1 files changed, 129 insertions, 0 deletions
diff --git a/muse_qt4_evolution/al/pos.h b/muse_qt4_evolution/al/pos.h
new file mode 100644
index 00000000..6226cfef
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+++ b/muse_qt4_evolution/al/pos.h
@@ -0,0 +1,129 @@
+//=============================================================================
+//  AL
+//  Audio Utility Library
+//  $Id:$
+//
+//  Copyright (C) 2002-2006 by Werner Schweer and others
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License version 2.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, write to the Free Software
+//  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//=============================================================================
+
+#ifndef __POS_H__
+#define __POS_H__
+
+#include "sig.h"
+
+namespace AL {
+
+class Xml;
+
+enum TType { TICKS, FRAMES };
+
+//---------------------------------------------------------
+//   Pos
+//    depending on type _tick or _frame is a cached
+//    value. When the tempomap changes, all cached values
+//    are invalid. Sn is used to check for tempomap
+//    changes.
+//---------------------------------------------------------
+
+class Pos {
+   public:
+
+   private:
+      TType _type;
+      mutable int sn;
+      mutable unsigned _tick;
+      mutable unsigned _frame;
+
+   public:
+      Pos();
+      Pos(int measure, int beat, int tick);
+      Pos(int minute, int sec, int frame, int subframe);
+      Pos(unsigned, TType type = TICKS);
+      Pos(const QString&);
+      void dump(int n = 0) const;
+
+      unsigned time(TType t) const { return t == TICKS ? tick() : frame(); }
+      void mbt(int* measure, int* beat, int* tick) const;
+      void msf(int* minute, int* sec, int* frame, int* subframe) const;
+      TimeSignature timesig() const;
+      void snap(int);
+      void upSnap(int);
+      void downSnap(int);
+      Pos snaped(int) const;
+      Pos upSnaped(int) const;
+      Pos downSnaped(int) const;
+
+      void invalidSn()  { sn = -1; }
+
+      TType  type() const     { return _type; }
+      void   setType(TType t);
+
+      Pos& operator+=(const Pos& a);
+      Pos& operator+=(int a);
+      Pos& operator-=(const Pos& a);
+      Pos& operator-=(int a);
+
+      bool operator>=(const Pos& s) const;
+      bool operator>(const Pos& s) const;
+      bool operator<(const Pos& s) const;
+      bool operator<=(const Pos& s) const;
+      bool operator==(const Pos& s) const;
+      bool operator!=(const Pos& s) const;
+
+      friend Pos operator+(const Pos& a, const Pos& b);
+      friend Pos operator-(const Pos& a, const Pos& b);
+      friend Pos operator+(const Pos& a, int b);
+      friend Pos operator-(const Pos& a, int b);
+
+      unsigned tick() const;
+      unsigned frame() const;
+      void setTick(unsigned);
+      void setFrame(unsigned);
+
+      void write(Xml&, const char*) const;
+      void read(QDomNode);
+      bool isValid() const { return true; }
+      };
+
+//---------------------------------------------------------
+//   PosLen
+//---------------------------------------------------------
+
+class PosLen : public Pos {
+      mutable unsigned _lenTick;
+      mutable unsigned _lenFrame;
+      mutable int sn;
+
+   public:
+      PosLen();
+      PosLen(const PosLen&);
+      void dump(int n = 0) const;
+
+      void write(Xml&, const char*) const;
+      void read(QDomNode);
+      void setLenTick(unsigned);
+      void setLenFrame(unsigned);
+      unsigned lenTick() const;
+      unsigned lenFrame() const;
+      Pos end() const;
+      unsigned endTick() const    { return end().tick(); }
+      unsigned endFrame() const   { return end().frame(); }
+      void setPos(const Pos&);
+
+      bool operator==(const PosLen& s) const;
+      };
+}
+
+#endif