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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
** of its contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef ANIMATION_H
#define ANIMATION_H
#include <QtGui>
#include <QtCore/qpropertyanimation.h>
class Animation : public QPropertyAnimation {
public:
enum PathType {
LinearPath,
CirclePath,
NPathTypes
};
Animation(QObject *target, const QByteArray &prop)
: QPropertyAnimation(target, prop)
{
setPathType(LinearPath);
}
void setPathType(PathType pathType)
{
if (pathType >= NPathTypes)
qWarning("Unknown pathType %d", pathType);
m_pathType = pathType;
m_path = QPainterPath();
}
void updateCurrentTime(int currentTime)
{
if (m_pathType == CirclePath) {
if (m_path.isEmpty()) {
QPointF to = endValue().toPointF();
QPointF from = startValue().toPointF();
m_path.moveTo(from);
m_path.addEllipse(QRectF(from, to));
}
int dura = duration();
const qreal progress = ((dura == 0) ? 1 : ((((currentTime - 1) % dura) + 1) / qreal(dura)));
qreal easedProgress = easingCurve().valueForProgress(progress);
if (easedProgress > 1.0) {
easedProgress -= 1.0;
} else if (easedProgress < 0) {
easedProgress += 1.0;
}
QPointF pt = m_path.pointAtPercent(easedProgress);
updateCurrentValue(pt);
emit valueChanged(pt);
} else {
QPropertyAnimation::updateCurrentTime(currentTime);
}
}
QPainterPath m_path;
PathType m_pathType;
};
#endif // ANIMATION_H
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