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Issue #1015: The validate icon must be greyed and inactive instead of red and active
[modules/shaper.git] / src / XGUI / XGUI_PropertyPanel.cpp
old mode 100644 (file)
new mode 100755 (executable)
index 355614b..c2c3186
@@ -9,8 +9,17 @@
 
 #include <XGUI_PropertyPanel.h>
 #include <XGUI_ActionsMgr.h>
+#include <XGUI_OperationMgr.h>
 //#include <AppElements_Constants.h>
 #include <ModuleBase_WidgetMultiSelector.h>
+#include <ModuleBase_Tools.h>
+#include <ModuleBase_PageBase.h>
+#include <ModuleBase_PageWidget.h>
+#include <ModuleBase_WidgetFactory.h>
+#include <ModuleBase_OperationDescription.h>
+
+#include <ModelAPI_Session.h>
+#include <ModelAPI_Validator.h>
 
 #include <QEvent>
 #include <QFrame>
@@ -19,7 +28,7 @@
 #include <QLayoutItem>
 #include <QToolButton>
 #include <QVBoxLayout>
-#include <QVBoxLayout>
+#include <QGridLayout>
 #include <QWidget>
 #include <QToolButton>
 #include <QAction>
 #include <iostream>
 #endif
 
-XGUI_PropertyPanel::XGUI_PropertyPanel(QWidget* theParent)
+//#define DEBUG_TAB_WIDGETS
+
+XGUI_PropertyPanel::XGUI_PropertyPanel(QWidget* theParent, XGUI_OperationMgr* theMgr)
     : ModuleBase_IPropertyPanel(theParent), 
-    myActiveWidget(NULL)
+    myActiveWidget(NULL),
+    myPreselectionWidget(NULL),
+    myPanelPage(NULL),
+    myOperationMgr(theMgr)
 {
-  this->setWindowTitle(tr("Property Panel"));
-  QAction* aViewAct = this->toggleViewAction();
-  this->setObjectName(PROP_PANEL);
+  setWindowTitle(tr("Property Panel"));
+  QAction* aViewAct = toggleViewAction();
+  setObjectName(PROP_PANEL);
   setStyleSheet("::title { position: relative; padding-left: 5px; text-align: left center }");
 
   QWidget* aContent = new QWidget(this);
-  myMainLayout = new QVBoxLayout(aContent);
-  myMainLayout->setContentsMargins(3, 3, 3, 3);
-  this->setWidget(aContent);
+  QGridLayout* aMainLayout = new QGridLayout(aContent);
+  const int kPanelColumn = 0;
+  int aPanelRow = 0;
+  aMainLayout->setContentsMargins(3, 3, 3, 3);
+  setWidget(aContent);
 
   QFrame* aFrm = new QFrame(aContent);
-  aFrm->setFrameStyle(QFrame::Sunken);
+  aFrm->setFrameStyle(QFrame::Raised);
   aFrm->setFrameShape(QFrame::Panel);
   QHBoxLayout* aBtnLay = new QHBoxLayout(aFrm);
-  aBtnLay->setContentsMargins(0, 0, 0, 0);
-  myMainLayout->addWidget(aFrm);
+  ModuleBase_Tools::zeroMargins(aBtnLay);
+  aMainLayout->addWidget(aFrm, aPanelRow++, kPanelColumn);
+
+  myHeaderWidget = aFrm;
 
   QStringList aBtnNames;
   aBtnNames << QString(PROP_PANEL_HELP)
@@ -60,11 +78,24 @@ XGUI_PropertyPanel::XGUI_PropertyPanel(QWidget* theParent)
     aBtnLay->addWidget(aBtn);
   }
   aBtnLay->insertStretch(1, 1);
-  // aBtn->setShortcut(QKeySequence(Qt::Key_Escape));
 
-  myCustomWidget = new QWidget(aContent);
-  myMainLayout->addWidget(myCustomWidget);
-  setStretchEnabled(true);
+  myPanelPage = new ModuleBase_PageWidget(aContent);
+  myPanelPage->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::MinimumExpanding);
+  aMainLayout->addWidget(myPanelPage, aPanelRow, kPanelColumn);
+
+  // spit to make the preview button on the bottom of the panel
+  aMainLayout->setRowStretch(aPanelRow++, 1);
+
+  // preview button on the bottom of panel
+  aFrm = new QFrame(aContent);
+  aBtnLay = new QHBoxLayout(aFrm);
+  aBtnLay->addStretch(1);
+  ModuleBase_Tools::zeroMargins(aBtnLay);
+  aMainLayout->addWidget(aFrm, aPanelRow++, kPanelColumn);
+
+  QToolButton* aBtn = new QToolButton(aFrm);
+  aBtn->setObjectName(PROP_PANEL_PREVIEW);
+  aBtnLay->addWidget(aBtn);
 }
 
