Add swapDevice to DeviceModel.

src/modules/partition/core/DeviceModel.cpp

@@ -90,6 +90,7 @@ DeviceModel::data( const QModelIndex& index, int role ) const
     }
 }
 
+
 Device*
 DeviceModel::deviceForIndex( const QModelIndex& index ) const
 {
@@ -98,3 +99,20 @@ DeviceModel::deviceForIndex( const QModelIndex& index ) const
         return nullptr;
     return m_devices.at( row );
 }
+
+
+void
+DeviceModel::swapDevice( Device* oldDevice, Device* newDevice )
+{
+    Q_ASSERT( oldDevice );
+    Q_ASSERT( newDevice );
+    Q_ASSERT( oldDevice->deviceNode() == newDevice->deviceNode() );
+
+    int indexOfOldDevice = m_devices.indexOf( oldDevice );
+    if ( indexOfOldDevice < 0 )
+        return;
+
+    m_devices[ indexOfOldDevice ] = newDevice;
+
+    emit dataChanged( index( indexOfOldDevice ), index( indexOfOldDevice ) );
+}

src/modules/partition/core/DeviceModel.h

@@ -46,6 +46,8 @@ public:
 
     Device* deviceForIndex( const QModelIndex& index ) const;
 
+    void swapDevice( Device* oldDevice, Device* newDevice );
+
 private:
     QList< Device* > m_devices;
 };