Restructure the examples. They are now organized into various

subdirectories to make it easier to locate examples for certain
features (e.g. animation) and to distinguish between different types
of examples (e.g. very basic examples vs complex demo-like examples).

11 files changed, 946 insertions, 0 deletions

diff --git a/examples/declarative/cppextensions/qgraphicslayouts/graphicsLayouts/graphicslayouts.cpp b/examples/declarative/cppextensions/qgraphicslayouts/graphicsLayouts/graphicslayouts.cpp
new file mode 100644
index 0000000..25cf994
--- /dev/null
+++ b/examples/declarative/cppextensions/qgraphicslayouts/graphicsLayouts/graphicslayouts.cpp
@@ -0,0 +1,366 @@
+/****************************************************************************
+**
+** 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 "graphicslayouts_p.h"
+
+#include <QtGui/qgraphicswidget.h>
+#include <QtCore/qdebug.h>
+
+QT_BEGIN_NAMESPACE
+
+LinearLayoutAttached::LinearLayoutAttached(QObject *parent)
+: QObject(parent), _stretch(1), _alignment(Qt::AlignCenter), _spacing(0)
+{
+}
+
+void LinearLayoutAttached::setStretchFactor(int f)
+{
+    if (_stretch == f)
+        return;
+
+    _stretch = f;
+    emit stretchChanged(reinterpret_cast<QGraphicsLayoutItem*>(parent()), _stretch);
+}
+
+void LinearLayoutAttached::setSpacing(int s)
+{
+    if (_spacing == s)
+        return;
+
+    _spacing = s;
+    emit spacingChanged(reinterpret_cast<QGraphicsLayoutItem*>(parent()), _spacing);
+}
+
+void LinearLayoutAttached::setAlignment(Qt::Alignment a)
+{
+    if (_alignment == a)
+        return;
+
+    _alignment = a;
+    emit alignmentChanged(reinterpret_cast<QGraphicsLayoutItem*>(parent()), _alignment);
+}
+
+QGraphicsLinearLayoutStretchItemObject::QGraphicsLinearLayoutStretchItemObject(QObject *parent)
+    : QObject(parent)
+{
+}
+
+QSizeF QGraphicsLinearLayoutStretchItemObject::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const
+{
+Q_UNUSED(which);
+Q_UNUSED(constraint);
+return QSizeF();
+}
+
+
+QGraphicsLinearLayoutObject::QGraphicsLinearLayoutObject(QObject *parent)
+: QObject(parent)
+{
+}
+
+QGraphicsLinearLayoutObject::~QGraphicsLinearLayoutObject()
+{
+}
+
+void QGraphicsLinearLayoutObject::insertLayoutItem(int index, QGraphicsLayoutItem *item)
+{
+insertItem(index, item);
+
+//connect attached properties
+if (LinearLayoutAttached *obj = attachedProperties.value(item)) {
+    setStretchFactor(item, obj->stretchFactor());
+    setAlignment(item, obj->alignment());
+    updateSpacing(item, obj->spacing());
+    QObject::connect(obj, SIGNAL(stretchChanged(QGraphicsLayoutItem*,int)),
+                     this, SLOT(updateStretch(QGraphicsLayoutItem*,int)));
+    QObject::connect(obj, SIGNAL(alignmentChanged(QGraphicsLayoutItem*,Qt::Alignment)),
+                     this, SLOT(updateAlignment(QGraphicsLayoutItem*,Qt::Alignment)));
+    QObject::connect(obj, SIGNAL(spacingChanged(QGraphicsLayoutItem*,int)),
+                     this, SLOT(updateSpacing(QGraphicsLayoutItem*,int)));
+    //### need to disconnect when widget is removed?
+}
+}
+
+//### is there a better way to do this?
+void QGraphicsLinearLayoutObject::clearChildren()
+{
+for (int i = 0; i < count(); ++i)
+    removeAt(i);
+}
+
+qreal QGraphicsLinearLayoutObject::contentsMargin() const
+{
+    qreal a,b,c,d;
+    getContentsMargins(&a, &b, &c, &d);
+    if(a==b && a==c && a==d)
+        return a;
+    return -1;
+}
+
+void QGraphicsLinearLayoutObject::setContentsMargin(qreal m)
+{
+    setContentsMargins(m,m,m,m);
+}
+
+void QGraphicsLinearLayoutObject::updateStretch(QGraphicsLayoutItem *item, int stretch)
+{
+QGraphicsLinearLayout::setStretchFactor(item, stretch);
+}
+
+void QGraphicsLinearLayoutObject::updateSpacing(QGraphicsLayoutItem* item, int spacing)
+{
+    for(int i=0; i < count(); i++){
+        if(itemAt(i) == item){ //I do not see the reverse function, which is why we must loop over all items
+            QGraphicsLinearLayout::setItemSpacing(i, spacing);
+            return;
+        }
+    }
+}
+
+void QGraphicsLinearLayoutObject::updateAlignment(QGraphicsLayoutItem *item, Qt::Alignment alignment)
+{
+QGraphicsLinearLayout::setAlignment(item, alignment);
+}
+
+QHash<QGraphicsLayoutItem*, LinearLayoutAttached*> QGraphicsLinearLayoutObject::attachedProperties;
+LinearLayoutAttached *QGraphicsLinearLayoutObject::qmlAttachedProperties(QObject *obj)
+{
+// ### This is not allowed - you must attach to any object
+if (!qobject_cast<QGraphicsLayoutItem*>(obj))
+    return 0;
+LinearLayoutAttached *rv = new LinearLayoutAttached(obj);
+attachedProperties.insert(qobject_cast<QGraphicsLayoutItem*>(obj), rv);
+return rv;
+}
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////
+// QGraphicsGridLayout-related classes
+//////////////////////////////////////////////////////////////////////////////////////////////////////
+GridLayoutAttached::GridLayoutAttached(QObject *parent)
+: QObject(parent), _row(-1), _column(-1), _rowspan(1), _colspan(1), _alignment(-1), _rowstretch(-1),
+    _colstretch(-1), _rowspacing(-1), _colspacing(-1), _rowprefheight(-1), _rowmaxheight(-1), _rowminheight(-1),
+    _rowfixheight(-1), _colprefwidth(-1), _colmaxwidth(-1), _colminwidth(-1), _colfixwidth(-1)
+{
+}
+
+void GridLayoutAttached::setRow(int r)
+{
+    if (_row == r)
+        return;
+
+    _row = r;
+    //emit rowChanged(reinterpret_cast<QGraphicsLayoutItem*>(parent()), _row);
+}
+
+void GridLayoutAttached::setColumn(int c)
+{
+    if (_column == c)
+        return;
+
+    _column = c;
+    //emit columnChanged(reinterpret_cast<QGraphicsLayoutItem*>(parent()), _column);
+}
+
+void GridLayoutAttached::setRowSpan(int rs)
+{
+    if (_rowspan == rs)
+        return;
+
+    _rowspan = rs;
+    //emit rowSpanChanged(reinterpret_cast<QGraphicsLayoutItem*>(parent()), _rowSpan);
+}
+
+void GridLayoutAttached::setColumnSpan(int cs)
+{
+    if (_colspan == cs)
+        return;
+
+    _colspan = cs;
+    //emit columnSpanChanged(reinterpret_cast<QGraphicsLayoutItem*>(parent()), _columnSpan);
+}
+
+void GridLayoutAttached::setAlignment(Qt::Alignment a)
+{
+    if (_alignment == a)
+        return;
+
+    _alignment = a;
+    emit alignmentChanged(reinterpret_cast<QGraphicsLayoutItem*>(parent()), _alignment);
+}
+
+void GridLayoutAttached::setRowStretchFactor(int f)
+{
+    _rowstretch = f;
+}
+
+void GridLayoutAttached::setColumnStretchFactor(int f)
+{
+    _colstretch = f;
+}
+
+void GridLayoutAttached::setRowSpacing(int s)
+{
+    _rowspacing = s;
+}
+
+void GridLayoutAttached::setColumnSpacing(int s)
+{
+    _colspacing = s;
+}
+
+
+QGraphicsGridLayoutObject::QGraphicsGridLayoutObject(QObject *parent)
+: QObject(parent)
+{
+}
+
+QGraphicsGridLayoutObject::~QGraphicsGridLayoutObject()
+{
+}
+
+void QGraphicsGridLayoutObject::addWidget(QGraphicsWidget *wid)
+{
+//use attached properties
+if (QObject *obj = attachedProperties.value(qobject_cast<QGraphicsLayoutItem*>(wid))) {
+    int row = static_cast<GridLayoutAttached *>(obj)->row();
+    int column = static_cast<GridLayoutAttached *>(obj)->column();
+    int rowSpan = static_cast<GridLayoutAttached *>(obj)->rowSpan();
+    int columnSpan = static_cast<GridLayoutAttached *>(obj)->columnSpan();
+    if (row == -1 || column == -1) {
+        qWarning() << "Must set row and column for an item in a grid layout";
+        return;
+    }
+    addItem(wid, row, column, rowSpan, columnSpan);
+}
+}
+
+void QGraphicsGridLayoutObject::addLayoutItem(QGraphicsLayoutItem *item)
+{
+//use attached properties
+if (GridLayoutAttached *obj = attachedProperties.value(item)) {
+    int row = obj->row();
+    int column = obj->column();
+    int rowSpan = obj->rowSpan();
+    int columnSpan = obj->columnSpan();
+    Qt::Alignment alignment = obj->alignment();
+    if (row == -1 || column == -1) {
+        qWarning() << "Must set row and column for an item in a grid layout";
+        return;
+    }
+    if(obj->rowSpacing() != -1)
+        setRowSpacing(row, obj->rowSpacing());
+    if(obj->columnSpacing() != -1)
+        setColumnSpacing(column, obj->columnSpacing());
+    if(obj->rowStretchFactor() != -1)
+        setRowStretchFactor(row, obj->rowStretchFactor());
+    if(obj->columnStretchFactor() != -1)
+        setColumnStretchFactor(column, obj->columnStretchFactor());
+    if(obj->rowPreferredHeight() != -1)
+        setRowPreferredHeight(row, obj->rowPreferredHeight());
+    if(obj->rowMaximumHeight() != -1)
+        setRowMaximumHeight(row, obj->rowMaximumHeight());
+    if(obj->rowMinimumHeight() != -1)
+        setRowMinimumHeight(row, obj->rowMinimumHeight());
+    if(obj->rowFixedHeight() != -1)
+        setRowFixedHeight(row, obj->rowFixedHeight());
+    if(obj->columnPreferredWidth() != -1)
+        setColumnPreferredWidth(row, obj->columnPreferredWidth());
+    if(obj->columnMaximumWidth() != -1)
+        setColumnMaximumWidth(row, obj->columnMaximumWidth());
+    if(obj->columnMinimumWidth() != -1)
+        setColumnMinimumWidth(row, obj->columnMinimumWidth());
+    if(obj->columnFixedWidth() != -1)
+        setColumnFixedWidth(row, obj->columnFixedWidth());
+    addItem(item, row, column, rowSpan, columnSpan);
+    if (alignment != -1)
+        setAlignment(item,alignment);
+    QObject::connect(obj, SIGNAL(alignmentChanged(QGraphicsLayoutItem*,Qt::Alignment)),
+                     this, SLOT(updateAlignment(QGraphicsLayoutItem*,Qt::Alignment)));
+    //### need to disconnect when widget is removed?
+}
+}
+
+//### is there a better way to do this?
+void QGraphicsGridLayoutObject::clearChildren()
+{
+for (int i = 0; i < count(); ++i)
+    removeAt(i);
+}
+
+qreal QGraphicsGridLayoutObject::spacing() const
+{
+if (verticalSpacing() == horizontalSpacing())
+    return verticalSpacing();
+return -1;  //###
+}
+
+qreal QGraphicsGridLayoutObject::contentsMargin() const
+{
+    qreal a,b,c,d;
+    getContentsMargins(&a, &b, &c, &d);
+    if(a==b && a==c && a==d)
+        return a;
+    return -1;
+}
+
+void QGraphicsGridLayoutObject::setContentsMargin(qreal m)
+{
+    setContentsMargins(m,m,m,m);
+}
+
+
+void QGraphicsGridLayoutObject::updateAlignment(QGraphicsLayoutItem *item, Qt::Alignment alignment)
+{
+QGraphicsGridLayout::setAlignment(item, alignment);
+}
+
+QHash<QGraphicsLayoutItem*, GridLayoutAttached*> QGraphicsGridLayoutObject::attachedProperties;
+GridLayoutAttached *QGraphicsGridLayoutObject::qmlAttachedProperties(QObject *obj)
+{
+// ### This is not allowed - you must attach to any object
+if (!qobject_cast<QGraphicsLayoutItem*>(obj))
+    return 0;
+GridLayoutAttached *rv = new GridLayoutAttached(obj);
+attachedProperties.insert(qobject_cast<QGraphicsLayoutItem*>(obj), rv);
+return rv;
+}
+
+QT_END_NAMESPACE
diff --git a/examples/declarative/cppextensions/qgraphicslayouts/graphicsLayouts/graphicslayouts.pro b/examples/declarative/cppextensions/qgraphicslayouts/graphicsLayouts/graphicslayouts.pro
new file mode 100644
index 0000000..e5d91b2
--- /dev/null
+++ b/examples/declarative/cppextensions/qgraphicslayouts/graphicsLayouts/graphicslayouts.pro
@@ -0,0 +1,13 @@
+TEMPLATE = app
+TARGET  = graphicslayouts
+QT += declarative
+
+SOURCES += \
+    graphicslayouts.cpp \
+    main.cpp
+
+HEADERS += \
+    graphicslayouts_p.h
+
+RESOURCES += \
+    graphicslayouts.qrc
diff --git a/examples/declarative/cppextensions/qgraphicslayouts/graphicsLayouts/graphicslayouts.qml b/examples/declarative/cppextensions/qgraphicslayouts/graphicsLayouts/graphicslayouts.qml