 XGUI_PropertyPanel::~XGUI_PropertyPanel()
@@ -75,9 +106,27 @@ void XGUI_PropertyPanel::cleanContent()
 {
   if (myActiveWidget)
     myActiveWidget->deactivate();
+
+  /// as the widgets are deleted later, it is important that the signals
+  /// of these widgets are not processed. An example of the error is issue 986.
+  /// In the given case, the property panel is firstly filled by new widgets
+  /// of restarted operation and after that the mouse release signal come from
+  /// the widget of the previous operation (Point2d widget about mouse is released
+  /// and focus is out of this widget)
+  QList<ModuleBase_ModelWidget*>::const_iterator anIt = myWidgets.begin(),
+                                                 aLast = myWidgets.end();
+  for (; anIt != aLast; anIt++) {
+    QWidget* aWidget = *anIt;
+    if (aWidget) {
+      aWidget->blockSignals(true);
+    }
+  }
+
   myWidgets.clear();
-  qDeleteAll(myCustomWidget->children());
+  myPanelPage->clearPage();
   myActiveWidget = NULL;
+
+  findButton(PROP_PANEL_PREVIEW)->setVisible(false); /// by default it is hidden
   setWindowTitle(tr("Property Panel"));
 }
 
@@ -85,44 +134,16 @@ void XGUI_PropertyPanel::setModelWidgets(const QList<ModuleBase_ModelWidget*>& t
 {
   myWidgets = theWidgets;
   if (theWidgets.empty()) return;
-  bool isEnableStretch = true;
-  QList<ModuleBase_ModelWidget*>::const_iterator anIt = theWidgets.begin(), aLast =
-      theWidgets.end();
-  for (; anIt != aLast; anIt++) {
-    connect(*anIt, SIGNAL(keyReleased(QKeyEvent*)), this, SIGNAL(keyReleased(QKeyEvent*)));
-    connect(*anIt, SIGNAL(focusOutWidget(ModuleBase_ModelWidget*)),
-            this,  SLOT(activateNextWidget(ModuleBase_ModelWidget*)));
-    connect(*anIt, SIGNAL(focusInWidget(ModuleBase_ModelWidget*)),
-            this,  SLOT(activateWidget(ModuleBase_ModelWidget*)));
-
-    //ModuleBase_WidgetPoint2D* aPointWidget = dynamic_cast<ModuleBase_WidgetPoint2D*>(*anIt);
-    //if (aPointWidget)
-    //  connect(aPointWidget, SIGNAL(storedPoint2D(ObjectPtr, const std::string&)), this,
-    //          SIGNAL(storedPoint2D(ObjectPtr, const std::string&)))
-    //}
-
-    if (!isEnableStretch) continue;
-    foreach(QWidget* eachWidget, (*anIt)->getControls()) {
-      QSizePolicy::Policy aVPolicy = eachWidget->sizePolicy().verticalPolicy();
-      if(aVPolicy == QSizePolicy::Expanding ||
-         aVPolicy == QSizePolicy::MinimumExpanding) {
-        isEnableStretch = false;
-      }
-    }
-  }
-  setStretchEnabled(isEnableStretch);
-  ModuleBase_ModelWidget* aLastWidget = theWidgets.last();
-  if (aLastWidget) {
-    QList<QWidget*> aControls = aLastWidget->getControls();
-    if (!aControls.empty()) {
-      QWidget* aLastControl = aControls.last();
-
-      QToolButton* anOkBtn = findChild<QToolButton*>(PROP_PANEL_OK);
-      QToolButton* aCancelBtn = findChild<QToolButton*>(PROP_PANEL_CANCEL);
+  foreach (ModuleBase_ModelWidget* aWidget, theWidgets) {
+    connect(aWidget, SIGNAL(focusInWidget(ModuleBase_ModelWidget*)),
+            this,    SLOT(onFocusInWidget(ModuleBase_ModelWidget*)));
+    connect(aWidget, SIGNAL(focusOutWidget(ModuleBase_ModelWidget*)),
+            this,    SLOT(onActivateNextWidget(ModuleBase_ModelWidget*)));
+    connect(aWidget, SIGNAL(keyReleased(QObject*, QKeyEvent*)),
+            this,    SIGNAL(keyReleased(QObject*, QKeyEvent*)));
+    connect(aWidget, SIGNAL(enterClicked(QObject*)),
+            this,    SIGNAL(enterClicked(QObject*)));
 
