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_CurveFitting.h"
  35 #include "SketchPlugin_Line.h"
  36 #include "SketchPlugin_MacroArc.h"
  37 #include "SketchPlugin_MacroCircle.h"
  38 #include "SketchPlugin_MultiRotation.h"
  39 #include "SketchPlugin_Point.h"
  40 #include "SketchPlugin_Sketch.h"
  41 #include "SketchPlugin_Trim.h"
  42 #include "SketchPlugin_Tools.h"
  43
  44 #include "SketcherPrs_Tools.h"
  45
  46 #include <Events_InfoMessage.h>
  47
  48 #include <ModelAPI_Data.h>
  49 #include <ModelAPI_Validator.h>
  50 #include <ModelAPI_AttributeDouble.h>
  51 #include <ModelAPI_AttributeInteger.h>
  52 #include <ModelAPI_AttributeRefAttr.h>
  53 #include <ModelAPI_AttributeRefAttrList.h>
  54 #include <ModelAPI_AttributeRefList.h>
  55 #include <ModelAPI_AttributeSelectionList.h>
  56 #include <ModelAPI_AttributeString.h>
  57 #include <ModelAPI_Session.h>
  58 #include <ModelAPI_Tools.h>
  59 #include <ModelAPI_ResultConstruction.h>
  60
  61 #include <ModelGeomAlgo_Point2D.h>
  62 #include <ModelGeomAlgo_Shape.h>
  63
  64 #include <GeomAlgoAPI_EdgeBuilder.h>
  65 #include <GeomAlgoAPI_ShapeTools.h>
  66
  67 #include <GeomAPI_Circ.h>
  68 #include <GeomAPI_Dir2d.h>
  69 #include <GeomAPI_Ellipse.h>
  70 #include <GeomAPI_Lin.h>
  71 #include <GeomAPI_Edge.h>
  72 #include <GeomAPI_Vertex.h>
  73
  74 #include <GeomDataAPI_Point2D.h>
  75 #include <GeomDataAPI_Point2DArray.h>
  76
  77 #include <algorithm>
  78 #include <cmath>
  79
  80 const double tolerance = 1.e-7;
  81
  82 static bool isSpline(FeaturePtr theFeature)
  83 {
  84   return theFeature && (theFeature->getKind() == SketchPlugin_BSpline::ID() ||
  85                         theFeature->getKind() == SketchPlugin_BSplinePeriodic::ID());
  86 }
  87
  88
  89 bool SketchPlugin_DistanceAttrValidator::isValid(const AttributePtr& theAttribute,
  90                                                  const std::list<std::string>& theArguments,
  91                                                  Events_InfoMessage& theError) const
  92 {
  93   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
  94     theError = "The attribute with the %1 type is not processed";
  95     theError.arg(theAttribute->attributeType());
  96     return false;
  97   }
  98
  99   // there is a check whether the feature contains a point and a linear edge or two point values
 100   std::string aParamA = theArguments.front();
 101   SessionPtr aMgr = ModelAPI_Session::get();
 102   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 103
 104   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
 105                                                                       (theAttribute);
 106   bool isObject = aRefAttr->isObject();
 107   if (!isObject) {
 108     // an attribute is a point. A point value is valid always for the distance
 109     return true;
 110   } else {
 111     // 1. check whether the references object is a linear
 112     ObjectPtr anObject = aRefAttr->object();
 113
 114     const ModelAPI_AttributeValidator* aShapeValidator =
 115       dynamic_cast<const ModelAPI_AttributeValidator*>(
 116       aFactory->validator("GeomValidators_ShapeType"));
 117     std::list<std::string> anArguments;
 118     anArguments.push_back("circle");
 119     Events_InfoMessage aCircleError;
 120     bool aShapeValid = aShapeValidator->isValid(aRefAttr, anArguments, aCircleError);
 121     // the circle line is not a valid case
 122     if (aShapeValid) {
 123       theError = "Circle can not be used in distance constraint";
 124       return false;
 125     }
 126
 127     anArguments.clear();
 128     anArguments.push_back("line");
 129     Events_InfoMessage aLineError;
 130     aShapeValid = aShapeValidator->isValid(aRefAttr, anArguments, aLineError);
 131     // if the attribute value is not a line, that means it is a vertex. A vertex is always valid
 132     if (aShapeValid) {
 133       FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 134       // If it is a line then we have to check that first attribute id not a line
 135       std::shared_ptr<SketchPlugin_Feature> aSFeature =
 136         std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
 137       SketchPlugin_Sketch* aSketch = aSFeature->sketch();
 138       std::shared_ptr<GeomAPI_Ax3> aPlane = SketchPlugin_Sketch::plane(aSketch);
 139       std::shared_ptr<GeomDataAPI_Point2D> aPoint = SketcherPrs_Tools::getFeaturePoint(
 140         aFeature->data(), aParamA, aPlane);
 141       if (!aPoint.get()) {
 142         theError = "One of parameters of distance constraint should be a point";
 143         return false;
 144       }
 145     }
 146   }
 147   return true;
 148 }
 149
 150 bool SketchPlugin_TangentAttrValidator::isValid(const AttributePtr& theAttribute,
 151                                                 const std::list<std::string>& theArguments,
 152                                                 Events_InfoMessage& theError) const
 153 {
 154   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 155     theError = "The attribute with the %1 type is not processed";
 156     theError.arg(theAttribute->attributeType());
 157     return false;
 158   }
 159
 160   // there is a check whether the feature contains a point and a linear edge or two point values
 161   std::string aParamA = theArguments.front();
 162   SessionPtr aMgr = ModelAPI_Session::get();
 163   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 164
 165   FeaturePtr anAttributeFeature =
 166     std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 167   AttributeRefAttrPtr aRefAttr =
 168     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 169
 170   bool isObject = aRefAttr->isObject();
 171   ObjectPtr anObject = aRefAttr->object();
 172   if (!isObject || !anObject.get()) {
 173     theError = "It uses an empty object";
 174     return false;
 175   }
 176
 177   FeaturePtr aRefFea = ModelAPI_Feature::feature(anObject);
 178
 179   AttributeRefAttrPtr aOtherAttr = anAttributeFeature->data()->refattr(aParamA);
 180   ObjectPtr aOtherObject = aOtherAttr->object();
 181   FeaturePtr aOtherFea = ModelAPI_Feature::feature(aOtherObject);
 182   if (!aOtherFea)
 183     return true;
 184
 185   if (aRefFea->getKind() == SketchPlugin_Line::ID() &&
 186       aOtherFea->getKind() == SketchPlugin_Line::ID()) {
 187     theError = "Two segments cannot be tangent";
 188     return false;
 189   }
 190   else if (isSpline(aRefFea) && isSpline(aOtherFea)) {
 191     theError = "Two B-splines cannot be tangent";
 192     return false;
 193   }
 194
 195   bool isValid = true;
 196   bool hasSpline = isSpline(aRefFea);
 197   if (!hasSpline && isSpline(aOtherFea)) {
 198     hasSpline = true;
 199     std::swap(aRefFea, aOtherFea);
 200   }
 201   if (hasSpline) {
 202     auto isApplicableCoincidence = [](FeaturePtr theFeature, const std::string& theAttrName) {
 203       AttributeRefAttrPtr aRefAttr = theFeature->refattr(theAttrName);
 204       if (aRefAttr->isObject())
 205         return false;
 206       AttributePtr anAttr = aRefAttr->attr();
 207       FeaturePtr anOwner = ModelAPI_Feature::feature(anAttr->owner());
 208       AttributePoint2DPtr aPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anAttr);
 209       if (aPointAttr) {
 210         return anOwner->getKind() == SketchPlugin_BSpline::ID() &&
 211               (aPointAttr->id() == SketchPlugin_BSpline::START_ID() ||
 212                aPointAttr->id() == SketchPlugin_BSpline::END_ID());
 213       }
 214
 215       AttributePoint2DArrayPtr aPntArray =
 216           std::dynamic_pointer_cast<GeomDataAPI_Point2DArray>(anAttr);
