diff options
Diffstat (limited to 'src/qtquick1/util/qdeclarativepixmapcache.cpp')
| -rw-r--r-- | src/qtquick1/util/qdeclarativepixmapcache.cpp | 1090 |
1 files changed, 0 insertions, 1090 deletions
diff --git a/src/qtquick1/util/qdeclarativepixmapcache.cpp b/src/qtquick1/util/qdeclarativepixmapcache.cpp deleted file mode 100644 index ea9de6771c..0000000000 --- a/src/qtquick1/util/qdeclarativepixmapcache.cpp +++ /dev/null @@ -1,1090 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/ -** -** This file is part of the QtDeclarative module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** GNU Lesser General Public License Usage -** 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 1.1, 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. -** -** Other Usage -** Alternatively, this file may be used in accordance with the terms and -** conditions contained in a signed written agreement between you and Nokia. -** -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "QtQuick1/private/qdeclarativepixmapcache_p.h" -#include "QtDeclarative/qdeclarativenetworkaccessmanagerfactory.h" -#include "QtDeclarative/qdeclarativeimageprovider.h" - -#include <QtDeclarative/qdeclarativeengine.h> -#include <QtDeclarative/private/qdeclarativeglobal_p.h> -#include <QtDeclarative/private/qdeclarativeengine_p.h> - -#include <QCoreApplication> -#include <QImageReader> -#include <QHash> -#include <QNetworkReply> -#include <QPixmapCache> -#include <QFile> -#include <QThread> -#include <QMutex> -#include <QMutexLocker> -#include <QWaitCondition> -#include <QBuffer> -#include <QWaitCondition> -#include <QtCore/qdebug.h> -#include <private/qobject_p.h> -#include <QSslError> - -#define IMAGEREQUEST_MAX_REQUEST_COUNT 8 -#define IMAGEREQUEST_MAX_REDIRECT_RECURSION 16 -#define CACHE_EXPIRE_TIME 30 -#define CACHE_REMOVAL_FRACTION 4 - -QT_BEGIN_NAMESPACE - - - -// The cache limit describes the maximum "junk" in the cache. -// These are the same defaults as QPixmapCache -#if defined(Q_WS_QWS) || defined(Q_WS_WINCE) -static int cache_limit = 2048 * 1024; // 2048 KB cache limit for embedded -#else -static int cache_limit = 10240 * 1024; // 10 MB cache limit for desktop -#endif - -class QDeclarative1PixmapReader; -class QDeclarative1PixmapData; -class QDeclarative1PixmapReply : public QObject -{ - Q_OBJECT -public: - enum ReadError { NoError, Loading, Decoding }; - - QDeclarative1PixmapReply(QDeclarative1PixmapData *); - ~QDeclarative1PixmapReply(); - - QDeclarative1PixmapData *data; - QDeclarative1PixmapReader *reader; - QSize requestSize; - - bool loading; - int redirectCount; - - class Event : public QEvent { - public: - Event(ReadError, const QString &, const QSize &, const QImage &); - - ReadError error; - QString errorString; - QSize implicitSize; - QImage image; - }; - void postReply(ReadError, const QString &, const QSize &, const QImage &); - - -Q_SIGNALS: - void finished(); - void downloadProgress(qint64, qint64); - -protected: - bool event(QEvent *event); - -private: - Q_DISABLE_COPY(QDeclarative1PixmapReply) - -public: - static int finishedIndex; - static int downloadProgressIndex; -}; - -class QDeclarative1PixmapReaderThreadObject : public QObject { - Q_OBJECT -public: - QDeclarative1PixmapReaderThreadObject(QDeclarative1PixmapReader *); - void processJobs(); - virtual bool event(QEvent *e); -private slots: - void networkRequestDone(); -private: - QDeclarative1PixmapReader *reader; -}; - -class QDeclarative1PixmapData; -class QDeclarative1PixmapReader : public QThread -{ - Q_OBJECT -public: - QDeclarative1PixmapReader(QDeclarativeEngine *eng); - ~QDeclarative1PixmapReader(); - - QDeclarative1PixmapReply *getImage(QDeclarative1PixmapData *); - void cancel(QDeclarative1PixmapReply *rep); - - static QDeclarative1PixmapReader *instance(QDeclarativeEngine *engine); - -protected: - void run(); - -private: - friend class QDeclarative1PixmapReaderThreadObject; - void processJobs(); - void processJob(QDeclarative1PixmapReply *, const QUrl &, const QSize &); - void networkRequestDone(QNetworkReply *); - - QList<QDeclarative1PixmapReply*> jobs; - QList<QDeclarative1PixmapReply*> cancelled; - QDeclarativeEngine *engine; - QObject *eventLoopQuitHack; - - QMutex mutex; - QDeclarative1PixmapReaderThreadObject *threadObject; - QWaitCondition waitCondition; - - QNetworkAccessManager *networkAccessManager(); - QNetworkAccessManager *accessManager; - - QHash<QNetworkReply*,QDeclarative1PixmapReply*> replies; - - static int replyDownloadProgress; - static int replyFinished; - static int downloadProgress; - static int threadNetworkRequestDone; - static QHash<QDeclarativeEngine *,QDeclarative1PixmapReader*> readers; - static QMutex readerMutex; -}; - -class QDeclarative1PixmapData -{ -public: - QDeclarative1PixmapData(const QUrl &u, const QSize &s, const QString &e) - : refCount(1), inCache(false), pixmapStatus(QDeclarative1Pixmap::Error), - url(u), errorString(e), requestSize(s), reply(0), prevUnreferenced(0), - prevUnreferencedPtr(0), nextUnreferenced(0) - { - } - - QDeclarative1PixmapData(const QUrl &u, const QSize &r) - : refCount(1), inCache(false), pixmapStatus(QDeclarative1Pixmap::Loading), - url(u), requestSize(r), reply(0), prevUnreferenced(0), prevUnreferencedPtr(0), - nextUnreferenced(0) - { - } - - QDeclarative1PixmapData(const QUrl &u, const QPixmap &p, const QSize &s, const QSize &r) - : refCount(1), inCache(false), privatePixmap(false), pixmapStatus(QDeclarative1Pixmap::Ready), - url(u), pixmap(p), implicitSize(s), requestSize(r), reply(0), prevUnreferenced(0), - prevUnreferencedPtr(0), nextUnreferenced(0) - { - } - - QDeclarative1PixmapData(const QPixmap &p) - : refCount(1), inCache(false), privatePixmap(true), pixmapStatus(QDeclarative1Pixmap::Ready), - pixmap(p), implicitSize(p.size()), requestSize(p.size()), reply(0), prevUnreferenced(0), - prevUnreferencedPtr(0), nextUnreferenced(0) - { - } - - int cost() const; - void addref(); - void release(); - void addToCache(); - void removeFromCache(); - - uint refCount; - - bool inCache:1; - bool privatePixmap:1; - - QDeclarative1Pixmap::Status pixmapStatus; - QUrl url; - QString errorString; - QPixmap pixmap; - QSize implicitSize; - QSize requestSize; - - QDeclarative1PixmapReply *reply; - - QDeclarative1PixmapData *prevUnreferenced; - QDeclarative1PixmapData**prevUnreferencedPtr; - QDeclarative1PixmapData *nextUnreferenced; -}; - -int QDeclarative1PixmapReply::finishedIndex = -1; -int QDeclarative1PixmapReply::downloadProgressIndex = -1; - -// XXX -QHash<QDeclarativeEngine *,QDeclarative1PixmapReader*> QDeclarative1PixmapReader::readers; -QMutex QDeclarative1PixmapReader::readerMutex; - -int QDeclarative1PixmapReader::replyDownloadProgress = -1; -int QDeclarative1PixmapReader::replyFinished = -1; -int QDeclarative1PixmapReader::downloadProgress = -1; -int QDeclarative1PixmapReader::threadNetworkRequestDone = -1; - - -void QDeclarative1PixmapReply::postReply(ReadError error, const QString &errorString, - const QSize &implicitSize, const QImage &image) -{ - loading = false; - QCoreApplication::postEvent(this, new Event(error, errorString, implicitSize, image)); -} - -QDeclarative1PixmapReply::Event::Event(ReadError e, const QString &s, const QSize &iSize, const QImage &i) -: QEvent(QEvent::User), error(e), errorString(s), implicitSize(iSize), image(i) -{ -} - -QNetworkAccessManager *QDeclarative1PixmapReader::networkAccessManager() -{ - if (!accessManager) { - Q_ASSERT(threadObject); - accessManager = QDeclarativeEnginePrivate::get(engine)->createNetworkAccessManager(threadObject); - } - return accessManager; -} - -static bool readImage(const QUrl& url, QIODevice *dev, QImage *image, QString *errorString, QSize *impsize, - const QSize &requestSize) -{ - QImageReader imgio(dev); - - bool force_scale = false; - if (url.path().endsWith(QLatin1String(".svg"),Qt::CaseInsensitive)) { - imgio.setFormat("svg"); // QSvgPlugin::capabilities bug QTBUG-9053 - force_scale = true; - } - - bool scaled = false; - if (requestSize.width() > 0 || requestSize.height() > 0) { - QSize s = imgio.size(); - if (requestSize.width() && (force_scale || requestSize.width() < s.width())) { - if (requestSize.height() <= 0) - s.setHeight(s.height()*requestSize.width()/s.width()); - s.setWidth(requestSize.width()); scaled = true; - } - if (requestSize.height() && (force_scale || requestSize.height() < s.height())) { - if (requestSize.width() <= 0) - s.setWidth(s.width()*requestSize.height()/s.height()); - s.setHeight(requestSize.height()); scaled = true; - } - if (scaled) { imgio.setScaledSize(s); } - } - - if (impsize) - *impsize = imgio.size(); - - if (imgio.read(image)) { - if (impsize && impsize->width() < 0) - *impsize = image->size(); - return true; - } else { - if (errorString) - *errorString = QDeclarative1Pixmap::tr("Error decoding: %1: %2").arg(url.toString()) - .arg(imgio.errorString()); - return false; - } -} - -QDeclarative1PixmapReader::QDeclarative1PixmapReader(QDeclarativeEngine *eng) -: QThread(eng), engine(eng), threadObject(0), accessManager(0) -{ - eventLoopQuitHack = new QObject; - eventLoopQuitHack->moveToThread(this); - connect(eventLoopQuitHack, SIGNAL(destroyed(QObject*)), SLOT(quit()), Qt::DirectConnection); - start(QThread::IdlePriority); -} - -QDeclarative1PixmapReader::~QDeclarative1PixmapReader() -{ - readerMutex.lock(); - readers.remove(engine); - readerMutex.unlock(); - - eventLoopQuitHack->deleteLater(); - wait(); -} - -void QDeclarative1PixmapReader::networkRequestDone(QNetworkReply *reply) -{ - QDeclarative1PixmapReply *job = replies.take(reply); - - if (job) { - job->redirectCount++; - if (job->redirectCount < IMAGEREQUEST_MAX_REDIRECT_RECURSION) { - QVariant redirect = reply->attribute(QNetworkRequest::RedirectionTargetAttribute); - if (redirect.isValid()) { - QUrl url = reply->url().resolved(redirect.toUrl()); - QNetworkRequest req(url); - req.setAttribute(QNetworkRequest::HttpPipeliningAllowedAttribute, true); - - reply->deleteLater(); - reply = networkAccessManager()->get(req); - - QMetaObject::connect(reply, replyDownloadProgress, job, downloadProgress); - QMetaObject::connect(reply, replyFinished, threadObject, threadNetworkRequestDone); - - replies.insert(reply, job); - return; - } - } - - QImage image; - QDeclarative1PixmapReply::ReadError error = QDeclarative1PixmapReply::NoError; - QString errorString; - QSize readSize; - if (reply->error()) { - error = QDeclarative1PixmapReply::Loading; - errorString = reply->errorString(); - } else { - QByteArray all = reply->readAll(); - QBuffer buff(&all); - buff.open(QIODevice::ReadOnly); - if (!readImage(reply->url(), &buff, &image, &errorString, &readSize, job->requestSize)) { - error = QDeclarative1PixmapReply::Decoding; - } - } - // send completion event to the QDeclarative1PixmapReply - mutex.lock(); - if (!cancelled.contains(job)) job->postReply(error, errorString, readSize, image); - mutex.unlock(); - } - reply->deleteLater(); - - // kick off event loop again incase we have dropped below max request count - threadObject->processJobs(); -} - -QDeclarative1PixmapReaderThreadObject::QDeclarative1PixmapReaderThreadObject(QDeclarative1PixmapReader *i) -: reader(i) -{ -} - -void QDeclarative1PixmapReaderThreadObject::processJobs() -{ - QCoreApplication::postEvent(this, new QEvent(QEvent::User)); -} - -bool QDeclarative1PixmapReaderThreadObject::event(QEvent *e) -{ - if (e->type() == QEvent::User) { - reader->processJobs(); - return true; - } else { - return QObject::event(e); - } -} - -void QDeclarative1PixmapReaderThreadObject::networkRequestDone() -{ - QNetworkReply *reply = static_cast<QNetworkReply *>(sender()); - reader->networkRequestDone(reply); -} - -void QDeclarative1PixmapReader::processJobs() -{ - QMutexLocker locker(&mutex); - - while (true) { - if (cancelled.isEmpty() && (jobs.isEmpty() || replies.count() >= IMAGEREQUEST_MAX_REQUEST_COUNT)) - return; // Nothing else to do - - // Clean cancelled jobs - if (cancelled.count()) { - for (int i = 0; i < cancelled.count(); ++i) { - QDeclarative1PixmapReply *job = cancelled.at(i); - QNetworkReply *reply = replies.key(job, 0); - if (reply && reply->isRunning()) { - // cancel any jobs already started - replies.remove(reply); - reply->close(); - } - // deleteLater, since not owned by this thread - job->deleteLater(); - } - cancelled.clear(); - } - - if (!jobs.isEmpty() && replies.count() < IMAGEREQUEST_MAX_REQUEST_COUNT) { - QDeclarative1PixmapReply *runningJob = jobs.takeLast(); - runningJob->loading = true; - - QUrl url = runningJob->data->url; - QSize requestSize = runningJob->data->requestSize; - locker.unlock(); - processJob(runningJob, url, requestSize); - locker.relock(); - } - } -} - -void QDeclarative1PixmapReader::processJob(QDeclarative1PixmapReply *runningJob, const QUrl &url, - const QSize &requestSize) -{ - // fetch - if (url.scheme() == QLatin1String("image")) { - // Use QmlImageProvider - QSize readSize; - QDeclarativeEnginePrivate *ep = QDeclarativeEnginePrivate::get(engine); - QImage image = ep->getImageFromProvider(url, &readSize, requestSize); - - QDeclarative1PixmapReply::ReadError errorCode = QDeclarative1PixmapReply::NoError; - QString errorStr; - if (image.isNull()) { - errorCode = QDeclarative1PixmapReply::Loading; - errorStr = QDeclarative1Pixmap::tr("Failed to get image from provider: %1").arg(url.toString()); - } - - mutex.lock(); - if (!cancelled.contains(runningJob)) runningJob->postReply(errorCode, errorStr, readSize, image); - mutex.unlock(); - } else { - QString lf = QDeclarativeEnginePrivate::urlToLocalFileOrQrc(url); - if (!lf.isEmpty()) { - // Image is local - load/decode immediately - QImage image; - QDeclarative1PixmapReply::ReadError errorCode = QDeclarative1PixmapReply::NoError; - QString errorStr; - QFile f(lf); - QSize readSize; - if (f.open(QIODevice::ReadOnly)) { - if (!readImage(url, &f, &image, &errorStr, &readSize, requestSize)) - errorCode = QDeclarative1PixmapReply::Loading; - } else { - errorStr = QDeclarative1Pixmap::tr("Cannot open: %1").arg(url.toString()); - errorCode = QDeclarative1PixmapReply::Loading; - } - mutex.lock(); - if (!cancelled.contains(runningJob)) runningJob->postReply(errorCode, errorStr, readSize, image); - mutex.unlock(); - } else { - // Network resource - QNetworkRequest req(url); - req.setAttribute(QNetworkRequest::HttpPipeliningAllowedAttribute, true); - QNetworkReply *reply = networkAccessManager()->get(req); - - QMetaObject::connect(reply, replyDownloadProgress, runningJob, downloadProgress); - QMetaObject::connect(reply, replyFinished, threadObject, threadNetworkRequestDone); - - replies.insert(reply, runningJob); - } - } -} - -QDeclarative1PixmapReader *QDeclarative1PixmapReader::instance(QDeclarativeEngine *engine) -{ - readerMutex.lock(); - QDeclarative1PixmapReader *reader = readers.value(engine); - if (!reader) { - reader = new QDeclarative1PixmapReader(engine); - readers.insert(engine, reader); - } - readerMutex.unlock(); - - return reader; -} - -QDeclarative1PixmapReply *QDeclarative1PixmapReader::getImage(QDeclarative1PixmapData *data) -{ - mutex.lock(); - QDeclarative1PixmapReply *reply = new QDeclarative1PixmapReply(data); - reply->reader = this; - jobs.append(reply); - // XXX - if (threadObject) threadObject->processJobs(); - mutex.unlock(); - return reply; -} - -void QDeclarative1PixmapReader::cancel(QDeclarative1PixmapReply *reply) -{ - mutex.lock(); - if (reply->loading) { - cancelled.append(reply); - reply->data = 0; - // XXX - if (threadObject) threadObject->processJobs(); - } else { - jobs.removeAll(reply); - delete reply; - } - mutex.unlock(); -} - -void QDeclarative1PixmapReader::run() -{ - if (replyDownloadProgress == -1) { - const QMetaObject *nr = &QNetworkReply::staticMetaObject; - const QMetaObject *pr = &QDeclarative1PixmapReply::staticMetaObject; - const QMetaObject *ir = &QDeclarative1PixmapReaderThreadObject::staticMetaObject; - replyDownloadProgress = nr->indexOfSignal("downloadProgress(qint64,qint64)"); - replyFinished = nr->indexOfSignal("finished()"); - downloadProgress = pr->indexOfSignal("downloadProgress(qint64,qint64)"); - threadNetworkRequestDone = ir->indexOfSlot("networkRequestDone()"); - } - - mutex.lock(); - threadObject = new QDeclarative1PixmapReaderThreadObject(this); - mutex.unlock(); - - processJobs(); - exec(); - - delete threadObject; - threadObject = 0; -} - -class QDeclarative1PixmapKey -{ -public: - const QUrl *url; - const QSize *size; -}; - -inline bool operator==(const QDeclarative1PixmapKey &lhs, const QDeclarative1PixmapKey &rhs) -{ - return *lhs.size == *rhs.size && *lhs.url == *rhs.url; -} - -inline uint qHash(const QDeclarative1PixmapKey &key) -{ - return qHash(*key.url) ^ key.size->width() ^ key.size->height(); -} - -class QDeclarative1PixmapStore : public QObject -{ - Q_OBJECT -public: - QDeclarative1PixmapStore(); - - void unreferencePixmap(QDeclarative1PixmapData *); - void referencePixmap(QDeclarative1PixmapData *); - -protected: - virtual void timerEvent(QTimerEvent *); - -public: - QHash<QDeclarative1PixmapKey, QDeclarative1PixmapData *> m_cache; - -private: - void shrinkCache(int remove); - - QDeclarative1PixmapData *m_unreferencedPixmaps; - QDeclarative1PixmapData *m_lastUnreferencedPixmap; - - int m_unreferencedCost; - int m_timerId; -}; - -Q_GLOBAL_STATIC(QDeclarative1PixmapStore, pixmapStore) - -QDeclarative1PixmapStore::QDeclarative1PixmapStore() -: m_unreferencedPixmaps(0), m_lastUnreferencedPixmap(0), m_unreferencedCost(0), m_timerId(-1) -{ -} - -void QDeclarative1PixmapStore::unreferencePixmap(QDeclarative1PixmapData *data) -{ - Q_ASSERT(data->prevUnreferenced == 0); - Q_ASSERT(data->prevUnreferencedPtr == 0); - Q_ASSERT(data->nextUnreferenced == 0); - - data->nextUnreferenced = m_unreferencedPixmaps; - data->prevUnreferencedPtr = &m_unreferencedPixmaps; - - m_unreferencedPixmaps = data; - if (m_unreferencedPixmaps->nextUnreferenced) { - m_unreferencedPixmaps->nextUnreferenced->prevUnreferenced = m_unreferencedPixmaps; - m_unreferencedPixmaps->nextUnreferenced->prevUnreferencedPtr = &m_unreferencedPixmaps->nextUnreferenced; - } - - if (!m_lastUnreferencedPixmap) - m_lastUnreferencedPixmap = data; - - m_unreferencedCost += data->cost(); - - shrinkCache(-1); // Shrink the cache incase it has become larger than cache_limit - - if (m_timerId == -1 && m_unreferencedPixmaps) - m_timerId = startTimer(CACHE_EXPIRE_TIME * 1000); -} - -void QDeclarative1PixmapStore::referencePixmap(QDeclarative1PixmapData *data) -{ - Q_ASSERT(data->prevUnreferencedPtr); - - *data->prevUnreferencedPtr = data->nextUnreferenced; - if (data->nextUnreferenced) { - data->nextUnreferenced->prevUnreferencedPtr = data->prevUnreferencedPtr; - data->nextUnreferenced->prevUnreferenced = data->prevUnreferenced; - } - if (m_lastUnreferencedPixmap == data) - m_lastUnreferencedPixmap = data->prevUnreferenced; - - data->nextUnreferenced = 0; - data->prevUnreferencedPtr = 0; - data->prevUnreferenced = 0; - - m_unreferencedCost -= data->cost(); -} - -void QDeclarative1PixmapStore::shrinkCache(int remove) -{ - while ((remove > 0 || m_unreferencedCost > cache_limit) && m_lastUnreferencedPixmap) { - QDeclarative1PixmapData *data = m_lastUnreferencedPixmap; - Q_ASSERT(data->nextUnreferenced == 0); - - *data->prevUnreferencedPtr = 0; - m_lastUnreferencedPixmap = data->prevUnreferenced; - data->prevUnreferencedPtr = 0; - data->prevUnreferenced = 0; - - remove -= data->cost(); - m_unreferencedCost -= data->cost(); - data->removeFromCache(); - delete data; - } -} - -void QDeclarative1PixmapStore::timerEvent(QTimerEvent *) -{ - int removalCost = m_unreferencedCost / CACHE_REMOVAL_FRACTION; - - shrinkCache(removalCost); - - if (m_unreferencedPixmaps == 0) { - killTimer(m_timerId); - m_timerId = -1; - } -} - -QDeclarative1PixmapReply::QDeclarative1PixmapReply(QDeclarative1PixmapData *d) -: data(d), reader(0), requestSize(d->requestSize), loading(false), redirectCount(0) -{ - if (finishedIndex == -1) { - finishedIndex = QDeclarative1PixmapReply::staticMetaObject.indexOfSignal("finished()"); - downloadProgressIndex = QDeclarative1PixmapReply::staticMetaObject.indexOfSignal("downloadProgress(qint64,qint64)"); - } -} - -QDeclarative1PixmapReply::~QDeclarative1PixmapReply() -{ -} - -bool QDeclarative1PixmapReply::event(QEvent *event) -{ - if (event->type() == QEvent::User) { - - if (data) { - Event *de = static_cast<Event *>(event); - data->pixmapStatus = (de->error == NoError) ? QDeclarative1Pixmap::Ready : QDeclarative1Pixmap::Error; - - if (data->pixmapStatus == QDeclarative1Pixmap::Ready) { - data->pixmap = QPixmap::fromImage(de->image); - data->implicitSize = de->implicitSize; - } else { - data->errorString = de->errorString; - data->removeFromCache(); // We don't continue to cache error'd pixmaps - } - - data->reply = 0; - emit finished(); - } - - delete this; - return true; - } else { - return QObject::event(event); - } -} - -int QDeclarative1PixmapData::cost() const -{ - return (pixmap.width() * pixmap.height() * pixmap.depth()) / 8; -} - -void QDeclarative1PixmapData::addref() -{ - ++refCount; - if (prevUnreferencedPtr) - pixmapStore()->referencePixmap(this); -} - -void QDeclarative1PixmapData::release() -{ - Q_ASSERT(refCount > 0); - --refCount; - - if (refCount == 0) { - if (reply) { - reply->reader->cancel(reply); - reply = 0; - } - - if (pixmapStatus == QDeclarative1Pixmap::Ready) { - pixmapStore()->unreferencePixmap(this); - } else { - removeFromCache(); - delete this; - } - } -} - -void QDeclarative1PixmapData::addToCache() -{ - if (!inCache) { - QDeclarative1PixmapKey key = { &url, &requestSize }; - pixmapStore()->m_cache.insert(key, this); - inCache = true; - } -} - -void QDeclarative1PixmapData::removeFromCache() -{ - if (inCache) { - QDeclarative1PixmapKey key = { &url, &requestSize }; - pixmapStore()->m_cache.remove(key); - inCache = false; - } -} - -static QDeclarative1PixmapData* createPixmapDataSync(QDeclarativeEngine *engine, const QUrl &url, const QSize &requestSize, bool *ok) -{ - if (url.scheme() == QLatin1String("image")) { - QSize readSize; - QDeclarativeEnginePrivate *ep = QDeclarativeEnginePrivate::get(engine); - QDeclarativeImageProvider::ImageType imageType = ep->getImageProviderType(url); - - switch (imageType) { - case QDeclarativeImageProvider::Image: - { - QImage image = ep->getImageFromProvider(url, &readSize, requestSize); - if (!image.isNull()) { - *ok = true; - return new QDeclarative1PixmapData(url, QPixmap::fromImage(image), readSize, requestSize); - } - } - break; - case QDeclarativeImageProvider::Pixmap: - { - QPixmap pixmap = ep->getPixmapFromProvider(url, &readSize, requestSize); - if (!pixmap.isNull()) { - *ok = true; - return new QDeclarative1PixmapData(url, pixmap, readSize, requestSize); - } - } - break; - case QDeclarativeImageProvider::Texture: - case QDeclarativeImageProvider::Invalid: - break; - } - - // no matching provider, or provider has bad image type, or provider returned null image - return new QDeclarative1PixmapData(url, requestSize, - QDeclarative1Pixmap::tr("Failed to get image from provider: %1").arg(url.toString())); - } - - QString localFile = QDeclarativeEnginePrivate::urlToLocalFileOrQrc(url); - if (localFile.isEmpty()) - return 0; - - QFile f(localFile); - QSize readSize; - QString errorString; - - if (f.open(QIODevice::ReadOnly)) { - QImage image; - if (readImage(url, &f, &image, &errorString, &readSize, requestSize)) { - *ok = true; - return new QDeclarative1PixmapData(url, QPixmap::fromImage(image), readSize, requestSize); - } - } else { - errorString = QDeclarative1Pixmap::tr("Cannot open: %1").arg(url.toString()); - } - return new QDeclarative1PixmapData(url, requestSize, errorString); -} - - -struct QDeclarative1PixmapNull { - QUrl url; - QPixmap pixmap; - QSize size; -}; -Q_GLOBAL_STATIC(QDeclarative1PixmapNull, nullPixmap); - -QDeclarative1Pixmap::QDeclarative1Pixmap() -: d(0) -{ -} - -QDeclarative1Pixmap::QDeclarative1Pixmap(QDeclarativeEngine *engine, const QUrl &url) -: d(0) -{ - load(engine, url); -} - -QDeclarative1Pixmap::QDeclarative1Pixmap(QDeclarativeEngine *engine, const QUrl &url, const QSize &size) -: d(0) -{ - load(engine, url, size); -} - -QDeclarative1Pixmap::~QDeclarative1Pixmap() -{ - if (d) { - d->release(); - d = 0; - } -} - -bool QDeclarative1Pixmap::isNull() const -{ - return d == 0; -} - -bool QDeclarative1Pixmap::isReady() const -{ - return status() == Ready; -} - -bool QDeclarative1Pixmap::isError() const -{ - return status() == Error; -} - -bool QDeclarative1Pixmap::isLoading() const -{ - return status() == Loading; -} - -QString QDeclarative1Pixmap::error() const -{ - if (d) - return d->errorString; - else - return QString(); -} - -QDeclarative1Pixmap::Status QDeclarative1Pixmap::status() const -{ - if (d) - return d->pixmapStatus; - else - return Null; -} - -const QUrl &QDeclarative1Pixmap::url() const -{ - if (d) - return d->url; - else - return nullPixmap()->url; -} - -const QSize &QDeclarative1Pixmap::implicitSize() const -{ - if (d) - return d->implicitSize; - else - return nullPixmap()->size; -} - -const QSize &QDeclarative1Pixmap::requestSize() const -{ - if (d) - return d->requestSize; - else - return nullPixmap()->size; -} - -const QPixmap &QDeclarative1Pixmap::pixmap() const -{ - if (d) - return d->pixmap; - else - return nullPixmap()->pixmap; -} - -void QDeclarative1Pixmap::setPixmap(const QPixmap &p) -{ - clear(); - - if (!p.isNull()) - d = new QDeclarative1PixmapData(p); -} - -int QDeclarative1Pixmap::width() const -{ - if (d) - return d->pixmap.width(); - else - return 0; -} - -int QDeclarative1Pixmap::height() const -{ - if (d) - return d->pixmap.height(); - else - return 0; -} - -QRect QDeclarative1Pixmap::rect() const -{ - if (d) - return d->pixmap.rect(); - else - return QRect(); -} - -void QDeclarative1Pixmap::load(QDeclarativeEngine *engine, const QUrl &url) -{ - load(engine, url, QSize(), QDeclarative1Pixmap::Cache); -} - -void QDeclarative1Pixmap::load(QDeclarativeEngine *engine, const QUrl &url, QDeclarative1Pixmap::Options options) -{ - load(engine, url, QSize(), options); -} - -void QDeclarative1Pixmap::load(QDeclarativeEngine *engine, const QUrl &url, const QSize &size) -{ - load(engine, url, size, QDeclarative1Pixmap::Cache); -} - -void QDeclarative1Pixmap::load(QDeclarativeEngine *engine, const QUrl &url, const QSize &requestSize, QDeclarative1Pixmap::Options options) -{ - if (d) { d->release(); d = 0; } - - QDeclarative1PixmapKey key = { &url, &requestSize }; - QDeclarative1PixmapStore *store = pixmapStore(); - - QHash<QDeclarative1PixmapKey, QDeclarative1PixmapData *>::Iterator iter = store->m_cache.find(key); - - if (iter == store->m_cache.end()) { - if (options & QDeclarative1Pixmap::Asynchronous) { - // pixmaps can only be loaded synchronously - if (url.scheme() == QLatin1String("image") - && QDeclarativeEnginePrivate::get(engine)->getImageProviderType(url) == QDeclarativeImageProvider::Pixmap) { - options &= ~QDeclarative1Pixmap::Asynchronous; - } - } - - if (!(options & QDeclarative1Pixmap::Asynchronous)) { - bool ok = false; - d = createPixmapDataSync(engine, url, requestSize, &ok); - if (ok) { - if (options & QDeclarative1Pixmap::Cache) - d->addToCache(); - return; - } - if (d) // loadable, but encountered error while loading - return; - } - - if (!engine) - return; - - QDeclarative1PixmapReader *reader = QDeclarative1PixmapReader::instance(engine); - - d = new QDeclarative1PixmapData(url, requestSize); - if (options & QDeclarative1Pixmap::Cache) - d->addToCache(); - - d->reply = reader->getImage(d); - } else { - d = *iter; - d->addref(); - } -} - -void QDeclarative1Pixmap::clear() -{ - if (d) { - d->release(); - d = 0; - } -} - -void QDeclarative1Pixmap::clear(QObject *obj) -{ - if (d) { - if (d->reply) - QObject::disconnect(d->reply, 0, obj, 0); - d->release(); - d = 0; - } -} - -bool QDeclarative1Pixmap::connectFinished(QObject *object, const char *method) -{ - if (!d || !d->reply) { - qWarning("QDeclarative1Pixmap: connectFinished() called when not loading."); - return false; - } - - return QObject::connect(d->reply, SIGNAL(finished()), object, method); -} - -bool QDeclarative1Pixmap::connectFinished(QObject *object, int method) -{ - if (!d || !d->reply) { - qWarning("QDeclarative1Pixmap: connectFinished() called when not loading."); - return false; - } - - return QMetaObject::connect(d->reply, QDeclarative1PixmapReply::finishedIndex, object, method); -} - -bool QDeclarative1Pixmap::connectDownloadProgress(QObject *object, const char *method) -{ - if (!d || !d->reply) { - qWarning("QDeclarative1Pixmap: connectDownloadProgress() called when not loading."); - return false; - } - - return QObject::connect(d->reply, SIGNAL(downloadProgress(qint64,qint64)), object, method); -} - -bool QDeclarative1Pixmap::connectDownloadProgress(QObject *object, int method) -{ - if (!d || !d->reply) { - qWarning("QDeclarative1Pixmap: connectDownloadProgress() called when not loading."); - return false; - } - - return QMetaObject::connect(d->reply, QDeclarative1PixmapReply::downloadProgressIndex, object, method); -} - - - -QT_END_NAMESPACE - -#include <qdeclarativepixmapcache.moc> |