X-Git-Url: http://git.salome-platform.org/gitweb/?a=blobdiff_plain;f=src%2FConfig%2FConfig_WidgetAPI.cpp;h=e8dcbf4be98df31111a8965313a46475d6ffccff;hb=982481c856def9c064e5f2bb65de11a5b254da6e;hp=1249f9ab817ecd59e05b037d57a0390ad19caa40;hpb=2734393c7c19899fca7e7c36577b31317887a9c9;p=modules%2Fshaper.git

diff --git a/src/Config/Config_WidgetAPI.cpp b/src/Config/Config_WidgetAPI.cpp
index 1249f9ab8..e8dcbf4be 100644
--- a/src/Config/Config_WidgetAPI.cpp
+++ b/src/Config/Config_WidgetAPI.cpp
@@ -46,11 +46,18 @@ bool Config_WidgetAPI::toNextWidget()
 bool Config_WidgetAPI::toChildWidget()
 {
   if (myCurrentNode && hasChild(myCurrentNode)) {
-    myCurrentNode = myCurrentNode->children;
-    while (myCurrentNode && !isElementNode(myCurrentNode)) {
-      myCurrentNode = myCurrentNode->next;
+    xmlNodePtr aChildNode = myCurrentNode->children;
+    // it is possible that among child nodes, there is no an element node, so
+    // we should not change the current node until not-zero node is found
+    // otherwise, it may happens that the current node is null and the node tree information
+    // is lost
+    while (aChildNode && !isElementNode(aChildNode)) {
+      aChildNode = aChildNode->next;
+    }
+    if (aChildNode != NULL) {
+      myCurrentNode = aChildNode;
+      return true;
     }
-    return myCurrentNode != NULL;
   }
   return false;
 }
@@ -74,7 +81,7 @@ std::string Config_WidgetAPI::widgetType() const
 
 bool Config_WidgetAPI::isGroupBoxWidget() const
 {
-  return isNode(myCurrentNode, WDG_GROUP, WDG_CHECK_GROUP,
+  return isNode(myCurrentNode, WDG_GROUP, WDG_OPTIONALBOX,
                 NULL);
 }