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diff --git a/src/commands/segment/AudioSegmentResizeFromStartCommand.cpp b/src/commands/segment/AudioSegmentResizeFromStartCommand.cpp
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+++ b/src/commands/segment/AudioSegmentResizeFromStartCommand.cpp
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+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Rosegarden
+    A MIDI and audio sequencer and musical notation editor.
+ 
+    This program is Copyright 2000-2008
+        Guillaume Laurent   <[email protected]>,
+        Chris Cannam        <[email protected]>,
+        Richard Bown        <[email protected]>
+ 
+    The moral rights of Guillaume Laurent, Chris Cannam, and Richard
+    Bown to claim authorship of this work have been asserted.
+ 
+    Other copyrights also apply to some parts of this work.  Please
+    see the AUTHORS file and individual file headers for details.
+ 
+    This program is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License as
+    published by the Free Software Foundation; either version 2 of the
+    License, or (at your option) any later version.  See the file
+    COPYING included with this distribution for more information.
+*/
+
+
+#include "AudioSegmentResizeFromStartCommand.h"
+
+#include <klocale.h>
+#include "base/Composition.h"
+#include "base/RealTime.h"
+#include "base/Segment.h"
+
+
+namespace Rosegarden
+{
+
+AudioSegmentResizeFromStartCommand::AudioSegmentResizeFromStartCommand(Segment *segment,
+        timeT newStartTime) :
+        KNamedCommand(i18n("Resize Segment")),
+        m_segment(segment),
+        m_newSegment(0),
+        m_detached(false),
+        m_oldStartTime(segment->getStartTime()),
+        m_newStartTime(newStartTime)
+{}
+
+AudioSegmentResizeFromStartCommand::~AudioSegmentResizeFromStartCommand()
+{
+    if (!m_detached)
+        delete m_segment;
+    else
+        delete m_newSegment;
+}
+
+void
+AudioSegmentResizeFromStartCommand::execute()
+{
+    Composition *c = m_segment->getComposition();
+
+    if (!m_newSegment) {
+        RealTime oldRT = c->getElapsedRealTime(m_oldStartTime);
+        RealTime newRT = c->getElapsedRealTime(m_newStartTime);
+
+        m_newSegment = new Segment(*m_segment);
+        m_newSegment->setStartTime(m_newStartTime);
+        m_newSegment->setAudioStartTime(m_segment->getAudioStartTime() -
+                                        (oldRT - newRT));
+    }
+
+    c->addSegment(m_newSegment);
+    m_newSegment->setEndMarkerTime(m_segment->getEndMarkerTime());
+    c->detachSegment(m_segment);
+
+    m_detached = false;
+}
+
+void
+AudioSegmentResizeFromStartCommand::unexecute()
+{
+    Composition *c = m_newSegment->getComposition();
+    c->addSegment(m_segment);
+    c->detachSegment(m_newSegment);
+
+    m_detached = true;
+}
+
+}