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diff --git a/muse/muse/midiedit/trackpattern.h b/muse/muse/midiedit/trackpattern.h
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+++ b/muse/muse/midiedit/trackpattern.h
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+//=================================================================
+//  trackpattern.h
+//  TrackPattern class for miditracker, QDock, QTree, Part, matrix
+//    miditracker.h
+//  (C) Copyright 2006 Nil Geisweiller (a_lin@user.sourceforge.net)
+//=================================================================
+
+#ifndef __TRACKERPATTERN_H__
+#define __TRACKERPATTERN_H__
+
+#include <vector>
+#include "miditrack.h"
+
+//----------------------------------------------------------
+// EventPat
+//  has to be derived, can be note or control
+//----------------------------------------------------------
+class EventPat {
+ private:
+  bool _isReadable; //true iff the time of the event is the exact row time
+ public:
+  EventPat(bool);
+  EventPat(); //_isReadable is true at the initialization
+  ~EventPat();
+
+  void setReadable(bool);
+  bool getReadable();
+};
+
+//----------------------------------------------------------
+// VoicePat
+//----------------------------------------------------------
+class VoicePat : public EventPat {
+  private:
+  int _noteNum; //absolute note number including octave
+  int _velocity; //if velocity is 0 note is off
+ public:
+  VoicePat(int noteNum, int velocity); // _isReadable is initialized true
+  VoicePat(); // _isReadable is initialized false
+  ~VoicePat();
+
+  void setNoteNum(int n);
+  int getNoteNum();
+  void setVelocity(int n);
+  int getVelocity();
+  QString str(); //return the string to display on the entry of the pattern
+};
+
+//----------------------------------------------------------
+// CtrlPat
+//----------------------------------------------------------
+class CtrlPat : public EventPat {
+ private:
+  int _ctrlNum;
+  int _value; //if velocity is 0 note is off
+ public:
+  CtrlPat(int ctrlNum, int value); // _isReadable is initialized true
+  CtrlPat(); // _isReadable is initialized false
+  ~CtrlPat();
+
+  void setCtrlNum(int n);
+  int getCtrlNum();
+  void setValue(int n);
+  int getValue();
+  QString str(); //return the string to display on the entry of the pattern
+};
+
+//----------------------------------------------------------
+// TrackRowPat
+//----------------------------------------------------------
+class TrackRowPat {
+ private:
+   std::vector<EventPat> _events; //one event for each voice/ctrl of a track
+ public:
+  TrackRowPat();
+  ~TrackRowPat();
+
+  //TODO methods
+};
+
+
+//------------------------------------------------------
+// TrackPattern
+//------------------------------------------------------
+class TrackPattern {
+ private:
+  QDockWidget* _dock;
+  QTreeWidget* _tree;
+  PartList* _partList; //partList concerned by a track
+  MidiTrack* _track;
+  TrackRowPat* _trackRow;
+ public:
+  TrackPattern();
+  ~TrackPattern();
+
+  //TODO methods
+};
+
+#endif