public EditChangeSelectionCommand(Layer layer, TileSelection currentTileSelection, ChangeSelectionType changeSelectionType) { m_layer = layer; m_currentTileSelection = currentTileSelection; m_oldTileSelection = new TileSelection(currentTileSelection); m_changeSelectionType = changeSelectionType; switch (m_changeSelectionType) { case ChangeSelectionType.SelectAll: m_description = "Select all tiles"; break; case ChangeSelectionType.Clear: m_description = "Clear tile selection"; break; case ChangeSelectionType.Invert: m_description = "Invert tile selection"; break; } }