void FileBrowser::addRootFolder(generic_string rootFolderPath)
{
	// make sure there's no '\' at the end
	if (rootFolderPath[rootFolderPath.length() - 1] == '\\')
	{
		rootFolderPath = rootFolderPath.substr(0, rootFolderPath.length() - 1);
	}

	size_t nbFolderUpdaters = _folderUpdaters.size();
	for (size_t i = 0; i < nbFolderUpdaters; ++i)
	{
		if (_folderUpdaters[i]->_rootFolder._rootPath == rootFolderPath)
			return;
		else
		{
			size_t pos = rootFolderPath.find(_folderUpdaters[i]->_rootFolder._rootPath);
			if (pos == 0)
			{
				//do nothing, go down to select the dir
				generic_string rootPath = _folderUpdaters[i]->_rootFolder._rootPath;
				generic_string pathSuffix = rootFolderPath.substr(rootPath.size() + 1, rootFolderPath.size() - rootPath.size());
				vector<generic_string> linarPathArray = split(pathSuffix, '\\');
				
				HTREEITEM foundItem = findInTree(rootPath, nullptr, linarPathArray);
				if (foundItem)
					_treeView.selectItem(foundItem);
				return;
			}
			
			pos = _folderUpdaters[i]->_rootFolder._rootPath.find(rootFolderPath);
			if (pos == 0)
			{
				::MessageBox(_hParent, TEXT("A sub-folder of the folder you want to open exists.\rPlease remove it from the panel before you add this one."), rootFolderPath.c_str(), MB_OK);
				return;
			}
		}
	}

	std::vector<generic_string> patterns2Match;
 	patterns2Match.push_back(TEXT("*.*"));

	TCHAR *label = ::PathFindFileName(rootFolderPath.c_str());
	TCHAR rootLabel[MAX_PATH];
	lstrcpy(rootLabel, label);
	size_t len = lstrlen(rootLabel);
	if (rootLabel[len - 1] == '\\')
		rootLabel[len - 1] = '\0';

	FolderInfo directoryStructure(rootLabel, nullptr);
	getDirectoryStructure(rootFolderPath.c_str(), patterns2Match, directoryStructure, true, false);
	HTREEITEM hRootItem = createFolderItemsFromDirStruct(nullptr, directoryStructure);
	_treeView.expand(hRootItem);
	_folderUpdaters.push_back(new FolderUpdater(directoryStructure, this));
	_folderUpdaters[_folderUpdaters.size() - 1]->startWatcher();
}
void FileBrowser::addRootFolder(generic_string rootFolderPath)
{
	// make sure there's no '\' at the end
	if (rootFolderPath[rootFolderPath.length() - 1] == '\\')
	{
		rootFolderPath = rootFolderPath.substr(0, rootFolderPath.length() - 1);
	}

	size_t nbFolderUpdaters = _folderUpdaters.size();
	for (size_t i = 0; i < nbFolderUpdaters; ++i)
	{
		if (_folderUpdaters[i]->_rootFolder._rootPath == rootFolderPath)
			return;
		else
		{
			size_t pos = rootFolderPath.find(_folderUpdaters[i]->_rootFolder._rootPath);
			if (pos == 0)
			{
				printStr(TEXT("do nothing, go down to select the dir."));
				
				return;
			}
			
			pos = _folderUpdaters[i]->_rootFolder._rootPath.find(rootFolderPath);
			if (pos == 0)
			{
				printStr(TEXT("remove old, add this one"));
				return;
			}
		}
	}

	std::vector<generic_string> patterns2Match;
 	patterns2Match.push_back(TEXT("*.*"));

	TCHAR *label = ::PathFindFileName(rootFolderPath.c_str());
	TCHAR rootLabel[MAX_PATH];
	lstrcpy(rootLabel, label);
	size_t len = lstrlen(rootLabel);
	if (rootLabel[len - 1] == '\\')
		rootLabel[len - 1] = '\0';

	FolderInfo directoryStructure(rootLabel, nullptr);
	getDirectoryStructure(rootFolderPath.c_str(), patterns2Match, directoryStructure, true, false);
	HTREEITEM hRootItem = createFolderItemsFromDirStruct(nullptr, directoryStructure);
	_treeView.expand(hRootItem);
	_folderUpdaters.push_back(new FolderUpdater(directoryStructure, this));
	_folderUpdaters[_folderUpdaters.size() - 1]->startWatcher();
}