Chris@1528: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@1528: 
Chris@1528: /*
Chris@1528:     Sonic Visualiser
Chris@1528:     An audio file viewer and annotation editor.
Chris@1528:     Centre for Digital Music, Queen Mary, University of London.
Chris@1528:     
Chris@1528:     This program is free software; you can redistribute it and/or
Chris@1528:     modify it under the terms of the GNU General Public License as
Chris@1528:     published by the Free Software Foundation; either version 2 of the
Chris@1528:     License, or (at your option) any later version.  See the file
Chris@1528:     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@1528:         ZoomConstraint c;
Chris@1528:         QCOMPARE(c.getNearestBlockSize(1), 1);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(2), 2);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(3), 3);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(4), 4);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(20), 20);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(23), 23);
Chris@1528:         int max = c.getMaxZoomLevel();
Chris@1528:         QCOMPARE(c.getNearestBlockSize(max), max);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(max+1), max);
Chris@1528:     }
Chris@1528:     
Chris@1528:     void unconstrainedUp() {
Chris@1528:         ZoomConstraint c;
Chris@1528:         QCOMPARE(c.getNearestBlockSize(1, ZoomConstraint::RoundUp), 1);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(2, ZoomConstraint::RoundUp), 2);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(3, ZoomConstraint::RoundUp), 3);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(4, ZoomConstraint::RoundUp), 4);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(20, ZoomConstraint::RoundUp), 20);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(32, ZoomConstraint::RoundUp), 32);
Chris@1528:         int max = c.getMaxZoomLevel();
Chris@1528:         QCOMPARE(c.getNearestBlockSize(max, ZoomConstraint::RoundUp), max);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(max+1, ZoomConstraint::RoundUp), max);
Chris@1528:     }
Chris@1528:     
Chris@1528:     void unconstrainedDown() {
Chris@1528:         ZoomConstraint c;
Chris@1528:         QCOMPARE(c.getNearestBlockSize(1, ZoomConstraint::RoundDown), 1);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(2, ZoomConstraint::RoundDown), 2);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(3, ZoomConstraint::RoundDown), 3);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(4, ZoomConstraint::RoundDown), 4);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(20, ZoomConstraint::RoundDown), 20);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(32, ZoomConstraint::RoundDown), 32);
Chris@1528:         int max = c.getMaxZoomLevel();
Chris@1528:         QCOMPARE(c.getNearestBlockSize(max, ZoomConstraint::RoundDown), max);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(max+1, ZoomConstraint::RoundDown), max);
Chris@1528:     }
Chris@1528: 
Chris@1528:     void powerOfTwoNearest() {
Chris@1528:         PowerOfTwoZoomConstraint c;
Chris@1528:         QCOMPARE(c.getNearestBlockSize(1), 1);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(2), 2);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(3), 2);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(4), 4);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(20), 16);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(23), 16);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(24), 16);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(25), 32);
Chris@1528:         int max = c.getMaxZoomLevel();
Chris@1528:         QCOMPARE(c.getNearestBlockSize(max), max);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(max+1), max);
Chris@1528:     }
Chris@1528:     
Chris@1528:     void powerOfTwoUp() {
Chris@1528:         PowerOfTwoZoomConstraint c;
Chris@1528:         QCOMPARE(c.getNearestBlockSize(1, ZoomConstraint::RoundUp), 1);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(2, ZoomConstraint::RoundUp), 2);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(3, ZoomConstraint::RoundUp), 4);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(4, ZoomConstraint::RoundUp), 4);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(20, ZoomConstraint::RoundUp), 32);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(32, ZoomConstraint::RoundUp), 32);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(33, ZoomConstraint::RoundUp), 64);
Chris@1528:         int max = c.getMaxZoomLevel();
Chris@1528:         QCOMPARE(c.getNearestBlockSize(max, ZoomConstraint::RoundUp), max);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(max+1, ZoomConstraint::RoundUp), max);
Chris@1528:     }
Chris@1528:     
Chris@1528:     void powerOfTwoDown() {
Chris@1528:         PowerOfTwoZoomConstraint c;
Chris@1528:         QCOMPARE(c.getNearestBlockSize(1, ZoomConstraint::RoundDown), 1);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(2, ZoomConstraint::RoundDown), 2);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(3, ZoomConstraint::RoundDown), 2);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(4, ZoomConstraint::RoundDown), 4);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(20, ZoomConstraint::RoundDown), 16);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(32, ZoomConstraint::RoundDown), 32);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(33, ZoomConstraint::RoundDown), 32);
Chris@1528:         int max = c.getMaxZoomLevel();
Chris@1528:         QCOMPARE(c.getNearestBlockSize(max, ZoomConstraint::RoundDown), max);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(max+1, ZoomConstraint::RoundDown), max);
Chris@1528:     }
Chris@1528: 
Chris@1528:     void powerOfSqrtTwoNearest() {
Chris@1528:         PowerOfSqrtTwoZoomConstraint c;
Chris@1528:         QCOMPARE(c.getNearestBlockSize(1), 1);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(2), 2);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(3), 2);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(4), 4);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(18), 16);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(19), 16);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(20), 22);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(23), 22);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(28), 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@1528:         QCOMPARE(c.getNearestBlockSize(800), 720);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(1023), 1024);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(1024), 1024);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(1025), 1024);
Chris@1528:         int max = c.getMaxZoomLevel();
Chris@1528:         QCOMPARE(c.getNearestBlockSize(max), max);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(max+1), max);
Chris@1528:     }
Chris@1528:     
Chris@1528:     void powerOfSqrtTwoUp() {
Chris@1528:         PowerOfSqrtTwoZoomConstraint c;
Chris@1528:         QCOMPARE(c.getNearestBlockSize(1, ZoomConstraint::RoundUp), 1);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(2, ZoomConstraint::RoundUp), 2);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(3, ZoomConstraint::RoundUp), 4);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(4, ZoomConstraint::RoundUp), 4);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(18, ZoomConstraint::RoundUp), 22);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(22, ZoomConstraint::RoundUp), 22);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(23, ZoomConstraint::RoundUp), 32);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(800, ZoomConstraint::RoundUp), 1024);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(1023, ZoomConstraint::RoundUp), 1024);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(1024, ZoomConstraint::RoundUp), 1024);
Chris@1528:         // see comment above
Chris@1528:         QCOMPARE(c.getNearestBlockSize(1025, ZoomConstraint::RoundUp), 1440);
Chris@1528:         int max = c.getMaxZoomLevel();
Chris@1528:         QCOMPARE(c.getNearestBlockSize(max, ZoomConstraint::RoundUp), max);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(max+1, ZoomConstraint::RoundUp), max);
Chris@1528:     }
Chris@1528:     
Chris@1528:     void powerOfSqrtTwoDown() {
Chris@1528:         PowerOfSqrtTwoZoomConstraint c;
Chris@1528:         QCOMPARE(c.getNearestBlockSize(1, ZoomConstraint::RoundDown), 1);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(2, ZoomConstraint::RoundDown), 2);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(3, ZoomConstraint::RoundDown), 2);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(4, ZoomConstraint::RoundDown), 4);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(18, ZoomConstraint::RoundDown), 16);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(22, ZoomConstraint::RoundDown), 22);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(23, ZoomConstraint::RoundDown), 22);
Chris@1528:         // see comment above
Chris@1528:         QCOMPARE(c.getNearestBlockSize(800, ZoomConstraint::RoundDown), 720);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(1023, ZoomConstraint::RoundDown), 720);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(1024, ZoomConstraint::RoundDown), 1024);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(1025, ZoomConstraint::RoundDown), 1024);
Chris@1528:         int max = c.getMaxZoomLevel();
Chris@1528:         QCOMPARE(c.getNearestBlockSize(max, ZoomConstraint::RoundDown), max);
Chris@1528:         QCOMPARE(c.getNearestBlockSize(max+1, ZoomConstraint::RoundDown), max);
Chris@1528:     }
Chris@1528: };
Chris@1528: 
Chris@1528: #endif
Chris@1528: