src/SketchPlugin/SketchPlugin_Validators.cpp

   1 // Copyright (C) 2014-2019  CEA/DEN, EDF R&D
   2 //
   3 // This library is free software; you can redistribute it and/or
   4 // modify it under the terms of the GNU Lesser General Public
   5 // License as published by the Free Software Foundation; either
   6 // version 2.1 of the License, or (at your option) any later version.
   7 //
   8 // This library is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11 // Lesser General Public License for more details.
  12 //
  13 // You should have received a copy of the GNU Lesser General Public
  14 // License along with this library; if not, write to the Free Software
  15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  16 //
  17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  18 //
  19
  20 #include "SketchPlugin_Validators.h"
  21
  22 #include "SketchPlugin_Arc.h"
  23 #include "SketchPlugin_BSpline.h"
  24 #include "SketchPlugin_BSplinePeriodic.h"
  25 #include "SketchPlugin_Circle.h"
  26 #include "SketchPlugin_ConstraintCoincidence.h"
  27 #include "SketchPlugin_ConstraintCoincidenceInternal.h"
  28 #include "SketchPlugin_ConstraintDistance.h"
  29 #include "SketchPlugin_ConstraintRigid.h"
  30 #include "SketchPlugin_ConstraintTangent.h"
  31 #include "SketchPlugin_Ellipse.h"
  32 #include "SketchPlugin_EllipticArc.h"
  33 #include "SketchPlugin_Fillet.h"
  34 #include "SketchPlugin_Line.h"
  35 #include "SketchPlugin_MacroArc.h"
  36 #include "SketchPlugin_MacroCircle.h"
  37 #include "SketchPlugin_MultiRotation.h"
  38 #include "SketchPlugin_Point.h"
  39 #include "SketchPlugin_Sketch.h"
  40 #include "SketchPlugin_Trim.h"
  41 #include "SketchPlugin_Tools.h"
  42
  43 #include "SketcherPrs_Tools.h"
  44
  45 #include <Events_InfoMessage.h>
  46
  47 #include <ModelAPI_Data.h>
  48 #include <ModelAPI_Validator.h>
  49 #include <ModelAPI_AttributeDouble.h>
  50 #include <ModelAPI_AttributeInteger.h>
  51 #include <ModelAPI_AttributeRefAttr.h>
  52 #include <ModelAPI_AttributeRefList.h>
  53 #include <ModelAPI_AttributeSelectionList.h>
  54 #include <ModelAPI_AttributeString.h>
  55 #include <ModelAPI_Session.h>
  56 #include <ModelAPI_Tools.h>
  57 #include <ModelAPI_ResultConstruction.h>
  58
  59 #include <ModelGeomAlgo_Point2D.h>
  60 #include <ModelGeomAlgo_Shape.h>
  61
  62 #include <GeomAlgoAPI_EdgeBuilder.h>
  63 #include <GeomAlgoAPI_ShapeTools.h>
  64
  65 #include <GeomAPI_Circ.h>
  66 #include <GeomAPI_Dir2d.h>
  67 #include <GeomAPI_Ellipse.h>
  68 #include <GeomAPI_Lin.h>
  69 #include <GeomAPI_Edge.h>
  70 #include <GeomAPI_Vertex.h>
  71
  72 #include <GeomDataAPI_Point2D.h>
  73 #include <GeomDataAPI_Point2DArray.h>
  74
  75 #include <algorithm>
  76 #include <cmath>
  77
  78 const double tolerance = 1.e-7;
  79
  80 static bool isSpline(FeaturePtr theFeature)
  81 {
  82   return theFeature && (theFeature->getKind() == SketchPlugin_BSpline::ID() ||
  83                         theFeature->getKind() == SketchPlugin_BSplinePeriodic::ID());
  84 }
  85
  86
  87 bool SketchPlugin_DistanceAttrValidator::isValid(const AttributePtr& theAttribute,
  88                                                  const std::list<std::string>& theArguments,
  89                                                  Events_InfoMessage& theError) const
  90 {
  91   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
  92     theError = "The attribute with the %1 type is not processed";
  93     theError.arg(theAttribute->attributeType());
  94     return false;
  95   }
  96
  97   // there is a check whether the feature contains a point and a linear edge or two point values
  98   std::string aParamA = theArguments.front();
  99   SessionPtr aMgr = ModelAPI_Session::get();
 100   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 101
 102   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
 103                                                                       (theAttribute);
 104   bool isObject = aRefAttr->isObject();
 105   if (!isObject) {
 106     // an attribute is a point. A point value is valid always for the distance
 107     return true;
 108   } else {
 109     // 1. check whether the references object is a linear
 110     ObjectPtr anObject = aRefAttr->object();
 111
 112     const ModelAPI_AttributeValidator* aShapeValidator =
 113       dynamic_cast<const ModelAPI_AttributeValidator*>(
 114       aFactory->validator("GeomValidators_ShapeType"));
 115     std::list<std::string> anArguments;
 116     anArguments.push_back("circle");
 117     Events_InfoMessage aCircleError;
 118     bool aShapeValid = aShapeValidator->isValid(aRefAttr, anArguments, aCircleError);
 119     // the circle line is not a valid case
 120     if (aShapeValid) {
 121       theError = "Circle can not be used in distance constraint";
 122       return false;
 123     }
 124
 125     anArguments.clear();
 126     anArguments.push_back("line");
 127     Events_InfoMessage aLineError;
 128     aShapeValid = aShapeValidator->isValid(aRefAttr, anArguments, aLineError);
 129     // if the attribute value is not a line, that means it is a vertex. A vertex is always valid
 130     if (aShapeValid) {
 131       FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 132       // If it is a line then we have to check that first attribute id not a line
 133       std::shared_ptr<SketchPlugin_Feature> aSFeature =
 134         std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
 135       SketchPlugin_Sketch* aSketch = aSFeature->sketch();
 136       std::shared_ptr<GeomAPI_Ax3> aPlane = SketchPlugin_Sketch::plane(aSketch);
 137       std::shared_ptr<GeomDataAPI_Point2D> aPoint = SketcherPrs_Tools::getFeaturePoint(
 138         aFeature->data(), aParamA, aPlane);
 139       if (!aPoint.get()) {
 140         theError = "One of parameters of distance constraint should be a point";
 141         return false;
 142       }
 143     }
 144   }
 145   return true;
 146 }
 147
 148 bool SketchPlugin_TangentAttrValidator::isValid(const AttributePtr& theAttribute,
 149                                                 const std::list<std::string>& theArguments,
 150                                                 Events_InfoMessage& theError) const
 151 {
 152   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 153     theError = "The attribute with the %1 type is not processed";
 154     theError.arg(theAttribute->attributeType());
 155     return false;
 156   }
 157
 158   // there is a check whether the feature contains a point and a linear edge or two point values
 159   std::string aParamA = theArguments.front();
 160   SessionPtr aMgr = ModelAPI_Session::get();
 161   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 162
 163   FeaturePtr anAttributeFeature =
 164     std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 165   AttributeRefAttrPtr aRefAttr =
 166     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 167
 168   bool isObject = aRefAttr->isObject();
 169   ObjectPtr anObject = aRefAttr->object();
 170   if (!isObject || !anObject.get()) {
 171     theError = "It uses an empty object";
 172     return false;
 173   }
 174
 175   FeaturePtr aRefFea = ModelAPI_Feature::feature(anObject);
 176
 177   AttributeRefAttrPtr aOtherAttr = anAttributeFeature->data()->refattr(aParamA);
 178   ObjectPtr aOtherObject = aOtherAttr->object();
 179   FeaturePtr aOtherFea = ModelAPI_Feature::feature(aOtherObject);
 180   if (!aOtherFea)
 181     return true;
 182
 183   if (aRefFea->getKind() == SketchPlugin_Line::ID() &&
 184       aOtherFea->getKind() == SketchPlugin_Line::ID()) {
 185     theError = "Two segments cannot be tangent";
 186     return false;
 187   }
 188   else if (isSpline(aRefFea) && isSpline(aOtherFea)) {
 189     theError = "Two B-splines cannot be tangent";
 190     return false;
 191   }
 192
 193   bool isValid = true;
 194   bool hasSpline = isSpline(aRefFea);
 195   if (!hasSpline && isSpline(aOtherFea)) {
 196     hasSpline = true;
 197     std::swap(aRefFea, aOtherFea);
 198   }
 199   if (hasSpline) {
 200     auto isApplicableCoincidence = [](FeaturePtr theFeature, const std::string& theAttrName) {
 201       AttributeRefAttrPtr aRefAttr = theFeature->refattr(theAttrName);
 202       if (aRefAttr->isObject())
 203         return false;
 204       AttributePtr anAttr = aRefAttr->attr();
 205       FeaturePtr anOwner = ModelAPI_Feature::feature(anAttr->owner());
 206       AttributePoint2DPtr aPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anAttr);
 207       if (aPointAttr) {
 208         return anOwner->getKind() == SketchPlugin_BSpline::ID() &&
 209               (aPointAttr->id() == SketchPlugin_BSpline::START_ID() ||
 210                aPointAttr->id() == SketchPlugin_BSpline::END_ID());
 211       }
 212
 213       AttributePoint2DArrayPtr aPntArray =
 214           std::dynamic_pointer_cast<GeomDataAPI_Point2DArray>(anAttr);
 215       if (aPntArray && anOwner->getKind() == SketchPlugin_BSpline::ID()) {
 216         // check index of the pole
 217         AttributeIntegerPtr anIndex = theAttrName == SketchPlugin_Constraint::ENTITY_A() ?
 218             theFeature->integer(SketchPlugin_ConstraintCoincidenceInternal::INDEX_ENTITY_A()) :
 219             theFeature->integer(SketchPlugin_ConstraintCoincidenceInternal::INDEX_ENTITY_B());
 220         return anIndex && (anIndex->value() == 0 || anIndex->value() == aPntArray->size() - 1);
 221       }
 222       return false;
 223     };
 224
 225     isValid = false;
 226     AttributePoint2DArrayPtr aBSplinePoles = std::dynamic_pointer_cast<GeomDataAPI_Point2DArray>(
 227         aRefFea->attribute(SketchPlugin_BSplineBase::POLES_ID()));
 228     // additional check the B-spline edge and the other edge have a coincident boundary point
 229     std::set<FeaturePtr> aCoincidences = SketchPlugin_Tools::findCoincidentConstraints(aRefFea);
 230     for (std::set<FeaturePtr>::iterator anIt = aCoincidences.begin();
 231          anIt != aCoincidences.end() && !isValid; ++anIt) {
 232       std::set<FeaturePtr> aCoinc;
 233       if (isApplicableCoincidence(*anIt, SketchPlugin_Constraint::ENTITY_A()))
 234         SketchPlugin_Tools::findCoincidences(*anIt, SketchPlugin_Constraint::ENTITY_B(),
 235                                              aCoinc, true);
 236       else if (isApplicableCoincidence(*anIt, SketchPlugin_Constraint::ENTITY_B()))
 237         SketchPlugin_Tools::findCoincidences(*anIt, SketchPlugin_Constraint::ENTITY_A(),
 238                                              aCoinc, true);
 239
 240       isValid = aCoinc.find(aOtherFea) != aCoinc.end();
 241     }
 242   }
 243
 244   return isValid;
 245 }
 246
 247 bool SketchPlugin_PerpendicularAttrValidator::isValid(const AttributePtr& theAttribute,
 248                                                       const std::list<std::string>& theArguments,
 249                                                       Events_InfoMessage& theError) const
 250 {
 251   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 252     theError = "The attribute with the %1 type is not processed";
 253     theError.arg(theAttribute->attributeType());
 254     return false;
 255   }
 256
 257   std::string aParamA = theArguments.front();
 258   SessionPtr aMgr = ModelAPI_Session::get();
 259   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 260
 261   FeaturePtr anOwner = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 262   AttributeRefAttrPtr aRefAttr =
 263       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 264
 265   bool isObject = aRefAttr->isObject();
 266   ObjectPtr anObject = aRefAttr->object();
 267   if (isObject && anObject.get()) {
 268     FeaturePtr aRefFea = ModelAPI_Feature::feature(anObject);
 269
 270     AttributeRefAttrPtr aOtherAttr = anOwner->refattr(aParamA);
 271     ObjectPtr aOtherObject = aOtherAttr->object();
 272     FeaturePtr aOtherFea = ModelAPI_Feature::feature(aOtherObject);
 273
 274     // at least one feature should be a line
 275     if (aRefFea->getKind() != SketchPlugin_Line::ID() &&
 276         aOtherFea && aOtherFea->getKind() != SketchPlugin_Line::ID()) {
 277       theError = "At least one feature should be a line";
 278       return false;
 279     }
 280     else if (isSpline(aRefFea) || isSpline(aOtherFea)) {
 281       theError = "B-spline is not supported";
 282       return false;
 283     }
 284   }
 285   else {
 286     theError = "It uses an empty object";
 287     return false;
 288   }
 289
 290   return true;
 291 }
 292
 293 bool SketchPlugin_NotFixedValidator::isValid(const AttributePtr& theAttribute,
 294                                              const std::list<std::string>& theArguments,
 295                                              Events_InfoMessage& theError) const
 296 {
 297   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 298     theError = "The attribute with the %1 type is not processed";
 299     theError.arg(theAttribute->attributeType());
 300     return false;
 301   }
 302
 303   std::shared_ptr<SketchPlugin_Feature> aFeature =
 304       std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
 305   if (!aFeature)
 306     return true;
 307
 308   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 309
 310   SketchPlugin_Sketch* aSketch = aFeature->sketch();
 311   int aNbFeatures = aSketch->numberOfSubs();
 312   for (int anInd = 0; anInd < aNbFeatures; anInd++) {
 313     FeaturePtr aSubFeature = aSketch->subFeature(anInd);
 314     if (aSubFeature->getKind() != SketchPlugin_ConstraintRigid::ID() || aSubFeature == aFeature)
 315       continue;
 316     AttributeRefAttrPtr aRAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 317         aSubFeature->attribute(SketchPlugin_ConstraintRigid::ENTITY_A()));
 318     if (aRefAttr->isObject()) {
 319       if (aRefAttr->object() == aRAttr->object()) {
 320         ObjectPtr anObject = aRefAttr->object();
 321         std::string aName = anObject.get() ? anObject->data()->name() : "";
 322         theError = "The object %1 has been already fixed.";
 323         theError.arg(aName);
 324         return false;
 325       }
 326     }
 327     else if (aRefAttr->attr() == aRAttr->attr()) {
 328       AttributePtr anAttribute = aRefAttr->attr();
 329       std::string aName = anAttribute.get() ? anAttribute->id() : "";
 330       theError = "The attribute %1 has been already fixed.";
 331       theError.arg(aName);
 332       return false;
 333     }
 334   }
 335   return true;
 336 }
 337
 338 bool SketchPlugin_EqualAttrValidator::isValid(const AttributePtr& theAttribute,
 339                                               const std::list<std::string>& theArguments,
 340                                               Events_InfoMessage& theError) const
 341 {
 342   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 343     theError = "The attribute with the %1 type is not processed";
 344     theError.arg(theAttribute->attributeType());
 345     return false;
 346   }
 347
 348   std::string aParamA = theArguments.front();
 349   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 350   AttributeRefAttrPtr aRefAttr[2];
 351   aRefAttr[0] = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 352   aRefAttr[1] = aFeature->data()->refattr(aParamA);
 353
 354   if (!aRefAttr[0]->isObject() || !aRefAttr[1]->isObject()) {
 355     theError = "Attributes can not be used in equal constraint";
 356     return false;
 357   }
 358
 359   std::string aType[2];
 360   std::list<std::string> anArguments;
 361   for (int i = 0; i < 2; i++) {
 362     aFeature = ModelAPI_Feature::feature(aRefAttr[i]->object());
 363     if (!aFeature.get())
 364       return true;
 365
 366     aType[i] = aFeature->getKind();
 367     if (aFeature->getKind() != SketchPlugin_Line::ID() &&
 368         aFeature->getKind() != SketchPlugin_Circle::ID() &&
 369         aFeature->getKind() != SketchPlugin_Arc::ID() &&
 370         aFeature->getKind() != SketchPlugin_Ellipse::ID() &&
 371         aFeature->getKind() != SketchPlugin_EllipticArc::ID()) {
 372       theError = "The %1 feature is not supported by the Equal constraint.";
 373       theError.arg(aFeature->getKind());
 374       // wrong type of attribute
 375       return false;
 376     }
 377   }
 378
 379   bool isOk = aType[0] == aType[1];
 380   if (!isOk) {
 381     // circle and arc may be equal
 382     isOk = (aType[0] == SketchPlugin_Arc::ID() && aType[1] == SketchPlugin_Circle::ID())
 383         || (aType[0] == SketchPlugin_Circle::ID() && aType[1] == SketchPlugin_Arc::ID());
 384   }
 385   if (!isOk) {
 386     // ellipse and elliptic arc may be equal
 387     isOk = (aType[0] == SketchPlugin_EllipticArc::ID() && aType[1] == SketchPlugin_Ellipse::ID())
 388         || (aType[0] == SketchPlugin_Ellipse::ID() && aType[1] == SketchPlugin_EllipticArc::ID());
 389   }
 390   if (!isOk) {
 391     theError = "Features with kinds %1 and %2 can not be equal.";
 392     theError.arg(aType[0]).arg(aType[1]);
 393     return false;
 394   }
 395   return true;
 396 }
 397
 398 bool SketchPlugin_MirrorAttrValidator::isValid(const AttributePtr& theAttribute,
 399                                                const std::list<std::string>& theArguments,
 400                                                Events_InfoMessage& theError) const
 401 {
 402   if (theAttribute->attributeType() != ModelAPI_AttributeRefList::typeId()) {
 403     theError = "The attribute with the %1 type is not processed";
 404     theError.arg(theAttribute->attributeType());
 405     return false;
 406   }
 407
 408   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 409   AttributeRefListPtr aSelAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(theAttribute);
 410
 411   AttributeRefListPtr aRefListOfMirrored = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 412       aFeature->attribute(SketchPlugin_Constraint::ENTITY_C()));
 413   std::list<ObjectPtr> aMirroredObjects = aRefListOfMirrored->list();
 414
 415   for(int anInd = 0; anInd < aSelAttr->size(); anInd++) {
 416     ObjectPtr aSelObject = aSelAttr->object(anInd);
 417     std::string aName = aSelObject.get() ? aSelObject->data()->name() : "";
 418     std::list<ObjectPtr>::iterator aMirIter = aMirroredObjects.begin();
 419     for (; aMirIter != aMirroredObjects.end(); aMirIter++)
 420       if (aSelObject == *aMirIter) {
 421         theError = "The object %1 is a result of mirror";
 422         theError.arg(aName);
 423         return false;
 424       }
 425   }
 426   return true;
 427 }
 428
 429 bool SketchPlugin_CoincidenceAttrValidator::isValid(const AttributePtr& theAttribute,
 430                                                     const std::list<std::string>& theArguments,
 431                                                     Events_InfoMessage& theError) const
 432 {
 433   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 434     theError = "The attribute with the %1 type is not processed";
 435     theError.arg(theAttribute->attributeType());
 436     return false;
 437   }
 438
 439   // there is a check whether the feature contains a point and a linear edge or two point values
 440   std::string aParamA = theArguments.front();
 441   SessionPtr aMgr = ModelAPI_Session::get();
 442   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 443
 444   FeaturePtr aConstraint = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 445   AttributeRefAttrPtr aRefAttrA = aConstraint->data()->refattr(aParamA);
 446   if (!aRefAttrA) {
 447     theError = "The %1 attribute should be %2";
 448     theError.arg(aParamA).arg(ModelAPI_AttributeRefAttr::typeId());
 449     return false;
 450   }
 451
 452   AttributeRefAttrPtr aRefAttrB =
 453     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 454
 455   // first attribute is a point, it may coincide with any object
 456   if (!aRefAttrA->isObject())
 457     return true;
 458   else {
 459     ObjectPtr anObject = aRefAttrA->object();
 460     if (!anObject.get()) {
 461       theError = "%1 attribute has an empty object";
 462       theError.arg(aParamA);
 463       return false;
 464     }
 465     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrA->object());
 466     if (!aFeature.get()) {
 467       theError = "%1 attribute has an empty feature";
 468       theError.arg(aParamA);
 469       return false;
 470     }
 471
 472     if (aFeature->getKind() == SketchPlugin_Point::ID())
 473       return true;
 474   }
 475
 476   // second attribute is a point, it may coincide with any object
 477   if (!aRefAttrB->isObject())
 478     return true;
 479   else {
 480     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrB->object());
 481     if (!aFeature) {
 482       theError = "%1 attribute has an empty object";
 483       theError.arg(theAttribute->id());
 484       return false;
 485     }
 486     if (aFeature->getKind() == SketchPlugin_Point::ID())
 487       return true;
 488   }
 489   theError = "There is no an attribute filled by a point";
 490   return false;
 491 }
 492
 493
 494 bool SketchPlugin_CopyValidator::isValid(const AttributePtr& theAttribute,
 495                                          const std::list<std::string>& theArguments,
 496                                          Events_InfoMessage& theError) const
 497 {
 498   if (theAttribute->attributeType() != ModelAPI_AttributeRefList::typeId()) {
 499     theError = "The attribute with the %1 type is not processed";
 500     theError.arg(theAttribute->attributeType());
 501     return false;
 502   }
 503
 504   FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 505   AttributeRefListPtr aSelAttr =
 506     std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(theAttribute);
 507
 508   AttributeRefListPtr aRefListOfInitial = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 509       aFeature->attribute(SketchPlugin_Constraint::ENTITY_A()));
 510   AttributeRefListPtr aRefListOfCopied = std::dynamic_pointer_cast<ModelAPI_AttributeRefList>(
 511       aFeature->attribute(SketchPlugin_Constraint::ENTITY_B()));
 512   std::list<ObjectPtr> anInitialObjects = aRefListOfInitial->list();
 513   std::list<ObjectPtr> aCopiedObjects = aRefListOfCopied->list();
 514
 515   std::list<ObjectPtr>::iterator anObjIter;
 516   for(int anInd = 0; anInd < aSelAttr->size(); anInd++) {
 517     ObjectPtr aSelObject = aSelAttr->object(anInd);
 518     anObjIter = anInitialObjects.begin();
 519     for (; anObjIter != anInitialObjects.end(); anObjIter++)
 520       if (aSelObject == *anObjIter)
 521         break;
 522     if (anObjIter != anInitialObjects.end())
 523       continue;
 524     anObjIter = aCopiedObjects.begin();
 525     for (; anObjIter != aCopiedObjects.end(); anObjIter++)
 526       if (aSelObject == *anObjIter) {
 527         std::string aName = aSelObject.get() ? aSelObject->data()->name() : "";
 528         theError = "The object %1 is a result of copy";
 529         theError.arg(aName);
 530         return false;
 531       }
 532   }
 533   return true;
 534 }
 535
 536 bool SketchPlugin_SolverErrorValidator::isValid(
 537   const std::shared_ptr<ModelAPI_Feature>& theFeature,
 538   const std::list<std::string>& theArguments,
 539   Events_InfoMessage& theError) const
 540 {
 541   AttributeStringPtr aAttributeString = theFeature->string(SketchPlugin_Sketch::SOLVER_ERROR());
 542
 543   if (!aAttributeString->value().empty()) {
 544     theError = aAttributeString->value();
 545     return false;
 546   }
 547
 548   return true;
 549 }
 550
 551 bool SketchPlugin_SolverErrorValidator::isNotObligatory(std::string theFeature,
 552                                                         std::string theAttribute)
 553 {
 554   return true;
 555 }
 556
 557 static bool hasSameTangentFeature(const std::set<AttributePtr>& theRefsList,
 558                                   const FeaturePtr theFeature)
 559 {
 560   for(std::set<AttributePtr>::const_iterator
 561       anIt = theRefsList.cbegin(); anIt != theRefsList.cend(); ++anIt) {
 562     std::shared_ptr<ModelAPI_Attribute> aAttr = (*anIt);
 563     FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aAttr->owner());
 564     if (!aFeature)
 565       continue;
 566     if (aFeature->getKind() == SketchPlugin_ConstraintTangent::ID()) {
 567       AttributeRefAttrPtr anAttrRefA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 568         aFeature->attribute(SketchPlugin_ConstraintTangent::ENTITY_A()));
 569       AttributeRefAttrPtr anAttrRefB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 570         aFeature->attribute(SketchPlugin_ConstraintTangent::ENTITY_B()));
 571       if(anAttrRefA.get()) {
 572         ResultPtr aResA = std::dynamic_pointer_cast<ModelAPI_Result>(anAttrRefA->object());
 573         if(aResA.get()) {
 574           DocumentPtr aDoc = aResA->document();
 575           if(aDoc.get()) {
 576             FeaturePtr aFeatureA = aDoc->feature(aResA);
 577             if(aFeatureA.get() && aFeatureA == theFeature) {
 578               return true;
 579             }
 580           }
 581         }
 582       }
 583       if(anAttrRefB.get()) {
 584         ResultPtr aResB = std::dynamic_pointer_cast<ModelAPI_Result>(anAttrRefB->object());
 585         if(aResB.get()) {
 586           DocumentPtr aDoc = aResB->document();
 587           if(aDoc.get()) {
 588             FeaturePtr aFeatureB = aDoc->feature(aResB);
 589             if(aFeatureB.get() && aFeatureB == theFeature) {
 590               return true;
 591             }
 592           }
 593         }
 594       }
 595     }
 596   }
 597   return false;
 598 }
 599
 600 static bool isPointPointCoincidence(const FeaturePtr& theCoincidence)
 601 {
 602   AttributeRefAttrPtr aRefAttr[2] = {
 603       theCoincidence->refattr(SketchPlugin_Constraint::ENTITY_A()),
 604       theCoincidence->refattr(SketchPlugin_Constraint::ENTITY_B())
 605   };
 606
 607   bool arePoints = true;
 608   for (int i = 0; i < 2 && arePoints; ++i) {
 609     if (aRefAttr[i]->isObject()) {
 610       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr[i]->object());
 611       arePoints = aFeature.get() && aFeature->getKind() == SketchPlugin_Point::ID();
 612     } else
 613       arePoints = aRefAttr[i]->attr().get() != NULL;
 614   }
 615   return arePoints;
 616 }
 617
 618 bool SketchPlugin_FilletVertexValidator::isValid(const AttributePtr& theAttribute,
 619                                                  const std::list<std::string>& theArguments,
 620                                                  Events_InfoMessage& theError) const
 621 {
 622   AttributeRefAttrPtr aPointRefAttr =
 623     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 624   if(!aPointRefAttr.get()) {
 625     theError = "Error: Point not selected.";
 626     return false;
 627   }
 628
 629   AttributePtr aPointAttribute = aPointRefAttr->attr();
 630   if (!aPointAttribute.get()) {
 631     theError = "Error: Bad point selected.";
 632     return false;
 633   }
 634   std::shared_ptr<GeomAPI_Pnt2d> aSelectedPnt =
 635     std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aPointAttribute)->pnt();
 636
 637   // Obtain constraint coincidence for the fillet point.
 638   const std::set<AttributePtr>& aRefsList = aPointAttribute->owner()->data()->refsToMe();
 639   FeaturePtr aConstraintCoincidence;
 640   for(std::set<AttributePtr>::const_iterator anIt = aRefsList.cbegin();
 641       anIt != aRefsList.cend(); ++anIt) {
 642     std::shared_ptr<ModelAPI_Attribute> aAttr = (*anIt);
 643     FeaturePtr aConstrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aAttr->owner());
 644     if (aConstrFeature->getKind() == SketchPlugin_ConstraintCoincidence::ID()) {
 645       if (!isPointPointCoincidence(aConstrFeature))
 646         continue;
 647
 648       AttributeRefAttrPtr anAttrRefA = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 649         aConstrFeature->attribute(SketchPlugin_ConstraintCoincidence::ENTITY_A()));
 650       AttributeRefAttrPtr anAttrRefB = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
 651         aConstrFeature->attribute(SketchPlugin_ConstraintCoincidence::ENTITY_B()));
 652
 653       AttributePtr anAttrA = anAttrRefA->attr();
 654       if(aPointAttribute == anAttrA) {
 655         aConstraintCoincidence = aConstrFeature;
 656         break;
 657       }
 658
 659       AttributePtr anAttrB = anAttrRefB->attr();
 660       if(aPointAttribute == anAttrB) {
 661         aConstraintCoincidence = aConstrFeature;
 662         break;
 663       }
 664     }
 665   }
 666
 667   if(!aConstraintCoincidence.get()) {
 668     theError = "Error: one of the selected point does not have coincidence.";
 669     return false;
 670   }
 671
 672   // Get coincides from constraint.
 673   std::set<FeaturePtr> aCoinsides;
 674   SketchPlugin_Tools::findCoincidences(aConstraintCoincidence,
 675                                         SketchPlugin_ConstraintCoincidence::ENTITY_A(),
 676                                         aCoinsides,
 677                                         true);
 678   SketchPlugin_Tools::findCoincidences(aConstraintCoincidence,
 679                                         SketchPlugin_ConstraintCoincidence::ENTITY_B(),
 680                                         aCoinsides,
 681                                         true);
 682
 683   // Remove points and external lines from set of coincides.
 684   std::set<FeaturePtr> aNewSetOfCoincides;
 685   for(std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 686       anIt != aCoinsides.end(); ++anIt) {
 687     std::shared_ptr<SketchPlugin_SketchEntity> aSketchEntity =
 688       std::dynamic_pointer_cast<SketchPlugin_SketchEntity>(*anIt);
 689     if(aSketchEntity.get() && (aSketchEntity->isCopy() || aSketchEntity->isExternal())) {
 690       continue;
 691     }
 692     if((*anIt)->getKind() != SketchPlugin_Line::ID() &&
 693         (*anIt)->getKind() != SketchPlugin_Arc::ID()) {
 694           continue;
 695     }
 696     if((*anIt)->getKind() == SketchPlugin_Arc::ID()) {
 697       AttributePtr anArcCenter = (*anIt)->attribute(SketchPlugin_Arc::CENTER_ID());
 698       std::shared_ptr<GeomAPI_Pnt2d> anArcCenterPnt =
 699         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(anArcCenter)->pnt();
 700       double aDistSelectedArcCenter = aSelectedPnt->distance(anArcCenterPnt);
 701       if(aDistSelectedArcCenter < tolerance) {
 702         continue;
 703       }
 704     }
 705     aNewSetOfCoincides.insert(*anIt);
 706   }
 707   aCoinsides = aNewSetOfCoincides;
 708
 709   // If we still have more than two coincides remove auxilary entities from set of coincides.
 710   if(aCoinsides.size() > 2) {
 711     aNewSetOfCoincides.clear();
 712     for(std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 713         anIt != aCoinsides.end(); ++anIt) {
 714       if(!(*anIt)->boolean(SketchPlugin_SketchEntity::AUXILIARY_ID())->value()) {
 715         aNewSetOfCoincides.insert(*anIt);
 716       }
 717     }
 718     aCoinsides = aNewSetOfCoincides;
 719   }
 720
 721   if(aCoinsides.size() != 2) {
 722     theError = "Error: One of the selected points does not have two suitable edges for fillet.";
 723     return false;
 724   }
 725
 726   // Check that selected edges don't have tangent constraint.
 727   std::set<FeaturePtr>::iterator anIt = aCoinsides.begin();
 728   FeaturePtr aFirstFeature = *anIt++;
 729   FeaturePtr aSecondFeature = *anIt;
 730   const std::set<AttributePtr>& aFirstFeatureRefsList = aFirstFeature->data()->refsToMe();
 731   if(hasSameTangentFeature(aFirstFeatureRefsList, aSecondFeature)) {
 732     theError = "Error: Edges in selected point has tangent constraint.";
 733     return false;
 734   }
 735
 736   std::list<ResultPtr> aFirstResults = aFirstFeature->results();
 737   for(std::list<ResultPtr>::iterator aResIt = aFirstResults.begin();
 738       aResIt != aFirstResults.end(); ++aResIt) {
 739     ResultPtr aRes = *aResIt;
 740     const std::set<AttributePtr>& aResRefsList = aRes->data()->refsToMe();
 741     if(hasSameTangentFeature(aResRefsList, aSecondFeature)) {
 742       theError = "Error: Edges in selected point has tangent constraint.";
 743       return false;
 744     }
 745   }
 746
 747   // Check the features are not tangent
 748   std::shared_ptr<GeomAPI_Shape> aFirstShape = aFirstFeature->lastResult()->shape();
 749   std::shared_ptr<GeomAPI_Shape> aSecondShape = aSecondFeature->lastResult()->shape();
 750   if (!aFirstShape || !aFirstShape->isEdge() ||
 751       !aSecondShape || !aSecondShape->isEdge()) {
 752     theError = "Error: At least on of the features is not an edge";
 753     return false;
 754   }
 755
 756   std::shared_ptr<GeomAPI_Edge> anEdge1 = std::dynamic_pointer_cast<GeomAPI_Edge>(aFirstShape);
 757   std::shared_ptr<GeomAPI_Edge> anEdge2 = std::dynamic_pointer_cast<GeomAPI_Edge>(aSecondShape);
 758
 759   static const double TOL = 1.e-7;
 760   if (anEdge1->isLine() && anEdge2->isLine()) {
 761     // Check that lines not collinear
 762     std::shared_ptr<GeomAPI_Dir> aDir1 = anEdge1->line()->direction();
 763     std::shared_ptr<GeomAPI_Dir> aDir2 = anEdge2->line()->direction();
 764     double aCross = aDir1->cross(aDir2)->squareModulus();
 765     if (aCross < TOL * TOL)
 766       return false;
 767   } else if (anEdge1->isArc() && anEdge2->isArc()) {
 768     // check the circles are not tangent
 769     std::shared_ptr<GeomAPI_Circ> aCirc1 = anEdge1->circle();
 770     std::shared_ptr<GeomAPI_Circ> aCirc2 = anEdge2->circle();
 771     double aDistCC = aCirc1->center()->distance(aCirc2->center());
 772     double aRadSum = aCirc1->radius() + aCirc2->radius();
 773     double aRadDiff = fabs(aCirc1->radius() - aCirc2->radius());
 774     if (fabs(aDistCC - aRadSum) < TOL || fabs(aDistCC - aRadDiff) < TOL)
 775       return false;
 776   } else {
 777     // check whether line and arc are tangent
 778     std::shared_ptr<GeomAPI_Circ> aCirc;
 779     std::shared_ptr<GeomAPI_Lin> aLine;
 780     if (anEdge1->isLine()) {
 781       aLine = anEdge1->line();
 782       aCirc = anEdge2->circle();
 783     } else {
 784       aCirc = anEdge1->circle();
 785       aLine = anEdge2->line();
 786     }
 787
 788     double aDistCL = aLine->distance(aCirc->center());
 789     if (fabs(aDistCL - aCirc->radius()) < TOL)
 790       return false;
 791   }
 792
 793   return true;
 794 }
 795
 796 bool SketchPlugin_MiddlePointAttrValidator::isValid(const AttributePtr& theAttribute,
 797                                                     const std::list<std::string>& theArguments,
 798                                                     Events_InfoMessage& theError) const
 799 {
 800   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 801     theError = "The attribute with the %1 type is not processed";
 802     theError.arg(theAttribute->attributeType());
 803     return false;
 804   }
 805
 806   // there is a check whether the feature contains a point and a linear edge or two point values
 807   std::string aParamA = theArguments.front();
 808   SessionPtr aMgr = ModelAPI_Session::get();
 809   ModelAPI_ValidatorsFactory* aFactory = aMgr->validators();
 810
 811   FeaturePtr anAttributeFeature =
 812     std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 813   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 814   AttributeRefAttrPtr anOtherAttr = anAttributeFeature->data()->refattr(aParamA);
 815
 816   AttributeRefAttrPtr aRefAttrs[2] = {aRefAttr, anOtherAttr};
 817   int aNbPoints = 0;
 818   int aNbLines = 0;
 819   for (int i = 0; i < 2; ++i) {
 820     if (!aRefAttrs[i]->isObject())
 821       ++aNbPoints;
 822     else {
 823       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttrs[i]->object());
 824       if (!aFeature) {
 825         if (aNbPoints + aNbLines != 0)
 826           return true;
 827         else continue;
 828       }
 829
 830       if (aFeature->getKind() == SketchPlugin_Point::ID())
 831         ++aNbPoints;
 832       else if (aFeature->getKind() == SketchPlugin_Line::ID() ||
 833                aFeature->getKind() == SketchPlugin_Arc::ID() ||
 834                aFeature->getKind() == SketchPlugin_EllipticArc::ID())
 835         ++aNbLines;
 836     }
 837   }
 838
 839   if (aNbPoints != 1 || aNbLines != 1) {
 840     theError = "Middle point constraint allows points and lines only";
 841     return false;
 842   }
 843   return true;
 844 }
 845
 846 bool SketchPlugin_ArcTangentPointValidator::isValid(const AttributePtr& theAttribute,
 847                                                     const std::list<std::string>& /*theArguments*/,
 848                                                     Events_InfoMessage& theError) const
 849 {
 850   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 851     theError = "The attribute with the %1 type is not processed";
 852     theError.arg(theAttribute->attributeType());
 853     return false;
 854   }
 855   FeaturePtr anOwner = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 856   AttributeStringPtr anArcTypeAttr = anOwner->string(SketchPlugin_MacroArc::ARC_TYPE());
 857   if (anArcTypeAttr && anArcTypeAttr->value() != SketchPlugin_MacroArc::ARC_TYPE_BY_TANGENT_EDGE())
 858     return true; // not applicable for non-tangent arcs
 859
 860   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 861   AttributePtr anAttr = aRefAttr->attr();
 862   if (!anAttr) {
 863     theError = "The attribute %1 should be a point";
 864     theError.arg(theAttribute->id());
 865     return false;
 866   }
 867
 868   FeaturePtr anAttrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(anAttr->owner());
 869   const std::string& aFeatureType = anAttrFeature->getKind();
 870   if (aFeatureType == SketchPlugin_Arc::ID()) {
 871     // selected point should not be a center of arc
 872     const std::string& aPntId = anAttr->id();
 873     if (aPntId != SketchPlugin_Arc::START_ID() && aPntId != SketchPlugin_Arc::END_ID()) {
 874       theError = "The attribute %1 is not supported";
 875       theError.arg(aPntId);
 876       return false;
 877     }
 878   }
 879   else if (aFeatureType == SketchPlugin_Line::ID()) {
 880     // selected point should be bound point of line
 881     const std::string& aPntId = anAttr->id();
 882     if (aPntId != SketchPlugin_Line::START_ID() && aPntId != SketchPlugin_Line::END_ID()) {
 883       theError = "The attribute %1 is not supported";
 884       theError.arg(aPntId);
 885       return false;
 886     }
 887   }
 888   else {
 889     theError = "Unable to build tangent arc on %1";
 890     theError.arg(anAttrFeature->getKind());
 891     return false;
 892   }
 893
 894   return true;
 895 }
 896
 897 bool SketchPlugin_ArcTransversalPointValidator::isValid(
 898     const AttributePtr& theAttribute,
 899     const std::list<std::string>& /*theArguments*/,
 900     Events_InfoMessage& theError) const
 901 {
 902   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
 903     theError = "The attribute with the %1 type is not processed";
 904     theError.arg(theAttribute->attributeType());
 905     return false;
 906   }
 907   FeaturePtr anOwner = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
 908   AttributeStringPtr anArcTypeAttr = anOwner->string(SketchPlugin_MacroArc::ARC_TYPE());
 909   if (anArcTypeAttr &&
 910       anArcTypeAttr->value() != SketchPlugin_MacroArc::ARC_TYPE_BY_TRANSVERSAL_LINE())
 911     return true; // not applicable for non-transversal arcs
 912
 913   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
 914   AttributePtr anAttr = aRefAttr->attr();
 915   if (!anAttr) {
 916     theError = "The attribute %1 should be a point";
 917     theError.arg(theAttribute->id());
 918     return false;
 919   }
 920
 921   FeaturePtr anAttrFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(anAttr->owner());
 922   const std::string& aFeatureType = anAttrFeature->getKind();
 923   if (aFeatureType == SketchPlugin_Line::ID()) {
 924     // selected point should be bound point of line
 925     const std::string& aPntId = anAttr->id();
 926     if (aPntId != SketchPlugin_Line::START_ID() && aPntId != SketchPlugin_Line::END_ID()) {
 927       theError = "The attribute %1 is not supported";
 928       theError.arg(aPntId);
 929       return false;
 930     }
 931   }
 932   else {
 933     theError = "Unable to build perpendicular arc on %1";
 934     theError.arg(anAttrFeature->getKind());
 935     return false;
 936   }
 937
 938   return true;
 939 }
 940
 941 bool SketchPlugin_IntersectionValidator::isValid(const AttributePtr& theAttribute,
 942                                                  const std::list<std::string>& theArguments,
 943                                                  Events_InfoMessage& theError) const
 944 {
 945   if (theAttribute->attributeType() != ModelAPI_AttributeSelection::typeId()) {
 946     theError = "The attribute with the %1 type is not processed";
 947     theError.arg(theAttribute->attributeType());
 948     return false;
 949   }
 950   AttributeSelectionPtr anExternalAttr =
 951       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(theAttribute);
 952   std::shared_ptr<GeomAPI_Edge> anEdge;
 953   if (anExternalAttr && anExternalAttr->value() && anExternalAttr->value()->isEdge()) {
 954     anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(anExternalAttr->value()));
 955   } else if(anExternalAttr->context() && anExternalAttr->context()->shape() &&
 956             anExternalAttr->context()->shape()->isEdge()) {
 957     anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(anExternalAttr->context()->shape()));
 958   }
 959
 960   if (!anEdge) {
 961     theError = "The attribute %1 should be an edge";
 962     theError.arg(theAttribute->id());
 963     return false;
 964   }
 965
 966   // find a sketch
 967   std::shared_ptr<SketchPlugin_Sketch> aSketch;
 968   std::set<AttributePtr> aRefs = anExternalAttr->owner()->data()->refsToMe();
 969   std::set<AttributePtr>::const_iterator anIt = aRefs.begin();
 970   for (; anIt != aRefs.end(); ++anIt) {
 971     CompositeFeaturePtr aComp =
 972         std::dynamic_pointer_cast<ModelAPI_CompositeFeature>((*anIt)->owner());
 973     if (aComp && aComp->getKind() == SketchPlugin_Sketch::ID()) {
 974       aSketch = std::dynamic_pointer_cast<SketchPlugin_Sketch>(aComp);
 975       break;
 976     }
 977   }
 978   if (!aSketch) {
 979     theError = "There is no sketch referring to the current feature";
 980     return false;
 981   }
 982
 983   // check the edge is intersected with sketch plane
 984   std::shared_ptr<GeomAPI_Pln> aPlane = aSketch->plane();
 985
 986   std::list<GeomPointPtr> anIntersectionsPoints;
 987   anEdge->intersectWithPlane(aPlane, anIntersectionsPoints);
 988   if (anIntersectionsPoints.empty()) {
 989     theError = "The edge is not intersected with sketch plane";
 990     return false;
 991   }
 992   return true;
 993 }
 994
 995 bool SketchPlugin_SplitValidator::isValid(const AttributePtr& theAttribute,
 996                                           const std::list<std::string>& theArguments,
 997                                           Events_InfoMessage& theError) const
 998 {
 999   bool aValid = false;
1000
1001   if (theAttribute->attributeType() != ModelAPI_AttributeReference::typeId()) {
1002     theError = "The attribute with the %1 type is not processed";
1003     theError.arg(theAttribute->attributeType());
1004     return aValid;
1005   }
1006   AttributeReferencePtr aFeatureAttr =
1007             std::dynamic_pointer_cast<ModelAPI_AttributeReference>(theAttribute);
1008   std::shared_ptr<SketchPlugin_Feature> aSplitFeature =
1009     std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
1010
1011   ObjectPtr anAttrObject = aFeatureAttr->value();
1012   if (!anAttrObject) {
1013     AttributePtr aPreviewAttr = aSplitFeature->attribute(SketchPlugin_Trim::PREVIEW_OBJECT());
1014     aFeatureAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(aPreviewAttr);
1015     anAttrObject = aFeatureAttr->value();
1016   }
1017
1018   FeaturePtr anAttrFeature = ModelAPI_Feature::feature(anAttrObject);
1019   if (!anAttrFeature)
1020     return aValid;
1021
1022   // B-splines are not supported by the Split yet
1023   if (anAttrFeature->getKind() == SketchPlugin_BSpline::ID() ||
1024       anAttrFeature->getKind() == SketchPlugin_BSplinePeriodic::ID()) {
1025     theError = "Not supported";
1026     return false;
1027   }
1028
1029   std::set<ResultPtr> anEdgeShapes;
1030   ModelGeomAlgo_Shape::shapesOfType(anAttrFeature, GeomAPI_Shape::EDGE, anEdgeShapes);
1031   if (anEdgeShapes.empty() || anEdgeShapes.size() > 1 /*there case has not existed yet*/)
1032     return aValid;
1033
1034   // coincidences to the feature
1035   std::set<std::shared_ptr<GeomDataAPI_Point2D> > aRefAttributes;
1036   ModelGeomAlgo_Point2D::getPointsOfReference(anAttrFeature,
1037                       SketchPlugin_ConstraintCoincidence::ID(),
1038                       aRefAttributes, SketchPlugin_Point::ID(), SketchPlugin_Point::COORD_ID());
1039
1040   GeomShapePtr anAttrShape = (*anEdgeShapes.begin())->shape();
1041   std::shared_ptr<SketchPlugin_Feature> aSFeature =
1042                                 std::dynamic_pointer_cast<SketchPlugin_Feature>(anAttrFeature);
1043   if (!aSFeature || aSFeature->isCopy())
1044     return false;
1045   SketchPlugin_Sketch* aSketch = aSFeature->sketch();
1046
1047   std::shared_ptr<ModelAPI_Data> aData = aSketch->data();
1048   std::shared_ptr<GeomDataAPI_Point> aC = std::dynamic_pointer_cast<GeomDataAPI_Point>(
1049       aData->attribute(SketchPlugin_Sketch::ORIGIN_ID()));
1050   std::shared_ptr<GeomDataAPI_Dir> aX = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
1051       aData->attribute(SketchPlugin_Sketch::DIRX_ID()));
1052   std::shared_ptr<GeomDataAPI_Dir> aNorm = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
1053       aData->attribute(SketchPlugin_Sketch::NORM_ID()));
1054   std::shared_ptr<GeomAPI_Dir> aDirY(new GeomAPI_Dir(aNorm->dir()->cross(aX->dir())));
1055
1056   typedef std::map<std::shared_ptr<GeomAPI_Pnt>,
1057                     std::pair<std::list<std::shared_ptr<GeomDataAPI_Point2D> >,
1058                               std::list<std::shared_ptr<ModelAPI_Object> > > > PointToRefsMap;
1059   PointToRefsMap aPointsInfo;
1060
1061   ModelGeomAlgo_Point2D::getPointsInsideShape(anAttrShape, aRefAttributes, aC->pnt(),
1062                                               aX->dir(), aDirY, aPointsInfo);
1063   int aCoincidentToFeature = (int)aPointsInfo.size();
1064   if (anAttrFeature->getKind() == SketchPlugin_Circle::ID() ||
1065       anAttrFeature->getKind() == SketchPlugin_Ellipse::ID())
1066     aValid = aCoincidentToFeature >= 2;
1067   else
1068     aValid = aCoincidentToFeature >= 1;
1069
1070   return aValid;
1071 }
1072
1073 bool SketchPlugin_TrimValidator::isValid(const AttributePtr& theAttribute,
1074                                          const std::list<std::string>& theArguments,
1075                                          Events_InfoMessage& theError) const
1076 {
1077   bool aValid = false;
1078
1079   if (theAttribute->attributeType() != ModelAPI_AttributeReference::typeId()) {
1080     theError = "The attribute with the %1 type is not processed";
1081     theError.arg(theAttribute->attributeType());
1082     return aValid;
1083   }
1084   AttributeReferencePtr aBaseObjectAttr =
1085             std::dynamic_pointer_cast<ModelAPI_AttributeReference>(theAttribute);
1086
1087   std::shared_ptr<SketchPlugin_Feature> aTrimFeature =
1088                  std::dynamic_pointer_cast<SketchPlugin_Feature>(theAttribute->owner());
1089
1090   ObjectPtr aBaseObject = aBaseObjectAttr->value();
1091   if (!aBaseObject) {
1092     AttributePtr aPreviewAttr = aTrimFeature->attribute(SketchPlugin_Trim::PREVIEW_OBJECT());
1093     aBaseObjectAttr = std::dynamic_pointer_cast<ModelAPI_AttributeReference>(aPreviewAttr);
1094     aBaseObject = aBaseObjectAttr->value();
1095   }
1096
1097   FeaturePtr aBaseFeature = ModelAPI_Feature::feature(aBaseObject);
1098   if (!aBaseFeature)
1099     return aValid;
1100
1101   std::shared_ptr<SketchPlugin_Feature> aSketchFeature =
1102                                  std::dynamic_pointer_cast<SketchPlugin_Feature>(aBaseFeature);
1103   if (!aSketchFeature.get() || aSketchFeature->isCopy())
1104     return aValid;
1105
1106   // B-splines are not supported by the Trim yet
1107   if (aBaseFeature->getKind() == SketchPlugin_BSpline::ID() ||
1108       aBaseFeature->getKind() == SketchPlugin_BSplinePeriodic::ID()) {
1109     theError = "Not supported";
1110     return false;
1111   }
1112
1113   // point on feature
1114   AttributePoint2DPtr aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1115                        aTrimFeature->data()->attribute(SketchPlugin_Trim::PREVIEW_POINT()));
1116
1117   SketchPlugin_Sketch* aSketch = aTrimFeature->sketch();
1118
1119   std::shared_ptr<GeomAPI_Pnt2d> anAttributePnt2d = aPoint->pnt();
1120   std::shared_ptr<GeomAPI_Pnt> anAttributePnt = aSketch->to3D(anAttributePnt2d->x(),
1121                                                               anAttributePnt2d->y());
1122
1123   std::map<ObjectPtr, std::set<GeomShapePtr> > aCashedShapes;
1124   std::map<ObjectPtr, std::map<std::shared_ptr<GeomAPI_Pnt>,
1125            std::pair<std::list<std::shared_ptr<GeomDataAPI_Point2D> >,
1126                      std::list<std::shared_ptr<ModelAPI_Object> > > > > anObjectToPoints;
1127   SketchPlugin_SegmentationTools::fillObjectShapes(
1128       aTrimFeature.get(), aBaseObject, aCashedShapes, anObjectToPoints);
1129   const std::set<GeomShapePtr>& aShapes = aCashedShapes[aBaseObject];
1130
1131   return aShapes.size() > 1;
1132 }
1133
1134 bool SketchPlugin_ProjectionValidator::isValid(const AttributePtr& theAttribute,
1135                                                const std::list<std::string>& theArguments,
1136                                                Events_InfoMessage& theError) const
1137 {
1138   if (theAttribute->attributeType() != ModelAPI_AttributeSelection::typeId()) {
1139     theError = "The attribute with the %1 type is not processed";
1140     theError.arg(theAttribute->attributeType());
1141     return false;
1142   }
1143
1144   AttributeSelectionPtr aFeatureAttr =
1145       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(theAttribute);
1146   std::shared_ptr<GeomAPI_Edge> anEdge;
1147   std::shared_ptr<SketchPlugin_Feature> aSketchFeature;
1148   if (aFeatureAttr.get()) {
1149     GeomShapePtr aVal = aFeatureAttr->value();
1150     ResultPtr aRes = aFeatureAttr->context();
1151     if (aVal && aVal->isVertex())
1152       return true; // vertex is always could be projected
1153     if (aVal && aVal->isEdge()) {
1154       anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aFeatureAttr->value()));
1155     } else if(aRes && aRes->shape()) {
1156       if (aRes->shape()->isVertex())
1157         return true; // vertex is always could be projected
1158       else if (aRes->shape()->isEdge())
1159         anEdge = std::shared_ptr<GeomAPI_Edge>(new GeomAPI_Edge(aFeatureAttr->context()->shape()));
1160     }
1161
1162     // try to convert result to sketch feature
1163     if (aRes) {
1164       aSketchFeature =
1165         std::dynamic_pointer_cast<SketchPlugin_Feature>(ModelAPI_Feature::feature(aRes));
1166     }
1167   }
1168   if (!anEdge) {
1169     theError = "The attribute %1 should be an edge or vertex";
1170     theError.arg(theAttribute->id());
1171     return false;
1172   }
1173
1174   // find a sketch
1175   std::shared_ptr<SketchPlugin_Sketch> aSketch;
1176   std::set<AttributePtr> aRefs = theAttribute->owner()->data()->refsToMe();
1177   std::set<AttributePtr>::const_iterator anIt = aRefs.begin();
1178   for (; anIt != aRefs.end(); ++anIt) {
1179     CompositeFeaturePtr aComp =
1180         std::dynamic_pointer_cast<ModelAPI_CompositeFeature>((*anIt)->owner());
1181     if (aComp && aComp->getKind() == SketchPlugin_Sketch::ID()) {
1182       aSketch = std::dynamic_pointer_cast<SketchPlugin_Sketch>(aComp);
1183       break;
1184     }
1185   }
1186   if (!aSketch) {
1187     theError = "There is no sketch referring to the current feature";
1188     return false;
1189   }
1190   if (aSketchFeature && aSketch.get() == aSketchFeature->sketch()) {
1191     theError = "Unable to project feature from the same sketch";
1192     return false;
1193   }
1194
1195   std::shared_ptr<GeomAPI_Pln> aPlane = aSketch->plane();
1196   std::shared_ptr<GeomAPI_Dir> aNormal = aPlane->direction();
1197   std::shared_ptr<GeomAPI_Pnt> anOrigin = aPlane->location();
1198
1199   bool aValid = true;
1200   if (anEdge->isLine()) {
1201     std::shared_ptr<GeomAPI_Lin> aLine = anEdge->line();
1202     std::shared_ptr<GeomAPI_Dir> aLineDir = aLine->direction();
1203     double aDot = fabs(aNormal->dot(aLineDir));
1204     aValid = fabs(aDot - 1.0) >= tolerance * tolerance;
1205     if (!aValid)
1206       theError = "Error: Line is orthogonal to the sketch plane.";
1207   }
1208   else if (anEdge->isCircle() || anEdge->isArc()) {
1209     std::shared_ptr<GeomAPI_Circ> aCircle = anEdge->circle();
1210     std::shared_ptr<GeomAPI_Dir> aCircNormal = aCircle->normal();
1211     double aDot = fabs(aNormal->dot(aCircNormal));
1212     aValid = aDot >= tolerance * tolerance;
1213     if (!aValid)
1214       theError.arg(anEdge->isCircle() ? "Error: Circle is orthogonal to the sketch plane."
