src/ModuleBase/ModuleBase_WidgetSelectionFilter.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 "ModuleBase_WidgetSelectionFilter.h"
  21 #include "ModuleBase_Tools.h"
  22 #include "ModuleBase_IWorkshop.h"
  23 #include "ModuleBase_ISelectionActivate.h"
  24 #include "ModuleBase_IModule.h"
  25 #include "ModuleBase_IViewer.h"
  26 #include "ModuleBase_IPropertyPanel.h"
  27 #include "ModuleBase_PageWidget.h"
  28 #include "ModuleBase_WidgetMultiSelector.h"
  29 #include "ModuleBase_ResultPrs.h"
  30 #include "ModuleBase_WidgetFactory.h"
  31
  32 #include <ModelAPI_Session.h>
  33 #include <ModelAPI_AttributeSelectionList.h>
  34 #include <ModelAPI_Events.h>
  35 #include <GeomAPI_ShapeExplorer.h>
  36
  37 #include <Events_Loop.h>
  38 #include <Config_ValidatorReader.h>
  39
  40 #include <AIS_InteractiveContext.hxx>
  41 #include <StdSelect_BRepOwner.hxx>
  42 #include <TopoDS_Compound.hxx>
  43 #include <BRep_Builder.hxx>
  44
  45 #include <QLayout>
  46 #include <QPushButton>
  47 #include <QLabel>
  48 #include <QComboBox>
  49 #include <QGroupBox>
  50 #include <QDialog>
  51 #include <QToolButton>
  52 #include <QCheckBox>
  53
  54 static FeaturePtr SelectorFeature;
  55 static std::string AttributeId;
  56
  57
  58 GeomAPI_Shape::ShapeType selectionType(const QString& theType)
  59 {
  60   QString aType = theType.toUpper();
  61   if ((aType == "VERTEX") || (aType == "VERTICES"))
  62     return GeomAPI_Shape::VERTEX;
  63   else if ((aType == "EDGE") || (aType == "EDGES"))
  64     return GeomAPI_Shape::EDGE;
  65   else if ((aType == "WIRE") || (aType == "WIRES"))
  66     return GeomAPI_Shape::WIRE;
  67   else if ((aType == "FACE") || (aType == "FACES"))
  68     return GeomAPI_Shape::FACE;
  69   else if ((aType == "SHELL") || (aType == "SHELLS"))
  70     return GeomAPI_Shape::SHELL;
  71   else if ((aType == "SOLID") || (aType == "SOLIDS"))
  72     return GeomAPI_Shape::SOLID;
  73   else if ((aType == "COMPSOLID") || (aType == "COMPSOLIDS"))
  74     return GeomAPI_Shape::COMPSOLID;
  75   else if ((aType == "COMPOUND") || (aType == "COMPOUNDS"))
  76     return GeomAPI_Shape::COMPOUND;
  77   else
  78     return GeomAPI_Shape::SHAPE;
  79 }
  80
  81
  82 ModuleBase_FilterStarter::ModuleBase_FilterStarter(const std::string& theFeature,
  83   QWidget* theParent, ModuleBase_IWorkshop* theWorkshop)
  84   : QWidget(theParent),
  85   myFeatureName(theFeature),
  86   myWorkshop(theWorkshop)
  87 {
  88   QHBoxLayout* aMainLayout = new QHBoxLayout(this);
  89   ModuleBase_Tools::adjustMargins(aMainLayout);
  90
  91   aMainLayout->addStretch(1);
  92   QPushButton* aLaunchBtn = new QPushButton(tr("Selection by filters"), this);
  93   connect(aLaunchBtn, SIGNAL(clicked()), SLOT(onFiltersLaunch()));
  94   aMainLayout->addWidget(aLaunchBtn);
  95
  96   myFilterLbl = new QLabel(this);
  97   myFilterLbl->setPixmap(QPixmap(":pictures/filter.png"));
  98   aMainLayout->addWidget(myFilterLbl);
  99
 100   myModifyLbl = new QLabel(this);
 101   myModifyLbl->setPixmap(QPixmap(":pictures/plus_minus.png"));
 102   aMainLayout->addWidget(myModifyLbl);
 103   aMainLayout->addStretch(1);
 104
 105   myFilterLbl->hide();
 106   myModifyLbl->hide();
 107 }
 108
 109 void ModuleBase_FilterStarter::onFiltersLaunch()
 110 {
 111   ModuleBase_Operation* aParentOp = myWorkshop->currentOperation();
 112   ModuleBase_OperationFeature* aFeatureOp = dynamic_cast<ModuleBase_OperationFeature*>(aParentOp);
