1 files changed, 56 insertions, 0 deletions
diff --git a/src/base/SegmentMatrixHelper.cpp b/src/base/SegmentMatrixHelper.cpp
new file mode 100644
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--- /dev/null
+++ b/src/base/SegmentMatrixHelper.cpp
@@ -0,0 +1,56 @@
+// -*- c-basic-offset: 4 -*-
+
+/*
+    Rosegarden
+    A 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 right of the authors to claim authorship of this work
+    has been asserted.
+
+    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 "SegmentMatrixHelper.h"
+#include "BaseProperties.h"
+
+namespace Rosegarden
+{
+
+Segment::iterator SegmentMatrixHelper::insertNote(Event* e)
+{
+    Segment::iterator i = segment().insert(e);
+    segment().normalizeRests(e->getAbsoluteTime(),
+			     e->getAbsoluteTime() + e->getDuration());
+    return i;
+}
+
+bool
+SegmentMatrixHelper::isDrumColliding(Event* e)
+{
+    long pitch = 0;
+    if (!e->get<Int>(BaseProperties::PITCH, pitch))
+        return false;
+
+    timeT evTime = e->getAbsoluteTime();
+
+    Segment::iterator it;
+    for (it = segment().findTime(evTime); it != end(); ++it) {
+        if ((*it) == e) continue;
+        if ((*it)->getAbsoluteTime() != evTime) break;
+        long p = 0;
+        if (!(*it)->get<Int>(BaseProperties::PITCH, p)) continue;
+        if (p == pitch) return true;
+    }
+    return false;
+}
+
+}