Add light-weight message class. Refs #6202

Code/Mantid/MantidQt/API/inc/MantidQtAPI/Message.h

@@ -0,0 +1,54 @@
+#ifndef MESSAGE_H_
+#define MESSAGE_H_
+
+//----------------------------------
+// Includes
+//----------------------------------
+#include <QObject>
+#include <QString>
+
+#include "MantidKernel/ClassMacros.h"
+#include "MantidKernel/Logger.h" // So we can match the Logger priority
+
+//----------------------------------------------------------
+// Forward declarations
+//----------------------------------------------------------
+
+namespace MantidQt
+{
+  namespace API
+  {
+    /** @class Message
+     * Provides a simple binding of a text message with a priority
+     */
+    class Message : public QObject
+    {
+      // No Q_Object macro by design
+
+    public:
+      /// Priority matches Mantid Logger priority
+      typedef Mantid::Kernel::Logger::Priority Priority;
+
+      /// Construct a message from a string with a given priority (default=notice)
+      Message(const QString & text, Priority priority=Priority::PRIO_NOTICE)
+        : m_text(text), m_priority(priority)
+      {}
+
+    public:
+
+      /// @returns The message text
+      inline QString text() const {return m_text;}
+      /// @returns The message priority
+      inline Priority priority() const {return m_priority;}
+
+    private:
+      DISABLE_DEFAULT_CONSTRUCT(Message);
+
+      QString m_text;
+      Priority m_priority;
+    };
+
+  }
+}
+
+#endif //MESSAGE_H_

Code/Mantid/MantidQt/API/inc/MantidQtAPI/MessageDisplay.h

@@ -21,6 +21,11 @@ namespace MantidQt
 {
   namespace API
   {
+    //----------------------------------------------------------
+    // Forward declarations
+    //----------------------------------------------------------
+    class Message;
+
     /** @class MessageDisplay
      * Provides a widget for display messages in a text box
      * It deals with Message objects which in turn hide whether
@@ -48,9 +53,9 @@ namespace MantidQt
 
     public slots:
       /// Write a message after the current contents
-      void append(const QString & msg);
+      void append(const Message & msg);
       /// Replace the display text with the given contents
-      void replace(const QString & msg);
+      void replace(const Message & msg);
       /// Clear all of the text
       void clear();
 

Code/Mantid/MantidQt/API/src/MessageDisplay.cpp

@@ -2,6 +2,7 @@
 // Includes
 //-------------------------------------------
 #include "MantidQtAPI/MessageDisplay.h"
+#include "MantidQtAPI/Message.h"
 
 #include "MantidKernel/Logger.h"
 
@@ -68,17 +69,17 @@ namespace MantidQt
      * @param msg A message that is echoed to the display after the
      * current text
      */
-    void MessageDisplay::append(const QString & msg)
+    void MessageDisplay::append(const Message & msg)
     {
-      m_textDisplay->append(msg);
+      m_textDisplay->append(msg.text());
     }
 
     /**
      * @param msg Replace the curren contents with this message
      */
-    void MessageDisplay::replace(const QString & msg)
+    void MessageDisplay::replace(const Message & msg)
     {
-      m_textDisplay->setText(msg);
+      m_textDisplay->setText(msg.text());
     }
 
     /**