 217       if (aPntArray && anOwner->getKind() == SketchPlugin_BSpline::ID()) {
 218         // check index of the pole
 219         AttributeIntegerPtr anIndex = theAttrName == SketchPlugin_Constraint::ENTITY_A() ?
 220             theFeature->integer(SketchPlugin_ConstraintCoincidenceInternal::INDEX_ENTITY_A()) :
 221             theFeature->integer(SketchPlugin_ConstraintCoincidenceInternal::INDEX_ENTITY_B());
 222         return anIndex && (anIndex->value() == 0 || anIndex->value() == aPntArray->size() - 1);
 223       }
 224       return false;
 225     };
 226
 227     isValid = false;
 228     AttributePoint2DArrayPtr aBSplinePoles = std::dynamic_pointer_cast<GeomDataAPI_Point2DArray>(
 229         aRefFea->attribute(SketchPlugin_BSplineBase::POLES_ID()));
 230     // additional check the B-spline edge and the other edge have a coincident boundary point
 231     std::set<FeaturePtr> aCoincidences = SketchPlugin_Tools::findCoincidentConstraints(aRefFea);
 232     for (std::set<FeaturePtr>::iterator anIt = aCoincidences.begin();
 233          anIt != aCoincidences.end() && !isValid; ++anIt) {
 234       std::set<FeaturePtr> aCoinc;
 235       if (isApplicableCoincidence(*anIt, SketchPlugin_Constraint::ENTITY_A()))
 236         SketchPlugin_Tools::findCoincidences(*anIt, SketchPlugin_Constraint::ENTITY_B(),
 237                                              aCoinc, true);
 238       else if (isApplicableCoincidence(*anIt, SketchPlugin_Constraint::ENTITY_B()))
 239         SketchPlugin_Tools::findCoincidences(*anIt, SketchPlugin_Constraint::ENTITY_A(),
 240                                              aCoinc, true);
 241
 242       isValid = aCoinc.find(aOtherFea) != aCoinc.end();
 243     }
 244   }
 245
 246   return isValid;
 247 }
 248
 249 bool SketchPlugin_PerpendicularAttrValidator::isValid(const AttributePtr& theAttribute,
 250                                                       const std::list<std::string>& theArguments,
 251                                                       Events_InfoMessage& theError) const
 252 {
 253   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 254     theError = "The attribute with the %1 type is not processed";
 255     theError.arg(theAttribute->attributeType());
 256     return false;
 257   }
 258
 259   std::string aParamA = theArguments.front();
 260   SessionPtr aMgr = ModelAPI_Session::get();
 261   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 262
 263   FeaturePtr anOwner = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 264   AttributeRefAttrPtr aRefAttr =
 265       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 266
 267   bool isObject = aRefAttr->isObject();
 268   ObjectPtr anObject = aRefAttr->object();
 269   if (isObject && anObject.get()) {
 270     FeaturePtr aRefFea = ModelAPI_Feature::feature(anObject);
 271
 272     AttributeRefAttrPtr aOtherAttr = anOwner->refattr(aParamA);
 273     ObjectPtr aOtherObject = aOtherAttr->object();
 274     FeaturePtr aOtherFea = ModelAPI_Feature::feature(aOtherObject);
 275
 276     // at least one feature should be a line
 277     if (aRefFea->getKind() != SketchPlugin_Line::ID() &&
 278         aOtherFea && aOtherFea->getKind() != SketchPlugin_Line::ID()) {
 279       theError = "At least one feature should be a line";
 280       return false;
 281     }
 282     else if (isSpline(aRefFea) || isSpline(aOtherFea)) {
 283       theError = "B-spline is not supported";
 284       return false;
 285     }
 286   }
 287   else {
 288     theError = "It uses an empty object";
 289     return false;
 290   }
 291
 292   return true;
 293 }
 294
 295 bool SketchPlugin_NotFixedValidator::isValid(const AttributePtr& theAttribute,
 296                                              const std::list<std::string>& theArguments,
 297                                              Events_InfoMessage& theError) const
 298 {
 299   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 300     theError = "The attribute with the %1 type is not processed";
 301     theError.arg(theAttribute->attributeType());
 302     return false;
 303   }
 304
 305   std::shared_ptr<SketchPlugin_Feature> aFeature =
 306       std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
 307   if (!aFeature)
 308     return true;
 309
 310   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 311
 312   SketchPlugin_Sketch* aSketch = aFeature->sketch();
 313   int aNbFeatures = aSketch->numberOfSubs();
 314   for (int anInd = 0; anInd < aNbFeatures; anInd++) {
 315     FeaturePtr aSubFeature = aSketch->subFeature(anInd);
 316     if (aSubFeature->getKind() != SketchPlugin_ConstraintRigid::ID() || aSubFeature == aFeature)
 317       continue;
 318     AttributeRefAttrPtr aRAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 319         aSubFeature->attribute(SketchPlugin_ConstraintRigid::ENTITY_A()));
 320     if (aRefAttr->isObject()) {
 321       if (aRefAttr->object() == aRAttr->object()) {
 322         ObjectPtr anObject = aRefAttr->object();
 323         std::wstring aName = anObject.get() ? anObject->data()->name() : L"";
 324         theError = "The object %1 has been already fixed.";
 325         theError.arg(aName);
 326         return false;
 327       }
 328     }
 329     else if (aRefAttr->attr() == aRAttr->attr()) {
 330       AttributePtr anAttribute = aRefAttr->attr();
 331       std::wstring aName = anAttribute.get() ? ModelAPI_Tools::toWString(anAttribute->id()) : L"";
 332       theError = "The attribute %1 has been already fixed.";
 333       theError.arg(aName);
 334       return false;
 335     }
 336   }
 337   return true;
 338 }
 339
 340 bool SketchPlugin_EqualAttrValidator::isValid(const AttributePtr& theAttribute,
 341                                               const std::list<std::string>& theArguments,
 342                                               Events_InfoMessage& theError) const
 343 {
 344   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 345     theError = "The attribute with the %1 type is not processed";
 346     theError.arg(theAttribute->attributeType());
 347     return false;
 348   }
 349
 350   std::string aParamA = theArguments.front();
 351   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 352   AttributeRefAttrPtr aRefAttr[2];
 353   aRefAttr[0] = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 354   aRefAttr[1] = aFeature->data()->refattr(aParamA);
 355
 356   if (!aRefAttr[0]->isObject() || !aRefAttr[1]->isObject()) {
 357     theError = "Attributes can not be used in equal constraint";
 358     return false;
 359   }
 360
 361   std::string aType[2];
 362   std::list<std::string> anArguments;
 363   for (int i = 0; i < 2; i++) {
 364     aFeature = ModelAPI_Feature::feature(aRefAttr[i]->object());
 365     if (!aFeature.get())
 366       return true;
 367
 368     aType[i] = aFeature->getKind();
 369     if (aFeature->getKind() != SketchPlugin_Line::ID() &&
 370         aFeature->getKind() != SketchPlugin_Circle::ID() &&
 371         aFeature->getKind() != SketchPlugin_Arc::ID() &&
 372         aFeature->getKind() != SketchPlugin_Ellipse::ID() &&
 373         aFeature->getKind() != SketchPlugin_EllipticArc::ID()) {
 374       theError = "The %1 feature is not supported by the Equal constraint.";
 375       theError.arg(aFeature->getKind());
 376       // wrong type of attribute
 377       return false;
 378     }
 379   }
 380
 381   bool isOk = aType[0] == aType[1];
 382   if (!isOk) {
 383     // circle and arc may be equal
 384     isOk = (aType[0] == SketchPlugin_Arc::ID() && aType[1] == SketchPlugin_Circle::ID())
 385         || (aType[0] == SketchPlugin_Circle::ID() && aType[1] == SketchPlugin_Arc::ID());
 386   }
 387   if (!isOk) {
 388     // ellipse and elliptic arc may be equal
 389     isOk = (aType[0] == SketchPlugin_EllipticArc::ID() && aType[1] == SketchPlugin_Ellipse::ID())
 390         || (aType[0] == SketchPlugin_Ellipse::ID() && aType[1] == SketchPlugin_EllipticArc::ID());
 391   }
 392   if (!isOk) {
 393     theError = "Features with kinds %1 and %2 can not be equal.";
 394     theError.arg(aType[0]).arg(aType[1]);
 395     return false;
 396   }
 397   return true;
 398 }
 399
 400 bool SketchPlugin_MirrorAttrValidator::isValid(const AttributePtr& theAttribute,
 401                                                const std::list<std::string>& theArguments,
 402                                                Events_InfoMessage& theError) const
 403 {
 404   if (theAttribute->attributeType() != ModelAPI_AttributeRefList::typeId()) {
 405     theError = "The attribute with the %1 type is not processed";
 406     theError.arg(theAttribute->attributeType());
 407     return false;
 408   }
 409
 410   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 411   AttributeRefListPtr aSelAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(theAttribute);
 412
 413   AttributeRefListPtr aRefListOfMirrored = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 414       aFeature->attribute(SketchPlugin_Constraint::ENTITY_C()));
 415   std::list<ObjectPtr> aMirroredObjects = aRefListOfMirrored->list();
 416
 417   for(int anInd = 0; anInd < aSelAttr->size(); anInd++) {
 418     ObjectPtr aSelObject = aSelAttr->object(anInd);
 419
 420     // B-splines are not supported in Mirror yet
 421     FeaturePtr aSelFeature = ModelAPI_Feature::feature(aSelObject);
 422     if (aSelFeature && (aSelFeature->getKind() == SketchPlugin_BSpline::ID() ||
 423         aSelFeature->getKind() == SketchPlugin_BSplinePeriodic::ID())) {
 424       theError = "Not supported";
 425       return false;
 426     }
 427
 428     std::wstring aName = aSelObject.get() ? aSelObject->data()->name() : L"";
 429     std::list<ObjectPtr>::iterator aMirIter = aMirroredObjects.begin();
 430     for (; aMirIter != aMirroredObjects.end(); aMirIter++)
 431       if (aSelObject == *aMirIter) {
 432         theError = "The object %1 is a result of mirror";
 433         theError.arg(aName);
 434         return false;
 435       }
 436   }
 437   return true;
 438 }
 439
 440 bool SketchPlugin_CoincidenceAttrValidator::isValid(const AttributePtr& theAttribute,
 441                                                     const std::list<std::string>& theArguments,
 442                                                     Events_InfoMessage& theError) const
 443 {
 444   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 445     theError = "The attribute with the %1 type is not processed";
 446     theError.arg(theAttribute->attributeType());
 447     return false;
 448   }
 449
 450   // there is a check whether the feature contains a point and a linear edge or two point values
 451   std::string aParamA = theArguments.front();
 452   SessionPtr aMgr = ModelAPI_Session::get();
 453   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 454
 455   FeaturePtr aConstraint = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 456   AttributeRefAttrPtr aRefAttrA = aConstraint->data()->refattr(aParamA);
 457   if (!aRefAttrA) {
 458     theError = "The %1 attribute should be %2";
 459     theError.arg(aParamA).arg(ModelAPI_AttributeRefAttr::typeId());
 460     return false;
 461   }
 462
 463   AttributeRefAttrPtr aRefAttrB =
 464     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 465
 466   // first attribute is a point, it may coincide with any object
 467   if (!aRefAttrA->isObject())
 468     return true;
 469   else {
 470     ObjectPtr anObject = aRefAttrA->object();
 471     if (!anObject.get()) {
 472       theError = "%1 attribute has an empty object";
 473       theError.arg(aParamA);
 474       return false;
 475     }
 476     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrA->object());
 477     if (!aFeature.get()) {
 478       theError = "%1 attribute has an empty feature";
 479       theError.arg(aParamA);
 480       return false;
 481     }
 482
 483     if (aFeature->getKind() == SketchPlugin_Point::ID())
 484       return true;
 485   }
 486
 487   // second attribute is a point, it may coincide with any object
 488   if (!aRefAttrB->isObject())
 489     return true;
 490   else {
 491     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrB->object());
 492     if (!aFeature) {
 493       theError = "%1 attribute has an empty object";
 494       theError.arg(theAttribute->id());
 495       return false;
 496     }
 497     if (aFeature->getKind() == SketchPlugin_Point::ID())
 498       return true;
 499   }
 500   theError = "There is no an attribute filled by a point";
 501   return false;
 502 }
 503
 504
 505 bool SketchPlugin_CopyValidator::isValid(const AttributePtr& theAttribute,
 506                                          const std::list<std::string>& theArguments,
 507                                          Events_InfoMessage& theError) const
 508 {
 509   if (theAttribute->attributeType() != ModelAPI_AttributeRefList::typeId()) {
 510     theError = "The attribute with the %1 type is not processed";
 511     theError.arg(theAttribute->attributeType());
 512     return false;
 513   }
 514
 515   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 516   AttributeRefListPtr aSelAttr =
 517     std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(theAttribute);
 518
 519   AttributeRefListPtr aRefListOfInitial = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 520       aFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
 521   AttributeRefListPtr aRefListOfCopied = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 522       aFeature->attribute(SketchPlugin_Constraint::ENTITY_B()));
 523   std::list<ObjectPtr> anInitialObjects = aRefListOfInitial->list();
 524   std::list<ObjectPtr> aCopiedObjects = aRefListOfCopied->list();
 525
 526   std::list<ObjectPtr>::iterator anObjIter;
 527   for(int anInd = 0; anInd < aSelAttr->size(); anInd++) {
 528     ObjectPtr aSelObject = aSelAttr->object(anInd);
 529     anObjIter = anInitialObjects.begin();
 530     for (; anObjIter != anInitialObjects.end(); anObjIter++)
 531       if (aSelObject == *anObjIter)
 532         break;
 533     if (anObjIter != anInitialObjects.end())
 534       continue;
 535
 536     // B-splines are not supported in Copying features
 537     FeaturePtr aSelFeature = ModelAPI_Feature::feature(aSelObject);
 538     if (aSelFeature && (aSelFeature->getKind() == SketchPlugin_BSpline::ID() ||
 539         aSelFeature->getKind() == SketchPlugin_BSplinePeriodic::ID())) {
 540       theError = "Not supported";
 541       return false;
 542     }
 543
 544     anObjIter = aCopiedObjects.begin();
 545     for (; anObjIter != aCopiedObjects.end(); anObjIter++)
 546       if (aSelObject == *anObjIter) {
 547         std::wstring aName = aSelObject.get() ? aSelObject->data()->name() : L"";
 548         theError = "The object %1 is a result of copy";
 549         theError.arg(aName);
 550         return false;
 551       }
 552   }
 553   return true;
 554 }
 555
 556 bool SketchPlugin_SolverErrorValidator::isValid(
 557   const std::shared_ptr<ModelAPI_Feature>& theFeature,
 558   const std::list<std::string>& theArguments,
 559   Events_InfoMessage& theError) const
 560 {
 561   AttributeStringPtr aAttributeString = theFeature->string(SketchPlugin_Sketch::SOLVER_ERROR());
 562
 563   if (!aAttributeString->value().empty()) {
 564     theError = aAttributeString->value();
 565     return false;
 566   }
 567
 568   return true;
 569 }
 570
 571 bool SketchPlugin_SolverErrorValidator::isNotObligatory(std::string theFeature,
 572                                                         std::string theAttribute)
 573 {
 574   return true;
 575 }
 576
 577 static bool hasSameTangentFeature(const std::set<AttributePtr>& theRefsList,
 578                                   const FeaturePtr theFeature)
 579 {
 580   for(std::set<AttributePtr>::const_iterator
 581       anIt = theRefsList.cbegin(); anIt != theRefsList.cend(); ++anIt) {
 582     std::shared_ptr<ModelAPI_Attribute> aAttr = (*anIt);
 583     FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aAttr->owner());
 584     if (!aFeature)
 585       continue;
 586     if (aFeature->getKind() == SketchPlugin_ConstraintTangent::ID()) {
 587       AttributeRefAttrPtr anAttrRefA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 588         aFeature->attribute(SketchPlugin_ConstraintTangent::ENTITY_A()));
 589       AttributeRefAttrPtr anAttrRefB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 590         aFeature->attribute(SketchPlugin_ConstraintTangent::ENTITY_B()));
 591       if(anAttrRefA.get()) {
 592         ResultPtr aResA = std::dynamic_pointer_cast<ModelAPI_Result>(anAttrRefA->object());
 593         if(aResA.get()) {
 594           DocumentPtr aDoc = aResA->document();
 595           if(aDoc.get()) {
 596             FeaturePtr aFeatureA = aDoc->feature(aResA);
 597             if(aFeatureA.get() && aFeatureA == theFeature) {
 598               return true;
 599             }
 600           }
 601         }
 602       }
 603       if(anAttrRefB.get()) {
 604         ResultPtr aResB = std::dynamic_pointer_cast<ModelAPI_Result>(anAttrRefB->object());
 605         if(aResB.get()) {
 606           DocumentPtr aDoc = aResB->document();
 607           if(aDoc.get()) {
 608             FeaturePtr aFeatureB = aDoc->feature(aResB);
 609             if(aFeatureB.get() && aFeatureB == theFeature) {
 610               return true;
 611             }
 612           }
 613         }
 614       }
 615     }
 616   }
 617   return false;
 618 }
 619
 620 static bool isPointPointCoincidence(const FeaturePtr& theCoincidence)
 621 {
 622   AttributeRefAttrPtr aRefAttr[2] = {
 623       theCoincidence->refattr(SketchPlugin_Constraint::ENTITY_A()),
 624       theCoincidence->refattr(SketchPlugin_Constraint::ENTITY_B())
 625   };
 626
 627   bool arePoints = true;
 628   for (int i = 0; i < 2 && arePoints; ++i) {
 629     if (aRefAttr[i]->isObject()) {
 630       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr[i]->object());
 631       arePoints = aFeature.get() && aFeature->getKind() == SketchPlugin_Point::ID();
 632     } else
 633       arePoints = aRefAttr[i]->attr().get() != NULL;
 634   }
 635   return arePoints;
 636 }
 637
 638 bool SketchPlugin_FilletVertexValidator::isValid(const AttributePtr& theAttribute,
 639                                                  const std::list<std::string>& theArguments,
 640                                                  Events_InfoMessage& theError) const
 641 {
 642   AttributeRefAttrPtr aPointRefAttr =
 643     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 644   if(!aPointRefAttr.get()) {
 645     theError = "Error: Point not selected.";
 646     return false;
 647   }
 648
 649   AttributePtr aPointAttribute = aPointRefAttr->attr();
 650   if (!aPointAttribute.get()) {
 651     theError = "Error: Bad point selected.";
 652     return false;
 653   }
 654   std::shared_ptr<GeomAPI_Pnt2d> aSelectedPnt =
 655     std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aPointAttribute)->pnt();
 656
 657   // Obtain constraint coincidence for the fillet point.
 658   const std::set<AttributePtr>& aRefsList = aPointAttribute->owner()->data()->refsToMe();
 659   FeaturePtr aConstraintCoincidence;
 660   for(std::set<AttributePtr>::const_iterator anIt = aRefsList.cbegin();
 661       anIt != aRefsList.cend(); ++anIt) {
 662     std::shared_ptr<ModelAPI_Attribute> aAttr = (*anIt);
 663     FeaturePtr aConstrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aAttr->owner());
 664     if (aConstrFeature->getKind() == SketchPlugin_ConstraintCoincidence::ID()) {
 665       if (!isPointPointCoincidence(aConstrFeature))
 666         continue;
 667
 668       AttributeRefAttrPtr anAttrRefA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 669         aConstrFeature->attribute(SketchPlugin_ConstraintCoincidence::ENTITY_A()));
 670       AttributeRefAttrPtr anAttrRefB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 671         aConstrFeature->attribute(SketchPlugin_ConstraintCoincidence::ENTITY_B()));
 672
 673       AttributePtr anAttrA = anAttrRefA->attr();
 674       if(aPointAttribute == anAttrA) {
 675         aConstraintCoincidence = aConstrFeature;
 676         break;
 677       }
 678
 679       AttributePtr anAttrB = anAttrRefB->attr();
 680       if(aPointAttribute == anAttrB) {
 681         aConstraintCoincidence = aConstrFeature;
 682         break;
 683       }
 684     }
 685   }
 686
 687   if(!aConstraintCoincidence.get()) {
 688     theError = "Error: one of the selected point does not have coincidence.";
 689     return false;
 690   }
 691
 692   // Get coincides from constraint.
 693   std::set<FeaturePtr> aCoinsides;
 694   SketchPlugin_Tools::findCoincidences(aConstraintCoincidence,
 695                                         SketchPlugin_ConstraintCoincidence::ENTITY_A(),
 696                                         aCoinsides,
 697                                         true);
 698   SketchPlugin_Tools::findCoincidences(aConstraintCoincidence,
 699                                         SketchPlugin_ConstraintCoincidence::ENTITY_B(),
 700                                         aCoinsides,
 701                                         true);
 702
 703   // Remove points and external lines from set of coincides.
 704   std::set<FeaturePtr> aNewSetOfCoincides;
 705   for(std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 706       anIt != aCoinsides.end(); ++anIt) {
 707     std::shared_ptr<SketchPlugin_SketchEntity> aSketchEntity =
 708       std::dynamic_pointer_cast<SketchPlugin_SketchEntity>(*anIt);
 709     if(aSketchEntity.get() && (aSketchEntity->isCopy() || aSketchEntity->isExternal())) {
 710       continue;
 711     }
 712     if((*anIt)->getKind() != SketchPlugin_Line::ID() &&
 713         (*anIt)->getKind() != SketchPlugin_Arc::ID()) {
 714           continue;
 715     }
 716     if((*anIt)->getKind() == SketchPlugin_Arc::ID()) {
 717       AttributePtr anArcCenter = (*anIt)->attribute(SketchPlugin_Arc::CENTER_ID());
 718       std::shared_ptr<GeomAPI_Pnt2d> anArcCenterPnt =
 719         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anArcCenter)->pnt();
 720       double aDistSelectedArcCenter = aSelectedPnt->distance(anArcCenterPnt);
 721       if(aDistSelectedArcCenter < tolerance) {
 722         continue;
 723       }
 724     }
 725     aNewSetOfCoincides.insert(*anIt);
 726   }
 727   aCoinsides = aNewSetOfCoincides;
 728
 729   // If we still have more than two coincides remove auxilary entities from set of coincides.
 730   if(aCoinsides.size() > 2) {
 731     aNewSetOfCoincides.clear();
 732     for(std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 733         anIt != aCoinsides.end(); ++anIt) {
 734       if(!(*anIt)->boolean(SketchPlugin_SketchEntity::AUXILIARY_ID())->value()) {
 735         aNewSetOfCoincides.insert(*anIt);
 736       }
 737     }
 738     aCoinsides = aNewSetOfCoincides;
 739   }
 740
 741   if(aCoinsides.size() != 2) {
 742     theError = "Error: One of the selected points does not have two suitable edges for fillet.";
 743     return false;
 744   }
 745
 746   // Check that selected edges don't have tangent constraint.
 747   std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 748   FeaturePtr aFirstFeature = *anIt++;
 749   FeaturePtr aSecondFeature = *anIt;
 750   const std::set<AttributePtr>& aFirstFeatureRefsList = aFirstFeature->data()->refsToMe();
 751   if(hasSameTangentFeature(aFirstFeatureRefsList, aSecondFeature)) {
 752     theError = "Error: Edges in selected point has tangent constraint.";
 753     return false;
 754   }
 755
 756   std::list<ResultPtr> aFirstResults = aFirstFeature->results();
 757   for(std::list<ResultPtr>::iterator aResIt = aFirstResults.begin();
 758       aResIt != aFirstResults.end(); ++aResIt) {
 759     ResultPtr aRes = *aResIt;
 760     const std::set<AttributePtr>& aResRefsList = aRes->data()->refsToMe();
 761     if(hasSameTangentFeature(aResRefsList, aSecondFeature)) {
 762       theError = "Error: Edges in selected point has tangent constraint.";
 763       return false;
 764     }
 765   }
 766
 767   // Check the features are not tangent
 768   std::shared_ptr<GeomAPI_Shape> aFirstShape = aFirstFeature->lastResult()->shape();
 769   std::shared_ptr<GeomAPI_Shape> aSecondShape = aSecondFeature->lastResult()->shape();
 770   if (!aFirstShape || !aFirstShape->isEdge() ||
 771       !aSecondShape || !aSecondShape->isEdge()) {
 772     theError = "Error: At least on of the features is not an edge";
 773     return false;
 774   }
 775
 776   std::shared_ptr<GeomAPI_Edge> anEdge1 = std::dynamic_pointer_cast<GeomAPI_Edge>(aFirstShape);
 777   std::shared_ptr<GeomAPI_Edge> anEdge2 = std::dynamic_pointer_cast<GeomAPI_Edge>(aSecondShape);
 778
 779   static const double TOL = 1.e-7;
 780   if (anEdge1->isLine() && anEdge2->isLine()) {
 781     // Check that lines not collinear
 782     std::shared_ptr<GeomAPI_Dir> aDir1 = anEdge1->line()->direction();
 783     std::shared_ptr<GeomAPI_Dir> aDir2 = anEdge2->line()->direction();
 784     double aCross = aDir1->cross(aDir2)->squareModulus();
 785     if (aCross < TOL * TOL)
 786       return false;
 787   } else if (anEdge1->isArc() && anEdge2->isArc()) {
 788     // check the circles are not tangent
 789     std::shared_ptr<GeomAPI_Circ> aCirc1 = anEdge1->circle();
 790     std::shared_ptr<GeomAPI_Circ> aCirc2 = anEdge2->circle();
 791     double aDistCC = aCirc1->center()->distance(aCirc2->center());
 792     double aRadSum = aCirc1->radius() + aCirc2->radius();
 793     double aRadDiff = fabs(aCirc1->radius() - aCirc2->radius());
 794     if (fabs(aDistCC - aRadSum) < TOL || fabs(aDistCC - aRadDiff) < TOL)
 795       return false;
 796   } else {
 797     // check whether line and arc are tangent
 798     std::shared_ptr<GeomAPI_Circ> aCirc;
 799     std::shared_ptr<GeomAPI_Lin> aLine;
 800     if (anEdge1->isLine()) {
 801       aLine = anEdge1->line();
 802       aCirc = anEdge2->circle();
 803     } else {
 804       aCirc = anEdge1->circle();
 805       aLine = anEdge2->line();
 806     }
 807
 808     double aDistCL = aLine->distance(aCirc->center());
 809     if (fabs(aDistCL - aCirc->radius()) < TOL)
 810       return false;
 811   }
 812
 813   return true;
 814 }
 815
 816 bool SketchPlugin_MiddlePointAttrValidator::isValid(const AttributePtr& theAttribute,
 817                                                     const std::list<std::string>& theArguments,
 818                                                     Events_InfoMessage& theError) const
 819 {
 820   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 821     theError = "The attribute with the %1 type is not processed";
 822     theError.arg(theAttribute->attributeType());
 823     return false;
 824   }
 825
 826   // there is a check whether the feature contains a point and a linear edge or two point values
 827   std::string aParamA = theArguments.front();
 828   SessionPtr aMgr = ModelAPI_Session::get();
 829   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 830
 831   FeaturePtr anAttributeFeature =
 832     std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 833   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 834   AttributeRefAttrPtr anOtherAttr = anAttributeFeature->data()->refattr(aParamA);
 835
 836   AttributeRefAttrPtr aRefAttrs[2] = {aRefAttr, anOtherAttr};
 837   int aNbPoints = 0;
 838   int aNbLines = 0;
 839   for (int i = 0; i < 2; ++i) {
 840     if (!aRefAttrs[i]->isObject())
 841       ++aNbPoints;
 842     else {
 843       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrs[i]->object());
 844       if (!aFeature) {
 845         if (aNbPoints + aNbLines != 0)
 846           return true;
 847         else continue;
 848       }
 849
 850       if (aFeature->getKind() == SketchPlugin_Point::ID())
 851         ++aNbPoints;
 852       else if (aFeature->getKind() == SketchPlugin_Line::ID() ||
 853                aFeature->getKind() == SketchPlugin_Arc::ID() ||
 854                aFeature->getKind() == SketchPlugin_EllipticArc::ID())
 855         ++aNbLines;
 856     }
 857   }
 858
 859   if (aNbPoints != 1 || aNbLines != 1) {
 860     theError = "Middle point constraint allows points and lines only";
 861     return false;
 862   }
 863   return true;
 864 }
 865
 866 bool SketchPlugin_ArcTangentPointValidator::isValid(const AttributePtr& theAttribute,
 867                                                     const std::list<std::string>& /*theArguments*/,
 868                                                     Events_InfoMessage& theError) const
 869 {
 870   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 871     theError = "The attribute with the %1 type is not processed";
 872     theError.arg(theAttribute->attributeType());
 873     return false;
 874   }
 875   FeaturePtr anOwner = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 876   AttributeStringPtr anArcTypeAttr = anOwner->string(SketchPlugin_MacroArc::ARC_TYPE());
 877   if (anArcTypeAttr && anArcTypeAttr->value() != SketchPlugin_MacroArc::ARC_TYPE_BY_TANGENT_EDGE())
 878     return true; // not applicable for non-tangent arcs
 879
 880   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 881   AttributePtr anAttr = aRefAttr->attr();
 882   if (!anAttr) {
 883     theError = "The attribute %1 should be a point";
 884     theError.arg(theAttribute->id());
 885     return false;
 886   }
 887
 888   FeaturePtr anAttrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(anAttr->owner());
 889   const std::string& aFeatureType = anAttrFeature->getKind();
 890   if (aFeatureType == SketchPlugin_Arc::ID()) {
 891     // selected point should not be a center of arc
 892     const std::string& aPntId = anAttr->id();
 893     if (aPntId != SketchPlugin_Arc::START_ID() && aPntId != SketchPlugin_Arc::END_ID()) {
 894       theError = "The attribute %1 is not supported";
 895       theError.arg(aPntId);
 896       return false;
 897     }
 898   }
 899   else if (aFeatureType == SketchPlugin_Line::ID()) {
 900     // selected point should be bound point of line
 901     const std::string& aPntId = anAttr->id();
 902     if (aPntId != SketchPlugin_Line::START_ID() && aPntId != SketchPlugin_Line::END_ID()) {
 903       theError = "The attribute %1 is not supported";
 904       theError.arg(aPntId);
 905       return false;
 906     }
 907   }
 908   else {
 909     theError = "Unable to build tangent arc on %1";
 910     theError.arg(anAttrFeature->getKind());
 911     return false;
 912   }
 913
 914   return true;
 915 }
 916
 917 bool SketchPlugin_ArcTransversalPointValidator::isValid(
 918     const AttributePtr& theAttribute,
 919     const std::list<std::string>& /*theArguments*/,
 920     Events_InfoMessage& theError) const
 921 {
 922   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 923     theError = "The attribute with the %1 type is not processed";
 924     theError.arg(theAttribute->attributeType());
 925     return false;
 926   }
 927   FeaturePtr anOwner = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 928   AttributeStringPtr anArcTypeAttr = anOwner->string(SketchPlugin_MacroArc::ARC_TYPE());
 929   if (anArcTypeAttr &&
 930       anArcTypeAttr->value() != SketchPlugin_MacroArc::ARC_TYPE_BY_TRANSVERSAL_LINE())
 931     return true; // not applicable for non-transversal arcs
 932
 933   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 934   AttributePtr anAttr = aRefAttr->attr();
 935   if (!anAttr) {
 936     theError = "The attribute %1 should be a point";
 937     theError.arg(theAttribute->id());
 938     return false;
 939   }
 940
 941   FeaturePtr anAttrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(anAttr->owner());
 942   const std::string& aFeatureType = anAttrFeature->getKind();
 943   if (aFeatureType == SketchPlugin_Line::ID()) {
 944     // selected point should be bound point of line
 945     const std::string& aPntId = anAttr->id();
 946     if (aPntId != SketchPlugin_Line::START_ID() && aPntId != SketchPlugin_Line::END_ID()) {
 947       theError = "The attribute %1 is not supported";
 948       theError.arg(aPntId);
 949       return false;
 950     }
 951   }
 952   else {
 953     theError = "Unable to build perpendicular arc on %1";
 954     theError.arg(anAttrFeature->getKind());
 955     return false;
 956   }
 957
 958   return true;
 959 }
 960
 961 bool SketchPlugin_IntersectionValidator::isValid(const AttributePtr& theAttribute,
 962                                                  const std::list<std::string>& theArguments,
 963                                                  Events_InfoMessage& theError) const
 964 {
 965   if (theAttribute->attributeType() != ModelAPI_AttributeSelection::typeId()) {
 966     theError = "The attribute with the %1 type is not processed";
 967     theError.arg(theAttribute->attributeType());
 968     return false;
 969   }
 970   AttributeSelectionPtr anExternalAttr =
 971       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(theAttribute);
 972   std::shared_ptr<GeomAPI_Edge> anEdge;
 973   if (anExternalAttr && anExternalAttr->value() && anExternalAttr->value()->isEdge()) {
 974     anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(anExternalAttr->value()));
 975   } else if(anExternalAttr->context() && anExternalAttr->context()->shape() &&
 976             anExternalAttr->context()->shape()->isEdge()) {
 977     anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(anExternalAttr->context()->shape()));
 978   }
 979
 980   if (!anEdge) {
 981     theError = "The attribute %1 should be an edge";
 982     theError.arg(theAttribute->id());
 983     return false;
 984   }
 985
 986   // find a sketch
 987   std::shared_ptr<SketchPlugin_Sketch> aSketch;
 988   std::set<AttributePtr> aRefs = anExternalAttr->owner()->data()->refsToMe();
 989   std::set<AttributePtr>::const_iterator anIt = aRefs.begin();
 990   for (; anIt != aRefs.end(); ++anIt) {
 991     CompositeFeaturePtr aComp =
 992         std::dynamic_pointer_cast<ModelAPI_CompositeFeature>((*anIt)->owner());
 993     if (aComp && aComp->getKind() == SketchPlugin_Sketch::ID()) {
 994       aSketch = std::dynamic_pointer_cast<SketchPlugin_Sketch>(aComp);
 995       break;
 996     }
 997   }
 998   if (!aSketch) {
 999     theError = "There is no sketch referring to the current feature";
1000     return false;
1001   }
1002
1003   // check the edge is intersected with sketch plane
1004   std::shared_ptr<GeomAPI_Pln> aPlane = aSketch->plane();
1005
1006   std::list<GeomPointPtr> anIntersectionsPoints;
1007   anEdge->intersectWithPlane(aPlane, anIntersectionsPoints);
1008   if (anIntersectionsPoints.empty()) {
1009     theError = "The edge is not intersected with sketch plane";
1010     return false;
1011   }
1012   return true;
1013 }
1014
1015 bool SketchPlugin_SplitValidator::isValid(const AttributePtr& theAttribute,
1016                                           const std::list<std::string>& theArguments,
1017                                           Events_InfoMessage& theError) const
1018 {
1019   bool aValid = false;
1020
1021   if (theAttribute->attributeType() != ModelAPI_AttributeReference::typeId()) {
1022     theError = "The attribute with the %1 type is not processed";
1023     theError.arg(theAttribute->attributeType());
1024     return aValid;
1025   }
1026   AttributeReferencePtr aFeatureAttr =
1027             std::dynamic_pointer_cast<ModelAPI_AttributeReference>(theAttribute);
1028   std::shared_ptr<SketchPlugin_Feature> aSplitFeature =
1029     std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
1030
1031   ObjectPtr anAttrObject = aFeatureAttr->value();
1032   if (!anAttrObject) {
1033     AttributePtr aPreviewAttr = aSplitFeature->attribute(SketchPlugin_Trim::PREVIEW_OBJECT());
1034     aFeatureAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(aPreviewAttr);
1035     anAttrObject = aFeatureAttr->value();
1036   }
1037
1038   FeaturePtr anAttrFeature = ModelAPI_Feature::feature(anAttrObject);
1039   if (!anAttrFeature)
1040     return aValid;
1041
1042   // B-splines are not supported by the Split yet
1043   if (anAttrFeature->getKind() == SketchPlugin_BSpline::ID() ||
1044       anAttrFeature->getKind() == SketchPlugin_BSplinePeriodic::ID()) {
1045     theError = "Not supported";
1046     return false;
1047   }
1048
1049   std::set<ResultPtr> anEdgeShapes;
1050   ModelGeomAlgo_Shape::shapesOfType(anAttrFeature, GeomAPI_Shape::EDGE, anEdgeShapes);
1051   if (anEdgeShapes.empty() || anEdgeShapes.size() > 1 /*there case has not existed yet*/)
1052     return aValid;
1053
1054   // coincidences to the feature
1055   std::set<std::shared_ptr<GeomDataAPI_Point2D> > aRefAttributes;
1056   ModelGeomAlgo_Point2D::getPointsOfReference(anAttrFeature,
1057                       SketchPlugin_ConstraintCoincidence::ID(),
1058                       aRefAttributes, SketchPlugin_Point::ID(), SketchPlugin_Point::COORD_ID());
1059
1060   GeomShapePtr anAttrShape = (*anEdgeShapes.begin())->shape();
1061   std::shared_ptr<SketchPlugin_Feature> aSFeature =
1062                                 std::dynamic_pointer_cast<SketchPlugin_Feature>(anAttrFeature);
1063   if (!aSFeature || aSFeature->isCopy())
1064     return false;
1065   SketchPlugin_Sketch* aSketch = aSFeature->sketch();
1066
1067   std::shared_ptr<ModelAPI_Data> aData = aSketch->data();
1068   std::shared_ptr<GeomDataAPI_Point> aC = std::dynamic_pointer_cast<GeomDataAPI_Point>(
1069       aData->attribute(SketchPlugin_Sketch::ORIGIN_ID()));
1070   std::shared_ptr<GeomDataAPI_Dir> aX = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
1071       aData->attribute(SketchPlugin_Sketch::DIRX_ID()));
1072   std::shared_ptr<GeomDataAPI_Dir> aNorm = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
1073       aData->attribute(SketchPlugin_Sketch::NORM_ID()));
1074   std::shared_ptr<GeomAPI_Dir> aDirY(new GeomAPI_Dir(aNorm->dir()->cross(aX->dir())));
1075
1076   typedef std::map<std::shared_ptr<GeomAPI_Pnt>,
1077                     std::pair<std::list<std::shared_ptr<GeomDataAPI_Point2D> >,
1078                               std::list<std::shared_ptr<ModelAPI_Object> > > > PointToRefsMap;
1079   PointToRefsMap aPointsInfo;
1080
1081   ModelGeomAlgo_Point2D::getPointsInsideShape(anAttrShape, aRefAttributes, aC->pnt(),
1082                                               aX->dir(), aDirY, aPointsInfo);
1083   int aCoincidentToFeature = (int)aPointsInfo.size();
1084   if (anAttrFeature->getKind() == SketchPlugin_Circle::ID() ||
1085       anAttrFeature->getKind() == SketchPlugin_Ellipse::ID())
1086     aValid = aCoincidentToFeature >= 2;
1087   else
1088     aValid = aCoincidentToFeature >= 1;
1089
1090   return aValid;
1091 }
1092
1093 bool SketchPlugin_TrimValidator::isValid(const AttributePtr& theAttribute,
1094                                          const std::list<std::string>& theArguments,
1095                                          Events_InfoMessage& theError) const
1096 {
1097   bool aValid = false;
1098
1099   if (theAttribute->attributeType() != ModelAPI_AttributeReference::typeId()) {
1100     theError = "The attribute with the %1 type is not processed";
1101     theError.arg(theAttribute->attributeType());
1102     return aValid;
1103   }
1104   AttributeReferencePtr aBaseObjectAttr =
1105             std::dynamic_pointer_cast<ModelAPI_AttributeReference>(theAttribute);
1106
1107   std::shared_ptr<SketchPlugin_Feature> aTrimFeature =
1108                  std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
1109
1110   ObjectPtr aBaseObject = aBaseObjectAttr->value();
1111   if (!aBaseObject) {
1112     AttributePtr aPreviewAttr = aTrimFeature->attribute(SketchPlugin_Trim::PREVIEW_OBJECT());
1113     aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(aPreviewAttr);
1114     aBaseObject = aBaseObjectAttr->value();
1115   }
1116
1117   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObject);
1118   if (!aBaseFeature)
1119     return aValid;
1120
1121   std::shared_ptr<SketchPlugin_Feature> aSketchFeature =
1122                                  std::dynamic_pointer_cast<SketchPlugin_Feature>(aBaseFeature);
1123   if (!aSketchFeature.get() || aSketchFeature->isCopy())
1124     return aValid;
1125
1126   // B-splines are not supported by the Trim yet
1127   if (aBaseFeature->getKind() == SketchPlugin_BSpline::ID() ||
1128       aBaseFeature->getKind() == SketchPlugin_BSplinePeriodic::ID()) {
1129     theError = "Not supported";
1130     return false;
1131   }
1132
1133   // point on feature
1134   AttributePoint2DPtr aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1135                        aTrimFeature->data()->attribute(SketchPlugin_Trim::PREVIEW_POINT()));
1136
1137   SketchPlugin_Sketch* aSketch = aTrimFeature->sketch();
1138
1139   std::shared_ptr<GeomAPI_Pnt2d> anAttributePnt2d = aPoint->pnt();
1140   std::shared_ptr<GeomAPI_Pnt> anAttributePnt = aSketch->to3D(anAttributePnt2d->x(),
1141                                                               anAttributePnt2d->y());
1142
1143   std::map<ObjectPtr, std::set<GeomShapePtr> > aCashedShapes;
1144   std::map<ObjectPtr, std::map<std::shared_ptr<GeomAPI_Pnt>,
1145            std::pair<std::list<std::shared_ptr<GeomDataAPI_Point2D> >,
1146                      std::list<std::shared_ptr<ModelAPI_Object> > > > > anObjectToPoints;
1147   SketchPlugin_SegmentationTools::fillObjectShapes(
1148       aTrimFeature.get(), aBaseObject, aCashedShapes, anObjectToPoints);
1149   const std::set<GeomShapePtr>& aShapes = aCashedShapes[aBaseObject];
1150
1151   return aShapes.size() > 1;
1152 }
1153
1154 bool SketchPlugin_ProjectionValidator::isValid(const AttributePtr& theAttribute,
1155                                                const std::list<std::string>& theArguments,
1156                                                Events_InfoMessage& theError) const
1157 {
1158   if (theAttribute->attributeType() != ModelAPI_AttributeSelection::typeId()) {
1159     theError = "The attribute with the %1 type is not processed";
1160     theError.arg(theAttribute->attributeType());
1161     return false;
1162   }
1163
1164   AttributeSelectionPtr aFeatureAttr =
1165       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(theAttribute);
1166   std::shared_ptr<GeomAPI_Edge> anEdge;
1167   std::shared_ptr<SketchPlugin_Feature> aSketchFeature;
1168   if (aFeatureAttr.get()) {
1169     GeomShapePtr aVal = aFeatureAttr->value();
1170     ResultPtr aRes = aFeatureAttr->context();
1171     if (aVal && aVal->isVertex())
1172       return true; // vertex is always could be projected
1173     if (aVal && aVal->isEdge()) {
1174       anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aFeatureAttr->value()));
1175     } else if(aRes && aRes->shape()) {
1176       if (aRes->shape()->isVertex())
1177         return true; // vertex is always could be projected
1178       else if (aRes->shape()->isEdge())
1179         anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aFeatureAttr->context()->shape()));
1180     }
1181
1182     // try to convert result to sketch feature
1183     if (aRes) {
1184       aSketchFeature =
1185         std::dynamic_pointer_cast<SketchPlugin_Feature>(ModelAPI_Feature::feature(aRes));
1186     }
1187   }
1188   if (!anEdge) {
1189     theError = "The attribute %1 should be an edge or vertex";
1190     theError.arg(theAttribute->id());
1191     return false;
1192   }
1193
1194   // find a sketch
1195   std::shared_ptr<SketchPlugin_Sketch> aSketch;
1196   std::set<AttributePtr> aRefs = theAttribute->owner()->data()->refsToMe();
1197   std::set<AttributePtr>::const_iterator anIt = aRefs.begin();
1198   for (; anIt != aRefs.end(); ++anIt) {
1199     CompositeFeaturePtr aComp =
1200         std::dynamic_pointer_cast<ModelAPI_CompositeFeature>((*anIt)->owner());
1201     if (aComp && aComp->getKind() == SketchPlugin_Sketch::ID()) {
1202       aSketch = std::dynamic_pointer_cast<SketchPlugin_Sketch>(aComp);
1203       break;
1204     }
1205   }
1206   if (!aSketch) {
1207     theError = "There is no sketch referring to the current feature";
1208     return false;
1209   }
1210   if (aSketchFeature && aSketch.get() == aSketchFeature->sketch()) {
1211     theError = "Unable to project feature from the same sketch";
1212     return false;
1213   }
1214
1215   std::shared_ptr<GeomAPI_Pln> aPlane = aSketch->plane();
1216   std::shared_ptr<GeomAPI_Dir> aNormal = aPlane->direction();
1217   std::shared_ptr<GeomAPI_Pnt> anOrigin = aPlane->location();
1218
1219   bool aValid = true;
1220   if (anEdge->isLine()) {
1221     std::shared_ptr<GeomAPI_Lin> aLine = anEdge->line();
1222     std::shared_ptr<GeomAPI_Dir> aLineDir = aLine->direction();
1223     double aDot = fabs(aNormal->dot(aLineDir));
1224     aValid = fabs(aDot - 1.0) >= tolerance * tolerance;
1225     if (!aValid)
1226       theError = "Error: Line is orthogonal to the sketch plane.";
1227   }
1228   else if (anEdge->isCircle() || anEdge->isArc()) {
1229     std::shared_ptr<GeomAPI_Circ> aCircle = anEdge->circle();
1230     std::shared_ptr<GeomAPI_Dir> aCircNormal = aCircle->normal();
1231     double aDot = fabs(aNormal->dot(aCircNormal));
1232     aValid = aDot >= tolerance * tolerance;
1233     if (!aValid)
1234       theError.arg(anEdge->isCircle() ? "Error: Circle is orthogonal to the sketch plane."
