Ask user to reload polymesh if it is actually a triangle mesh

git-svn-id: http://www.openflipper.org/svnrepo/OpenFlipper/branches/Free@7157 383ad7c9-94d9-4d36-a494-682f7c89f535

OpenFlipper/Core/openFunctions.cc

@@ -54,6 +54,9 @@
 #include "OpenFlipper/widgets/loadWidget/loadWidget.hh"
 #include "OpenFlipper/widgets/addEmptyWidget/addEmptyWidget.hh"
 
+#include <OpenFlipper/common/Types.hh>
+#include <ObjectTypes/PolyMesh/PolyMesh.hh>
+
 #include <time.h>
 
 void Core::resetScenegraph( bool _resetTrackBall  ) {
@@ -275,6 +278,50 @@ void Core::slotCopyObject( int _oldId , int& _newId ) {
 /// Slot for loading a given file
 void Core::slotLoad(QString _filename, DataType _type, int& _id) {
   _id = loadObject(_type,_filename);
+  
+  // Check if it is a polymesh
+  if ( _type == DATA_POLY_MESH ) {
+    
+    PolyMeshObject* poly = 0;
+    PluginFunctions::getObject(_id,poly);
+    
+    if ( poly != 0 ) {
+        PolyMesh& mesh = *poly->mesh();
+        
+        bool isTriangleMesh = true;
+        
+        for ( PolyMesh::FaceIter f_it = mesh.faces_begin(); f_it != mesh.faces_end() ; ++f_it) {
+          
+          // Count number of vertices for the current face
+          uint count = 0;
+          for ( PolyMesh::FaceVertexIter fv_it( mesh,f_it); fv_it; ++fv_it ) 
+            ++count;
+          
+          // Check if it is a triangle. If not, this is really a poly mesh
+          if ( count != 3 ) {
+            isTriangleMesh = false;
+            break;
+          }
+          
+        }
+        
+        // Mesh loaded as polymesh is actually a triangle mesh. Ask the user to reload as triangle mesh or keep it as poly mesh.
+        if ( isTriangleMesh ) {
+          QMessageBox::StandardButton result = QMessageBox::question ( 0, 
+                                                                      tr("TriMesh loaded as PolyMesh"), 
+                                                                      tr("You opened the mesh as a poly mesh but actually its a triangle mesh. \nShould it be opened as a triangle mesh?"), 
+                                                                      (QMessageBox::Yes | QMessageBox::No ), 
+                                                                      QMessageBox::Yes );
+          // User decided to reload as triangle mesh                                                                    
+          if ( result == QMessageBox::Yes ) {
+            slotDeleteObject(_id);
+            _id = loadObject(DATA_TRIANGLE_MESH ,_filename);
+            _type = DATA_TRIANGLE_MESH;
+          }
+        }
+        
+    }
+  }
   if ( _id < 0 )
     _id = -1;
   else