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kleuter
2023-10-29 23:33:08 +01:00
parent 71d22ab6b0
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tests/auto/corelib/tools/qeasingcurve/CMakeLists.txt Normal file
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# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: BSD-3-Clause
#####################################################################
## tst_qeasingcurve Test:
#####################################################################
qt_internal_add_test(tst_qeasingcurve
SOURCES
tst_qeasingcurve.cpp
)

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tests/auto/corelib/tools/qeasingcurve/tst_qeasingcurve.cpp Normal file
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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include <QTest>
#include <qeasingcurve.h>
#include <utility> // for std::move()
class tst_QEasingCurve : public QObject
{
Q_OBJECT
private slots:
void type();
void propertyDefaults();
void valueForProgress_data();
void valueForProgress();
void setCustomType();
void operators();
void properties();
void metaTypes();
void propertyOrderIsNotImportant();
void bezierSpline_data();
void bezierSpline();
void tcbSpline_data();
void tcbSpline();
void testCbrtDouble();
void testCbrtFloat();
void cpp11();
void quadraticEquation();
void streamInOut_data();
void streamInOut();
};
void tst_QEasingCurve::type()
{
{
QEasingCurve curve(QEasingCurve::Linear);
QCOMPARE(curve.period(), 0.3);
QCOMPARE(curve.amplitude(), 1.0);
curve.setPeriod(5);
curve.setAmplitude(3);
QCOMPARE(curve.period(), 5.0);
QCOMPARE(curve.amplitude(), 3.0);
curve.setType(QEasingCurve::InElastic);
QCOMPARE(curve.period(), 5.0);
QCOMPARE(curve.amplitude(), 3.0);
}
{
QEasingCurve curve(QEasingCurve::InElastic);
QCOMPARE(curve.period(), 0.3);
QCOMPARE(curve.amplitude(), 1.0);
curve.setAmplitude(2);
QCOMPARE(curve.type(), QEasingCurve::InElastic);
curve.setType(QEasingCurve::Linear);
}
{
// check bounaries
QEasingCurve curve(QEasingCurve::InCubic);
QTest::ignoreMessage(QtWarningMsg, "QEasingCurve: Invalid curve type 9999");
curve.setType((QEasingCurve::Type)9999);
QCOMPARE(curve.type(), QEasingCurve::InCubic);
QTest::ignoreMessage(QtWarningMsg, "QEasingCurve: Invalid curve type -9999");
curve.setType((QEasingCurve::Type)-9999);
QCOMPARE(curve.type(), QEasingCurve::InCubic);
QTest::ignoreMessage(QtWarningMsg, QString::fromLatin1("QEasingCurve: Invalid curve type %1")
.arg(QEasingCurve::NCurveTypes).toLatin1().constData());
curve.setType(QEasingCurve::NCurveTypes);
QCOMPARE(curve.type(), QEasingCurve::InCubic);
QTest::ignoreMessage(QtWarningMsg, QString::fromLatin1("QEasingCurve: Invalid curve type %1")
.arg(QEasingCurve::Custom).toLatin1().constData());
curve.setType(QEasingCurve::Custom);
QCOMPARE(curve.type(), QEasingCurve::InCubic);
QTest::ignoreMessage(QtWarningMsg, QString::fromLatin1("QEasingCurve: Invalid curve type %1")
.arg(-1).toLatin1().constData());
curve.setType((QEasingCurve::Type)-1);
QCOMPARE(curve.type(), QEasingCurve::InCubic);
curve.setType(QEasingCurve::Linear);
QCOMPARE(curve.type(), QEasingCurve::Linear);
curve.setType(QEasingCurve::CosineCurve);
QCOMPARE(curve.type(), QEasingCurve::CosineCurve);
}
}
void tst_QEasingCurve::propertyDefaults()
{
{
// checks if the defaults are correct, but also demonstrates a weakness with the API.
QEasingCurve curve(QEasingCurve::InElastic);
QCOMPARE(curve.period(), 0.3);
QCOMPARE(curve.amplitude(), 1.0);
QCOMPARE(curve.overshoot(), qreal(1.70158));
curve.setType(QEasingCurve::InBounce);
QCOMPARE(curve.period(), 0.3);
QCOMPARE(curve.amplitude(), 1.0);
QCOMPARE(curve.overshoot(), qreal(1.70158));
curve.setType(QEasingCurve::Linear);
QCOMPARE(curve.period(), 0.3);
QCOMPARE(curve.amplitude(), 1.0);
QCOMPARE(curve.overshoot(), qreal(1.70158));
curve.setType(QEasingCurve::InElastic);
QCOMPARE(curve.period(), 0.3);
QCOMPARE(curve.amplitude(), 1.0);
QCOMPARE(curve.overshoot(), qreal(1.70158));
curve.setPeriod(0.4);
curve.setAmplitude(0.6);
curve.setOvershoot(1.0);
curve.setType(QEasingCurve::Linear);
QCOMPARE(curve.period(), 0.4);
QCOMPARE(curve.amplitude(), 0.6);
QCOMPARE(curve.overshoot(), 1.0);
curve.setType(QEasingCurve::InElastic);
QCOMPARE(curve.period(), 0.4);
QCOMPARE(curve.amplitude(), 0.6);
QCOMPARE(curve.overshoot(), 1.0);
}
}
typedef QList<int> IntList;
typedef QList<qreal> RealList;
void tst_QEasingCurve::valueForProgress_data()
{
QTest::addColumn<int>("type");
QTest::addColumn<IntList>("at");
QTest::addColumn<RealList>("expected");
// automatically generated.
// note that values are scaled from range [0,1] to range [0, 100] in order to store them as
// integer values and avoid fp inaccuracies
QTest::newRow("Linear") << int(QEasingCurve::Linear)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.1000 << 0.2000 << 0.3000 << 0.4000 << 0.5000 << 0.6000 << 0.7000 << 0.8000 << 0.9000 << 1.0000);
QTest::newRow("InQuad") << int(QEasingCurve::InQuad)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.0100 << 0.0400 << 0.0900 << 0.1600 << 0.2500 << 0.3600 << 0.4900 << 0.6400 << 0.8100 << 1.0000);
QTest::newRow("OutQuad") << int(QEasingCurve::OutQuad)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.1900 << 0.3600 << 0.5100 << 0.6400 << 0.7500 << 0.8400 << 0.9100 << 0.9600 << 0.9900 << 1.0000);
QTest::newRow("InOutQuad") << int(QEasingCurve::InOutQuad)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.0200 << 0.0800 << 0.1800 << 0.3200 << 0.5000 << 0.6800 << 0.8200 << 0.9200 << 0.9800 << 1.0000);
QTest::newRow("OutInQuad") << int(QEasingCurve::OutInQuad)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.1800 << 0.3200 << 0.4200 << 0.4800 << 0.5000 << 0.5200 << 0.5800 << 0.6800 << 0.8200 << 1.0000);
QTest::newRow("InCubic") << int(QEasingCurve::InCubic)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.0010 << 0.0080 << 0.0270 << 0.0640 << 0.1250 << 0.2160 << 0.3430 << 0.5120 << 0.7290 << 1.0000);
QTest::newRow("OutCubic") << int(QEasingCurve::OutCubic)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.2710 << 0.4880 << 0.6570 << 0.7840 << 0.8750 << 0.9360 << 0.9730 << 0.9920 << 0.9990 << 1.0000);
QTest::newRow("InOutCubic") << int(QEasingCurve::InOutCubic)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.0040 << 0.0320 << 0.1080 << 0.2560 << 0.5000 << 0.7440 << 0.8920 << 0.9680 << 0.9960 << 1.0000);
QTest::newRow("OutInCubic") << int(QEasingCurve::OutInCubic)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.2440 << 0.3920 << 0.4680 << 0.4960 << 0.5000 << 0.5040 << 0.5320 << 0.6080 << 0.7560 << 1.0000);
QTest::newRow("InQuart") << int(QEasingCurve::InQuart)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.0001 << 0.0016 << 0.0081 << 0.0256 << 0.0625 << 0.1296 << 0.2401 << 0.4096 << 0.6561 << 1.0000);
QTest::newRow("OutQuart") << int(QEasingCurve::OutQuart)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.3439 << 0.5904 << 0.7599 << 0.8704 << 0.9375 << 0.9744 << 0.9919 << 0.9984 << 0.9999 << 1.0000);
QTest::newRow("InOutQuart") << int(QEasingCurve::InOutQuart)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.0008 << 0.0128 << 0.0648 << 0.2048 << 0.5000 << 0.7952 << 0.9352 << 0.9872 << 0.9992 << 1.0000);
QTest::newRow("OutInQuart") << int(QEasingCurve::OutInQuart)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.2952 << 0.4352 << 0.4872 << 0.4992 << 0.5000 << 0.5008 << 0.5128 << 0.5648 << 0.7048 << 1.0000);
QTest::newRow("InQuint") << int(QEasingCurve::InQuint)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.0000 << 0.0003 << 0.0024 << 0.0102 << 0.0313 << 0.0778 << 0.1681 << 0.3277 << 0.5905 << 1.0000);
QTest::newRow("OutQuint") << int(QEasingCurve::OutQuint)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.4095 << 0.6723 << 0.8319 << 0.9222 << 0.9688 << 0.9898 << 0.9976 << 0.9997 << 1.0000 << 1.0000);
QTest::newRow("InOutQuint") << int(QEasingCurve::InOutQuint)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.0002 << 0.0051 << 0.0389 << 0.1638 << 0.5000 << 0.8362 << 0.9611 << 0.9949 << 0.9998 << 1.0000);
QTest::newRow("OutInQuint") << int(QEasingCurve::OutInQuint)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.3362 << 0.4611 << 0.4949 << 0.4998 << 0.5000 << 0.5002 << 0.5051 << 0.5389 << 0.6638 << 1.0000);
