Revert "Add QDeclarativeGraphicsWidget, a QGraphicsWidget version of QmlView"

This reverts commit 327d212f5cff81f1c21b7be5c54b3e1eab4f0ac5.

4 files changed, 2 insertions, 584 deletions

diff --git a/doc/src/declarative/integrating.qdoc b/doc/src/declarative/integrating.qdoc
index 09ed178..c685d3d 100644
--- a/doc/src/declarative/integrating.qdoc
+++ b/doc/src/declarative/integrating.qdoc
@@ -86,9 +86,6 @@ QGraphicsObject *object =
 scene->addItem(object);
 \endcode
 
-There is a convenience QGraphicsWidget subclass, QDeclarativeGraphicsWidget, which takes care of the engine
-and component instantiation for you.
-
 The following QGraphicsView options are recommended for optimal performance
 of QML UIs:
 
@@ -98,13 +95,6 @@ of QML UIs:
 \o QGraphicsScene::setItemIndexMethod(QGraphicsScene::NoIndex);
 \endlist
 
-And the following QGraphicsView options are required for QML key handling to work:
-
-\list
-\o QGraphicsView::viewport()->setFocusPolicy(Qt::NoFocus);
-\o QGraphicsScene::setStickyFocus(true);
-\endlist
-
 \section1 Using existing QGraphicsWidgets in QML
 Another way of integrating with a QGraphicsView based UI is to expose your
 existing QGraphicsWidgets to QML, and constructing your scene in QML. Note that
diff --git a/src/declarative/util/qdeclarativegraphicswidget.cpp b/src/declarative/util/qdeclarativegraphicswidget.cpp
deleted file mode 100644
index 1d0d468..0000000
--- a/src/declarative/util/qdeclarativegraphicswidget.cpp
+++ /dev/null
@@ -1,457 +0,0 @@
-/****************************************************************************
-**
-** 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 "qdeclarativegraphicswidget.h"
-
-#include "qperformancelog_p_p.h"
-#include "qfxperf_p_p.h"
-
-#include <qdeclarative.h>
-#include <qdeclarativeitem.h>
-#include <qdeclarativeengine.h>
-#include <qdeclarativecontext.h>
-#include <qdeclarativedebug_p.h>
-#include <qdeclarativedebugservice_p.h>
-#include <qdeclarativeglobal_p.h>
-#include <qdeclarativeerror.h>
-
-#include <qscriptvalueiterator.h>
-#include <qdebug.h>
-#include <qtimer.h>
-#include <qevent.h>
-#include <qdir.h>
-#include <qcoreapplication.h>
-#include <qfontdatabase.h>
-#include <qicon.h>
-#include <qurl.h>
-#include <qboxlayout.h>
-#include <qbasictimer.h>
-#include <QtCore/qabstractanimation.h>
-#include <private/qguard_p.h>
-
-QT_BEGIN_NAMESPACE
-
-class QDeclarativeGraphicsWidgetSharedQDeclarativeEngine
-{
-public:
-    QDeclarativeGraphicsWidgetSharedQDeclarativeEngine(){}
-
-    static QDeclarativeEngine* sharedEngine(){
-        if(!references)
-            return 0;
-        return &QDeclarativeGraphicsWidgetSharedQDeclarativeEngine::m_instance->engine;
-    }
-    static void attach(){
-        if(!references++)
-            m_instance = new QDeclarativeGraphicsWidgetSharedQDeclarativeEngine();
-    }
-
-    static void detach(){
-        if(!--references)
-            delete m_instance;
-    }
-
-private:
-    static QDeclarativeGraphicsWidgetSharedQDeclarativeEngine* m_instance;
-    static int references;
-    QDeclarativeEngine engine;
-};
-
-int QDeclarativeGraphicsWidgetSharedQDeclarativeEngine::references = 0;
-QDeclarativeGraphicsWidgetSharedQDeclarativeEngine* QDeclarativeGraphicsWidgetSharedQDeclarativeEngine::m_instance = 0;
-
-class QDeclarativeGraphicsWidgetPrivate
-{
-public:
-    QDeclarativeGraphicsWidgetPrivate()
-        : root(0), component(0),
-          resizeMode(QDeclarativeGraphicsWidget::SizeViewToRootObject) 
-    {
-        QDeclarativeGraphicsWidgetSharedQDeclarativeEngine::attach();
-        engine = QDeclarativeGraphicsWidgetSharedQDeclarativeEngine::sharedEngine();
-    }
-
-    ~QDeclarativeGraphicsWidgetPrivate()
-    {
-        QDeclarativeGraphicsWidgetSharedQDeclarativeEngine::detach();
-    }
-
-    QGuard<QGraphicsObject> root;
-    QGuard<QDeclarativeItem> declarativeRoot;
-
-    QUrl source;
-
-    QDeclarativeEngine* engine;
-    QDeclarativeComponent *component;
-    QBasicTimer resizetimer;
-
-    mutable QSize initialSize;
-    QDeclarativeGraphicsWidget::ResizeMode resizeMode;
-
-    void init();
-
-};
-
-/*!