1235                                       : "Error: Arc is orthogonal to the sketch plane.");
1236   }
1237   else if (anEdge->isEllipse()) {
1238     std::shared_ptr<GeomAPI_Ellipse> anEllipse = anEdge->ellipse();
1239     std::shared_ptr<GeomAPI_Dir> anEllipseNormal = anEllipse->normal();
1240     double aDot = fabs(aNormal->dot(anEllipseNormal));
1241     aValid = fabs(aDot - 1.0) <= tolerance * tolerance;
1242     if (!aValid)
1243       theError.arg(anEdge->isClosed() ? "Error: Ellipse is orthogonal to the sketch plane."
1244                                       : "Error: Elliptic Arc is orthogonal to the sketch plane.");
1245   }
1246
1247   return aValid;
1248 }
1249
1250
1251 static std::set<FeaturePtr> common(const std::set<FeaturePtr>& theSet1,
1252                                    const std::set<FeaturePtr>& theSet2)
1253 {
1254   std::set<FeaturePtr> aCommon;
1255   if (theSet1.empty() || theSet2.empty())
1256     return aCommon;
1257
1258   std::set<FeaturePtr>::const_iterator anIt2 = theSet2.begin();
1259   for (; anIt2 != theSet2.end(); ++anIt2)
1260     if (theSet1.find(*anIt2) != theSet1.end())
1261       aCommon.insert(*anIt2);
1262   return aCommon;
1263 }
1264
1265 bool SketchPlugin_DifferentReferenceValidator::isValid(
1266     const AttributePtr& theAttribute,
1267     const std::list<std::string>& theArguments,
1268     Events_InfoMessage& theError) const
1269 {
1270   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1271
1272   int aNbFeaturesReferred = 0;
1273   int aNbAttributesReferred = 0;
1274   std::set<FeaturePtr> aCommonReferredFeatures;
1275
1276   // find all features referred by attributes listed in theArguments
1277   std::list<std::string>::const_iterator anArgIt = theArguments.begin();
1278   for (; anArgIt != theArguments.end(); ++anArgIt) {
1279     AttributeRefAttrPtr aRefAttr = anOwner->refattr(*anArgIt);
1280     if (!aRefAttr)
1281       continue;
1282
1283     std::set<FeaturePtr> aCoincidentFeatures;
1284     if (aRefAttr->isObject()) {
1285       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->object());
1286       if (aFeature) {
1287         aCoincidentFeatures.insert(aFeature);
1288         aNbFeaturesReferred += 1;
1289       }
1290     } else {
1291       AttributePoint2DPtr aPoint =
1292           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
1293       if (aPoint) {
1294         aCoincidentFeatures = SketchPlugin_Tools::findFeaturesCoincidentToPoint(aPoint);
1295         aNbAttributesReferred += 1;
1296       }
1297     }
1298
1299     if (aCommonReferredFeatures.empty())
1300       aCommonReferredFeatures = aCoincidentFeatures;
1301     else
1302       aCommonReferredFeatures = common(aCommonReferredFeatures, aCoincidentFeatures);
1303
1304     if (aCommonReferredFeatures.empty())
1305       return true;
1306   }
1307
1308   bool isOk = aNbFeaturesReferred < 1;
1309   if (aNbFeaturesReferred == 1) {
1310     if (aCommonReferredFeatures.size() == 1) {
1311       FeaturePtr aFeature = *aCommonReferredFeatures.begin();
1312       isOk = aNbAttributesReferred <= 1 ||
1313              aFeature->getKind() == SketchPlugin_Circle::ID() ||
1314              aFeature->getKind() == SketchPlugin_Arc::ID();
1315     } else
1316       isOk = false;
1317   }
1318
1319   if (!isOk)
1320     theError = "Attributes are referred to the same feature";
1321   return isOk;
1322 }
1323
1324 bool SketchPlugin_DifferentPointReferenceValidator::isValid(
1325     const AttributePtr& theAttribute,
1326     const std::list<std::string>& theArguments,
1327     Events_InfoMessage& theError) const
1328 {
1329   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1330   std::set<AttributePoint2DPtr> aReferredCoincidentPoints;
1331
1332   // find all points referred by attributes listed in theArguments
1333   bool hasRefsToPoints = false;
1334   std::list<std::string>::const_iterator anArgIt = theArguments.begin();
1335   for (; anArgIt != theArguments.end(); ++anArgIt) {
1336     AttributeRefAttrPtr aRefAttr = anOwner->refattr(*anArgIt);
1337     if (!aRefAttr)
1338       continue;
1339
1340     if (!aRefAttr->isObject()) {
1341       AttributePoint2DPtr aPoint =
1342           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
1343       if (aReferredCoincidentPoints.empty())
1344         aReferredCoincidentPoints = SketchPlugin_Tools::findPointsCoincidentToPoint(aPoint);
1345       else if (aReferredCoincidentPoints.find(aPoint) == aReferredCoincidentPoints.end())
1346         return true; // non-coincident point has been found
1347       else
1348         hasRefsToPoints = true;
1349     }
1350   }
1351
1352   if (hasRefsToPoints)
1353     theError = "Attributes are referred to the same point";
1354   return !hasRefsToPoints;
1355 }
1356
1357 bool SketchPlugin_CirclePassedPointValidator::isValid(
1358     const AttributePtr& theAttribute,
1359     const std::list<std::string>&,
1360     Events_InfoMessage& theError) const
1361 {
1362   static const std::string aErrorMessage(
1363       "Passed point refers to the same feature as a center point");
1364
1365   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1366
1367   AttributeRefAttrPtr aCenterRef =
1368       anOwner->refattr(SketchPlugin_MacroCircle::CENTER_POINT_REF_ID());
1369   AttributeRefAttrPtr aPassedRef =
1370       anOwner->refattr(SketchPlugin_MacroCircle::PASSED_POINT_REF_ID());
1371
1372   if (!aPassedRef->isObject())
1373     return true;
1374
1375   FeaturePtr aPassedFeature = ModelAPI_Feature::feature(aPassedRef->object());
1376   if (!aPassedFeature)
1377     return true;
1378
1379   if (aCenterRef->isObject()) {
1380     if (aCenterRef->object() == aPassedRef->object()) {
1381       theError = aErrorMessage;
1382       return false;
1383     }
1384   } else {
1385     AttributePoint2DPtr aCenterPoint =
1386         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aCenterRef->attr());
1387     if (aCenterPoint) {
1388       std::set<FeaturePtr> aCoincidentFeatures =
1389           SketchPlugin_Tools::findFeaturesCoincidentToPoint(aCenterPoint);
1390       // check one of coincident features is a feature referred by passed point
1391       std::set<FeaturePtr>::const_iterator anIt = aCoincidentFeatures.begin();
1392       for(; anIt != aCoincidentFeatures.end(); ++anIt)
1393         if (*anIt == aPassedFeature) {
1394           theError = aErrorMessage;
1395           return false;
1396         }
1397     }
1398   }
1399   return true;
1400 }
1401
1402 bool SketchPlugin_ThirdPointValidator::isValid(
1403     const AttributePtr& theAttribute,
1404     const std::list<std::string>& theArguments,
1405     Events_InfoMessage& theError) const
1406 {
1407   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1408   return arePointsNotOnLine(anOwner, theError) &&
1409          arePointsNotSeparated(anOwner, theArguments, theError);
1410 }
1411
1412 static std::shared_ptr<GeomAPI_Pnt2d> toPoint(const FeaturePtr& theMacroCircle,
1413                                               const std::string& thePointAttrName,
1414                                               const std::string& theRefPointAttrName)
1415 {
1416   AttributePoint2DPtr aPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1417       theMacroCircle->attribute(thePointAttrName));
1418   AttributeRefAttrPtr aRefAttr = theMacroCircle->refattr(theRefPointAttrName);
1419
1420   std::shared_ptr<GeomAPI_Pnt2d> aPoint = aPointAttr->pnt();
1421   if (aRefAttr) {
1422     if (aRefAttr->isObject()) {
1423       // project a point onto selected feature
1424       std::shared_ptr<SketchPlugin_Feature> aFeature =
1425           std::dynamic_pointer_cast<SketchPlugin_Feature>(
1426           ModelAPI_Feature::feature(aRefAttr->object()));
1427       if (aFeature) {
1428         SketchPlugin_Sketch* aSketch = aFeature->sketch();
1429         std::shared_ptr<GeomAPI_Edge> anEdge =
1430             std::dynamic_pointer_cast<GeomAPI_Edge>(aFeature->lastResult()->shape());
1431         if (anEdge) {
1432           std::shared_ptr<GeomAPI_Pnt> aPoint3D = aSketch->to3D(aPoint->x(), aPoint->y());
1433           if (anEdge->isLine())
1434             aPoint3D = anEdge->line()->project(aPoint3D);
1435           else if (anEdge->isCircle())
1436             aPoint3D = anEdge->circle()->project(aPoint3D);
1437           if(aPoint3D)
1438             aPoint = aSketch->to2D(aPoint3D);
1439         }
1440       }
1441     } else {
1442       AttributePoint2DPtr anOtherPoint =
1443           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
1444       if (anOtherPoint)
1445         aPoint = anOtherPoint->pnt(); // the reference point is much more precise, use it
1446     }
1447   }
1448
1449   return aPoint;
1450 }
1451
1452 static void threePointsOfFeature(const FeaturePtr& theMacroFeature,
1453                                  std::shared_ptr<GeomAPI_Pnt2d> thePoints[3])
1454 {
1455   if (theMacroFeature->getKind() == SketchPlugin_MacroCircle::ID()) {
1456     thePoints[0] = toPoint(theMacroFeature,
1457           SketchPlugin_MacroCircle::FIRST_POINT_ID(),
1458           SketchPlugin_MacroCircle::FIRST_POINT_REF_ID());
1459     thePoints[1] = toPoint(theMacroFeature,
1460           SketchPlugin_MacroCircle::SECOND_POINT_ID(),
1461           SketchPlugin_MacroCircle::SECOND_POINT_REF_ID());
1462     thePoints[2] = toPoint(theMacroFeature,
1463           SketchPlugin_MacroCircle::THIRD_POINT_ID(),
1464           SketchPlugin_MacroCircle::THIRD_POINT_REF_ID());
1465   } else if (theMacroFeature->getKind() == SketchPlugin_MacroArc::ID()) {
1466     thePoints[0] = toPoint(theMacroFeature,
1467           SketchPlugin_MacroArc::START_POINT_2_ID(),
1468           SketchPlugin_MacroArc::START_POINT_REF_ID());
1469     thePoints[1] = toPoint(theMacroFeature,
1470           SketchPlugin_MacroArc::END_POINT_2_ID(),
1471           SketchPlugin_MacroArc::END_POINT_REF_ID());
1472     thePoints[2] = toPoint(theMacroFeature,
1473           SketchPlugin_MacroArc::PASSED_POINT_ID(),
1474           SketchPlugin_MacroArc::PASSED_POINT_REF_ID());
1475   }
1476 }
1477
1478 static bool isPointsOnLine(const std::shared_ptr<GeomAPI_Pnt2d>& thePoint1,
1479                            const std::shared_ptr<GeomAPI_Pnt2d>& thePoint2,
1480                            const std::shared_ptr<GeomAPI_Pnt2d>& thePoint3)
1481 {
1482   static const double aTolerance = 1.e-7;
1483   if (thePoint1->distance(thePoint2) < aTolerance ||
1484       thePoint1->distance(thePoint3) < aTolerance)
1485     return true;
1486
1487   std::shared_ptr<GeomAPI_Dir2d> aDirP1P2(new GeomAPI_Dir2d(thePoint2->x() - thePoint1->x(),
1488                                                             thePoint2->y() - thePoint1->y()));
1489   std::shared_ptr<GeomAPI_Dir2d> aDirP1P3(new GeomAPI_Dir2d(thePoint3->x() - thePoint1->x(),
1490                                                             thePoint3->y() - thePoint1->y()));
1491   return fabs(aDirP1P2->cross(aDirP1P3)) < aTolerance;
1492 }
1493
1494 static bool isOnSameSide(const std::shared_ptr<GeomAPI_Lin>& theLine,
1495                          const std::shared_ptr<GeomAPI_Pnt>& thePoint1,
1496                          const std::shared_ptr<GeomAPI_Pnt>& thePoint2)
1497 {
1498   static const double aTolerance = 1.e-7;
1499   std::shared_ptr<GeomAPI_Dir> aLineDir = theLine->direction();
1500   std::shared_ptr<GeomAPI_XYZ> aLineLoc = theLine->location()->xyz();
1501
1502   std::shared_ptr<GeomAPI_XYZ> aVec1 = thePoint1->xyz()->decreased(aLineLoc);
1503   // the first point is on the line
1504   if (aVec1->squareModulus() < aTolerance * aTolerance)
1505     return false;
1506   std::shared_ptr<GeomAPI_Dir> aDirP1L(new GeomAPI_Dir(aVec1));
1507   std::shared_ptr<GeomAPI_XYZ> aVec2 = thePoint2->xyz()->decreased(aLineLoc);
1508   // the second point is on the line
1509   if (aVec2->squareModulus() < aTolerance * aTolerance)
1510     return false;
1511   std::shared_ptr<GeomAPI_Dir> aDirP2L(new GeomAPI_Dir(aVec2));
1512
1513   return aLineDir->cross(aDirP1L)->dot(aLineDir->cross(aDirP2L)) > -aTolerance;
1514 }
1515
1516 static bool isOnSameSide(const std::shared_ptr<GeomAPI_Circ>& theCircle,
1517                          const std::shared_ptr<GeomAPI_Pnt>&  thePoint1,
1518                          const std::shared_ptr<GeomAPI_Pnt>&  thePoint2)
1519 {
1520   static const double aTolerance = 1.e-7;
1521   std::shared_ptr<GeomAPI_Pnt> aCenter = theCircle->center();
1522   double aDistP1C = thePoint1->distance(aCenter);
1523   double aDistP2C = thePoint2->distance(aCenter);
1524   return (aDistP1C - theCircle->radius()) * (aDistP2C - theCircle->radius()) > -aTolerance;
1525 }
1526
1527 bool SketchPlugin_ThirdPointValidator::arePointsNotOnLine(
1528     const FeaturePtr& theMacroFeature,
1529     Events_InfoMessage& theError) const
1530 {
1531   static const std::string aErrorPointsOnLine(
1532       "Selected points are on the same line");
1533
1534   std::shared_ptr<GeomAPI_Pnt2d> aPoints[3];
1535   threePointsOfFeature(theMacroFeature, aPoints);
1536
1537   if (isPointsOnLine(aPoints[0], aPoints[1], aPoints[2])) {
1538     theError = aErrorPointsOnLine;
1539     return false;
1540   }
1541   return true;
1542 }
1543
1544 bool SketchPlugin_ThirdPointValidator::arePointsNotSeparated(
1545     const FeaturePtr& theMacroFeature,
1546     const std::list<std::string>& theArguments,
1547     Events_InfoMessage& theError) const
1548 {
1549   static const std::string aErrorPointsApart(
1550       "Selected entity is lying between first two points");
1551
1552   AttributeRefAttrPtr aThirdPointRef = theMacroFeature->refattr(theArguments.front());
1553   FeaturePtr aRefByThird;
1554   if (aThirdPointRef->isObject())
1555     aRefByThird = ModelAPI_Feature::feature(aThirdPointRef->object());
1556   if (!aRefByThird)
1557     return true;
1558
1559   std::shared_ptr<GeomAPI_Pnt2d> aPoints[3];
1560   threePointsOfFeature(theMacroFeature, aPoints);
1561
1562   std::shared_ptr<GeomAPI_Edge> aThirdShape =
1563       std::dynamic_pointer_cast<GeomAPI_Edge>(aRefByThird->lastResult()->shape());
1564   if (!aThirdShape)
1565     return true;
1566
1567   SketchPlugin_Sketch* aSketch =
1568       std::dynamic_pointer_cast<SketchPlugin_Feature>(theMacroFeature)->sketch();
1569   std::shared_ptr<GeomAPI_Pnt> aFirstPnt3D = aSketch->to3D(aPoints[0]->x(), aPoints[0]->y());
1570   std::shared_ptr<GeomAPI_Pnt> aSecondPnt3D = aSketch->to3D(aPoints[1]->x(), aPoints[1]->y());
1571
1572   bool isOk = true;
1573   if (aThirdShape->isLine())
1574     isOk = isOnSameSide(aThirdShape->line(), aFirstPnt3D, aSecondPnt3D);
1575   else if (aThirdShape->isCircle() || aThirdShape->isArc())
1576     isOk = isOnSameSide(aThirdShape->circle(), aFirstPnt3D, aSecondPnt3D);
1577
1578   if (!isOk)
1579     theError = aErrorPointsApart;
1580   return isOk;
1581 }
1582
1583 bool SketchPlugin_ArcEndPointValidator::isValid(
1584     const AttributePtr& theAttribute,
1585     const std::list<std::string>& theArguments,
1586     Events_InfoMessage& theError) const
1587 {
1588   FeaturePtr aFeature = ModelAPI_Feature::feature(theAttribute->owner());
1589   AttributeRefAttrPtr anEndPointRef = aFeature->refattr(theArguments.front());
1590
1591   if(!anEndPointRef.get()) {
1592     return true;
1593   }
1594
1595   ObjectPtr anObject = anEndPointRef->object();
1596   AttributePtr anAttr = anEndPointRef->attr();
1597   if(!anObject.get() && !anAttr.get()) {
1598     return true;
1599   }
1600
1601   if(anEndPointRef->attr().get()) {
1602     return false;
1603   }
1604
1605   ResultPtr aResult = std::dynamic_pointer_cast<ModelAPI_Result>(anObject);
1606   if(aResult.get()) {
1607     GeomShapePtr aShape = aResult->shape();
1608     if(aShape.get() && aShape->isVertex()) {
1609       return false;
1610     }
1611   }
1612
1613   aFeature = ModelAPI_Feature::feature(anObject);
1614   if(aFeature.get()) {
1615     if(aFeature->getKind() == SketchPlugin_Point::ID()) {
1616       return false;
1617     }
1618   }
1619
1620   return true;
1621 }
1622
1623 static GeomShapePtr toInfiniteEdge(const GeomShapePtr theShape)
1624 {
1625   if(!theShape.get()) {
1626     return theShape;
1627   }
1628
1629   if(!theShape->isEdge()) {
1630     return theShape;
1631   }
1632
1633   std::shared_ptr<GeomAPI_Edge> anEdge(new GeomAPI_Edge(theShape));
1634
1635   if(!anEdge.get()) {
1636     return theShape;
1637   }
1638
1639   if(anEdge->isLine()) {
1640     std::shared_ptr<GeomAPI_Lin> aLine = anEdge->line();
1641     GeomShapePtr aShape = GeomAlgoAPI_EdgeBuilder::line(aLine);
1642     return aShape;
1643   }
1644
1645   if(anEdge->isCircle() || anEdge->isArc()) {
1646     std::shared_ptr<GeomAPI_Circ> aCircle = anEdge->circle();
1647     GeomShapePtr aShape = GeomAlgoAPI_EdgeBuilder::lineCircle(aCircle);
1648     return aShape;
1649   }
1650
1651   return theShape;
1652 }
1653
1654 bool SketchPlugin_ArcEndPointIntersectionValidator::isValid(
1655     const AttributePtr& theAttribute,
1656     const std::list<std::string>& theArguments,
1657     Events_InfoMessage& theError) const
1658 {
1659   std::shared_ptr<SketchPlugin_MacroArc> anArcFeature =
1660       std::dynamic_pointer_cast<SketchPlugin_MacroArc>(theAttribute->owner());
1661   AttributeRefAttrPtr anEndPointRef = anArcFeature->refattr(theArguments.front());
1662
1663   if(!anEndPointRef.get()) {
1664     return true;
1665   }
1666
1667   GeomShapePtr anArcShape = toInfiniteEdge(anArcFeature->getArcShape(false));
1668
1669   if(!anArcShape.get() || anArcShape->isNull()) {
1670     return true;
1671   }
1672
1673   ObjectPtr anObject = anEndPointRef->object();
1674   AttributePtr anAttr = anEndPointRef->attr();
1675   if(!anObject.get() && !anAttr.get()) {
1676     return true;
1677   }
1678
1679   ResultPtr aResult = std::dynamic_pointer_cast<ModelAPI_Result>(anObject);
1680   if(aResult.get()) {
1681     GeomShapePtr aShape = aResult->shape();
1682     if (!aShape->isEdge())
1683       return true;
1684     aShape = toInfiniteEdge(aShape);
1685     if(aShape.get() && !aShape->isNull()) {
1686       if(anArcShape->isIntersect(aShape)) {
1687         return true;
1688       }
1689     }
1690   }
1691
1692   FeaturePtr aSelectedFeature = ModelAPI_Feature::feature(anObject);
