@Override
public void undo() {
final List<ColumnConstraints> constraintsList = columnContraintsMeta.getValue(gridPaneObject);
assert columnIndex < constraintsList.size();
for (int i = 0; i < insertCount; i++) {
constraintsList.remove(columnIndex);
}
columnContraintsMeta.setValue(gridPaneObject, constraintsList);
}
@Override
public void redo() {
final List<ColumnConstraints> constraintsList = columnContraintsMeta.getValue(gridPaneObject);
final ColumnConstraints template;
if (columnIndex >= 1) {
template = constraintsList.get(columnIndex - 1);
} else {
template = null;
}
for (int i = 0; i < insertCount; i++) {
constraintsList.add(columnIndex, makeColumnConstraints(template));
}
columnContraintsMeta.setValue(gridPaneObject, constraintsList);
}
