public CompositionsEditorViewModel(
IViewModelNavigator navigator,
IDialogService dialogService,
CheckableCompositionViewModel compositionViewModel
)
{
_navigator = navigator;
_dialogService = dialogService;
_originalObject = compositionViewModel;
Composition = _originalObject.Copy();
_canRemoveBackground = Composition.Background != null;
_canRemoveOverlay = Composition.Overlay != null;
}
