RelativelyFineZoomConstraint.h
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1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
2 
3 /*
4  Sonic Visualiser
5  An audio file viewer and annotation editor.
6  Centre for Digital Music, Queen Mary, University of London.
7 
8  This program is free software; you can redistribute it and/or
9  modify it under the terms of the GNU General Public License as
10  published by the Free Software Foundation; either version 2 of the
11  License, or (at your option) any later version. See the file
12  COPYING included with this distribution for more information.
13 */
14 
15 #ifndef SV_RELATIVELY_FINE_ZOOM_CONSTRAINT_H
16 #define SV_RELATIVELY_FINE_ZOOM_CONSTRAINT_H
17 
18 #include "base/ZoomConstraint.h"
19 
21 {
22 public:
23  virtual ZoomLevel getNearestZoomLevel(ZoomLevel requested,
25  const override;
26 };
27 
28 #endif
29 
Display zoom level.
Definition: ZoomLevel.h:26
ZoomConstraint is a simple interface that describes a limitation on the available zoom sizes for a vi...
virtual ZoomLevel getNearestZoomLevel(ZoomLevel requested, RoundingDirection dir=RoundNearest) const override
Given an "ideal" zoom level (frames per pixel or pixels per frame) for a given zoom level...