1 files changed, 37 insertions, 0 deletions
diff --git a/sc/inc/columnset.hxx b/sc/inc/columnset.hxx
new file mode 100644
index 0000000000..2ae8ab0106
--- /dev/null
+++ b/sc/inc/columnset.hxx
@@ -0,0 +1,37 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#pragma once
+
+#include "types.hxx"
+
+#include <unordered_set>
+#include <unordered_map>
+#include <vector>
+
+namespace sc
+{
+/**
+ * Simple container to keep track of sheet - column pair.
+ */
+class ColumnSet
+{
+    typedef std::unordered_set<SCCOL> ColsType;
+    typedef std::unordered_map<SCTAB, ColsType> TabsType;
+    TabsType maTabs;
+
+public:
+    void set(SCTAB nTab, SCCOL nCol);
+    void getColumns(SCTAB nTab, std::vector<SCCOL>& rCols) const;
+    bool hasTab(SCTAB nTab) const;
+    bool empty() const;
+};
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */