src/SketchPlugin/SketchPlugin_Validators.cpp

   1 // Copyright (C) 2014-2019  CEA/DEN, EDF R&D
   2 //
   3 // This library is free software; you can redistribute it and/or
   4 // modify it under the terms of the GNU Lesser General Public
   5 // License as published by the Free Software Foundation; either
   6 // version 2.1 of the License, or (at your option) any later version.
   7 //
   8 // This library is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11 // Lesser General Public License for more details.
  12 //
  13 // You should have received a copy of the GNU Lesser General Public
  14 // License along with this library; if not, write to the Free Software
  15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  16 //
  17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  18 //
  19
  20 #include "SketchPlugin_Validators.h"
  21
  22 #include "SketchPlugin_Arc.h"
  23 #include "SketchPlugin_BSpline.h"
  24 #include "SketchPlugin_BSplinePeriodic.h"
  25 #include "SketchPlugin_Circle.h"
  26 #include "SketchPlugin_ConstraintCoincidence.h"
  27 #include "SketchPlugin_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   SessionPtr aMgr = ModelAPI_Session::get();
 161   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 162
 163   FeaturePtr anAttributeFeature =
 164     std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 165   AttributeRefAttrPtr aRefAttr =
 166     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 167
 168   bool isObject = aRefAttr->isObject();
 169   ObjectPtr anObject = aRefAttr->object();
 170   if (!isObject || !anObject.get()) {
 171     theError = "It uses an empty object";
 172     return false;
 173   }
 174
 175   FeaturePtr aRefFea = ModelAPI_Feature::feature(anObject);
 176
 177   AttributeRefAttrPtr aOtherAttr = anAttributeFeature->data()->refattr(aParamA);
 178   ObjectPtr aOtherObject = aOtherAttr->object();
 179   FeaturePtr aOtherFea = ModelAPI_Feature::feature(aOtherObject);
 180   if (!aOtherFea)
 181     return true;
 182
 183   if (aRefFea->getKind() == SketchPlugin_Line::ID() &&
 184       aOtherFea->getKind() == SketchPlugin_Line::ID()) {
 185     theError = "Two segments cannot be tangent";
 186     return false;
 187   }
 188   else if (isSpline(aRefFea) && isSpline(aOtherFea)) {
 189     theError = "Two B-splines cannot be tangent";
 190     return false;
 191   }
 192
 193   bool isValid = true;
 194   bool hasSpline = isSpline(aRefFea);
 195   if (!hasSpline && isSpline(aOtherFea)) {
 196     hasSpline = true;
 197     std::swap(aRefFea, aOtherFea);
 198   }
 199   if (hasSpline) {
 200     auto isApplicableCoincidence = [](FeaturePtr theFeature, const std::string& theAttrName) {
 201       AttributeRefAttrPtr aRefAttr = theFeature->refattr(theAttrName);
 202       if (aRefAttr->isObject())
 203         return false;
 204       AttributePtr anAttr = aRefAttr->attr();
 205       FeaturePtr anOwner = ModelAPI_Feature::feature(anAttr->owner());
 206       AttributePoint2DPtr aPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anAttr);
 207       if (aPointAttr) {
 208         return anOwner->getKind() == SketchPlugin_BSpline::ID() &&
 209               (aPointAttr->id() == SketchPlugin_BSpline::START_ID() ||
 210                aPointAttr->id() == SketchPlugin_BSpline::END_ID());
 211       }
 212
 213       AttributePoint2DArrayPtr aPntArray =
 214           std::dynamic_pointer_cast<GeomDataAPI_Point2DArray>(anAttr);
 215       if (aPntArray) {
 216         // check index of the pole
 217         AttributeIntegerPtr anIndex = theAttrName == SketchPlugin_Constraint::ENTITY_A() ?
 218             theFeature->integer(SketchPlugin_ConstraintCoincidenceInternal::INDEX_ENTITY_A()) :
 219             theFeature->integer(SketchPlugin_ConstraintCoincidenceInternal::INDEX_ENTITY_B());
 220         return anIndex && (anIndex->value() == 0 || anIndex->value() == aPntArray->size() - 1);
 221       }
 222       return false;
 223     };
 224
 225     isValid = false;
 226     AttributePoint2DArrayPtr aBSplinePoles = std::dynamic_pointer_cast<GeomDataAPI_Point2DArray>(
 227         aRefFea->attribute(SketchPlugin_BSplineBase::POLES_ID()));
 228     // additional check the B-spline edge and the other edge have a coincident boundary point
 229     std::set<FeaturePtr> aCoincidences = SketchPlugin_Tools::findCoincidentConstraints(aRefFea);
 230     for (std::set<FeaturePtr>::iterator anIt = aCoincidences.begin();
 231          anIt != aCoincidences.end() && !isValid; ++anIt) {
 232       std::set<FeaturePtr> aCoinc;
 233       if (isApplicableCoincidence(*anIt, SketchPlugin_Constraint::ENTITY_A()))
 234         SketchPlugin_Tools::findCoincidences(*anIt, SketchPlugin_Constraint::ENTITY_B(),
 235                                              aCoinc, true);
 236       else if (isApplicableCoincidence(*anIt, SketchPlugin_Constraint::ENTITY_B()))
 237         SketchPlugin_Tools::findCoincidences(*anIt, SketchPlugin_Constraint::ENTITY_A(),
 238                                              aCoinc, true);
 239
 240       isValid = aCoinc.find(aOtherFea) != aCoinc.end();
 241     }
 242   }
 243
 244   return isValid;
 245 }
 246
 247 bool SketchPlugin_PerpendicularAttrValidator::isValid(const AttributePtr& theAttribute,
 248                                                       const std::list<std::string>& theArguments,
 249                                                       Events_InfoMessage& theError) const
 250 {
 251   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 252     theError = "The attribute with the %1 type is not processed";
 253     theError.arg(theAttribute->attributeType());
 254     return false;
 255   }
 256
 257   std::string aParamA = theArguments.front();
 258   SessionPtr aMgr = ModelAPI_Session::get();
 259   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 260
 261   FeaturePtr anOwner = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 262   AttributeRefAttrPtr aRefAttr =
 263       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 264
 265   bool isObject = aRefAttr->isObject();
 266   ObjectPtr anObject = aRefAttr->object();
 267   if (isObject && anObject.get()) {
 268     FeaturePtr aRefFea = ModelAPI_Feature::feature(anObject);
 269
 270     AttributeRefAttrPtr aOtherAttr = anOwner->refattr(aParamA);
 271     ObjectPtr aOtherObject = aOtherAttr->object();
 272     FeaturePtr aOtherFea = ModelAPI_Feature::feature(aOtherObject);
 273
 274     // at least one feature should be a line
 275     if (aRefFea->getKind() != SketchPlugin_Line::ID() &&
 276         aOtherFea && aOtherFea->getKind() != SketchPlugin_Line::ID()) {
 277       theError = "At least one feature should be a line";
 278       return false;
 279     }
 280     else if (isSpline(aRefFea) || isSpline(aOtherFea)) {
 281       theError = "B-spline is not supported";
 282       return false;
 283     }
 284   }
 285   else {
 286     theError = "It uses an empty object";
 287     return false;
 288   }
 289
 290   return true;
 291 }
 292
 293 bool SketchPlugin_NotFixedValidator::isValid(const AttributePtr& theAttribute,
 294                                              const std::list<std::string>& theArguments,
 295                                              Events_InfoMessage& theError) const
 296 {
 297   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 298     theError = "The attribute with the %1 type is not processed";
 299     theError.arg(theAttribute->attributeType());
 300     return false;
 301   }
 302
 303   std::shared_ptr<SketchPlugin_Feature> aFeature =
 304       std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
 305   if (!aFeature)
 306     return true;
 307
 308   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 309
 310   SketchPlugin_Sketch* aSketch = aFeature->sketch();
 311   int aNbFeatures = aSketch->numberOfSubs();
 312   for (int anInd = 0; anInd < aNbFeatures; anInd++) {
 313     FeaturePtr aSubFeature = aSketch->subFeature(anInd);
 314     if (aSubFeature->getKind() != SketchPlugin_ConstraintRigid::ID() || aSubFeature == aFeature)
 315       continue;
 316     AttributeRefAttrPtr aRAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 317         aSubFeature->attribute(SketchPlugin_ConstraintRigid::ENTITY_A()));
 318     if (aRefAttr->isObject()) {
 319       if (aRefAttr->object() == aRAttr->object()) {
 320         ObjectPtr anObject = aRefAttr->object();
 321         std::string aName = anObject.get() ? anObject->data()->name() : "";
 322         theError = "The object %1 has been already fixed.";
 323         theError.arg(aName);
 324         return false;
 325       }
 326     }
 327     else if (aRefAttr->attr() == aRAttr->attr()) {
 328       AttributePtr anAttribute = aRefAttr->attr();
 329       std::string aName = anAttribute.get() ? anAttribute->id() : "";
 330       theError = "The attribute %1 has been already fixed.";
 331       theError.arg(aName);
 332       return false;
 333     }
 334   }
 335   return true;
 336 }
 337
 338 bool SketchPlugin_EqualAttrValidator::isValid(const AttributePtr& theAttribute,
 339                                               const std::list<std::string>& theArguments,
 340                                               Events_InfoMessage& theError) const
 341 {
 342   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 343     theError = "The attribute with the %1 type is not processed";
 344     theError.arg(theAttribute->attributeType());
 345     return false;
 346   }
 347
 348   std::string aParamA = theArguments.front();
 349   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 350   AttributeRefAttrPtr aRefAttr[2];
 351   aRefAttr[0] = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 352   aRefAttr[1] = aFeature->data()->refattr(aParamA);
 353
 354   if (!aRefAttr[0]->isObject() || !aRefAttr[1]->isObject()) {
 355     theError = "Attributes can not be used in equal constraint";
 356     return false;
 357   }
 358
 359   std::string aType[2];
 360   std::list<std::string> anArguments;
 361   for (int i = 0; i < 2; i++) {
 362     aFeature = ModelAPI_Feature::feature(aRefAttr[i]->object());
 363     if (!aFeature.get())
 364       return true;
 365
 366     aType[i] = aFeature->getKind();
 367     if (aFeature->getKind() != SketchPlugin_Line::ID() &&
 368         aFeature->getKind() != SketchPlugin_Circle::ID() &&
 369         aFeature->getKind() != SketchPlugin_Arc::ID() &&
 370         aFeature->getKind() != SketchPlugin_Ellipse::ID() &&
 371         aFeature->getKind() != SketchPlugin_EllipticArc::ID()) {
 372       theError = "The %1 feature is not supported by the Equal constraint.";
 373       theError.arg(aFeature->getKind());
 374       // wrong type of attribute
 375       return false;
 376     }
 377   }
 378
 379   bool isOk = aType[0] == aType[1];
 380   if (!isOk) {
 381     // circle and arc may be equal
