDir2 = anEdge2->line()->direction();
 776     double aCross = aDir1->cross(aDir2)->squareModulus();
 777     if (aCross < TOL * TOL)
 778       return false;
 779   } else if (anEdge1->isArc() && anEdge2->isArc()) {
 780     // check the circles are not tangent
 781     std::shared_ptr<GeomAPI_Circ> aCirc1 = anEdge1->circle();
 782     std::shared_ptr<GeomAPI_Circ> aCirc2 = anEdge2->circle();
 783     double aDistCC = aCirc1->center()->distance(aCirc2->center());
 784     double aRadSum = aCirc1->radius() + aCirc2->radius();
 785     double aRadDiff = fabs(aCirc1->radius() - aCirc2->radius());
 786     if (fabs(aDistCC - aRadSum) < TOL || fabs(aDistCC - aRadDiff) < TOL)
 787       return false;
 788   } else {
 789     // check whether line and arc are tangent
 790     std::shared_ptr<GeomAPI_Circ> aCirc;
 791     std::shared_ptr<GeomAPI_Lin> aLine;
 792     if (anEdge1->isLine()) {
 793       aLine = anEdge1->line();
 794       aCirc = anEdge2->circle();
 795     } else {
 796       aCirc = anEdge1->circle();
 797       aLine = anEdge2->line();
 798     }
 799
 800     double aDistCL = aLine->distance(aCirc->center());
 801     if (fabs(aDistCL - aCirc->radius()) < TOL)
 802       return false;
 803   }
 804
 805   return true;
 806 }
 807
 808 bool SketchPlugin_MiddlePointAttrValidator::isValid(const AttributePtr& theAttribute,
 809                                                     const std::list<std::string>& theArguments,
 810                                                     Events_InfoMessage& theError) const
 811 {
 812   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 813     theError = "The attribute with the %1 type is not processed";
 814     theError.arg(theAttribute->attributeType());
 815     return false;
 816   }
 817
 818   // there is a check whether the feature contains a point and a linear edge or two point values
 819   std::string aParamA = theArguments.front();
 820
 821   FeaturePtr anAttributeFeature =
 822     std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 823   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 824   AttributeRefAttrPtr anOtherAttr = anAttributeFeature->data()->refattr(aParamA);
 825
 826   AttributeRefAttrPtr aRefAttrs[2] = {aRefAttr, anOtherAttr};
 827   int aNbPoints = 0;
 828   int aNbLines = 0;
 829   for (int i = 0; i < 2; ++i) {
 830     if (!aRefAttrs[i]->isObject())
 831       ++aNbPoints;
 832     else {
 833       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrs[i]->object());
 834       if (!aFeature) {
 835         if (aNbPoints + aNbLines != 0)
 836           return true;
 837         else continue;
 838       }
 839
 840       if (aFeature->getKind() == SketchPlugin_Point::ID())
 841         ++aNbPoints;
 842       else if (aFeature->getKind() == SketchPlugin_Line::ID() ||
 843                aFeature->getKind() == SketchPlugin_Arc::ID() ||
 844                aFeature->getKind() == SketchPlugin_EllipticArc::ID())
 845         ++aNbLines;
 846     }
 847   }
 848
 849   if (aNbPoints != 1 || aNbLines != 1) {
 850     theError = "Middle point constraint allows points and lines only";
 851     return false;
 852   }
 853   return true;
 854 }
 855
 856 bool SketchPlugin_ArcTangentPointValidator::isValid(const AttributePtr& theAttribute,
 857                                                     const std::list<std::string>& /*theArguments*/,
 858                                                     Events_InfoMessage& theError) const
 859 {
 860   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 861     theError = "The attribute with the %1 type is not processed";
 862     theError.arg(theAttribute->attributeType());
 863     return false;
 864   }
 865   FeaturePtr anOwner = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 866   AttributeStringPtr anArcTypeAttr = anOwner->string(SketchPlugin_MacroArc::ARC_TYPE());
 867   if (anArcTypeAttr && anArcTypeAttr->value() != SketchPlugin_MacroArc::ARC_TYPE_BY_TANGENT_EDGE())
 868     return true; // not applicable for non-tangent arcs
 869
 870   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 871   AttributePtr anAttr = aRefAttr->attr();
 872   if (!anAttr) {
 873     theError = "The attribute %1 should be a point";
 874     theError.arg(theAttribute->id());
 875     return false;
 876   }
 877
 878   FeaturePtr anAttrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(anAttr->owner());
 879   const std::string& aFeatureType = anAttrFeature->getKind();
 880   if (aFeatureType == SketchPlugin_Arc::ID()) {
 881     // selected point should not be a center of arc
 882     const std::string& aPntId = anAttr->id();
 883     if (aPntId != SketchPlugin_Arc::START_ID() && aPntId != SketchPlugin_Arc::END_ID()) {
 884       theError = "The attribute %1 is not supported";
 885       theError.arg(aPntId);
 886       return false;
 887     }
 888   }
 889   else if (aFeatureType == SketchPlugin_Line::ID()) {
 890     // selected point should be bound point of line
 891     const std::string& aPntId = anAttr->id();
 892     if (aPntId != SketchPlugin_Line::START_ID() && aPntId != SketchPlugin_Line::END_ID()) {
 893       theError = "The attribute %1 is not supported";
 894       theError.arg(aPntId);
 895       return false;
 896     }
 897   }
 898   else {
 899     theError = "Unable to build tangent arc on %1";
 900     theError.arg(anAttrFeature->getKind());
 901     return false;
 902   }
 903
 904   return true;
 905 }
 906
 907 bool SketchPlugin_ArcTransversalPointValidator::isValid(
 908     const AttributePtr& theAttribute,
 909     const std::list<std::string>& /*theArguments*/,
 910     Events_InfoMessage& theError) const
 911 {
 912   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 913     theError = "The attribute with the %1 type is not processed";
