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 <ModelAPI_ResultBody.h>
  36 #include <GeomAPI_ShapeExplorer.h>
  37
  38 #include <Events_Loop.h>
  39 #include <Config_ValidatorReader.h>
  40
  41 #include <AIS_InteractiveContext.hxx>
  42 #include <StdSelect_BRepOwner.hxx>
  43 #include <TopoDS_Compound.hxx>
  44 #include <BRep_Builder.hxx>
  45
  46 #include <QLayout>
  47 #include <QPushButton>
  48 #include <QLabel>
  49 #include <QComboBox>
  50 #include <QGroupBox>
  51 #include <QDialog>
  52 #include <QToolButton>
  53 #include <QCheckBox>
  54
  55 static FeaturePtr SelectorFeature;
  56 static std::string AttributeId;
  57
  58
  59 GeomAPI_Shape::ShapeType selectionType(const QString& theType)
  60 {
  61   QString aType = theType.toUpper();
  62   if ((aType == "VERTEX") || (aType == "VERTICES"))
  63     return GeomAPI_Shape::VERTEX;
  64   else if ((aType == "EDGE") || (aType == "EDGES"))
  65     return GeomAPI_Shape::EDGE;
  66   else if ((aType == "WIRE") || (aType == "WIRES"))
  67     return GeomAPI_Shape::WIRE;
  68   else if ((aType == "FACE") || (aType == "FACES"))
  69     return GeomAPI_Shape::FACE;
  70   else if ((aType == "SHELL") || (aType == "SHELLS"))
  71     return GeomAPI_Shape::SHELL;
  72   else if ((aType == "SOLID") || (aType == "SOLIDS"))
  73     return GeomAPI_Shape::SOLID;
  74   else if ((aType == "COMPSOLID") || (aType == "COMPSOLIDS"))
  75     return GeomAPI_Shape::COMPSOLID;
  76   else if ((aType == "COMPOUND") || (aType == "COMPOUNDS"))
  77     return GeomAPI_Shape::COMPOUND;
  78   else
  79     return GeomAPI_Shape::SHAPE;
  80 }
  81
  82
  83 ModuleBase_FilterStarter::ModuleBase_FilterStarter(const std::string& theFeature,
  84   QWidget* theParent, ModuleBase_IWorkshop* theWorkshop)
  85   : QWidget(theParent),
  86   myFeatureName(theFeature),
  87   myWorkshop(theWorkshop)
  88 {
  89   QHBoxLayout* aMainLayout = new QHBoxLayout(this);
  90   ModuleBase_Tools::adjustMargins(aMainLayout);
  91
  92   aMainLayout->addStretch(1);
  93   QPushButton* aLaunchBtn = new QPushButton(tr("Selection by filters"), this);
  94   connect(aLaunchBtn, SIGNAL(clicked()), SLOT(onFiltersLaunch()));
  95   aMainLayout->addWidget(aLaunchBtn);
  96 }
  97
  98 void ModuleBase_FilterStarter::onFiltersLaunch()
  99 {
 100   ModuleBase_Operation* aParentOp = myWorkshop->currentOperation();
 101   ModuleBase_OperationFeature* aFeatureOp = dynamic_cast<ModuleBase_OperationFeature*>(aParentOp);
 102   if (aFeatureOp)
 103     // Open transaction on filters operation finish
 104     aFeatureOp->openTransactionOnResume();
 105
 106   QWidget* aParent = parentWidget();
 107   ModuleBase_WidgetMultiSelector* aSelector =
 108     dynamic_cast<ModuleBase_WidgetMultiSelector*>(aParent);
 109   while (!aSelector) {
 110     aParent = aParent->parentWidget();
 111     aSelector = dynamic_cast<ModuleBase_WidgetMultiSelector*>(aParent);
 112   }
 113   if (!aSelector)
 114     return;
 115   SelectorFeature = aSelector->feature();
 116   AttributeId = aSelector->attributeID();
 117
 118   // Launch Filters operation
 119   ModuleBase_OperationFeature* aFOperation = dynamic_cast<ModuleBase_OperationFeature*>
 120     (myWorkshop->module()->createOperation(myFeatureName));
