diff options
Diffstat (limited to 'src/corelib/tools/qeasingcurve.cpp')
| -rw-r--r-- | src/corelib/tools/qeasingcurve.cpp | 134 |
1 files changed, 58 insertions, 76 deletions
diff --git a/src/corelib/tools/qeasingcurve.cpp b/src/corelib/tools/qeasingcurve.cpp index a3dd4d9a60..1bd9c5ebb9 100644 --- a/src/corelib/tools/qeasingcurve.cpp +++ b/src/corelib/tools/qeasingcurve.cpp @@ -1,7 +1,7 @@ /**************************************************************************** ** -** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal +** Copyright (C) 2015 The Qt Company Ltd. +** Contact: http://www.qt.io/licensing/ ** ** This file is part of the QtCore module of the Qt Toolkit. ** @@ -10,9 +10,9 @@ ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/contact-us. +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see http://www.qt.io/terms-conditions. For further +** information use the contact form at http://www.qt.io/contact-us. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser @@ -23,8 +23,8 @@ ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. ** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception +** As a special exception, The Qt Company gives you certain additional +** rights. These rights are described in The Qt Company LGPL Exception ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. ** ** $QT_END_LICENSE$ @@ -347,9 +347,7 @@ typedef QVector<TCBPoint> TCBPoints; class QEasingCurveFunction { public: - enum Type { In, Out, InOut, OutIn }; - - QEasingCurveFunction(QEasingCurveFunction::Type type = In, qreal period = 0.3, qreal amplitude = 1.0, + QEasingCurveFunction(QEasingCurve::Type type, qreal period = 0.3, qreal amplitude = 1.0, qreal overshoot = 1.70158) : _t(type), _p(period), _a(amplitude), _o(overshoot) { } @@ -358,7 +356,7 @@ public: virtual QEasingCurveFunction *copy() const; bool operator==(const QEasingCurveFunction &other) const; - Type _t; + QEasingCurve::Type _t; qreal _p; qreal _a; qreal _o; @@ -367,9 +365,12 @@ public: }; +static QEasingCurve::EasingFunction curveToFunc(QEasingCurve::Type curve); + qreal QEasingCurveFunction::value(qreal t) { - return t; + QEasingCurve::EasingFunction func = curveToFunc(_t); + return func(t); } QEasingCurveFunction *QEasingCurveFunction::copy() const @@ -430,8 +431,8 @@ struct BezierEase : public QEasingCurveFunction bool _init; bool _valid; - BezierEase() - : QEasingCurveFunction(InOut), _curves(10), _intervals(10), _init(false), _valid(false) + BezierEase(QEasingCurve::Type type = QEasingCurve::BezierSpline) + : QEasingCurveFunction(type), _curves(10), _intervals(10), _init(false), _valid(false) { } void init() @@ -488,7 +489,7 @@ struct BezierEase : public QEasingCurveFunction } } - QEasingCurveFunction *copy() const + QEasingCurveFunction *copy() const Q_DECL_OVERRIDE { BezierEase *rv = new BezierEase(); rv->_t = _t; @@ -524,7 +525,7 @@ struct BezierEase : public QEasingCurveFunction return newT; } - qreal value(qreal x) + qreal value(qreal x) Q_DECL_OVERRIDE { Q_ASSERT(_bezierCurves.count() % 3 == 0); @@ -656,7 +657,7 @@ struct BezierEase : public QEasingCurveFunction qreal static inline _acos(qreal x) { - return sqrt(1-x)*(1.5707963267948966192313216916398f + x*(-0.213300989f + x*(0.077980478f + x*-0.02164095f))); + return std::sqrt(1-x)*(1.5707963267948966192313216916398f + x*(-0.213300989f + x*(0.077980478f + x*-0.02164095f))); } qreal static inline _cos(qreal x) //super fast _cos @@ -703,8 +704,8 @@ struct BezierEase : public QEasingCurveFunction //We use approximations instead const qreal x_squared = x * x; - const qreal x_plus_one_sqrt = sqrt(1.0 + x); - const qreal one_minus_x_sqrt = sqrt(1.0 - x); + const qreal x_plus_one_sqrt = qSqrt(1.0 + x); + const qreal one_minus_x_sqrt = qSqrt(1.0 - x); //cos(acos(x) / 3) //s1 = _cos(_acos(x) / 3); @@ -742,7 +743,7 @@ struct BezierEase : public QEasingCurveFunction const qreal D = 0.25 * q_squared + p_cubic / 27.0; if (D >= 0) { - const qreal D_sqrt = sqrt(D); + const qreal D_sqrt = qSqrt(D); qreal u = _cbrt( -q * 0.5 + D_sqrt); qreal v = _cbrt( -q * 0.5 - D_sqrt); qreal z1 = u + v; @@ -757,13 +758,13 @@ struct BezierEase : public QEasingCurveFunction } //casus irreducibilis - const qreal p_minus_sqrt = sqrt(-p); + const qreal p_minus_sqrt = qSqrt(-p); //const qreal f = sqrt(4.0 / 3.0 * -p); - const qreal f = sqrt(4.0 / 3.0) * p_minus_sqrt; + const qreal f = qSqrt(4.0 / 3.0) * p_minus_sqrt; //const qreal sqrtP = sqrt(27.0 / -p_cubic); - const qreal sqrtP = -3.0*sqrt(3.0) / (p_minus_sqrt * p); + const qreal sqrtP = -3.0*qSqrt(3.0) / (p_minus_sqrt * p); const qreal g = -q * 0.5 * sqrtP; @@ -814,7 +815,11 @@ struct BezierEase : public QEasingCurveFunction struct TCBEase : public BezierEase { - qreal value(qreal x) + TCBEase() + : BezierEase(QEasingCurve::TCBSpline) + { } + + qreal value(qreal x) Q_DECL_OVERRIDE { Q_ASSERT(_bezierCurves.count() % 3 == 0); @@ -830,11 +835,11 @@ struct TCBEase : public BezierEase struct ElasticEase : public QEasingCurveFunction { - ElasticEase(Type type) + ElasticEase(QEasingCurve::Type type) : QEasingCurveFunction(type, qreal(0.3), qreal(1.0)) { } - QEasingCurveFunction *copy() const + QEasingCurveFunction *copy() const Q_DECL_OVERRIDE { ElasticEase *rv = new ElasticEase(_t); rv->_p = _p; @@ -844,18 +849,18 @@ struct ElasticEase : public QEasingCurveFunction return rv; } - qreal value(qreal t) + qreal value(qreal t) Q_DECL_OVERRIDE { qreal p = (_p < 0) ? qreal(0.3) : _p; qreal a = (_a < 0) ? qreal(1.0) : _a; switch(_t) { - case In: + case QEasingCurve::InElastic: return easeInElastic(t, a, p); - case Out: + case QEasingCurve::OutElastic: return easeOutElastic(t, a, p); - case InOut: + case QEasingCurve::InOutElastic: return easeInOutElastic(t, a, p); - case OutIn: + case QEasingCurve::OutInElastic: return easeOutInElastic(t, a, p); default: return t; @@ -865,11 +870,11 @@ struct ElasticEase : public QEasingCurveFunction struct BounceEase : public QEasingCurveFunction { - BounceEase(Type type) + BounceEase(QEasingCurve::Type type) : QEasingCurveFunction(type, qreal(0.3), qreal(1.0)) { } - QEasingCurveFunction *copy() const + QEasingCurveFunction *copy() const Q_DECL_OVERRIDE { BounceEase *rv = new BounceEase(_t); rv->_a = _a; @@ -878,17 +883,17 @@ struct BounceEase : public QEasingCurveFunction return rv; } - qreal value(qreal t) + qreal value(qreal t) Q_DECL_OVERRIDE { qreal a = (_a < 0) ? qreal(1.0) : _a; switch(_t) { - case In: + case QEasingCurve::InBounce: return