-    \class QDeclarativeGraphicsWidget
-    \brief The QDeclarativeGraphicsWidget class provides a QGraphicsWidget for displaying a Qt Declarative user interface.
-
-    Any QGraphicsObject or QDeclarativeGraphicsItem
-    created via Qt Declarative can be placed on a standard QGraphicsScene and viewed with a standard
-    QGraphicsView.
-
-    QDeclarativeGraphicsWidget is a convenience class which handles QDeclarativeComponent loading and object creation.
-    It shares the same QDeclarativeEngine between all QDeclarativeGraphicsWidgets in the application, to minimize overhead.
-
-    QDeclarativeGraphicsWidget is ideal for when you have many small components styled with Qt Declarative, and want to integrate
-    them into a larger QGraphicsItem based scene. If your interface is primarily Qt Declarative based, consider using QDeclarativeView
-    instead.
-
-    Note that the following settings on your QGraphicsScene/View are recommended for optimal performance with Qt Declarative:
-        \list
-        \o QGraphicsView::setOptimizationFlags(QGraphicsView::DontSavePainterState);
-        \o QGraphicsView::setViewportUpdateMode(QGraphicsView::BoundingRectViewportUpdate);
-        \o QGraphicsScene::setItemIndexMethod(QGraphicsScene::NoIndex);
-        \endlist
-    Also note that the following settings on your QGraphicsScene/View are required for key handling in Qt Declarative to work:
-        \list
-        \o QGraphicsView::viewport()->setFocusPolicy(Qt::NoFocus);
-        \o QGraphicsScene::setStickyFocus(true);
-        \endlist
-
-    To receive errors related to loading and executing declarative files with QDeclarativeGraphicsWidget,
-    you can connect to the statusChanged() signal and monitor for QDeclarativeGraphicsWidget::Error.
-    The errors are available via QDeclarativeGraphicsWidget::errors().
-*/
-
-
-/*! \fn void QDeclarativeGraphicsWidget::sceneResized(QSize size)
-  This signal is emitted when the view is resized to \a size.
-*/
-
-/*! \fn void QDeclarativeGraphicsWidget::statusChanged(QDeclarativeGraphicsWidget::Status status)
-    This signal is emitted when the component's current \l{QDeclarativeGraphicsWidget::Status} {status} changes.
-*/
-
-/*!
-  \fn QDeclarativeGraphicsWidget::QDeclarativeGraphicsWidget(QGraphicsItem *parent)
-
-  Constructs a QDeclarativeGraphicsWidget with the given \a parent.
-*/
-QDeclarativeGraphicsWidget::QDeclarativeGraphicsWidget(QGraphicsItem *parent)
-: QGraphicsWidget(parent), d(new QDeclarativeGraphicsWidgetPrivate)
-{
-    setSizePolicy(QSizePolicy::Preferred,QSizePolicy::Preferred);
-    d->init();
-}
-
-void QDeclarativeGraphicsWidgetPrivate::init()
-{
-}
-
-/*!
-  The destructor clears the view's \l {QGraphicsObject} {items} and
-  deletes the internal representation.
- */
-QDeclarativeGraphicsWidget::~QDeclarativeGraphicsWidget()
-{
-    delete d->root;
-    delete d;
-}
-
-/*!
-    Sets the source to the \a url.
-
-    Will also load the QML file and instantiate the component.
