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diff --git a/offapi/com/sun/star/accessibility/XAccessibleMultiLineText.idl b/offapi/com/sun/star/accessibility/XAccessibleMultiLineText.idl
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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/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef __com_sun_star_accessibility_XAccessibleMultiLineText_idl__
+#define __com_sun_star_accessibility_XAccessibleMultiLineText_idl__
+
+#include <com/sun/star/accessibility/XAccessibleText.idl>
+#include <com/sun/star/lang/IndexOutOfBoundsException.idl>
+#include <com/sun/star/beans/PropertyValue.idl>
+
+module com { module sun { module star { module accessibility {
+
+/** Implement this interface to give provide a mapping between text index
+    and line numbers.
+
+    <p>This interface is typically used in conjunction with the
+    XAccessibleText interface and extents it with a notion
+    of line numbers</p>
+
+    @since OOo 3.0
+*/
+
+/// not yet published
+interface XAccessibleMultiLineText
+    : ::com::sun::star::accessibility::XAccessibleText
+{
+    /** Returns the line number at the specified index.
+
+        <p>For a text object that is spread over multiple lines, this method
+        provides a mapping from a text index to the corresponding line number.
+        </p>
+
+        @param nIndex
+            Index for which the line number should be returned.
+            The valid range is 0..length.
+
+        @return
+            Returns the line number of the specified text index.
+
+        @throws ::com::sun::star::lang::IndexOutOfBoundsException
+            if the index is invalid.
+    */
+    long getLineNumberAtIndex([in] long nIndex)
+        raises (::com::sun::star::lang::IndexOutOfBoundsException);
+
+    /** Returns the text of the specified line.
+
+        <p>Returns the substring of text that makes up the specified line
+        number.</p>
+
+        <p>The number of lines can be obtained by calling
+        XAccessibleMultiLineText::getLineNumberAtIndex()
+        with the index of the last character. In a loop, the last line
+        has been reached when TextSegment::SegmentEnd
+        of the returned value is equal to the index of the last
+        character of the text.</p>
+
+        @param nLineNo
+            The number of the line to return the substring from.
+            The valid range is 0..getLineNumberAtIndex(getCharacterCount()).
+
+        @return
+            Returns the requested text portion.  This portion may be empty
+            or invalid when no appropriate text portion is found.
+
+        @throws ::com::sun::star::lang::IndexOutOfBoundsException
+            if the line number is invalid
+    */
+
+    TextSegment getTextAtLineNumber([in] long nLineNo)
+        raises (::com::sun::star::lang::IndexOutOfBoundsException);
+
+    /** Returns the text of the line in which the caret is located.
+
+        <p>The substring returned will most of the time be identical to
+        calling XAccessibleText::getTextAtIndex() with
+        the index returned by XAccessibleText::getCaretPosition()
+        and type AccessibleTextType::LINE beside the
+        following special case:</p>
+
+        <p>Some text implementations place the caret at the end of the current
+        line when the <b>End</b> key gets pressed. Since the index of this position
+        is identical to the one of the first character of the following line,
+        XAccessibleMultiLineText::getLineNumberAtIndex() will
+        return the line following the current one in this case.</p>
+
+        @return
+            Returns the requested text portion. This portion may be empty
+            or invalid if the paragraph object does not have a valid caret
+            position.
+    */
+
+    TextSegment getTextAtLineWithCaret();
+
+    /** Returns the number of the line in which the caret is located.
+
+        <p>The line number returned will most of the time be identical to
+        calling XAccessibleMultiLineText::getLineNumberAtIndex()
+        with the index returned by XAccessibleText::getCaretPosition()
+        beside the following special case:</p>
+
+        <p>Some text implementations place the caret at the end of the current
+        line when the <b>End</b> key gets pressed. Since the index of this position
+        is identical to the one of the first character of the following line,
+        XAccessibleMultiLineText::getLineNumberAtIndex() will
+        return the line following the current one in this case.</p>
+
+        @return
+            Returns the index of the line in which the caret is located or -1
+            if the paragraph does not have a valid caret position.
+    */
+
+    long getNumberOfLineWithCaret();
+};
+
+}; }; }; };
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */