From db854002cff78b7b6eb6340b70990e5a6ddf56bf Mon Sep 17 00:00:00 2001
From: nds <nds@opencascade.com>
Date: Thu, 21 Nov 2013 06:58:52 +0000
Subject: [PATCH] Remove functionality by popup menu and the keyboard button
 "Delete".

---
 src/HYDROCurveCreator/CurveCreator_Widget.cxx | 27 +++++++++++++++++--
 src/HYDROCurveCreator/CurveCreator_Widget.h   |  3 +++
 2 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/src/HYDROCurveCreator/CurveCreator_Widget.cxx b/src/HYDROCurveCreator/CurveCreator_Widget.cxx
index 73ffd42b..3cf3975e 100644
--- a/src/HYDROCurveCreator/CurveCreator_Widget.cxx
+++ b/src/HYDROCurveCreator/CurveCreator_Widget.cxx
@@ -294,7 +294,7 @@ void CurveCreator_Widget::onSelectionChanged()
   QList<ActionId> anEnabledAct;
   if( myCurve ){
     anEnabledAct << NEW_SECTION_ID << MODIFICATION_MODE_ID;
-    if ( getActionMode() == ModificationMode )
+    if ( removeEnabled() )
       anEnabledAct << REMOVE_ID;
     QList<int> aSelSections = mySectionView->getSelectedSections();
     QList< QPair< int, int > > aSelPoints = mySectionView->getSelectedPoints();
@@ -309,7 +309,6 @@ void CurveCreator_Widget::onSelectionChanged()
       }*/
       if( aSelSections.size() == 1 ){
         anEnabledAct << ADDITION_MODE_ID << DETECTION_MODE_ID;
-        anEnabledAct << REMOVE_ID;
       }
       switch ( getActionMode() ) {
         case AdditionMode: {
@@ -828,6 +827,30 @@ QList< QPair< int, int > > CurveCreator_Widget::getSelectedPoints()
   return mySectionView->getSelectedPoints();
 }
 
+/**
+ * According to the widget state, performs the remove action
+ */
+void CurveCreator_Widget::removeSelected()
+{
+  onRemove();
+}
+
+/**
+ * Checks whether there are some selection to be removed
+ */
+bool CurveCreator_Widget::removeEnabled()
+{
+  bool isEnabled = getActionMode() == ModificationMode;
+  if ( !isEnabled ) {
+    QList<int> aSelSections = mySectionView->getSelectedSections();
+    CurveCreator_TreeView::SelectionType aSelType = mySectionView->getSelectionType();
+    isEnabled = aSelType == CurveCreator_TreeView::ST_SECTIONS &&
+                aSelSections.size() == 1;
+  }
+  return isEnabled;
+}
+
+
 //=================================================================================
 // function : GeometryGUI::onGetCoordsByClick()
 // purpose  : Manage mouse press events in Additon mode
diff --git a/src/HYDROCurveCreator/CurveCreator_Widget.h b/src/HYDROCurveCreator/CurveCreator_Widget.h
index 03cfd094..225e864d 100644
--- a/src/HYDROCurveCreator/CurveCreator_Widget.h
+++ b/src/HYDROCurveCreator/CurveCreator_Widget.h
@@ -65,6 +65,9 @@ public:
   QList<int> getSelectedSections();
   QList< QPair< int, int > > getSelectedPoints();
 
+  void  removeSelected();
+  bool  removeEnabled();
+
 signals:
   void selectionChanged();
   void subOperationStarted( QWidget* );
-- 
2.39.2