 382     isOk = (aType[0] == SketchPlugin_Arc::ID() && aType[1] == SketchPlugin_Circle::ID())
 383         || (aType[0] == SketchPlugin_Circle::ID() && aType[1] == SketchPlugin_Arc::ID());
 384   }
 385   if (!isOk) {
 386     // ellipse and elliptic arc may be equal
 387     isOk = (aType[0] == SketchPlugin_EllipticArc::ID() && aType[1] == SketchPlugin_Ellipse::ID())
 388         || (aType[0] == SketchPlugin_Ellipse::ID() && aType[1] == SketchPlugin_EllipticArc::ID());
 389   }
 390   if (!isOk) {
 391     theError = "Features with kinds %1 and %2 can not be equal.";
 392     theError.arg(aType[0]).arg(aType[1]);
 393     return false;
 394   }
 395   return true;
 396 }
 397
 398 bool SketchPlugin_MirrorAttrValidator::isValid(const AttributePtr& theAttribute,
 399                                                const std::list<std::string>& theArguments,
 400                                                Events_InfoMessage& theError) const
 401 {
 402   if (theAttribute->attributeType() != ModelAPI_AttributeRefList::typeId()) {
 403     theError = "The attribute with the %1 type is not processed";
 404     theError.arg(theAttribute->attributeType());
 405     return false;
 406   }
 407
 408   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 409   AttributeRefListPtr aSelAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(theAttribute);
 410
 411   AttributeRefListPtr aRefListOfMirrored = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 412       aFeature->attribute(SketchPlugin_Constraint::ENTITY_C()));
 413   std::list<ObjectPtr> aMirroredObjects = aRefListOfMirrored->list();
 414
 415   for(int anInd = 0; anInd < aSelAttr->size(); anInd++) {
 416     ObjectPtr aSelObject = aSelAttr->object(anInd);
 417     std::string aName = aSelObject.get() ? aSelObject->data()->name() : "";
 418     std::list<ObjectPtr>::iterator aMirIter = aMirroredObjects.begin();
 419     for (; aMirIter != aMirroredObjects.end(); aMirIter++)
 420       if (aSelObject == *aMirIter) {
 421         theError = "The object %1 is a result of mirror";
 422         theError.arg(aName);
 423         return false;
 424       }
 425   }
 426   return true;
 427 }
 428
 429 bool SketchPlugin_CoincidenceAttrValidator::isValid(const AttributePtr& theAttribute,
 430                                                     const std::list<std::string>& theArguments,
 431                                                     Events_InfoMessage& theError) const
 432 {
 433   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 434     theError = "The attribute with the %1 type is not processed";
 435     theError.arg(theAttribute->attributeType());
 436     return false;
 437   }
 438
 439   // there is a check whether the feature contains a point and a linear edge or two point values
 440   std::string aParamA = theArguments.front();
 441   SessionPtr aMgr = ModelAPI_Session::get();
 442   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 443
 444   FeaturePtr aConstraint = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 445   AttributeRefAttrPtr aRefAttrA = aConstraint->data()->refattr(aParamA);
 446   if (!aRefAttrA) {
 447     theError = "The %1 attribute should be %2";
 448     theError.arg(aParamA).arg(ModelAPI_AttributeRefAttr::typeId());
 449     return false;
 450   }
 451
 452   AttributeRefAttrPtr aRefAttrB =
 453     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 454
 455   // first attribute is a point, it may coincide with any object
 456   if (!aRefAttrA->isObject())
 457     return true;
 458   else {
 459     ObjectPtr anObject = aRefAttrA->object();
 460     if (!anObject.get()) {
 461       theError = "%1 attribute has an empty object";
 462       theError.arg(aParamA);
 463       return false;
 464     }
 465     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrA->object());
 466     if (!aFeature.get()) {
 467       theError = "%1 attribute has an empty feature";
 468       theError.arg(aParamA);
 469       return false;
 470     }
 471
 472     if (aFeature->getKind() == SketchPlugin_Point::ID())
 473       return true;
 474   }
 475
 476   // second attribute is a point, it may coincide with any object
 477   if (!aRefAttrB->isObject())
 478     return true;
 479   else {
 480     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrB->object());
 481     if (!aFeature) {
 482       theError = "%1 attribute has an empty object";
 483       theError.arg(theAttribute->id());
 484       return false;
 485     }
 486     if (aFeature->getKind() == SketchPlugin_Point::ID())
 487       return true;
 488   }
 489   theError = "There is no an attribute filled by a point";
 490   return false;
 491 }
 492
 493
 494 bool SketchPlugin_CopyValidator::isValid(const AttributePtr& theAttribute,
 495                                          const std::list<std::string>& theArguments,
 496                                          Events_InfoMessage& theError) const
 497 {
 498   if (theAttribute->attributeType() != ModelAPI_AttributeRefList::typeId()) {
 499     theError = "The attribute with the %1 type is not processed";
 500     theError.arg(theAttribute->attributeType());
 501     return false;
 502   }
 503
 504   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 505   AttributeRefListPtr aSelAttr =
 506     std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(theAttribute);
 507
 508   AttributeRefListPtr aRefListOfInitial = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 509       aFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
 510   AttributeRefListPtr aRefListOfCopied = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 511       aFeature->attribute(SketchPlugin_Constraint::ENTITY_B()));
 512   std::list<ObjectPtr> anInitialObjects = aRefListOfInitial->list();
 513   std::list<ObjectPtr> aCopiedObjects = aRefListOfCopied->list();
 514
 515   std::list<ObjectPtr>::iterator anObjIter;
 516   for(int anInd = 0; anInd < aSelAttr->size(); anInd++) {
 517     ObjectPtr aSelObject = aSelAttr->object(anInd);
 518     anObjIter = anInitialObjects.begin();
 519     for (; anObjIter != anInitialObjects.end(); anObjIter++)
 520       if (aSelObject == *anObjIter)
 521         break;
 522     if (anObjIter != anInitialObjects.end())
 523       continue;
 524     anObjIter = aCopiedObjects.begin();
 525     for (; anObjIter != aCopiedObjects.end(); anObjIter++)
 526       if (aSelObject == *anObjIter) {
 527         std::string aName = aSelObject.get() ? aSelObject->data()->name() : "";
 528         theError = "The object %1 is a result of copy";
 529         theError.arg(aName);
 530         return false;
 531       }
 532   }
 533   return true;
 534 }
 535
 536 bool SketchPlugin_SolverErrorValidator::isValid(
 537   const std::shared_ptr<ModelAPI_Feature>& theFeature,
 538   const std::list<std::string>& theArguments,
 539   Events_InfoMessage& theError) const
 540 {
 541   AttributeStringPtr aAttributeString = theFeature->string(SketchPlugin_Sketch::SOLVER_ERROR());
 542
 543   if (!aAttributeString->value().empty()) {
 544     theError = aAttributeString->value();
 545     return false;
 546   }
 547
 548   return true;
 549 }
 550
 551 bool SketchPlugin_SolverErrorValidator::isNotObligatory(std::string theFeature,
 552                                                         std::string theAttribute)
 553 {
 554   return true;
 555 }
 556
 557 static bool hasSameTangentFeature(const std::set<AttributePtr>& theRefsList,
 558                                   const FeaturePtr theFeature)
 559 {
 560   for(std::set<AttributePtr>::const_iterator
 561       anIt = theRefsList.cbegin(); anIt != theRefsList.cend(); ++anIt) {
 562     std::shared_ptr<ModelAPI_Attribute> aAttr = (*anIt);
 563     FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aAttr->owner());
 564     if (!aFeature)
 565       continue;
 566     if (aFeature->getKind() == SketchPlugin_ConstraintTangent::ID()) {
 567       AttributeRefAttrPtr anAttrRefA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 568         aFeature->attribute(SketchPlugin_ConstraintTangent::ENTITY_A()));
 569       AttributeRefAttrPtr anAttrRefB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 570         aFeature->attribute(SketchPlugin_ConstraintTangent::ENTITY_B()));
 571       if(anAttrRefA.get()) {
 572         ResultPtr aResA = std::dynamic_pointer_cast<ModelAPI_Result>(anAttrRefA->object());
 573         if(aResA.get()) {
 574           DocumentPtr aDoc = aResA->document();
 575           if(aDoc.get()) {
 576             FeaturePtr aFeatureA = aDoc->feature(aResA);
 577             if(aFeatureA.get() && aFeatureA == theFeature) {
 578               return true;
 579             }
 580           }
 581         }
 582       }
 583       if(anAttrRefB.get()) {
 584         ResultPtr aResB = std::dynamic_pointer_cast<ModelAPI_Result>(anAttrRefB->object());
 585         if(aResB.get()) {
 586           DocumentPtr aDoc = aResB->document();
 587           if(aDoc.get()) {
 588             FeaturePtr aFeatureB = aDoc->feature(aResB);
 589             if(aFeatureB.get() && aFeatureB == theFeature) {
 590               return true;
 591             }
 592           }
 593         }
 594       }
 595     }
 596   }
 597   return false;
 598 }
 599
 600 static bool isPointPointCoincidence(const FeaturePtr& theCoincidence)
 601 {
 602   AttributeRefAttrPtr aRefAttr[2] = {
 603       theCoincidence->refattr(SketchPlugin_Constraint::ENTITY_A()),
 604       theCoincidence->refattr(SketchPlugin_Constraint::ENTITY_B())
 605   };
 606
 607   bool arePoints = true;
 608   for (int i = 0; i < 2 && arePoints; ++i) {
 609     if (aRefAttr[i]->isObject()) {
 610       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr[i]->object());
 611       arePoints = aFeature.get() && aFeature->getKind() == SketchPlugin_Point::ID();
 612     } else
 613       arePoints = aRefAttr[i]->attr().get() != NULL;
 614   }
 615   return arePoints;
 616 }
 617
 618 bool SketchPlugin_FilletVertexValidator::isValid(const AttributePtr& theAttribute,
 619                                                  const std::list<std::string>& theArguments,
 620                                                  Events_InfoMessage& theError) const
 621 {
 622   AttributeRefAttrPtr aPointRefAttr =
 623     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 624   if(!aPointRefAttr.get()) {
 625     theError = "Error: Point not selected.";
 626     return false;
 627   }
 628
 629   AttributePtr aPointAttribute = aPointRefAttr->attr();
 630   if (!aPointAttribute.get()) {
 631     theError = "Error: Bad point selected.";
 632     return false;
 633   }
 634   std::shared_ptr<GeomAPI_Pnt2d> aSelectedPnt =
 635     std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aPointAttribute)->pnt();
 636
 637   // Obtain constraint coincidence for the fillet point.
