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diff --git a/src/gui/editors/segment/segmentcanvas/CompositionItemHelper.cpp b/src/gui/editors/segment/segmentcanvas/CompositionItemHelper.cpp
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+++ b/src/gui/editors/segment/segmentcanvas/CompositionItemHelper.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   <glaurent@telegraph-road.org>,
+        Chris Cannam        <cannam@all-day-breakfast.com>,
+        Richard Bown        <richard.bown@ferventsoftware.com>
+ 
+    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 <cmath>
+
+#include "CompositionItemHelper.h"
+
+#include "base/Segment.h"
+#include "base/SnapGrid.h"
+#include "misc/Debug.h"
+#include "CompositionModel.h"
+#include "CompositionItemImpl.h"
+#include <qcolor.h>
+#include <qpoint.h>
+#include <qrect.h>
+
+namespace Rosegarden
+{
+    
+timeT CompositionItemHelper::getStartTime(const CompositionItem& item, const Rosegarden::SnapGrid& grid)
+{
+    timeT t = 0;
+
+    if (item) {
+    // t = std::max(grid.snapX(item->rect().x()), 0L); - wrong, we can have negative start times,
+        // and if we do this we 'crop' segments when they are moved before the start of the composition
+    t = grid.snapX(item->rect().x());
+
+//         RG_DEBUG << "CompositionItemHelper::getStartTime(): item is repeating : " << item->isRepeating()
+//                  << " - startTime = " << t
+//                  << endl;
+    }
+
+    return t;
+}
+
+timeT CompositionItemHelper::getEndTime(const CompositionItem& item, const Rosegarden::SnapGrid& grid)
+{
+    timeT t = 0;
+
+    if (item) {
+        QRect itemRect = item->rect();
+        
+        t = std::max(grid.snapX(itemRect.x() + itemRect.width()), 0L);
+
+//         RG_DEBUG << "CompositionItemHelper::getEndTime() : rect width = "
+//                  << itemRect.width()
+//                  << " - item is repeating : " << item->isRepeating()
+//                  << " - endTime = " << t
+//                  << endl;
+
+    }
+
+    return t;
+}
+
+void CompositionItemHelper::setStartTime(CompositionItem& item, timeT time,
+                                         const Rosegarden::SnapGrid& grid)
+{
+    if (item) {
+        int x = int(nearbyint(grid.getRulerScale()->getXForTime(time)));
+
+        RG_DEBUG << "CompositionItemHelper::setStartTime() time = " << time
+                 << " -> x = " << x << endl;
+        
+        int curX = item->rect().x();
+        item->setX(x);
+        if (item->isRepeating()) {
+            int deltaX = curX - x;
+            CompositionRect& sr = dynamic_cast<CompositionItemImpl*>((_CompositionItem*)item)->getCompRect();
+            int curW = sr.getBaseWidth();
+            sr.setBaseWidth(curW + deltaX);
+        }
+        
+    }
+    
+}
+
+void CompositionItemHelper::setEndTime(CompositionItem& item, timeT time,
+                                       const Rosegarden::SnapGrid& grid)
+{
+    if (item) {
+        int x = int(nearbyint(grid.getRulerScale()->getXForTime(time)));
+        QRect r = item->rect();
+        QPoint topRight = r.topRight();
+        topRight.setX(x);
+        r.setTopRight(topRight);
+        item->setWidth(r.width());
+
+        if (item->isRepeating()) {
+            CompositionRect& sr = dynamic_cast<CompositionItemImpl*>((_CompositionItem*)item)->getCompRect();
+            sr.setBaseWidth(r.width());
+        }
+    }
+}
+
+int CompositionItemHelper::getTrackPos(const CompositionItem& item, const Rosegarden::SnapGrid& grid)
+{
+    return grid.getYBin(item->rect().y());
+}
+
+Rosegarden::Segment* CompositionItemHelper::getSegment(CompositionItem item)
+{
+    return (dynamic_cast<CompositionItemImpl*>((_CompositionItem*)item))->getSegment();
+}
+
+CompositionItem CompositionItemHelper::makeCompositionItem(Rosegarden::Segment* segment)
+{
+    return CompositionItem(new CompositionItemImpl(*segment, QRect()));
+}
+
+CompositionItem CompositionItemHelper::findSiblingCompositionItem(const CompositionModel::itemcontainer& items,
+                                                                  const CompositionItem& referenceItem)
+{
+    CompositionModel::itemcontainer::const_iterator it;
+    Rosegarden::Segment* currentSegment = CompositionItemHelper::getSegment(referenceItem);
+
+    for (it = items.begin(); it != items.end(); it++) {
+        CompositionItem item = *it;
+        Rosegarden::Segment* segment = CompositionItemHelper::getSegment(item);
+        if (segment == currentSegment) {
+            return item;
+        }
+    }
+
+    return referenceItem;
+}
+    
+}