diff data/model/PowerOfSqrtTwoZoomConstraint.h @ 147:3a13b0d4934e

* Reorganising code base.  This revision will not compile.

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/data/model/PowerOfSqrtTwoZoomConstraint.h	Mon Jul 31 11:44:37 2006 +0000
@@ -0,0 +1,39 @@
+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Sonic Visualiser
+    An audio file viewer and annotation editor.
+    Centre for Digital Music, Queen Mary, University of London.
+    This file copyright 2006 Chris Cannam.
+    
+    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.
+*/
+
+#ifndef _POWER_OF_SQRT_TWO_ZOOM_CONSTRAINT_H_
+#define _POWER_OF_SQRT_TWO_ZOOM_CONSTRAINT_H_
+
+#include "base/ZoomConstraint.h"
+
+class PowerOfSqrtTwoZoomConstraint : virtual public ZoomConstraint
+{
+public:
+    virtual size_t getNearestBlockSize(size_t requestedBlockSize,
+				       RoundingDirection dir = RoundNearest)
+	const;
+    
+protected:
+    virtual size_t getNearestBlockSize(size_t requestedBlockSize,
+				       int &type,
+				       int &power,
+				       RoundingDirection dir = RoundNearest)
+	const;
+	
+    virtual size_t getMinCachePower() const { return 6; }
+};
+
+#endif
+