-
- */
-void QDeclarativeGraphicsWidget::setSource(const QUrl& url)
-{
-    d->source = url;
-
-    //Execute
-    if(d->root)
-        delete d->root;
-    if(d->component)
-        delete d->component;
-    d->component = new QDeclarativeComponent(d->engine, d->source, this);
-
-    if (!d->component->isLoading()) {
-        continueExecute();
-    } else {
-        connect(d->component, SIGNAL(statusChanged(QDeclarativeComponent::Status)), this, SLOT(continueExecute()));
-    }
-}
-
-/*!
-  Returns the source URL, if set.
-
-  \sa setSource()
- */
-QUrl QDeclarativeGraphicsWidget::source() const
-{
-    return d->source;
-}
-
-/*!
-  Returns a pointer to the QDeclarativeEngine used for instantiating
-  Qt Declarative Components.
- */
-QDeclarativeEngine* QDeclarativeGraphicsWidget::engine()
-{
-    return d->engine;
-}
-
-/*!
-  This function returns the root of the context hierarchy.  Each declarative
-  component is instantiated in a QDeclarativeContext.  QDeclarativeContext's are
-  essential for passing data to declarative components.  In Qt Declarative, contexts are
-  arranged hierarchically and this hierarchy is managed by the
-  QDeclarativeEngine.
- */
-QDeclarativeContext* QDeclarativeGraphicsWidget::rootContext()
-{
-    return d->engine->rootContext();
-}
-
-
-/*!
-  \enum QDeclarativeGraphicsWidget::Status
-
-    Specifies the loading status of the QDeclarativeGraphicsWidget.
-
-    \value Null This QDeclarativeGraphicsWidget has no source set.
-    \value Ready This QDeclarativeGraphicsWidget has loaded and created the declarative component.
-    \value Loading This QDeclarativeGraphicsWidget is loading network data.
-    \value Error An error has occured.  Calling errorDescription() to retrieve a description.
-*/
-
-/*!
-    \property QDeclarativeGraphicsWidget::status
-    The component's current \l{QDeclarativeGraphicsWidget::Status} {status}.
-*/
-
-QDeclarativeGraphicsWidget::Status QDeclarativeGraphicsWidget::status() const
-{
-    if (!d->component)
-        return QDeclarativeGraphicsWidget::Null;
-
-    return QDeclarativeGraphicsWidget::Status(d->component->status());
-}
-
-/*!
-    Return the list of errors that occured during the last compile or create
-    operation.  An empty list is returned if isError() is not set.
-*/
-QList<QDeclarativeError> QDeclarativeGraphicsWidget::errors() const
-{
-    if (d->component)
-        return d->component->errors();
-    return QList<QDeclarativeError>();
-}
-
-
-/*!
-    \property QDeclarativeGraphicsWidget::resizeMode
-    \brief whether the view should resize the canvas contents
-
-    If this property is set to SizeViewToRootObject (the default), the view
-    resizes with the root item in the declarative file.
-
-    If this property is set to SizeRootObjectToView, the view will
-    automatically resize the root item.
-
-    Regardless of this property, the sizeHint of the view
-    is the initial size of the root item. Note though that
-    since declarative files may load dynamically, that size may change.
-
-    \sa initialSize()
-*/
-
-void QDeclarativeGraphicsWidget::setResizeMode(ResizeMode mode)
-{
-    if (d->resizeMode == mode)
-        return;
-
-    d->resizeMode = mode;
-    if (d->declarativeRoot) {
-        if (d->resizeMode == SizeRootObjectToView) {
-            d->declarativeRoot->setWidth(size().width());
-            d->declarativeRoot->setHeight(size().height());
-        } else {
-            d->declarativeRoot->setWidth(d->initialSize.width());
-            d->declarativeRoot->setHeight(d->initialSize.height());
-        }
-    }
-}
-
-QDeclarativeGraphicsWidget::ResizeMode QDeclarativeGraphicsWidget::resizeMode() const
-{
-    return d->resizeMode;
-}
-
-/*!