-      setTabOrder(aLastControl, anOkBtn);
-      setTabOrder(anOkBtn, aCancelBtn);
-    }
   }
 }
 
@@ -131,9 +152,9 @@ const QList<ModuleBase_ModelWidget*>& XGUI_PropertyPanel::modelWidgets() const
   return myWidgets;
 }
 
-QWidget* XGUI_PropertyPanel::contentWidget()
+ModuleBase_PageBase* XGUI_PropertyPanel::contentWidget()
 {
-  return myCustomWidget;
+  return static_cast<ModuleBase_PageBase*>(myPanelPage);
 }
 
 void XGUI_PropertyPanel::updateContentWidget(FeaturePtr theFeature)
@@ -143,53 +164,237 @@ void XGUI_PropertyPanel::updateContentWidget(FeaturePtr theFeature)
     return;
   if (theFeature->isAction() || !theFeature->data())
     return;
-  foreach(ModuleBase_ModelWidget* eachWidget, myWidgets)
-  {
-    eachWidget->setFeature(theFeature);
+  foreach(ModuleBase_ModelWidget* eachWidget, myWidgets) {
+    if (!eachWidget->feature().get())
+      eachWidget->setFeature(theFeature);
     eachWidget->restoreValue();
   }
   // the repaint is used here to immediately react in GUI to the values change.
   repaint();
 }
 
+void XGUI_PropertyPanel::createContentPanel(FeaturePtr theFeature)
+{
+  // Invalid feature case on abort of the operation
+  if (theFeature.get() == NULL)
+    return;
+  if (theFeature->isAction() || !theFeature->data())
+    return;
+
+  if (myWidgets.empty()) {
+    ModuleBase_Operation* anOperation = myOperationMgr->currentOperation();
+    QString aXmlRepr = anOperation->getDescription()->xmlRepresentation();
+
+    ModuleBase_WidgetFactory aFactory(aXmlRepr.toStdString(), myOperationMgr->workshop());
+    aFactory.createPanel(contentWidget(), theFeature);
+    /// Apply button should be update if the feature was modified by the panel
+    myOperationMgr->onValidateOperation();
+  }
+}
+
 void XGUI_PropertyPanel::activateNextWidget(ModuleBase_ModelWidget* theWidget)
+{
+  // it is possible that the property panel widgets have not been visualized
+  // (e.g. on start operation), so it is strictly important to do not check visualized state
+  activateNextWidget(theWidget, false);
+}
+
+void XGUI_PropertyPanel::onFocusInWidget(ModuleBase_ModelWidget* theWidget)
+{
+  if (theWidget->canAcceptFocus())
+    activateWidget(theWidget);
+}
+
+void XGUI_PropertyPanel::onActivateNextWidget(ModuleBase_ModelWidget* theWidget)
+{
+  // this slot happens when some widget lost focus, the next widget which accepts the focus
+  // should be shown, so the second parameter is true
+  // it is important for features where in cases the same attributes are used, isCase for this
+  // attribute returns true, however it can be placed in hidden stack widget(extrusion: elements,
+  // sketch multi rotation -> single/full point)