QTest::newRow("InSine") << int(QEasingCurve::InSine)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.0123 << 0.0489 << 0.1090 << 0.1910 << 0.2929 << 0.4122 << 0.5460 << 0.6910 << 0.8436 << 1.0000);
QTest::newRow("OutSine") << int(QEasingCurve::OutSine)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.1564 << 0.3090 << 0.4540 << 0.5878 << 0.7071 << 0.8090 << 0.8910 << 0.9511 << 0.9877 << 1.0000);
QTest::newRow("InOutSine") << int(QEasingCurve::InOutSine)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.0245 << 0.0955 << 0.2061 << 0.3455 << 0.5000 << 0.6545 << 0.7939 << 0.9045 << 0.9755 << 1.0000);
QTest::newRow("OutInSine") << int(QEasingCurve::OutInSine)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.1545 << 0.2939 << 0.4045 << 0.4755 << 0.5000 << 0.5245 << 0.5955 << 0.7061 << 0.8455 << 1.0000);
QTest::newRow("InExpo") << int(QEasingCurve::InExpo)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.0010 << 0.0029 << 0.0068 << 0.0146 << 0.0303 << 0.0615 << 0.1240 << 0.2490 << 0.4990 << 1.0000);
QTest::newRow("OutExpo") << int(QEasingCurve::OutExpo)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.5005 << 0.7507 << 0.8759 << 0.9384 << 0.9697 << 0.9854 << 0.9932 << 0.9971 << 0.9990 << 1.0000);
QTest::newRow("InOutExpo") << int(QEasingCurve::InOutExpo)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.0015 << 0.0073 << 0.0308 << 0.1245 << 0.5003 << 0.8754 << 0.9692 << 0.9927 << 0.9985 << 1.0000);
QTest::newRow("OutInExpo") << int(QEasingCurve::OutInExpo)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.3754 << 0.4692 << 0.4927 << 0.4985 << 0.5000 << 0.5015 << 0.5073 << 0.5308 << 0.6245 << 1.0000);
QTest::newRow("InCirc") << int(QEasingCurve::InCirc)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.0050 << 0.0202 << 0.0461 << 0.0835 << 0.1340 << 0.2000 << 0.2859 << 0.4000 << 0.5641 << 1.0000);
QTest::newRow("OutCirc") << int(QEasingCurve::OutCirc)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.4359 << 0.6000 << 0.7141 << 0.8000 << 0.8660 << 0.9165 << 0.9539 << 0.9798 << 0.9950 << 1.0000);
QTest::newRow("InOutCirc") << int(QEasingCurve::InOutCirc)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.0101 << 0.0417 << 0.1000 << 0.2000 << 0.5000 << 0.8000 << 0.9000 << 0.9583 << 0.9899 << 1.0000);
QTest::newRow("OutInCirc") << int(QEasingCurve::OutInCirc)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.3000 << 0.4000 << 0.4583 << 0.4899 << 0.5000 << 0.5101 << 0.5417 << 0.6000 << 0.7000 << 1.0000);
QTest::newRow("InElastic") << int(QEasingCurve::InElastic)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.0020 << -0.0020 << -0.0039 << 0.0156 << -0.0156 << -0.0313 << 0.1250 << -0.1250 << -0.2500 << 1.0000);
QTest::newRow("OutElastic") << int(QEasingCurve::OutElastic)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 1.2500 << 1.1250 << 0.8750 << 1.0313 << 1.0156 << 0.9844 << 1.0039 << 1.0020 << 0.9980 << 1.0000);
QTest::newRow("InOutElastic") << int(QEasingCurve::InOutElastic)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << -0.0010 << 0.0078 << -0.0156 << -0.0625 << 0.5000 << 1.0625 << 1.0156 << 0.9922 << 1.0010 << 1.0000);
QTest::newRow("OutInElastic") << int(QEasingCurve::OutInElastic)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.3750 << 0.5625 << 0.4922 << 0.4980 << 0.5000 << 0.4961 << 0.5078 << 0.5313 << 0.2500 << 1.0000);
QTest::newRow("InBack") << int(QEasingCurve::InBack)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << -0.0143 << -0.0465 << -0.0802 << -0.0994 << -0.0877 << -0.0290 << 0.0929 << 0.2942 << 0.5912 << 1.0000);
QTest::newRow("OutBack") << int(QEasingCurve::OutBack)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.4088 << 0.7058 << 0.9071 << 1.0290 << 1.0877 << 1.0994 << 1.0802 << 1.0465 << 1.0143 << 1.0000);
