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