+  // it is important to check the widget visibility to do not check of the next widget visible
+  // state if the current is not shown. (example: sketch circle re-entrant operation after mouse
+  // release in the viewer, next, radius, widget should be activated but the first is not visualized)
+  bool isVisible = theWidget->isVisible();
+  activateNextWidget(theWidget, isVisible);
+}
+
+
+void XGUI_PropertyPanel::activateNextWidget(ModuleBase_ModelWidget* theWidget,
+                                            const bool isCheckVisibility)
 {
   // TO CHECK: Editing operation does not have automatical activation of widgets
   if (isEditingMode()) {
     activateWidget(NULL);
     return;
   }
-  ModuleBase_ModelWidget* aNextWidget = 0;
+  ModelAPI_ValidatorsFactory* aValidators = ModelAPI_Session::get()->validators();
+
   QList<ModuleBase_ModelWidget*>::const_iterator anIt = myWidgets.begin(), aLast = myWidgets.end();
   bool isFoundWidget = false;
-  for (; anIt != aLast && !aNextWidget; anIt++) {
+  ModuleBase_Tools::activateWindow(this, "XGUI_PropertyPanel::activateNextWidget()");
+  for (; anIt != aLast; anIt++) {
+    ModuleBase_ModelWidget* aCurrentWidget = *anIt;
     if (isFoundWidget || !theWidget) {
-      if ((*anIt)->focusTo()) {
-        aNextWidget = *anIt;
+
+      if (!aValidators->isCase(aCurrentWidget->feature(), aCurrentWidget->attributeID()))
+        continue; // this attribute is not participated in the current case
+      if (isCheckVisibility && !aCurrentWidget->isInternal()) {
+        if (!aCurrentWidget->isVisible())
+          continue;
+      }
+      if (!aCurrentWidget->isObligatory())
+        continue; // not obligatory widgets are not activated automatically
+
+      if (aCurrentWidget->focusTo()) {
+        return;
       }
     }
-    isFoundWidget = (*anIt) == theWidget;
+    isFoundWidget = isFoundWidget || (*anIt) == theWidget;
   }
-  // Normaly focusTo is enough to activate widget
-  // here is a special case on mouse click in the viewer
-  //if(aNextWidget == NULL) {
-    activateWidget(aNextWidget);
-  //}
+  // set focus to Ok/Cancel button in Property panel if there are no more active widgets
+  // it should be performed before activateWidget(NULL) because it emits some signals which
+  // can be processed by moudule for example as to activate another widget with setting focus
+  QWidget* aNewFocusWidget = 0;
+  QToolButton* anOkBtn = findButton(PROP_PANEL_OK);
+  if (anOkBtn->isEnabled())
+    aNewFocusWidget = anOkBtn;
+  else {
+    QToolButton* aCancelBtn = findButton(PROP_PANEL_CANCEL);
+    if (aCancelBtn->isEnabled())
+      aNewFocusWidget = aCancelBtn;
+  }
+  if (aNewFocusWidget)
+    aNewFocusWidget->setFocus(Qt::TabFocusReason);
+
+  activateWidget(NULL);
 }
 
-void XGUI_PropertyPanel::setStretchEnabled(bool isEnabled)
+void findDirectChildren(QWidget* theParent, QList<QWidget*>& theWidgets, const bool theDebug)
 {
-  if (myMainLayout->count() == 0)
-    return;
-  int aStretchIdx = myMainLayout->count() - 1;
-  bool hasStretch = myMainLayout->itemAt(aStretchIdx)->spacerItem() != NULL;
-  QLayoutItem* aChild;
-  if (isEnabled) {
-    if (!hasStretch) myMainLayout->addStretch(1);
-  } else if (hasStretch) {
-    aChild = myMainLayout->takeAt(aStretchIdx);
-    delete aChild;
+  QList<QWidget*> aWidgets;
+
+  if (theParent) {
+    QLayout* aLayout = theParent->layout();
+    if (aLayout) {
+      for (int i = 0, aCount = aLayout->count(); i < aCount; i++) {
+        QLayoutItem* anItem = aLayout->itemAt(i);
+        QWidget* aWidget = anItem ? anItem->widget() : 0;
+        if (aWidget) {
+          if (aWidget->isVisible()) {
+            if (aWidget->focusPolicy() != Qt::NoFocus)
+              theWidgets.append(aWidget);
+            findDirectChildren(aWidget, theWidgets, false);
+          }
+        }
+        else if (anItem->layout()) {
+          QLayout* aLayout = anItem->layout();
+          for (int i = 0, aCount = aLayout->count(); i < aCount; i++) {
+            QLayoutItem* anItem = aLayout->itemAt(i);
+            QWidget* aWidget = anItem ? anItem->widget() : 0;
+            if (aWidget) {
+              if (aWidget->isVisible()) {
+                if (aWidget->focusPolicy() != Qt::NoFocus)
+                  theWidgets.append(aWidget);
+                findDirectChildren(aWidget, theWidgets, false);
+              }
+            }
+            else {
+              // TODO: improve recursive search for the case when here QLayout is used
+              // currently, the switch widget uses only 1 level of qlayout in qlayout using for
+              // example for construction plane feature. If there are more levels,
+              // it should be implemented here
+            }
+          }
+        }
+      }
+    }
   }
+#ifdef DEBUG_TAB_WIDGETS
+  if (theDebug) {
+    QStringList aWidgetTypes;
+    QList<QWidget*>::const_iterator anIt =  theWidgets.begin(), aLast = theWidgets.end();
+    for (; anIt != aLast; anIt++) {
+      QWidget* aWidget = *anIt;
+      if (aWidget)
+        aWidgetTypes.append(aWidget->objectName());
+    }
+    QString anInfo = QString("theWidgets[%1]: %2").arg(theWidgets.count()).arg(aWidgetTypes.join(","));
+    qDebug(anInfo.toStdString().c_str());
+  }
+#endif
+}
+
+bool XGUI_PropertyPanel::focusNextPrevChild(bool theIsNext)
+{
+  // it wraps the Tabs clicking to follow in the chain:
+  // controls, last control, Apply, Cancel, first control, controls
+  bool isChangedFocus = false;
+
+  QWidget* aFocusWidget = focusWidget();
+#ifdef DEBUG_TAB_WIDGETS
+  if (aFocusWidget) {
+    QString anInfo = QString("focus Widget: %1").arg(aFocusWidget->objectName());
+    qDebug(anInfo.toStdString().c_str());
+  }
+#endif
+
+  QWidget* aNewFocusWidget = 0;
+  if (aFocusWidget) {
+    QList<QWidget*> aChildren;
+    findDirectChildren(this, aChildren, true);
+    int aChildrenCount = aChildren.count();
+    int aFocusWidgetIndex = aChildren.indexOf(aFocusWidget);
+    if (aFocusWidgetIndex >= 0) {
+      if (theIsNext) {
+        if (aFocusWidgetIndex == aChildrenCount-1) {
+          // after the last widget focus should be set to "Apply"
+          QToolButton* anOkBtn = findButton(PROP_PANEL_OK);
+          if (anOkBtn->isEnabled())
+            aNewFocusWidget = anOkBtn;
+          else {
+            QToolButton* aCancelBtn = findButton(PROP_PANEL_CANCEL);
+            if (aCancelBtn->isEnabled())
+              aNewFocusWidget = aCancelBtn;
+          }
+        }
+        else {
+          aNewFocusWidget = aChildren[aFocusWidgetIndex+1];
+        }
+      }
+      else {
+        if (aFocusWidgetIndex == 0) {
+          // before the first widget, the last should accept focus
+          aNewFocusWidget = aChildren[aChildrenCount - 1];
+        }
+        else {
+          // before the "Apply" button, the last should accept focus for consistency with "Next"
+          QToolButton* anOkBtn = findButton(PROP_PANEL_OK);
+          if (aFocusWidget == anOkBtn) {
+            aNewFocusWidget = aChildren[aChildrenCount - 1];
+          }
+          else {
+            aNewFocusWidget = aChildren[aFocusWidgetIndex-1];
+          }
+        }
+      }
+    }
+  }
+  if (aNewFocusWidget) {
+    if (myActiveWidget) {
+      myActiveWidget->getControls();
+      bool isFirstControl = !theIsNext;
+      QWidget* aLastFocusControl = myActiveWidget->getControlAcceptingFocus(isFirstControl);
+      if (aFocusWidget == aLastFocusControl) {
+        setActiveWidget(NULL);
+      }
+    }
+
+    //ModuleBase_Tools::setFocus(aNewFocusWidget, "XGUI_PropertyPanel::focusNextPrevChild()");
+    aNewFocusWidget->setFocus(theIsNext ? Qt::TabFocusReason : Qt::BacktabFocusReason);
+    isChangedFocus = true;
+  }
+  return isChangedFocus;
 }
 
