1 files changed, 62 insertions, 0 deletions
diff --git a/sc/inc/documentstreamaccess.hxx b/sc/inc/documentstreamaccess.hxx
new file mode 100644
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+++ b/sc/inc/documentstreamaccess.hxx
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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/.
+ */
+
+#ifndef INCLUDED_SC_INC_DOCUMENTSTREAMACCESS_HXX
+#define INCLUDED_SC_INC_DOCUMENTSTREAMACCESS_HXX
+
+#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 );
+};
+
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */