src/SketchPlugin/SketchPlugin_Validators.cpp

   1 // Copyright (C) 2014-2020  CEA/DEN, EDF R&D
   2 //
   3 // This library is free software; you can redistribute it and/or
   4 // modify it under the terms of the GNU Lesser General Public
   5 // License as published by the Free Software Foundation; either
   6 // version 2.1 of the License, or (at your option) any later version.
   7 //
   8 // This library is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11 // Lesser General Public License for more details.
  12 //
  13 // You should have received a copy of the GNU Lesser General Public
  14 // License along with this library; if not, write to the Free Software
  15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  16 //
  17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  18 //
  19
  20 #include "SketchPlugin_Validators.h"
  21
  22 #include "SketchPlugin_Arc.h"
  23 #include "SketchPlugin_BSpline.h"
  24 #include "SketchPlugin_BSplinePeriodic.h"
  25 #include "SketchPlugin_Circle.h"
  26 #include "SketchPlugin_ConstraintCoincidence.h"
  27 #include "SketchPlugin_ConstraintCoincidenceInternal.h"
  28 #include "SketchPlugin_ConstraintDistance.h"
  29 #include "SketchPlugin_ConstraintRigid.h"
  30 #include "SketchPlugin_ConstraintTangent.h"
  31 #include "SketchPlugin_Ellipse.h"
  32 #include "SketchPlugin_EllipticArc.h"
  33 #include "SketchPlugin_Fillet.h"
  34 #include "SketchPlugin_Line.h"
  35 #include "SketchPlugin_MacroArc.h"
  36 #include "SketchPlugin_MacroCircle.h"
  37 #include "SketchPlugin_MultiRotation.h"
  38 #include "SketchPlugin_Point.h"
  39 #include "SketchPlugin_Sketch.h"
  40 #include "SketchPlugin_Trim.h"
  41 #include "SketchPlugin_Tools.h"
  42
  43 #include "SketcherPrs_Tools.h"
  44
  45 #include <Events_InfoMessage.h>
  46
  47 #include <ModelAPI_Data.h>
  48 #include <ModelAPI_Validator.h>
  49 #include <ModelAPI_AttributeDouble.h>
  50 #include <ModelAPI_AttributeInteger.h>
  51 #include <ModelAPI_AttributeRefAttr.h>
  52 #include <ModelAPI_AttributeRefList.h>
  53 #include <ModelAPI_AttributeSelectionList.h>
  54 #include <ModelAPI_AttributeString.h>
  55 #include <ModelAPI_Session.h>
  56 #include <ModelAPI_Tools.h>
  57 #include <ModelAPI_ResultConstruction.h>
  58
  59 #include <ModelGeomAlgo_Point2D.h>
  60 #include <ModelGeomAlgo_Shape.h>
  61
  62 #include <GeomAlgoAPI_EdgeBuilder.h>
  63 #include <GeomAlgoAPI_ShapeTools.h>
  64
  65 #include <GeomAPI_Circ.h>
  66 #include <GeomAPI_Dir2d.h>
  67 #include <GeomAPI_Ellipse.h>
  68 #include <GeomAPI_Lin.h>
  69 #include <GeomAPI_Edge.h>
  70 #include <GeomAPI_Vertex.h>
  71
  72 #include <GeomDataAPI_Point2D.h>
  73 #include <GeomDataAPI_Point2DArray.h>
  74
  75 #include <algorithm>
  76 #include <cmath>
  77
  78 #ifdef _MSC_VER
  79 #pragma warning(disable: 4100)
  80 #endif
  81
  82 const double tolerance = 1.e-7;
  83
  84 static bool isSpline(FeaturePtr theFeature)
  85 {
  86   return theFeature && (theFeature->getKind() == SketchPlugin_BSpline::ID() ||
  87                         theFeature->getKind() == SketchPlugin_BSplinePeriodic::ID());
  88 }
  89
  90
  91 bool SketchPlugin_DistanceAttrValidator::isValid(const AttributePtr& theAttribute,
  92                                                  const std::list<std::string>& theArguments,
  93                                                  Events_InfoMessage& theError) const
  94 {
  95   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
  96     theError = "The attribute with the %1 type is not processed";
  97     theError.arg(theAttribute->attributeType());
  98     return false;
  99   }
 100
 101   // there is a check whether the feature contains a point and a linear edge or two point values
 102   std::string aParamA = theArguments.front();
 103   SessionPtr aMgr = ModelAPI_Session::get();
 104   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 105
 106   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
 107                                                                       (theAttribute);
 108   bool isObject = aRefAttr->isObject();
 109   if (!isObject) {
 110     // an attribute is a point. A point value is valid always for the distance
 111     return true;
 112   } else {
 113     // 1. check whether the references object is a linear
 114     ObjectPtr anObject = aRefAttr->object();
 115
 116     const ModelAPI_AttributeValidator* aShapeValidator =
 117       dynamic_cast<const ModelAPI_AttributeValidator*>(
 118       aFactory->validator("GeomValidators_ShapeType"));
 119     std::list<std::string> anArguments;
 120     anArguments.push_back("circle");
 121     Events_InfoMessage aCircleError;
 122     bool aShapeValid = aShapeValidator->isValid(aRefAttr, anArguments, aCircleError);
 123     // the circle line is not a valid case
 124     if (aShapeValid) {
 125       theError = "Circle can not be used in distance constraint";
 126       return false;
 127     }
 128
 129     anArguments.clear();
 130     anArguments.push_back("line");
 131     Events_InfoMessage aLineError;
 132     aShapeValid = aShapeValidator->isValid(aRefAttr, anArguments, aLineError);
 133     // if the attribute value is not a line, that means it is a vertex. A vertex is always valid
 134     if (aShapeValid) {
 135       FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 136       // If it is a line then we have to check that first attribute id not a line
 137       std::shared_ptr<SketchPlugin_Feature> aSFeature =
 138         std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
 139       SketchPlugin_Sketch* aSketch = aSFeature->sketch();
 140       std::shared_ptr<GeomAPI_Ax3> aPlane = SketchPlugin_Sketch::plane(aSketch);
 141       std::shared_ptr<GeomDataAPI_Point2D> aPoint = SketcherPrs_Tools::getFeaturePoint(
 142         aFeature->data(), aParamA, aPlane);
 143       if (!aPoint.get()) {
 144         theError = "One of parameters of distance constraint should be a point";
 145         return false;
 146       }
 147     }
 148   }
 149   return true;
 150 }
 151
 152 bool SketchPlugin_TangentAttrValidator::isValid(const AttributePtr& theAttribute,
 153                                                 const std::list<std::string>& theArguments,
 154                                                 Events_InfoMessage& theError) const
 155 {
 156   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 157     theError = "The attribute with the %1 type is not processed";
 158     theError.arg(theAttribute->attributeType());
 159     return false;
 160   }
 161
 162   // there is a check whether the feature contains a point and a linear edge or two point values
 163   std::string aParamA = theArguments.front();
 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       if ((*anIt)->getKind() == SketchPlugin_ConstraintCoincidenceInternal::ID())
 235         continue; // skip internal constraints
 236
 237       std::set<FeaturePtr> aCoinc;
 238       if (isApplicableCoincidence(*anIt, SketchPlugin_Constraint::ENTITY_A()))