 121
 122   AttributeSelectionListPtr aAttrList = SelectorFeature->selectionList(AttributeId);
 123   FiltersFeaturePtr aFilters = aAttrList->filters();
 124   if (aFilters.get())
 125     aFOperation->setFeature(aFilters);
 126   myWorkshop->processLaunchOperation(aFOperation);
 127 }
 128
 129 //*****************************************************************************
 130 //*****************************************************************************
 131 //*****************************************************************************
 132 ModuleBase_FilterItem::ModuleBase_FilterItem(
 133   const std::string& theFilter, ModuleBase_WidgetSelectionFilter* theParent)
 134   : QWidget(theParent->filtersWidget()), myFilterID(theFilter),
 135     mySelection(std::dynamic_pointer_cast<ModelAPI_FiltersFeature>(theParent->feature()))
 136 {
 137   std::string aXmlString = ModelAPI_Session::get()->filters()->filter(theFilter)->xmlRepresentation();
 138   if (aXmlString.length() == 0)
 139     addItemRow(this);
 140   else {
 141     ModuleBase_WidgetFactory aFactory(aXmlString, theParent->workshop());
 142     Config_ValidatorReader aValidatorReader(aXmlString, true);
 143     aValidatorReader.setFeatureId(mySelection->getKind());
 144     aValidatorReader.readAll();
 145
 146     QVBoxLayout* aLayout = new QVBoxLayout(this);
 147     ModuleBase_Tools::zeroMargins(aLayout);
 148
 149     QWidget* aItemRow = new QWidget(this);
 150     addItemRow(aItemRow);
 151     aLayout->addWidget(aItemRow);
 152
 153     ModuleBase_PageWidget* aParamsWgt = new ModuleBase_PageWidget(this);
 154     aParamsWgt->setFrameStyle(QFrame::Box | QFrame::Raised);
 155     aFactory.createWidget(aParamsWgt);
 156     ModuleBase_Tools::zeroMargins(aParamsWgt->layout());
 157     myWidgets = aFactory.getModelWidgets();
 158     foreach(ModuleBase_ModelWidget* aWidget, myWidgets) {
 159       aWidget->setFeature(theParent->feature());
 160       connect(aWidget, SIGNAL(focusInWidget(ModuleBase_ModelWidget*)),
 161         theParent, SIGNAL(focusInWidget(ModuleBase_ModelWidget*)));
 162       connect(aWidget, SIGNAL(focusOutWidget(ModuleBase_ModelWidget*)),
 163         theParent, SIGNAL(focusOutWidget(ModuleBase_ModelWidget*)));
 164       connect(aWidget, SIGNAL(objectUpdated()), theParent, SLOT(onObjectUpdated()));
 165     }
 166     aLayout->addWidget(aParamsWgt);
 167   }
 168 }
 169
 170 void ModuleBase_FilterItem::addItemRow(QWidget* theParent)
 171 {
 172   QHBoxLayout* aLayout = new QHBoxLayout(theParent);
 173   ModuleBase_Tools::zeroMargins(aLayout);
 174
 175   // Reverse filter button
 176   myRevBtn = new QToolButton(theParent);
 177   myRevBtn->setCheckable(true);
 178   myRevBtn->setChecked(false);
 179   myRevBtn->setAutoRaise(true);
 180   myRevBtn->setIcon(QIcon(":pictures/add.png"));
 181   myRevBtn->setToolTip(tr("Reverse the filter"));
 182   connect(myRevBtn, SIGNAL(toggled(bool)), SLOT(onReverse(bool)));
 183   aLayout->addWidget(myRevBtn);
 184
 185   const std::string& aFilterName = ModelAPI_Session::get()->filters()->filter(myFilterID)->name();
 186   aLayout->addWidget(new QLabel(aFilterName.c_str(), theParent), 1);
 187
 188   QToolButton* aDelBtn = new QToolButton(theParent);
