void ResourceEditorPlugin::removePrefixContextMenu()
{
    ResourceFolderNode *rfn = static_cast<ResourceFolderNode *>(ProjectTree::currentNode());
    if (QMessageBox::question(Core::ICore::mainWindow(),
                              tr("Remove Prefix"),
                              tr("Remove prefix %1 and all its files?").arg(rfn->displayName()))
            == QMessageBox::Yes) {
        ResourceTopLevelNode *rn = rfn->resourceNode();
        rn->removePrefix(rfn->prefix(), rfn->lang());
    }
}