QTest::newRow("InOutBack") << int(QEasingCurve::InOutBack)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << -0.0375 << -0.0926 << -0.0788 << 0.0899 << 0.5000 << 0.9101 << 1.0788 << 1.0926 << 1.0375 << 1.0000);
QTest::newRow("OutInBack") << int(QEasingCurve::OutInBack)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.3529 << 0.5145 << 0.5497 << 0.5232 << 0.5000 << 0.4768 << 0.4503 << 0.4855 << 0.6471 << 1.0000);
QTest::newRow("InBounce") << int(QEasingCurve::InBounce)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.0119 << 0.0600 << 0.0694 << 0.2275 << 0.2344 << 0.0900 << 0.3194 << 0.6975 << 0.9244 << 1.0000);
QTest::newRow("OutBounce") << int(QEasingCurve::OutBounce)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.0756 << 0.3025 << 0.6806 << 0.9100 << 0.7656 << 0.7725 << 0.9306 << 0.9400 << 0.9881 << 1.0000);
QTest::newRow("InOutBounce") << int(QEasingCurve::InOutBounce)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.0300 << 0.1138 << 0.0450 << 0.3488 << 0.5000 << 0.6512 << 0.9550 << 0.8863 << 0.9700 << 1.0000);
QTest::newRow("OutInBounce") << int(QEasingCurve::OutInBounce)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.1513 << 0.4100 << 0.2725 << 0.4400 << 0.5000 << 0.5600 << 0.7275 << 0.5900 << 0.8488 << 1.0000);
QTest::newRow("InCurve") << int(QEasingCurve::InCurve)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.0245 << 0.1059 << 0.2343 << 0.3727 << 0.5000 << 0.6055 << 0.7000 << 0.8000 << 0.9000 << 1.0000);
QTest::newRow("OutCurve") << int(QEasingCurve::OutCurve)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.1000 << 0.2000 << 0.3000 << 0.3945 << 0.5000 << 0.6273 << 0.7657 << 0.8941 << 0.9755 << 1.0000);
QTest::newRow("SineCurve") << int(QEasingCurve::SineCurve)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.0000 << 0.0955 << 0.3455 << 0.6545 << 0.9045 << 1.0000 << 0.9045 << 0.6545 << 0.3455 << 0.0955 << 0.0000);
QTest::newRow("CosineCurve") << int(QEasingCurve::CosineCurve)
<< (IntList() << 0 << 10 << 20 << 30 << 40 << 50 << 60 << 70 << 80 << 90 << 100)
<< (RealList() << 0.5000 << 0.7939 << 0.9755 << 0.9755 << 0.7939 << 0.5000 << 0.2061 << 0.0245 << 0.0245 << 0.2061 << 0.5000);
}
/*
"fixedpoint" number that is scaled up by 10000.
This is to work around two bugs (precision and rounding error) in QString::setNum().
It does not trim off trailing zeros. This is good, just to emphasize the precision.
*/
QString fixedToString(int value)
{
QString str;
if (value < 0) {
str+= QLatin1Char('-');
value = -value;
}
QString digitArg(QLatin1String("%1."));
for (int i = 10000; i >= 1; i/=10) {
int digit = value/i;
value -= digit*i;
str.append(digitArg.arg(digit));
digitArg = QLatin1String("%1");
}
return str;
}
void tst_QEasingCurve::valueForProgress()
{
#if 0
// used to generate data tables...
QFile out;
out.open(stdout, QIODevice::WriteOnly);
for (int c = QEasingCurve::Linear; c < QEasingCurve::NCurveTypes - 1; ++c) {
QEasingCurve curve((QEasingCurve::Type)c);
QMetaObject mo = QEasingCurve::staticMetaObject;
QString strCurve = QLatin1String(mo.enumerator(mo.indexOfEnumerator("Type")).key(c));
QString strInputs;
QString strOutputs;
for (int t = 0; t <= 100; t+= 10) {
qreal ease = curve.valueForProgress(t/qreal(100));
strInputs += QString::fromLatin1(" << %1").arg(t);
strOutputs += " << " + fixedToString(qRound(ease*10000));
}
QString str = QString::fromLatin1(" QTest::newRow(\"%1\") << int(QEasingCurve::%2)\n"
" << (IntList() %3)\n"
" << (RealList()%4);\n\n")
.arg(strCurve)
.arg(strCurve)
.arg(strInputs)
.arg(strOutputs);
out.write(str.toLatin1().constData());
}
out.close();
exit(1);
#else
QFETCH(int, type);
QFETCH(IntList, at);
QFETCH(RealList, expected);
QEasingCurve curve((QEasingCurve::Type)type);
// in theory the baseline should't have an error of more than 0.00005 due to how its rounded,
// but due to FP imprecision, we have to adjust the error a bit more.
const qreal errorBound = 0.00006;
for (int i = 0; i < at.size(); ++i) {
const qreal ex = expected.at(i);
const qreal error = qAbs(ex - curve.valueForProgress(at.at(i)/qreal(100)));
QVERIFY(error <= errorBound);
}
if (type != QEasingCurve::SineCurve && type != QEasingCurve::CosineCurve) {
QVERIFY( !(curve.valueForProgress(0) > 0) );
QVERIFY( !(curve.valueForProgress(1) < 1) );
}
#endif
}
static qreal discreteEase(qreal progress)
{
return qFloor(progress * 10) / qreal(10.0);
}
void tst_QEasingCurve::setCustomType()
{
QEasingCurve curve;
curve.setCustomType(&discreteEase);
QCOMPARE(curve.type(), QEasingCurve::Custom);
QCOMPARE(curve.valueForProgress(0.0), 0.0);
QCOMPARE(curve.valueForProgress(0.05), 0.0);
QCOMPARE(curve.valueForProgress(0.10), 0.1);
QCOMPARE(curve.valueForProgress(0.15), 0.1);
QCOMPARE(curve.valueForProgress(0.20), 0.2);
QCOMPARE(curve.valueForProgress(0.25), 0.2);
// QTBUG-69947, MinGW 7.3, 8.1 x86 returns 0.2
#if defined(Q_CC_MINGW)
#if !defined(__GNUC__) || defined(__MINGW64__)
QCOMPARE(curve.valueForProgress(0.30), 0.3);
#endif
#endif
QCOMPARE(curve.valueForProgress(0.35), 0.3);
QCOMPARE(curve.valueForProgress(0.999999), 0.9);
curve.setType(QEasingCurve::Linear);
QCOMPARE(curve.type(), QEasingCurve::Linear);
QCOMPARE(curve.valueForProgress(0.0), 0.0);
QCOMPARE(curve.valueForProgress(0.1), 0.1);
QCOMPARE(curve.valueForProgress(0.5), 0.5);
QCOMPARE(curve.valueForProgress(0.99), 0.99);
}
void tst_QEasingCurve::operators()
{
{ // member-swap()
QEasingCurve ec1, ec2;
ec2.setCustomType(&discreteEase);
ec1.swap(ec2);
QCOMPARE(ec1.type(), QEasingCurve::Custom);
}
// operator=
QEasingCurve curve;
QEasingCurve curve2;
curve.setCustomType(&discreteEase);
curve2 = curve;
QCOMPARE(curve2.type(), QEasingCurve::Custom);
QCOMPARE(curve2.valueForProgress(0.0), 0.0);
QCOMPARE(curve2.valueForProgress(0.05), 0.0);
QCOMPARE(curve2.valueForProgress(0.15), 0.1);
QCOMPARE(curve2.valueForProgress(0.25), 0.2);
QCOMPARE(curve2.valueForProgress(0.35), 0.3);
QCOMPARE(curve2.valueForProgress(0.999999), 0.9);
// operator==
curve.setType(QEasingCurve::InBack);
curve2 = curve;
curve2.setOvershoot(qreal(1.70158));
QCOMPARE(curve.overshoot(), curve2.overshoot());
QVERIFY(curve2 == curve);
curve.setOvershoot(3.0);
QVERIFY(curve2 != curve);
curve2.setOvershoot(3.0);
QVERIFY(curve2 == curve);
curve2.setType(QEasingCurve::Linear);
QCOMPARE(curve.overshoot(), curve2.overshoot());
QVERIFY(curve2 != curve);
curve2.setType(QEasingCurve::InBack);
QCOMPARE(curve.overshoot(), curve2.overshoot());
QVERIFY(curve2 == curve);
QEasingCurve curve3;
QEasingCurve curve4;
curve4.setAmplitude(curve4.amplitude());
QEasingCurve curve5;
curve5.setAmplitude(0.12345);
QVERIFY(curve3 == curve4); // default value and not assigned
QVERIFY(curve3 != curve5); // unassinged and other value
QVERIFY(curve4 != curve5);
}
class tst_QEasingProperties : public QObject
{
Q_OBJECT
Q_PROPERTY(QEasingCurve easing READ easing WRITE setEasing)
public:
tst_QEasingProperties(QObject *parent = nullptr) : QObject(parent) {}
QEasingCurve easing() const { return e; }
void setEasing(const QEasingCurve& value) { e = value; }
private:
QEasingCurve e;
};
// Test getting and setting easing properties via the metaobject system.
void tst_QEasingCurve::properties()
{
tst_QEasingProperties obj;
QEasingCurve inOutBack(QEasingCurve::InOutBack);
qreal overshoot = 1.5;
inOutBack.setOvershoot(overshoot);
qreal amplitude = inOutBack.amplitude();
qreal period = inOutBack.period();
obj.setEasing(inOutBack);
QEasingCurve easing = qvariant_cast<QEasingCurve>(obj.property("easing"));
QCOMPARE(easing.type(), QEasingCurve::InOutBack);
QCOMPARE(easing.overshoot(), overshoot);
QCOMPARE(easing.amplitude(), amplitude);
QCOMPARE(easing.period(), period);
QEasingCurve linear(QEasingCurve::Linear);
overshoot = linear.overshoot();
amplitude = linear.amplitude();
period = linear.period();
obj.setProperty("easing",
QVariant::fromValue(QEasingCurve(QEasingCurve::Linear)));
easing = qvariant_cast<QEasingCurve>(obj.property("easing"));
QCOMPARE(easing.type(), QEasingCurve::Linear);
QCOMPARE(easing.overshoot(), overshoot);
QCOMPARE(easing.amplitude(), amplitude);
QCOMPARE(easing.period(), period);
}
void tst_QEasingCurve::metaTypes()
{
QVERIFY(QMetaType::fromName("QEasingCurve").id() == QMetaType::QEasingCurve);
QCOMPARE(QByteArray(QMetaType(QMetaType::QEasingCurve).name()), QByteArray("QEasingCurve"));
QVERIFY(QMetaType::isRegistered(QMetaType::QEasingCurve));
QVERIFY(qMetaTypeId<QEasingCurve>() == QMetaType::QEasingCurve);
}
/*
Test to ensure that regardless of what order properties are set, they should produce the same
behavior.
