ENH: Added generic SRT global functions.

Code/Common/Core/mvdAbstractLayerModel.cxx

@@ -38,6 +38,8 @@
 
 //
 // Monteverdi includes (sorted by alphabetic order)
+#include "mvdTypes.h"
+
 
 namespace mvd
 {
@@ -62,35 +64,32 @@ char const * const STR_UNKNOWN = QT_TRANSLATE_NOOP( "mvd::AbstractLayerModel", "
 
 /*****************************************************************************/
 /* STATIC IMPLEMENTATION SECTION                                             */
-
-
 /*****************************************************************************/
-/* CLASS IMPLEMENTATION SECTION                                              */
-
-/*******************************************************************************/
-AbstractLayerModel
-::AbstractLayerModel( QObject* parent ) :
-  AbstractModel( parent ),
-  VisibleInterface()
+SpatialReferenceType
+GetSpatialReferenceType( const std::string & filename )
 {
-}
+  DefaultImageFileReaderType::Pointer reader( DefaultImageFileReaderType::New() );
+  assert( !reader.IsNull() );
 
-/*******************************************************************************/
-AbstractLayerModel
-::~AbstractLayerModel()
-{
+  reader->SetFileName( filename );
+  reader->UpdateOutputInformation();
+
+  DefaultImageType * image = reader->GetOutput();
+  assert( image!=NULL );
+
+  return GetSpatialReferenceType(
+    image->GetProjectionRef(),
+    image->GetImageKeywordlist().GetSize()>0
+  );
 }
 
-/*******************************************************************************/
-AbstractLayerModel::SpatialReferenceType
-AbstractLayerModel
-::GetSpatialReferenceType() const
+/*****************************************************************************/
+SpatialReferenceType
+GetSpatialReferenceType( const std::string & wkt, bool hasKwl )
 {
-  std::string wkt( GetWkt() );
-
   if( wkt.empty() )
     return
-      HasKwl()
+      hasKwl
       ? SRT_SENSOR
       : SRT_UNKNOWN;
 
@@ -109,6 +108,31 @@ AbstractLayerModel
   return SRT_UNKNOWN;
 }
 
+/*****************************************************************************/
+/* CLASS IMPLEMENTATION SECTION                                              */
+
+/*******************************************************************************/
+AbstractLayerModel
+::AbstractLayerModel( QObject* parent ) :
+  AbstractModel( parent ),
+  VisibleInterface()
+{
+}
+
+/*******************************************************************************/
+AbstractLayerModel
+::~AbstractLayerModel()
+{
+}
+
+/*******************************************************************************/
+SpatialReferenceType
+AbstractLayerModel
+::GetSpatialReferenceType() const
+{
+  return mvd::GetSpatialReferenceType( GetWkt(), HasKwl() );
+}
+
 /*******************************************************************************/
 std::string
 AbstractLayerModel

Code/Common/Core/mvdAbstractLayerModel.h

@@ -66,6 +66,30 @@ namespace mvd
 // Internal classes pre-declaration.
 
 
+//
+// Global types.
+
+/**
+ */
+enum SpatialReferenceType
+{
+  SRT_UNKNOWN =0,
+  SRT_CARTO,
+  SRT_GEO,
+  SRT_SENSOR,
+};
+
+//
+// Global functions.
+
+/**
+ */
+SpatialReferenceType GetSpatialReferenceType( const std::string & filename );
+
+/**
+ */
+SpatialReferenceType GetSpatialReferenceType( const std::string & wkt, bool hasKwl );
+
 /*****************************************************************************/
 /* CLASS DEFINITION SECTION                                                  */
 
@@ -89,14 +113,6 @@ class Monteverdi2_EXPORT AbstractLayerModel :
 // Public methods.
 public:
 
-  enum SpatialReferenceType
-  {
-    SRT_UNKNOWN,
-    SRT_SENSOR,
-    SRT_CARTO,
-    SRT_GEO,
-  };
-
   /** \brief Destructor. */
   virtual ~AbstractLayerModel();