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Diffstat (limited to 'src/declarative/fx/qfxanimatedimageitem.cpp')
| -rw-r--r-- | src/declarative/fx/qfxanimatedimageitem.cpp | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/src/declarative/fx/qfxanimatedimageitem.cpp b/src/declarative/fx/qfxanimatedimageitem.cpp new file mode 100644 index 0000000..cc11b56 --- /dev/null +++ b/src/declarative/fx/qfxanimatedimageitem.cpp @@ -0,0 +1,211 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the QtDeclarative 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 <QMovie> +#include <QtDeclarative/qmlcontext.h> +#include <QtDeclarative/qmlengine.h> +#include "qfxanimatedimageitem.h" +#include "qfxanimatedimageitem_p.h" +#include <QNetworkRequest> +#include <QNetworkReply> + +QT_BEGIN_NAMESPACE + +/*! + \class QFxAnimatedImageItem + \internal +*/ + +/*! + \qmlclass AnimatedImage + \inherits Image + + This item provides for playing animations stored as images containing a series of frames, + such as GIF files. The full list of supported formats can be determined with + QMovie::supportedFormats(). + + \table + \row + \o \image animatedimageitem.gif + \o + \code +<Item width="{anim.width}" height="{anim.height+8}"> + <AnimatedImage id="anim" file="pics/games-anim.gif"/> + <Rect color="red" width="4" height="8" y="{anim.height}" + x="{(anim.width-width)*anim.currentFrame/(anim.frameCount-1)}"/> +</Item> + \endcode + \endtable +*/ +QML_DEFINE_TYPE(QFxAnimatedImageItem, AnimatedImage); + +QFxAnimatedImageItem::QFxAnimatedImageItem(QFxItem *parent) + : QFxImage(*(new QFxAnimatedImageItemPrivate), parent) +{ +} + +QFxAnimatedImageItem::QFxAnimatedImageItem(QFxAnimatedImageItemPrivate &dd, QFxItem *parent) + : QFxImage(dd, parent) +{ +} + +QFxAnimatedImageItem::~QFxAnimatedImageItem() +{ + Q_D(QFxAnimatedImageItem); + delete d->_movie; +} + +/*! + \qmlproperty bool AnimatedImage::playing + This property holds whether the animated image is playing or not + + Defaults to true, so as to start playing immediately. +*/ +bool QFxAnimatedImageItem::isPlaying() const +{ + Q_D(const QFxAnimatedImageItem); + if(!d->_movie) + return false; + return d->_movie->state()==QMovie::Running; +} + +void QFxAnimatedImageItem::setPlaying(bool play) +{ + Q_D(QFxAnimatedImageItem); + if(!d->_movie) + return; + if(play) + d->_movie->start(); + else + d->_movie->stop(); +} + +/*! + \qmlproperty int AnimatedImage::currentFrame + \qmlproperty int AnimatedImage::frameCount + + currentFrame is the frame that is currently visible. Watching when this changes can + allow other things to animate at the same time as the image. frameCount is the number + of frames in the animation. For some animation formats, frameCount is unknown and set to zero. +*/ +int QFxAnimatedImageItem::currentFrame() const +{ + Q_D(const QFxAnimatedImageItem); + if(!d->_movie) + return -1; + return d->_movie->currentFrameNumber(); +} + +void QFxAnimatedImageItem::setCurrentFrame(int frame) +{ + Q_D(QFxAnimatedImageItem); + if(!d->_movie) + return; + d->_movie->jumpToFrame(frame); +} + +int QFxAnimatedImageItem::frameCount() const +{ + Q_D(const QFxAnimatedImageItem); + if(!d->_movie) + return 0; + return d->_movie->frameCount(); +} + +void QFxAnimatedImageItem::setSource(const QString &url) +{ + Q_D(QFxAnimatedImageItem); + if(url == d->source) + return; + + delete d->_movie; + d->_movie = 0; + + if(d->reply) { + d->reply->deleteLater(); + d->reply = 0; + } + + d->source = url; + d->url = itemContext()->resolvedUrl(url); + + if(url.isEmpty()) { + delete d->_movie; + d->status = Idle; + } else { + d->status = Loading; + QNetworkRequest req(d->url); + req.setAttribute(QNetworkRequest::CacheLoadControlAttribute, QNetworkRequest::PreferCache); + d->reply = itemContext()->engine()->networkAccessManager()->get(req); + QObject::connect(d->reply, SIGNAL(finished()), + this, SLOT(movieRequestFinished())); + } + + emit statusChanged(d->status); +} + +void QFxAnimatedImageItem::movieRequestFinished() +{ + Q_D(QFxAnimatedImageItem); + d->_movie = new QMovie(d->reply); + if(!d->_movie->isValid()){ + qWarning() << "Error Reading File " << d->url; + delete d->_movie; + d->_movie = 0; + return; + } + connect(d->_movie, SIGNAL(stateChanged(QMovie::MovieState)), + this, SIGNAL(playingChanged())); + connect(d->_movie, SIGNAL(frameChanged(int)), + this, SLOT(movieUpdate())); + d->_movie->setCacheMode(QMovie::CacheAll); + d->_movie->start(); + setPixmap(d->_movie->currentPixmap()); +} + +void QFxAnimatedImageItem::movieUpdate() +{ + Q_D(QFxAnimatedImageItem); + setPixmap(d->_movie->currentPixmap()); + emit frameChanged(); +} + +QT_END_NAMESPACE |