*/
void tst_QEasingCurve::propertyOrderIsNotImportant()
{
QEasingCurve c1;
c1.setPeriod(1);
c1.setType(QEasingCurve::OutSine);
QVERIFY(c1.valueForProgress(0.75) > 0.9);
QEasingCurve c2;
c2.setType(QEasingCurve::OutSine);
c2.setPeriod(1);
QCOMPARE(c1.valueForProgress(0.75), c2.valueForProgress(0.75));
}
void tst_QEasingCurve::bezierSpline_data()
{
QTest::addColumn<QString>("definition");
QTest::addColumn<IntList>("at");
QTest::addColumn<RealList>("expected");
QTest::newRow("EasingCurve") << QString::fromLatin1("0.2,0 0.6,0.09 0.7,1.0 0.7,0.97 0.74,0.96 0.74,0.95 0.81,0.97 0.9,0.97 1,1")
<< (IntList() << 0 << 70 << 74 << 100)
<< (RealList() << 0.0000 << 1.0000 << 0.9500 << 1.0000);
//This curve is likely to be numerical instable
QTest::newRow("NastyCurve") << QString::fromLatin1("0.2,0.2 0.126667,0.646667 0.2,0.8 0.624,0.984 0.930667,0.946667 1,1")
<< (IntList() << 0 << 20 << 30 << 50 << 75 << 100)
<< (RealList() << 0.0000 << 0.8000 << 0.8402 << 0.9029 << 0.9515 << 1.0000);
QTest::newRow("ComplexCurve") << QString::fromLatin1("0,0.47174849 0.17393079,0.35634291 0.18950309,0.47179766 0.2487779,0.91126755 "
"0.27029205,-0.11275513 0.33421971,0.12062718 0.41170105,-0.10157488 0.4140625,0.16796875 "
"0.4140625,0.16796875 0.4140625,0.16796875 0.59658877,0.36978503 0.67931151,0.89255893 0.711253,0.44658283 "
"0.88203125,0.43671875 0.88203125,0.43671875 0.86087213,0.78786873 0.99609375,0.4921875 1,1")
<< (IntList() << 0 << 15 << 20 << 30 << 40 << 70 << 50 << 80 << 100)
<< (RealList() << 0.0000 << 0.4134 << 0.5367 << 0.1107 << 0.0505 << 0.7299 << 0.3030 << 0.4886 << 1.0000);
}
static inline void setupBezierSpline(QEasingCurve *easingCurve, const QString &string)
{
QStringList pointStr = string.split(QLatin1Char(' '));
QList<QPointF> points;
foreach (const QString &str, pointStr) {
QStringList coordStr = str.split(QLatin1Char(','));
QPointF point(coordStr.first().toDouble(), coordStr.last().toDouble());
points.append(point);
}
QVERIFY(points.size() % 3 == 0);
for (int i = 0; i < points.size() / 3; i++) {
QPointF c1 = points.at(i * 3);
QPointF c2 = points.at(i * 3 + 1);
QPointF p1 = points.at(i * 3 + 2);
easingCurve->addCubicBezierSegment(c1, c2, p1);
}
}
void tst_QEasingCurve::bezierSpline()
{
QFETCH(QString, definition);
QFETCH(IntList, at);
QFETCH(RealList, expected);
QEasingCurve bezierEasingCurve(QEasingCurve::BezierSpline);
setupBezierSpline(&bezierEasingCurve, definition);
const qreal errorBound = 0.002;
for (int i = 0; i < at.size(); ++i) {
const qreal ex = expected.at(i);
const qreal value = bezierEasingCurve.valueForProgress(at.at(i)/qreal(100));
const qreal error = qAbs(ex - value);
if (error > errorBound)
QCOMPARE(value, ex);
QVERIFY(error <= errorBound);
}
QVERIFY( !(bezierEasingCurve.valueForProgress(0) > 0) );
QVERIFY( !(bezierEasingCurve.valueForProgress(1) < 1) );
}
void tst_QEasingCurve::tcbSpline_data()
{
QTest::addColumn<QString>("definition");
QTest::addColumn<IntList>("at");
QTest::addColumn<RealList>("expected");
QTest::newRow("NegativeCurved") << QString::fromLatin1("0.0,0.0,0,0,0 0.4,0.8,0.0,1,0.0 1.0,1.0,0.0,0.0,0")
<< (IntList() << 0 << 66 << 73 << 100)
<< (RealList() << 0.0000 << 0.9736 << 0.9774 << 1.0000);
//This curve is likely to be numerical instable
QTest::newRow("Corner") << QString::fromLatin1("0.0,0.0,0,0,0 0.4,0.8,0.0,-1,0.0 1.0,1.0,0.0,0.0,0")
<< (IntList() << 0 << 20 << 30 << 50 << 75 << 100)
<< (RealList() << 0.0000 << 0.3999 << 0.5996 << 0.8334 << 0.9166 << 1.0000);
QTest::newRow("RoundCurve") << QString::fromLatin1("0.0,0.0,0,0,0 0.4,0.8,0.0,0,0.0 1.0,1.0,0.0,0.0,0")
<< (IntList() << 0 << 15 << 20 << 30 << 40 << 70 << 50 << 80 << 100)
<< (RealList() << 0.0000 << 0.3478 << 0.4663 << 0.6664 << 0.8000 << 0.9399 << 0.8746 << 0.9567 << 1.0000);