 638   const std::set<AttributePtr>& aRefsList = aPointAttribute->owner()->data()->refsToMe();
 639   FeaturePtr aConstraintCoincidence;
 640   for(std::set<AttributePtr>::const_iterator anIt = aRefsList.cbegin();
 641       anIt != aRefsList.cend(); ++anIt) {
 642     std::shared_ptr<ModelAPI_Attribute> aAttr = (*anIt);
 643     FeaturePtr aConstrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aAttr->owner());
 644     if (aConstrFeature->getKind() == SketchPlugin_ConstraintCoincidence::ID()) {
 645       if (!isPointPointCoincidence(aConstrFeature))
 646         continue;
 647
 648       AttributeRefAttrPtr anAttrRefA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 649         aConstrFeature->attribute(SketchPlugin_ConstraintCoincidence::ENTITY_A()));
 650       AttributeRefAttrPtr anAttrRefB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 651         aConstrFeature->attribute(SketchPlugin_ConstraintCoincidence::ENTITY_B()));
 652
 653       AttributePtr anAttrA = anAttrRefA->attr();
 654       if(aPointAttribute == anAttrA) {
 655         aConstraintCoincidence = aConstrFeature;
 656         break;
 657       }
 658
 659       AttributePtr anAttrB = anAttrRefB->attr();
 660       if(aPointAttribute == anAttrB) {
 661         aConstraintCoincidence = aConstrFeature;
 662         break;
 663       }
 664     }
 665   }
 666
 667   if(!aConstraintCoincidence.get()) {
 668     theError = "Error: one of the selected point does not have coincidence.";
 669     return false;
 670   }
 671
 672   // Get coincides from constraint.
 673   std::set<FeaturePtr> aCoinsides;
 674   SketchPlugin_Tools::findCoincidences(aConstraintCoincidence,
 675                                         SketchPlugin_ConstraintCoincidence::ENTITY_A(),
 676                                         aCoinsides,
 677                                         true);
 678   SketchPlugin_Tools::findCoincidences(aConstraintCoincidence,
 679                                         SketchPlugin_ConstraintCoincidence::ENTITY_B(),
 680                                         aCoinsides,
 681                                         true);
 682
 683   // Remove points and external lines from set of coincides.
 684   std::set<FeaturePtr> aNewSetOfCoincides;
 685   for(std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 686       anIt != aCoinsides.end(); ++anIt) {
 687     std::shared_ptr<SketchPlugin_SketchEntity> aSketchEntity =
 688       std::dynamic_pointer_cast<SketchPlugin_SketchEntity>(*anIt);
 689     if(aSketchEntity.get() && (aSketchEntity->isCopy() || aSketchEntity->isExternal())) {
 690       continue;
 691     }
 692     if((*anIt)->getKind() != SketchPlugin_Line::ID() &&
 693         (*anIt)->getKind() != SketchPlugin_Arc::ID()) {
 694           continue;
 695     }
 696     if((*anIt)->getKind() == SketchPlugin_Arc::ID()) {
 697       AttributePtr anArcCenter = (*anIt)->attribute(SketchPlugin_Arc::CENTER_ID());
 698       std::shared_ptr<GeomAPI_Pnt2d> anArcCenterPnt =
 699         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anArcCenter)->pnt();
 700       double aDistSelectedArcCenter = aSelectedPnt->distance(anArcCenterPnt);
 701       if(aDistSelectedArcCenter < tolerance) {
 702         continue;
 703       }
 704     }
 705     aNewSetOfCoincides.insert(*anIt);
 706   }
 707   aCoinsides = aNewSetOfCoincides;
 708
 709   // If we still have more than two coincides remove auxilary entities from set of coincides.
 710   if(aCoinsides.size() > 2) {
 711     aNewSetOfCoincides.clear();
 712     for(std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 713         anIt != aCoinsides.end(); ++anIt) {
 714       if(!(*anIt)->boolean(SketchPlugin_SketchEntity::AUXILIARY_ID())->value()) {
 715         aNewSetOfCoincides.insert(*anIt);
 716       }
 717     }
 718     aCoinsides = aNewSetOfCoincides;
 719   }
 720
 721   if(aCoinsides.size() != 2) {
 722     theError = "Error: One of the selected points does not have two suitable edges for fillet.";
 723     return false;
 724   }
 725
 726   // Check that selected edges don't have tangent constraint.
 727   std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 728   FeaturePtr aFirstFeature = *anIt++;
 729   FeaturePtr aSecondFeature = *anIt;
 730   const std::set<AttributePtr>& aFirstFeatureRefsList = aFirstFeature->data()->refsToMe();
 731   if(hasSameTangentFeature(aFirstFeatureRefsList, aSecondFeature)) {
 732     theError = "Error: Edges in selected point has tangent constraint.";
 733     return false;
 734   }
 735
 736   std::list<ResultPtr> aFirstResults = aFirstFeature->results();
 737   for(std::list<ResultPtr>::iterator aResIt = aFirstResults.begin();
 738       aResIt != aFirstResults.end(); ++aResIt) {
 739     ResultPtr aRes = *aResIt;
 740     const std::set<AttributePtr>& aResRefsList = aRes->data()->refsToMe();
 741     if(hasSameTangentFeature(aResRefsList, aSecondFeature)) {
 742       theError = "Error: Edges in selected point has tangent constraint.";
 743       return false;
 744     }
 745   }
 746
 747   // Check the features are not tangent
 748   std::shared_ptr<GeomAPI_Shape> aFirstShape = aFirstFeature->lastResult()->shape();
 749   std::shared_ptr<GeomAPI_Shape> aSecondShape = aSecondFeature->lastResult()->shape();
 750   if (!aFirstShape || !aFirstShape->isEdge() ||
 751       !aSecondShape || !aSecondShape->isEdge()) {
 752     theError = "Error: At least on of the features is not an edge";
 753     return false;
 754   }
 755
 756   std::shared_ptr<GeomAPI_Edge> anEdge1 = std::dynamic_pointer_cast<GeomAPI_Edge>(aFirstShape);
 757   std::shared_ptr<GeomAPI_Edge> anEdge2 = std::dynamic_pointer_cast<GeomAPI_Edge>(aSecondShape);
 758
 759   static const double TOL = 1.e-7;
 760   if (anEdge1->isLine() && anEdge2->isLine()) {
 761     // Check that lines not collinear
 762     std::shared_ptr<GeomAPI_Dir> aDir1 = anEdge1->line()->direction();
 763     std::shared_ptr<GeomAPI_Dir> aDir2 = anEdge2->line()->direction();
 764     double aCross = aDir1->cross(aDir2)->squareModulus();
 765     if (aCross < TOL * TOL)
 766       return false;
 767   } else if (anEdge1->isArc() && anEdge2->isArc()) {
 768     // check the circles are not tangent
 769     std::shared_ptr<GeomAPI_Circ> aCirc1 = anEdge1->circle();
 770     std::shared_ptr<GeomAPI_Circ> aCirc2 = anEdge2->circle();
 771     double aDistCC = aCirc1->center()->distance(aCirc2->center());
 772     double aRadSum = aCirc1->radius() + aCirc2->radius();
 773     double aRadDiff = fabs(aCirc1->radius() - aCirc2->radius());
 774     if (fabs(aDistCC - aRadSum) < TOL || fabs(aDistCC - aRadDiff) < TOL)
 775       return false;
 776   } else {
 777     // check whether line and arc are tangent
 778     std::shared_ptr<GeomAPI_Circ> aCirc;
 779     std::shared_ptr<GeomAPI_Lin> aLine;
 780     if (anEdge1->isLine()) {
 781       aLine = anEdge1->line();
 782       aCirc = anEdge2->circle();
 783     } else {
 784       aCirc = anEdge1->circle();
 785       aLine = anEdge2->line();
 786     }
 787
 788     double aDistCL = aLine->distance(aCirc->center());
 789     if (fabs(aDistCL - aCirc->radius()) < TOL)
 790       return false;
 791   }
 792
 793   return true;
 794 }
 795
 796 bool SketchPlugin_MiddlePointAttrValidator::isValid(const AttributePtr& theAttribute,
 797                                                     const std::list<std::string>& theArguments,
 798                                                     Events_InfoMessage& theError) const
 799 {
 800   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 801     theError = "The attribute with the %1 type is not processed";
 802     theError.arg(theAttribute->attributeType());
 803     return false;
 804   }
 805
 806   // there is a check whether the feature contains a point and a linear edge or two point values
 807   std::string aParamA = theArguments.front();
 808   SessionPtr aMgr = ModelAPI_Session::get();
 809   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 810
 811   FeaturePtr anAttributeFeature =
 812     std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 813   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 814   AttributeRefAttrPtr anOtherAttr = anAttributeFeature->data()->refattr(aParamA);
 815
 816   AttributeRefAttrPtr aRefAttrs[2] = {aRefAttr, anOtherAttr};
 817   int aNbPoints = 0;
 818   int aNbLines = 0;
 819   for (int i = 0; i < 2; ++i) {
 820     if (!aRefAttrs[i]->isObject())
 821       ++aNbPoints;
 822     else {
 823       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrs[i]->object());
 824       if (!aFeature) {
