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