 914     theError.arg(theAttribute->attributeType());
 915     return false;
 916   }
 917   FeaturePtr anOwner = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 918   AttributeStringPtr anArcTypeAttr = anOwner->string(SketchPlugin_MacroArc::ARC_TYPE());
 919   if (anArcTypeAttr &&
 920       anArcTypeAttr->value() != SketchPlugin_MacroArc::ARC_TYPE_BY_TRANSVERSAL_LINE())
 921     return true; // not applicable for non-transversal arcs
 922
 923   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 924   AttributePtr anAttr = aRefAttr->attr();
 925   if (!anAttr) {
 926     theError = "The attribute %1 should be a point";
 927     theError.arg(theAttribute->id());
 928     return false;
 929   }
 930
 931   FeaturePtr anAttrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(anAttr->owner());
 932   const std::string& aFeatureType = anAttrFeature->getKind();
 933   if (aFeatureType == SketchPlugin_Line::ID()) {
 934     // selected point should be bound point of line
 935     const std::string& aPntId = anAttr->id();
 936     if (aPntId != SketchPlugin_Line::START_ID() && aPntId != SketchPlugin_Line::END_ID()) {
 937       theError = "The attribute %1 is not supported";
 938       theError.arg(aPntId);
 939       return false;
 940     }
 941   }
 942   else {
 943     theError = "Unable to build perpendicular arc on %1";
 944     theError.arg(anAttrFeature->getKind());
 945     return false;
 946   }
 947
 948   return true;
 949 }
 950
 951 bool SketchPlugin_IntersectionValidator::isValid(const AttributePtr& theAttribute,
 952                                                  const std::list<std::string>& theArguments,
 953                                                  Events_InfoMessage& theError) const
 954 {
 955   if (theAttribute->attributeType() != ModelAPI_AttributeSelection::typeId()) {
 956     theError = "The attribute with the %1 type is not processed";
 957     theError.arg(theAttribute->attributeType());
 958     return false;
 959   }
 960   AttributeSelectionPtr anExternalAttr =
 961       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(theAttribute);
 962   std::shared_ptr<GeomAPI_Edge> anEdge;
 963   if (anExternalAttr && anExternalAttr->value() && anExternalAttr->value()->isEdge()) {
 964     anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(anExternalAttr->value()));
 965   } else if(anExternalAttr->context() && anExternalAttr->context()->shape() &&
 966             anExternalAttr->context()->shape()->isEdge()) {
 967     anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(anExternalAttr->context()->shape()));
 968   }
 969
 970   if (!anEdge) {
 971     theError = "The attribute %1 should be an edge";
 972     theError.arg(theAttribute->id());
 973     return false;
 974   }
 975
 976   // find a sketch
 977   std::shared_ptr<SketchPlugin_Sketch> aSketch;
 978   std::set<AttributePtr> aRefs = anExternalAttr->owner()->data()->refsToMe();
 979   std::set<AttributePtr>::const_iterator anIt = aRefs.begin();
 980   for (; anIt != aRefs.end(); ++anIt) {
 981     CompositeFeaturePtr aComp =
 982         std::dynamic_pointer_cast<ModelAPI_CompositeFeature>((*anIt)->owner());
 983     if (aComp && aComp->getKind() == SketchPlugin_Sketch::ID()) {
 984       aSketch = std::dynamic_pointer_cast<SketchPlugin_Sketch>(aComp);
 985       break;
 986     }
 987   }
 988   if (!aSketch) {
 989     theError = "There is no sketch referring to the current feature";
 990     return false;
 991   }
 992
 993   // check the edge is intersected with sketch plane
 994   std::shared_ptr<GeomAPI_Pln> aPlane = aSketch->plane();
 995
 996   std::list<GeomPointPtr> anIntersectionsPoints;
 997   anEdge->intersectWithPlane(aPlane, anIntersectionsPoints);
 998   if (anIntersectionsPoints.empty()) {
 999     theError = "The edge is not intersected with sketch plane";
1000     return false;
1001   }
1002   return true;
1003 }
1004
1005 bool SketchPlugin_SplitValidator::isValid(const AttributePtr& theAttribute,
1006                                           const std::list<std::string>& theArguments,
1007                                           Events_InfoMessage& theError) const
1008 {
1009   bool aValid = false;
1010
1011   if (theAttribute->attributeType() != ModelAPI_AttributeReference::typeId()) {
1012     theError = "The attribute with the %1 type is not processed";
1013     theError.arg(theAttribute->attributeType());
1014     return aValid;
1015   }
1016   AttributeReferencePtr aFeatureAttr =
1017             std::dynamic_pointer_cast<ModelAPI_AttributeReference>(theAttribute);
1018   std::shared_ptr<SketchPlugin_Feature> aSplitFeature =
1019     std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
1020
1021   ObjectPtr anAttrObject = aFeatureAttr->value();
1022   if (!anAttrObject) {
1023     AttributePtr aPreviewAttr = aSplitFeature->attribute(SketchPlugin_Trim::PREVIEW_OBJECT());
1024     aFeatureAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(aPreviewAttr);
1025     anAttrObject = aFeatureAttr->value();
1026   }
1027
1028   FeaturePtr anAttrFeature = ModelAPI_Feature::feature(anAttrObject);
1029   if (!anAttrFeature)
1030     return aValid;
1031
1032   // B-splines are not supported by the Split yet
1033   if (anAttrFeature->getKind() == SketchPlugin_BSpline::ID() ||
1034       anAttrFeature->getKind() == SketchPlugin_BSplinePeriodic::ID()) {
1035     theError = "Not supported";
1036     return false;
1037   }
1038
1039   std::set<ResultPtr> anEdgeShapes;
1040   ModelGeomAlgo_Shape::shapesOfType(anAttrFeature, GeomAPI_Shape::EDGE, anEdgeShapes);
1041   if (anEdgeShapes.empty() || anEdgeShapes.size() > 1 /*there case has not existed yet*/)
1042     return aValid;
1043
1044   // coincidences to the feature
1045   std::set<std::shared_ptr<GeomDataAPI_Point2D> > aRefAttributes;
1046   ModelGeomAlgo_Point2D::getPointsOfReference(anAttrFeature,
1047                       SketchPlugin_ConstraintCoincidence::ID(),
1048                       aRefAttributes, SketchPlugin_Point::ID(), SketchPlugin_Point::COORD_ID());
1049
1050   GeomShapePtr anAttrShape = (*anEdgeShapes.begin())->shape();
1051   std::shared_ptr<SketchPlugin_Feature> aSFeature =
1052                                 std::dynamic_pointer_cast<SketchPlugin_Feature>(anAttrFeature);
1053   if (!aSFeature || aSFeature->isCopy())
1054     return false;
1055   SketchPlugin_Sketch* aSketch = aSFeature->sketch();
1056
1057   std::shared_ptr<ModelAPI_Data> aData = aSketch->data();
1058   std::shared_ptr<GeomDataAPI_Point> aC = std::dynamic_pointer_cast<GeomDataAPI_Point>(
1059       aData->attribute(SketchPlugin_Sketch::ORIGIN_ID()));
1060   std::shared_ptr<GeomDataAPI_Dir> aX = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
1061       aData->attribute(SketchPlugin_Sketch::DIRX_ID()));
1062   std::shared_ptr<GeomDataAPI_Dir> aNorm = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
1063       aData->attribute(SketchPlugin_Sketch::NORM_ID()));
1064   std::shared_ptr<GeomAPI_Dir> aDirY(new GeomAPI_Dir(aNorm->dir()->cross(aX->dir())));
1065
1066   typedef std::map<std::shared_ptr<GeomAPI_Pnt>,
1067                     std::pair<std::list<std::shared_ptr<GeomDataAPI_Point2D> >,
1068                               std::list<std::shared_ptr<ModelAPI_Object> > > > PointToRefsMap;
1069   PointToRefsMap aPointsInfo;
1070
1071   ModelGeomAlgo_Point2D::getPointsInsideShape(anAttrShape, aRefAttributes, aC->pnt(),
1072                                               aX->dir(), aDirY, aPointsInfo);
1073   int aCoincidentToFeature = (int)aPointsInfo.size();
1074   if (anAttrFeature->getKind() == SketchPlugin_Circle::ID() ||
1075       anAttrFeature->getKind() == SketchPlugin_Ellipse::ID())
1076     aValid = aCoincidentToFeature >= 2;
1077   else
1078     aValid = aCoincidentToFeature >= 1;
1079
1080   return aValid;
1081 }
1082
1083 bool SketchPlugin_TrimValidator::isValid(const AttributePtr& theAttribute,
1084                                          const std::list<std::string>& theArguments,
1085                                          Events_InfoMessage& theError) const
1086 {
1087   bool aValid = false;
1088
1089   if (theAttribute->attributeType() != ModelAPI_AttributeReference::typeId()) {
1090     theError = "The attribute with the %1 type is not processed";
1091     theError.arg(theAttribute->attributeType());
1092     return aValid;
1093   }
1094   AttributeReferencePtr aBaseObjectAttr =
1095             std::dynamic_pointer_cast<ModelAPI_AttributeReference>(theAttribute);
1096
1097   std::shared_ptr<SketchPlugin_Feature> aTrimFeature =
1098                  std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
1099
1100   ObjectPtr aBaseObject = aBaseObjectAttr->value();
1101   if (!aBaseObject) {
1102     AttributePtr aPreviewAttr = aTrimFeature->attribute(SketchPlugin_Trim::PREVIEW_OBJECT());
1103     aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(aPreviewAttr);
1104     aBaseObject = aBaseObjectAttr->value();
1105   }
1106
1107   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObject);
1108   if (!aBaseFeature)
1109     return aValid;
1110
1111   std::shared_ptr<SketchPlugin_Feature> aSketchFeature =
1112                                  std::dynamic_pointer_cast<SketchPlugin_Feature>(aBaseFeature);
1113   if (!aSketchFeature.get() || aSketchFeature->isCopy())
1114     return aValid;
1115
1116   // B-splines are not supported by the Trim yet
1117   if (aBaseFeature->getKind() == SketchPlugin_BSpline::ID() ||
1118       aBaseFeature->getKind() == SketchPlugin_BSplinePeriodic::ID()) {
1119     theError = "Not supported";
1120     return false;
1121   }
1122
1123   // point on feature
1124   AttributePoint2DPtr aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1125                        aTrimFeature->data()->attribute(SketchPlugin_Trim::PREVIEW_POINT()));
1126
1127   SketchPlugin_Sketch* aSketch = aTrimFeature->sketch();
1128
1129   std::shared_ptr<GeomAPI_Pnt2d> anAttributePnt2d = aPoint->pnt();
1130   std::shared_ptr<GeomAPI_Pnt> anAttributePnt = aSketch->to3D(anAttributePnt2d->x(),
1131                                                               anAttributePnt2d->y());
1132
1133   std::map<ObjectPtr, std::set<GeomShapePtr> > aCashedShapes;
1134   std::map<ObjectPtr, std::map<std::shared_ptr<GeomAPI_Pnt>,
1135            std::pair<std::list<std::shared_ptr<GeomDataAPI_Point2D> >,
1136                      std::list<std::shared_ptr<ModelAPI_Object> > > > > anObjectToPoints;
1137   SketchPlugin_SegmentationTools::fillObjectShapes(
1138       aTrimFeature.get(), aBaseObject, aCashedShapes, anObjectToPoints);
1139   const std::set<GeomShapePtr>& aShapes = aCashedShapes[aBaseObject];
1140
1141   return aShapes.size() > 1;
1142 }
1143
1144 bool SketchPlugin_ProjectionValidator::isValid(const AttributePtr& theAttribute,
1145                                                const std::list<std::string>& theArguments,
1146                                                Events_InfoMessage& theError) const
1147 {
1148   if (theAttribute->attributeType() != ModelAPI_AttributeSelection::typeId()) {
1149     theError = "The attribute with the %1 type is not processed";
1150     theError.arg(theAttribute->attributeType());
1151     return false;
1152   }
1153
1154   AttributeSelectionPtr aFeatureAttr =
1155       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(theAttribute);
1156   std::shared_ptr<GeomAPI_Edge> anEdge;
1157   std::shared_ptr<SketchPlugin_Feature> aSketchFeature;
1158   if (aFeatureAttr.get()) {
1159     GeomShapePtr aVal = aFeatureAttr->value();
1160     ResultPtr aRes = aFeatureAttr->context();
1161     if (aVal && aVal->isVertex())
1162       return true; // vertex is always could be projected
1163     if (aVal && aVal->isEdge()) {
1164       anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aFeatureAttr->value()));
1165     } else if(aRes && aRes->shape()) {
1166       if (aRes->shape()->isVertex())
1167         return true; // vertex is always could be projected
1168       else if (aRes->shape()->isEdge())
1169         anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aFeatureAttr->context()->shape()));
1170     }
1171
1172     // try to convert result to sketch feature
1173     if (aRes) {
1174       aSketchFeature =
1175         std::dynamic_pointer_cast<SketchPlugin_Feature>(ModelAPI_Feature::feature(aRes));
1176     }
1177   }
1178   if (!anEdge) {
1179     theError = "The attribute %1 should be an edge or vertex";
1180     theError.arg(theAttribute->id());
1181     return false;
1182   }
1183
1184   // find a sketch
1185   std::shared_ptr<SketchPlugin_Sketch> aSketch;
1186   std::set<AttributePtr> aRefs = theAttribute->owner()->data()->refsToMe();
1187   std::set<AttributePtr>::const_iterator anIt = aRefs.begin();
1188   for (; anIt != aRefs.end(); ++anIt) {
1189     CompositeFeaturePtr aComp =
1190         std::dynamic_pointer_cast<ModelAPI_CompositeFeature>((*anIt)->owner());
1191     if (aComp && aComp->getKind() == SketchPlugin_Sketch::ID()) {
1192       aSketch = std::dynamic_pointer_cast<SketchPlugin_Sketch>(aComp);
1193       break;
1194     }
1195   }
1196   if (!aSketch) {
1197     theError = "There is no sketch referring to the current feature";
1198     return false;
1199   }
1200   if (aSketchFeature && aSketch.get() == aSketchFeature->sketch()) {
1201     theError = "Unable to project feature from the same sketch";
1202     return false;
1203   }
1204
1205   std::shared_ptr<GeomAPI_Pln> aPlane = aSketch->plane();
1206   std::shared_ptr<GeomAPI_Dir> aNormal = aPlane->direction();
1207   std::shared_ptr<GeomAPI_Pnt> anOrigin = aPlane->location();
1208
1209   bool aValid = true;
1210   if (anEdge->isLine()) {
1211     std::shared_ptr<GeomAPI_Lin> aLine = anEdge->line();
1212     std::shared_ptr<GeomAPI_Dir> aLineDir = aLine->direction();
1213     double aDot = fabs(aNormal->dot(aLineDir));
1214     aValid = fabs(aDot - 1.0) >= tolerance * tolerance;
1215     if (!aValid)
1216       theError = "Error: Line is orthogonal to the sketch plane.";
1217   }
1218   else if (anEdge->isCircle() || anEdge->isArc()) {
1219     std::shared_ptr<GeomAPI_Circ> aCircle = anEdge->circle();
1220     std::shared_ptr<GeomAPI_Dir> aCircNormal = aCircle->normal();
1221     double aDot = fabs(aNormal->dot(aCircNormal));
1222     aValid = aDot >= tolerance * tolerance;
1223     if (!aValid)
1224       theError.arg(anEdge->isCircle() ? "Error: Circle is orthogonal to the sketch plane."
1225                                       : "Error: Arc is orthogonal to the sketch plane.");
1226   }
1227   else if (anEdge->isEllipse()) {
1228     std::shared_ptr<GeomAPI_Ellipse> anEllipse = anEdge->ellipse();
1229     std::shared_ptr<GeomAPI_Dir> anEllipseNormal = anEllipse->normal();
1230     double aDot = fabs(aNormal->dot(anEllipseNormal));
1231     aValid = fabs(aDot - 1.0) <= tolerance * tolerance;
1232     if (!aValid)
1233       theError.arg(anEdge->isClosed() ? "Error: Ellipse is orthogonal to the sketch plane."
1234                                       : "Error: Elliptic Arc is orthogonal to the sketch plane.");
1235   }
1236
1237   return aValid;
1238 }
1239
1240
1241 static std::set<FeaturePtr> common(const std::set<FeaturePtr>& theSet1,
1242                                    const std::set<FeaturePtr>& theSet2)
1243 {
1244   std::set<FeaturePtr> aCommon;
1245   if (theSet1.empty() || theSet2.empty())
1246     return aCommon;
1247
1248   std::set<FeaturePtr>::const_iterator anIt2 = theSet2.begin();
1249   for (; anIt2 != theSet2.end(); ++anIt2)
1250     if (theSet1.find(*anIt2) != theSet1.end())
1251       aCommon.insert(*anIt2);
1252   return aCommon;
1253 }
1254
1255 bool SketchPlugin_DifferentReferenceValidator::isValid(
1256     const AttributePtr& theAttribute,
1257     const std::list<std::string>& theArguments,
1258     Events_InfoMessage& theError) const
1259 {
1260   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1261
1262   int aNbFeaturesReferred = 0;
1263   int aNbAttributesReferred = 0;
1264   std::set<FeaturePtr> aCommonReferredFeatures;
1265
1266   // find all features referred by attributes listed in theArguments
1267   std::list<std::string>::const_iterator anArgIt = theArguments.begin();
1268   for (; anArgIt != theArguments.end(); ++anArgIt) {
1269     AttributeRefAttrPtr aRefAttr = anOwner->refattr(*anArgIt);
1270     if (!aRefAttr)
1271       continue;
1272
1273     std::set<FeaturePtr> aCoincidentFeatures;
1274     if (aRefAttr->isObject()) {
1275       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->object());
1276       if (aFeature) {
1277         aCoincidentFeatures.insert(aFeature);
1278         aNbFeaturesReferred += 1;
1279       }
1280     } else {
1281       AttributePoint2DPtr aPoint =
1282           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
1283       if (aPoint) {
1284         aCoincidentFeatures = SketchPlugin_Tools::findFeaturesCoincidentToPoint(aPoint);
1285         aNbAttributesReferred += 1;
1286       }
1287     }
1288
1289     if (aCommonReferredFeatures.empty())
1290       aCommonReferredFeatures = aCoincidentFeatures;
1291     else
1292       aCommonReferredFeatures = common(aCommonReferredFeatures, aCoincidentFeatures);
1293
1294     if (aCommonReferredFeatures.empty())
1295       return true;
1296   }
1297
1298   bool isOk = aNbFeaturesReferred < 1;
1299   if (aNbFeaturesReferred == 1) {
1300     if (aCommonReferredFeatures.size() == 1) {