 825         if (aNbPoints + aNbLines != 0)
 826           return true;
 827         else continue;
 828       }
 829
 830       if (aFeature->getKind() == SketchPlugin_Point::ID())
 831         ++aNbPoints;
 832       else if (aFeature->getKind() == SketchPlugin_Line::ID() ||
 833                aFeature->getKind() == SketchPlugin_Arc::ID() ||
 834                aFeature->getKind() == SketchPlugin_EllipticArc::ID())
 835         ++aNbLines;
 836     }
 837   }
 838
 839   if (aNbPoints != 1 || aNbLines != 1) {
 840     theError = "Middle point constraint allows points and lines only";
 841     return false;
 842   }
 843   return true;
 844 }
 845
 846 bool SketchPlugin_ArcTangentPointValidator::isValid(const AttributePtr& theAttribute,
 847                                                     const std::list<std::string>& /*theArguments*/,
 848                                                     Events_InfoMessage& theError) const
 849 {
 850   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 851     theError = "The attribute with the %1 type is not processed";
 852     theError.arg(theAttribute->attributeType());
 853     return false;
 854   }
 855   FeaturePtr anOwner = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 856   AttributeStringPtr anArcTypeAttr = anOwner->string(SketchPlugin_MacroArc::ARC_TYPE());
 857   if (anArcTypeAttr && anArcTypeAttr->value() != SketchPlugin_MacroArc::ARC_TYPE_BY_TANGENT_EDGE())
 858     return true; // not applicable for non-tangent arcs
 859
 860   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 861   AttributePtr anAttr = aRefAttr->attr();
 862   if (!anAttr) {
 863     theError = "The attribute %1 should be a point";
 864     theError.arg(theAttribute->id());
 865     return false;
 866   }
 867
 868   FeaturePtr anAttrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(anAttr->owner());
 869   const std::string& aFeatureType = anAttrFeature->getKind();
 870   if (aFeatureType == SketchPlugin_Arc::ID()) {
 871     // selected point should not be a center of arc
 872     const std::string& aPntId = anAttr->id();
 873     if (aPntId != SketchPlugin_Arc::START_ID() && aPntId != SketchPlugin_Arc::END_ID()) {
 874       theError = "The attribute %1 is not supported";
 875       theError.arg(aPntId);
 876       return false;
 877     }
 878   }
 879   else if (aFeatureType == SketchPlugin_Line::ID()) {
 880     // selected point should be bound point of line
 881     const std::string& aPntId = anAttr->id();
 882     if (aPntId != SketchPlugin_Line::START_ID() && aPntId != SketchPlugin_Line::END_ID()) {
 883       theError = "The attribute %1 is not supported";
 884       theError.arg(aPntId);
 885       return false;
 886     }
 887   }
 888   else {
 889     theError = "Unable to build tangent arc on %1";
 890     theError.arg(anAttrFeature->getKind());
 891     return false;
 892   }
 893
 894   return true;
 895 }
 896
 897 bool SketchPlugin_ArcTransversalPointValidator::isValid(
 898     const AttributePtr& theAttribute,
 899     const std::list<std::string>& /*theArguments*/,
 900     Events_InfoMessage& theError) const
 901 {
 902   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 903     theError = "The attribute with the %1 type is not processed";
 904     theError.arg(theAttribute->attributeType());
 905     return false;
 906   }
 907   FeaturePtr anOwner = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 908   AttributeStringPtr anArcTypeAttr = anOwner->string(SketchPlugin_MacroArc::ARC_TYPE());
 909   if (anArcTypeAttr &&
 910       anArcTypeAttr->value() != SketchPlugin_MacroArc::ARC_TYPE_BY_TRANSVERSAL_LINE())
 911     return true; // not applicable for non-transversal arcs
 912
 913   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 914   AttributePtr anAttr = aRefAttr->attr();
 915   if (!anAttr) {
 916     theError = "The attribute %1 should be a point";
 917     theError.arg(theAttribute->id());
 918     return false;
 919   }
 920
 921   FeaturePtr anAttrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(anAttr->owner());
 922   const std::string& aFeatureType = anAttrFeature->getKind();
 923   if (aFeatureType == SketchPlugin_Line::ID()) {
 924     // selected point should be bound point of line
 925     const std::string& aPntId = anAttr->id();
 926     if (aPntId != SketchPlugin_Line::START_ID() && aPntId != SketchPlugin_Line::END_ID()) {
 927       theError = "The attribute %1 is not supported";
 928       theError.arg(aPntId);
 929       return false;
 930     }
 931   }
 932   else {
 933     theError = "Unable to build perpendicular arc on %1";
 934     theError.arg(anAttrFeature->getKind());
 935     return false;
 936   }
 937
 938   return true;
 939 }
 940
 941 bool SketchPlugin_IntersectionValidator::isValid(const AttributePtr& theAttribute,
 942                                                  const std::list<std::string>& theArguments,
 943                                                  Events_InfoMessage& theError) const
 944 {
 945   if (theAttribute->attributeType() != ModelAPI_AttributeSelection::typeId()) {
 946     theError = "The attribute with the %1 type is not processed";
 947     theError.arg(theAttribute->attributeType());
 948     return false;
 949   }
 950   AttributeSelectionPtr anExternalAttr =
 951       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(theAttribute);
 952   std::shared_ptr<GeomAPI_Edge> anEdge;
 953   if (anExternalAttr && anExternalAttr->value() && anExternalAttr->value()->isEdge()) {
 954     anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(anExternalAttr->value()));
 955   } else if(anExternalAttr->context() && anExternalAttr->context()->shape() &&
 956             anExternalAttr->context()->shape()->isEdge()) {
 957     anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(anExternalAttr->context()->shape()));
 958   }
 959
 960   if (!anEdge) {
 961     theError = "The attribute %1 should be an edge";
 962     theError.arg(theAttribute->id());
 963     return false;
 964   }
 965
 966   // find a sketch
 967   std::shared_ptr<SketchPlugin_Sketch> aSketch;
 968   std::set<AttributePtr> aRefs = anExternalAttr->owner()->data()->refsToMe();
 969   std::set<AttributePtr>::const_iterator anIt = aRefs.begin();
 970   for (; anIt != aRefs.end(); ++anIt) {
 971     CompositeFeaturePtr aComp =
 972         std::dynamic_pointer_cast<ModelAPI_CompositeFeature>((*anIt)->owner());
 973     if (aComp && aComp->getKind() == SketchPlugin_Sketch::ID()) {
 974       aSketch = std::dynamic_pointer_cast<SketchPlugin_Sketch>(aComp);
 975       break;
 976     }
 977   }
 978   if (!aSketch) {
 979     theError = "There is no sketch referring to the current feature";
 980     return false;
 981   }
 982
 983   // check the edge is intersected with sketch plane
 984   std::shared_ptr<GeomAPI_Pln> aPlane = aSketch->plane();
 985
 986   std::list<GeomPointPtr> anIntersectionsPoints;
 987   anEdge->intersectWithPlane(aPlane, anIntersectionsPoints);
 988   if (anIntersectionsPoints.empty()) {
 989     theError = "The edge is not intersected with sketch plane";
 990     return false;
 991   }
 992   return true;
 993 }
 994
 995 bool SketchPlugin_SplitValidator::isValid(const AttributePtr& theAttribute,
 996                                           const std::list<std::string>& theArguments,
 997                                           Events_InfoMessage& theError) const
 998 {
 999   bool aValid = false;
1000
1001   if (theAttribute->attributeType() != ModelAPI_AttributeReference::typeId()) {
1002     theError = "The attribute with the %1 type is not processed";
1003     theError.arg(theAttribute->attributeType());
1004     return aValid;
1005   }
1006   AttributeReferencePtr aFeatureAttr =
1007             std::dynamic_pointer_cast<ModelAPI_AttributeReference>(theAttribute);
1008   std::shared_ptr<SketchPlugin_Feature> aSplitFeature =
1009     std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
1010
1011   ObjectPtr anAttrObject = aFeatureAttr->value();
1012   if (!anAttrObject) {
1013     AttributePtr aPreviewAttr = aSplitFeature->attribute(SketchPlugin_Trim::PREVIEW_OBJECT());
1014     aFeatureAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(aPreviewAttr);
1015     anAttrObject = aFeatureAttr->value();
1016   }
1017
1018   FeaturePtr anAttrFeature = ModelAPI_Feature::feature(anAttrObject);
1019   if (!anAttrFeature)
1020     return aValid;
1021
1022   std::set<ResultPtr> anEdgeShapes;
1023   ModelGeomAlgo_Shape::shapesOfType(anAttrFeature, GeomAPI_Shape::EDGE, anEdgeShapes);