 113   if (aFeatureOp)
 114     // Open transaction on filters operation finish
 115     aFeatureOp->openTransactionOnResume();
 116
 117   QWidget* aParent = parentWidget();
 118   ModuleBase_WidgetMultiSelector* aSelector =
 119     dynamic_cast<ModuleBase_WidgetMultiSelector*>(aParent);
 120   while (!aSelector) {
 121     aParent = aParent->parentWidget();
 122     aSelector = dynamic_cast<ModuleBase_WidgetMultiSelector*>(aParent);
 123   }
 124   if (!aSelector)
 125     return;
 126   SelectorFeature = aSelector->feature();
 127   AttributeId = aSelector->attributeID();
 128
 129   // Launch Filters operation
 130   ModuleBase_OperationFeature* aFOperation = dynamic_cast<ModuleBase_OperationFeature*>
 131     (myWorkshop->module()->createOperation(myFeatureName));
 132   myWorkshop->processLaunchOperation(aFOperation);
 133 }
 134
 135 //*****************************************************************************
 136 //*****************************************************************************
 137 //*****************************************************************************
 138 ModuleBase_FilterItem::ModuleBase_FilterItem(
 139   const std::string& theFilter, ModuleBase_WidgetSelectionFilter* theParent)
 140   : QWidget(theParent->filtersWidget()), myFilterID(theFilter),
 141     mySelection(std::dynamic_pointer_cast<ModelAPI_FiltersFeature>(theParent->feature()))
 142 {
 143   std::string aXmlString = ModelAPI_Session::get()->filters()->filter(theFilter)->xmlRepresentation();
 144   if (aXmlString.length() == 0)
 145     addItemRow(this);
 146   else {
 147     ModuleBase_WidgetFactory aFactory(aXmlString, theParent->workshop());
 148     Config_ValidatorReader aValidatorReader(aXmlString, true);
 149     aValidatorReader.setFeatureId(mySelection->getKind());
 150     aValidatorReader.readAll();
 151
 152     QVBoxLayout* aLayout = new QVBoxLayout(this);
 153     ModuleBase_Tools::zeroMargins(aLayout);
 154
 155     QWidget* aItemRow = new QWidget(this);
 156     addItemRow(aItemRow);
 157     aLayout->addWidget(aItemRow);
 158
 159     ModuleBase_PageWidget* aParamsWgt = new ModuleBase_PageWidget(this);
 160     aParamsWgt->setFrameStyle(QFrame::Box | QFrame::Raised);
 161     aFactory.createWidget(aParamsWgt);
 162     ModuleBase_Tools::zeroMargins(aParamsWgt->layout());
 163     myWidgets = aFactory.getModelWidgets();
 164     foreach(ModuleBase_ModelWidget* aWidget, myWidgets) {
 165       aWidget->setFeature(theParent->feature());
 166       connect(aWidget, SIGNAL(focusInWidget(ModuleBase_ModelWidget*)),
 167         theParent, SIGNAL(focusInWidget(ModuleBase_ModelWidget*)));
 168       connect(aWidget, SIGNAL(focusOutWidget(ModuleBase_ModelWidget*)),
 169         theParent, SIGNAL(focusOutWidget(ModuleBase_ModelWidget*)));
 170     }
 171     aLayout->addWidget(aParamsWgt);
 172   }
 173 }
 174
 175 void ModuleBase_FilterItem::addItemRow(QWidget* theParent)
 176 {
 177   QHBoxLayout* aLayout = new QHBoxLayout(theParent);
 178   ModuleBase_Tools::zeroMargins(aLayout);
 179
 180   // Reverse filter button
 181   myRevBtn = new QToolButton(theParent);
 182   myRevBtn->setCheckable(true);
 183   myRevBtn->setChecked(false);
 184   myRevBtn->setAutoRaise(true);
 185   myRevBtn->setIcon(QIcon(":pictures/add.png"));
 186   myRevBtn->setToolTip(tr("Reverse the filter"));
 187   connect(myRevBtn, SIGNAL(toggled(bool)), SLOT(onReverse(bool)));
 188   aLayout->addWidget(myRevBtn);
 189
 190   const std::string& aFilterName = ModelAPI_Session::get()->filters()->filter(myFilterID)->name();
 191   aLayout->addWidget(new QLabel(aFilterName.c_str(), theParent), 1);
 192
 193   QToolButton* aDelBtn = new QToolButton(theParent);
 194   aDelBtn->setIcon(QIcon(":pictures/delete.png"));
 195   aDelBtn->setAutoRaise(true);
 196   aDelBtn->setToolTip(tr("Delete the filter"));
 197   connect(aDelBtn, SIGNAL(clicked(bool)), SLOT(onDelete()));
 198   aLayout->addWidget(aDelBtn);
 199 }
 200
 201 void ModuleBase_FilterItem::onReverse(bool theCheck)
 202 {
 203   mySelection->setReversed(myFilterID, theCheck);
 204   if (theCheck)
 205     myRevBtn->setIcon(QIcon(":pictures/reverce.png"));
 206   else
 207     myRevBtn->setIcon(QIcon(":pictures/add.png"));
 208   emit reversedItem(this);
 209 }
 210
 211 void ModuleBase_FilterItem::onDelete()
 212 {
 213   emit deleteItem(this);
 214 }
 215
 216 QList<QWidget*> ModuleBase_FilterItem::getControls() const
 217 {
 218   QList<QWidget*> aWidgetsList;
 219   foreach(ModuleBase_ModelWidget* aWgt, myWidgets) {
 220     QList<QWidget*> aSubList = aWgt->getControls();
 221     foreach(QWidget* aSub, aSubList) {
 222       aWidgetsList.append(aSub);
 223     }
 224   }
 225   return aWidgetsList;
 226 }
 227
 228
 229 //*****************************************************************************
 230 //*****************************************************************************
 231 //*****************************************************************************
 232 ModuleBase_WidgetSelectionFilter::ModuleBase_WidgetSelectionFilter(QWidget* theParent,
 233   ModuleBase_IWorkshop* theWorkshop, const Config_WidgetAPI* theData)
 234   : ModuleBase_ModelWidget(theParent, theData),
 235   myWorkshop(theWorkshop),
 236   mySelectorFeature(SelectorFeature),
 237   mySelectorAttribute(AttributeId)
 238 {
 239   // Clear Old selection
 240   AttributePtr aAttr = SelectorFeature->attribute(AttributeId);
 241   AttributeSelectionListPtr aSelListAttr =
 242     std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(aAttr);
 243   mySelectionType = selectionType(aSelListAttr->selectionType().c_str());
 244   aSelListAttr->clear();
 245
 246   // Define widgets
 247   QVBoxLayout* aMainLayout = new QVBoxLayout(this);
 248   ModuleBase_Tools::adjustMargins(aMainLayout);
 249
 250   QGroupBox* aFiltersGroup = new QGroupBox(tr("Filters"), this);
 251   QVBoxLayout* aGroupLayout = new QVBoxLayout(aFiltersGroup);
 252   aGroupLayout->setContentsMargins(0, 0, 0, 0);
 253   aGroupLayout->setSpacing(0);
 254
 255   myFiltersWgt = new QWidget();
 256   myFiltersLayout = new QVBoxLayout(myFiltersWgt);
 257   myFiltersLayout->setContentsMargins(0, 0, 0, 0);
 258   aGroupLayout->addWidget(myFiltersWgt);
 259
 260   myFiltersCombo = new QComboBox(aFiltersGroup);
 261   myFiltersCombo->addItem(tr("Add new filter..."));
 262   SessionPtr aSession = ModelAPI_Session::get();
 263   std::list<FilterPtr> allFilters =
 264     aSession->filters()->filters((GeomAPI_Shape::ShapeType) mySelectionType);
 265   QStringList aItems;
 266   std::list<FilterPtr>::const_iterator aIt;
 267   for (aIt = allFilters.cbegin(); aIt != allFilters.cend(); aIt++) {
 268     aItems.push_back((*aIt)->name().c_str());
 269     myFilters.push_back(aSession->filters()->id(*aIt));
 270   }
 271   myFiltersCombo->addItems(aItems);