 239         SketchPlugin_Tools::findCoincidences(*anIt, SketchPlugin_Constraint::ENTITY_B(),
 240                                              aCoinc, true);
 241       else if (isApplicableCoincidence(*anIt, SketchPlugin_Constraint::ENTITY_B()))
 242         SketchPlugin_Tools::findCoincidences(*anIt, SketchPlugin_Constraint::ENTITY_A(),
 243                                              aCoinc, true);
 244
 245       isValid = aCoinc.find(aOtherFea) != aCoinc.end();
 246     }
 247   }
 248
 249   return isValid;
 250 }
 251
 252 bool SketchPlugin_PerpendicularAttrValidator::isValid(const AttributePtr& theAttribute,
 253                                                       const std::list<std::string>& theArguments,
 254                                                       Events_InfoMessage& theError) const
 255 {
 256   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 257     theError = "The attribute with the %1 type is not processed";
 258     theError.arg(theAttribute->attributeType());
 259     return false;
 260   }
 261
 262   std::string aParamA = theArguments.front();
 263
 264   FeaturePtr anOwner = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 265   AttributeRefAttrPtr aRefAttr =
 266       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 267
 268   bool isObject = aRefAttr->isObject();
 269   ObjectPtr anObject = aRefAttr->object();
 270   if (isObject && anObject.get()) {
 271     FeaturePtr aRefFea = ModelAPI_Feature::feature(anObject);
 272
 273     AttributeRefAttrPtr aOtherAttr = anOwner->refattr(aParamA);
 274     ObjectPtr aOtherObject = aOtherAttr->object();
 275     FeaturePtr aOtherFea = ModelAPI_Feature::feature(aOtherObject);
 276
 277     // at least one feature should be a line
 278     if (aRefFea->getKind() != SketchPlugin_Line::ID() &&
 279         aOtherFea && aOtherFea->getKind() != SketchPlugin_Line::ID()) {
 280       theError = "At least one feature should be a line";
 281       return false;
 282     }
 283     else if (isSpline(aRefFea) || isSpline(aOtherFea)) {
 284       theError = "B-spline is not supported";
 285       return false;
 286     }
 287   }
 288   else {
 289     theError = "It uses an empty object";
 290     return false;
 291   }
 292
 293   return true;
 294 }
 295
 296 bool SketchPlugin_NotFixedValidator::isValid(const AttributePtr& theAttribute,
 297                                              const std::list<std::string>& theArguments,
 298                                              Events_InfoMessage& theError) const
 299 {
 300   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 301     theError = "The attribute with the %1 type is not processed";
 302     theError.arg(theAttribute->attributeType());
 303     return false;
 304   }
 305
 306   std::shared_ptr<SketchPlugin_Feature> aFeature =
 307       std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
 308   if (!aFeature)
 309     return true;
 310
 311   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 312
 313   SketchPlugin_Sketch* aSketch = aFeature->sketch();
 314   int aNbFeatures = aSketch->numberOfSubs();
 315   for (int anInd = 0; anInd < aNbFeatures; anInd++) {
 316     FeaturePtr aSubFeature = aSketch->subFeature(anInd);
 317     if (aSubFeature->getKind() != SketchPlugin_ConstraintRigid::ID() || aSubFeature == aFeature)
 318       continue;
 319     AttributeRefAttrPtr aRAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 320         aSubFeature->attribute(SketchPlugin_ConstraintRigid::ENTITY_A()));
 321     if (aRefAttr->isObject()) {
 322       if (aRefAttr->object() == aRAttr->object()) {
 323         ObjectPtr anObject = aRefAttr->object();
 324         std::string aName = anObject.get() ? anObject->data()->name() : "";
 325         theError = "The object %1 has been already fixed.";
 326         theError.arg(aName);
 327         return false;
 328       }
 329     }
 330     else if (aRefAttr->attr() == aRAttr->attr()) {
 331       AttributePtr anAttribute = aRefAttr->attr();
 332       std::string aName = anAttribute.get() ? anAttribute->id() : "";
 333       theError = "The attribute %1 has been already fixed.";
 334       theError.arg(aName);
 335       return false;
 336     }
 337   }
 338   return true;
 339 }
 340
 341 bool SketchPlugin_EqualAttrValidator::isValid(const AttributePtr& theAttribute,
 342                                               const std::list<std::string>& theArguments,
 343                                               Events_InfoMessage& theError) const
 344 {
 345   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 346     theError = "The attribute with the %1 type is not processed";
 347     theError.arg(theAttribute->attributeType());
 348     return false;
 349   }
 350
 351   std::string aParamA = theArguments.front();
 352   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 353   AttributeRefAttrPtr aRefAttr[2];
 354   aRefAttr[0] = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 355   aRefAttr[1] = aFeature->data()->refattr(aParamA);
 356
 357   if (!aRefAttr[0]->isObject() || !aRefAttr[1]->isObject()) {
 358     theError = "Attributes can not be used in equal constraint";
 359     return false;
 360   }
 361
 362   std::string aType[2];
 363   std::list<std::string> anArguments;
 364   for (int i = 0; i < 2; i++) {
 365     aFeature = ModelAPI_Feature::feature(aRefAttr[i]->object());
 366     if (!aFeature.get())
 367       return true;
 368
 369     aType[i] = aFeature->getKind();
 370     if (aFeature->getKind() != SketchPlugin_Line::ID() &&
 371         aFeature->getKind() != SketchPlugin_Circle::ID() &&
 372         aFeature->getKind() != SketchPlugin_Arc::ID() &&
 373         aFeature->getKind() != SketchPlugin_Ellipse::ID() &&
 374         aFeature->getKind() != SketchPlugin_EllipticArc::ID()) {
 375       theError = "The %1 feature is not supported by the Equal constraint.";
 376       theError.arg(aFeature->getKind());
 377       // wrong type of attribute
 378       return false;
 379     }
 380   }
 381
 382   bool isOk = aType[0] == aType[1];
 383   if (!isOk) {
 384     // circle and arc may be equal
 385     isOk = (aType[0] == SketchPlugin_Arc::ID() && aType[1] == SketchPlugin_Circle::ID())
 386         || (aType[0] == SketchPlugin_Circle::ID() && aType[1] == SketchPlugin_Arc::ID());
 387   }
 388   if (!isOk) {
 389     // ellipse and elliptic arc may be equal
 390     isOk = (aType[0] == SketchPlugin_EllipticArc::ID() && aType[1] == SketchPlugin_Ellipse::ID())
 391         || (aType[0] == SketchPlugin_Ellipse::ID() && aType[1] == SketchPlugin_EllipticArc::ID());
 392   }
 393   if (!isOk) {
 394     theError = "Features with kinds %1 and %2 can not be equal.";
 395     theError.arg(aType[0]).arg(aType[1]);
 396     return false;
 397   }
 398   return true;
 399 }
 400
 401 bool SketchPlugin_MirrorAttrValidator::isValid(const AttributePtr& theAttribute,
 402                                                const std::list<std::string>& theArguments,
 403                                                Events_InfoMessage& theError) const
 404 {
 405   if (theAttribute->attributeType() != ModelAPI_AttributeRefList::typeId()) {
 406     theError = "The attribute with the %1 type is not processed";
 407     theError.arg(theAttribute->attributeType());
 408     return false;
 409   }
 410
 411   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 412   AttributeRefListPtr aSelAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(theAttribute);
 413
 414   AttributeRefListPtr aRefListOfMirrored = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 415       aFeature->attribute(SketchPlugin_Constraint::ENTITY_C()));
 416   std::list<ObjectPtr> aMirroredObjects = aRefListOfMirrored->list();
 417
 418   for(int anInd = 0; anInd < aSelAttr->size(); anInd++) {
 419     ObjectPtr aSelObject = aSelAttr->object(anInd);
 420
 421     // B-splines are not supported in Mirror yet
 422     FeaturePtr aSelFeature = ModelAPI_Feature::feature(aSelObject);
 423     if (aSelFeature && (aSelFeature->getKind() == SketchPlugin_BSpline::ID() ||
 424         aSelFeature->getKind() == SketchPlugin_BSplinePeriodic::ID())) {
 425       theError = "Not supported";
 426       return false;
 427     }
 428
 429     std::string aName = aSelObject.get() ? aSelObject->data()->name() : "";
 430     std::list<ObjectPtr>::iterator aMirIter = aMirroredObjects.begin();
 431     for (; aMirIter != aMirroredObjects.end(); aMirIter++)
 432       if (aSelObject == *aMirIter) {
 433         theError = "The object %1 is a result of mirror";
 434         theError.arg(aName);
 435         return false;
 436       }
 437   }
 438   return true;
 439 }
 440
 441 bool SketchPlugin_CoincidenceAttrValidator::isValid(const AttributePtr& theAttribute,
 442                                                     const std::list<std::string>& theArguments,
 443                                                     Events_InfoMessage& theError) const
 444 {
 445   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 446     theError = "The attribute with the %1 type is not processed";
 447     theError.arg(theAttribute->attributeType());
 448     return false;
 449   }
 450
 451   // there is a check whether the feature contains a point and a linear edge or two point values
 452   std::string aParamA = theArguments.front();
 453
 454   FeaturePtr aConstraint = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 455   AttributeRefAttrPtr aRefAttrA = aConstraint->data()->refattr(aParamA);
 456   if (!aRefAttrA) {
 457     theError = "The %1 attribute should be %2";
 458     theError.arg(aParamA).arg(ModelAPI_AttributeRefAttr::typeId());
 459     return false;
 460   }
 461
 462   AttributeRefAttrPtr aRefAttrB =
 463     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 464
 465   // first attribute is a point, it may coincide with any object
 466   if (!aRefAttrA->isObject())
 467     return true;
 468   else {
 469     ObjectPtr anObject = aRefAttrA->object();
 470     if (!anObject.get()) {
 471       theError = "%1 attribute has an empty object";
 472       theError.arg(aParamA);
 473       return false;
 474     }
 475     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrA->object());
 476     if (!aFeature.get()) {
 477       theError = "%1 attribute has an empty feature";
 478       theError.arg(aParamA);
 479       return false;
 480     }
 481
 482     if (aFeature->getKind() == SketchPlugin_Point::ID())
 483       return true;
 484   }
 485
 486   // second attribute is a point, it may coincide with any object
 487   if (!aRefAttrB->isObject())
 488     return true;
 489   else {
 490     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrB->object());
 491     if (!aFeature) {
 492       theError = "%1 attribute has an empty object";
 493       theError.arg(theAttribute->id());
 494       return false;
 495     }
 496     if (aFeature->getKind() == SketchPlugin_Point::ID())
 497       return true;
 498   }
 499   theError = "There is no an attribute filled by a point";
 500   return false;
 501 }
 502
 503
 504 bool SketchPlugin_CopyValidator::isValid(const AttributePtr& theAttribute,
 505                                          const std::list<std::string>& theArguments,
 506                                          Events_InfoMessage& theError) const
 507 {
 508   if (theAttribute->attributeType() != ModelAPI_AttributeRefList::typeId()) {
 509     theError = "The attribute with the %1 type is not processed";
 510     theError.arg(theAttribute->attributeType());
 511     return false;
 512   }
 513
 514   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 515   AttributeRefListPtr aSelAttr =
 516     std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(theAttribute);
 517
 518   AttributeRefListPtr aRefListOfInitial = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 519       aFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
 520   AttributeRefListPtr aRefListOfCopied = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 521       aFeature->attribute(SketchPlugin_Constraint::ENTITY_B()));
 522   std::list<ObjectPtr> anInitialObjects = aRefListOfInitial->list();
 523   std::list<ObjectPtr> aCopiedObjects = aRefListOfCopied->list();
 524
 525   std::list<ObjectPtr>::iterator anObjIter;
 526   for(int anInd = 0; anInd < aSelAttr->size(); anInd++) {
 527     ObjectPtr aSelObject = aSelAttr->object(anInd);
 528     anObjIter = anInitialObjects.begin();
 529     for (; anObjIter != anInitialObjects.end(); anObjIter++)
 530       if (aSelObject == *anObjIter)
 531         break;
 532     if (anObjIter != anInitialObjects.end())
 533       continue;
 534
 535     // B-splines are not supported in Copying features
 536     FeaturePtr aSelFeature = ModelAPI_Feature::feature(aSelObject);
 537     if (aSelFeature && (aSelFeature->getKind() == SketchPlugin_BSpline::ID() ||
 538         aSelFeature->getKind() == SketchPlugin_BSplinePeriodic::ID())) {
 539       theError = "Not supported";
 540       return false;
 541     }
 542
 543     anObjIter = aCopiedObjects.begin();
 544     for (; anObjIter != aCopiedObjects.end(); anObjIter++)
 545       if (aSelObject == *anObjIter) {
 546         std::string aName = aSelObject.get() ? aSelObject->data()->name() : "";
 547         theError = "The object %1 is a result of copy";
 548         theError.arg(aName);
 549         return false;
 550       }
 551   }
 552   return true;
 553 }
 554
 555 bool SketchPlugin_SolverErrorValidator::isValid(
 556   const std::shared_ptr<ModelAPI_Feature>& theFeature,
 557   const std::list<std::string>& theArguments,
 558   Events_InfoMessage& theError) const
 559 {
 560   AttributeStringPtr aAttributeString = theFeature->string(SketchPlugin_Sketch::SOLVER_ERROR());
 561
 562   if (!aAttributeString->value().empty()) {
 563     theError = aAttributeString->value();
 564     return false;
 565   }
 566
 567   return true;
 568 }
 569
 570 bool SketchPlugin_SolverErrorValidator::isNotObligatory(std::string theFeature,
