Method moveSelectionUp

src/main/java/matcher/gui/GuiUtil.java:27–42

(ListView<T> list)

	}

	public static <T> void moveSelectionUp(ListView<T> list) {
		MultipleSelectionModel<T> selection = list.getSelectionModel();
		List<Integer> selected = new ArrayList<>(selection.getSelectedIndices());

		list.getSelectionModel().clearSelection();

		for (int idx : selected) {
			if (idx > 0 && !selection.isSelected(idx - 1)) {
				T e = list.getItems().remove(idx);
				list.getItems().add(idx - 1, e);
				selection.select(idx - 1);
			} else {
				selection.select(idx);
			}
		}
	}

	public static <T> void moveSelectionDown(ListView<T> list) {
		MultipleSelectionModel<T> selection = list.getSelectionModel();