 272   connect(myFiltersCombo, SIGNAL(currentIndexChanged(int)), SLOT(onAddFilter(int)));
 273
 274   aGroupLayout->addWidget(myFiltersCombo);
 275   aMainLayout->addWidget(aFiltersGroup);
 276
 277   // Select Button
 278   QWidget* aBtnWgt = new QWidget(this);
 279   QHBoxLayout* aBtnLayout = new QHBoxLayout(aBtnWgt);
 280   ModuleBase_Tools::adjustMargins(aBtnLayout);
 281
 282   aBtnLayout->addStretch(1);
 283
 284   mySelectBtn = new QPushButton(tr("Select"), aBtnWgt);
 285   connect(mySelectBtn, SIGNAL(clicked()), SLOT(onSelect()));
 286   aBtnLayout->addWidget(mySelectBtn);
 287
 288   aMainLayout->addWidget(aBtnWgt);
 289
 290   // Label widgets
 291   QWidget* aLblWgt = new QWidget(this);
 292   QHBoxLayout* aLblLayout = new QHBoxLayout(aLblWgt);
 293   ModuleBase_Tools::zeroMargins(aLblLayout);
 294
 295   aLblLayout->addWidget(new QLabel(tr("Number of selected objects:"), aLblWgt));
 296
 297   myNbLbl = new QLabel("0", aLblWgt);
 298   aLblLayout->addWidget(myNbLbl);
 299
 300   // Show only button
 301   myShowBtn = new QCheckBox(tr("Show only"), this);
 302   connect(myShowBtn, SIGNAL(toggled(bool)), SLOT(onShowOnly(bool)));
 303   aLblLayout->addWidget(myShowBtn);
 304
 305   aMainLayout->addWidget(aLblWgt);
 306
 307   aMainLayout->addStretch(1);
 308
 309   updateSelectBtn();
 310 }
 311
 312 ModuleBase_WidgetSelectionFilter::~ModuleBase_WidgetSelectionFilter()
 313 {
 314   myValues.clear();
 315   if (!myPreview.IsNull()) {
 316     Handle(AIS_InteractiveContext) aCtx = myWorkshop->viewer()->AISContext();
 317     aCtx->Remove(myPreview, false);
 318     myPreview.Nullify();
 319     if (myShowBtn->isChecked()) {
 320       AIS_ListOfInteractive::const_iterator aIt;
 321       Handle(AIS_Shape) aShapeIO;
 322       for (aIt = myListIO.cbegin(); aIt != myListIO.cend(); aIt++) {
 323         aShapeIO = Handle(AIS_Shape)::DownCast(*aIt);
 324         if (!aShapeIO.IsNull()) {
 325           aCtx->Display(aShapeIO, false);
 326         }
 327       }
 328     }
 329     aCtx->UpdateCurrentViewer();
 330   }
 331   SelectorFeature = FeaturePtr();
 332   AttributeId = "";
 333 }
 334
 335 void ModuleBase_WidgetSelectionFilter::onAddFilter(int theIndex)
 336 {
 337   if (theIndex == 0)
 338     return;
 339
 340   std::list<std::string>::iterator aIt;
 341   int i;
 342   std::string aFilter;
 343   for (aIt = myFilters.begin(), i = 0; aIt != myFilters.cend(); i++, aIt++) {
 344     if (i == (theIndex - 1)) {
 345       aFilter = (*aIt);
 346       myFilters.erase(aIt);
 347       break;
 348     }
 349   }
 350   if (!aFilter.empty()) {
 351     myUseFilters.push_back(aFilter);
 352     ModuleBase_FilterItem* aItem = new ModuleBase_FilterItem(aFilter, this);
 353     connect(aItem, SIGNAL(deleteItem(ModuleBase_FilterItem*)),
 354       SLOT(onDeleteItem(ModuleBase_FilterItem*)));
 355     connect(aItem, SIGNAL(reversedItem(ModuleBase_FilterItem*)),
 356       SLOT(onReverseItem(ModuleBase_FilterItem*)));
 357     myFiltersLayout->addWidget(aItem);
 358
 359     FiltersFeaturePtr aFiltersFeature =
 360       std::dynamic_pointer_cast<ModelAPI_FiltersFeature>(myFeature);
 361     aFiltersFeature->addFilter(aFilter);
 362   }
 363   updateSelectBtn();
 364   clearCurrentSelection(true);
 365   updateNumberSelected();
 366   myFiltersCombo->setCurrentIndex(0);
 367   myFiltersCombo->removeItem(theIndex);
 368
 369   enableFocusProcessing();
 370 }
 371
 372 void ModuleBase_WidgetSelectionFilter::onDeleteItem(ModuleBase_FilterItem* theItem)
