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Diffstat (limited to 'examples/animation/research/photobrowser/riveritem.cpp')
| -rw-r--r-- | examples/animation/research/photobrowser/riveritem.cpp | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/examples/animation/research/photobrowser/riveritem.cpp b/examples/animation/research/photobrowser/riveritem.cpp new file mode 100644 index 0000000..9692d30 --- /dev/null +++ b/examples/animation/research/photobrowser/riveritem.cpp @@ -0,0 +1,125 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the QtCore module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "riveritem.h" +#include "river.h" + +RiverItem::RiverItem(QGraphicsItem *parent) : QGraphicsPixmapItem(parent), m_fullscreen(false) +{ + setCacheMode(DeviceCoordinateCache); +} + +RiverItem::~RiverItem() +{ +} + +void RiverItem::setPixmap(const QPixmap &pix) +{ + const QSize oldSize = pixmap().size(); + const QSize newSize = pix.size(); + QGraphicsPixmapItem::setPixmap(pix); + + if (newSize != oldSize) { + setOffset(-newSize.width()/2, -newSize.height()/2); + const qreal scaleFactor = qreal(River::fixedSize().height())/(qreal(pix.height()*7)); + setTransform(QTransform().scale(scaleFactor, scaleFactor)); + prepareGeometryChange(); + } +} + + +void RiverItem::setFullScreen(bool b, qreal originScaleFactor) +{ + if (m_fullscreen == b) + return; + + m_fullscreen = b; + + QPointF newPos; + qreal rotationZ; + qreal scaleX, scaleY; + + if (b) { + const QSizeF basePixmapSize = transform().map(boundingRect()).boundingRect().size(); + + newPos = parentItem()->boundingRect().center(); + rotationZ = 90; + scaleY = qreal(River::fixedSize().width()) / basePixmapSize.height() * yScale(); + scaleX = qreal(River::fixedSize().height()) / basePixmapSize.width() * xScale(); + + if (m_nonFSPos.isNull()) { + m_nonFSPos = pos(); //let's save our current (non fullscreen) position + } + + } else { + Q_ASSERT(!m_nonFSPos.isNull()); + rotationZ = 0; + scaleX = originScaleFactor; + scaleY = originScaleFactor; + newPos = m_nonFSPos; + } + + QAnimationGroup *group = new QParallelAnimationGroup(scene()); + QItemAnimation *anim = new QItemAnimation(this, QItemAnimation::Position); + anim->setEndValue(newPos); + group->addAnimation(anim); + anim = new QItemAnimation(this, QItemAnimation::RotationZ); + anim->setEndValue(rotationZ); + group->addAnimation(anim); + anim = new QItemAnimation(this, QItemAnimation::ScaleFactorX); + anim->setEndValue(scaleX); + group->addAnimation(anim); + anim = new QItemAnimation(this, QItemAnimation::ScaleFactorY); + anim->setEndValue(scaleY); + group->addAnimation(anim); + group->start(QAbstractAnimation::DeleteWhenStopped); +} + +void RiverItem::mousePressEvent(QGraphicsSceneMouseEvent*) +{ + //just let it rotate on itself + QItemAnimation *anim = new QItemAnimation(this, QItemAnimation::RotationY); + anim->setEndValue(yRotation() < 180 ? 360 : 0); + anim->setDuration(500); + anim->start(QAbstractAnimation::DeleteWhenStopped); +} + + |