diff options
| -rw-r--r-- | src/corelib/tools/qeasingcurve.cpp | 12 | ||||
| -rw-r--r-- | tests/auto/corelib/tools/qeasingcurve/tst_qeasingcurve.cpp | 11 |
2 files changed, 23 insertions, 0 deletions
diff --git a/src/corelib/tools/qeasingcurve.cpp b/src/corelib/tools/qeasingcurve.cpp index 2ae63fe135..52c8d13fe3 100644 --- a/src/corelib/tools/qeasingcurve.cpp +++ b/src/corelib/tools/qeasingcurve.cpp @@ -583,6 +583,13 @@ struct BezierEase : public QEasingCurveFunction qWarning("QEasingCurve: Invalid bezier curve"); return x; } + + // The bezier computation is not always precise on the endpoints, so handle explicitly + if (!(x > 0)) + return 0; + if (!(x < 1)) + return 1; + SingleCubicBezier *singleCubicBezier = 0; getBezierSegment(singleCubicBezier, x); @@ -998,6 +1005,11 @@ struct BackEase : public QEasingCurveFunction qreal value(qreal t) override { + // The *Back() functions are not always precise on the endpoints, so handle explicitly + if (!(t > 0)) + return 0; + if (!(t < 1)) + return 1; qreal o = (_o < 0) ? qreal(1.70158) : _o; switch(_t) { case QEasingCurve::InBack: diff --git a/tests/auto/corelib/tools/qeasingcurve/tst_qeasingcurve.cpp b/tests/auto/corelib/tools/qeasingcurve/tst_qeasingcurve.cpp index 3af6132695..2a9c1e1e41 100644 --- a/tests/auto/corelib/tools/qeasingcurve/tst_qeasingcurve.cpp +++ b/tests/auto/corelib/tools/qeasingcurve/tst_qeasingcurve.cpp @@ -404,6 +404,11 @@ void tst_QEasingCurve::valueForProgress() 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 } @@ -632,6 +637,9 @@ void tst_QEasingCurve::bezierSpline() QCOMPARE(value, ex); QVERIFY(error <= errorBound); } + + QVERIFY( !(bezierEasingCurve.valueForProgress(0) > 0) ); + QVERIFY( !(bezierEasingCurve.valueForProgress(1) < 1) ); } void tst_QEasingCurve::tcbSpline_data() @@ -691,6 +699,9 @@ void tst_QEasingCurve::tcbSpline() 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. |