Add PartitionPtrRole to PartitionModel.

src/modules/partition/core/PartitionModel.cpp

@@ -176,6 +176,9 @@ PartitionModel::data( const QModelIndex& index, int role ) const
     case FileSystemTypeRole:
         return partition->fileSystem().type();
 
+    case PartitionPtrRole:
+        return qVariantFromValue( (void*)partition );
+
     // Osprober roles:
     case OsproberNameRole:
         foreach ( const OsproberEntry& osproberEntry, m_osproberEntries )

src/modules/partition/core/PartitionModel.h

@@ -72,6 +72,7 @@ public:
         IsPartitionNewRole,
         FileSystemLabelRole,
         FileSystemTypeRole,
+        PartitionPtrRole,   // passed as void*, use sparingly
         OsproberNameRole,
         OsproberPathRole,
         OsproberCanBeResizedRole,