1693   if(aSelectedFeature.get()) {
1694     std::list<ResultPtr> aResults = aSelectedFeature->results();
1695     for(std::list<ResultPtr>::const_iterator anIt = aResults.cbegin();
1696         anIt != aResults.cend();
1697         ++anIt)
1698     {
1699       GeomShapePtr aShape = (*anIt)->shape();
1700       if (!aShape->isEdge())
1701         return true;
1702       aShape = toInfiniteEdge(aShape);
1703       if(aShape.get() && !aShape->isNull()) {
1704         if(anArcShape->isIntersect(aShape)) {
1705           return true;
1706         }
1707       }
1708     }
1709   }
1710
1711   return false;
1712 }
1713
1714 bool SketchPlugin_HasNoConstraint::isValid(const AttributePtr& theAttribute,
1715                                            const std::list<std::string>& theArguments,
1716                                            Events_InfoMessage& theError) const
1717 {
1718   std::set<std::string> aFeatureKinds;
1719   for (std::list<std::string>::const_iterator anArgIt = theArguments.begin();
1720        anArgIt != theArguments.end(); anArgIt++) {
1721     aFeatureKinds.insert(*anArgIt);
1722   }
1723
1724   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
1725     theError = "The attribute with the %1 type is not processed";
1726     theError.arg(theAttribute->attributeType());
1727     return false;
1728   }
1729
1730   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
1731                                                                       (theAttribute);
1732   bool isObject = aRefAttr->isObject();
1733   if (!isObject) {
1734     theError = "It uses an empty object";
1735     return false;
1736   }
1737   ObjectPtr anObject = aRefAttr->object();
1738   FeaturePtr aFeature = ModelAPI_Feature::feature(anObject);
1739   if (!aFeature.get()) {
1740     theError = "The feature of the checked attribute is empty";
1741     return false;
1742   }
1743
1744   FeaturePtr aCurrentFeature = ModelAPI_Feature::feature(aRefAttr->owner());
1745
1746   std::set<AttributePtr> aRefsList = anObject->data()->refsToMe();
1747   std::set<AttributePtr>::const_iterator anIt = aRefsList.begin();
1748   for (; anIt != aRefsList.end(); anIt++) {
1749     FeaturePtr aRefFeature = ModelAPI_Feature::feature((*anIt)->owner());
1750     if (aRefFeature.get() && aCurrentFeature != aRefFeature &&
1751         aFeatureKinds.find(aRefFeature->getKind()) != aFeatureKinds.end())
1752       return false; // constraint is found, that means that the check is not valid
1753   }
1754   return true;
1755 }
1756
1757 bool SketchPlugin_ReplicationReferenceValidator::isValid(
1758     const AttributePtr& theAttribute,
1759     const std::list<std::string>& theArguments,
1760     Events_InfoMessage& theError) const
1761 {
1762   AttributeRefAttrPtr aRefAttr =
1763       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
1764   if (!aRefAttr)
1765   {
1766     theError = "Incorrect attribute";
1767     return false;
1768   }
1769
1770   ObjectPtr anOwner;
1771   if (aRefAttr->isObject())
1772     anOwner = aRefAttr->object();
1773   else
1774   {
1775     AttributePtr anAttr = aRefAttr->attr();
1776     anOwner = anAttr->owner();
1777   }
1778   FeaturePtr anAttrOwnerFeature = ModelAPI_Feature::feature(anOwner);
1779   if (!anAttrOwnerFeature)
1780     return true;
1781   AttributeBooleanPtr aCopyAttr = anAttrOwnerFeature->boolean(SketchPlugin_SketchEntity::COPY_ID());
1782   if (!aCopyAttr || !aCopyAttr->value())
1783     return true; // feature is not a copy, thus valid
1784
1785   // check the copy feature is already referred by the "Multi" feature
1786   FeaturePtr aMultiFeature = ModelAPI_Feature::feature(theAttribute->owner());
1787   AttributeRefListPtr aRefList = aMultiFeature->reflist(theArguments.front());
1788   for (int i = 0; i < aRefList->size(); ++i)
1789   {
1790     FeaturePtr aRefOwner = ModelAPI_Feature::feature(aRefList->object(i));
1791     if (aRefOwner == anAttrOwnerFeature)
1792     {
1793       theError = "Attribute refers to the object generated by this feature";
1794       return false;
1795     }
1796   }
1797
1798   return true;
1799 }
1800
1801 bool SketchPlugin_SketchFeatureValidator::isValid(const AttributePtr& theAttribute,
1802                                                   const std::list<std::string>& theArguments,
1803                                                   Events_InfoMessage& theError) const
1804 {
1805   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId() &&
1806       theAttribute->attributeType() != ModelAPI_AttributeReference::typeId()) {
1807     theError = "The attribute with the %1 type is not processed";
1808     theError.arg(theAttribute->attributeType());
1809     return false;
1810   }
1811
1812   // check the attribute refers to a sketch feature
1813   bool isSketchFeature = false;
1814   AttributeRefAttrPtr aRefAttr =
1815       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
1816   if (aRefAttr) {
1817     isSketchFeature = aRefAttr->isObject();
1818     if (isSketchFeature) {
1819       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->object());
1820       isSketchFeature = aFeature.get() != NULL;
1821       if (isSketchFeature) {
1822         std::shared_ptr<SketchPlugin_Feature> aSketchFeature =
1823             std::dynamic_pointer_cast<SketchPlugin_Feature>(aFeature);
1824         isSketchFeature = aSketchFeature.get() != NULL;
1825       }
1826     }
1827   }
1828   else {
1829     AttributeReferencePtr aReference =
1830       std::dynamic_pointer_cast<ModelAPI_AttributeReference>(theAttribute);
1831     if (aReference) {
1832       FeaturePtr aFeature = ModelAPI_Feature::feature(aReference->value());
1833       isSketchFeature = aFeature.get() && aFeature->getKind() == SketchPlugin_Sketch::ID();
1834     }
1835   }
1836
1837   if (!isSketchFeature)
1838     theError = "The object selected is not a sketch feature";
1839   return isSketchFeature;
1840 }
1841
1842 bool SketchPlugin_MultiRotationAngleValidator::isValid(const AttributePtr& theAttribute,
1843                                                        const std::list<std::string>& theArguments,
1844                                                        Events_InfoMessage& theError) const
1845 {
1846   if (theAttribute->attributeType() != ModelAPI_AttributeDouble::typeId()) {
1847     theError = "The attribute with the %1 type is not processed";
1848     theError.arg(theAttribute->attributeType());
1849     return false;
1850   }
1851
1852   AttributeDoublePtr anAngleAttr =
1853     std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(theAttribute);
1854
1855   FeaturePtr aMultiRotation = ModelAPI_Feature::feature(theAttribute->owner());
1856   AttributeStringPtr anAngleType =
1857       aMultiRotation->string(SketchPlugin_MultiRotation::ANGLE_TYPE());
1858   AttributeIntegerPtr aNbCopies =
1859       aMultiRotation->integer(SketchPlugin_MultiRotation::NUMBER_OF_OBJECTS_ID());
1860
1861   if (anAngleType->value() != "FullAngle")
1862   {
1863     double aFullAngleValue = anAngleAttr->value() * (aNbCopies->value() - 1);
1864     if (aFullAngleValue < -1.e-7 || aFullAngleValue > 359.9999999)
1865     {
1866       theError = "Rotation single angle should produce full angle less than 360 degree";
1867       return false;
1868     }
1869   }
1870   else
1871   {
1872     double aFullAngleValue = anAngleAttr->value();
1873     if (aFullAngleValue < -1.e-7 || aFullAngleValue > 360.0000001)
1874     {
1875       theError = "Rotation full angle should be in range [0, 360]";
1876       return false;
1877     }
1878   }
1879
1880   return true;
1881 }
1882
1883 bool SketchPlugin_BSplineValidator::isValid(const AttributePtr& theAttribute,
1884                                             const std::list<std::string>& theArguments,
1885                                             Events_InfoMessage& theError) const
1886 {
1887   AttributePoint2DArrayPtr aPolesArray =
1888       std::dynamic_pointer_cast<GeomDataAPI_Point2DArray>(theAttribute);
1889   if (!aPolesArray)
1890     return false;
1891
1892   if (aPolesArray->size() < 2) {
1893     theError = "Number of B-spline poles should be 2 or more";
1894     return false;
1895   }
1896
1897   return true;
1898 }
1899
1900 bool SketchPlugin_CurveFittingValidator::isValid(const FeaturePtr& theFeature,
1901                                                  const std::list<std::string>& theArguments,
1902                                                  Events_InfoMessage& theError) const
1903 {
1904   AttributeRefAttrListPtr aRefAttrList =
1905       theFeature->refattrlist(SketchPlugin_CurveFitting::POINTS_ID());
1906   AttributeBooleanPtr aPeriodicAttr =
1907       theFeature->boolean(SketchPlugin_CurveFitting::PERIODIC_ID());
1908
1909   // check number of selected entities
1910   int aMinNbPoints = aPeriodicAttr->value() ? 3 : 2;
1911   if (aRefAttrList->size() < aMinNbPoints) {
1912     theError = "Not enough points selected. Need at least %1 points.";
1913     theError.arg(aMinNbPoints);
1914     return false;
1915   }
1916   return true;
1917 }