-  \internal
- */
-void QDeclarativeGraphicsWidget::continueExecute()
-{
-
-    disconnect(d->component, SIGNAL(statusChanged(QDeclarativeComponent::Status)), this, SLOT(continueExecute()));
-
-    if (d->component->isError()) {
-        QList<QDeclarativeError> errorList = d->component->errors();
-        foreach (const QDeclarativeError &error, errorList) {
-            qWarning() << error;
-        }
-        emit statusChanged(status());
-        return;
-    }
-
-    QObject *obj = d->component->create();
-
-    if(d->component->isError()) {
-        QList<QDeclarativeError> errorList = d->component->errors();
-        foreach (const QDeclarativeError &error, errorList) {
-            qWarning() << error;
-        }
-        emit statusChanged(status());
-        return;
-    }
-
-    if (obj) {
-        if (QDeclarativeItem *item = qobject_cast<QDeclarativeItem *>(obj)) {
-
-            item->QGraphicsItem::setParentItem(this);
-            item->QObject::setParent(this);
-
-            d->root = item;
-            d->declarativeRoot = item;
-            connect(item, SIGNAL(widthChanged()), this, SLOT(sizeChanged()));
-            connect(item, SIGNAL(heightChanged()), this, SLOT(sizeChanged()));
-            if (d->initialSize.height() <= 0 && d->declarativeRoot->width() > 0)
-                d->initialSize.setWidth(d->declarativeRoot->width());
-            if (d->initialSize.height() <= 0 && d->declarativeRoot->height() > 0)
-                d->initialSize.setHeight(d->declarativeRoot->height());
-            resize(d->initialSize);
-
-            if (d->resizeMode == SizeRootObjectToView) {
-                d->declarativeRoot->setWidth(size().width());
-                d->declarativeRoot->setHeight(size().height());
-            } else {
-                QSizeF sz(d->declarativeRoot->width(),d->declarativeRoot->height());
-                emit sceneResized(sz);
-                resize(sz);
-            }
-            updateGeometry();
-        } else if (QGraphicsObject *item = qobject_cast<QGraphicsObject *>(obj)) {
-            item->setParent(this);
-            qWarning() << "QDeclarativeGraphicsWidget::resizeMode is not honored for components of type QGraphicsObject";
-        } else if (qobject_cast<QWidget *>(obj)) {
-            qWarning() << "QDeclarativeGraphicsWidget does not support loading QML files containing QWidgets";
-        }
-    }
-    emit statusChanged(status());
-}
-
-/*!
-  \internal
- */
-void QDeclarativeGraphicsWidget::sizeChanged()
-{
-    // delay, so we catch both width and height changing.
-    d->resizetimer.start(0,this);
-}
-
-/*!
-  \internal
-  If the \l {QTimerEvent} {timer event} \a e is this
-  view's resize timer, sceneResized() is emitted.
- */
-void QDeclarativeGraphicsWidget::timerEvent(QTimerEvent* e)
-{
-    if (!e || e->timerId() == d->resizetimer.timerId()) {
-        if (d->declarativeRoot) {
-            QSize sz(d->declarativeRoot->width(),d->declarativeRoot->height());
-            emit sceneResized(sz);
-        }
-        d->resizetimer.stop();
-        updateGeometry();
-    }
-}
-
-/*!
-    \internal
-    The size hint is the size of the root item.
-*/
-QSizeF QDeclarativeGraphicsWidget::sizeHint() const
-{
-    if (d->declarativeRoot) {
-        if (d->initialSize.width() <= 0)
-            d->initialSize.setWidth(d->declarativeRoot->width());
-        if (d->initialSize.height() <= 0)
-            d->initialSize.setHeight(d->declarativeRoot->height());
-    }
-    return d->initialSize;
-}
-
-/*!
-  Returns the view's root \l {QGraphicsObject} {item}.
- */
-QGraphicsObject *QDeclarativeGraphicsWidget::rootObject() const
-{
-    return d->root;
-}
-
-/*!
-  \internal
-  This function handles the \l {QGraphicsSceneResizeEvent} {resize event}
-  \a e.
- */
-void QDeclarativeGraphicsWidget::resizeEvent(QGraphicsSceneResizeEvent *e)
-{
-    if (d->resizeMode == SizeRootObjectToView && d->declarativeRoot) {
-        d->declarativeRoot->setWidth(size().width());
-        d->declarativeRoot->setHeight(size().height());
-    }
-    QGraphicsWidget::resizeEvent(e);
-}
-
-QT_END_NAMESPACE
diff --git a/src/declarative/util/qdeclarativegraphicswidget.h b/src/declarative/util/qdeclarativegraphicswidget.h
deleted file mode 100644
index 33ebc7b..0000000
--- a/src/declarative/util/qdeclarativegraphicswidget.h
+++ /dev/null
@@ -1,113 +0,0 @@
-/****************************************************************************
-**
-** 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.
-**
-**
-**
-**
-**
-**
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef QDECLARATIVEGRAPHICSWIDGET_H
-#define QDECLARATIVEGRAPHICSWIDGET_H
-
-#include <QtCore/qdatetime.h>
-#include <QtCore/qurl.h>
-#include <QtGui/qgraphicssceneevent.h>
-#include <QtGui/qgraphicswidget.h>
-#include <QtGui/qwidget.h>
-
-QT_BEGIN_HEADER
-
-QT_BEGIN_NAMESPACE
-
-QT_MODULE(Declarative)
-
-class QGraphicsObject;
-class QDeclarativeEngine;
-class QDeclarativeContext;
-class QDeclarativeError;
-
-class QDeclarativeGraphicsWidgetPrivate;
-
-class Q_DECLARATIVE_EXPORT QDeclarativeGraphicsWidget : public QGraphicsWidget
-{
-    Q_OBJECT
-    Q_PROPERTY(ResizeMode resizeMode READ resizeMode WRITE setResizeMode)
-    Q_PROPERTY(Status status READ status NOTIFY statusChanged)
-    Q_PROPERTY(QUrl source READ source WRITE setSource)
-
-public:
-    explicit QDeclarativeGraphicsWidget(QGraphicsItem *parent = 0);
-    virtual ~QDeclarativeGraphicsWidget();
-
-    QUrl source() const;
-    void setSource(const QUrl&);
-
-    QDeclarativeEngine* engine();
-    QDeclarativeContext* rootContext();
-
-    QGraphicsObject *rootObject() const;
-
-    enum ResizeMode { SizeViewToRootObject, SizeRootObjectToView };
-    ResizeMode resizeMode() const;
-    void setResizeMode(ResizeMode);
-    QSizeF sizeHint() const;
-
-    enum Status { Null, Ready, Loading, Error };
-    Status status() const;
-
-    QList<QDeclarativeError> errors() const;
-
-Q_SIGNALS:
-    void sceneResized(QSizeF size);
-    void statusChanged(QDeclarativeGraphicsWidget::Status);
-
-private Q_SLOTS:
-    void continueExecute();
-    void sizeChanged();
-
-protected:
-    virtual void resizeEvent(QGraphicsSceneResizeEvent *);
-    void timerEvent(QTimerEvent*);
-
-private:
-    QDeclarativeGraphicsWidgetPrivate* d;
-};
-
-QT_END_NAMESPACE
-
-QT_END_HEADER
-
-#endif // QDECLARATIVEGRAPHICSWIDGET_H
diff --git a/src/declarative/util/util.pri b/src/declarative/util/util.pri
index 46126e5..610eb3f 100644
--- a/src/declarative/util/util.pri
+++ b/src/declarative/util/util.pri
@@ -30,8 +30,7 @@ SOURCES += \
     $$PWD/qdeclarativedatetimeformatter.cpp \
     $$PWD/qdeclarativebehavior.cpp \
     $$PWD/qdeclarativefontloader.cpp \
-    $$PWD/qdeclarativestyledtext.cpp \
-    $$PWD/qdeclarativegraphicswidget.cpp
+    $$PWD/qdeclarativestyledtext.cpp
 
 HEADERS += \
     $$PWD/qdeclarativeutilmodule_p.h\
@@ -66,8 +65,7 @@ HEADERS += \
     $$PWD/qdeclarativedatetimeformatter_p.h \
     $$PWD/qdeclarativebehavior_p.h \
     $$PWD/qdeclarativefontloader_p.h \
-    $$PWD/qdeclarativestyledtext_p.h \
-    $$PWD/qdeclarativegraphicswidget.h
+    $$PWD/qdeclarativestyledtext_p.h
 
 contains(QT_CONFIG, xmlpatterns) {
     QT+=xmlpatterns