135 lines
3.8 KiB
C++
135 lines
3.8 KiB
C++
////////////////////////////////////////////////////////////////////////
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// rotation.cpp //
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// //
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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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// //
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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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// //
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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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// //
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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, write to the Free Software //
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA //
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// 02110-1301 USA //
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/////////////////////////////////////////////////////////////////////////
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#include "rotation.h"
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#include <QGraphicsRotation>
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namespace Plasma
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{
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class RotationAnimationPrivate {
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public:
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/* TODO: check if the rotation object will be deleted
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* when the animation runs
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*/
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QGraphicsRotation *rotation;
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};
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RotationAnimation::RotationAnimation(const qint8 &reference, const Qt::Axis &axis, const qreal &angle)
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: d(new RotationAnimationPrivate)
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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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d->rotation = new QGraphicsRotation(this);
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}
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RotationAnimation::~RotationAnimation()
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{
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delete d;
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}
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QPropertyAnimation *RotationAnimation::render(QObject *parent)
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{
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Q_UNUSED(parent);
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QGraphicsWidget *m_object = widgetToAnimate();
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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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d->rotation->setOrigin(vector);
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d->rotation->setAxis(axis());
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QList<QGraphicsTransform *> transformation;
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transformation.append(d->rotation);
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m_object->setTransformations(transformation);
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QPropertyAnimation *rotationAnimation= new QPropertyAnimation(d->rotation,
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"angle", m_object);
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rotationAnimation->setEndValue(angle());
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rotationAnimation->setDuration(duration());
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return rotationAnimation;
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}
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}
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