ENH: add SendWarning to MsgReporter for use from MVD

Code/Visualization/otbMsgReporter.cxx

@@ -76,6 +76,19 @@ MsgReporter
 {
   this->textArea->insert(msg.c_str());
   this->textArea->show_insert_position();
+  this->Show();
+  Fl::check();
+}
+
+//Send Error
+void
+MsgReporter
+::SendWarning(const std::string & msg)
+{
+  this->textArea->insert("WARNING: ");
+  this->textArea->insert(msg.c_str());
+  this->textArea->show_insert_position();
+  this->Show();
   Fl::check();
 }
 

Code/Visualization/otbMsgReporter.h

@@ -61,6 +61,8 @@ public:
   virtual void SetTitle(const std::string & title);
   /** Send a new message in the edit area */
   virtual void SendMsg(const std::string & msg);
+  /** Send an warning message in the edit area */
+  virtual void SendWarning(const std::string& msg);
   /** Send an error message in the edit area */
   virtual void SendError(const std::string & msg);