 373 {
 374   std::string aFilter = theItem->filter();
 375   QList<ModuleBase_ModelWidget*> aWidgets = theItem->widgets();
 376   foreach(ModuleBase_ModelWidget* aWgt, aWidgets) {
 377     aWgt->deactivate();
 378   }
 379   myFiltersLayout->removeWidget(theItem);
 380   theItem->deleteLater();
 381
 382   myUseFilters.remove(aFilter);
 383   myFilters.push_back(aFilter);
 384   myFiltersCombo->addItem(ModelAPI_Session::get()->filters()->filter(aFilter)->name().c_str());
 385
 386   FiltersFeaturePtr aFiltersFeature =
 387     std::dynamic_pointer_cast<ModelAPI_FiltersFeature>(myFeature);
 388   aFiltersFeature->removeFilter(aFilter);
 389
 390   updateSelectBtn();
 391   clearCurrentSelection(true);
 392   updateNumberSelected();
 393
 394   enableFocusProcessing();
 395   myWorkshop->deactivateCurrentSelector();
 396   myWorkshop->selectionActivate()->updateSelectionModes();
 397   myWorkshop->selectionActivate()->updateSelectionFilters();
 398   redisplayFeature();
 399 }
 400
 401
 402 void ModuleBase_WidgetSelectionFilter::redisplayFeature()
 403 {
 404   static Events_ID aDispEvent = Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 405   ModelAPI_EventCreator::get()->sendUpdated(myFeature, aDispEvent);
 406   Events_Loop::loop()->flush(aDispEvent);
 407 }
 408
 409 void ModuleBase_WidgetSelectionFilter::onReverseItem(ModuleBase_FilterItem* theItem)
 410 {
 411   updateSelectBtn();
 412   clearCurrentSelection(true);
 413   updateNumberSelected();
 414 }
 415
 416 void ModuleBase_WidgetSelectionFilter::onSelect()
 417 {
 418   if (myUseFilters.size() == 0)
 419     return;
 420   Handle(AIS_InteractiveContext) aCtx = myWorkshop->viewer()->AISContext();
 421   if (aCtx.IsNull())
 422     return;
 423
 424   clearCurrentSelection();
 425
 426   BRep_Builder aBuilder;
 427   TopoDS_Compound aComp;
 428   aBuilder.MakeCompound(aComp);
 429
 430   if (!myShowBtn->isChecked()) {
 431     myListIO.Clear();
 432     aCtx->DisplayedObjects(AIS_KOI_Shape, -1, myListIO);
 433     if (!myPreview.IsNull())
 434       myListIO.Remove(myPreview);
 435   }
 436   AIS_ListOfInteractive::const_iterator aIt;
 437   Handle(ModuleBase_ResultPrs) aShapeIO;
 438   for (aIt = myListIO.cbegin(); aIt != myListIO.cend(); aIt++) {
 439     aShapeIO = Handle(ModuleBase_ResultPrs)::DownCast(*aIt);
 440     if (!aShapeIO.IsNull()) {
 441       GeomShapePtr aShape(new GeomAPI_Shape);
 442       aShape->setImpl(new TopoDS_Shape(aShapeIO->Shape()));
 443       std::list<GeomShapePtr> aSubShapes =
 444         aShape->subShapes((GeomAPI_Shape::ShapeType)mySelectionType);
 445       std::list<GeomShapePtr>::const_iterator aShapesIt;
 446       for (aShapesIt = aSubShapes.cbegin(); aShapesIt != aSubShapes.cend(); aShapesIt++) {
 447         GeomShapePtr aShape = (*aShapesIt);
 448         SessionPtr aSession = ModelAPI_Session::get();
 449         bool isValid = aSession->filters()->isValid(myFeature, aShape);
 450         if (isValid) {
 451           TopoDS_Shape aTShape = aShape->impl<TopoDS_Shape>();
 452           Handle(StdSelect_BRepOwner) aOwner = new StdSelect_BRepOwner(aTShape, aShapeIO, true);
 453           aBuilder.Add(aComp, aTShape);
 454
 455           ModuleBase_ViewerPrsPtr aValue(new ModuleBase_ViewerPrs(aShapeIO->getResult(), aShape, aOwner));
 456           myValues.append(aValue);
 457         }
 458       }
 459     }
 460   }
 461   if (myValues.size() > 0)
 462     updatePreview(aComp);
