Chris@1528: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@1528: 
Chris@1528: /*
Chris@1530:   Sonic Visualiser
Chris@1530:   An audio file viewer and annotation editor.
Chris@1530:   Centre for Digital Music, Queen Mary, University of London.
Chris@1528:     
Chris@1530:   This program is free software; you can redistribute it and/or
Chris@1530:   modify it under the terms of the GNU General Public License as
Chris@1530:   published by the Free Software Foundation; either version 2 of the
Chris@1530:   License, or (at your option) any later version.  See the file
Chris@1530:   COPYING included with this distribution for more information.
Chris@1528: */
Chris@1528: 
Chris@1528: #ifndef TEST_ZOOM_CONSTRAINTS_H
Chris@1528: #define TEST_ZOOM_CONSTRAINTS_H
Chris@1528: 
Chris@1528: #include "../PowerOfTwoZoomConstraint.h"
Chris@1528: #include "../PowerOfSqrtTwoZoomConstraint.h"
Chris@1528: 
Chris@1528: #include <QObject>
Chris@1528: #include <QtTest>
Chris@1528: #include <QDir>
Chris@1528: 
Chris@1528: #include <iostream>
Chris@1528: 
Chris@1528: using namespace std;
Chris@1528: 
Chris@1528: class TestZoomConstraints : public QObject
Chris@1528: {
Chris@1528:     Q_OBJECT
Chris@1528: 
Chris@1528: private slots:
Chris@1528:     void unconstrainedNearest() {
Chris@1530:         // well, this shows how horrible this api is
Chris@1528:         ZoomConstraint c;
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 1)), ZoomLevel(ZoomLevel::FramesPerPixel, 1));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 2)), ZoomLevel(ZoomLevel::FramesPerPixel, 2));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 3)), ZoomLevel(ZoomLevel::FramesPerPixel, 3));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 4)), ZoomLevel(ZoomLevel::FramesPerPixel, 4));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 20)), ZoomLevel(ZoomLevel::FramesPerPixel, 20));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 23)), ZoomLevel(ZoomLevel::FramesPerPixel, 23));
Chris@1530:         auto max = c.getMaxZoomLevel();
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(max), max);
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, max.level + 1)), max);
Chris@1528:     }
Chris@1528:     
Chris@1528:     void unconstrainedUp() {
Chris@1528:         ZoomConstraint c;
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 1), ZoomConstraint::RoundUp), ZoomLevel(ZoomLevel::FramesPerPixel, 1));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 2), ZoomConstraint::RoundUp), ZoomLevel(ZoomLevel::FramesPerPixel, 2));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 3), ZoomConstraint::RoundUp), ZoomLevel(ZoomLevel::FramesPerPixel, 3));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 4), ZoomConstraint::RoundUp), ZoomLevel(ZoomLevel::FramesPerPixel, 4));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 20), ZoomConstraint::RoundUp), ZoomLevel(ZoomLevel::FramesPerPixel, 20));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 32), ZoomConstraint::RoundUp), ZoomLevel(ZoomLevel::FramesPerPixel, 32));
Chris@1530:         auto max = c.getMaxZoomLevel();
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(max, ZoomConstraint::RoundUp), max);
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, max.level + 1), ZoomConstraint::RoundUp), max);
Chris@1528:     }
Chris@1528:     
Chris@1528:     void unconstrainedDown() {
Chris@1528:         ZoomConstraint c;
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 1), ZoomConstraint::RoundDown), ZoomLevel(ZoomLevel::FramesPerPixel, 1));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 2), ZoomConstraint::RoundDown), ZoomLevel(ZoomLevel::FramesPerPixel, 2));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 3), ZoomConstraint::RoundDown), ZoomLevel(ZoomLevel::FramesPerPixel, 3));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 4), ZoomConstraint::RoundDown), ZoomLevel(ZoomLevel::FramesPerPixel, 4));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 20), ZoomConstraint::RoundDown), ZoomLevel(ZoomLevel::FramesPerPixel, 20));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 32), ZoomConstraint::RoundDown), ZoomLevel(ZoomLevel::FramesPerPixel, 32));
Chris@1530:         auto max = c.getMaxZoomLevel();
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(max, ZoomConstraint::RoundDown), max);
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, max.level + 1), ZoomConstraint::RoundDown), max);
Chris@1528:     }
Chris@1528: 
Chris@1528:     void powerOfTwoNearest() {
Chris@1528:         PowerOfTwoZoomConstraint c;
