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/*
Copyright (C) 2009 Igor Trindade Oliveira <igor.oliveira@indt.org.br>
Copyright (C) 2009 Adenilson Cavalcanti <adenilson.silva@idnt.org.br>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <QGraphicsRotation>
#include <QEasingCurve>
#include <QVector3D>
#include "kdebug.h"
#include "rotation_p.h"
namespace Plasma
{
RotationAnimation::RotationAnimation(QObject *parent, qint8 reference, Qt::Axis axis, qreal angle)
: EasingAnimation(parent),
m_rotation(new QGraphicsRotation(this)),
m_angle(angle),
m_axis(axis),
m_reference(reference)
{
}
RotationAnimation::~RotationAnimation()
{
}
Qt::Axis RotationAnimation::axis() const
{
return m_axis;
}
void RotationAnimation::setAxis(const Qt::Axis &axis)
{
m_axis = axis;
}
qint8 RotationAnimation::reference() const
{
return m_reference;
}
void RotationAnimation::setReference(const qint8 &reference)
{
m_reference = reference;
}
qreal RotationAnimation::angle() const
{
return m_angle;
}
void RotationAnimation::setAngle(const qreal &angle)
{
m_angle = angle;
}
void RotationAnimation::updateState(QAbstractAnimation::State newState, QAbstractAnimation::State oldState)
{
Q_UNUSED(newState)
Q_UNUSED(oldState)
QGraphicsWidget *m_object = targetWidget();
if (!m_object) {
return;
}
QVector3D vector(0, 0, 0);
const qreal widgetWidth = m_object->size().width();
const qreal widgetHeight = m_object->size().height();
if (axis() == Qt::XAxis) {
switch (reference()) {
case Center:
vector.setX(widgetWidth/2);
vector.setY(widgetHeight/2);
break;
case Up:
vector.setX(widgetWidth/2);
vector.setY(0);
break;
case Down:
vector.setX(widgetWidth/2);
vector.setY(widgetHeight);
break;
}
} else if(axis() == Qt::YAxis) {
switch (reference()) {
case Center:
vector.setX(widgetWidth/2);
vector.setY(widgetHeight/2);
break;
case Left:
vector.setX(0);
vector.setY(widgetHeight/2);
break;
case Right:
vector.setX(widgetWidth);
vector.setY(widgetHeight/2);
break;
}
} else if (axis() == Qt::ZAxis) {
switch (reference()) {
case Center:
vector.setX(widgetWidth/2);
vector.setY(widgetHeight/2);
break;
case Center|Up:
vector.setX(widgetWidth/2);
vector.setY(0);
break;
case Center|Down:
vector.setX(widgetWidth/2);
vector.setY(widgetHeight);
break;
case Center|Left:
vector.setX(0);
vector.setY(widgetHeight/2);
break;
case Center|Right:
vector.setX(widgetWidth);
vector.setY(widgetHeight/2);
break;
}
}
m_rotation->setOrigin(vector);
m_rotation->setAxis(axis());
QList<QGraphicsTransform *> transformation;
transformation.append(m_rotation);
m_object->setTransformations(transformation);
}
void RotationAnimation::updateEffectiveTime(int currentTime)
{
if (targetWidget()) {
qreal delta = currentTime * angle() / qreal(duration());
m_rotation->setAngle(delta);
}
}
}
#include "rotation_p.moc"
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