95 lines
2.6 KiB
C++
95 lines
2.6 KiB
C++
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/****************************************************************************
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**
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the test suite module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "rectanimation.h"
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#include "dummyobject.h"
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static inline int interpolateInteger(int from, int to, qreal progress)
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{
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return from + (to - from) * progress;
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}
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RectAnimation::RectAnimation(DummyObject *obj) : m_object(obj), m_dura(250)
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{
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}
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void RectAnimation::setEndValue(const QRect &rect)
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{
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m_end = rect;
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}
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void RectAnimation::setStartValue(const QRect &rect)
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{
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m_start = rect;
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}
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void RectAnimation::setDuration(int d)
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{
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m_dura = d;
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}
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int RectAnimation::duration() const
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{
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return m_dura;
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}
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void RectAnimation::updateCurrentTime(int currentTime)
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{
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qreal progress = m_easing.valueForProgress( currentTime / qreal(m_dura) );
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QRect now;
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now.setCoords(interpolateInteger(m_start.left(), m_end.left(), progress),
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interpolateInteger(m_start.top(), m_end.top(), progress),
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interpolateInteger(m_start.right(), m_end.right(), progress),
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interpolateInteger(m_start.bottom(), m_end.bottom(), progress));
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bool changed = (now != m_current);
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if (changed)
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m_current = now;
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if (state() == Stopped)
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return;
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if (m_object)
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m_object->setRect(m_current);
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}
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