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 1)), ZoomLevel(ZoomLevel::FramesPerPixel, 1));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 2)), ZoomLevel(ZoomLevel::FramesPerPixel, 2));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 3)), ZoomLevel(ZoomLevel::FramesPerPixel, 2));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 4)), ZoomLevel(ZoomLevel::FramesPerPixel, 4));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 20)), ZoomLevel(ZoomLevel::FramesPerPixel, 16));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 23)), ZoomLevel(ZoomLevel::FramesPerPixel, 16));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 24)), ZoomLevel(ZoomLevel::FramesPerPixel, 16));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 25)), ZoomLevel(ZoomLevel::FramesPerPixel, 32));
Chris@1530:         auto max = c.getMaxZoomLevel();
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(max), max);
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, max.level + 1)), max);
Chris@1528:     }
Chris@1528:     
Chris@1528:     void powerOfTwoUp() {
Chris@1528:         PowerOfTwoZoomConstraint c;
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 1), ZoomConstraint::RoundUp), ZoomLevel(ZoomLevel::FramesPerPixel, 1));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 2), ZoomConstraint::RoundUp), ZoomLevel(ZoomLevel::FramesPerPixel, 2));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 3), ZoomConstraint::RoundUp), ZoomLevel(ZoomLevel::FramesPerPixel, 4));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 4), ZoomConstraint::RoundUp), ZoomLevel(ZoomLevel::FramesPerPixel, 4));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 20), ZoomConstraint::RoundUp), ZoomLevel(ZoomLevel::FramesPerPixel, 32));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 32), ZoomConstraint::RoundUp), ZoomLevel(ZoomLevel::FramesPerPixel, 32));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 33), ZoomConstraint::RoundUp), ZoomLevel(ZoomLevel::FramesPerPixel, 64));
Chris@1530:         auto max = c.getMaxZoomLevel();
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(max, ZoomConstraint::RoundUp), max);
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, max.level + 1), ZoomConstraint::RoundUp), max);
Chris@1528:     }
Chris@1528:     
Chris@1528:     void powerOfTwoDown() {
Chris@1528:         PowerOfTwoZoomConstraint c;
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 1), ZoomConstraint::RoundDown), ZoomLevel(ZoomLevel::FramesPerPixel, 1));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 2), ZoomConstraint::RoundDown), ZoomLevel(ZoomLevel::FramesPerPixel, 2));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 3), ZoomConstraint::RoundDown), ZoomLevel(ZoomLevel::FramesPerPixel, 2));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 4), ZoomConstraint::RoundDown), ZoomLevel(ZoomLevel::FramesPerPixel, 4));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 20), ZoomConstraint::RoundDown), ZoomLevel(ZoomLevel::FramesPerPixel, 16));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 32), ZoomConstraint::RoundDown), ZoomLevel(ZoomLevel::FramesPerPixel, 32));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 33), ZoomConstraint::RoundDown), ZoomLevel(ZoomLevel::FramesPerPixel, 32));
Chris@1530:         auto max = c.getMaxZoomLevel();
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(max, ZoomConstraint::RoundDown), max);
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, max.level + 1), ZoomConstraint::RoundDown), max);
Chris@1528:     }
Chris@1528: 
Chris@1528:     void powerOfSqrtTwoNearest() {
Chris@1528:         PowerOfSqrtTwoZoomConstraint c;
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 1)), ZoomLevel(ZoomLevel::FramesPerPixel, 1));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 2)), ZoomLevel(ZoomLevel::FramesPerPixel, 2));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 3)), ZoomLevel(ZoomLevel::FramesPerPixel, 2));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 4)), ZoomLevel(ZoomLevel::FramesPerPixel, 4));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 18)), ZoomLevel(ZoomLevel::FramesPerPixel, 16));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 19)), ZoomLevel(ZoomLevel::FramesPerPixel, 16));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 20)), ZoomLevel(ZoomLevel::FramesPerPixel, 22));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 23)), ZoomLevel(ZoomLevel::FramesPerPixel, 22));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 28)), ZoomLevel(ZoomLevel::FramesPerPixel, 32));
Chris@1528:         // PowerOfSqrtTwoZoomConstraint makes an effort to ensure