1301       FeaturePtr aFeature = *aCommonReferredFeatures.begin();
1302       isOk = aNbAttributesReferred <= 1 ||
1303              aFeature->getKind() == SketchPlugin_Circle::ID() ||
1304              aFeature->getKind() == SketchPlugin_Arc::ID();
1305     } else
1306       isOk = false;
1307   }
1308
1309   if (!isOk)
1310     theError = "Attributes are referred to the same feature";
1311   return isOk;
1312 }
1313
1314 bool SketchPlugin_DifferentPointReferenceValidator::isValid(
1315     const AttributePtr& theAttribute,
1316     const std::list<std::string>& theArguments,
1317     Events_InfoMessage& theError) const
1318 {
1319   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1320   std::set<AttributePoint2DPtr> aReferredCoincidentPoints;
1321
1322   // find all points referred by attributes listed in theArguments
1323   bool hasRefsToPoints = false;
1324   std::list<std::string>::const_iterator anArgIt = theArguments.begin();
1325   for (; anArgIt != theArguments.end(); ++anArgIt) {
1326     AttributeRefAttrPtr aRefAttr = anOwner->refattr(*anArgIt);
1327     if (!aRefAttr)
1328       continue;
1329
1330     if (!aRefAttr->isObject()) {
1331       AttributePoint2DPtr aPoint =
1332           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
1333       if (aReferredCoincidentPoints.empty())
1334         aReferredCoincidentPoints = SketchPlugin_Tools::findPointsCoincidentToPoint(aPoint);
1335       else if (aReferredCoincidentPoints.find(aPoint) == aReferredCoincidentPoints.end())
1336         return true; // non-coincident point has been found
1337       else
1338         hasRefsToPoints = true;
1339     }
1340   }
1341
1342   if (hasRefsToPoints)
1343     theError = "Attributes are referred to the same point";
1344   return !hasRefsToPoints;
1345 }
1346
1347 bool SketchPlugin_CirclePassedPointValidator::isValid(
1348     const AttributePtr& theAttribute,
1349     const std::list<std::string>&,
1350     Events_InfoMessage& theError) const
1351 {
1352   static const std::string aErrorMessage(
1353       "Passed point refers to the same feature as a center point");
1354
1355   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1356
1357   AttributeRefAttrPtr aCenterRef =
1358       anOwner->refattr(SketchPlugin_MacroCircle::CENTER_POINT_REF_ID());
1359   AttributeRefAttrPtr aPassedRef =
1360       anOwner->refattr(SketchPlugin_MacroCircle::PASSED_POINT_REF_ID());
1361
1362   if (!aPassedRef->isObject())
1363     return true;
1364
1365   FeaturePtr aPassedFeature = ModelAPI_Feature::feature(aPassedRef->object());
1366   if (!aPassedFeature)
1367     return true;
1368
1369   if (aCenterRef->isObject()) {
1370     if (aCenterRef->object() == aPassedRef->object()) {
1371       theError = aErrorMessage;
1372       return false;
1373     }
1374   } else {
1375     AttributePoint2DPtr aCenterPoint =
1376         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aCenterRef->attr());
1377     if (aCenterPoint) {
1378       std::set<FeaturePtr> aCoincidentFeatures =
1379           SketchPlugin_Tools::findFeaturesCoincidentToPoint(aCenterPoint);
1380       // check one of coincident features is a feature referred by passed point
1381       std::set<FeaturePtr>::const_iterator anIt = aCoincidentFeatures.begin();
1382       for(; anIt != aCoincidentFeatures.end(); ++anIt)
1383         if (*anIt == aPassedFeature) {
1384           theError = aErrorMessage;
1385           return false;
1386         }
1387     }
1388   }
1389   return true;
1390 }
1391
1392 bool SketchPlugin_ThirdPointValidator::isValid(
1393     const AttributePtr& theAttribute,
1394     const std::list<std::string>& theArguments,
1395     Events_InfoMessage& theError) const
1396 {
1397   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1398   return arePointsNotOnLine(anOwner, theError) &&
1399          arePointsNotSeparated(anOwner, theArguments, theError);
1400 }
1401
1402 static std::shared_ptr<GeomAPI_Pnt2d> toPoint(const FeaturePtr& theMacroCircle,
1403                                               const std::string& thePointAttrName,
1404                                               const std::string& theRefPointAttrName)
1405 {
1406   AttributePoint2DPtr aPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1407       theMacroCircle->attribute(thePointAttrName));
1408   AttributeRefAttrPtr aRefAttr = theMacroCircle->refattr(theRefPointAttrName);
1409
1410   std::shared_ptr<GeomAPI_Pnt2d> aPoint = aPointAttr->pnt();
1411   if (aRefAttr) {
1412     if (aRefAttr->isObject()) {
1413       // project a point onto selected feature
1414       std::shared_ptr<SketchPlugin_Feature> aFeature =
1415           std::dynamic_pointer_cast<SketchPlugin_Feature>(
1416           ModelAPI_Feature::feature(aRefAttr->object()));
1417       if (aFeature) {
1418         SketchPlugin_Sketch* aSketch = aFeature->sketch();
1419         std::shared_ptr<GeomAPI_Edge> anEdge =
1420             std::dynamic_pointer_cast<GeomAPI_Edge>(aFeature->lastResult()->shape());
1421         if (anEdge) {
1422           std::shared_ptr<GeomAPI_Pnt> aPoint3D = aSketch->to3D(aPoint->x(), aPoint->y());
1423           if (anEdge->isLine())
1424             aPoint3D = anEdge->line()->project(aPoint3D);
1425           else if (anEdge->isCircle())
1426             aPoint3D = anEdge->circle()->project(aPoint3D);
1427           if(aPoint3D)
1428             aPoint = aSketch->to2D(aPoint3D);
1429         }
1430       }
1431     } else {
1432       AttributePoint2DPtr anOtherPoint =
1433           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
1434       if (anOtherPoint)
1435         aPoint = anOtherPoint->pnt(); // the reference point is much more precise, use it
1436     }
1437   }
1438
1439   return aPoint;
1440 }
1441
1442 static void threePointsOfFeature(const FeaturePtr& theMacroFeature,
1443                                  std::shared_ptr<GeomAPI_Pnt2d> thePoints[3])
1444 {
1445   if (theMacroFeature->getKind() == SketchPlugin_MacroCircle::ID()) {
1446     thePoints[0] = toPoint(theMacroFeature,
1447           SketchPlugin_MacroCircle::FIRST_POINT_ID(),
1448           SketchPlugin_MacroCircle::FIRST_POINT_REF_ID());
1449     thePoints[1] = toPoint(theMacroFeature,
1450           SketchPlugin_MacroCircle::SECOND_POINT_ID(),
1451           SketchPlugin_MacroCircle::SECOND_POINT_REF_ID());
1452     thePoints[2] = toPoint(theMacroFeature,
1453           SketchPlugin_MacroCircle::THIRD_POINT_ID(),
1454           SketchPlugin_MacroCircle::THIRD_POINT_REF_ID());
1455   } else if (theMacroFeature->getKind() == SketchPlugin_MacroArc::ID()) {
1456     thePoints[0] = toPoint(theMacroFeature,
1457           SketchPlugin_MacroArc::START_POINT_2_ID(),
1458           SketchPlugin_MacroArc::START_POINT_REF_ID());
1459     thePoints[1] = toPoint(theMacroFeature,
1460           SketchPlugin_MacroArc::END_POINT_2_ID(),
1461           SketchPlugin_MacroArc::END_POINT_REF_ID());
1462     thePoints[2] = toPoint(theMacroFeature,
1463           SketchPlugin_MacroArc::PASSED_POINT_ID(),
1464           SketchPlugin_MacroArc::PASSED_POINT_REF_ID());
1465   }
1466 }
1467
1468 static bool isPointsOnLine(const std::shared_ptr<GeomAPI_Pnt2d>& thePoint1,
1469                            const std::shared_ptr<GeomAPI_Pnt2d>& thePoint2,
1470                            const std::shared_ptr<GeomAPI_Pnt2d>& thePoint3)
1471 {
1472   static const double aTolerance = 1.e-7;
1473   if (thePoint1->distance(thePoint2) < aTolerance ||
1474       thePoint1->distance(thePoint3) < aTolerance)
1475     return true;
1476
1477   std::shared_ptr<GeomAPI_Dir2d> aDirP1P2(new GeomAPI_Dir2d(thePoint2->x() - thePoint1->x(),
1478                                                             thePoint2->y() - thePoint1->y()));
1479   std::shared_ptr<GeomAPI_Dir2d> aDirP1P3(new GeomAPI_Dir2d(thePoint3->x() - thePoint1->x(),
1480                                                             thePoint3->y() - thePoint1->y()));
1481   return fabs(aDirP1P2->cross(aDirP1P3)) < aTolerance;
1482 }
1483
1484 static bool isOnSameSide(const std::shared_ptr<GeomAPI_Lin>& theLine,
1485                          const std::shared_ptr<GeomAPI_Pnt>& thePoint1,
1486                          const std::shared_ptr<GeomAPI_Pnt>& thePoint2)
1487 {
1488   static const double aTolerance = 1.e-7;
1489   std::shared_ptr<GeomAPI_Dir> aLineDir = theLine->direction();
1490   std::shared_ptr<GeomAPI_XYZ> aLineLoc = theLine->location()->xyz();
1491
1492   std::shared_ptr<GeomAPI_XYZ> aVec1 = thePoint1->xyz()->decreased(aLineLoc);
1493   // the first point is on the line
1494   if (aVec1->squareModulus() < aTolerance * aTolerance)
1495     return false;
1496   std::shared_ptr<GeomAPI_Dir> aDirP1L(new GeomAPI_Dir(aVec1));
1497   std::shared_ptr<GeomAPI_XYZ> aVec2 = thePoint2->xyz()->decreased(aLineLoc);
1498   // the second point is on the line
1499   if (aVec2->squareModulus() < aTolerance * aTolerance)
1500     return false;
1501   std::shared_ptr<GeomAPI_Dir> aDirP2L(new GeomAPI_Dir(aVec2));
1502
1503   return aLineDir->cross(aDirP1L)->dot(aLineDir->cross(aDirP2L)) > -aTolerance;
1504 }
1505
1506 static bool isOnSameSide(const std::shared_ptr<GeomAPI_Circ>& theCircle,
1507                          const std::shared_ptr<GeomAPI_Pnt>&  thePoint1,
1508                          const std::shared_ptr<GeomAPI_Pnt>&  thePoint2)
1509 {
1510   static const double aTolerance = 1.e-7;
1511   std::shared_ptr<GeomAPI_Pnt> aCenter = theCircle->center();
1512   double aDistP1C = thePoint1->distance(aCenter);
1513   double aDistP2C = thePoint2->distance(aCenter);
1514   return (aDistP1C - theCircle->radius()) * (aDistP2C - theCircle->radius()) > -aTolerance;
1515 }
1516
1517 bool SketchPlugin_ThirdPointValidator::arePointsNotOnLine(
1518     const FeaturePtr& theMacroFeature,
1519     Events_InfoMessage& theError) const
1520 {
1521   static const std::string aErrorPointsOnLine(
1522       "Selected points are on the same line");
1523
1524   std::shared_ptr<GeomAPI_Pnt2d> aPoints[3];
1525   threePointsOfFeature(theMacroFeature, aPoints);
1526
1527   if (isPointsOnLine(aPoints[0], aPoints[1], aPoints[2])) {
1528     theError = aErrorPointsOnLine;
1529     return false;
1530   }
1531   return true;
1532 }
1533
1534 bool SketchPlugin_ThirdPointValidator::arePointsNotSeparated(
1535     const FeaturePtr& theMacroFeature,
1536     const std::list<std::string>& theArguments,
1537     Events_InfoMessage& theError) const
1538 {
1539   static const std::string aErrorPointsApart(
1540       "Selected entity is lying between first two points");
1541
1542   AttributeRefAttrPtr aThirdPointRef = theMacroFeature->refattr(theArguments.front());
1543   FeaturePtr aRefByThird;
1544   if (aThirdPointRef->isObject())
1545     aRefByThird = ModelAPI_Feature::feature(aThirdPointRef->object());
1546   if (!aRefByThird)
1547     return true;
1548
1549   std::shared_ptr<GeomAPI_Pnt2d> aPoints[3];
1550   threePointsOfFeature(theMacroFeature, aPoints);
1551
1552   std::shared_ptr<GeomAPI_Edge> aThirdShape =
1553       std::dynamic_pointer_cast<GeomAPI_Edge>(aRefByThird->lastResult()->shape());
1554   if (!aThirdShape)
1555     return true;
1556
1557   SketchPlugin_Sketch* aSketch =
1558       std::dynamic_pointer_cast<SketchPlugin_Feature>(theMacroFeature)->sketch();
1559   std::shared_ptr<GeomAPI_Pnt> aFirstPnt3D = aSketch->to3D(aPoints[0]->x(), aPoints[0]->y());
1560   std::shared_ptr<GeomAPI_Pnt> aSecondPnt3D = aSketch->to3D(aPoints[1]->x(), aPoints[1]->y());
1561
1562   bool isOk = true;
1563   if (aThirdShape->isLine())
1564     isOk = isOnSameSide(aThirdShape->line(), aFirstPnt3D, aSecondPnt3D);
1565   else if (aThirdShape->isCircle() || aThirdShape->isArc())
