FCL/sf/mw/qt: comparison src/declarative/qml/qdeclarativeengine.cpp

equal deleted inserted replaced

-:b72c6db6890b
+:5dc02b23752f
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (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 Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include "private/qdeclarativeengine_p.h"
+#include "qdeclarativeengine.h"
+#include "private/qdeclarativecontext_p.h"
+#include "private/qdeclarativecompiler_p.h"
+#include "private/qdeclarativeglobalscriptclass_p.h"
+#include "qdeclarative.h"
+#include "qdeclarativecontext.h"
+#include "qdeclarativeexpression.h"
+#include "qdeclarativecomponent.h"
+#include "private/qdeclarativebinding_p_p.h"
+#include "private/qdeclarativevme_p.h"
+#include "private/qdeclarativeenginedebug_p.h"
+#include "private/qdeclarativestringconverters_p.h"
+#include "private/qdeclarativexmlhttprequest_p.h"
+#include "private/qdeclarativesqldatabase_p.h"
+#include "private/qdeclarativetypenamescriptclass_p.h"
+#include "private/qdeclarativelistscriptclass_p.h"
+#include "qdeclarativescriptstring.h"
+#include "private/qdeclarativeglobal_p.h"
+#include "private/qdeclarativeworkerscript_p.h"
+#include "private/qdeclarativecomponent_p.h"
+#include "qdeclarativenetworkaccessmanagerfactory.h"
+#include "qdeclarativeimageprovider.h"
+#include "private/qdeclarativedirparser_p.h"
+#include "qdeclarativeextensioninterface.h"
+#include "private/qdeclarativelist_p.h"
+#include "private/qdeclarativetypenamecache_p.h"
+#include "private/qdeclarativeinclude_p.h"
+#include <QtCore/qmetaobject.h>
+#include <QScriptClass>
+#include <QNetworkReply>
+#include <QNetworkRequest>
+#include <QNetworkAccessManager>
+#include <QDesktopServices>
+#include <QTimer>
+#include <QList>
+#include <QPair>
+#include <QDebug>
+#include <QMetaObject>
+#include <QStack>
+#include <QMap>
+#include <QPluginLoader>
+#include <QtGui/qfontdatabase.h>
+#include <QtCore/qlibraryinfo.h>
+#include <QtCore/qthreadstorage.h>
+#include <QtCore/qthread.h>
+#include <QtCore/qcoreapplication.h>
+#include <QtCore/qdir.h>
+#include <QtCore/qmutex.h>
+#include <QtGui/qcolor.h>
+#include <QtGui/qvector3d.h>
+#include <QtGui/qsound.h>
+#include <QGraphicsObject>
+#include <QtCore/qcryptographichash.h>
+#include <private/qobject_p.h>
+#include <private/qscriptdeclarativeclass_p.h>
+#include <private/qdeclarativeitemsmodule_p.h>
+#include <private/qdeclarativeutilmodule_p.h>
+#ifdef Q_OS_WIN // for %APPDATA%
+#include <qt_windows.h>
+#include <qlibrary.h>
+#define CSIDL_APPDATA		0x001a	// <username>\Application Data
+#endif
+Q_DECLARE_METATYPE(QDeclarativeProperty)
+QT_BEGIN_NAMESPACE
+/*!
+\qmlclass QtObject QObject
+\since 4.7
+\brief The QtObject element is the most basic element in QML
+The QtObject element is a non-visual element which contains only the
+objectName property. It is useful for when you need an extremely
+lightweight element to place your own custom properties in.
+It can also be useful for C++ integration, as it is just a plain
+QObject. See the QObject documentation for further details.
+*/
+/*!
+\qmlproperty string QtObject::objectName
+This property allows you to give a name to this specific object instance.
+See \l{scripting.html#accessing-child-qobjects}{Accessing Child QObjects}
+in the scripting documentation for details how objectName can be used from
+scripts.
+*/
+struct StaticQtMetaObject : public QObject
+{
+static const QMetaObject *get()
+{ return &static_cast<StaticQtMetaObject*> (0)->staticQtMetaObject; }
+};
+static bool qt_QmlQtModule_registered = false;
+void QDeclarativeEnginePrivate::defineModule()
+{
+qmlRegisterType<QDeclarativeComponent>("Qt",4,7,"Component");
+qmlRegisterType<QObject>("Qt",4,7,"QtObject");
+qmlRegisterType<QDeclarativeWorkerScript>("Qt",4,7,"WorkerScript");
+qmlRegisterType<QDeclarativeBinding>();
+}
+/*!
+\qmlclass Qt QDeclarativeEnginePrivate
+\brief The QML Global Qt Object
+The Qt object provides useful enums and functions from Qt, for use in all QML
+files. Note that you do note create instances of this type, but instead use
+the members of the global "Qt" object.
+\section1 Enums
+The Qt object contains all enums in the Qt namespace. For example, you can
+access the AlignLeft member of the Qt::AlignmentFlag enum with \c Qt.AlignLeft.
+For a full list of enums, see the \l{Qt Namespace} documentation.
+\section1 Types
+The Qt object also contains helper functions for creating objects of specific
+data types. This is primarily useful when setting the properties of an item
+when the property has one of the following types:
+\list
+\o Color
+\o Rect
+\o Point
+\o Size
+\o Vector3D
+\endlist
+There are also string based constructors for these types, see \l{qdeclarativebasictypes.html}{Qml Types}.
+\section1 Date/Time Formatters
+The Qt object contains several functions for formatting dates and times.
+\list
+\o \l{Qt::formatDateTime}{string Qt.formatDateTime(datetime date, variant format)
+\o \l{Qt::formatDate}{string Qt.formatDate(datetime date, variant format)
+\o \l{Qt::formatTime}{string Qt.formatTime(datetime date, variant format)
+\endlist
+The format specification is described at \l{Qt::formatDateTime}{Qt.formatDateTime}.
+\section1 Dynamic Object Creation
+The following functions on the global object allow you to dynamically create QML
+items from files or strings. See \l{Dynamic Object Management} for an overview
+of their use.
+\list
+\o \l{Qt::createComponent}{object Qt.createComponent(url)}
+\o \l{Qt::createQmlObject}{object Qt.createQmlObject(string qml, object parent, string filepath)}
+\endlist
+*/
+QDeclarativeEnginePrivate::QDeclarativeEnginePrivate(QDeclarativeEngine *e)
+: captureProperties(false), rootContext(0), currentExpression(0), isDebugging(false),
+outputWarningsToStdErr(true), contextClass(0), sharedContext(0), sharedScope(0),
+objectClass(0), valueTypeClass(0), globalClass(0), cleanup(0), erroredBindings(0),
+inProgressCreations(0), scriptEngine(this), workerScriptEngine(0), componentAttached(0),
+inBeginCreate(false), networkAccessManager(0), networkAccessManagerFactory(0),
+typeManager(e), importDatabase(e), uniqueId(1)
+{
+if (!qt_QmlQtModule_registered) {
+qt_QmlQtModule_registered = true;
+QDeclarativeItemModule::defineModule();
+QDeclarativeUtilModule::defineModule();
+QDeclarativeEnginePrivate::defineModule();
+QDeclarativeValueTypeFactory::registerValueTypes();
+}
+globalClass = new QDeclarativeGlobalScriptClass(&scriptEngine);
+}
+/*!
+\qmlmethod url Qt::resolvedUrl(url)
+This function returns \c url resolved relative to the URL of the
+caller.
+*/
+QUrl QDeclarativeScriptEngine::resolvedUrl(QScriptContext *context, const QUrl& url)
+{
+if (p) {
+QDeclarativeContextData *ctxt = QDeclarativeEnginePrivate::get(this)->getContext(context);
+Q_ASSERT(ctxt);
+return ctxt->resolvedUrl(url);
+}
+return baseUrl.resolved(url);
+}
+QDeclarativeScriptEngine::QDeclarativeScriptEngine(QDeclarativeEnginePrivate *priv)
+: p(priv), sqlQueryClass(0), namedNodeMapClass(0), nodeListClass(0)
+{
+// Note that all documentation for stuff put on the global object goes in
+// doc/src/declarative/globalobject.qdoc
+bool mainthread = priv != 0;
+QScriptValue qtObject =
+newQMetaObject(StaticQtMetaObject::get());
+globalObject().setProperty(QLatin1String("Qt"), qtObject);
+#ifndef QT_NO_DESKTOPSERVICES
+offlineStoragePath = QDesktopServices::storageLocation(QDesktopServices::DataLocation).replace(QLatin1Char('/'), QDir::separator())
++ QDir::separator() + QLatin1String("QML")
++ QDir::separator() + QLatin1String("OfflineStorage");
+#endif
+qt_add_qmlxmlhttprequest(this);
+qt_add_qmlsqldatabase(this);
+// XXX A Multimedia "Qt.Sound" class also needs to be made available,
+// XXX but we don't want a dependency in that cirection.
+// XXX When the above a done some better way, that way should also be
+// XXX used to add Qt.Sound class.
+//types
+if (mainthread)
+qtObject.setProperty(QLatin1String("include"), newFunction(QDeclarativeInclude::include, 2));
+else
+qtObject.setProperty(QLatin1String("include"), newFunction(QDeclarativeInclude::worker_include, 2));
+qtObject.setProperty(QLatin1String("isQtObject"), newFunction(QDeclarativeEnginePrivate::isQtObject, 1));
+qtObject.setProperty(QLatin1String("rgba"), newFunction(QDeclarativeEnginePrivate::rgba, 4));
+qtObject.setProperty(QLatin1String("hsla"), newFunction(QDeclarativeEnginePrivate::hsla, 4));
+qtObject.setProperty(QLatin1String("rect"), newFunction(QDeclarativeEnginePrivate::rect, 4));
+qtObject.setProperty(QLatin1String("point"), newFunction(QDeclarativeEnginePrivate::point, 2));
+qtObject.setProperty(QLatin1String("size"), newFunction(QDeclarativeEnginePrivate::size, 2));
+qtObject.setProperty(QLatin1String("vector3d"), newFunction(QDeclarativeEnginePrivate::vector3d, 3));
+if (mainthread) {
+//color helpers
+qtObject.setProperty(QLatin1String("lighter"), newFunction(QDeclarativeEnginePrivate::lighter, 1));
+qtObject.setProperty(QLatin1String("darker"), newFunction(QDeclarativeEnginePrivate::darker, 1));
+qtObject.setProperty(QLatin1String("tint"), newFunction(QDeclarativeEnginePrivate::tint, 2));
+}
+//date/time formatting
+qtObject.setProperty(QLatin1String("formatDate"),newFunction(QDeclarativeEnginePrivate::formatDate, 2));
+qtObject.setProperty(QLatin1String("formatTime"),newFunction(QDeclarativeEnginePrivate::formatTime, 2));
+qtObject.setProperty(QLatin1String("formatDateTime"),newFunction(QDeclarativeEnginePrivate::formatDateTime, 2));
+//misc methods
+qtObject.setProperty(QLatin1String("openUrlExternally"),newFunction(QDeclarativeEnginePrivate::desktopOpenUrl, 1));
+qtObject.setProperty(QLatin1String("fontFamilies"),newFunction(QDeclarativeEnginePrivate::fontFamilies, 0));
+qtObject.setProperty(QLatin1String("md5"),newFunction(QDeclarativeEnginePrivate::md5, 1));
+qtObject.setProperty(QLatin1String("btoa"),newFunction(QDeclarativeEnginePrivate::btoa, 1));
+qtObject.setProperty(QLatin1String("atob"),newFunction(QDeclarativeEnginePrivate::atob, 1));
+qtObject.setProperty(QLatin1String("quit"), newFunction(QDeclarativeEnginePrivate::quit, 0));
+qtObject.setProperty(QLatin1String("resolvedUrl"),newFunction(QDeclarativeScriptEngine::resolvedUrl, 1));
+if (mainthread) {
+qtObject.setProperty(QLatin1String("createQmlObject"),
+newFunction(QDeclarativeEnginePrivate::createQmlObject, 1));
+qtObject.setProperty(QLatin1String("createComponent"),
+newFunction(QDeclarativeEnginePrivate::createComponent, 1));
+}
+//firebug/webkit compat
+QScriptValue consoleObject = newObject();
+consoleObject.setProperty(QLatin1String("log"),newFunction(QDeclarativeEnginePrivate::consoleLog, 1));
+consoleObject.setProperty(QLatin1String("debug"),newFunction(QDeclarativeEnginePrivate::consoleLog, 1));
+globalObject().setProperty(QLatin1String("console"), consoleObject);
+// translation functions need to be installed
+// before the global script class is constructed (QTBUG-6437)
+installTranslatorFunctions();
+}
+QDeclarativeScriptEngine::~QDeclarativeScriptEngine()
+{
+delete sqlQueryClass;
+delete nodeListClass;
+delete namedNodeMapClass;
+}
+QScriptValue QDeclarativeScriptEngine::resolvedUrl(QScriptContext *ctxt, QScriptEngine *engine)
+{
+QString arg = ctxt->argument(0).toString();
+QUrl r = QDeclarativeScriptEngine::get(engine)->resolvedUrl(ctxt,QUrl(arg));
+return QScriptValue(r.toString());
+}
+QNetworkAccessManager *QDeclarativeScriptEngine::networkAccessManager()
+{
+return p->getNetworkAccessManager();
+}
+QDeclarativeEnginePrivate::~QDeclarativeEnginePrivate()
+{
+Q_ASSERT(inProgressCreations == 0);
+Q_ASSERT(bindValues.isEmpty());
+Q_ASSERT(parserStatus.isEmpty());
+while (cleanup) {
+QDeclarativeCleanup *c = cleanup;
+cleanup = c->next;
+if (cleanup) cleanup->prev = &cleanup;
+c->next = 0;
+c->prev = 0;
+c->clear();
+}
+delete rootContext;
+rootContext = 0;
+delete contextClass;
+contextClass = 0;
+delete objectClass;
+objectClass = 0;
+delete valueTypeClass;
+valueTypeClass = 0;
+delete typeNameClass;
+typeNameClass = 0;
+delete listClass;
+listClass = 0;
+delete globalClass;
+globalClass = 0;
+for(QHash<int, QDeclarativeCompiledData*>::ConstIterator iter = m_compositeTypes.constBegin(); iter != m_compositeTypes.constEnd(); ++iter)
+(*iter)->release();
+for(QHash<const QMetaObject *, QDeclarativePropertyCache *>::Iterator iter = propertyCache.begin(); iter != propertyCache.end(); ++iter)
+(*iter)->release();
+}
+void QDeclarativeEnginePrivate::clear(SimpleList<QDeclarativeAbstractBinding> &bvs)
+{
+bvs.clear();
+}
+void QDeclarativeEnginePrivate::clear(SimpleList<QDeclarativeParserStatus> &pss)
+{
+for (int ii = 0; ii < pss.count; ++ii) {
+QDeclarativeParserStatus *ps = pss.at(ii);
+if(ps)
+ps->d = 0;
+}
+pss.clear();
+}
+Q_GLOBAL_STATIC(QDeclarativeEngineDebugServer, qmlEngineDebugServer);
+void QDeclarativePrivate::qdeclarativeelement_destructor(QObject *o)
+{
+QObjectPrivate *p = QObjectPrivate::get(o);
+if (p->declarativeData) {
+QDeclarativeData *d = static_cast<QDeclarativeData*>(p->declarativeData);
+if (d->ownContext && d->context) {
+d->context->destroy();
+d->context = 0;
+}
+}
+}
+void QDeclarativeData::destroyed(QAbstractDeclarativeData *d, QObject *o)
+{
+static_cast<QDeclarativeData *>(d)->destroyed(o);
+}
+void QDeclarativeData::parentChanged(QAbstractDeclarativeData *d, QObject *o, QObject *p)
+{
+static_cast<QDeclarativeData *>(d)->parentChanged(o, p);
+}
+void QDeclarativeEnginePrivate::init()
+{
+Q_Q(QDeclarativeEngine);
+qRegisterMetaType<QVariant>("QVariant");
+qRegisterMetaType<QDeclarativeScriptString>("QDeclarativeScriptString");
+qRegisterMetaType<QScriptValue>("QScriptValue");
+qRegisterMetaType<QDeclarativeComponent::Status>("QDeclarativeComponent::Status");
+QDeclarativeData::init();
+contextClass = new QDeclarativeContextScriptClass(q);
+objectClass = new QDeclarativeObjectScriptClass(q);
+valueTypeClass = new QDeclarativeValueTypeScriptClass(q);
+typeNameClass = new QDeclarativeTypeNameScriptClass(q);
+listClass = new QDeclarativeListScriptClass(q);
+rootContext = new QDeclarativeContext(q,true);
+if (QCoreApplication::instance()->thread() == q->thread() &&
+QDeclarativeEngineDebugServer::isDebuggingEnabled()) {
+qmlEngineDebugServer();
+isDebugging = true;
+QDeclarativeEngineDebugServer::addEngine(q);
+}
+}
+QDeclarativeWorkerScriptEngine *QDeclarativeEnginePrivate::getWorkerScriptEngine()
+{
+Q_Q(QDeclarativeEngine);
+if (!workerScriptEngine)
+workerScriptEngine = new QDeclarativeWorkerScriptEngine(q);
+return workerScriptEngine;
+}
+/*!
+\class QDeclarativeEngine
+\since 4.7
+\brief The QDeclarativeEngine class provides an environment for instantiating QML components.
+\mainclass
+Each QML component is instantiated in a QDeclarativeContext.
+QDeclarativeContext's are essential for passing data to QML
+components.  In QML, contexts are arranged hierarchically and this
+hierarchy is managed by the QDeclarativeEngine.
+Prior to creating any QML components, an application must have
+created a QDeclarativeEngine to gain access to a QML context.  The
+following example shows how to create a simple Text item.
+\code
+QDeclarativeEngine engine;
+QDeclarativeComponent component(&engine);
+component.setData("import Qt 4.7\nText { text: \"Hello world!\" }", QUrl());
+QDeclarativeItem *item = qobject_cast<QDeclarativeItem *>(component.create());
+//add item to view, etc
+...
+\endcode
+In this case, the Text item will be created in the engine's
+\l {QDeclarativeEngine::rootContext()}{root context}.
+\sa QDeclarativeComponent QDeclarativeContext
+*/
+/*!
+Create a new QDeclarativeEngine with the given \a parent.
+*/
+QDeclarativeEngine::QDeclarativeEngine(QObject *parent)
+: QObject(*new QDeclarativeEnginePrivate(this), parent)
+{
+Q_D(QDeclarativeEngine);
+d->init();
+}
+/*!
+Destroys the QDeclarativeEngine.
+Any QDeclarativeContext's created on this engine will be
+invalidated, but not destroyed (unless they are parented to the
+QDeclarativeEngine object).
+*/
+QDeclarativeEngine::~QDeclarativeEngine()
+{
+Q_D(QDeclarativeEngine);
+if (d->isDebugging)
+QDeclarativeEngineDebugServer::remEngine(this);
+}
+/*! \fn void QDeclarativeEngine::quit()
+This signal is emitted when the QDeclarativeEngine quits.
