diff layer/VerticalScaleLayer.h @ 696:e77b1673e17e tonioni

Pull out log and linear vertical scales into their own classes, make some improvements to log numbering

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/layer/VerticalScaleLayer.h	Wed Dec 04 11:35:08 2013 +0000
@@ -0,0 +1,29 @@
+/* -*- 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 2006-2013 Chris Cannam and QMUL.
+    
+    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 VERTICAL_SCALE_LAYER_H
+#define VERTICAL_SCALE_LAYER_H
+
+class VerticalScaleLayer
+{
+public:
+    virtual void getScaleExtents(View *, float &min, float &max, bool &log) const = 0;
+    virtual int getYForValue(View *, float value) const = 0;
+    virtual float getValueForY(View *, int y) const = 0;
+    virtual QString getScaleUnits() const = 0;
+};
+
+#endif
+