1566     isOk = isOnSameSide(aThirdShape->circle(), aFirstPnt3D, aSecondPnt3D);
1567
1568   if (!isOk)
1569     theError = aErrorPointsApart;
1570   return isOk;
1571 }
1572
1573 bool SketchPlugin_ArcEndPointValidator::isValid(
1574     const AttributePtr& theAttribute,
1575     const std::list<std::string>& theArguments,
1576     Events_InfoMessage& theError) const
1577 {
1578   FeaturePtr aFeature = ModelAPI_Feature::feature(theAttribute->owner());
1579   AttributeRefAttrPtr anEndPointRef = aFeature->refattr(theArguments.front());
1580
1581   if(!anEndPointRef.get()) {
1582     return true;
1583   }
1584
1585   ObjectPtr anObject = anEndPointRef->object();
1586   AttributePtr anAttr = anEndPointRef->attr();
1587   if(!anObject.get() && !anAttr.get()) {
1588     return true;
1589   }
1590
1591   if(anEndPointRef->attr().get()) {
1592     return false;
1593   }
1594
1595   ResultPtr aResult = std::dynamic_pointer_cast<ModelAPI_Result>(anObject);
1596   if(aResult.get()) {
1597     GeomShapePtr aShape = aResult->shape();
1598     if(aShape.get() && aShape->isVertex()) {
1599       return false;
1600     }
1601   }
1602
1603   aFeature = ModelAPI_Feature::feature(anObject);
1604   if(aFeature.get()) {
1605     if(aFeature->getKind() == SketchPlugin_Point::ID()) {
1606       return false;
1607     }
1608   }
1609
1610   return true;
1611 }
1612
1613 static GeomShapePtr toInfiniteEdge(const GeomShapePtr theShape)
1614 {
1615   if(!theShape.get()) {
1616     return theShape;
1617   }
1618
1619   if(!theShape->isEdge()) {
1620     return theShape;
1621   }
1622
1623   std::shared_ptr<GeomAPI_Edge> anEdge(new GeomAPI_Edge(theShape));
1624
1625   if(!anEdge.get()) {
1626     return theShape;
1627   }
1628
1629   if(anEdge->isLine()) {
1630     std::shared_ptr<GeomAPI_Lin> aLine = anEdge->line();
1631     GeomShapePtr aShape = GeomAlgoAPI_EdgeBuilder::line(aLine);
1632     return aShape;
1633   }
1634
1635   if(anEdge->isCircle() || anEdge->isArc()) {
1636     std::shared_ptr<GeomAPI_Circ> aCircle = anEdge->circle();
1637     GeomShapePtr aShape = GeomAlgoAPI_EdgeBuilder::lineCircle(aCircle);
1638     return aShape;
1639   }
1640
1641   return theShape;
1642 }
1643
1644 bool SketchPlugin_ArcEndPointIntersectionValidator::isValid(
1645     const AttributePtr& theAttribute,
1646     const std::list<std::string>& theArguments,
1647     Events_InfoMessage& theError) const
1648 {
1649   std::shared_ptr<SketchPlugin_MacroArc> anArcFeature =
1650       std::dynamic_pointer_cast<SketchPlugin_MacroArc>(theAttribute->owner());
1651   AttributeRefAttrPtr anEndPointRef = anArcFeature->refattr(theArguments.front());
1652
1653   if(!anEndPointRef.get()) {
1654     return true;
1655   }
1656
1657   GeomShapePtr anArcShape = toInfiniteEdge(anArcFeature->getArcShape(false));
1658
1659   if(!anArcShape.get() || anArcShape->isNull()) {
1660     return true;
1661   }
1662
1663   ObjectPtr anObject = anEndPointRef->object();
1664   AttributePtr anAttr = anEndPointRef->attr();
1665   if(!anObject.get() && !anAttr.get()) {
1666     return true;
1667   }
1668
1669   ResultPtr aResult = std::dynamic_pointer_cast<ModelAPI_Result>(anObject);
1670   if(aResult.get()) {
1671     GeomShapePtr aShape = aResult->shape();
1672     if (!aShape->isEdge())
1673       return true;
1674     aShape = toInfiniteEdge(aShape);
1675     if(aShape.get() && !aShape->isNull()) {
1676       if(anArcShape->isIntersect(aShape)) {
1677         return true;
1678       }
1679     }
1680   }
1681
1682   FeaturePtr aSelectedFeature = ModelAPI_Feature::feature(anObject);
1683   if(aSelectedFeature.get()) {
1684     std::list<ResultPtr> aResults = aSelectedFeature->results();
1685     for(std::list<ResultPtr>::const_iterator anIt = aResults.cbegin();
1686         anIt != aResults.cend();
1687         ++anIt)
1688     {
1689       GeomShapePtr aShape = (*anIt)->shape();
1690       if (!aShape->isEdge())
1691         return true;
1692       aShape = toInfiniteEdge(aShape);
1693       if(aShape.get() && !aShape->isNull()) {
1694         if(anArcShape->isIntersect(aShape)) {
1695           return true;
1696         }
1697       }
1698     }
1699   }
1700
1701   return false;
1702 }
1703
1704 bool SketchPlugin_HasNoConstraint::isValid(const AttributePtr& theAttribute,
1705                                            const std::list<std::string>& theArguments,
1706                                            Events_InfoMessage& theError) const
1707 {
1708   std::set<std::string> aFeatureKinds;
1709   for (std::list<std::string>::const_iterator anArgIt = theArguments.begin();
1710        anArgIt != theArguments.end(); anArgIt++) {
1711     aFeatureKinds.insert(*anArgIt);
1712   }
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   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
1721                                                                       (theAttribute);
1722   bool isObject = aRefAttr->isObject();
1723   if (!isObject) {
1724     theError = "It uses an empty object";
1725     return false;
1726   }
1727   ObjectPtr anObject = aRefAttr->object();
1728   FeaturePtr aFeature = ModelAPI_Feature::feature(anObject);
1729   if (!aFeature.get()) {
1730     theError = "The feature of the checked attribute is empty";
1731     return false;
1732   }
1733
1734   FeaturePtr aCurrentFeature = ModelAPI_Feature::feature(aRefAttr->owner());
1735
1736   std::set<AttributePtr> aRefsList = anObject->data()->refsToMe();
1737   std::set<AttributePtr>::const_iterator anIt = aRefsList.begin();
1738   for (; anIt != aRefsList.end(); anIt++) {
1739     FeaturePtr aRefFeature = ModelAPI_Feature::feature((*anIt)->owner());
1740     if (aRefFeature.get() && aCurrentFeature != aRefFeature &&
1741         aFeatureKinds.find(aRefFeature->getKind()) != aFeatureKinds.end())