Chris@1528:         // bigger numbers get rounded to a multiple of something
Chris@1528:         // simple (64 or 90 depending on whether they are power-of-two
Chris@1528:         // or power-of-sqrt-two types)
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 800)), ZoomLevel(ZoomLevel::FramesPerPixel, 720));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 1023)), ZoomLevel(ZoomLevel::FramesPerPixel, 1024));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 1024)), ZoomLevel(ZoomLevel::FramesPerPixel, 1024));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 1025)), ZoomLevel(ZoomLevel::FramesPerPixel, 1024));
Chris@1530:         auto max = c.getMaxZoomLevel();
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(max), max);
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, max.level + 1)), max);
Chris@1528:     }
Chris@1528:     
Chris@1528:     void powerOfSqrtTwoUp() {
Chris@1528:         PowerOfSqrtTwoZoomConstraint c;
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 1), ZoomConstraint::RoundUp), ZoomLevel(ZoomLevel::FramesPerPixel, 1));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 2), ZoomConstraint::RoundUp), ZoomLevel(ZoomLevel::FramesPerPixel, 2));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 3), ZoomConstraint::RoundUp), ZoomLevel(ZoomLevel::FramesPerPixel, 4));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 4), ZoomConstraint::RoundUp), ZoomLevel(ZoomLevel::FramesPerPixel, 4));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 18), ZoomConstraint::RoundUp), ZoomLevel(ZoomLevel::FramesPerPixel, 22));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 22), ZoomConstraint::RoundUp), ZoomLevel(ZoomLevel::FramesPerPixel, 22));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 23), ZoomConstraint::RoundUp), ZoomLevel(ZoomLevel::FramesPerPixel, 32));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 800), ZoomConstraint::RoundUp), ZoomLevel(ZoomLevel::FramesPerPixel, 1024));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 1023), ZoomConstraint::RoundUp), ZoomLevel(ZoomLevel::FramesPerPixel, 1024));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 1024), ZoomConstraint::RoundUp), ZoomLevel(ZoomLevel::FramesPerPixel, 1024));
Chris@1528:         // see comment above
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 1025), ZoomConstraint::RoundUp), ZoomLevel(ZoomLevel::FramesPerPixel, 1440));
Chris@1530:         auto max = c.getMaxZoomLevel();
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(max, ZoomConstraint::RoundUp), max);
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, max.level + 1), ZoomConstraint::RoundUp), max);
Chris@1528:     }
Chris@1528:     
Chris@1528:     void powerOfSqrtTwoDown() {
Chris@1528:         PowerOfSqrtTwoZoomConstraint c;
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 1), ZoomConstraint::RoundDown), ZoomLevel(ZoomLevel::FramesPerPixel, 1));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 2), ZoomConstraint::RoundDown), ZoomLevel(ZoomLevel::FramesPerPixel, 2));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 3), ZoomConstraint::RoundDown), ZoomLevel(ZoomLevel::FramesPerPixel, 2));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 4), ZoomConstraint::RoundDown), ZoomLevel(ZoomLevel::FramesPerPixel, 4));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 18), ZoomConstraint::RoundDown), ZoomLevel(ZoomLevel::FramesPerPixel, 16));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 22), ZoomConstraint::RoundDown), ZoomLevel(ZoomLevel::FramesPerPixel, 22));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 23), ZoomConstraint::RoundDown), ZoomLevel(ZoomLevel::FramesPerPixel, 22));
Chris@1528:         // see comment above
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 800), ZoomConstraint::RoundDown), ZoomLevel(ZoomLevel::FramesPerPixel, 720));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 1023), ZoomConstraint::RoundDown), ZoomLevel(ZoomLevel::FramesPerPixel, 720));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 1024), ZoomConstraint::RoundDown), ZoomLevel(ZoomLevel::FramesPerPixel, 1024));
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, 1025), ZoomConstraint::RoundDown), ZoomLevel(ZoomLevel::FramesPerPixel, 1024));
Chris@1530:         auto max = c.getMaxZoomLevel();
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(max, ZoomConstraint::RoundDown), max);
Chris@1530:         QCOMPARE(c.getNearestZoomLevel(ZoomLevel(ZoomLevel::FramesPerPixel, max.level + 1), ZoomConstraint::RoundDown), max);
Chris@1528:     }
Chris@1528: };
Chris@1528: 
Chris@1528: #endif
Chris@1528: