0029451: Information Message Alert to debug an algorithm or object functionality

- Added possibility to send stream information and transient object into Message_Messenger. Message_Printer will process it if needed.
- Add Message_PrinterToReport to send messenger information into Message_Report.
- Extended Message_Report to collect hierarchical alerts, to be able to collect some metrics during alerts processing.
- Added Message_AlertExtended to prepare hierarchical alerts with custom attributes. One attribute for one alert.
- Added Message_CompositeAlerts class to handle a container of alerts.
- Added Message_Level to start a new hierarchical level by creating an instance, stop by destricting.
- Added Message_Attribute and inheritors to store custom information about alert like object, stream, shape, some metrics.
- Implement Message_AttributeAlert to collect start/stop information about active metrics of Message_Report. This kind of attribute is created if at least one metric is active in the report.
- Add Message_MetricType enumeration with possible kinds of metrics in report.
- Implement DumpJson for Message_Report to store all collected alerts into stream.
- Added draw commands for Message_Report, Message_Messenger.

src/Message/Message.hxx

@@ -18,6 +18,14 @@
 #define _Message_HeaderFile
 
 #include <Message_Messenger.hxx>
+#include <Message_Gravity.hxx>
+#include <Message_MetricType.hxx>
+#include <NCollection_Vector.hxx>
+#include <OSD_MemInfo.hxx>
+
+#include <TCollection_AsciiString.hxx>
+
+class Message_Report;
 
 //! Defines
 //! - tools to work with messages
@@ -76,6 +84,45 @@ public:
   //! 3. (0,  0,  4.5   ) returns "4.50s"
   Standard_EXPORT static TCollection_AsciiString FillTime (const Standard_Integer Hour, const Standard_Integer Minute, const Standard_Real Second);
 
+public:
+  //! returns the only one instance of Report
+  //! When theToCreate is true - automatically creates message report when not exist.
+  Standard_EXPORT static const Handle(Message_Report)& DefaultReport (const Standard_Boolean theToCreate = Standard_False);
+
+  //! Determines the metric from the given string identifier.
+  //! @param theString string identifier
+  //! @param theType detected type of metric
+  //! @return TRUE if string identifier is known
+  Standard_EXPORT static Standard_Boolean MetricFromString (const Standard_CString theString,
+                                                            Message_MetricType& theType);
+
+  //! Returns the string name for a given metric type.
+  //! @param theType metric type
+  //! @return string identifier from the list of Message_MetricType
+  Standard_EXPORT static Standard_CString MetricToString (const Message_MetricType theType);
+
+  //! Returns the metric type from the given string identifier.
+  //! @param theString string identifier
+  //! @return metric type or Message_MetricType_None if string identifier is invalid
+  static Message_MetricType MetricFromString (const Standard_CString theString)
+  {
+    Message_MetricType aMetric = Message_MetricType_None;
+    MetricFromString (theString, aMetric);
+    return aMetric;
+  }
+
+  //! Converts message metric to OSD memory info type.
+  //! @param theMetric [in] message metric
+  //! @param theMemInfo [out] filled memory info type
+  //! @return true if converted
+  static Standard_EXPORT Standard_Boolean ToOSDMetric (const Message_MetricType theMetric, OSD_MemInfo::Counter& theMemInfo);
+
+  //! Converts OSD memory info type to message metric.
+  //! @param theMemInfo [int] memory info type
+  //! @param theMetric [out] filled message metric
+  //! @return true if converted
+  static Standard_EXPORT Standard_Boolean ToMessageMetric (const OSD_MemInfo::Counter theMemInfo, Message_MetricType& theMetric);
+
 };
 
 #endif // _Message_HeaderFile