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+/* -*- 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 <rtl/ustring.hxx>
+#include <memory>
+
+class ScDocument;
+class ScAddress;
+class ScRange;
+
+namespace sc
+{
+struct DocumentStreamAccessImpl;
+
+/**
+ * Provides methods to allow direct shifting of document content without
+ * broadcasting or shifting of broadcaster positions.
+ */
+class DocumentStreamAccess
+{
+ std::unique_ptr<DocumentStreamAccessImpl> mpImpl;
+
+public:
+ DocumentStreamAccess(ScDocument& rDoc);
+ ~DocumentStreamAccess();
+
+ void setNumericCell(const ScAddress& rPos, double fVal);
+ void setStringCell(const ScAddress& rPos, const OUString& rStr);
+
+ /**
+ * Clear its internal state, and more importantly all the block position
+ * hints currently held.
+ */
+ void reset();
+
+ /**
+ * Pop the top row inside specified range, shift all the other rows up by
+ * one, then set the bottom row empty.
+ */
+ void shiftRangeUp(const ScRange& rRange);
+
+ /**
+ * Top the bottom row inside specified range, shift all the other rows
+ * above downward by one by inserting an empty row at the top.
+ */
+ void shiftRangeDown(const ScRange& rRange);
+};
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */