Method FileDialog

ImFileDialog.cpp:351–440

	}

	FileDialog::FileDialog() {
		m_isOpen = false;
		m_type = 0;
		m_calledOpenPopup = false;
		m_sortColumn = 0;
		m_sortDirection = ImGuiSortDirection_Ascending;
		m_filterSelection = 0;
		m_inputTextbox[0] = 0;
		m_pathBuffer[0] = 0;
		m_searchBuffer[0] = 0;
		m_newEntryBuffer[0] = 0;
		m_selectedFileItem = -1;
		m_zoom = 1.0f;

		m_previewLoader = nullptr;
		m_previewLoaderRunning = false;

		m_setDirectory(std::filesystem::current_path(), false);

		// favorites are available on every OS
		FileTreeNode* quickAccess = new FileTreeNode("Quick Access");
		quickAccess->Read = true;
		m_treeCache.push_back(quickAccess);

#ifdef _WIN32
		wchar_t username[UNLEN + 1] = { 0 };
		DWORD username_len = UNLEN + 1;
		GetUserNameW(username, &username_len);

		std::wstring userPath = L"C:\\Users\\" + std::wstring(username) + L"\\";

		// Quick Access / Bookmarks
		quickAccess->Children.push_back(new FileTreeNode(userPath + L"Desktop"));
		quickAccess->Children.push_back(new FileTreeNode(userPath + L"Documents"));
		quickAccess->Children.push_back(new FileTreeNode(userPath + L"Downloads"));
		quickAccess->Children.push_back(new FileTreeNode(userPath + L"Pictures"));

		// OneDrive
		FileTreeNode* oneDrive = new FileTreeNode(userPath + L"OneDrive");
		m_treeCache.push_back(oneDrive);

		// This PC
		FileTreeNode* thisPC = new FileTreeNode("This PC");
		thisPC->Read = true;
		if (std::filesystem::exists(userPath + L"3D Objects"))
			thisPC->Children.push_back(new FileTreeNode(userPath + L"3D Objects"));
		thisPC->Children.push_back(new FileTreeNode(userPath + L"Desktop"));
		thisPC->Children.push_back(new FileTreeNode(userPath + L"Documents"));
		thisPC->Children.push_back(new FileTreeNode(userPath + L"Downloads"));
		thisPC->Children.push_back(new FileTreeNode(userPath + L"Music"));
		thisPC->Children.push_back(new FileTreeNode(userPath + L"Pictures"));
		thisPC->Children.push_back(new FileTreeNode(userPath + L"Videos"));
		DWORD d = GetLogicalDrives();
		for (int i = 0; i < 26; i++)
			if (d & (1 << i))
				thisPC->Children.push_back(new FileTreeNode(std::string(1, 'A' + i) + ":"));
		m_treeCache.push_back(thisPC);
#else