easeInBounce(t, a); - case Out: + case QEasingCurve::OutBounce: return easeOutBounce(t, a); - case InOut: + case QEasingCurve::InOutBounce: return easeInOutBounce(t, a); - case OutIn: + case QEasingCurve::OutInBounce: return easeOutInBounce(t, a); default: return t; @@ -898,11 +903,11 @@ struct BounceEase : public QEasingCurveFunction struct BackEase : public QEasingCurveFunction { - BackEase(Type type) + BackEase(QEasingCurve::Type type) : QEasingCurveFunction(type, qreal(0.3), qreal(1.0), qreal(1.70158)) { } - QEasingCurveFunction *copy() const + QEasingCurveFunction *copy() const Q_DECL_OVERRIDE { BackEase *rv = new BackEase(_t); rv->_o = _o; @@ -911,17 +916,17 @@ struct BackEase : public QEasingCurveFunction return rv; } - qreal value(qreal t) + qreal value(qreal t) Q_DECL_OVERRIDE { qreal o = (_o < 0) ? qreal(1.70158) : _o; switch(_t) { - case In: + case QEasingCurve::InBack: return easeInBack(t, o); - case Out: + case QEasingCurve::OutBack: return easeOutBack(t, o); - case InOut: + case QEasingCurve::InOutBack: return easeInOutBack(t, o); - case OutIn: + case QEasingCurve::OutInBack: return easeOutInBack(t, o); default: return t; @@ -1006,55 +1011,31 @@ static QEasingCurve::EasingFunction curveToFunc(QEasingCurve::Type curve) static QEasingCurveFunction *curveToFunctionObject(QEasingCurve::Type type) { - QEasingCurveFunction *curveFunc = 0; switch(type) { case QEasingCurve::InElastic: - curveFunc = new ElasticEase(ElasticEase::In); - break; case QEasingCurve::OutElastic: - curveFunc = new ElasticEase(ElasticEase::Out); - break; case QEasingCurve::InOutElastic: - curveFunc = new ElasticEase(ElasticEase::InOut); - break; case QEasingCurve::OutInElastic: - curveFunc = new ElasticEase(ElasticEase::OutIn); - break; + return new ElasticEase(type); case QEasingCurve::OutBounce: - curveFunc = new BounceEase(BounceEase::Out); - break; case QEasingCurve::InBounce: - curveFunc = new BounceEase(BounceEase::In); - break; case QEasingCurve::OutInBounce: - curveFunc = new BounceEase(BounceEase::OutIn); - break; case QEasingCurve::InOutBounce: - curveFunc = new BounceEase(BounceEase::InOut); - break; + return new BounceEase(type); case QEasingCurve::InBack: - curveFunc = new BackEase(BackEase::In); - break; case QEasingCurve::OutBack: - curveFunc = new BackEase(BackEase::Out); - break; case QEasingCurve::InOutBack: - curveFunc = new BackEase(BackEase::InOut); - break; case QEasingCurve::OutInBack: - curveFunc = new BackEase(BackEase::OutIn); - break; + return new BackEase(type); case QEasingCurve::BezierSpline: - curveFunc = new BezierEase(); - break; + return new BezierEase; case QEasingCurve::TCBSpline: - curveFunc = new TCBEase(); - break; + return new TCBEase; default: - curveFunc = new QEasingCurveFunction(QEasingCurveFunction::In, qreal(0.3), qreal(1.0), qreal(1.70158)); + return new QEasingCurveFunction(type, qreal(0.3), qreal(1.0), qreal(1.70158)); } - return curveFunc; + return 0; } /*! @@ -1436,6 +1417,7 @@ qreal QEasingCurve::valueForProgress(qreal progress) const #ifndef QT_NO_DEBUG_STREAM QDebug operator<<(QDebug debug, const QEasingCurve &item) { + QDebugStateSaver saver(debug); debug << "type:" << item.d_ptr->type << "func:" << item.d_ptr->func; if (item.d_ptr->config) { |