+*/
+/*! \fn void QDeclarativeEngine::warnings(const QList<QDeclarativeError> &warnings)
+This signal is emitted when \a warnings messages are generated by QML.
+*/
+/*!
+Clears the engine's internal component cache.
+Normally the QDeclarativeEngine caches components loaded from qml
+files.  This method clears this cache and forces the component to be
+reloaded.
+*/
+void QDeclarativeEngine::clearComponentCache()
+{
+Q_D(QDeclarativeEngine);
+d->typeManager.clearCache();
+}
+/*!
+Returns the engine's root context.
+The root context is automatically created by the QDeclarativeEngine.
+Data that should be available to all QML component instances
+instantiated by the engine should be put in the root context.
+Additional data that should only be available to a subset of
+component instances should be added to sub-contexts parented to the
+root context.
+*/
+QDeclarativeContext *QDeclarativeEngine::rootContext()
+{
+Q_D(QDeclarativeEngine);
+return d->rootContext;
+}
+/*!
+Sets the \a factory to use for creating QNetworkAccessManager(s).
+QNetworkAccessManager is used for all network access by QML.  By
+implementing a factory it is possible to create custom
+QNetworkAccessManager with specialized caching, proxy and cookie
+support.
+The factory must be set before exceuting the engine.
+*/
+void QDeclarativeEngine::setNetworkAccessManagerFactory(QDeclarativeNetworkAccessManagerFactory *factory)
+{
+Q_D(QDeclarativeEngine);
+QMutexLocker locker(&d->mutex);
+d->networkAccessManagerFactory = factory;
+}
+/*!
+Returns the current QDeclarativeNetworkAccessManagerFactory.
+\sa setNetworkAccessManagerFactory()
+*/
+QDeclarativeNetworkAccessManagerFactory *QDeclarativeEngine::networkAccessManagerFactory() const
+{
+Q_D(const QDeclarativeEngine);
+return d->networkAccessManagerFactory;
+}
+QNetworkAccessManager *QDeclarativeEnginePrivate::createNetworkAccessManager(QObject *parent) const
+{
+QMutexLocker locker(&mutex);
+QNetworkAccessManager *nam;
+if (networkAccessManagerFactory) {
+nam = networkAccessManagerFactory->create(parent);
+} else {
+nam = new QNetworkAccessManager(parent);
+}
+return nam;
+}
+QNetworkAccessManager *QDeclarativeEnginePrivate::getNetworkAccessManager() const
+{
+Q_Q(const QDeclarativeEngine);
+if (!networkAccessManager)
+networkAccessManager = createNetworkAccessManager(const_cast<QDeclarativeEngine*>(q));
+return networkAccessManager;
+}
+/*!
+Returns a common QNetworkAccessManager which can be used by any QML
+element instantiated by this engine.
+If a QDeclarativeNetworkAccessManagerFactory has been set and a
+QNetworkAccessManager has not yet been created, the
+QDeclarativeNetworkAccessManagerFactory will be used to create the
+QNetworkAccessManager; otherwise the returned QNetworkAccessManager
+will have no proxy or cache set.
+\sa setNetworkAccessManagerFactory()
+*/
+QNetworkAccessManager *QDeclarativeEngine::networkAccessManager() const
+{
+Q_D(const QDeclarativeEngine);
+return d->getNetworkAccessManager();
+}
+/*!
+Sets the \a provider to use for images requested via the \e
+image: url scheme, with host \a providerId.
+QDeclarativeImageProvider allows images to be provided to QML
+asynchronously.  The image request will be run in a low priority
+thread.  This allows potentially costly image loading to be done in
+the background, without affecting the performance of the UI.
+Note that images loaded from a QDeclarativeImageProvider are cached
+by QPixmapCache, similar to any image loaded by QML.
+The QDeclarativeEngine assumes ownership of the provider.
+This example creates a provider with id \e colors:
+\snippet examples/declarative/cppextensions/imageprovider/imageprovider.cpp 0
+\snippet examples/declarative/cppextensions/imageprovider/imageprovider-example.qml 0
+\sa removeImageProvider()
+*/
+void QDeclarativeEngine::addImageProvider(const QString &providerId, QDeclarativeImageProvider *provider)
+{
+Q_D(QDeclarativeEngine);
+QMutexLocker locker(&d->mutex);
+d->imageProviders.insert(providerId, provider);
+}
+/*!
+Returns the QDeclarativeImageProvider set for \a providerId.
+*/
+QDeclarativeImageProvider *QDeclarativeEngine::imageProvider(const QString &providerId) const
+{
+Q_D(const QDeclarativeEngine);
+QMutexLocker locker(&d->mutex);
+return d->imageProviders.value(providerId);
+}
+/*!
+Removes the QDeclarativeImageProvider for \a providerId.
+Returns the provider if it was found; otherwise returns 0.
+\sa addImageProvider()
+*/
+void QDeclarativeEngine::removeImageProvider(const QString &providerId)
+{
+Q_D(QDeclarativeEngine);
+QMutexLocker locker(&d->mutex);
+delete d->imageProviders.take(providerId);
+}
+QImage QDeclarativeEnginePrivate::getImageFromProvider(const QUrl &url, QSize *size, const QSize& req_size)
+{
+QMutexLocker locker(&mutex);
+QImage image;
+QDeclarativeImageProvider *provider = imageProviders.value(url.host());
+if (provider)
+image = provider->request(url.path().mid(1), size, req_size);
+return image;
+}
+/*!
+Return the base URL for this engine.  The base URL is only used to
+resolve components when a relative URL is passed to the
+QDeclarativeComponent constructor.
+If a base URL has not been explicitly set, this method returns the
+application's current working directory.
+\sa setBaseUrl()
+*/
+QUrl QDeclarativeEngine::baseUrl() const
+{
+Q_D(const QDeclarativeEngine);
+if (d->baseUrl.isEmpty()) {
+return QUrl::fromLocalFile(QDir::currentPath() + QDir::separator());
+} else {
+return d->baseUrl;
+}
+}
+/*!
+Set the  base URL for this engine to \a url.
+\sa baseUrl()
+*/
+void QDeclarativeEngine::setBaseUrl(const QUrl &url)
+{
+Q_D(QDeclarativeEngine);
+d->baseUrl = url;
+}
+/*!
+Returns true if warning messages will be output to stderr in addition
+to being emitted by the warnings() signal, otherwise false.
+The default value is true.
+*/
+bool QDeclarativeEngine::outputWarningsToStandardError() const
+{
+Q_D(const QDeclarativeEngine);
+return d->outputWarningsToStdErr;
+}
+/*!
+Set whether warning messages will be output to stderr to \a enabled.
+If \a enabled is true, any warning messages generated by QML will be
+output to stderr and emitted by the warnings() signal.  If \a enabled
+is false, on the warnings() signal will be emitted.  This allows
+applications to handle warning output themselves.
+The default value is true.
+*/
+void QDeclarativeEngine::setOutputWarningsToStandardError(bool enabled)
+{
+Q_D(QDeclarativeEngine);
+d->outputWarningsToStdErr = enabled;
+}
+/*!
+Returns the QDeclarativeContext for the \a object, or 0 if no
+context has been set.
+When the QDeclarativeEngine instantiates a QObject, the context is
+set automatically.
+*/
+QDeclarativeContext *QDeclarativeEngine::contextForObject(const QObject *object)
+{
+if(!object)
+return 0;
+QObjectPrivate *priv = QObjectPrivate::get(const_cast<QObject *>(object));
+QDeclarativeData *data =
+static_cast<QDeclarativeData *>(priv->declarativeData);
+if (!data)
+return 0;
+else if (data->outerContext)
+return data->outerContext->asQDeclarativeContext();
+else
+return 0;
+}
+/*!
+Sets the QDeclarativeContext for the \a object to \a context.
+If the \a object already has a context, a warning is
+output, but the context is not changed.
+When the QDeclarativeEngine instantiates a QObject, the context is
+set automatically.
+*/
+void QDeclarativeEngine::setContextForObject(QObject *object, QDeclarativeContext *context)
+{
+if (!object || !context)
+return;
+QDeclarativeData *data = QDeclarativeData::get(object, true);
+if (data->context) {
+qWarning("QDeclarativeEngine::setContextForObject(): Object already has a QDeclarativeContext");
+return;
+}
+QDeclarativeContextData *contextData = QDeclarativeContextData::get(context);
+contextData->addObject(object);
+}
+/*!
+\enum QDeclarativeEngine::ObjectOwnership
+Ownership controls whether or not QML automatically destroys the
+QObject when the object is garbage collected by the JavaScript
+engine.  The two ownership options are:
+\value CppOwnership The object is owned by C++ code, and will
+never be deleted by QML.  The JavaScript destroy() method cannot be
+used on objects with CppOwnership.  This option is similar to
+QScriptEngine::QtOwnership.
+\value JavaScriptOwnership The object is owned by JavaScript.
+When the object is returned to QML as the return value of a method
+call or property access, QML will delete the object if there are no
+remaining JavaScript references to it and it has no
+QObject::parent().  This option is similar to
+QScriptEngine::ScriptOwnership.
+Generally an application doesn't need to set an object's ownership
+explicitly.  QML uses a heuristic to set the default object
+ownership.  By default, an object that is created by QML has
+JavaScriptOwnership.  The exception to this are the root objects
+created by calling QDeclarativeCompnent::create() or
+QDeclarativeComponent::beginCreate() which have CppOwnership by
+default.  The ownership of these root-level objects is considered to
+have been transfered to the C++ caller.
+Objects not-created by QML have CppOwnership by default.  The
+exception to this is objects returned from a C++ method call.  The
+ownership of these objects is passed to JavaScript.
+Calling setObjectOwnership() overrides the default ownership
+heuristic used by QML.
+*/
+/*!
+Sets the \a ownership of \a object.
+*/
+void QDeclarativeEngine::setObjectOwnership(QObject *object, ObjectOwnership ownership)
+{
+if (!object)
+return;
+// No need to do anything if CppOwnership and there is no QDeclarativeData as
+// the current ownership must be CppOwnership
+QDeclarativeData *ddata = QDeclarativeData::get(object, ownership == JavaScriptOwnership);
+if (!ddata)
+return;
+ddata->indestructible = (ownership == CppOwnership)?true:false;
+ddata->explicitIndestructibleSet = true;
+}
+/*!
+Returns the ownership of \a object.
+*/
+QDeclarativeEngine::ObjectOwnership QDeclarativeEngine::objectOwnership(QObject *object)
+{
+if (!object)
+return CppOwnership;
+QDeclarativeData *ddata = QDeclarativeData::get(object, false);
+if (!ddata)
+return CppOwnership;
+else
+return ddata->indestructible?CppOwnership:JavaScriptOwnership;
+}
+void qmlExecuteDeferred(QObject *object)
+{
+QDeclarativeData *data = QDeclarativeData::get(object);
+if (data && data->deferredComponent) {
+QDeclarativeEnginePrivate *ep = QDeclarativeEnginePrivate::get(data->context->engine);
+QDeclarativeComponentPrivate::ConstructionState state;
+QDeclarativeComponentPrivate::beginDeferred(ep, object, &state);
+data->deferredComponent->release();
+data->deferredComponent = 0;
+QDeclarativeComponentPrivate::complete(ep, &state);
+}
+}
+QDeclarativeContext *qmlContext(const QObject *obj)
+{
+return QDeclarativeEngine::contextForObject(obj);
+}
+QDeclarativeEngine *qmlEngine(const QObject *obj)
+{
+QDeclarativeContext *context = QDeclarativeEngine::contextForObject(obj);
+return context?context->engine():0;
+}
+QObject *qmlAttachedPropertiesObjectById(int id, const QObject *object, bool create)
+{
+QDeclarativeData *data = QDeclarativeData::get(object);
+if (!data)
+return 0; // Attached properties are only on objects created by QML
+QObject *rv = data->attachedProperties?data->attachedProperties->value(id):0;
+if (rv || !create)
+return rv;
+QDeclarativeAttachedPropertiesFunc pf = QDeclarativeMetaType::attachedPropertiesFuncById(id);
+if (!pf)
+return 0;
+rv = pf(const_cast<QObject *>(object));
+if (rv) {
+if (!data->attachedProperties)
+data->attachedProperties = new QHash<int, QObject *>();
+data->attachedProperties->insert(id, rv);
+}
+return rv;
+}
+QObject *qmlAttachedPropertiesObject(int *idCache, const QObject *object,
+const QMetaObject *attachedMetaObject, bool create)
+{
+if (*idCache == -1)
+*idCache = QDeclarativeMetaType::attachedPropertiesFuncId(attachedMetaObject);
+if (*idCache == -1 || !object)
+return 0;
+return qmlAttachedPropertiesObjectById(*idCache, object, create);
+}
+void QDeclarativeData::destroyed(QObject *object)
+{
+if (deferredComponent)
+deferredComponent->release();
+if (attachedProperties)
+delete attachedProperties;
+if (nextContextObject)
+nextContextObject->prevContextObject = prevContextObject;
+if (prevContextObject)
+*prevContextObject = nextContextObject;
+QDeclarativeAbstractBinding *binding = bindings;
+while (binding) {
+QDeclarativeAbstractBinding *next = binding->m_nextBinding;
+binding->m_prevBinding = 0;
+binding->m_nextBinding = 0;
+binding->destroy();
+binding = next;
+}
+if (bindingBits)
+free(bindingBits);
+if (propertyCache)
+propertyCache->release();
+if (ownContext && context)
+context->destroy();
+while (guards) {
+QDeclarativeGuard<QObject> *guard = guards;
+*guard = (QObject *)0;
+guard->objectDestroyed(object);
+}
+if (scriptValue)
+delete scriptValue;
+if (ownMemory)
+delete this;
+}
+void QDeclarativeData::parentChanged(QObject *, QObject *parent)
+{
+if (!parent && scriptValue) { delete scriptValue; scriptValue = 0; }
+}
+bool QDeclarativeData::hasBindingBit(int bit) const
+{
+if (bindingBitsSize > bit)
+return bindingBits[bit / 32] & (1 << (bit % 32));
+else
+return false;
+}
+void QDeclarativeData::clearBindingBit(int bit)
+{
+if (bindingBitsSize > bit)
+bindingBits[bit / 32] &= ~(1 << (bit % 32));
+}
+void QDeclarativeData::setBindingBit(QObject *obj, int bit)
+{
+if (bindingBitsSize <= bit) {
+int props = obj->metaObject()->propertyCount();
+Q_ASSERT(bit < props);
+int arraySize = (props + 31) / 32;
+int oldArraySize = bindingBitsSize / 32;
+bindingBits = (quint32 *)realloc(bindingBits,
+arraySize * sizeof(quint32));
+memset(bindingBits + oldArraySize,
+0x00,
+sizeof(quint32) * (arraySize - oldArraySize));
+bindingBitsSize = arraySize * 32;
+}
+bindingBits[bit / 32] |= (1 << (bit % 32));
+}
+/*!
+Creates a QScriptValue allowing you to use \a object in QML script.
+\a engine is the QDeclarativeEngine it is to be created in.
+The QScriptValue returned is a QtScript Object, not a QtScript QObject, due
+to the special needs of QML requiring more functionality than a standard
+QtScript QObject.
+*/
+QScriptValue QDeclarativeEnginePrivate::qmlScriptObject(QObject* object,
+QDeclarativeEngine* engine)
+{
+QDeclarativeEnginePrivate *enginePriv = QDeclarativeEnginePrivate::get(engine);
+return enginePriv->objectClass->newQObject(object);
+}
+/*!
+Returns the QDeclarativeContext for the executing QScript \a ctxt.
+*/
+QDeclarativeContextData *QDeclarativeEnginePrivate::getContext(QScriptContext *ctxt)
+{
+QScriptValue scopeNode = QScriptDeclarativeClass::scopeChainValue(ctxt, -3);
+Q_ASSERT(scopeNode.isValid());
+Q_ASSERT(QScriptDeclarativeClass::scriptClass(scopeNode) == contextClass);
+return contextClass->contextFromValue(scopeNode);
+}
+QString QDeclarativeEnginePrivate::urlToLocalFileOrQrc(const QUrl& url)
+{
+if (url.scheme().compare(QLatin1String("qrc"), Qt::CaseInsensitive) == 0) {
+if (url.authority().isEmpty())
+return QLatin1Char(':') + url.path();
+return QString();
+}
+return url.toLocalFile();
+}
+/*!
+\qmlmethod object Qt::createComponent(url)
+This function takes the URL of a QML file as its only argument. It returns
+a component object which can be used to create and load that QML file.
+Here is an example. Remember that QML files that might be loaded
+over the network cannot be expected to be ready immediately.
+\snippet doc/src/snippets/declarative/componentCreation.js 0
+\codeline
+\snippet doc/src/snippets/declarative/componentCreation.js 1
+If you are certain the files will be local, you could simplify to:
+\snippet doc/src/snippets/declarative/componentCreation.js 2
+The methods and properties of the \l {Component} element are defined in its own
+page, but when using it dynamically only two methods are usually used.
+\l {Component::createObject()}{Component.createObject()} returns the created object or \c null if there is an error.
+If there is an error, \l {Component::errorString()}{Component.errorString()} describes
+the error that occurred. Note that createObject() takes exactly one argument, which is set
+to the parent of the created object. Graphical objects without a parent will not appear
+on the scene, but if you do not wish to parent the item at this point you can safely pass
+in null.
+If you want to just create an arbitrary string of QML, instead of
+loading a QML file, consider the \l{Qt.createQmlObject(string qml, object parent, string filepath)}{Qt.createQmlObject()} function.
+*/
+QScriptValue QDeclarativeEnginePrivate::createComponent(QScriptContext *ctxt, QScriptEngine *engine)
+{
+QDeclarativeEnginePrivate *activeEnginePriv =
+static_cast<QDeclarativeScriptEngine*>(engine)->p;
+QDeclarativeEngine* activeEngine = activeEnginePriv->q_func();
+QDeclarativeContextData* context = activeEnginePriv->getContext(ctxt);
+Q_ASSERT(context);
+if(ctxt->argumentCount() != 1) {
+return ctxt->throwError(QLatin1String("Qt.createComponent(): Invalid arguments"));
+}else{
+QString arg = ctxt->argument(0).toString();
+if (arg.isEmpty())
+return engine->nullValue();
+QUrl url = QUrl(context->resolvedUrl(QUrl(arg)));
+QDeclarativeComponent *c = new QDeclarativeComponent(activeEngine, url, activeEngine);
+QDeclarativeComponentPrivate::get(c)->creationContext = context;
+QDeclarativeData::get(c, true)->setImplicitDestructible();
+return activeEnginePriv->objectClass->newQObject(c, qMetaTypeId<QDeclarativeComponent*>());
+}
+}
+/*!
+\qmlmethod object Qt::createQmlObject(string qml, object parent, string filepath)
+Creates a new object from the specified string of QML. It requires a
+second argument, which is the id of an existing QML object to use as
+the new object's parent. If a third argument is provided, this is used
+for error reporting as the filepath that the QML came from.
+Example (where \c targetItem is the id of an existing QML item):
+\snippet doc/src/snippets/declarative/createQmlObject.qml 0
+This function is intended for use inside QML only. It is intended to behave
+similarly to eval, but for creating QML elements.
+Returns the created object, \c or null if there is an error. In the case of an
+error, a QtScript Error object is thrown. This object has the additional property,
+qmlErrors, which is an array of all the errors encountered when trying to execute the
+QML. Each object in the array has the members \c lineNumber, \c columnNumber, \c fileName and \c message.
+Note that this function returns immediately, and therefore may not work if
+the QML loads new components. If you are trying to load a new component,
+for example from a QML file, consider the \l{Qt.createComponent(url file)}{Qt.createComponent()} function
+instead. 'New components' refers to external QML files that have not yet
+been loaded, and so it is safe to use \c Qt.createQmlObject() to load built-in
+components.
+*/
+QScriptValue QDeclarativeEnginePrivate::createQmlObject(QScriptContext *ctxt, QScriptEngine *engine)
+{
+QDeclarativeEnginePrivate *activeEnginePriv =
+static_cast<QDeclarativeScriptEngine*>(engine)->p;
+QDeclarativeEngine* activeEngine = activeEnginePriv->q_func();
+if(ctxt->argumentCount() < 2 || ctxt->argumentCount() > 3)
+return ctxt->throwError(QLatin1String("Qt.createQmlObject(): Invalid arguments"));
+QDeclarativeContextData* context = activeEnginePriv->getContext(ctxt);
+Q_ASSERT(context);
+QString qml = ctxt->argument(0).toString();
+if (qml.isEmpty())
+return engine->nullValue();
+QUrl url;
+if(ctxt->argumentCount() > 2)
+url = QUrl(ctxt->argument(2).toString());
+else
+url = QUrl(QLatin1String("inline"));
+if (url.isValid() && url.isRelative())
+url = context->resolvedUrl(url);
+QObject *parentArg = activeEnginePriv->objectClass->toQObject(ctxt->argument(1));
+if(!parentArg)
+return ctxt->throwError(QLatin1String("Qt.createQmlObject(): Missing parent object"));
+QDeclarativeComponent component(activeEngine);
+component.setData(qml.toUtf8(), url);
+if(component.isError()) {
+QList<QDeclarativeError> errors = component.errors();
+QString errstr = QLatin1String("Qt.createQmlObject() failed to create object: ");
+QScriptValue arr = ctxt->engine()->newArray(errors.length());
+int i = 0;
+foreach (const QDeclarativeError &error, errors){
+errstr += QLatin1String("    ") + error.toString() + QLatin1String("\n");
+QScriptValue qmlErrObject = ctxt->engine()->newObject();
+qmlErrObject.setProperty(QLatin1String("lineNumber"), QScriptValue(error.line()));
+qmlErrObject.setProperty(QLatin1String("columnNumber"), QScriptValue(error.column()));
+qmlErrObject.setProperty(QLatin1String("fileName"), QScriptValue(error.url().toString()));
+qmlErrObject.setProperty(QLatin1String("message"), QScriptValue(error.description()));
+arr.setProperty(i++, qmlErrObject);
+}
+QScriptValue err = ctxt->throwError(errstr);
+err.setProperty(QLatin1String("qmlErrors"),arr);
+return err;
+}
+if (!component.isReady())
+return ctxt->throwError(QLatin1String("Qt.createQmlObject(): Component is not ready"));
+QObject *obj = component.beginCreate(context->asQDeclarativeContext());
+if(obj)
+QDeclarativeData::get(obj, true)->setImplicitDestructible();
+component.completeCreate();
+if(component.isError()) {
+QList<QDeclarativeError> errors = component.errors();
+QString errstr = QLatin1String("Qt.createQmlObject() failed to create object: ");
+QScriptValue arr = ctxt->engine()->newArray(errors.length());
+int i = 0;
+foreach (const QDeclarativeError &error, errors){
+errstr += QLatin1String("    ") + error.toString() + QLatin1String("\n");
+QScriptValue qmlErrObject = ctxt->engine()->newObject();
+qmlErrObject.setProperty(QLatin1String("lineNumber"), QScriptValue(error.line()));
+qmlErrObject.setProperty(QLatin1String("columnNumber"), QScriptValue(error.column()));
+qmlErrObject.setProperty(QLatin1String("fileName"), QScriptValue(error.url().toString()));
+qmlErrObject.setProperty(QLatin1String("message"), QScriptValue(error.description()));
+arr.setProperty(i++, qmlErrObject);
+}
+QScriptValue err = ctxt->throwError(errstr);
+err.setProperty(QLatin1String("qmlErrors"),arr);
+return err;
+}
+Q_ASSERT(obj);
+obj->setParent(parentArg);
+QGraphicsObject* gobj = qobject_cast<QGraphicsObject*>(obj);
+QGraphicsObject* gparent = qobject_cast<QGraphicsObject*>(parentArg);
+if(gobj && gparent)
+gobj->setParentItem(gparent);
+QDeclarativeData::get(obj, true)->setImplicitDestructible();
+return activeEnginePriv->objectClass->newQObject(obj, QMetaType::QObjectStar);
+}
+/*!
+\qmlmethod bool Qt::isQtObject(object)
+Returns true if \c object is a valid reference to a Qt or QML object, otherwise false.
+*/
+QScriptValue QDeclarativeEnginePrivate::isQtObject(QScriptContext *ctxt, QScriptEngine *engine)
+{
+if (ctxt->argumentCount() == 0)
+return QScriptValue(engine, false);
+return QScriptValue(engine, 0 != ctxt->argument(0).toQObject());
+}
+/*!
+\qmlmethod Qt::vector3d(real x, real y, real z)
+This function returns a Vector3D with the specified \c x, \c y and \c z.
+*/
+QScriptValue QDeclarativeEnginePrivate::vector3d(QScriptContext *ctxt, QScriptEngine *engine)
+{
+if(ctxt->argumentCount() != 3)
+return ctxt->throwError(QLatin1String("Qt.vector(): Invalid arguments"));
+qsreal x = ctxt->argument(0).toNumber();
+qsreal y = ctxt->argument(1).toNumber();
+qsreal z = ctxt->argument(2).toNumber();
+return QDeclarativeEnginePrivate::get(engine)->scriptValueFromVariant(qVariantFromValue(QVector3D(x, y, z)));
+}
+/*!
+\qmlmethod string Qt::formatDate(datetime date, variant format)
+This function returns the string representation of \c date, formatted according to \c format.
+*/
+QScriptValue QDeclarativeEnginePrivate::formatDate(QScriptContext*ctxt, QScriptEngine*engine)
+{
+int argCount = ctxt->argumentCount();
+if(argCount == 0 || argCount > 2)
+return ctxt->throwError(QLatin1String("Qt.formatDate(): Invalid arguments"));
+QDate date = ctxt->argument(0).toDateTime().date();
+Qt::DateFormat enumFormat = Qt::DefaultLocaleShortDate;
+if (argCount == 2) {
+if (ctxt->argument(1).isString()) {
+QString format = ctxt->argument(1).toString();
+return engine->newVariant(qVariantFromValue(date.toString(format)));
+} else if (ctxt->argument(1).isNumber()) {
+enumFormat = Qt::DateFormat(ctxt->argument(1).toUInt32());
+} else {
+return ctxt->throwError(QLatin1String("Qt.formatDate(): Invalid date format"));
+}
+}
+return engine->newVariant(qVariantFromValue(date.toString(enumFormat)));
+}
+/*!
+\qmlmethod string Qt::formatTime(datetime time, variant format)
+This function returns the string representation of \c time, formatted according to \c format.
+See Qt::formatDateTime for how to define \c format.
+*/
+QScriptValue QDeclarativeEnginePrivate::formatTime(QScriptContext*ctxt, QScriptEngine*engine)
+{
+int argCount = ctxt->argumentCount();
+if(argCount == 0 || argCount > 2)
+return ctxt->throwError(QLatin1String("Qt.formatTime(): Invalid arguments"));
+QTime date = ctxt->argument(0).toDateTime().time();
+Qt::DateFormat enumFormat = Qt::DefaultLocaleShortDate;
+if (argCount == 2) {
+if (ctxt->argument(1).isString()) {
+QString format = ctxt->argument(1).toString();
+return engine->newVariant(qVariantFromValue(date.toString(format)));
+} else if (ctxt->argument(1).isNumber()) {
+enumFormat = Qt::DateFormat(ctxt->argument(1).toUInt32());
+} else {
+return ctxt->throwError(QLatin1String("Qt.formatTime(): Invalid time format"));
+}
+}
+return engine->newVariant(qVariantFromValue(date.toString(enumFormat)));
+}
+/*!
+\qmlmethod string Qt::formatDateTime(datetime dateTime, variant format)
+This function returns the string representation of \c dateTime, formatted according to \c format.
+\c format for the date/time formatting functions is be specified as follows.
+These expressions may be used for the date:
+\table
+\header \i Expression \i Output
+\row \i d \i the day as number without a leading zero (1 to 31)
+\row \i dd \i the day as number with a leading zero (01 to 31)
+\row \i ddd
+\i the abbreviated localized day name (e.g. 'Mon' to 'Sun').
+Uses QDate::shortDayName().
+\row \i dddd
+\i the long localized day name (e.g. 'Monday' to 'Qt::Sunday').
+Uses QDate::longDayName().
+\row \i M \i the month as number without a leading zero (1-12)
+\row \i MM \i the month as number with a leading zero (01-12)
+\row \i MMM
+\i the abbreviated localized month name (e.g. 'Jan' to 'Dec').
+Uses QDate::shortMonthName().
+\row \i MMMM
+\i the long localized month name (e.g. 'January' to 'December').
+Uses QDate::longMonthName().