 void XGUI_PropertyPanel::activateNextWidget()
@@ -197,37 +402,57 @@ void XGUI_PropertyPanel::activateNextWidget()
   activateNextWidget(myActiveWidget);
 }
 
-void XGUI_PropertyPanel::activateWidget(ModuleBase_ModelWidget* theWidget)
+void XGUI_PropertyPanel::activateWidget(ModuleBase_ModelWidget* theWidget, const bool theEmitSignal)
 {
+  std::string aPreviosAttributeID;
+  if(myActiveWidget)
+    aPreviosAttributeID = myActiveWidget->attributeID();
+
   // Avoid activation of already actve widget. It could happen on focusIn event many times
-  if (theWidget == myActiveWidget)
-    return;
+  if (setActiveWidget(theWidget) && theEmitSignal) {
+    emit widgetActivated(myActiveWidget);
+    if (!myActiveWidget && !isEditingMode()) {
+      emit noMoreWidgets(aPreviosAttributeID);
+    }
+  }
+}
+
+bool XGUI_PropertyPanel::setActiveWidget(ModuleBase_ModelWidget* theWidget)
+{
+  // Avoid activation of already actve widget. It could happen on focusIn event many times
+  if (theWidget == myActiveWidget) {
+    return false;
+  }
+  std::string aPreviosAttributeID;
   if(myActiveWidget) {
+    aPreviosAttributeID = myActiveWidget->attributeID();
     myActiveWidget->deactivate();
     myActiveWidget->setHighlighted(false);
   }
   if(theWidget) {
-    if (theWidget)
-      emit beforeWidgetActivated(theWidget);
-    theWidget->activate();
+    emit beforeWidgetActivated(theWidget);
     theWidget->setHighlighted(true);
+    theWidget->activate();
   }
   myActiveWidget = theWidget;
-  if (myActiveWidget)
-    emit widgetActivated(theWidget);
-  else if (!isEditingMode())
-    emit noMoreWidgets();
+  return true;
+}
+
+void XGUI_PropertyPanel::setFocusOnOkButton()
+{
+  QToolButton* anOkBtn = findButton(PROP_PANEL_OK);
+  ModuleBase_Tools::setFocus(anOkBtn, "XGUI_PropertyPanel::setFocusOnOkButton()");
 }
 
 void XGUI_PropertyPanel::setCancelEnabled(bool theEnabled)
 {
-  QToolButton* anCancelBtn = findChild<QToolButton*>(PROP_PANEL_CANCEL);
+  QToolButton* anCancelBtn = findButton(PROP_PANEL_CANCEL);
   anCancelBtn->setEnabled(theEnabled);
 }
 
 bool XGUI_PropertyPanel::isCancelEnabled() const
 {
-  QToolButton* anCancelBtn = findChild<QToolButton*>(PROP_PANEL_CANCEL);
+  QToolButton* anCancelBtn = findButton(PROP_PANEL_CANCEL);
   return anCancelBtn->isEnabled();
 }
 
@@ -242,12 +467,45 @@ void XGUI_PropertyPanel::setEditingMode(bool isEditing)
 void XGUI_PropertyPanel::setupActions(XGUI_ActionsMgr* theMgr)
 {
   QStringList aButtonNames;
-  aButtonNames << PROP_PANEL_OK << PROP_PANEL_CANCEL << PROP_PANEL_HELP;
+  aButtonNames << PROP_PANEL_OK << PROP_PANEL_CANCEL << PROP_PANEL_HELP << PROP_PANEL_PREVIEW;
   QList<XGUI_ActionsMgr::OperationStateActionId> aActionIds;
-  aActionIds << XGUI_ActionsMgr::Accept << XGUI_ActionsMgr::Abort << XGUI_ActionsMgr::Help;
+  aActionIds << XGUI_ActionsMgr::Accept << XGUI_ActionsMgr::Abort << XGUI_ActionsMgr::Help
+             << XGUI_ActionsMgr::Preview;
   for (int i = 0; i < aButtonNames.size(); ++i) {
-    QToolButton* aBtn = findChild<QToolButton*>(aButtonNames.at(i));
+    QToolButton* aBtn = findButton(aButtonNames.at(i).toStdString().c_str());
     QAction* anAct = theMgr->operationStateAction(aActionIds.at(i));
     aBtn->setDefaultAction(anAct);
   }
 }
+
+ModuleBase_ModelWidget* XGUI_PropertyPanel::preselectionWidget() const
+{
+  return myPreselectionWidget;
+}
+
+void XGUI_PropertyPanel::setPreselectionWidget(ModuleBase_ModelWidget* theWidget)
+{
+  myPreselectionWidget = theWidget;
+}
+
+
+void XGUI_PropertyPanel::closeEvent(QCloseEvent* theEvent)
+{
+  ModuleBase_Operation* aOp = myOperationMgr->currentOperation();
+  if (aOp) {
+    if (myOperationMgr->canStopOperation(aOp)) {
+      myOperationMgr->abortOperation(aOp);
+      if (myOperationMgr->hasOperation())
+        theEvent->ignore();
+      else
+        theEvent->accept();
+    } else 
+      theEvent->ignore();
+  } else
+    ModuleBase_IPropertyPanel::closeEvent(theEvent);
+}
+
+QToolButton* XGUI_PropertyPanel::findButton(const char* theInternalName) const
+{
+  return findChild<QToolButton*>(theInternalName);
+}