1742       return false; // constraint is found, that means that the check is not valid
1743   }
1744   return true;
1745 }
1746
1747 bool SketchPlugin_ReplicationReferenceValidator::isValid(
1748     const AttributePtr& theAttribute,
1749     const std::list<std::string>& theArguments,
1750     Events_InfoMessage& theError) const
1751 {
1752   AttributeRefAttrPtr aRefAttr =
1753       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
1754   if (!aRefAttr)
1755   {
1756     theError = "Incorrect attribute";
1757     return false;
1758   }
1759
1760   ObjectPtr anOwner;
1761   if (aRefAttr->isObject())
1762     anOwner = aRefAttr->object();
1763   else
1764   {
1765     AttributePtr anAttr = aRefAttr->attr();
1766     anOwner = anAttr->owner();
1767   }
1768   FeaturePtr anAttrOwnerFeature = ModelAPI_Feature::feature(anOwner);
1769   if (!anAttrOwnerFeature)
1770     return true;
1771   AttributeBooleanPtr aCopyAttr = anAttrOwnerFeature->boolean(SketchPlugin_SketchEntity::COPY_ID());
1772   if (!aCopyAttr || !aCopyAttr->value())
1773     return true; // feature is not a copy, thus valid
1774
1775   // check the copy feature is already referred by the "Multi" feature
1776   FeaturePtr aMultiFeature = ModelAPI_Feature::feature(theAttribute->owner());
1777   AttributeRefListPtr aRefList = aMultiFeature->reflist(theArguments.front());
1778   for (int i = 0; i < aRefList->size(); ++i)
1779   {
1780     FeaturePtr aRefOwner = ModelAPI_Feature::feature(aRefList->object(i));
1781     if (aRefOwner == anAttrOwnerFeature)
1782     {
1783       theError = "Attribute refers to the object generated by this feature";
1784       return false;
1785     }
1786   }
1787
1788   return true;
1789 }
1790
1791 bool SketchPlugin_SketchFeatureValidator::isValid(const AttributePtr& theAttribute,
1792                                                   const std::list<std::string>& theArguments,
1793                                                   Events_InfoMessage& theError) const
1794 {
1795   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId() &&
1796       theAttribute->attributeType() != ModelAPI_AttributeReference::typeId()) {
1797     theError = "The attribute with the %1 type is not processed";
1798     theError.arg(theAttribute->attributeType());
1799     return false;
1800   }
1801
1802   // check the attribute refers to a sketch feature
1803   bool isSketchFeature = false;
1804   AttributeRefAttrPtr aRefAttr =
1805       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
1806   if (aRefAttr) {
1807     isSketchFeature = aRefAttr->isObject();
1808     if (isSketchFeature) {
1809       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->object());
1810       isSketchFeature = aFeature.get() != NULL;
1811       if (isSketchFeature) {
1812         std::shared_ptr<SketchPlugin_Feature> aSketchFeature =
1813             std::dynamic_pointer_cast<SketchPlugin_Feature>(aFeature);
1814         isSketchFeature = aSketchFeature.get() != NULL;
1815       }
1816     }
1817   }
1818   else {
1819     AttributeReferencePtr aReference =
1820       std::dynamic_pointer_cast<ModelAPI_AttributeReference>(theAttribute);
1821     if (aReference) {
1822       FeaturePtr aFeature = ModelAPI_Feature::feature(aReference->value());
1823       isSketchFeature = aFeature.get() && aFeature->getKind() == SketchPlugin_Sketch::ID();
1824     }
1825   }
1826
1827   if (!isSketchFeature)
1828     theError = "The object selected is not a sketch feature";
1829   return isSketchFeature;
1830 }
1831
1832 bool SketchPlugin_MultiRotationAngleValidator::isValid(const AttributePtr& theAttribute,
1833                                                        const std::list<std::string>& theArguments,
1834                                                        Events_InfoMessage& theError) const
1835 {
1836   if (theAttribute->attributeType() != ModelAPI_AttributeDouble::typeId()) {
1837     theError = "The attribute with the %1 type is not processed";
1838     theError.arg(theAttribute->attributeType());
1839     return false;
1840   }
1841
1842   AttributeDoublePtr anAngleAttr =
1843     std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(theAttribute);
1844
1845   FeaturePtr aMultiRotation = ModelAPI_Feature::feature(theAttribute->owner());
1846   AttributeStringPtr anAngleType =
1847       aMultiRotation->string(SketchPlugin_MultiRotation::ANGLE_TYPE());
1848   AttributeIntegerPtr aNbCopies =
1849       aMultiRotation->integer(SketchPlugin_MultiRotation::NUMBER_OF_OBJECTS_ID());
1850
1851   if (anAngleType->value() != "FullAngle")
1852   {
1853     double aFullAngleValue = anAngleAttr->value() * (aNbCopies->value() - 1);
1854     if (aFullAngleValue < -1.e-7 || aFullAngleValue > 359.9999999)
1855     {
1856       theError = "Rotation single angle should produce full angle less than 360 degree";
1857       return false;
1858     }
1859   }
1860   else
1861   {
1862     double aFullAngleValue = anAngleAttr->value();
1863     if (aFullAngleValue < -1.e-7 || aFullAngleValue > 360.0000001)
1864     {
1865       theError = "Rotation full angle should be in range [0, 360]";
1866       return false;
1867     }
1868   }
1869
1870   return true;
1871 }
1872
1873 bool SketchPlugin_BSplineValidator::isValid(const AttributePtr& theAttribute,
1874                                             const std::list<std::string>& theArguments,
1875                                             Events_InfoMessage& theError) const
1876 {
1877   AttributePoint2DArrayPtr aPolesArray =
1878       std::dynamic_pointer_cast<GeomDataAPI_Point2DArray>(theAttribute);
1879   if (!aPolesArray)
1880     return false;
1881
1882   if (aPolesArray->size() < 2) {
1883     theError = "Number of B-spline poles should be 2 or more";
1884     return false;
1885   }
1886
1887   return true;
1888 }