+\row \i yy \i the year as two digit number (00-99)
+\row \i yyyy \i the year as four digit number
+\endtable
+These expressions may be used for the time:
+\table
+\header \i Expression \i Output
+\row \i h
+\i the hour without a leading zero (0 to 23 or 1 to 12 if AM/PM display)
+\row \i hh
+\i the hour with a leading zero (00 to 23 or 01 to 12 if AM/PM display)
+\row \i m \i the minute without a leading zero (0 to 59)
+\row \i mm \i the minute with a leading zero (00 to 59)
+\row \i s \i the second without a leading zero (0 to 59)
+\row \i ss \i the second with a leading zero (00 to 59)
+\row \i z \i the milliseconds without leading zeroes (0 to 999)
+\row \i zzz \i the milliseconds with leading zeroes (000 to 999)
+\row \i AP
+\i use AM/PM display. \e AP will be replaced by either "AM" or "PM".
+\row \i ap
+\i use am/pm display. \e ap will be replaced by either "am" or "pm".
+\endtable
+All other input characters will be ignored. Any sequence of characters that
+are enclosed in singlequotes will be treated as text and not be used as an
+expression. Two consecutive singlequotes ("''") are replaced by a singlequote
+in the output.
+Example format strings (assumed that the date and time is 21 May 2001
+14:13:09):
+\table
+\header \i Format       \i Result
+\row \i dd.MM.yyyy      \i 21.05.2001
+\row \i ddd MMMM d yy   \i Tue May 21 01
+\row \i hh:mm:ss.zzz    \i 14:13:09.042
+\row \i h:m:s ap        \i 2:13:9 pm
+\endtable
+If no format is specified the locale's short format is used. Alternatively, you can specify
+\c Qt.DefaultLocaleLongDate to get the locale's long format.
+*/
+QScriptValue QDeclarativeEnginePrivate::formatDateTime(QScriptContext*ctxt, QScriptEngine*engine)
+{
+int argCount = ctxt->argumentCount();
+if(argCount == 0 || argCount > 2)
+return ctxt->throwError(QLatin1String("Qt.formatDateTime(): Invalid arguments"));
+QDateTime date = ctxt->argument(0).toDateTime();
+Qt::DateFormat enumFormat = Qt::DefaultLocaleShortDate;
+if (argCount == 2) {
+if (ctxt->argument(1).isString()) {
+QString format = ctxt->argument(1).toString();
+return engine->newVariant(qVariantFromValue(date.toString(format)));
+} else if (ctxt->argument(1).isNumber()) {
+enumFormat = Qt::DateFormat(ctxt->argument(1).toUInt32());
+} else {
+return ctxt->throwError(QLatin1String("Qt.formatDateTime(): Invalid datetime format"));
+}
+}
+return engine->newVariant(qVariantFromValue(date.toString(enumFormat)));
+}
+/*!
+\qmlmethod color Qt::rgba(real red, real green, real blue, real alpha)
+This function returns a Color with the specified \c red, \c green, \c blue and \c alpha components.
+All components should be in the range 0-1 inclusive.
+*/
+QScriptValue QDeclarativeEnginePrivate::rgba(QScriptContext *ctxt, QScriptEngine *engine)
+{
+int argCount = ctxt->argumentCount();
+if(argCount < 3 || argCount > 4)
+return ctxt->throwError(QLatin1String("Qt.rgba(): Invalid arguments"));
+qsreal r = ctxt->argument(0).toNumber();
+qsreal g = ctxt->argument(1).toNumber();
+qsreal b = ctxt->argument(2).toNumber();
+qsreal a = (argCount == 4) ? ctxt->argument(3).toNumber() : 1;
+if (r < 0.0) r=0.0;
+if (r > 1.0) r=1.0;
+if (g < 0.0) g=0.0;
+if (g > 1.0) g=1.0;
+if (b < 0.0) b=0.0;
+if (b > 1.0) b=1.0;
+if (a < 0.0) a=0.0;
+if (a > 1.0) a=1.0;
+return qScriptValueFromValue(engine, qVariantFromValue(QColor::fromRgbF(r, g, b, a)));
+}
+/*!
+\qmlmethod color Qt::hsla(real hue, real saturation, real lightness, real alpha)
+This function returns a Color with the specified \c hue, \c saturation, \c lightness and \c alpha components.
+All components should be in the range 0-1 inclusive.
+*/
+QScriptValue QDeclarativeEnginePrivate::hsla(QScriptContext *ctxt, QScriptEngine *engine)
+{
+int argCount = ctxt->argumentCount();
+if(argCount < 3 || argCount > 4)
+return ctxt->throwError(QLatin1String("Qt.hsla(): Invalid arguments"));
+qsreal h = ctxt->argument(0).toNumber();
+qsreal s = ctxt->argument(1).toNumber();
+qsreal l = ctxt->argument(2).toNumber();
+qsreal a = (argCount == 4) ? ctxt->argument(3).toNumber() : 1;
+if (h < 0.0) h=0.0;
+if (h > 1.0) h=1.0;
+if (s < 0.0) s=0.0;
+if (s > 1.0) s=1.0;
+if (l < 0.0) l=0.0;
+if (l > 1.0) l=1.0;
+if (a < 0.0) a=0.0;
+if (a > 1.0) a=1.0;
+return qScriptValueFromValue(engine, qVariantFromValue(QColor::fromHslF(h, s, l, a)));
+}
+/*!
+\qmlmethod rect Qt::rect(int x, int y, int width, int height)
+This function returns a Rect with the top-left corner at \c x, \c y and the specified \c width and \c height.
+*/
+QScriptValue QDeclarativeEnginePrivate::rect(QScriptContext *ctxt, QScriptEngine *engine)
+{
+if(ctxt->argumentCount() != 4)
+return ctxt->throwError(QLatin1String("Qt.rect(): Invalid arguments"));
+qsreal x = ctxt->argument(0).toNumber();
+qsreal y = ctxt->argument(1).toNumber();
+qsreal w = ctxt->argument(2).toNumber();
+qsreal h = ctxt->argument(3).toNumber();
+if (w < 0 || h < 0)
+return engine->nullValue();
+return QDeclarativeEnginePrivate::get(engine)->scriptValueFromVariant(qVariantFromValue(QRectF(x, y, w, h)));
+}
+/*!
+\qmlmethod point Qt::point(int x, int y)
+This function returns a Point with the specified \c x and \c y coordinates.
+*/
+QScriptValue QDeclarativeEnginePrivate::point(QScriptContext *ctxt, QScriptEngine *engine)
+{
+if(ctxt->argumentCount() != 2)
+return ctxt->throwError(QLatin1String("Qt.point(): Invalid arguments"));
+qsreal x = ctxt->argument(0).toNumber();
+qsreal y = ctxt->argument(1).toNumber();
+return QDeclarativeEnginePrivate::get(engine)->scriptValueFromVariant(qVariantFromValue(QPointF(x, y)));
+}
+/*!
+\qmlmethod Qt::size(int width, int height)
+This function returns as Size with the specified \c width and \c height.
+*/
+QScriptValue QDeclarativeEnginePrivate::size(QScriptContext *ctxt, QScriptEngine *engine)
+{
+if(ctxt->argumentCount() != 2)
+return ctxt->throwError(QLatin1String("Qt.size(): Invalid arguments"));
+qsreal w = ctxt->argument(0).toNumber();
+qsreal h = ctxt->argument(1).toNumber();
+return QDeclarativeEnginePrivate::get(engine)->scriptValueFromVariant(qVariantFromValue(QSizeF(w, h)));
+}
+/*!
+\qmlmethod color Qt::lighter(color baseColor, real factor)
+This function returns a color lighter than \c baseColor by the \c factor provided.
+If the factor is greater than 1.0, this functions returns a lighter color.
+Setting factor to 1.5 returns a color that is 50% brighter. If the factor is less than 1.0,
+the return color is darker, but we recommend using the Qt.darker() function for this purpose.
+If the factor is 0 or negative, the return value is unspecified.
+The function converts the current RGB color to HSV, multiplies the value (V) component
+by factor and converts the color back to RGB.
+If \c factor is not supplied, returns a color 50% lighter than \c baseColor (factor 1.5).
+*/
+QScriptValue QDeclarativeEnginePrivate::lighter(QScriptContext *ctxt, QScriptEngine *engine)
+{
+if(ctxt->argumentCount() != 1 && ctxt->argumentCount() != 2)
+return ctxt->throwError(QLatin1String("Qt.lighter(): Invalid arguments"));
+QVariant v = ctxt->argument(0).toVariant();
+QColor color;
+if (v.userType() == QVariant::Color)
+color = v.value<QColor>();
+else if (v.userType() == QVariant::String) {
+bool ok;
+color = QDeclarativeStringConverters::colorFromString(v.toString(), &ok);
+if (!ok)
+return engine->nullValue();
+} else
+return engine->nullValue();
+qsreal factor = 1.5;
+if (ctxt->argumentCount() == 2)
+factor = ctxt->argument(1).toNumber();
+color = color.lighter(int(qRound(factor*100.)));
+return qScriptValueFromValue(engine, qVariantFromValue(color));
+}
+/*!
+\qmlmethod color Qt::darker(color baseColor, real factor)
+This function returns a color darker than \c baseColor by the \c factor provided.
+If the factor is greater than 1.0, this function returns a darker color.
+Setting factor to 3.0 returns a color that has one-third the brightness.
+If the factor is less than 1.0, the return color is lighter, but we recommend using
+the Qt.lighter() function for this purpose. If the factor is 0 or negative, the return
+value is unspecified.
+The function converts the current RGB color to HSV, divides the value (V) component
+by factor and converts the color back to RGB.
+If \c factor is not supplied, returns a color 50% darker than \c baseColor (factor 2.0).
+*/
+QScriptValue QDeclarativeEnginePrivate::darker(QScriptContext *ctxt, QScriptEngine *engine)
+{
+if(ctxt->argumentCount() != 1 && ctxt->argumentCount() != 2)
+return ctxt->throwError(QLatin1String("Qt.darker(): Invalid arguments"));
+QVariant v = ctxt->argument(0).toVariant();
+QColor color;
+if (v.userType() == QVariant::Color)
+color = v.value<QColor>();
+else if (v.userType() == QVariant::String) {
+bool ok;
+color = QDeclarativeStringConverters::colorFromString(v.toString(), &ok);
+if (!ok)
+return engine->nullValue();
+} else
+return engine->nullValue();
+qsreal factor = 2.0;
+if (ctxt->argumentCount() == 2)
+factor = ctxt->argument(1).toNumber();
+color = color.darker(int(qRound(factor*100.)));
+return qScriptValueFromValue(engine, qVariantFromValue(color));
+}
+/*!
+\qmlmethod bool Qt::openUrlExternally(url target)
+This function attempts to open the specified \c target url in an external application, based on the user's desktop preferences. It will return true if it succeeds, and false otherwise.
+*/
+QScriptValue QDeclarativeEnginePrivate::desktopOpenUrl(QScriptContext *ctxt, QScriptEngine *e)
+{
+if(ctxt->argumentCount() < 1)
+return QScriptValue(e, false);
+bool ret = false;
+#ifndef QT_NO_DESKTOPSERVICES
+ret = QDesktopServices::openUrl(QUrl(ctxt->argument(0).toString()));
+#endif
+return QScriptValue(e, ret);
+}
+/*!
+\qmlmethod list<string> Qt::fontFamilies()
+This function returns a list of the font families available to the application.
+*/
+QScriptValue QDeclarativeEnginePrivate::fontFamilies(QScriptContext *ctxt, QScriptEngine *e)
+{
+if(ctxt->argumentCount() != 0)
+return ctxt->throwError(QLatin1String("Qt.fontFamilies(): Invalid arguments"));
+QDeclarativeEnginePrivate *p = QDeclarativeEnginePrivate::get(e);
+QFontDatabase database;
+return p->scriptValueFromVariant(database.families());
+}
+/*!
+\qmlmethod string Qt::md5(data)
+This function returns a hex string of the md5 hash of \c data.
+*/
+QScriptValue QDeclarativeEnginePrivate::md5(QScriptContext *ctxt, QScriptEngine *)
+{
+if (ctxt->argumentCount() != 1)
+return ctxt->throwError(QLatin1String("Qt.md5(): Invalid arguments"));
+QByteArray data = ctxt->argument(0).toString().toUtf8();
+QByteArray result = QCryptographicHash::hash(data, QCryptographicHash::Md5);
+return QScriptValue(QLatin1String(result.toHex()));
+}
+/*!
+\qmlmethod string Qt::btoa(data)
+Binary to ASCII - this function returns a base64 encoding of \c data.
+*/
+QScriptValue QDeclarativeEnginePrivate::btoa(QScriptContext *ctxt, QScriptEngine *)
+{
+if (ctxt->argumentCount() != 1)
+return ctxt->throwError(QLatin1String("Qt.btoa(): Invalid arguments"));
+QByteArray data = ctxt->argument(0).toString().toUtf8();
+return QScriptValue(QLatin1String(data.toBase64()));
+}
+/*!
+\qmlmethod string Qt::atob(data)
+ASCII to binary - this function returns a base64 decoding of \c data.
+*/
+QScriptValue QDeclarativeEnginePrivate::atob(QScriptContext *ctxt, QScriptEngine *)
+{
+if (ctxt->argumentCount() != 1)
+return ctxt->throwError(QLatin1String("Qt.atob(): Invalid arguments"));
+QByteArray data = ctxt->argument(0).toString().toUtf8();
+return QScriptValue(QLatin1String(QByteArray::fromBase64(data)));
+}
+QScriptValue QDeclarativeEnginePrivate::consoleLog(QScriptContext *ctxt, QScriptEngine *e)
+{
+if(ctxt->argumentCount() < 1)
+return e->newVariant(QVariant(false));
+QByteArray msg;
+for (int i=0; i<ctxt->argumentCount(); ++i) {
+if (!msg.isEmpty()) msg += ' ';
+msg += ctxt->argument(i).toString().toLocal8Bit();
+// does not support firebug "%[a-z]" formatting, since firebug really
+// does just ignore the format letter, which makes it pointless.
+}
+qDebug("%s",msg.constData());
+return e->newVariant(QVariant(true));
+}
+void QDeclarativeEnginePrivate::sendQuit()
+{
+Q_Q(QDeclarativeEngine);
+emit q->quit();
+}
+static void dumpwarning(const QDeclarativeError &error)
+{
+qWarning().nospace() << qPrintable(error.toString());
+}
+static void dumpwarning(const QList<QDeclarativeError> &errors)
+{
+for (int ii = 0; ii < errors.count(); ++ii)
+dumpwarning(errors.at(ii));
+}
+void QDeclarativeEnginePrivate::warning(const QDeclarativeError &error)
+{
+Q_Q(QDeclarativeEngine);
+q->warnings(QList<QDeclarativeError>() << error);
+if (outputWarningsToStdErr)
+dumpwarning(error);
+}
+void QDeclarativeEnginePrivate::warning(const QList<QDeclarativeError> &errors)
+{
+Q_Q(QDeclarativeEngine);
+q->warnings(errors);
+if (outputWarningsToStdErr)
+dumpwarning(errors);
+}
+void QDeclarativeEnginePrivate::warning(QDeclarativeEngine *engine, const QDeclarativeError &error)
+{
+if (engine)
+QDeclarativeEnginePrivate::get(engine)->warning(error);
+else
+dumpwarning(error);
+}
+void QDeclarativeEnginePrivate::warning(QDeclarativeEngine *engine, const QList<QDeclarativeError> &error)
+{
+if (engine)
+QDeclarativeEnginePrivate::get(engine)->warning(error);
+else
+dumpwarning(error);
+}
+void QDeclarativeEnginePrivate::warning(QDeclarativeEnginePrivate *engine, const QDeclarativeError &error)
+{
+if (engine)
+engine->warning(error);
+else
+dumpwarning(error);
+}
+void QDeclarativeEnginePrivate::warning(QDeclarativeEnginePrivate *engine, const QList<QDeclarativeError> &error)
+{
+if (engine)
+engine->warning(error);
+else
+dumpwarning(error);
+}
+/*!
+\qmlmethod Qt::quit()
+This function causes the QDeclarativeEngine::quit() signal to be emitted.
+Within the \l {Qt Declarative UI Runtime}{qml} application this causes the
+launcher application to exit.
+*/
+QScriptValue QDeclarativeEnginePrivate::quit(QScriptContext * /*ctxt*/, QScriptEngine *e)
+{
+QDeclarativeEnginePrivate *qe = get (e);
+qe->sendQuit();
+return QScriptValue();
+}
+/*!
+\qmlmethod color Qt::tint(color baseColor, color tintColor)
+This function allows tinting one color with another.
+The tint color should usually be mostly transparent, or you will not be able to see the underlying color. The below example provides a slight red tint by having the tint color be pure red which is only 1/16th opaque.
+\qml
+Rectangle { x: 0; width: 80; height: 80; color: "lightsteelblue" }
+Rectangle { x: 100; width: 80; height: 80; color: Qt.tint("lightsteelblue", "#10FF0000") }
+\endqml
+\image declarative-rect_tint.png
+Tint is most useful when a subtle change is intended to be conveyed due to some event; you can then use tinting to more effectively tune the visible color.
+*/
+QScriptValue QDeclarativeEnginePrivate::tint(QScriptContext *ctxt, QScriptEngine *engine)
+{
+if(ctxt->argumentCount() != 2)
+return ctxt->throwError(QLatin1String("Qt.tint(): Invalid arguments"));
+//get color
+QVariant v = ctxt->argument(0).toVariant();
+QColor color;
+if (v.userType() == QVariant::Color)
+color = v.value<QColor>();
+else if (v.userType() == QVariant::String) {
+bool ok;
+color = QDeclarativeStringConverters::colorFromString(v.toString(), &ok);
+if (!ok)
+return engine->nullValue();
+} else
+return engine->nullValue();
+//get tint color
+v = ctxt->argument(1).toVariant();
+QColor tintColor;
+if (v.userType() == QVariant::Color)
+tintColor = v.value<QColor>();
+else if (v.userType() == QVariant::String) {
+bool ok;
+tintColor = QDeclarativeStringConverters::colorFromString(v.toString(), &ok);
+if (!ok)
+return engine->nullValue();
+} else
+return engine->nullValue();
+//tint
+QColor finalColor;
+int a = tintColor.alpha();
+if (a == 0xFF)
+finalColor = tintColor;
+else if (a == 0x00)
+finalColor = color;
+else {
+qreal a = tintColor.alphaF();
+qreal inv_a = 1.0 - a;
+finalColor.setRgbF(tintColor.redF() * a + color.redF() * inv_a,
+tintColor.greenF() * a + color.greenF() * inv_a,
+tintColor.blueF() * a + color.blueF() * inv_a,
+a + inv_a * color.alphaF());
+}
+return qScriptValueFromValue(engine, qVariantFromValue(finalColor));
+}
+QScriptValue QDeclarativeEnginePrivate::scriptValueFromVariant(const QVariant &val)
+{
+if (val.userType() == qMetaTypeId<QDeclarativeListReference>()) {
+QDeclarativeListReferencePrivate *p =
+QDeclarativeListReferencePrivate::get((QDeclarativeListReference*)val.constData());
+if (p->object) {
+return listClass->newList(p->property, p->propertyType);
+} else {
+return scriptEngine.nullValue();
+}
+} else if (val.userType() == qMetaTypeId<QList<QObject *> >()) {
+const QList<QObject *> &list = *(QList<QObject *>*)val.constData();
+QScriptValue rv = scriptEngine.newArray(list.count());
+for (int ii = 0; ii < list.count(); ++ii) {
+QObject *object = list.at(ii);
+rv.setProperty(ii, objectClass->newQObject(object));
+}
+return rv;
+} else if (QDeclarativeValueType *vt = valueTypes[val.userType()]) {
+return valueTypeClass->newObject(val, vt);
+}
+bool objOk;
+QObject *obj = QDeclarativeMetaType::toQObject(val, &objOk);
+if (objOk) {
+return objectClass->newQObject(obj);
+} else {
+return qScriptValueFromValue(&scriptEngine, val);
+}
+}
+QVariant QDeclarativeEnginePrivate::scriptValueToVariant(const QScriptValue &val, int hint)
+{
+QScriptDeclarativeClass *dc = QScriptDeclarativeClass::scriptClass(val);
+if (dc == objectClass)
+return QVariant::fromValue(objectClass->toQObject(val));
+else if (dc == valueTypeClass)
+return valueTypeClass->toVariant(val);
+else if (dc == contextClass)
+return QVariant();
+// Convert to a QList<QObject*> only if val is an array and we were explicitly hinted
+if (hint == qMetaTypeId<QList<QObject *> >() && val.isArray()) {
+QList<QObject *> list;
+int length = val.property(QLatin1String("length")).toInt32();
+for (int ii = 0; ii < length; ++ii) {
+QScriptValue arrayItem = val.property(ii);
+QObject *d = arrayItem.toQObject();
+list << d;
+}
+return QVariant::fromValue(list);
+}
+return val.toVariant();
+}
+/*!
+Adds \a path as a directory where the engine searches for
+installed modules in a URL-based directory structure.
+The newly added \a path will be first in the importPathList().
+\sa setImportPathList()
+*/
+void QDeclarativeEngine::addImportPath(const QString& path)
+{
+Q_D(QDeclarativeEngine);
+d->importDatabase.addImportPath(path);
+}
+/*!
+Returns the list of directories where the engine searches for
+installed modules in a URL-based directory structure.
+For example, if \c /opt/MyApp/lib/imports is in the path, then QML that
+imports \c com.mycompany.Feature will cause the QDeclarativeEngine to look
+in \c /opt/MyApp/lib/imports/com/mycompany/Feature/ for the components
+provided by that module. A \c qmldir file is required for defining the
+type version mapping and possibly declarative extensions plugins.
+By default, the list contains the directory of the application executable,
+paths specified in the \c QML_IMPORT_PATH environment variable,
+and the builtin \c ImportsPath from QLibraryInfo.
+\sa addImportPath() setImportPathList()
+*/
+QStringList QDeclarativeEngine::importPathList() const
+{
+Q_D(const QDeclarativeEngine);
+return d->importDatabase.importPathList();
+}
+/*!
+Sets \a paths as the list of directories where the engine searches for
+installed modules in a URL-based directory structure.
+By default, the list contains the directory of the application executable,
+paths specified in the \c QML_IMPORT_PATH environment variable,
+and the builtin \c ImportsPath from QLibraryInfo.
+\sa importPathList() addImportPath()
+*/
+void QDeclarativeEngine::setImportPathList(const QStringList &paths)
+{
+Q_D(QDeclarativeEngine);
+d->importDatabase.setImportPathList(paths);
+}
+/*!
+Adds \a path as a directory where the engine searches for
+native plugins for imported modules (referenced in the \c qmldir file).
+By default, the list contains only \c .,  i.e. the engine searches
+in the directory of the \c qmldir file itself.
+The newly added \a path will be first in the pluginPathList().
+\sa setPluginPathList()
+*/
+void QDeclarativeEngine::addPluginPath(const QString& path)
+{
+Q_D(QDeclarativeEngine);
+d->importDatabase.addPluginPath(path);
+}
+/*!
+Returns the list of directories where the engine searches for
+native plugins for imported modules (referenced in the \c qmldir file).
+By default, the list contains only \c .,  i.e. the engine searches
+in the directory of the \c qmldir file itself.
+\sa addPluginPath() setPluginPathList()
+*/
+QStringList QDeclarativeEngine::pluginPathList() const
+{
+Q_D(const QDeclarativeEngine);
+return d->importDatabase.pluginPathList();
+}
+/*!
+Sets the list of directories where the engine searches for
+native plugins for imported modules (referenced in the \c qmldir file)
+to \a paths.
+By default, the list contains only \c .,  i.e. the engine searches
+in the directory of the \c qmldir file itself.
+\sa pluginPathList() addPluginPath()
+*/
+void QDeclarativeEngine::setPluginPathList(const QStringList &paths)
+{
+Q_D(QDeclarativeEngine);
+d->importDatabase.setPluginPathList(paths);
+}
+/*!
+Imports the plugin named \a filePath with the \a uri provided.
+Returns true if the plugin was successfully imported; otherwise returns false.
+On failure and if non-null, *\a errorString will be set to a message describing the failure.
+The plugin has to be a Qt plugin which implements the QDeclarativeExtensionPlugin interface.
+*/
+bool QDeclarativeEngine::importPlugin(const QString &filePath, const QString &uri, QString *errorString)
+{
+Q_D(QDeclarativeEngine);
+return d->importDatabase.importPlugin(filePath, uri, errorString);
+}
+/*!
+\property QDeclarativeEngine::offlineStoragePath
+\brief the directory for storing offline user data
+Returns the directory where SQL and other offline
+storage is placed.
+QDeclarativeWebView and the SQL databases created with openDatabase()
+are stored here.
+The default is QML/OfflineStorage in the platform-standard
+user application data directory.
+Note that the path may not currently exist on the filesystem, so
+callers wanting to \e create new files at this location should create
+it first - see QDir::mkpath().
+*/
+void QDeclarativeEngine::setOfflineStoragePath(const QString& dir)
+{
+Q_D(QDeclarativeEngine);
+d->scriptEngine.offlineStoragePath = dir;
+}
+QString QDeclarativeEngine::offlineStoragePath() const
+{
+Q_D(const QDeclarativeEngine);
+return d->scriptEngine.offlineStoragePath;
+}
+static void voidptr_destructor(void *v)
+{
+void **ptr = (void **)v;
+delete ptr;
+}
+static void *voidptr_constructor(const void *v)
+{
+if (!v) {
+return new void*;
+} else {
+return new void*(*(void **)v);
+}
+}
+void QDeclarativeEnginePrivate::registerCompositeType(QDeclarativeCompiledData *data)
+{
+QByteArray name = data->root->className();
+QByteArray ptr = name + '*';
+QByteArray lst = "QDeclarativeListProperty<" + name + ">";
+int ptr_type = QMetaType::registerType(ptr.constData(), voidptr_destructor,
+voidptr_constructor);
+int lst_type = QMetaType::registerType(lst.constData(), voidptr_destructor,
+voidptr_constructor);
+m_qmlLists.insert(lst_type, ptr_type);
+m_compositeTypes.insert(ptr_type, data);
+data->addref();
+}
+bool QDeclarativeEnginePrivate::isList(int t) const
+{
+return m_qmlLists.contains(t) || QDeclarativeMetaType::isList(t);
+}
+int QDeclarativeEnginePrivate::listType(int t) const
+{
+QHash<int, int>::ConstIterator iter = m_qmlLists.find(t);
+if (iter != m_qmlLists.end())
+return *iter;
+else
+return QDeclarativeMetaType::listType(t);
+}
+bool QDeclarativeEnginePrivate::isQObject(int t)
+{
+return m_compositeTypes.contains(t) || QDeclarativeMetaType::isQObject(t);
+}
+QObject *QDeclarativeEnginePrivate::toQObject(const QVariant &v, bool *ok) const
+{
+int t = v.userType();
+if (m_compositeTypes.contains(t)) {
+if (ok) *ok = true;
+return *(QObject **)(v.constData());
+} else {
+return QDeclarativeMetaType::toQObject(v, ok);
+}
+}
+QDeclarativeMetaType::TypeCategory QDeclarativeEnginePrivate::typeCategory(int t) const
+{
+if (m_compositeTypes.contains(t))
+return QDeclarativeMetaType::Object;
+else if (m_qmlLists.contains(t))
+return QDeclarativeMetaType::List;
+else
+return QDeclarativeMetaType::typeCategory(t);
+}
+const QMetaObject *QDeclarativeEnginePrivate::rawMetaObjectForType(int t) const
+{
+QHash<int, QDeclarativeCompiledData*>::ConstIterator iter = m_compositeTypes.find(t);
+if (iter != m_compositeTypes.end()) {
+return (*iter)->root;
+} else {
+QDeclarativeType *type = QDeclarativeMetaType::qmlType(t);
+return type?type->baseMetaObject():0;
+}
+}
+const QMetaObject *QDeclarativeEnginePrivate::metaObjectForType(int t) const
+{
+QHash<int, QDeclarativeCompiledData*>::ConstIterator iter = m_compositeTypes.find(t);
+if (iter != m_compositeTypes.end()) {
+return (*iter)->root;
+} else {
+QDeclarativeType *type = QDeclarativeMetaType::qmlType(t);
+return type?type->metaObject():0;
+}
+}
+QT_END_NAMESPACE

changeset 30	5dc02b23752f
child 33	3e2da88830cd