New role for PartitionModel: SizeRole

src/modules/partition/PartitionModel.cpp

@@ -172,6 +172,8 @@ PartitionModel::data( const QModelIndex& index, int role ) const
             return colorForPartition( partition, index.row() );
         else
             return QVariant();
+    case SizeRole:
+        return ( partition->lastSector() - partition->firstSector() + 1 ) * m_device->logicalSectorSize();
     default:
         return QVariant();
     }

src/modules/partition/PartitionModel.h

@@ -46,6 +46,13 @@ public:
         PartitionModel* m_model;
     };
 
+    enum
+    {
+        // The raw size, as a qlonglong. This is different from the DisplayRole of
+        // SizeColumn, which is a human-readable string.
+        SizeRole = Qt::UserRole + 1
+    };
+
     enum Column
     {
         NameColumn,