QTest::newRow("Bias") << QString::fromLatin1("0.0,0.0,0,0,0 0.4,0.8,0.1,0,1.0 1.0,1.0,0.0,0.0,0")
<< (IntList() << 0 << 15 << 20 << 30 << 40 << 70 << 50 << 80 << 100)
<< (RealList() << 0.0000 << 0.2999 << 0.3998 << 0.5997 << 0.8000 << 0.9676 << 0.9136 << 0.9725 << 1.0000);
}
static inline void setupTCBSpline(QEasingCurve *easingCurve, const QString &string)
{
QStringList pointStr = string.split(QLatin1Char(' '));
foreach (const QString &str, pointStr) {
QStringList coordStr = str.split(QLatin1Char(','));
Q_ASSERT(coordStr.size() == 5);
QPointF point(coordStr.first().toDouble(), coordStr.at(1).toDouble());
qreal t = coordStr.at(2).toDouble();
qreal c = coordStr.at(3).toDouble();
qreal b = coordStr.at(4).toDouble();
easingCurve->addTCBSegment(point, t, c ,b);
}
}
void tst_QEasingCurve::tcbSpline()
{
QFETCH(QString, definition);
QFETCH(IntList, at);
QFETCH(RealList, expected);
QEasingCurve tcbEasingCurve(QEasingCurve::TCBSpline);
setupTCBSpline(&tcbEasingCurve, definition);
const qreal errorBound = 0.002;
for (int i = 0; i < at.size(); ++i) {
const qreal ex = expected.at(i);
const qreal value = tcbEasingCurve.valueForProgress(at.at(i)/qreal(100));
const qreal error = qAbs(ex - value);
if (error > errorBound)
QCOMPARE(value, ex);
QVERIFY(error <= errorBound);
}
QVERIFY( !(tcbEasingCurve.valueForProgress(0) > 0) );
QVERIFY( !(tcbEasingCurve.valueForProgress(1) < 1) );
}
/*This is single precision code for a cubic root used inside the spline easing curve.
This code is tested here explicitly. See: qeasingcurve.cpp */
float static inline _fast_cbrt(float x)
{
union {
float f;
quint32 i;
} ux;
const unsigned int B1 = 709921077;
ux.f = x;
ux.i = (ux.i / 3 + B1);
return ux.f;
}
/*This is double precision code for a cubic root used inside the spline easing curve.
This code is tested here explicitly. See: qeasingcurve.cpp */
double static inline _fast_cbrt(double d)
{
union {
double d;
quint32 pt[2];
} ut, ux;
const unsigned int B1 = 715094163;
#if Q_BYTE_ORDER == Q_LITTLE_ENDIAN
const int h0 = 1;
#else
const int h0 = 0;
#endif
ut.d = 0.0;
ux.d = d;
quint32 hx = ux.pt[h0]; //high word of d
ut.pt[h0] = hx/3 + B1;
return ut.d;
}
void tst_QEasingCurve::testCbrtDouble()
{
const double errorBound = 0.0001;
for (int i = 0; i < 100000; i++) {
double d = double(i) / 1000.0;
double t = _fast_cbrt(d);
const double t_cubic = t * t * t;
const double f = t_cubic + t_cubic + d;
if (f != 0.0)
t = t * (t_cubic + d + d) / f;
double expected = std::pow(d, 1.0/3.0);
const qreal error = qAbs(expected - t);
if (!(error < errorBound)) {
qWarning() << d;
qWarning() << error;
}
QVERIFY(error < errorBound);
}
}
void tst_QEasingCurve::testCbrtFloat()
{
const float errorBound = 0.0005f;
for (int i = 0; i < 100000; i++) {
float f = float(i) / 1000.0f;
float t = _fast_cbrt(f);
const float t_cubic = t * t * t;
const float fac = t_cubic + t_cubic + f;
if (fac != 0.0f)
t = t * (t_cubic + f + f) / fac;
float expected = std::pow(f, float(1.0/3.0));
const qreal error = qAbs(expected - t);
if (!(error < errorBound)) {
qWarning() << f;
qWarning() << error;
}
QVERIFY(error < errorBound);
}
}
void tst_QEasingCurve::cpp11()
{
{
QEasingCurve ec( QEasingCurve::InOutBack );
QEasingCurve copy = std::move(ec); // move ctor
QCOMPARE( copy.type(), QEasingCurve::InOutBack );
QVERIFY( *reinterpret_cast<void**>(&ec) == 0 );
}
{
QEasingCurve ec( QEasingCurve::InOutBack );
QEasingCurve copy;
const QEasingCurve::Type type = copy.type();
copy = std::move(ec); // move assignment op
QCOMPARE( copy.type(), QEasingCurve::InOutBack );
QCOMPARE( ec.type(), type );
}
}
void tst_QEasingCurve::quadraticEquation() {
// We find the value for a given time by solving a cubic equation.
