private Set<PsiFile> getSelectedScope(final Tree tree) {
TreePath[] paths = tree.getSelectionPaths();
if (paths == null) return EMPTY_FILE_SET;
Set<PsiFile> result = new HashSet<PsiFile>();
for (TreePath path : paths) {
PackageDependenciesNode node = (PackageDependenciesNode) path.getLastPathComponent();
node.fillFiles(result, !mySettings.UI_FLATTEN_PACKAGES);
}
return result;
}