1024   if (anEdgeShapes.empty() || anEdgeShapes.size() > 1 /*there case has not existed yet*/)
1025     return aValid;
1026
1027   // coincidences to the feature
1028   std::set<std::shared_ptr<GeomDataAPI_Point2D> > aRefAttributes;
1029   ModelGeomAlgo_Point2D::getPointsOfReference(anAttrFeature,
1030                       SketchPlugin_ConstraintCoincidence::ID(),
1031                       aRefAttributes, SketchPlugin_Point::ID(), SketchPlugin_Point::COORD_ID());
1032
1033   GeomShapePtr anAttrShape = (*anEdgeShapes.begin())->shape();
1034   std::shared_ptr<SketchPlugin_Feature> aSFeature =
1035                                 std::dynamic_pointer_cast<SketchPlugin_Feature>(anAttrFeature);
1036   if (!aSFeature || aSFeature->isCopy())
1037     return false;
1038   SketchPlugin_Sketch* aSketch = aSFeature->sketch();
1039
1040   std::shared_ptr<ModelAPI_Data> aData = aSketch->data();
1041   std::shared_ptr<GeomDataAPI_Point> aC = std::dynamic_pointer_cast<GeomDataAPI_Point>(
1042       aData->attribute(SketchPlugin_Sketch::ORIGIN_ID()));
1043   std::shared_ptr<GeomDataAPI_Dir> aX = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
1044       aData->attribute(SketchPlugin_Sketch::DIRX_ID()));
1045   std::shared_ptr<GeomDataAPI_Dir> aNorm = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
1046       aData->attribute(SketchPlugin_Sketch::NORM_ID()));
1047   std::shared_ptr<GeomAPI_Dir> aDirY(new GeomAPI_Dir(aNorm->dir()->cross(aX->dir())));
1048
1049   typedef std::map<std::shared_ptr<GeomAPI_Pnt>,
1050                     std::pair<std::list<std::shared_ptr<GeomDataAPI_Point2D> >,
1051                               std::list<std::shared_ptr<ModelAPI_Object> > > > PointToRefsMap;
1052   PointToRefsMap aPointsInfo;
1053
1054   ModelGeomAlgo_Point2D::getPointsInsideShape(anAttrShape, aRefAttributes, aC->pnt(),
1055                                               aX->dir(), aDirY, aPointsInfo);
1056   int aCoincidentToFeature = (int)aPointsInfo.size();
1057   if (anAttrFeature->getKind() == SketchPlugin_Circle::ID() ||
1058       anAttrFeature->getKind() == SketchPlugin_Ellipse::ID())
1059     aValid = aCoincidentToFeature >= 2;
1060   else
1061     aValid = aCoincidentToFeature >= 1;
1062
1063   return aValid;
1064 }
1065
1066 bool SketchPlugin_TrimValidator::isValid(const AttributePtr& theAttribute,
1067                                          const std::list<std::string>& theArguments,
1068                                          Events_InfoMessage& theError) const
1069 {
1070   bool aValid = false;
1071
1072   if (theAttribute->attributeType() != ModelAPI_AttributeReference::typeId()) {
1073     theError = "The attribute with the %1 type is not processed";
1074     theError.arg(theAttribute->attributeType());
1075     return aValid;
1076   }
1077   AttributeReferencePtr aBaseObjectAttr =
1078             std::dynamic_pointer_cast<ModelAPI_AttributeReference>(theAttribute);
1079
1080   std::shared_ptr<SketchPlugin_Feature> aTrimFeature =
1081                  std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
1082
1083   ObjectPtr aBaseObject = aBaseObjectAttr->value();
1084   if (!aBaseObject) {
1085     AttributePtr aPreviewAttr = aTrimFeature->attribute(SketchPlugin_Trim::PREVIEW_OBJECT());
1086     aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(aPreviewAttr);
1087     aBaseObject = aBaseObjectAttr->value();
1088   }
1089
1090   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObject);
1091   if (!aBaseFeature)
1092     return aValid;
1093
1094   std::shared_ptr<SketchPlugin_Feature> aSketchFeature =
1095                                  std::dynamic_pointer_cast<SketchPlugin_Feature>(aBaseFeature);
1096   if (!aSketchFeature.get() || aSketchFeature->isCopy())
1097     return aValid;
1098
1099   // point on feature
1100   AttributePoint2DPtr aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1101                        aTrimFeature->data()->attribute(SketchPlugin_Trim::PREVIEW_POINT()));
1102
1103   SketchPlugin_Sketch* aSketch = aTrimFeature->sketch();
1104
1105   std::shared_ptr<GeomAPI_Pnt2d> anAttributePnt2d = aPoint->pnt();
1106   std::shared_ptr<GeomAPI_Pnt> anAttributePnt = aSketch->to3D(anAttributePnt2d->x(),
1107                                                               anAttributePnt2d->y());
1108
1109   std::map<ObjectPtr, std::set<GeomShapePtr> > aCashedShapes;
1110   std::map<ObjectPtr, std::map<std::shared_ptr<GeomAPI_Pnt>,
1111            std::pair<std::list<std::shared_ptr<GeomDataAPI_Point2D> >,
1112                      std::list<std::shared_ptr<ModelAPI_Object> > > > > anObjectToPoints;
1113   SketchPlugin_SegmentationTools::fillObjectShapes(
1114       aTrimFeature.get(), aBaseObject, aCashedShapes, anObjectToPoints);
1115   const std::set<GeomShapePtr>& aShapes = aCashedShapes[aBaseObject];
1116
1117   return aShapes.size() > 1;
1118 }
1119
1120 bool SketchPlugin_ProjectionValidator::isValid(const AttributePtr& theAttribute,
1121                                                const std::list<std::string>& theArguments,
1122                                                Events_InfoMessage& theError) const
1123 {
1124   if (theAttribute->attributeType() != ModelAPI_AttributeSelection::typeId()) {
1125     theError = "The attribute with the %1 type is not processed";
1126     theError.arg(theAttribute->attributeType());
1127     return false;
1128   }
1129
1130   AttributeSelectionPtr aFeatureAttr =
1131       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(theAttribute);
1132   std::shared_ptr<GeomAPI_Edge> anEdge;
1133   std::shared_ptr<SketchPlugin_Feature> aSketchFeature;
1134   if (aFeatureAttr.get()) {
1135     GeomShapePtr aVal = aFeatureAttr->value();
1136     ResultPtr aRes = aFeatureAttr->context();
1137     if (aVal && aVal->isVertex())
1138       return true; // vertex is always could be projected
1139     if (aVal && aVal->isEdge()) {
1140       anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aFeatureAttr->value()));
1141     } else if(aRes && aRes->shape()) {
1142       if (aRes->shape()->isVertex())
1143         return true; // vertex is always could be projected
1144       else if (aRes->shape()->isEdge())
1145         anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aFeatureAttr->context()->shape()));
1146     }
1147
1148     // try to convert result to sketch feature
1149     if (aRes) {
1150       aSketchFeature =
1151         std::dynamic_pointer_cast<SketchPlugin_Feature>(ModelAPI_Feature::feature(aRes));
1152     }
1153   }
1154   if (!anEdge) {
1155     theError = "The attribute %1 should be an edge or vertex";
1156     theError.arg(theAttribute->id());
1157     return false;
1158   }
1159
1160   // find a sketch
1161   std::shared_ptr<SketchPlugin_Sketch> aSketch;
1162   std::set<AttributePtr> aRefs = theAttribute->owner()->data()->refsToMe();
1163   std::set<AttributePtr>::const_iterator anIt = aRefs.begin();
1164   for (; anIt != aRefs.end(); ++anIt) {
1165     CompositeFeaturePtr aComp =
1166         std::dynamic_pointer_cast<ModelAPI_CompositeFeature>((*anIt)->owner());
1167     if (aComp && aComp->getKind() == SketchPlugin_Sketch::ID()) {
1168       aSketch = std::dynamic_pointer_cast<SketchPlugin_Sketch>(aComp);
1169       break;
1170     }
1171   }
1172   if (!aSketch) {
1173     theError = "There is no sketch referring to the current feature";
1174     return false;
1175   }
1176   if (aSketchFeature && aSketch.get() == aSketchFeature->sketch()) {
1177     theError = "Unable to project feature from the same sketch";
1178     return false;
1179   }
1180
1181   std::shared_ptr<GeomAPI_Pln> aPlane = aSketch->plane();
1182   std::shared_ptr<GeomAPI_Dir> aNormal = aPlane->direction();
1183   std::shared_ptr<GeomAPI_Pnt> anOrigin = aPlane->location();
1184
1185   bool aValid = true;
1186   if (anEdge->isLine()) {
1187     std::shared_ptr<GeomAPI_Lin> aLine = anEdge->line();
1188     std::shared_ptr<GeomAPI_Dir> aLineDir = aLine->direction();
1189     double aDot = fabs(aNormal->dot(aLineDir));
1190     aValid = fabs(aDot - 1.0) >= tolerance * tolerance;
1191     if (!aValid)
1192       theError = "Error: Line is orthogonal to the sketch plane.";
1193   }
1194   else if (anEdge->isCircle() || anEdge->isArc()) {
1195     std::shared_ptr<GeomAPI_Circ> aCircle = anEdge->circle();
1196     std::shared_ptr<GeomAPI_Dir> aCircNormal = aCircle->normal();
1197     double aDot = fabs(aNormal->dot(aCircNormal));
1198     aValid = aDot >= tolerance * tolerance;
1199     if (!aValid)
1200       theError.arg(anEdge->isCircle() ? "Error: Circle is orthogonal to the sketch plane."
1201                                       : "Error: Arc is orthogonal to the sketch plane.");
1202   }
1203   else if (anEdge->isEllipse()) {
1204     std::shared_ptr<GeomAPI_Ellipse> anEllipse = anEdge->ellipse();
1205     std::shared_ptr<GeomAPI_Dir> anEllipseNormal = anEllipse->normal();
1206     double aDot = fabs(aNormal->dot(anEllipseNormal));
1207     aValid = fabs(aDot - 1.0) <= tolerance * tolerance;
1208     if (!aValid)
1209       theError.arg(anEdge->isClosed() ? "Error: Ellipse is orthogonal to the sketch plane."
1210                                       : "Error: Elliptic Arc is orthogonal to the sketch plane.");
1211   }
1212
1213   return aValid;
1214 }
1215
1216
1217 static std::set<FeaturePtr> common(const std::set<FeaturePtr>& theSet1,
1218                                    const std::set<FeaturePtr>& theSet2)
1219 {
1220   std::set<FeaturePtr> aCommon;
1221   if (theSet1.empty() || theSet2.empty())
1222     return aCommon;
1223
1224   std::set<FeaturePtr>::const_iterator anIt2 = theSet2.begin();
1225   for (; anIt2 != theSet2.end(); ++anIt2)
1226     if (theSet1.find(*anIt2) != theSet1.end())
1227       aCommon.insert(*anIt2);
1228   return aCommon;
1229 }
1230
1231 bool SketchPlugin_DifferentReferenceValidator::isValid(
1232     const AttributePtr& theAttribute,
1233     const std::list<std::string>& theArguments,
1234     Events_InfoMessage& theError) const
1235 {
1236   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1237
1238   int aNbFeaturesReferred = 0;
1239   int aNbAttributesReferred = 0;
1240   std::set<FeaturePtr> aCommonReferredFeatures;
1241
1242   // find all features referred by attributes listed in theArguments
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     std::set<FeaturePtr> aCoincidentFeatures;
1250     if (aRefAttr->isObject()) {
1251       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->object());
1252       if (aFeature) {
1253         aCoincidentFeatures.insert(aFeature);
1254         aNbFeaturesReferred += 1;
1255       }
1256     } else {
1257       AttributePoint2DPtr aPoint =
1258           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
1259       if (aPoint) {
1260         aCoincidentFeatures = SketchPlugin_Tools::findFeaturesCoincidentToPoint(aPoint);
1261         aNbAttributesReferred += 1;
1262       }
1263     }
1264
1265     if (aCommonReferredFeatures.empty())
1266       aCommonReferredFeatures = aCoincidentFeatures;
1267     else
1268       aCommonReferredFeatures = common(aCommonReferredFeatures, aCoincidentFeatures);
1269
1270     if (aCommonReferredFeatures.empty())
1271       return true;
1272   }
1273
1274   bool isOk = aNbFeaturesReferred < 1;
1275   if (aNbFeaturesReferred == 1) {
1276     if (aCommonReferredFeatures.size() == 1) {
1277       FeaturePtr aFeature = *aCommonReferredFeatures.begin();
1278       isOk = aNbAttributesReferred <= 1 ||
1279              aFeature->getKind() == SketchPlugin_Circle::ID() ||
1280              aFeature->getKind() == SketchPlugin_Arc::ID();
1281     } else
1282       isOk = false;
1283   }
1284
1285   if (!isOk)
1286     theError = "Attributes are referred to the same feature";
1287   return isOk;
1288 }
1289
1290 bool SketchPlugin_DifferentPointReferenceValidator::isValid(
1291     const AttributePtr& theAttribute,
1292     const std::list<std::string>& theArguments,
1293     Events_InfoMessage& theError) const
1294 {
1295   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1296   std::set<AttributePoint2DPtr> aReferredCoincidentPoints;
1297
1298   // find all points referred by attributes listed in theArguments
1299   bool hasRefsToPoints = false;
1300   std::list<std::string>::const_iterator anArgIt = theArguments.begin();
1301   for (; anArgIt != theArguments.end(); ++anArgIt) {
1302     AttributeRefAttrPtr aRefAttr = anOwner->refattr(*anArgIt);
1303     if (!aRefAttr)
1304       continue;
1305
1306     if (!aRefAttr->isObject()) {
1307       AttributePoint2DPtr aPoint =
1308           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
1309       if (aReferredCoincidentPoints.empty())
1310         aReferredCoincidentPoints = SketchPlugin_Tools::findPointsCoincidentToPoint(aPoint);
1311       else if (aReferredCoincidentPoints.find(aPoint) == aReferredCoincidentPoints.end())
1312         return true; // non-coincident point has been found
1313       else
1314         hasRefsToPoints = true;
1315     }
1316   }
1317
1318   if (hasRefsToPoints)
1319     theError = "Attributes are referred to the same point";
1320   return !hasRefsToPoints;
1321 }
1322
1323 bool SketchPlugin_CirclePassedPointValidator::isValid(
1324     const AttributePtr& theAttribute,
1325     const std::list<std::string>&,
1326     Events_InfoMessage& theError) const
1327 {
1328   static const std::string aErrorMessage(
1329       "Passed point refers to the same feature as a center point");
1330
1331   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1332
1333   AttributeRefAttrPtr aCenterRef =
1334       anOwner->refattr(SketchPlugin_MacroCircle::CENTER_POINT_REF_ID());
1335   AttributeRefAttrPtr aPassedRef =
1336       anOwner->refattr(SketchPlugin_MacroCircle::PASSED_POINT_REF_ID());
1337
1338   if (!aPassedRef->isObject())
1339     return true;
1340
1341   FeaturePtr aPassedFeature = ModelAPI_Feature::feature(aPassedRef->object());
1342   if (!aPassedFeature)
1343     return true;
1344
1345   if (aCenterRef->isObject()) {
1346     if (aCenterRef->object() == aPassedRef->object()) {
1347       theError = aErrorMessage;
1348       return false;
1349     }
1350   } else {
1351     AttributePoint2DPtr aCenterPoint =
1352         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aCenterRef->attr());
1353     if (aCenterPoint) {
1354       std::set<FeaturePtr> aCoincidentFeatures =
1355           SketchPlugin_Tools::findFeaturesCoincidentToPoint(aCenterPoint);
1356       // check one of coincident features is a feature referred by passed point
1357       std::set<FeaturePtr>::const_iterator anIt = aCoincidentFeatures.begin();
1358       for(; anIt != aCoincidentFeatures.end(); ++anIt)
1359         if (*anIt == aPassedFeature) {
1360           theError = aErrorMessage;
1361           return false;
1362         }
1363     }
1364   }
1365   return true;
1366 }
1367
1368 bool SketchPlugin_ThirdPointValidator::isValid(
1369     const AttributePtr& theAttribute,
1370     const std::list<std::string>& theArguments,
1371     Events_InfoMessage& theError) const
1372 {
1373   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1374   return arePointsNotOnLine(anOwner, theError) &&
1375          arePointsNotSeparated(anOwner, theArguments, theError);
1376 }
1377
1378 static std::shared_ptr<GeomAPI_Pnt2d> toPoint(const FeaturePtr& theMacroCircle,
1379                                               const std::string& thePointAttrName,
1380                                               const std::string& theRefPointAttrName)
1381 {
1382   AttributePoint2DPtr aPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1383       theMacroCircle->attribute(thePointAttrName));
1384   AttributeRefAttrPtr aRefAttr = theMacroCircle->refattr(theRefPointAttrName);
1385
1386   std::shared_ptr<GeomAPI_Pnt2d> aPoint = aPointAttr->pnt();
1387   if (aRefAttr) {
1388     if (aRefAttr->isObject()) {
1389       // project a point onto selected feature
1390       std::shared_ptr<SketchPlugin_Feature> aFeature =
1391           std::dynamic_pointer_cast<SketchPlugin_Feature>(
1392           ModelAPI_Feature::feature(aRefAttr->object()));
1393       if (aFeature) {
1394         SketchPlugin_Sketch* aSketch = aFeature->sketch();
1395         std::shared_ptr<GeomAPI_Edge> anEdge =
1396             std::dynamic_pointer_cast<GeomAPI_Edge>(aFeature->lastResult()->shape());
1397         if (anEdge) {
1398           std::shared_ptr<GeomAPI_Pnt> aPoint3D = aSketch->to3D(aPoint->x(), aPoint->y());
1399           if (anEdge->isLine())
1400             aPoint3D = anEdge->line()->project(aPoint3D);
1401           else if (anEdge->isCircle())
1402             aPoint3D = anEdge->circle()->project(aPoint3D);
1403           if(aPoint3D)
1404             aPoint = aSketch->to2D(aPoint3D);
1405         }
1406       }
1407     } else {
1408       AttributePoint2DPtr anOtherPoint =
1409           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
1410       if (anOtherPoint)
1411         aPoint = anOtherPoint->pnt(); // the reference point is much more precise, use it
1412     }
1413   }
1414
1415   return aPoint;
1416 }
1417
1418 static void threePointsOfFeature(const FeaturePtr& theMacroFeature,
