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  • Committer: Bazaar Package Importer
  • Author(s): Daniel Kobras
  • Date: 2002-04-23 17:28:23 UTC
  • Revision ID: james.westby@ubuntu.com-20020423172823-w8yplzr81a759xa3
Tags: upstream-0.5.2
Import upstream version 0.5.2

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undo.h
 
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//=========================================================
 
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//  MusE
 
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//  Linux Music Editor
 
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//  $Id: undo.h,v 1.2 2001/11/20 15:19:32 muse Exp $
 
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//
 
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//  (C) Copyright 1999/2000 Werner Schweer (ws@seh.de)
 
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//=========================================================
 
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#ifndef __UNDO_H__
 
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#define __UNDO_H__
 
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#include <list>
 
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class Track;
 
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class TEvent;
 
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class SigEvent;
 
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class Event;
 
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class Part;
 
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//---------------------------------------------------------
 
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//   UndoOp
 
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//---------------------------------------------------------
 
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struct UndoOp {
 
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      enum UndoType {
 
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            AddTrack, DeleteTrack, ModifyTrack,
 
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            AddPart,  DeletePart,  ModifyPart,
 
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            AddEvent, DeleteEvent, ModifyEvent,
 
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            AddTempo, DeleteTempo,
 
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            AddSig,
 
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            SwapTrack, ModifyController
 
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            };
 
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      UndoType type;
 
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      union xxx {
 
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            struct {
 
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                  int a;
 
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                  int b;
 
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                  int c;
 
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                  } i;
 
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            struct {
 
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                  Track* track;
 
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                  int trackno;
 
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                  } t;
 
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            struct {
 
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                  Part* oPart;
 
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                  Part* nPart;
 
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                  } p;
 
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            struct {
 
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                  Event* oEvent;
 
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                  Event* nEvent;
 
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                  Part* part;
 
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                  } e;
 
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            struct {
 
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                  SigEvent* nSignature;
 
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                  SigEvent* oSignature;
 
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                  } s;
 
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            struct {
 
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                  int channel;
 
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                  int ctrl;
 
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                  int oVal;
 
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                  int nVal;
 
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                  } c;
 
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            } xxx;
 
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      };
 
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class Undo : public std::list<UndoOp> {
 
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      void undoOp(UndoOp::UndoType, int data);
 
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      };
 
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typedef Undo::iterator iUndoOp;
 
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typedef Undo::reverse_iterator riUndoOp;
 
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class UndoList : public std::list<Undo> {
 
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   public:
 
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      };
 
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typedef UndoList::iterator iUndo;
 
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#endif // __UNDO_H__