 463   updateNumberSelected();
 464 }
 465
 466 void ModuleBase_WidgetSelectionFilter::updatePreview(const TopoDS_Shape& theShape)
 467 {
 468   Handle(AIS_InteractiveContext) aCtx = myWorkshop->viewer()->AISContext();
 469   if (aCtx.IsNull())
 470     return;
 471
 472   if (myPreview.IsNull()) {
 473     myPreview = new AIS_Shape(theShape);
 474     //myPreview->SetDisplayMode(myShowBtn->isChecked()? AIS_Shaded : AIS_WireFrame);
 475     myPreview->SetDisplayMode(AIS_Shaded);
 476     myPreview->SetColor(Quantity_NOC_BLUE1);
 477     myPreview->SetTransparency();
 478     aCtx->Display(myPreview, true);
 479     aCtx->Deactivate(myPreview);
 480   }
 481   else {
 482     myPreview->Set(theShape);
 483     aCtx->Redisplay(myPreview, true);
 484   }
 485 }
 486
 487
 488 void ModuleBase_WidgetSelectionFilter::onShowOnly(bool theShow)
 489 {
 490   if (myPreview.IsNull())
 491     return;
 492   Handle(AIS_InteractiveContext) aCtx = myWorkshop->viewer()->AISContext();
 493
 494   if (theShow) {
 495     myListIO.Clear();
 496     aCtx->DisplayedObjects(AIS_KOI_Shape, -1, myListIO);
 497     myListIO.Remove(myPreview);
 498   }
 499   AIS_ListOfInteractive::const_iterator aIt;
 500   Handle(AIS_Shape) aShapeIO;
 501   for (aIt = myListIO.cbegin(); aIt != myListIO.cend(); aIt++) {
 502     aShapeIO = Handle(AIS_Shape)::DownCast(*aIt);
 503     if (!aShapeIO.IsNull()) {
 504       if (theShow)
 505         aCtx->Erase(aShapeIO, false);
 506       else
 507         aCtx->Display(aShapeIO, false);
 508     }
 509   }
 510   aCtx->UpdateCurrentViewer();
 511 }
 512
 513 void ModuleBase_WidgetSelectionFilter::updateSelectBtn()
 514 {
 515   mySelectBtn->setEnabled(myUseFilters.size() > 0);
 516 }
 517
 518 void ModuleBase_WidgetSelectionFilter::updateNumberSelected()
 519 {
 520   myNbLbl->setText(QString::number(myValues.size()));
 521 }
 522 QList<QWidget*> ModuleBase_WidgetSelectionFilter::getControls() const
 523 {
 524   QList<QWidget*> aWidgets;
 525   QList<ModuleBase_FilterItem*> aItems = myFiltersWgt->findChildren<ModuleBase_FilterItem*>();
 526   foreach(ModuleBase_FilterItem* aItem, aItems) {
 527     QList<QWidget*> aSubList = aItem->getControls();
 528     foreach(QWidget* aWgt, aSubList) {
 529       aWidgets.append(aWgt);
 530     }
 531   }
 532   return aWidgets;
 533 }
 534
 535 void ModuleBase_WidgetSelectionFilter::clearCurrentSelection(bool toUpdate)
 536 {
 537   myValues.clear();
 538   if (!myPreview.IsNull()) {
 539     Handle(AIS_InteractiveContext) aCtx = myWorkshop->viewer()->AISContext();
 540     aCtx->Remove(myPreview, toUpdate);
 541     myPreview.Nullify();
 542   }
 543 }
 544
 545 void ModuleBase_WidgetSelectionFilter::onFeatureAccepted()
 546 {
 547   AttributePtr aAttr = mySelectorFeature->attribute(mySelectorAttribute);
 548   AttributeSelectionListPtr aSelListAttr =
 549     std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(aAttr);
 550   aSelListAttr->clear();
 551   foreach(ModuleBase_ViewerPrsPtr aPrs, myValues) {
 552     aSelListAttr->append(aPrs->object(), aPrs->shape());
 553   }
 554 }
 555
 556 bool ModuleBase_WidgetSelectionFilter::storeValueCustom()
 557 {
 558   return true;
 559 }
 560
 561 bool ModuleBase_WidgetSelectionFilter::restoreValueCustom()
 562 {
 563   ModuleBase_ModelWidget* aActive = myWorkshop->propertyPanel()->activeWidget();
 564   if (aActive)
 565     return aActive->restoreValue();
 566   return true;
 567 }