1419                                  std::shared_ptr<GeomAPI_Pnt2d> thePoints[3])
1420 {
1421   if (theMacroFeature->getKind() == SketchPlugin_MacroCircle::ID()) {
1422     thePoints[0] = toPoint(theMacroFeature,
1423           SketchPlugin_MacroCircle::FIRST_POINT_ID(),
1424           SketchPlugin_MacroCircle::FIRST_POINT_REF_ID());
1425     thePoints[1] = toPoint(theMacroFeature,
1426           SketchPlugin_MacroCircle::SECOND_POINT_ID(),
1427           SketchPlugin_MacroCircle::SECOND_POINT_REF_ID());
1428     thePoints[2] = toPoint(theMacroFeature,
1429           SketchPlugin_MacroCircle::THIRD_POINT_ID(),
1430           SketchPlugin_MacroCircle::THIRD_POINT_REF_ID());
1431   } else if (theMacroFeature->getKind() == SketchPlugin_MacroArc::ID()) {
1432     thePoints[0] = toPoint(theMacroFeature,
1433           SketchPlugin_MacroArc::START_POINT_2_ID(),
1434           SketchPlugin_MacroArc::START_POINT_REF_ID());
1435     thePoints[1] = toPoint(theMacroFeature,
1436           SketchPlugin_MacroArc::END_POINT_2_ID(),
1437           SketchPlugin_MacroArc::END_POINT_REF_ID());
1438     thePoints[2] = toPoint(theMacroFeature,
1439           SketchPlugin_MacroArc::PASSED_POINT_ID(),
1440           SketchPlugin_MacroArc::PASSED_POINT_REF_ID());
1441   }
1442 }
1443
1444 static bool isPointsOnLine(const std::shared_ptr<GeomAPI_Pnt2d>& thePoint1,
1445                            const std::shared_ptr<GeomAPI_Pnt2d>& thePoint2,
1446                            const std::shared_ptr<GeomAPI_Pnt2d>& thePoint3)
1447 {
1448   static const double aTolerance = 1.e-7;
1449   if (thePoint1->distance(thePoint2) < aTolerance ||
1450       thePoint1->distance(thePoint3) < aTolerance)
1451     return true;
1452
1453   std::shared_ptr<GeomAPI_Dir2d> aDirP1P2(new GeomAPI_Dir2d(thePoint2->x() - thePoint1->x(),
1454                                                             thePoint2->y() - thePoint1->y()));
1455   std::shared_ptr<GeomAPI_Dir2d> aDirP1P3(new GeomAPI_Dir2d(thePoint3->x() - thePoint1->x(),
1456                                                             thePoint3->y() - thePoint1->y()));
1457   return fabs(aDirP1P2->cross(aDirP1P3)) < aTolerance;
1458 }
1459
1460 static bool isOnSameSide(const std::shared_ptr<GeomAPI_Lin>& theLine,
1461                          const std::shared_ptr<GeomAPI_Pnt>& thePoint1,
1462                          const std::shared_ptr<GeomAPI_Pnt>& thePoint2)
1463 {
1464   static const double aTolerance = 1.e-7;
1465   std::shared_ptr<GeomAPI_Dir> aLineDir = theLine->direction();
1466   std::shared_ptr<GeomAPI_XYZ> aLineLoc = theLine->location()->xyz();
1467
1468   std::shared_ptr<GeomAPI_XYZ> aVec1 = thePoint1->xyz()->decreased(aLineLoc);
1469   // the first point is on the line
1470   if (aVec1->squareModulus() < aTolerance * aTolerance)
1471     return false;
1472   std::shared_ptr<GeomAPI_Dir> aDirP1L(new GeomAPI_Dir(aVec1));
1473   std::shared_ptr<GeomAPI_XYZ> aVec2 = thePoint2->xyz()->decreased(aLineLoc);
1474   // the second point is on the line
1475   if (aVec2->squareModulus() < aTolerance * aTolerance)
1476     return false;
1477   std::shared_ptr<GeomAPI_Dir> aDirP2L(new GeomAPI_Dir(aVec2));
1478
1479   return aLineDir->cross(aDirP1L)->dot(aLineDir->cross(aDirP2L)) > -aTolerance;
1480 }
1481
1482 static bool isOnSameSide(const std::shared_ptr<GeomAPI_Circ>& theCircle,
1483                          const std::shared_ptr<GeomAPI_Pnt>&  thePoint1,
1484                          const std::shared_ptr<GeomAPI_Pnt>&  thePoint2)
1485 {
1486   static const double aTolerance = 1.e-7;
1487   std::shared_ptr<GeomAPI_Pnt> aCenter = theCircle->center();
1488   double aDistP1C = thePoint1->distance(aCenter);
1489   double aDistP2C = thePoint2->distance(aCenter);
1490   return (aDistP1C - theCircle->radius()) * (aDistP2C - theCircle->radius()) > -aTolerance;
1491 }
1492
1493 bool SketchPlugin_ThirdPointValidator::arePointsNotOnLine(
1494     const FeaturePtr& theMacroFeature,
1495     Events_InfoMessage& theError) const
1496 {
1497   static const std::string aErrorPointsOnLine(
1498       "Selected points are on the same line");
1499
1500   std::shared_ptr<GeomAPI_Pnt2d> aPoints[3];
1501   threePointsOfFeature(theMacroFeature, aPoints);
1502
1503   if (isPointsOnLine(aPoints[0], aPoints[1], aPoints[2])) {
1504     theError = aErrorPointsOnLine;
1505     return false;
1506   }
1507   return true;
1508 }
1509
1510 bool SketchPlugin_ThirdPointValidator::arePointsNotSeparated(
1511     const FeaturePtr& theMacroFeature,
1512     const std::list<std::string>& theArguments,
1513     Events_InfoMessage& theError) const
1514 {
1515   static const std::string aErrorPointsApart(
1516       "Selected entity is lying between first two points");
1517
1518   AttributeRefAttrPtr aThirdPointRef = theMacroFeature->refattr(theArguments.front());
1519   FeaturePtr aRefByThird;
1520   if (aThirdPointRef->isObject())
1521     aRefByThird = ModelAPI_Feature::feature(aThirdPointRef->object());
1522   if (!aRefByThird)
1523     return true;
1524
1525   std::shared_ptr<GeomAPI_Pnt2d> aPoints[3];
1526   threePointsOfFeature(theMacroFeature, aPoints);
1527
1528   std::shared_ptr<GeomAPI_Edge> aThirdShape =
1529       std::dynamic_pointer_cast<GeomAPI_Edge>(aRefByThird->lastResult()->shape());
1530   if (!aThirdShape)
1531     return true;
1532
1533   SketchPlugin_Sketch* aSketch =
1534       std::dynamic_pointer_cast<SketchPlugin_Feature>(theMacroFeature)->sketch();
1535   std::shared_ptr<GeomAPI_Pnt> aFirstPnt3D = aSketch->to3D(aPoints[0]->x(), aPoints[0]->y());
1536   std::shared_ptr<GeomAPI_Pnt> aSecondPnt3D = aSketch->to3D(aPoints[1]->x(), aPoints[1]->y());
1537
1538   bool isOk = true;
1539   if (aThirdShape->isLine())
1540     isOk = isOnSameSide(aThirdShape->line(), aFirstPnt3D, aSecondPnt3D);
1541   else if (aThirdShape->isCircle() || aThirdShape->isArc())
1542     isOk = isOnSameSide(aThirdShape->circle(), aFirstPnt3D, aSecondPnt3D);
1543
1544   if (!isOk)
1545     theError = aErrorPointsApart;
1546   return isOk;
1547 }
1548
1549 bool SketchPlugin_ArcEndPointValidator::isValid(
1550     const AttributePtr& theAttribute,
1551     const std::list<std::string>& theArguments,
1552     Events_InfoMessage& theError) const
1553 {
1554   FeaturePtr aFeature = ModelAPI_Feature::feature(theAttribute->owner());
1555   AttributeRefAttrPtr anEndPointRef = aFeature->refattr(theArguments.front());
1556
1557   if(!anEndPointRef.get()) {
1558     return true;
1559   }
1560
1561   ObjectPtr anObject = anEndPointRef->object();
1562   AttributePtr anAttr = anEndPointRef->attr();
1563   if(!anObject.get() && !anAttr.get()) {
1564     return true;
1565   }
1566
1567   if(anEndPointRef->attr().get()) {
1568     return false;
1569   }
1570
1571   ResultPtr aResult = std::dynamic_pointer_cast<ModelAPI_Result>(anObject);
1572   if(aResult.get()) {
1573     GeomShapePtr aShape = aResult->shape();
1574     if(aShape.get() && aShape->isVertex()) {
1575       return false;
1576     }
1577   }
1578
1579   aFeature = ModelAPI_Feature::feature(anObject);
1580   if(aFeature.get()) {
1581     if(aFeature->getKind() == SketchPlugin_Point::ID()) {
1582       return false;
1583     }
1584   }
1585
1586   return true;
1587 }
1588
1589 static GeomShapePtr toInfiniteEdge(const GeomShapePtr theShape)
1590 {
1591   if(!theShape.get()) {
1592     return theShape;
1593   }
1594
1595   if(!theShape->isEdge()) {
1596     return theShape;
1597   }
1598
1599   std::shared_ptr<GeomAPI_Edge> anEdge(new GeomAPI_Edge(theShape));
1600
1601   if(!anEdge.get()) {
1602     return theShape;
1603   }
1604
1605   if(anEdge->isLine()) {
1606     std::shared_ptr<GeomAPI_Lin> aLine = anEdge->line();
1607     GeomShapePtr aShape = GeomAlgoAPI_EdgeBuilder::line(aLine);
1608     return aShape;
1609   }
1610
1611   if(anEdge->isCircle() || anEdge->isArc()) {
1612     std::shared_ptr<GeomAPI_Circ> aCircle = anEdge->circle();
1613     GeomShapePtr aShape = GeomAlgoAPI_EdgeBuilder::lineCircle(aCircle);
1614     return aShape;
1615   }
1616
1617   return theShape;
1618 }
1619
1620 bool SketchPlugin_ArcEndPointIntersectionValidator::isValid(
1621     const AttributePtr& theAttribute,
1622     const std::list<std::string>& theArguments,
1623     Events_InfoMessage& theError) const
1624 {
1625   std::shared_ptr<SketchPlugin_MacroArc> anArcFeature =
1626       std::dynamic_pointer_cast<SketchPlugin_MacroArc>(theAttribute->owner());
1627   AttributeRefAttrPtr anEndPointRef = anArcFeature->refattr(theArguments.front());
1628
1629   if(!anEndPointRef.get()) {
1630     return true;