// ax^3 + bx^2 + cx + d = 0
// However, the solver also needs to take care of cases where a = 0,
// b = 0 or c = 0, and the equation becomes quadratic, linear or invalid.
// A naive cubic solver might divide by zero and return nan, even
// when the solution is a real number.
// This test should triggers those cases.
{
// If the control points are spaced 1/3 apart of the distance of the
// start- and endpoint, the equation becomes linear.
QEasingCurve test(QEasingCurve::BezierSpline);
const qreal p1 = 1.0 / 3.0;
const qreal p2 = 1.0 - 1.0 / 3.0;
const qreal p3 = 1.0;
test.addCubicBezierSegment(QPointF(p1, 0.0), QPointF(p2, 1.0), QPointF(p3, 1.0));
QVERIFY(qAbs(test.valueForProgress(0.25) - 0.15625) < 1e-6);
QVERIFY(qAbs(test.valueForProgress(0.5) - 0.5) < 1e-6);
QVERIFY(qAbs(test.valueForProgress(0.75) - 0.84375) < 1e-6);
}
{
// If both the start point and the first control point
// are placed a 0.0, and the second control point is
// placed at 1/3, we get a case where a = 0 and b != 0
// i.e. a quadratic equation.
QEasingCurve test(QEasingCurve::BezierSpline);
const qreal p1 = 0.0;
const qreal p2 = 1.0 / 3.0;
const qreal p3 = 1.0;
test.addCubicBezierSegment(QPointF(p1, 0.0), QPointF(p2, 1.0), QPointF(p3, 1.0));
QVERIFY(qAbs(test.valueForProgress(0.25) - 0.5) < 1e-6);
QVERIFY(qAbs(test.valueForProgress(0.5) - 0.792893) < 1e-6);
QVERIFY(qAbs(test.valueForProgress(0.75) - 0.950962) < 1e-6);
}
{
// If both the start point and the first control point
// are placed a 0.0, and the second control point is
// placed close to 1/3, we get a case where a = ~0 and b != 0.
// It's not truly a quadratic equation, but should be treated
// as one, because it causes some cubic solvers to fail.
QEasingCurve test(QEasingCurve::BezierSpline);
const qreal p1 = 0.0;
const qreal p2 = 1.0 / 3.0 + 1e-6;
const qreal p3 = 1.0;
test.addCubicBezierSegment(QPointF(p1, 0.0), QPointF(p2, 1.0), QPointF(p3, 1.0));
QVERIFY(qAbs(test.valueForProgress(0.25) - 0.499999) < 1e-6);
QVERIFY(qAbs(test.valueForProgress(0.5) - 0.792892) < 1e-6);
QVERIFY(qAbs(test.valueForProgress(0.75) - 0.950961) < 1e-6);
}
{
// A bad case, where the segment is of zero length.
// However, it might still happen in user code,
// and we should return a sensible answer.
QEasingCurve test(QEasingCurve::BezierSpline);
const qreal p0 = 0.0;
const qreal p1 = p0;
const qreal p2 = p0;
const qreal p3 = p0;
test.addCubicBezierSegment(QPointF(p1, 0.0), QPointF(p2, 1.0), QPointF(p3, 1.0));
test.addCubicBezierSegment(QPointF(p3, 1.0), QPointF(1.0, 1.0), QPointF(1.0, 1.0));
QCOMPARE(test.valueForProgress(0.0), 0.0);
}
}
void tst_QEasingCurve::streamInOut_data()
{
QTest::addColumn<int>("version");
QTest::addColumn<bool>("equality");
QTest::newRow("5.11") << int(QDataStream::Qt_5_11) << false;
QTest::newRow("5.13") << int(QDataStream::Qt_5_13) << true;
}
void tst_QEasingCurve::streamInOut()
{
QFETCH(int, version);
QFETCH(bool, equality);
QEasingCurve orig;
orig.addCubicBezierSegment(QPointF(0.43, 0.0025), QPointF(0.38, 0.51), QPointF(0.57, 0.99));
QEasingCurve copy;
QByteArray data;
QDataStream dsw(&data,QIODevice::WriteOnly);
QDataStream dsr(&data,QIODevice::ReadOnly);
dsw.setVersion(version);
dsr.setVersion(version);
dsw << orig;
dsr >> copy;
QCOMPARE(copy == orig, equality);
}
QTEST_MAIN(tst_QEasingCurve)
#include "tst_qeasingcurve.moc"