diff options
Diffstat (limited to 'src/corelib/animation/qvariantanimation_p.h')
-rw-r--r-- | src/corelib/animation/qvariantanimation_p.h | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/src/corelib/animation/qvariantanimation_p.h b/src/corelib/animation/qvariantanimation_p.h new file mode 100644 index 0000000000..2a8d9d4f07 --- /dev/null +++ b/src/corelib/animation/qvariantanimation_p.h @@ -0,0 +1,124 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtCore module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QANIMATION_P_H +#define QANIMATION_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists for the convenience +// of QIODevice. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include "qvariantanimation.h" +#include <QtCore/qeasingcurve.h> +#include <QtCore/qmetaobject.h> +#include <QtCore/qvector.h> + +#include "private/qabstractanimation_p.h" + +#ifndef QT_NO_ANIMATION + +QT_BEGIN_NAMESPACE + +class QVariantAnimationPrivate : public QAbstractAnimationPrivate +{ + Q_DECLARE_PUBLIC(QVariantAnimation) +public: + + QVariantAnimationPrivate(); + + static QVariantAnimationPrivate *get(QVariantAnimation *q) + { + return q->d_func(); + } + + void setDefaultStartEndValue(const QVariant &value); + + + QVariant currentValue; + QVariant defaultStartEndValue; + + //this is used to keep track of the KeyValue interval in which we currently are + struct + { + QVariantAnimation::KeyValue start, end; + } currentInterval; + + QEasingCurve easing; + int duration; + QVariantAnimation::KeyValues keyValues; + QVariantAnimation::Interpolator interpolator; + + void setCurrentValueForProgress(const qreal progress); + void recalculateCurrentInterval(bool force=false); + void setValueAt(qreal, const QVariant &); + QVariant valueAt(qreal step) const; + void convertValues(int t); + + void updateInterpolator(); + + //XXX this is needed by dui + static Q_CORE_EXPORT QVariantAnimation::Interpolator getInterpolator(int interpolationType); +}; + +//this should make the interpolation faster +template<typename T> inline T _q_interpolate(const T &f, const T &t, qreal progress) +{ + return T(f + (t - f) * progress); +} + +template<typename T > inline QVariant _q_interpolateVariant(const T &from, const T &to, qreal progress) +{ + return _q_interpolate(from, to, progress); +} + + +QT_END_NAMESPACE + +#endif //QT_NO_ANIMATION + +#endif //QANIMATION_P_H |