 189   aDelBtn->setIcon(QIcon(":pictures/delete.png"));
 190   aDelBtn->setAutoRaise(true);
 191   aDelBtn->setToolTip(tr("Delete the filter"));
 192   connect(aDelBtn, SIGNAL(clicked(bool)), SLOT(onDelete()));
 193   aLayout->addWidget(aDelBtn);
 194 }
 195
 196 void ModuleBase_FilterItem::onReverse(bool theCheck)
 197 {
 198   mySelection->setReversed(myFilterID, theCheck);
 199   if (theCheck)
 200     myRevBtn->setIcon(QIcon(":pictures/reverce.png"));
 201   else
 202     myRevBtn->setIcon(QIcon(":pictures/add.png"));
 203   emit reversedItem(this);
 204 }
 205
 206 void ModuleBase_FilterItem::onDelete()
 207 {
 208   emit deleteItem(this);
 209 }
 210
 211 QList<QWidget*> ModuleBase_FilterItem::getControls() const
 212 {
 213   QList<QWidget*> aWidgetsList;
 214   foreach(ModuleBase_ModelWidget* aWgt, myWidgets) {
 215     QList<QWidget*> aSubList = aWgt->getControls();
 216     foreach(QWidget* aSub, aSubList) {
 217       aWidgetsList.append(aSub);
 218     }
 219   }
 220   return aWidgetsList;
 221 }
 222
 223
 224 //*****************************************************************************
 225 //*****************************************************************************
 226 //*****************************************************************************
 227 ModuleBase_WidgetSelectionFilter::ModuleBase_WidgetSelectionFilter(QWidget* theParent,
 228   ModuleBase_IWorkshop* theWorkshop, const Config_WidgetAPI* theData)
 229   : ModuleBase_ModelWidget(theParent, theData),
 230   myWorkshop(theWorkshop),
 231   mySelectorFeature(SelectorFeature),
 232   mySelectorAttribute(AttributeId)
 233 {
 234   // Clear Old selection
 235   AttributeSelectionListPtr aAttrList = mySelectorFeature->selectionList(mySelectorAttribute);
 236   mySelectionType = selectionType(aAttrList->selectionType().c_str());
 237   aAttrList->clear();
 238
 239   // Define widgets
 240   QVBoxLayout* aMainLayout = new QVBoxLayout(this);
 241   ModuleBase_Tools::adjustMargins(aMainLayout);
 242
 243   QGroupBox* aFiltersGroup = new QGroupBox(tr("Filters"), this);
 244   QVBoxLayout* aGroupLayout = new QVBoxLayout(aFiltersGroup);
 245   aGroupLayout->setContentsMargins(0, 0, 0, 0);
 246   aGroupLayout->setSpacing(0);
 247
 248   myFiltersWgt = new QWidget();
 249   myFiltersLayout = new QVBoxLayout(myFiltersWgt);
 250   myFiltersLayout->setContentsMargins(0, 0, 0, 0);
 251   aGroupLayout->addWidget(myFiltersWgt);
 252
 253   myFiltersCombo = new QComboBox(aFiltersGroup);
 254   myFiltersCombo->addItem(tr("Add new filter..."));
 255   SessionPtr aSession = ModelAPI_Session::get();
 256   std::list<FilterPtr> allFilters =
 257     aSession->filters()->filters((GeomAPI_Shape::ShapeType) mySelectionType);
 258   QStringList aItems;
 259   std::list<FilterPtr>::const_iterator aIt;
 260   for (aIt = allFilters.cbegin(); aIt != allFilters.cend(); aIt++) {
 261     aItems.push_back((*aIt)->name().c_str());
 262     myFilters.push_back(aSession->filters()->id(*aIt));
 263   }
 264   myFiltersCombo->addItems(aItems);
 265   connect(myFiltersCombo, SIGNAL(currentIndexChanged(int)), SLOT(onAddFilter(int)));
 266
 267   aGroupLayout->addWidget(myFiltersCombo);
 268   aMainLayout->addWidget(aFiltersGroup);
 269
 270   // Select Button
 271   QWidget* aBtnWgt = new QWidget(this);
 272   QHBoxLayout* aBtnLayout = new QHBoxLayout(aBtnWgt);
 273   ModuleBase_Tools::adjustMargins(aBtnLayout);
 274
 275   aBtnLayout->addStretch(1);
 276
 277   mySelectBtn = new QPushButton(tr("Select"), aBtnWgt);
 278   connect(mySelectBtn, SIGNAL(clicked()), SLOT(onSelect()));
 279   aBtnLayout->addWidget(mySelectBtn);
 280
 281   aMainLayout->addWidget(aBtnWgt);
 282
 283   // Label widgets
 284   QWidget* aLblWgt = new QWidget(this);
 285   QHBoxLayout* aLblLayout = new QHBoxLayout(aLblWgt);
 286   ModuleBase_Tools::zeroMargins(aLblLayout);
 287
 288   aLblLayout->addWidget(new QLabel(tr("Number of selected objects:"), aLblWgt));
 289
 290   myNbLbl = new QLabel("0", aLblWgt);
 291   aLblLayout->addWidget(myNbLbl);
 292
 293   // Show only button
 294   myShowBtn = new QCheckBox(tr("Show only"), this);
 295   connect(myShowBtn, SIGNAL(toggled(bool)), SLOT(onShowOnly(bool)));
 296   aLblLayout->addWidget(myShowBtn);
 297
 298   aMainLayout->addWidget(aLblWgt);
 299
 300   aMainLayout->addStretch(1);
 301
 302   updateSelectBtn();
 303 }
 304
 305 ModuleBase_WidgetSelectionFilter::~ModuleBase_WidgetSelectionFilter()
 306 {
 307   myValues.clear();
 308   if (!myPreview.IsNull()) {
 309     Handle(AIS_InteractiveContext) aCtx = myWorkshop->viewer()->AISContext();
 310     aCtx->Remove(myPreview, false);
 311     myPreview.Nullify();
 312     if (myShowBtn->isChecked()) {
 313       AIS_ListOfInteractive::const_iterator aIt;
 314       Handle(AIS_Shape) aShapeIO;
 315       for (aIt = myListIO.cbegin(); aIt != myListIO.cend(); aIt++) {
 316         aShapeIO = Handle(AIS_Shape)::DownCast(*aIt);
 317         if (!aShapeIO.IsNull()) {
 318           aCtx->Display(aShapeIO, false);
 319         }
 320       }
 321     }
 322     aCtx->UpdateCurrentViewer();
 323   }
 324   SelectorFeature = FeaturePtr();
 325   AttributeId = "";
 326 }
 327
 328 void ModuleBase_WidgetSelectionFilter::onAddFilter(int theIndex)
 329 {
 330   if (theIndex == 0)
 331     return;
 332
 333   std::list<std::string>::iterator aIt;
 334   int i;
 335   std::string aFilter;
 336   for (aIt = myFilters.begin(), i = 0; aIt != myFilters.cend(); i++, aIt++) {
 337     if (i == (theIndex - 1)) {
 338       aFilter = (*aIt);
 339       break;
 340     }
 341   }
 342   onAddFilter(aFilter);
 343   FiltersFeaturePtr aFiltersFeature =
 344     std::dynamic_pointer_cast<ModelAPI_FiltersFeature>(myFeature);
 345   aFiltersFeature->addFilter(aFilter);
 346
 347   myFiltersCombo->setCurrentIndex(0);
 348   myFiltersCombo->removeItem(theIndex);
 349   updateObject(myFeature);
 350 }
 351
 352 void ModuleBase_WidgetSelectionFilter::onAddFilter(const std::string& theFilter)
 353 {
 354   if (theFilter.length() == 0)
 355     return;
 356   std::list<std::string>::const_iterator aIt;
 357   for (aIt = myUseFilters.cbegin(); aIt != myUseFilters.cend(); aIt++) {
 358     if (theFilter == (*aIt))
 359       return;
 360   }
 361   myFilters.remove(theFilter);
 362   myUseFilters.push_back(theFilter);
 363   ModuleBase_FilterItem* aItem = new ModuleBase_FilterItem(theFilter, this);
 364   connect(aItem, SIGNAL(deleteItem(ModuleBase_FilterItem*)),
 365     SLOT(onDeleteItem(ModuleBase_FilterItem*)));
 366   connect(aItem, SIGNAL(reversedItem(ModuleBase_FilterItem*)),
 367     SLOT(onReverseItem(ModuleBase_FilterItem*)));
 368   myFiltersLayout->addWidget(aItem);
 369
 370   updateSelectBtn();
 371   clearCurrentSelection(true);
 372   updateNumberSelected();
 373 }
 374
 375 void ModuleBase_WidgetSelectionFilter::onDeleteItem(ModuleBase_FilterItem* theItem)
 376 {
 377   std::string aFilter = theItem->filter();
 378   QList<ModuleBase_ModelWidget*> aWidgets = theItem->widgets();
 379   foreach(ModuleBase_ModelWidget* aWgt, aWidgets) {
 380     aWgt->deactivate();
 381   }
 382   myFiltersLayout->removeWidget(theItem);
 383   theItem->deleteLater();
 384
 385   myUseFilters.remove(aFilter);
 386   myFilters.push_back(aFilter);
 387   myFiltersCombo->addItem(ModelAPI_Session::get()->filters()->filter(aFilter)->name().c_str());
 388
 389   FiltersFeaturePtr aFiltersFeature =
 390     std::dynamic_pointer_cast<ModelAPI_FiltersFeature>(myFeature);
 391   aFiltersFeature->removeFilter(aFilter);
 392
 393   updateSelectBtn();
 394   clearCurrentSelection(true);
 395   updateNumberSelected();
 396
 397   myWorkshop->deactivateCurrentSelector();
 398   myWorkshop->selectionActivate()->updateSelectionModes();
 399   myWorkshop->selectionActivate()->updateSelectionFilters();
 400   redisplayFeature();
 401   myFiltersCombo->setFocus();
 402   updateObject(myFeature);
 403 }
 404
 405
 406 void ModuleBase_WidgetSelectionFilter::redisplayFeature()
 407 {
 408   static Events_ID aDispEvent = Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 409   ModelAPI_EventCreator::get()->sendUpdated(myFeature, aDispEvent);
 410   Events_Loop::loop()->flush(aDispEvent);
 411 }
 412
 413 void ModuleBase_WidgetSelectionFilter::onReverseItem(ModuleBase_FilterItem* theItem)
 414 {
 415   updateSelectBtn();
 416   clearCurrentSelection(true);
 417   updateNumberSelected();
 418 }
 419
 420 void ModuleBase_WidgetSelectionFilter::onSelect()
 421 {
 422   if (myUseFilters.size() == 0)
 423     return;
 424   Handle(AIS_InteractiveContext) aCtx = myWorkshop->viewer()->AISContext();
 425   if (aCtx.IsNull())
 426     return;
 427
 428   clearCurrentSelection();
 429
 430   BRep_Builder aBuilder;
 431   TopoDS_Compound aComp;
 432   aBuilder.MakeCompound(aComp);
 433
 434   DocumentPtr aDoc = myFeature->document();
 435   int aNb = aDoc->size(ModelAPI_ResultBody::group());
 436   ObjectPtr aObj;
 437   ResultBodyPtr aBody;
 438   GeomShapePtr aShape;
 439   for (int i = 0; i < aNb; i++) {
 440     aObj = aDoc->object(ModelAPI_ResultBody::group(), i);
 441     aBody = std::dynamic_pointer_cast<ModelAPI_ResultBody>(aObj);
 442     GeomShapePtr aShape = aBody->shape();
 443     std::list<GeomShapePtr> aSubShapes =
 444       aShape->subShapes((GeomAPI_Shape::ShapeType)mySelectionType);
 445     TopTools_MapOfShape alreadyThere;
 446     std::list<GeomShapePtr>::const_iterator aShapesIt;
 447     for (aShapesIt = aSubShapes.cbegin(); aShapesIt != aSubShapes.cend(); aShapesIt++) {
 448       GeomShapePtr aShape = (*aShapesIt);
 449       TopoDS_Shape aTShape = aShape->impl<TopoDS_Shape>();
 450       if (!alreadyThere.Add(aTShape))
 451         continue;
 452       static SessionPtr aSession = ModelAPI_Session::get();
 453       bool isValid = aSession->filters()->isValid(myFeature, aShape);
 454       if (isValid) {
 455         aBuilder.Add(aComp, aTShape);
 456         ModuleBase_ViewerPrsPtr aValue(new ModuleBase_ViewerPrs(aObj, aShape));
 457         myValues.append(aValue);
 458       }
 459     }
 460   }
 461
 462   if (myValues.size() > 0)
 463     updatePreview(aComp);
 464   updateNumberSelected();
 465   updateObject(myFeature);
 466 }
 467
 468 void ModuleBase_WidgetSelectionFilter::updatePreview(const TopoDS_Shape& theShape)
 469 {
 470   Handle(AIS_InteractiveContext) aCtx = myWorkshop->viewer()->AISContext();
 471   if (aCtx.IsNull())
 472     return;
 473
 474   if (myPreview.IsNull()) {
 475     myPreview = new AIS_Shape(theShape);
 476     myPreview->SetDisplayMode(AIS_Shaded);
 477     myPreview->SetColor(Quantity_NOC_BLUE1);
 478     Handle(Prs3d_Drawer) aDrawer = myPreview->Attributes();
 479     if (aDrawer->HasOwnPointAspect()) {
 480       aDrawer->PointAspect()->SetTypeOfMarker(Aspect_TOM_O_STAR);
 481       aDrawer->PointAspect()->SetColor(Quantity_NOC_BLUE1);
 482       aDrawer->PointAspect()->SetScale(2.);
 483     }
 484     else
 485       aDrawer->SetPointAspect(new Prs3d_PointAspect(Aspect_TOM_O_STAR, Quantity_NOC_BLUE1, 2.));
 486     myPreview->SetTransparency();
 487     aCtx->Display(myPreview, true);
 488     aCtx->Deactivate(myPreview);
 489   }
 490   else {
 491     myPreview->Set(theShape);
 492     aCtx->Redisplay(myPreview, true);
 493   }
 494 }
 495
 496
 497 void ModuleBase_WidgetSelectionFilter::onShowOnly(bool theShow)
 498 {
 499   if (myPreview.IsNull())
 500     return;
 501   Handle(AIS_InteractiveContext) aCtx = myWorkshop->viewer()->AISContext();
 502
 503   if (theShow) {
 504     myListIO.Clear();
 505     aCtx->DisplayedObjects(AIS_KOI_Shape, -1, myListIO);
 506     myListIO.Remove(myPreview);
 507   }
 508   AIS_ListOfInteractive::const_iterator aIt;
 509   Handle(AIS_Shape) aShapeIO;
 510   for (aIt = myListIO.cbegin(); aIt != myListIO.cend(); aIt++) {
 511     aShapeIO = Handle(AIS_Shape)::DownCast(*aIt);
 512     if (!aShapeIO.IsNull()) {
 513       if (theShow)
 514         aCtx->Erase(aShapeIO, false);
 515       else
 516         aCtx->Display(aShapeIO, false);
 517     }
 518   }
 519   aCtx->UpdateCurrentViewer();
 520 }
 521
 522 void ModuleBase_WidgetSelectionFilter::updateSelectBtn()
 523 {
 524   mySelectBtn->setEnabled(myUseFilters.size() > 0);
 525 }
 526
 527 void ModuleBase_WidgetSelectionFilter::updateNumberSelected()
 528 {
 529   int aNb = myValues.size();
 530   myNbLbl->setText(QString::number(aNb));
 531   //QString aErr = () ? tr("Selection is empty") : "";
 532   if (aNb == 0)
 533     myFeature->setError(tr("Selection is empty").toStdString(), false, false);
 534   else {
 535     myFeature->setError("", false, false);
 536     myFeature->data()->execState(ModelAPI_StateDone);
 537   }
 538 }
 539
 540 QList<QWidget*> ModuleBase_WidgetSelectionFilter::getControls() const
 541 {
 542   QList<QWidget*> aWidgets;
 543   QList<ModuleBase_FilterItem*> aItems = myFiltersWgt->findChildren<ModuleBase_FilterItem*>();
 544   foreach(ModuleBase_FilterItem* aItem, aItems) {
 545     QList<QWidget*> aSubList = aItem->getControls();
 546     foreach(QWidget* aWgt, aSubList) {
 547       aWidgets.append(aWgt);
 548     }
 549   }
 550   aWidgets.append(myFiltersCombo);
 551   return aWidgets;
 552 }
 553
 554 void ModuleBase_WidgetSelectionFilter::clearCurrentSelection(bool toUpdate)
 555 {
 556   myValues.clear();
 557   if (!myPreview.IsNull()) {
 558     Handle(AIS_InteractiveContext) aCtx = myWorkshop->viewer()->AISContext();
 559     aCtx->Remove(myPreview, toUpdate);
 560     myPreview.Nullify();
 561   }
 562 }
 563
 564 void ModuleBase_WidgetSelectionFilter::onFeatureAccepted()
 565 {
 566   AttributePtr aAttr = mySelectorFeature->attribute(mySelectorAttribute);
 567   AttributeSelectionListPtr aSelListAttr =
 568     std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(aAttr);
 569   aSelListAttr->clear();
 570   foreach(ModuleBase_ViewerPrsPtr aPrs, myValues) {
 571     aSelListAttr->append(aPrs->object(), aPrs->shape());
 572   }
 573 }
 574
 575 bool ModuleBase_WidgetSelectionFilter::storeValueCustom()
 576 {
 577   ModuleBase_ModelWidget* aActive = myWorkshop->propertyPanel()->activeWidget();
 578   if (aActive)
 579     return aActive->storeValue();
 580   updateObject(myFeature);
 581   return true;
 582 }
 583
 584 bool ModuleBase_WidgetSelectionFilter::restoreValueCustom()
 585 {
 586   ModelAPI_FiltersFactory* aFactory = ModelAPI_Session::get()->filters();
 587   FiltersFeaturePtr aFiltersFeature = std::dynamic_pointer_cast<ModelAPI_FiltersFeature>(myFeature);
 588   std::list<std::string> aFilters = aFiltersFeature->filters();
 589   std::list<std::string>::const_iterator aIt;
 590   for (aIt = aFilters.cbegin(); aIt != aFilters.cend(); aIt++) {
 591     std::string aStr = (*aIt);
 592     onAddFilter(aStr);
 593     FilterPtr aFilterObj = aFactory->filter(aStr);
 594     int aId = myFiltersCombo->findText(aFilterObj->name().c_str());
 595     if (aId != -1)
 596       myFiltersCombo->removeItem(aId);
 597   }
 598   // Init filters member of the parent attribute
 599   AttributeSelectionListPtr aAttrList = mySelectorFeature->selectionList(mySelectorAttribute);
 600   if (aAttrList->filters() != aFiltersFeature) {
 601     aAttrList->setFilters(aFiltersFeature);
 602   }
 603
 604   QList<QWidget*> aWidgets;
 605   QList<ModuleBase_FilterItem*> aItems = myFiltersWgt->findChildren<ModuleBase_FilterItem*>();
 606   foreach(ModuleBase_FilterItem* aItem, aItems) {
 607     QList<ModuleBase_ModelWidget*> aSubList = aItem->widgets();
 608     foreach(ModuleBase_ModelWidget* aWgt, aSubList) {
 609       aWgt->restoreValue();
 610     }
 611   }
 612   return true;
 613 }
 614
 615 QString ModuleBase_WidgetSelectionFilter::getError(const bool theValueStateChecked) const
 616 {
 617   QString aErrorMsg = ModuleBase_ModelWidget::getError(theValueStateChecked);
 618   if (aErrorMsg.isEmpty()) {
 619     if (myValues.size() == 0)
 620       aErrorMsg = tr("Selection is empty");
 621   }
 622   return aErrorMsg;
 623 }
 624
 625 void ModuleBase_WidgetSelectionFilter::onObjectUpdated()
 626 {
 627   clearCurrentSelection(true);
 628   updateNumberSelected();
 629   updateObject(myFeature);
 630 }