6086b03de5
svn path=/trunk/KDE/kdelibs/; revision=1083081
213 lines
5.5 KiB
C++
213 lines
5.5 KiB
C++
/*
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Copyright (C) 2009 Igor Trindade Oliveira <igor.oliveira@indt.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 "rotationstacked_p.h"
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#include <QGraphicsRotation>
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#include <QSequentialAnimationGroup>
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#include <QWeakPointer>
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#include <kdebug.h>
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#include "stackedlayout.h"
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#include "plasma.h"
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namespace Plasma
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{
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const int RotationStackedAnimation::s_sideAngle = 90;
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RotationStackedAnimation::RotationStackedAnimation(QObject *parent)
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: Animation(parent)
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{
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m_backRotation = new QGraphicsRotation(this);
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m_frontRotation = new QGraphicsRotation(this);
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m_wLayout = new StackedLayout;
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}
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RotationStackedAnimation::~RotationStackedAnimation()
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{
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delete m_wLayout.data();
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}
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void RotationStackedAnimation::setMovementDirection(const qint8 &direction)
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{
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m_animDirection = static_cast<MovementDirection>(direction);
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QVector3D animDirection(0, 0, 0);
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switch (m_animDirection) {
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case MoveLeft:
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animDirection.setY(-1);
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break;
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case MoveRight:
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animDirection.setY(1);
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break;
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case MoveAny:
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case MoveUp:
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animDirection.setX(1);
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break;
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case MoveDown:
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animDirection.setX(-1);
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break;
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case MoveUpLeft:
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animDirection.setX(1);
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animDirection.setY(-1);
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break;
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case MoveUpRight:
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animDirection.setX(1);
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animDirection.setY(1);
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break;
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case MoveDownLeft:
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animDirection.setX(-1);
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animDirection.setY(-1);
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break;
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case MoveDownRight:
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animDirection.setX(-1);
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animDirection.setY(1);
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break;
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}
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m_frontRotation->setAxis(animDirection);
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m_backRotation->setAxis(animDirection);
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updateTransformations();
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}
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qint8 RotationStackedAnimation::movementDirection() const
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{
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return static_cast<qint8>(m_animDirection);
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}
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void RotationStackedAnimation::setReference(const qint8 &reference)
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{
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m_reference = reference;
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if (!targetWidget() || !backWidget()) {
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return;
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}
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const QSizeF transformArea = targetWidget()->size().expandedTo(backWidget()->size());
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QVector3D frontTransformOrigin(transformArea.width()/2, transformArea.height()/2, 0);
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QVector3D backTransformOrigin(transformArea.width()/2, transformArea.height()/2, 0);
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if ((m_reference & Left) == Left) {
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frontTransformOrigin.setX(0);
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backTransformOrigin.setX(0);
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} else if ((m_reference & Right) == Right) {
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frontTransformOrigin.setX(transformArea.width());
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backTransformOrigin.setX(transformArea.width());
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}
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if ((m_reference & Up) == Up) {
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frontTransformOrigin.setY(0);
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backTransformOrigin.setY(0);
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} else if ((m_reference & Down) == Down) {
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frontTransformOrigin.setY(transformArea.height());
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backTransformOrigin.setY(transformArea.height());
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}
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m_frontRotation->setOrigin(frontTransformOrigin);
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m_backRotation->setOrigin(backTransformOrigin);
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updateTransformations();
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}
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qint8 RotationStackedAnimation::reference() const
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{
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return m_reference;
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}
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QGraphicsWidget *RotationStackedAnimation::backWidget()
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{
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return m_backWidget.data();
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}
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void RotationStackedAnimation::setBackWidget(QGraphicsWidget *backWidget)
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{
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m_backWidget = backWidget;
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StackedLayout *layout = m_wLayout.data();
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if(targetWidget() && backWidget && layout) {
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layout->addWidget(targetWidget());
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layout->addWidget(backWidget);
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}
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}
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QGraphicsLayoutItem *RotationStackedAnimation::layout()
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{
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return m_wLayout.data();
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}
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void RotationStackedAnimation::updateState(QAbstractAnimation::State newState,
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QAbstractAnimation::State oldState)
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{
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if (oldState == Stopped && newState == Running) {
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setReference(reference());
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}
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}
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void RotationStackedAnimation::updateCurrentTime(int currentTime)
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{
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if (!targetWidget() || !backWidget()) {
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return;
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}
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StackedLayout *layout = m_wLayout.data();
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if (!layout) {
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return;
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}
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qreal delta;
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if (currentTime <= duration()/2) {
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layout->setCurrentWidgetIndex(0);
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delta = easingCurve().valueForProgress((currentTime*2) / qreal(duration()));
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delta *= s_sideAngle;
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m_frontRotation->setAngle(delta);
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} else {
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layout->setCurrentWidgetIndex(1);
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delta = 1 - easingCurve().valueForProgress(((currentTime*2) - duration()) / qreal(duration()));
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delta = -delta;
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delta *= s_sideAngle;
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m_backRotation->setAngle(delta);
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}
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}
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void RotationStackedAnimation::updateTransformations()
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{
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if (!targetWidget() || !backWidget()) {
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return;
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}
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QList<QGraphicsTransform *> frontTransformation;
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QList<QGraphicsTransform *> backTransformation;
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frontTransformation.append(m_frontRotation);
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backTransformation.append(m_backRotation);
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targetWidget()->setTransformations(frontTransformation);
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backWidget()->setTransformations(backTransformation);
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}
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}
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