 571                                                         std::string theAttribute)
 572 {
 573   return true;
 574 }
 575
 576 static bool hasSameTangentFeature(const std::set<AttributePtr>& theRefsList,
 577                                   const FeaturePtr theFeature)
 578 {
 579   for(std::set<AttributePtr>::const_iterator
 580       anIt = theRefsList.cbegin(); anIt != theRefsList.cend(); ++anIt) {
 581     std::shared_ptr<ModelAPI_Attribute> aAttr = (*anIt);
 582     FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aAttr->owner());
 583     if (!aFeature)
 584       continue;
 585     if (aFeature->getKind() == SketchPlugin_ConstraintTangent::ID()) {
 586       AttributeRefAttrPtr anAttrRefA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 587         aFeature->attribute(SketchPlugin_ConstraintTangent::ENTITY_A()));
 588       AttributeRefAttrPtr anAttrRefB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 589         aFeature->attribute(SketchPlugin_ConstraintTangent::ENTITY_B()));
 590       if(anAttrRefA.get()) {
 591         ResultPtr aResA = std::dynamic_pointer_cast<ModelAPI_Result>(anAttrRefA->object());
 592         if(aResA.get()) {
 593           DocumentPtr aDoc = aResA->document();
 594           if(aDoc.get()) {
 595             FeaturePtr aFeatureA = aDoc->feature(aResA);
 596             if(aFeatureA.get() && aFeatureA == theFeature) {
 597               return true;
 598             }
 599           }
 600         }
 601       }
 602       if(anAttrRefB.get()) {
 603         ResultPtr aResB = std::dynamic_pointer_cast<ModelAPI_Result>(anAttrRefB->object());
 604         if(aResB.get()) {
 605           DocumentPtr aDoc = aResB->document();
 606           if(aDoc.get()) {
 607             FeaturePtr aFeatureB = aDoc->feature(aResB);
 608             if(aFeatureB.get() && aFeatureB == theFeature) {
 609               return true;
 610             }
 611           }
 612         }
 613       }
 614     }
 615   }
 616   return false;
 617 }
 618
 619 static bool isPointPointCoincidence(const FeaturePtr& theCoincidence)
 620 {
 621   AttributeRefAttrPtr aRefAttr[2] = {
 622       theCoincidence->refattr(SketchPlugin_Constraint::ENTITY_A()),
 623       theCoincidence->refattr(SketchPlugin_Constraint::ENTITY_B())
 624   };
 625
 626   bool arePoints = true;
 627   for (int i = 0; i < 2 && arePoints; ++i) {
 628     if (aRefAttr[i]->isObject()) {
 629       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr[i]->object());
 630       arePoints = aFeature.get() && aFeature->getKind() == SketchPlugin_Point::ID();
 631     } else
 632       arePoints = aRefAttr[i]->attr().get() != NULL;
 633   }
 634   return arePoints;
 635 }
 636
 637 bool SketchPlugin_FilletVertexValidator::isValid(const AttributePtr& theAttribute,
 638                                                  const std::list<std::string>& theArguments,
 639                                                  Events_InfoMessage& theError) const
 640 {
 641   AttributeRefAttrPtr aPointRefAttr =
 642     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 643   if(!aPointRefAttr.get()) {
 644     theError = "Error: Point not selected.";
 645     return false;
 646   }
 647
 648   AttributePtr aPointAttribute = aPointRefAttr->attr();
 649   if (!aPointAttribute.get()) {
 650     theError = "Error: Bad point selected.";
 651     return false;
 652   }
 653   std::shared_ptr<GeomAPI_Pnt2d> aSelectedPnt =
 654     std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aPointAttribute)->pnt();
 655
 656   // Obtain constraint coincidence for the fillet point.
 657   const std::set<AttributePtr>& aRefsList = aPointAttribute->owner()->data()->refsToMe();
 658   FeaturePtr aConstraintCoincidence;
 659   for(std::set<AttributePtr>::const_iterator anIt = aRefsList.cbegin();
 660       anIt != aRefsList.cend(); ++anIt) {
 661     std::shared_ptr<ModelAPI_Attribute> aAttr = (*anIt);
 662     FeaturePtr aConstrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aAttr->owner());
 663     if (aConstrFeature->getKind() == SketchPlugin_ConstraintCoincidence::ID()) {
 664       if (!isPointPointCoincidence(aConstrFeature))
 665         continue;
 666
 667       AttributeRefAttrPtr anAttrRefA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 668         aConstrFeature->attribute(SketchPlugin_ConstraintCoincidence::ENTITY_A()));
 669       AttributeRefAttrPtr anAttrRefB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 670         aConstrFeature->attribute(SketchPlugin_ConstraintCoincidence::ENTITY_B()));
 671
 672       AttributePtr anAttrA = anAttrRefA->attr();
 673       if(aPointAttribute == anAttrA) {
 674         aConstraintCoincidence = aConstrFeature;
 675         break;
 676       }
 677
 678       AttributePtr anAttrB = anAttrRefB->attr();
 679       if(aPointAttribute == anAttrB) {
 680         aConstraintCoincidence = aConstrFeature;
 681         break;
 682       }
 683     }
 684   }
 685
 686   if(!aConstraintCoincidence.get()) {
 687     theError = "Error: one of the selected point does not have coincidence.";
 688     return false;
 689   }
 690
 691   // Get coincides from constraint.
 692   std::set<FeaturePtr> aCoinsides;
 693   SketchPlugin_Tools::findCoincidences(aConstraintCoincidence,
 694                                         SketchPlugin_ConstraintCoincidence::ENTITY_A(),
 695                                         aCoinsides,
 696                                         true);
 697   SketchPlugin_Tools::findCoincidences(aConstraintCoincidence,
 698                                         SketchPlugin_ConstraintCoincidence::ENTITY_B(),
 699                                         aCoinsides,
 700                                         true);
 701
 702   // Remove points and external lines from set of coincides.
 703   std::set<FeaturePtr> aNewSetOfCoincides;
 704   for(std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 705       anIt != aCoinsides.end(); ++anIt) {
 706     std::shared_ptr<SketchPlugin_SketchEntity> aSketchEntity =
 707       std::dynamic_pointer_cast<SketchPlugin_SketchEntity>(*anIt);
 708     if(aSketchEntity.get() && (aSketchEntity->isCopy() || aSketchEntity->isExternal())) {
 709       continue;
 710     }
 711     if((*anIt)->getKind() != SketchPlugin_Line::ID() &&
 712         (*anIt)->getKind() != SketchPlugin_Arc::ID()) {
 713           continue;
 714     }
 715     if((*anIt)->getKind() == SketchPlugin_Arc::ID()) {
 716       AttributePtr anArcCenter = (*anIt)->attribute(SketchPlugin_Arc::CENTER_ID());
 717       std::shared_ptr<GeomAPI_Pnt2d> anArcCenterPnt =
 718         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anArcCenter)->pnt();
 719       double aDistSelectedArcCenter = aSelectedPnt->distance(anArcCenterPnt);
 720       if(aDistSelectedArcCenter < tolerance) {
 721         continue;
 722       }
 723     }
 724     aNewSetOfCoincides.insert(*anIt);
 725   }
 726   aCoinsides = aNewSetOfCoincides;
 727
 728   // If we still have more than two coincides remove auxilary entities from set of coincides.
 729   if(aCoinsides.size() > 2) {
 730     aNewSetOfCoincides.clear();
 731     for(std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 732         anIt != aCoinsides.end(); ++anIt) {
 733       if(!(*anIt)->boolean(SketchPlugin_SketchEntity::AUXILIARY_ID())->value()) {
 734         aNewSetOfCoincides.insert(*anIt);
 735       }
 736     }
 737     aCoinsides = aNewSetOfCoincides;
 738   }
 739
 740   if(aCoinsides.size() != 2) {
 741     theError = "Error: One of the selected points does not have two suitable edges for fillet.";
 742     return false;
 743   }
 744
 745   // Check that selected edges don't have tangent constraint.
 746   std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 747   FeaturePtr aFirstFeature = *anIt++;
 748   FeaturePtr aSecondFeature = *anIt;
 749   const std::set<AttributePtr>& aFirstFeatureRefsList = aFirstFeature->data()->refsToMe();
 750   if(hasSameTangentFeature(aFirstFeatureRefsList, aSecondFeature)) {
 751     theError = "Error: Edges in selected point has tangent constraint.";
 752     return false;
 753   }
 754
 755   std::list<ResultPtr> aFirstResults = aFirstFeature->results();
 756   for(std::list<ResultPtr>::iterator aResIt = aFirstResults.begin();
 757       aResIt != aFirstResults.end(); ++aResIt) {
 758     ResultPtr aRes = *aResIt;
 759     const std::set<AttributePtr>& aResRefsList = aRes->data()->refsToMe();
 760     if(hasSameTangentFeature(aResRefsList, aSecondFeature)) {
 761       theError = "Error: Edges in selected point has tangent constraint.";
 762       return false;
 763     }
 764   }
 765
 766   // Check the features are not tangent
 767   std::shared_ptr<GeomAPI_Shape> aFirstShape = aFirstFeature->lastResult()->shape();
 768   std::shared_ptr<GeomAPI_Shape> aSecondShape = aSecondFeature->lastResult()->shape();
 769   if (!aFirstShape || !aFirstShape->isEdge() ||
 770       !aSecondShape || !aSecondShape->isEdge()) {
 771     theError = "Error: At least on of the features is not an edge";
 772     return false;
 773   }
 774
 775   std::shared_ptr<GeomAPI_Edge> anEdge1 = std::dynamic_pointer_cast<GeomAPI_Edge>(aFirstShape);
 776   std::shared_ptr<GeomAPI_Edge> anEdge2 = std::dynamic_pointer_cast<GeomAPI_Edge>(aSecondShape);
 777
 778   static const double TOL = 1.e-7;
 779   if (anEdge1->isLine() && anEdge2->isLine()) {
 780     // Check that lines not collinear
 781     std::shared_ptr<GeomAPI_Dir> aDir1 = anEdge1->line()->direction();
 782     std::shared_ptr<GeomAPI_Dir> aDir2 = anEdge2->line()->direction();
 783     double aCross = aDir1->cross(aDir2)->squareModulus();
 784     if (aCross < TOL * TOL)
 785       return false;
 786   } else if (anEdge1->isArc() && anEdge2->isArc()) {
 787     // check the circles are not tangent
 788     std::shared_ptr<GeomAPI_Circ> aCirc1 = anEdge1->circle();
 789     std::shared_ptr<GeomAPI_Circ> aCirc2 = anEdge2->circle();
 790     double aDistCC = aCirc1->center()->distance(aCirc2->center());
 791     double aRadSum = aCirc1->radius() + aCirc2->radius();
 792     double aRadDiff = fabs(aCirc1->radius() - aCirc2->radius());
 793     if (fabs(aDistCC - aRadSum) < TOL || fabs(aDistCC - aRadDiff) < TOL)
 794       return false;
 795   } else {
 796     // check whether line and arc are tangent
 797     std::shared_ptr<GeomAPI_Circ> aCirc;
 798     std::shared_ptr<GeomAPI_Lin> aLine;
 799     if (anEdge1->isLine()) {
 800       aLine = anEdge1->line();
 801       aCirc = anEdge2->circle();
 802     } else {
 803       aCirc = anEdge1->circle();
 804       aLine = anEdge2->line();
 805     }
 806
 807     double aDistCL = aLine->distance(aCirc->center());
 808     if (fabs(aDistCL - aCirc->radius()) < TOL)
 809       return false;
 810   }
 811
 812   return true;
 813 }
 814
 815 bool SketchPlugin_MiddlePointAttrValidator::isValid(const AttributePtr& theAttribute,
 816                                                     const std::list<std::string>& theArguments,
 817                                                     Events_InfoMessage& theError) const
 818 {
 819   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 820     theError = "The attribute with the %1 type is not processed";
 821     theError.arg(theAttribute->attributeType());
 822     return false;
 823   }
 824
 825   // there is a check whether the feature contains a point and a linear edge or two point values
 826   std::string aParamA = theArguments.front();
 827
 828   FeaturePtr anAttributeFeature =
 829     std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 830   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 831   AttributeRefAttrPtr anOtherAttr = anAttributeFeature->data()->refattr(aParamA);
 832
 833   AttributeRefAttrPtr aRefAttrs[2] = {aRefAttr, anOtherAttr};
 834   int aNbPoints = 0;
 835   int aNbLines = 0;
 836   for (int i = 0; i < 2; ++i) {
 837     if (!aRefAttrs[i]->isObject())
 838       ++aNbPoints;
 839     else {
 840       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrs[i]->object());
 841       if (!aFeature) {
 842         if (aNbPoints + aNbLines != 0)
 843           return true;
 844         else continue;
 845       }
 846
 847       if (aFeature->getKind() == SketchPlugin_Point::ID())
 848         ++aNbPoints;
 849       else if (aFeature->getKind() == SketchPlugin_Line::ID() ||
 850                aFeature->getKind() == SketchPlugin_Arc::ID() ||
 851                aFeature->getKind() == SketchPlugin_EllipticArc::ID())
 852         ++aNbLines;
 853     }
 854   }
 855
 856   if (aNbPoints != 1 || aNbLines != 1) {
 857     theError = "Middle point constraint allows points and lines only";
 858     return false;
 859   }
 860   return true;
 861 }
 862
 863 bool SketchPlugin_ArcTangentPointValidator::isValid(const AttributePtr& theAttribute,
 864                                                     const std::list<std::string>& /*theArguments*/,
 865                                                     Events_InfoMessage& theError) const
 866 {
 867   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 868     theError = "The attribute with the %1 type is not processed";
 869     theError.arg(theAttribute->attributeType());
 870     return false;
 871   }
 872   FeaturePtr anOwner = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 873   AttributeStringPtr anArcTypeAttr = anOwner->string(SketchPlugin_MacroArc::ARC_TYPE());
 874   if (anArcTypeAttr && anArcTypeAttr->value() != SketchPlugin_MacroArc::ARC_TYPE_BY_TANGENT_EDGE())
 875     return true; // not applicable for non-tangent arcs
 876
 877   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 878   AttributePtr anAttr = aRefAttr->attr();
 879   if (!anAttr) {
 880     theError = "The attribute %1 should be a point";
 881     theError.arg(theAttribute->id());
 882     return false;
 883   }
 884
 885   FeaturePtr anAttrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(anAttr->owner());
 886   const std::string& aFeatureType = anAttrFeature->getKind();
 887   if (aFeatureType == SketchPlugin_Arc::ID()) {
 888     // selected point should not be a center of arc
 889     const std::string& aPntId = anAttr->id();
 890     if (aPntId != SketchPlugin_Arc::START_ID() && aPntId != SketchPlugin_Arc::END_ID()) {
 891       theError = "The attribute %1 is not supported";
 892       theError.arg(aPntId);
 893       return false;
 894     }
 895   }
 896   else if (aFeatureType == SketchPlugin_Line::ID()) {
 897     // selected point should be bound point of line
 898     const std::string& aPntId = anAttr->id();
 899     if (aPntId != SketchPlugin_Line::START_ID() && aPntId != SketchPlugin_Line::END_ID()) {
 900       theError = "The attribute %1 is not supported";
 901       theError.arg(aPntId);
 902       return false;
 903     }
 904   }
 905   else {
 906     theError = "Unable to build tangent arc on %1";
 907     theError.arg(anAttrFeature->getKind());
 908     return false;
 909   }
 910
 911   return true;
 912 }
 913
 914 bool SketchPlugin_ArcTransversalPointValidator::isValid(
 915     const AttributePtr& theAttribute,
 916     const std::list<std::string>& /*theArguments*/,
 917     Events_InfoMessage& theError) const
 918 {
 919   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 920     theError = "The attribute with the %1 type is not processed";
 921     theError.arg(theAttribute->attributeType());
 922     return false;
 923   }
 924   FeaturePtr anOwner = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 925   AttributeStringPtr anArcTypeAttr = anOwner->string(SketchPlugin_MacroArc::ARC_TYPE());
 926   if (anArcTypeAttr &&
 927       anArcTypeAttr->value() != SketchPlugin_MacroArc::ARC_TYPE_BY_TRANSVERSAL_LINE())
 928     return true; // not applicable for non-transversal arcs
 929
 930   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 931   AttributePtr anAttr = aRefAttr->attr();
 932   if (!anAttr) {
 933     theError = "The attribute %1 should be a point";
 934     theError.arg(theAttribute->id());
 935     return false;
 936   }
 937
 938   FeaturePtr anAttrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(anAttr->owner());
 939   const std::string& aFeatureType = anAttrFeature->getKind();
 940   if (aFeatureType == SketchPlugin_Line::ID()) {
 941     // selected point should be bound point of line
 942     const std::string& aPntId = anAttr->id();
 943     if (aPntId != SketchPlugin_Line::START_ID() && aPntId != SketchPlugin_Line::END_ID()) {
 944       theError = "The attribute %1 is not supported";
 945       theError.arg(aPntId);
 946       return false;
 947     }
 948   }
 949   else {
 950     theError = "Unable to build perpendicular arc on %1";
 951     theError.arg(anAttrFeature->getKind());
 952     return false;
 953   }
 954
 955   return true;
 956 }
 957
 958 bool SketchPlugin_IntersectionValidator::isValid(const AttributePtr& theAttribute,
 959                                                  const std::list<std::string>& theArguments,
 960                                                  Events_InfoMessage& theError) const
 961 {
 962   if (theAttribute->attributeType() != ModelAPI_AttributeSelection::typeId()) {
 963     theError = "The attribute with the %1 type is not processed";
 964     theError.arg(theAttribute->attributeType());
 965     return false;
 966   }
 967   AttributeSelectionPtr anExternalAttr =
 968       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(theAttribute);
 969   std::shared_ptr<GeomAPI_Edge> anEdge;
 970   if (anExternalAttr && anExternalAttr->value() && anExternalAttr->value()->isEdge()) {
 971     anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(anExternalAttr->value()));
 972   } else if(anExternalAttr->context() && anExternalAttr->context()->shape() &&
 973             anExternalAttr->context()->shape()->isEdge()) {
 974     anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(anExternalAttr->context()->shape()));
 975   }
 976
 977   if (!anEdge) {
 978     theError = "The attribute %1 should be an edge";
 979     theError.arg(theAttribute->id());
 980     return false;
 981   }
 982
 983   // find a sketch
 984   std::shared_ptr<SketchPlugin_Sketch> aSketch;
 985   std::set<AttributePtr> aRefs = anExternalAttr->owner()->data()->refsToMe();
 986   std::set<AttributePtr>::const_iterator anIt = aRefs.begin();
 987   for (; anIt != aRefs.end(); ++anIt) {
 988     CompositeFeaturePtr aComp =
 989         std::dynamic_pointer_cast<ModelAPI_CompositeFeature>((*anIt)->owner());
 990     if (aComp && aComp->getKind() == SketchPlugin_Sketch::ID()) {
 991       aSketch = std::dynamic_pointer_cast<SketchPlugin_Sketch>(aComp);
 992       break;
 993     }
 994   }
 995   if (!aSketch) {
 996     theError = "There is no sketch referring to the current feature";
 997     return false;
 998   }
 999
1000   // check the edge is intersected with sketch plane
1001   std::shared_ptr<GeomAPI_Pln> aPlane = aSketch->plane();
1002
1003   std::list<GeomPointPtr> anIntersectionsPoints;
1004   anEdge->intersectWithPlane(aPlane, anIntersectionsPoints);
1005   if (anIntersectionsPoints.empty()) {
1006     theError = "The edge is not intersected with sketch plane";
1007     return false;
1008   }
1009   return true;
1010 }
1011
1012 bool SketchPlugin_SplitValidator::isValid(const AttributePtr& theAttribute,
1013                                           const std::list<std::string>& theArguments,
1014                                           Events_InfoMessage& theError) const
1015 {
1016   bool aValid = false;
1017
1018   if (theAttribute->attributeType() != ModelAPI_AttributeReference::typeId()) {
1019     theError = "The attribute with the %1 type is not processed";
1020     theError.arg(theAttribute->attributeType());
1021     return aValid;
1022   }
1023   AttributeReferencePtr aFeatureAttr =
1024             std::dynamic_pointer_cast<ModelAPI_AttributeReference>(theAttribute);
1025   std::shared_ptr<SketchPlugin_Feature> aSplitFeature =
1026     std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
1027
1028   ObjectPtr anAttrObject = aFeatureAttr->value();
1029   if (!anAttrObject) {
1030     AttributePtr aPreviewAttr = aSplitFeature->attribute(SketchPlugin_Trim::PREVIEW_OBJECT());
1031     aFeatureAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(aPreviewAttr);
1032     anAttrObject = aFeatureAttr->value();
1033   }
1034
1035   FeaturePtr anAttrFeature = ModelAPI_Feature::feature(anAttrObject);
1036   if (!anAttrFeature)
1037     return aValid;
1038
1039   // B-splines are not supported by the Split yet
1040   if (anAttrFeature->getKind() == SketchPlugin_BSpline::ID() ||
1041       anAttrFeature->getKind() == SketchPlugin_BSplinePeriodic::ID()) {
1042     theError = "Not supported";
1043     return false;
1044   }
1045
1046   std::set<ResultPtr> anEdgeShapes;
1047   ModelGeomAlgo_Shape::shapesOfType(anAttrFeature, GeomAPI_Shape::EDGE, anEdgeShapes);
1048   if (anEdgeShapes.empty() || anEdgeShapes.size() > 1 /*there case has not existed yet*/)
1049     return aValid;
1050
1051   // coincidences to the feature
1052   std::set<std::shared_ptr<GeomDataAPI_Point2D> > aRefAttributes;
1053   ModelGeomAlgo_Point2D::getPointsOfReference(anAttrFeature,
1054                       SketchPlugin_ConstraintCoincidence::ID(),
1055                       aRefAttributes, SketchPlugin_Point::ID(), SketchPlugin_Point::COORD_ID());
1056
1057   GeomShapePtr anAttrShape = (*anEdgeShapes.begin())->shape();
1058   std::shared_ptr<SketchPlugin_Feature> aSFeature =
1059                                 std::dynamic_pointer_cast<SketchPlugin_Feature>(anAttrFeature);
1060   if (!aSFeature || aSFeature->isCopy())
1061     return false;
1062   SketchPlugin_Sketch* aSketch = aSFeature->sketch();
1063
1064   std::shared_ptr<ModelAPI_Data> aData = aSketch->data();
1065   std::shared_ptr<GeomDataAPI_Point> aC = std::dynamic_pointer_cast<GeomDataAPI_Point>(
1066       aData->attribute(SketchPlugin_Sketch::ORIGIN_ID()));
1067   std::shared_ptr<GeomDataAPI_Dir> aX = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
1068       aData->attribute(SketchPlugin_Sketch::DIRX_ID()));
1069   std::shared_ptr<GeomDataAPI_Dir> aNorm = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
1070       aData->attribute(SketchPlugin_Sketch::NORM_ID()));
1071   std::shared_ptr<GeomAPI_Dir> aDirY(new GeomAPI_Dir(aNorm->dir()->cross(aX->dir())));
1072
1073   typedef std::map<std::shared_ptr<GeomAPI_Pnt>,
1074                     std::pair<std::list<std::shared_ptr<GeomDataAPI_Point2D> >,
1075                               std::list<std::shared_ptr<ModelAPI_Object> > > > PointToRefsMap;
1076   PointToRefsMap aPointsInfo;
1077
1078   ModelGeomAlgo_Point2D::getPointsInsideShape(anAttrShape, aRefAttributes, aC->pnt(),
1079                                               aX->dir(), aDirY, aPointsInfo);
1080   int aCoincidentToFeature = (int)aPointsInfo.size();
1081   if (anAttrFeature->getKind() == SketchPlugin_Circle::ID() ||
1082       anAttrFeature->getKind() == SketchPlugin_Ellipse::ID())
1083     aValid = aCoincidentToFeature >= 2;
1084   else
1085     aValid = aCoincidentToFeature >= 1;
1086
1087   return aValid;
1088 }
1089
1090 bool SketchPlugin_TrimValidator::isValid(const AttributePtr& theAttribute,
1091                                          const std::list<std::string>& theArguments,
1092                                          Events_InfoMessage& theError) const
1093 {
1094   bool aValid = false;
1095
1096   if (theAttribute->attributeType() != ModelAPI_AttributeReference::typeId()) {
1097     theError = "The attribute with the %1 type is not processed";
1098     theError.arg(theAttribute->attributeType());
1099     return aValid;
1100   }
1101   AttributeReferencePtr aBaseObjectAttr =
1102             std::dynamic_pointer_cast<ModelAPI_AttributeReference>(theAttribute);
1103
1104   std::shared_ptr<SketchPlugin_Feature> aTrimFeature =
1105                  std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
1106
1107   ObjectPtr aBaseObject = aBaseObjectAttr->value();
1108   if (!aBaseObject) {
1109     AttributePtr aPreviewAttr = aTrimFeature->attribute(SketchPlugin_Trim::PREVIEW_OBJECT());
1110     aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(aPreviewAttr);
1111     aBaseObject = aBaseObjectAttr->value();
1112   }
1113
1114   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObject);
1115   if (!aBaseFeature)
1116     return aValid;
1117
1118   std::shared_ptr<SketchPlugin_Feature> aSketchFeature =
1119                                  std::dynamic_pointer_cast<SketchPlugin_Feature>(aBaseFeature);
1120   if (!aSketchFeature.get() || aSketchFeature->isCopy())
1121     return aValid;
1122
1123   // B-splines are not supported by the Trim yet
1124   if (aBaseFeature->getKind() == SketchPlugin_BSpline::ID() ||
1125       aBaseFeature->getKind() == SketchPlugin_BSplinePeriodic::ID()) {
1126     theError = "Not supported";
1127     return false;
1128   }
1129
1130   // point on feature
1131   AttributePoint2DPtr aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1132                        aTrimFeature->data()->attribute(SketchPlugin_Trim::PREVIEW_POINT()));
1133
1134   SketchPlugin_Sketch* aSketch = aTrimFeature->sketch();
1135
1136   std::shared_ptr<GeomAPI_Pnt2d> anAttributePnt2d = aPoint->pnt();
1137   std::shared_ptr<GeomAPI_Pnt> anAttributePnt = aSketch->to3D(anAttributePnt2d->x(),
1138                                                               anAttributePnt2d->y());
1139
1140   std::map<ObjectPtr, std::set<GeomShapePtr> > aCashedShapes;
1141   std::map<ObjectPtr, std::map<std::shared_ptr<GeomAPI_Pnt>,
1142            std::pair<std::list<std::shared_ptr<GeomDataAPI_Point2D> >,
1143                      std::list<std::shared_ptr<ModelAPI_Object> > > > > anObjectToPoints;
1144   SketchPlugin_SegmentationTools::fillObjectShapes(
1145       aTrimFeature.get(), aBaseObject, aCashedShapes, anObjectToPoints);
1146   const std::set<GeomShapePtr>& aShapes = aCashedShapes[aBaseObject];
1147
1148   return aShapes.size() > 1;
1149 }
1150
1151 bool SketchPlugin_ProjectionValidator::isValid(const AttributePtr& theAttribute,
1152                                                const std::list<std::string>& theArguments,
1153                                                Events_InfoMessage& theError) const
1154 {
1155   if (theAttribute->attributeType() != ModelAPI_AttributeSelection::typeId()) {
1156     theError = "The attribute with the %1 type is not processed";
1157     theError.arg(theAttribute->attributeType());
1158     return false;
1159   }
1160
1161   AttributeSelectionPtr aFeatureAttr =
1162       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(theAttribute);
1163   std::shared_ptr<GeomAPI_Vertex> aVertex;
1164   std::shared_ptr<GeomAPI_Edge> anEdge;
1165   std::shared_ptr<SketchPlugin_Feature> aSketchFeature;
1166   if (aFeatureAttr.get()) {
1167     GeomShapePtr aVal = aFeatureAttr->value();
1168     ResultPtr aRes = aFeatureAttr->context();
1169     if (aVal && aVal->isVertex())
1170       aVertex = std::shared_ptr<GeomAPI_Vertex>(new GeomAPI_Vertex(aVal));
1171     else if (aVal && aVal->isEdge()) {
1172       anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aVal));
1173     } else if(aRes && aRes->shape()) {
1174       if (aRes->shape()->isVertex())
1175         aVertex = std::shared_ptr<GeomAPI_Vertex>(new GeomAPI_Vertex(aRes->shape()));
1176       else if (aRes->shape()->isEdge())
1177         anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aRes->shape()));
1178     }
1179
1180     // try to convert result to sketch feature
1181     if (aRes) {
1182       aSketchFeature =
1183         std::dynamic_pointer_cast<SketchPlugin_Feature>(ModelAPI_Feature::feature(aRes));
1184     }
1185   }
1186   if (!aVertex && !anEdge) {
1187     theError = "The attribute %1 should be an edge or vertex";
1188     theError.arg(theAttribute->id());
1189     return false;
1190   }
1191
1192   // find a sketch
1193   std::shared_ptr<SketchPlugin_Sketch> aSketch;
1194   std::set<AttributePtr> aRefs = theAttribute->owner()->data()->refsToMe();
1195   std::set<AttributePtr>::const_iterator anIt = aRefs.begin();
1196   for (; anIt != aRefs.end(); ++anIt) {
1197     CompositeFeaturePtr aComp =
1198         std::dynamic_pointer_cast<ModelAPI_CompositeFeature>((*anIt)->owner());
1199     if (aComp && aComp->getKind() == SketchPlugin_Sketch::ID()) {
1200       aSketch = std::dynamic_pointer_cast<SketchPlugin_Sketch>(aComp);
1201       break;
1202     }
1203   }
1204   if (!aSketch) {
1205     theError = "There is no sketch referring to the current feature";
1206     return false;
1207   }
1208   if (aSketchFeature && aSketch.get() == aSketchFeature->sketch()) {
1209     theError = "Unable to project feature from the same sketch";
1210     return false;
1211   }
1212
1213   std::shared_ptr<GeomAPI_Pln> aPlane = aSketch->plane();
1214   std::shared_ptr<GeomAPI_Dir> aNormal = aPlane->direction();
1215   std::shared_ptr<GeomAPI_Pnt> anOrigin = aPlane->location();
1216
1217   bool aValid = true;
1218   if (aVertex)
1219     aValid = true; // vertex is always could be projected
1220   else 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   FeaturePtr aMultiFeature = ModelAPI_Feature::feature(theAttribute->owner());
1786   // Collect original entities
1787   std::set<FeaturePtr> anOriginalFeatures;
1788   if (theArguments.size() > 1) {
1789     AttributeRefListPtr anOrigList = aMultiFeature->reflist(theArguments.back());
1790     for (int i = 0; i < anOrigList->size(); ++i)
1791     {
1792       FeaturePtr aFeature = ModelAPI_Feature::feature(anOrigList->object(i));
1793       if (aFeature == anAttrOwnerFeature)
1794         return true;
1795     }
1796   }
1797
1798   // check the copy feature is already referred by the "Multi" feature
1799   AttributeRefListPtr aRefList = aMultiFeature->reflist(theArguments.front());
1800   for (int i = 0; i < aRefList->size(); ++i)
1801   {
1802     FeaturePtr aRefOwner = ModelAPI_Feature::feature(aRefList->object(i));
1803     if (aRefOwner == anAttrOwnerFeature)
1804     {
1805       theError = "Attribute refers to the object generated by this feature";
1806       return false;
1807     }
1808   }
1809
1810   return true;
1811 }
1812
1813 bool SketchPlugin_SketchFeatureValidator::isValid(const AttributePtr& theAttribute,
1814                                                   const std::list<std::string>& theArguments,
1815                                                   Events_InfoMessage& theError) const
1816 {
1817   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId() &&
1818       theAttribute->attributeType() != ModelAPI_AttributeReference::typeId()) {
1819     theError = "The attribute with the %1 type is not processed";
1820     theError.arg(theAttribute->attributeType());
1821     return false;
1822   }
1823
1824   // check the attribute refers to a sketch feature
1825   bool isSketchFeature = false;
1826   AttributeRefAttrPtr aRefAttr =
1827       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
1828   if (aRefAttr) {
1829     isSketchFeature = aRefAttr->isObject();
1830     if (isSketchFeature) {
1831       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->object());
1832       isSketchFeature = aFeature.get() != NULL;
1833       if (isSketchFeature) {
1834         std::shared_ptr<SketchPlugin_Feature> aSketchFeature =
1835             std::dynamic_pointer_cast<SketchPlugin_Feature>(aFeature);
1836         isSketchFeature = aSketchFeature.get() != NULL;
1837       }
1838     }
1839   }
1840   else {
1841     AttributeReferencePtr aReference =
1842       std::dynamic_pointer_cast<ModelAPI_AttributeReference>(theAttribute);
1843     if (aReference) {
1844       FeaturePtr aFeature = ModelAPI_Feature::feature(aReference->value());
1845       isSketchFeature = aFeature.get() && aFeature->getKind() == SketchPlugin_Sketch::ID();
1846     }
1847   }
1848
1849   if (!isSketchFeature)
1850     theError = "The object selected is not a sketch feature";
1851   return isSketchFeature;
1852 }
1853
1854 bool SketchPlugin_MultiRotationAngleValidator::isValid(const AttributePtr& theAttribute,
1855                                                        const std::list<std::string>& theArguments,
1856                                                        Events_InfoMessage& theError) const
1857 {
1858   if (theAttribute->attributeType() != ModelAPI_AttributeDouble::typeId()) {
1859     theError = "The attribute with the %1 type is not processed";
1860     theError.arg(theAttribute->attributeType());
1861     return false;
1862   }
1863
1864   AttributeDoublePtr anAngleAttr =
1865     std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(theAttribute);
1866
1867   FeaturePtr aMultiRotation = ModelAPI_Feature::feature(theAttribute->owner());
1868   AttributeStringPtr anAngleType =
1869       aMultiRotation->string(SketchPlugin_MultiRotation::ANGLE_TYPE());
1870   AttributeIntegerPtr aNbCopies =
1871       aMultiRotation->integer(SketchPlugin_MultiRotation::NUMBER_OF_OBJECTS_ID());
1872
1873   if (anAngleType->value() != "FullAngle")
1874   {
1875     double aFullAngleValue = anAngleAttr->value() * (aNbCopies->value() - 1);
1876     if (aFullAngleValue < -1.e-7 || aFullAngleValue > 359.9999999)
1877     {
1878       theError = "Rotation single angle should produce full angle less than 360 degree";
1879       return false;
1880     }
1881   }
1882   else
1883   {
1884     double aFullAngleValue = anAngleAttr->value();
1885     if (aFullAngleValue < -1.e-7 || aFullAngleValue > 360.0000001)
1886     {
1887       theError = "Rotation full angle should be in range [0, 360]";
1888       return false;
1889     }
1890   }
1891
1892   return true;
1893 }
1894
1895 bool SketchPlugin_BSplineValidator::isValid(const AttributePtr& theAttribute,
1896                                             const std::list<std::string>& theArguments,
1897                                             Events_InfoMessage& theError) const
1898 {
1899   AttributePoint2DArrayPtr aPolesArray =
1900       std::dynamic_pointer_cast<GeomDataAPI_Point2DArray>(theAttribute);
1901   if (!aPolesArray)
1902     return false;
1903
1904   if (aPolesArray->size() < 2) {
1905     theError = "Number of B-spline poles should be 2 or more";
1906     return false;
1907   }
1908
1909   return true;
1910 }