The method SetGroupName.

--HG--
branch : feature

src/libs/ifc/xml/vabstractpattern.cpp

@@ -1494,3 +1494,35 @@ QDomElement VAbstractPattern::CreateGroup(quint32 id, const QString &name, const
 
     return group;
 }
+
+//---------------------------------------------------------------------------------------------------------------------
+void VAbstractPattern::SetGroupName(quint32 id, const QString &name)
+{
+    QDomElement groups = CreateGroups();
+    if (not groups.isNull())
+    {
+        QDomElement group = elementById(id);
+        if (group.isElement())
+        {
+            group.setAttribute(AttrName, name);
+            modified = true;
+            emit patternChanged(false);
+        }
+        else
+        {
+            if (groups.childNodes().isEmpty())
+            {
+                QDomNode parent = groups.parentNode();
+                parent.removeChild(groups);
+            }
+
+            qDebug("Can't get group by id = %u.", id);
+            return;
+        }
+    }
+    else
+    {
+        qDebug("Can't get tag Groups.");
+        return;
+    }
+}

src/libs/ifc/xml/vabstractpattern.h

@@ -118,6 +118,7 @@ public:
 
     QDomElement    CreateGroups();
     QDomElement    CreateGroup(quint32 id, const QString &name, const QMap<quint32, quint32> &groupData);
+    void           SetGroupName(quint32 id, const QString &name);
 
     static const QString TagPattern;
     static const QString TagCalculation;

src/libs/vtools/undocommands/addgroup.cpp

@@ -67,6 +67,12 @@ void AddGroup::undo()
         }
         else
         {
+            if (groups.childNodes().isEmpty())
+            {
+                QDomNode parent = groups.parentNode();
+                parent.removeChild(groups);
+            }
+
             qCDebug(vUndo, "Can't get group by id = %u.", nodeId);
             return;
         }