1631   }
1632
1633   GeomShapePtr anArcShape = toInfiniteEdge(anArcFeature->getArcShape(false));
1634
1635   if(!anArcShape.get() || anArcShape->isNull()) {
1636     return true;
1637   }
1638
1639   ObjectPtr anObject = anEndPointRef->object();
1640   AttributePtr anAttr = anEndPointRef->attr();
1641   if(!anObject.get() && !anAttr.get()) {
1642     return true;
1643   }
1644
1645   ResultPtr aResult = std::dynamic_pointer_cast<ModelAPI_Result>(anObject);
1646   if(aResult.get()) {
1647     GeomShapePtr aShape = aResult->shape();
1648     if (!aShape->isEdge())
1649       return true;
1650     aShape = toInfiniteEdge(aShape);
1651     if(aShape.get() && !aShape->isNull()) {
1652       if(anArcShape->isIntersect(aShape)) {
1653         return true;
1654       }
1655     }
1656   }
1657
1658   FeaturePtr aSelectedFeature = ModelAPI_Feature::feature(anObject);
1659   if(aSelectedFeature.get()) {
1660     std::list<ResultPtr> aResults = aSelectedFeature->results();
1661     for(std::list<ResultPtr>::const_iterator anIt = aResults.cbegin();
1662         anIt != aResults.cend();
1663         ++anIt)
1664     {
1665       GeomShapePtr aShape = (*anIt)->shape();
1666       if (!aShape->isEdge())
1667         return true;
1668       aShape = toInfiniteEdge(aShape);
1669       if(aShape.get() && !aShape->isNull()) {
1670         if(anArcShape->isIntersect(aShape)) {
1671           return true;
1672         }
1673       }
1674     }
1675   }
1676
1677   return false;
1678 }
1679
1680 bool SketchPlugin_HasNoConstraint::isValid(const AttributePtr& theAttribute,
1681                                            const std::list<std::string>& theArguments,
1682                                            Events_InfoMessage& theError) const
1683 {
1684   std::set<std::string> aFeatureKinds;
1685   for (std::list<std::string>::const_iterator anArgIt = theArguments.begin();
1686        anArgIt != theArguments.end(); anArgIt++) {
1687     aFeatureKinds.insert(*anArgIt);
1688   }
1689
1690   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
1691     theError = "The attribute with the %1 type is not processed";
1692     theError.arg(theAttribute->attributeType());
1693     return false;
1694   }
1695
1696   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
1697                                                                       (theAttribute);
1698   bool isObject = aRefAttr->isObject();
1699   if (!isObject) {
1700     theError = "It uses an empty object";
1701     return false;
1702   }
1703   ObjectPtr anObject = aRefAttr->object();
1704   FeaturePtr aFeature = ModelAPI_Feature::feature(anObject);
1705   if (!aFeature.get()) {
1706     theError = "The feature of the checked attribute is empty";
1707     return false;
1708   }
1709
1710   FeaturePtr aCurrentFeature = ModelAPI_Feature::feature(aRefAttr->owner());
1711
1712   std::set<AttributePtr> aRefsList = anObject->data()->refsToMe();
1713   std::set<AttributePtr>::const_iterator anIt = aRefsList.begin();
1714   for (; anIt != aRefsList.end(); anIt++) {
1715     FeaturePtr aRefFeature = ModelAPI_Feature::feature((*anIt)->owner());
1716     if (aRefFeature.get() && aCurrentFeature != aRefFeature &&
1717         aFeatureKinds.find(aRefFeature->getKind()) != aFeatureKinds.end())
1718       return false; // constraint is found, that means that the check is not valid
1719   }
1720   return true;
1721 }
1722
1723 bool SketchPlugin_ReplicationReferenceValidator::isValid(
1724     const AttributePtr& theAttribute,
1725     const std::list<std::string>& theArguments,
1726     Events_InfoMessage& theError) const
1727 {
1728   AttributeRefAttrPtr aRefAttr =
1729       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
1730   if (!aRefAttr)
1731   {
1732     theError = "Incorrect attribute";
1733     return false;
1734   }
1735
1736   ObjectPtr anOwner;
1737   if (aRefAttr->isObject())
1738     anOwner = aRefAttr->object();
1739   else
1740   {
1741     AttributePtr anAttr = aRefAttr->attr();
1742     anOwner = anAttr->owner();
1743   }
1744   FeaturePtr anAttrOwnerFeature = ModelAPI_Feature::feature(anOwner);
1745   if (!anAttrOwnerFeature)
1746     return true;
1747   AttributeBooleanPtr aCopyAttr = anAttrOwnerFeature->boolean(SketchPlugin_SketchEntity::COPY_ID());
1748   if (!aCopyAttr || !aCopyAttr->value())
1749     return true; // feature is not a copy, thus valid
1750
1751   // check the copy feature is already referred by the "Multi" feature
1752   FeaturePtr aMultiFeature = ModelAPI_Feature::feature(theAttribute->owner());
1753   AttributeRefListPtr aRefList = aMultiFeature->reflist(theArguments.front());
1754   for (int i = 0; i < aRefList->size(); ++i)
1755   {
1756     FeaturePtr aRefOwner = ModelAPI_Feature::feature(aRefList->object(i));
1757     if (aRefOwner == anAttrOwnerFeature)
1758     {
1759       theError = "Attribute refers to the object generated by this feature";
1760       return false;
1761     }
1762   }
1763
1764   return true;
1765 }
1766
1767 bool SketchPlugin_SketchFeatureValidator::isValid(const AttributePtr& theAttribute,
1768                                                   const std::list<std::string>& theArguments,
1769                                                   Events_InfoMessage& theError) const
1770 {
1771   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
1772     theError = "The attribute with the %1 type is not processed";
1773     theError.arg(theAttribute->attributeType());
1774     return false;
1775   }
1776
1777   // check the attribute refers to a sketch feature
1778   AttributeRefAttrPtr aRefAttr =
1779       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
1780   bool isSketchFeature = aRefAttr->isObject();
1781   if (isSketchFeature) {
1782     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->object());
1783     isSketchFeature = aFeature.get() != NULL;
1784     if (isSketchFeature) {
1785       std::shared_ptr<SketchPlugin_Feature> aSketchFeature =
1786           std::dynamic_pointer_cast<SketchPlugin_Feature>(aFeature);
1787       isSketchFeature = aSketchFeature.get() != NULL;
1788     }
1789   }
1790
1791   if (isSketchFeature)
1792     return true;
1793
1794   theError = "The object selected is not a sketch feature";
1795   return false;
1796 }
1797
1798 bool SketchPlugin_MultiRotationAngleValidator::isValid(const AttributePtr& theAttribute,
1799                                                        const std::list<std::string>& theArguments,
1800                                                        Events_InfoMessage& theError) const
1801 {
1802   if (theAttribute->attributeType() != ModelAPI_AttributeDouble::typeId()) {
1803     theError = "The attribute with the %1 type is not processed";
1804     theError.arg(theAttribute->attributeType());
1805     return false;
1806   }
1807
1808   AttributeDoublePtr anAngleAttr =
1809     std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(theAttribute);
1810
1811   FeaturePtr aMultiRotation = ModelAPI_Feature::feature(theAttribute->owner());
1812   AttributeStringPtr anAngleType =
1813       aMultiRotation->string(SketchPlugin_MultiRotation::ANGLE_TYPE());
1814   AttributeIntegerPtr aNbCopies =
1815       aMultiRotation->integer(SketchPlugin_MultiRotation::NUMBER_OF_OBJECTS_ID());
1816
1817   if (anAngleType->value() != "FullAngle")
1818   {
1819     double aFullAngleValue = anAngleAttr->value() * (aNbCopies->value() - 1);
1820     if (aFullAngleValue < -1.e-7 || aFullAngleValue > 359.9999999)
1821     {
1822       theError = "Rotation single angle should produce full angle less than 360 degree";
1823       return false;
1824     }
1825   }
1826   else
1827   {
1828     double aFullAngleValue = anAngleAttr->value();
1829     if (aFullAngleValue < -1.e-7 || aFullAngleValue > 360.0000001)
1830     {
1831       theError = "Rotation full angle should be in range [0, 360]";
1832       return false;
1833     }
1834   }
1835
1836   return true;
1837 }
1838
1839 bool SketchPlugin_BSplineValidator::isValid(const AttributePtr& theAttribute,
1840                                             const std::list<std::string>& theArguments,
1841                                             Events_InfoMessage& theError) const
1842 {
1843   AttributePoint2DArrayPtr aPolesArray =
1844       std::dynamic_pointer_cast<GeomDataAPI_Point2DArray>(theAttribute);
1845   if (!aPolesArray)
1846     return false;
1847
1848   if (aPolesArray->size() < 2) {
1849     theError = "Number of B-spline poles should be 2 or more";
1850     return false;
1851   }
1852
1853   return true;
1854 }