1 files changed, 58 insertions, 0 deletions
diff --git a/sc/inc/documentstreamaccess.hxx b/sc/inc/documentstreamaccess.hxx
new file mode 100644
index 000000000..d34ea15ac
--- /dev/null
+++ b/sc/inc/documentstreamaccess.hxx
@@ -0,0 +1,58 @@
+/* -*- 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: */