1215                                       : "Error: Arc is orthogonal to the sketch plane.");
1216   }
1217   else if (anEdge->isEllipse()) {
1218     std::shared_ptr<GeomAPI_Ellipse> anEllipse = anEdge->ellipse();
1219     std::shared_ptr<GeomAPI_Dir> anEllipseNormal = anEllipse->normal();
1220     double aDot = fabs(aNormal->dot(anEllipseNormal));
1221     aValid = fabs(aDot - 1.0) <= tolerance * tolerance;
1222     if (!aValid)
1223       theError.arg(anEdge->isClosed() ? "Error: Ellipse is orthogonal to the sketch plane."
1224                                       : "Error: Elliptic Arc is orthogonal to the sketch plane.");
1225   }
1226
1227   return aValid;
1228 }
1229
1230
1231 static std::set<FeaturePtr> common(const std::set<FeaturePtr>& theSet1,
1232                                    const std::set<FeaturePtr>& theSet2)
1233 {
1234   std::set<FeaturePtr> aCommon;
1235   if (theSet1.empty() || theSet2.empty())
1236     return aCommon;
1237
1238   std::set<FeaturePtr>::const_iterator anIt2 = theSet2.begin();
1239   for (; anIt2 != theSet2.end(); ++anIt2)
1240     if (theSet1.find(*anIt2) != theSet1.end())
1241       aCommon.insert(*anIt2);
1242   return aCommon;
1243 }
1244
1245 bool SketchPlugin_DifferentReferenceValidator::isValid(
1246     const AttributePtr& theAttribute,
1247     const std::list<std::string>& theArguments,
1248     Events_InfoMessage& theError) const
1249 {
1250   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1251
1252   int aNbFeaturesReferred = 0;
1253   int aNbAttributesReferred = 0;
1254   std::set<FeaturePtr> aCommonReferredFeatures;
1255
1256   // find all features referred by attributes listed in theArguments
1257   std::list<std::string>::const_iterator anArgIt = theArguments.begin();
1258   for (; anArgIt != theArguments.end(); ++anArgIt) {
1259     AttributeRefAttrPtr aRefAttr = anOwner->refattr(*anArgIt);
1260     if (!aRefAttr)
1261       continue;
1262
1263     std::set<FeaturePtr> aCoincidentFeatures;
1264     if (aRefAttr->isObject()) {
1265       FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->object());
1266       if (aFeature) {
1267         aCoincidentFeatures.insert(aFeature);
1268         aNbFeaturesReferred += 1;
1269       }
1270     } else {
1271       AttributePoint2DPtr aPoint =
1272           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
1273       if (aPoint) {
1274         aCoincidentFeatures = SketchPlugin_Tools::findFeaturesCoincidentToPoint(aPoint);
1275         aNbAttributesReferred += 1;
1276       }
1277     }
1278
1279     if (aCommonReferredFeatures.empty())
1280       aCommonReferredFeatures = aCoincidentFeatures;
1281     else
1282       aCommonReferredFeatures = common(aCommonReferredFeatures, aCoincidentFeatures);
1283
1284     if (aCommonReferredFeatures.empty())
1285       return true;
1286   }
1287
1288   bool isOk = aNbFeaturesReferred < 1;
1289   if (aNbFeaturesReferred == 1) {
1290     if (aCommonReferredFeatures.size() == 1) {
1291       FeaturePtr aFeature = *aCommonReferredFeatures.begin();
1292       isOk = aNbAttributesReferred <= 1 ||
1293              aFeature->getKind() == SketchPlugin_Circle::ID() ||
1294              aFeature->getKind() == SketchPlugin_Arc::ID();
1295     } else
1296       isOk = false;
1297   }
1298
1299   if (!isOk)
1300     theError = "Attributes are referred to the same feature";
1301   return isOk;
1302 }
1303
1304 bool SketchPlugin_DifferentPointReferenceValidator::isValid(
1305     const AttributePtr& theAttribute,
1306     const std::list<std::string>& theArguments,
1307     Events_InfoMessage& theError) const
1308 {
1309   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1310   std::set<AttributePoint2DPtr> aReferredCoincidentPoints;
1311
1312   // find all points referred by attributes listed in theArguments
1313   bool hasRefsToPoints = false;
1314   std::list<std::string>::const_iterator anArgIt = theArguments.begin();
1315   for (; anArgIt != theArguments.end(); ++anArgIt) {
1316     AttributeRefAttrPtr aRefAttr = anOwner->refattr(*anArgIt);
1317     if (!aRefAttr)
1318       continue;
1319
1320     if (!aRefAttr->isObject()) {
1321       AttributePoint2DPtr aPoint =
1322           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
1323       if (aReferredCoincidentPoints.empty())
1324         aReferredCoincidentPoints = SketchPlugin_Tools::findPointsCoincidentToPoint(aPoint);
1325       else if (aReferredCoincidentPoints.find(aPoint) == aReferredCoincidentPoints.end())
1326         return true; // non-coincident point has been found
1327       else
1328         hasRefsToPoints = true;
1329     }
1330   }
1331
1332   if (hasRefsToPoints)
1333     theError = "Attributes are referred to the same point";
1334   return !hasRefsToPoints;
1335 }
1336
1337 bool SketchPlugin_CirclePassedPointValidator::isValid(
1338     const AttributePtr& theAttribute,
1339     const std::list<std::string>&,
1340     Events_InfoMessage& theError) const
1341 {
1342   static const std::string aErrorMessage(
1343       "Passed point refers to the same feature as a center point");
1344
1345   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1346
1347   AttributeRefAttrPtr aCenterRef =
1348       anOwner->refattr(SketchPlugin_MacroCircle::CENTER_POINT_REF_ID());
1349   AttributeRefAttrPtr aPassedRef =
1350       anOwner->refattr(SketchPlugin_MacroCircle::PASSED_POINT_REF_ID());
1351
1352   if (!aPassedRef->isObject())
1353     return true;
1354
1355   FeaturePtr aPassedFeature = ModelAPI_Feature::feature(aPassedRef->object());
1356   if (!aPassedFeature)
1357     return true;
1358
1359   if (aCenterRef->isObject()) {
1360     if (aCenterRef->object() == aPassedRef->object()) {
1361       theError = aErrorMessage;
1362       return false;
1363     }
1364   } else {
1365     AttributePoint2DPtr aCenterPoint =
1366         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aCenterRef->attr());
1367     if (aCenterPoint) {
1368       std::set<FeaturePtr> aCoincidentFeatures =
1369           SketchPlugin_Tools::findFeaturesCoincidentToPoint(aCenterPoint);
1370       // check one of coincident features is a feature referred by passed point
1371       std::set<FeaturePtr>::const_iterator anIt = aCoincidentFeatures.begin();
1372       for(; anIt != aCoincidentFeatures.end(); ++anIt)
1373         if (*anIt == aPassedFeature) {
1374           theError = aErrorMessage;
1375           return false;
1376         }
1377     }
1378   }
1379   return true;
1380 }
1381
1382 bool SketchPlugin_ThirdPointValidator::isValid(
1383     const AttributePtr& theAttribute,
1384     const std::list<std::string>& theArguments,
1385     Events_InfoMessage& theError) const
1386 {
1387   FeaturePtr anOwner = ModelAPI_Feature::feature(theAttribute->owner());
1388   return arePointsNotOnLine(anOwner, theError) &&
1389          arePointsNotSeparated(anOwner, theArguments, theError);
1390 }
1391
1392 static std::shared_ptr<GeomAPI_Pnt2d> toPoint(const FeaturePtr& theMacroCircle,
1393                                               const std::string& thePointAttrName,
1394                                               const std::string& theRefPointAttrName)
1395 {
1396   AttributePoint2DPtr aPointAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
1397       theMacroCircle->attribute(thePointAttrName));
1398   AttributeRefAttrPtr aRefAttr = theMacroCircle->refattr(theRefPointAttrName);
1399
1400   std::shared_ptr<GeomAPI_Pnt2d> aPoint = aPointAttr->pnt();
1401   if (aRefAttr) {
1402     if (aRefAttr->isObject()) {
1403       // project a point onto selected feature
1404       std::shared_ptr<SketchPlugin_Feature> aFeature =
1405           std::dynamic_pointer_cast<SketchPlugin_Feature>(
1406           ModelAPI_Feature::feature(aRefAttr->object()));
1407       if (aFeature) {
1408         SketchPlugin_Sketch* aSketch = aFeature->sketch();
1409         std::shared_ptr<GeomAPI_Edge> anEdge =
1410             std::dynamic_pointer_cast<GeomAPI_Edge>(aFeature->lastResult()->shape());
1411         if (anEdge) {
1412           std::shared_ptr<GeomAPI_Pnt> aPoint3D = aSketch->to3D(aPoint->x(), aPoint->y());
1413           if (anEdge->isLine())
1414             aPoint3D = anEdge->line()->project(aPoint3D);
1415           else if (anEdge->isCircle())
1416             aPoint3D = anEdge->circle()->project(aPoint3D);
1417           if(aPoint3D)
1418             aPoint = aSketch->to2D(aPoint3D);
1419         }
1420       }
1421     } else {
1422       AttributePoint2DPtr anOtherPoint =
1423           std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aRefAttr->attr());
1424       if (anOtherPoint)
1425         aPoint = anOtherPoint->pnt(); // the reference point is much more precise, use it
1426     }
1427   }
1428
1429   return aPoint;
1430 }
1431
1432 static void threePointsOfFeature(const FeaturePtr& theMacroFeature,
1433                                  std::shared_ptr<GeomAPI_Pnt2d> thePoints[3])
1434 {
1435   if (theMacroFeature->getKind() == SketchPlugin_MacroCircle::ID()) {
1436     thePoints[0] = toPoint(theMacroFeature,
1437           SketchPlugin_MacroCircle::FIRST_POINT_ID(),
1438           SketchPlugin_MacroCircle::FIRST_POINT_REF_ID());
1439     thePoints[1] = toPoint(theMacroFeature,
1440           SketchPlugin_MacroCircle::SECOND_POINT_ID(),
1441           SketchPlugin_MacroCircle::SECOND_POINT_REF_ID());
1442     thePoints[2] = toPoint(theMacroFeature,
1443           SketchPlugin_MacroCircle::THIRD_POINT_ID(),
1444           SketchPlugin_MacroCircle::THIRD_POINT_REF_ID());
1445   } else if (theMacroFeature->getKind() == SketchPlugin_MacroArc::ID()) {
1446     thePoints[0] = toPoint(theMacroFeature,
1447           SketchPlugin_MacroArc::START_POINT_2_ID(),
1448           SketchPlugin_MacroArc::START_POINT_REF_ID());
1449     thePoints[1] = toPoint(theMacroFeature,
1450           SketchPlugin_MacroArc::END_POINT_2_ID(),
1451           SketchPlugin_MacroArc::END_POINT_REF_ID());
1452     thePoints[2] = toPoint(theMacroFeature,
1453           SketchPlugin_MacroArc::PASSED_POINT_ID(),
1454           SketchPlugin_MacroArc::PASSED_POINT_REF_ID());
1455   }
1456 }
1457
1458 static bool isPointsOnLine(const std::shared_ptr<GeomAPI_Pnt2d>& thePoint1,
1459                            const std::shared_ptr<GeomAPI_Pnt2d>& thePoint2,
1460                            const std::shared_ptr<GeomAPI_Pnt2d>& thePoint3)
1461 {
1462   static const double aTolerance = 1.e-7;
1463   if (thePoint1->distance(thePoint2) < aTolerance ||
1464       thePoint1->distance(thePoint3) < aTolerance)
1465     return true;
1466
1467   std::shared_ptr<GeomAPI_Dir2d> aDirP1P2(new GeomAPI_Dir2d(thePoint2->x() - thePoint1->x(),
1468                                                             thePoint2->y() - thePoint1->y()));
1469   std::shared_ptr<GeomAPI_Dir2d> aDirP1P3(new GeomAPI_Dir2d(thePoint3->x() - thePoint1->x(),
1470                                                             thePoint3->y() - thePoint1->y()));
1471   return fabs(aDirP1P2->cross(aDirP1P3)) < aTolerance;
1472 }
1473
1474 static bool isOnSameSide(const std::shared_ptr<GeomAPI_Lin>& theLine,
1475                          const std::shared_ptr<GeomAPI_Pnt>& thePoint1,
1476                          const std::shared_ptr<GeomAPI_Pnt>& thePoint2)
1477 {
1478   static const double aTolerance = 1.e-7;
1479   std::shared_ptr<GeomAPI_Dir> aLineDir = theLine->direction();
1480   std::shared_ptr<GeomAPI_XYZ> aLineLoc = theLine->location()->xyz();
1481
1482   std::shared_ptr<GeomAPI_XYZ> aVec1 = thePoint1->xyz()->decreased(aLineLoc);
1483   // the first point is on the line
1484   if (aVec1->squareModulus() < aTolerance * aTolerance)
1485     return false;
1486   std::shared_ptr<GeomAPI_Dir> aDirP1L(new GeomAPI_Dir(aVec1));
1487   std::shared_ptr<GeomAPI_XYZ> aVec2 = thePoint2->xyz()->decreased(aLineLoc);
1488   // the second point is on the line
1489   if (aVec2->squareModulus() < aTolerance * aTolerance)
1490     return false;
1491   std::shared_ptr<GeomAPI_Dir> aDirP2L(new GeomAPI_Dir(aVec2));
1492
1493   return aLineDir->cross(aDirP1L)->dot(aLineDir->cross(aDirP2L)) > -aTolerance;
1494 }
1495
1496 static bool isOnSameSide(const std::shared_ptr<GeomAPI_Circ>& theCircle,
1497                          const std::shared_ptr<GeomAPI_Pnt>&  thePoint1,
1498                          const std::shared_ptr<GeomAPI_Pnt>&  thePoint2)
1499 {
1500   static const double aTolerance = 1.e-7;
1501   std::shared_ptr<GeomAPI_Pnt> aCenter = theCircle->center();
1502   double aDistP1C = thePoint1->distance(aCenter);
1503   double aDistP2C = thePoint2->distance(aCenter);
1504   return (aDistP1C - theCircle->radius()) * (aDistP2C - theCircle->radius()) > -aTolerance;
1505 }
1506
1507 bool SketchPlugin_ThirdPointValidator::arePointsNotOnLine(
1508     const FeaturePtr& theMacroFeature,
1509     Events_InfoMessage& theError) const
1510 {
1511   static const std::string aErrorPointsOnLine(
1512       "Selected points are on the same line");
1513
1514   std::shared_ptr<GeomAPI_Pnt2d> aPoints[3];
1515   threePointsOfFeature(theMacroFeature, aPoints);
1516
1517   if (isPointsOnLine(aPoints[0], aPoints[1], aPoints[2])) {
1518     theError = aErrorPointsOnLine;
1519     return false;
1520   }
1521   return true;
1522 }
1523
1524 bool SketchPlugin_ThirdPointValidator::arePointsNotSeparated(
1525     const FeaturePtr& theMacroFeature,
1526     const std::list<std::string>& theArguments,
1527     Events_InfoMessage& theError) const
1528 {
1529   static const std::string aErrorPointsApart(
1530       "Selected entity is lying between first two points");
1531
1532   AttributeRefAttrPtr aThirdPointRef = theMacroFeature->refattr(theArguments.front());
1533   FeaturePtr aRefByThird;
1534   if (aThirdPointRef->isObject())
1535     aRefByThird = ModelAPI_Feature::feature(aThirdPointRef->object());
1536   if (!aRefByThird)
1537     return true;
1538
1539   std::shared_ptr<GeomAPI_Pnt2d> aPoints[3];
1540   threePointsOfFeature(theMacroFeature, aPoints);
1541
1542   std::shared_ptr<GeomAPI_Edge> aThirdShape =
1543       std::dynamic_pointer_cast<GeomAPI_Edge>(aRefByThird->lastResult()->shape());
1544   if (!aThirdShape)
1545     return true;
1546
1547   SketchPlugin_Sketch* aSketch =
1548       std::dynamic_pointer_cast<SketchPlugin_Feature>(theMacroFeature)->sketch();
1549   std::shared_ptr<GeomAPI_Pnt> aFirstPnt3D = aSketch->to3D(aPoints[0]->x(), aPoints[0]->y());
1550   std::shared_ptr<GeomAPI_Pnt> aSecondPnt3D = aSketch->to3D(aPoints[1]->x(), aPoints[1]->y());
1551
1552   bool isOk = true;
1553   if (aThirdShape->isLine())
1554     isOk = isOnSameSide(aThirdShape->line(), aFirstPnt3D, aSecondPnt3D);
1555   else if (aThirdShape->isCircle() || aThirdShape->isArc())
1556     isOk = isOnSameSide(aThirdShape->circle(), aFirstPnt3D, aSecondPnt3D);
1557
1558   if (!isOk)
1559     theError = aErrorPointsApart;
1560   return isOk;
1561 }
1562
1563 bool SketchPlugin_ArcEndPointValidator::isValid(
1564     const AttributePtr& theAttribute,
1565     const std::list<std::string>& theArguments,
1566     Events_InfoMessage& theError) const
1567 {
1568   FeaturePtr aFeature = ModelAPI_Feature::feature(theAttribute->owner());
1569   AttributeRefAttrPtr anEndPointRef = aFeature->refattr(theArguments.front());
1570
1571   if(!anEndPointRef.get()) {
1572     return true;
1573   }
1574
1575   ObjectPtr anObject = anEndPointRef->object();
1576   AttributePtr anAttr = anEndPointRef->attr();
1577   if(!anObject.get() && !anAttr.get()) {
1578     return true;
1579   }
1580
1581   if(anEndPointRef->attr().get()) {
1582     return false;
1583   }
1584
1585   ResultPtr aResult = std::dynamic_pointer_cast<ModelAPI_Result>(anObject);
1586   if(aResult.get()) {
1587     GeomShapePtr aShape = aResult->shape();
1588     if(aShape.get() && aShape->isVertex()) {
1589       return false;
1590     }
1591   }
1592
1593   aFeature = ModelAPI_Feature::feature(anObject);
1594   if(aFeature.get()) {
1595     if(aFeature->getKind() == SketchPlugin_Point::ID()) {
1596       return false;
1597     }
1598   }
1599
1600   return true;
1601 }
1602
1603 static GeomShapePtr toInfiniteEdge(const GeomShapePtr theShape)
1604 {
1605   if(!theShape.get()) {
1606     return theShape;
1607   }
1608
1609   if(!theShape->isEdge()) {
1610     return theShape;
1611   }
1612
1613   std::shared_ptr<GeomAPI_Edge> anEdge(new GeomAPI_Edge(theShape));
1614
1615   if(!anEdge.get()) {
1616     return theShape;
1617   }
1618
1619   if(anEdge->isLine()) {
1620     std::shared_ptr<GeomAPI_Lin> aLine = anEdge->line();
1621     GeomShapePtr aShape = GeomAlgoAPI_EdgeBuilder::line(aLine);
1622     return aShape;
1623   }
1624
1625   if(anEdge->isCircle() || anEdge->isArc()) {
1626     std::shared_ptr<GeomAPI_Circ> aCircle = anEdge->circle();
1627     GeomShapePtr aShape = GeomAlgoAPI_EdgeBuilder::lineCircle(aCircle);
1628     return aShape;
1629   }
1630
1631   return theShape;
1632 }
1633
1634 bool SketchPlugin_ArcEndPointIntersectionValidator::isValid(
1635     const AttributePtr& theAttribute,
1636     const std::list<std::string>& theArguments,
1637     Events_InfoMessage& theError) const
1638 {
1639   std::shared_ptr<SketchPlugin_MacroArc> anArcFeature =
1640       std::dynamic_pointer_cast<SketchPlugin_MacroArc>(theAttribute->owner());
1641   AttributeRefAttrPtr anEndPointRef = anArcFeature->refattr(theArguments.front());
1642
1643   if(!anEndPointRef.get()) {
1644     return true;
1645   }
1646
1647   GeomShapePtr anArcShape = toInfiniteEdge(anArcFeature->getArcShape(false));
1648
1649   if(!anArcShape.get() || anArcShape->isNull()) {
1650     return true;
1651   }
1652
1653   ObjectPtr anObject = anEndPointRef->object();
1654   AttributePtr anAttr = anEndPointRef->attr();
1655   if(!anObject.get() && !anAttr.get()) {
1656     return true;
1657   }
1658
1659   ResultPtr aResult = std::dynamic_pointer_cast<ModelAPI_Result>(anObject);
1660   if(aResult.get()) {
1661     GeomShapePtr aShape = aResult->shape();
1662     if (!aShape->isEdge())
1663       return true;
1664     aShape = toInfiniteEdge(aShape);
1665     if(aShape.get() && !aShape->isNull()) {
1666       if(anArcShape->isIntersect(aShape)) {
1667         return true;
1668       }
1669     }
1670   }
1671
1672   FeaturePtr aSelectedFeature = ModelAPI_Feature::feature(anObject);
1673   if(aSelectedFeature.get()) {
1674     std::list<ResultPtr> aResults = aSelectedFeature->results();
1675     for(std::list<ResultPtr>::const_iterator anIt = aResults.cbegin();
1676         anIt != aResults.cend();
1677         ++anIt)
1678     {
1679       GeomShapePtr aShape = (*anIt)->shape();
1680       if (!aShape->isEdge())
1681         return true;
1682       aShape = toInfiniteEdge(aShape);
1683       if(aShape.get() && !aShape->isNull()) {
1684         if(anArcShape->isIntersect(aShape)) {
1685           return true;
1686         }
1687       }
1688     }
1689   }
1690
1691   return false;
1692 }
1693
1694 bool SketchPlugin_HasNoConstraint::isValid(const AttributePtr& theAttribute,
1695                                            const std::list<std::string>& theArguments,
1696                                            Events_InfoMessage& theError) const
1697 {
1698   std::set<std::string> aFeatureKinds;
1699   for (std::list<std::string>::const_iterator anArgIt = theArguments.begin();
1700        anArgIt != theArguments.end(); anArgIt++) {
1701     aFeatureKinds.insert(*anArgIt);
1702   }
1703
1704   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
1705     theError = "The attribute with the %1 type is not processed";
1706     theError.arg(theAttribute->attributeType());
1707     return false;
1708   }
1709
1710   AttributeRefAttrPtr aRefAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
1711                                                                       (theAttribute);
1712   bool isObject = aRefAttr->isObject();
1713   if (!isObject) {
1714     theError = "It uses an empty object";
1715     return false;
1716   }
1717   ObjectPtr anObject = aRefAttr->object();
1718   FeaturePtr aFeature = ModelAPI_Feature::feature(anObject);
1719   if (!aFeature.get()) {
1720     theError = "The feature of the checked attribute is empty";
1721     return false;
1722   }
1723
1724   FeaturePtr aCurrentFeature = ModelAPI_Feature::feature(aRefAttr->owner());
1725
1726   std::set<AttributePtr> aRefsList = anObject->data()->refsToMe();
1727   std::set<AttributePtr>::const_iterator anIt = aRefsList.begin();
1728   for (; anIt != aRefsList.end(); anIt++) {
1729     FeaturePtr aRefFeature = ModelAPI_Feature::feature((*anIt)->owner());
1730     if (aRefFeature.get() && aCurrentFeature != aRefFeature &&
1731         aFeatureKinds.find(aRefFeature->getKind()) != aFeatureKinds.end())
1732       return false; // constraint is found, that means that the check is not valid
1733   }
1734   return true;
1735 }
1736
1737 bool SketchPlugin_ReplicationReferenceValidator::isValid(
1738     const AttributePtr& theAttribute,
1739     const std::list<std::string>& theArguments,
1740     Events_InfoMessage& theError) const
1741 {
1742   AttributeRefAttrPtr aRefAttr =
1743       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
1744   if (!aRefAttr)
1745   {
1746     theError = "Incorrect attribute";
1747     return false;
1748   }
1749
1750   ObjectPtr anOwner;
1751   if (aRefAttr->isObject())
1752     anOwner = aRefAttr->object();
1753   else
1754   {
1755     AttributePtr anAttr = aRefAttr->attr();
1756     anOwner = anAttr->owner();
1757   }
1758   FeaturePtr anAttrOwnerFeature = ModelAPI_Feature::feature(anOwner);
1759   if (!anAttrOwnerFeature)
1760     return true;
1761   AttributeBooleanPtr aCopyAttr = anAttrOwnerFeature->boolean(SketchPlugin_SketchEntity::COPY_ID());
1762   if (!aCopyAttr || !aCopyAttr->value())
1763     return true; // feature is not a copy, thus valid
1764
1765   // check the copy feature is already referred by the "Multi" feature
1766   FeaturePtr aMultiFeature = ModelAPI_Feature::feature(theAttribute->owner());
1767   AttributeRefListPtr aRefList = aMultiFeature->reflist(theArguments.front());
1768   for (int i = 0; i < aRefList->size(); ++i)
1769   {
1770     FeaturePtr aRefOwner = ModelAPI_Feature::feature(aRefList->object(i));
1771     if (aRefOwner == anAttrOwnerFeature)
1772     {
1773       theError = "Attribute refers to the object generated by this feature";
1774       return false;
1775     }
1776   }
1777
1778   return true;
1779 }
1780
1781 bool SketchPlugin_SketchFeatureValidator::isValid(const AttributePtr& theAttribute,
1782                                                   const std::list<std::string>& theArguments,
1783                                                   Events_InfoMessage& theError) const
1784 {
1785   if (theAttribute->attributeType() != ModelAPI_AttributeRefAttr::typeId()) {
1786     theError = "The attribute with the %1 type is not processed";
1787     theError.arg(theAttribute->attributeType());
1788     return false;
1789   }
1790
1791   // check the attribute refers to a sketch feature
1792   AttributeRefAttrPtr aRefAttr =
1793       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theAttribute);
1794   bool isSketchFeature = aRefAttr->isObject();
1795   if (isSketchFeature) {
1796     FeaturePtr aFeature = ModelAPI_Feature::feature(aRefAttr->object());
1797     isSketchFeature = aFeature.get() != NULL;
1798     if (isSketchFeature) {
1799       std::shared_ptr<SketchPlugin_Feature> aSketchFeature =
1800           std::dynamic_pointer_cast<SketchPlugin_Feature>(aFeature);
1801       isSketchFeature = aSketchFeature.get() != NULL;
1802     }
1803   }
1804
1805   if (isSketchFeature)
1806     return true;
1807
1808   theError = "The object selected is not a sketch feature";
1809   return false;
1810 }
1811
1812 bool SketchPlugin_MultiRotationAngleValidator::isValid(const AttributePtr& theAttribute,
1813                                                        const std::list<std::string>& theArguments,
1814                                                        Events_InfoMessage& theError) const
1815 {
1816   if (theAttribute->attributeType() != ModelAPI_AttributeDouble::typeId()) {
1817     theError = "The attribute with the %1 type is not processed";
1818     theError.arg(theAttribute->attributeType());
1819     return false;
1820   }
1821
1822   AttributeDoublePtr anAngleAttr =
1823     std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(theAttribute);
1824
1825   FeaturePtr aMultiRotation = ModelAPI_Feature::feature(theAttribute->owner());
1826   AttributeStringPtr anAngleType =
1827       aMultiRotation->string(SketchPlugin_MultiRotation::ANGLE_TYPE());
1828   AttributeIntegerPtr aNbCopies =
1829       aMultiRotation->integer(SketchPlugin_MultiRotation::NUMBER_OF_OBJECTS_ID());
1830
1831   if (anAngleType->value() != "FullAngle")
1832   {
1833     double aFullAngleValue = anAngleAttr->value() * (aNbCopies->value() - 1);
1834     if (aFullAngleValue < -1.e-7 || aFullAngleValue > 359.9999999)
1835     {
1836       theError = "Rotation single angle should produce full angle less than 360 degree";
1837       return false;
1838     }
1839   }
1840   else
1841   {
1842     double aFullAngleValue = anAngleAttr->value();
1843     if (aFullAngleValue < -1.e-7 || aFullAngleValue > 360.0000001)
1844     {
1845       theError = "Rotation full angle should be in range [0, 360]";
1846       return false;
1847     }
1848   }
1849
1850   return true;
1851 }
1852
1853 bool SketchPlugin_BSplineValidator::isValid(const AttributePtr& theAttribute,
1854                                             const std::list<std::string>& theArguments,
1855                                             Events_InfoMessage& theError) const
1856 {
1857   AttributePoint2DArrayPtr aPolesArray =
1858       std::dynamic_pointer_cast<GeomDataAPI_Point2DArray>(theAttribute);
1859   if (!aPolesArray)
1860     return false;
1861
1862   if (aPolesArray->size() < 2) {
1863     theError = "Number of B-spline poles should be 2 or more";
1864     return false;
1865   }
1866
1867   return true;
1868 }