new file mode 100644
index 0000000..fcd78d5
--- /dev/null
+++ b/examples/declarative/cppextensions/qgraphicslayouts/graphicsLayouts/graphicslayouts.qml
@@ -0,0 +1,77 @@
+import Qt 4.7
+import GraphicsLayouts 4.7
+
+Item {
+    id: resizable
+
+    width: 800
+    height: 400
+
+    QGraphicsWidget {
+        size.width: parent.width/2
+        size.height: parent.height
+
+        layout: QGraphicsLinearLayout {
+            LayoutItem {
+                minimumSize: "100x100"
+                maximumSize: "300x300"
+                preferredSize: "100x100"
+                Rectangle { color: "yellow"; anchors.fill: parent }
+            }
+            LayoutItem {
+                minimumSize: "100x100"
+                maximumSize: "400x400"
+                preferredSize: "200x200"
+                Rectangle { color: "green"; anchors.fill: parent }
+            }
+        }
+    }
+    QGraphicsWidget {
+        x: parent.width/2
+        size.width: parent.width/2
+        size.height: parent.height
+
+        layout: QGraphicsGridLayout {
+            LayoutItem {
+                QGraphicsGridLayout.row: 0
+                QGraphicsGridLayout.column: 0
+                minimumSize: "100x100"
+                maximumSize: "300x300"
+                preferredSize: "100x100"
+                Rectangle { color: "red"; anchors.fill: parent }
+            }
+            LayoutItem {
+                QGraphicsGridLayout.row: 1
+                QGraphicsGridLayout.column: 0
+                minimumSize: "100x100"
+                maximumSize: "200x200"
+                preferredSize: "100x100"
+                Rectangle { color: "orange"; anchors.fill: parent }
+            }
+            LayoutItem {
+                QGraphicsGridLayout.row: 2
+                QGraphicsGridLayout.column: 0
+                minimumSize: "100x100"
+                maximumSize: "300x300"
+                preferredSize: "200x200"
+                Rectangle { color: "yellow"; anchors.fill: parent }
+            }
+            LayoutItem {
+                QGraphicsGridLayout.row: 0
+                QGraphicsGridLayout.column: 1
+                minimumSize: "100x100"
+                maximumSize: "200x200"
+                preferredSize: "200x200"
+                Rectangle { color: "green"; anchors.fill: parent }
+            }
+            LayoutItem {
+                QGraphicsGridLayout.row: 1
+                QGraphicsGridLayout.column: 1
+                minimumSize: "100x100"
+                maximumSize: "400x400"
+                preferredSize: "200x200"
+                Rectangle { color: "blue"; anchors.fill: parent }
+            }
+        }
+    }
+}
diff --git a/examples/declarative/cppextensions/qgraphicslayouts/graphicsLayouts/graphicslayouts.qrc b/examples/declarative/cppextensions/qgraphicslayouts/graphicsLayouts/graphicslayouts.qrc
new file mode 100644
index 0000000..a199f8d
--- /dev/null
+++ b/examples/declarative/cppextensions/qgraphicslayouts/graphicsLayouts/graphicslayouts.qrc
@@ -0,0 +1,5 @@
+<!DOCTYPE RCC><RCC version="1.0">
+<qresource>
+    <file>graphicslayouts.qml</file>
+</qresource>
+</RCC>
diff --git a/examples/declarative/cppextensions/qgraphicslayouts/graphicsLayouts/graphicslayouts_p.h b/examples/declarative/cppextensions/qgraphicslayouts/graphicsLayouts/graphicslayouts_p.h
new file mode 100644
index 0000000..ea9c614
--- /dev/null
+++ b/examples/declarative/cppextensions/qgraphicslayouts/graphicsLayouts/graphicslayouts_p.h
@@ -0,0 +1,303 @@
+/****************************************************************************
+**
+** 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 GRAPHICSLAYOUTS_H
+#define GRAPHICSLAYOUTS_H
+
+#include <QtGui/QGraphicsLinearLayout>
+#include <QtGui/QGraphicsGridLayout>
+#include <qdeclarative.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Declarative)
+
+class QGraphicsLinearLayoutStretchItemObject : public QObject, public QGraphicsLayoutItem
+{
+    Q_OBJECT
+    Q_INTERFACES(QGraphicsLayoutItem)
+public:
+    QGraphicsLinearLayoutStretchItemObject(QObject *parent = 0);
+
+    virtual QSizeF sizeHint(Qt::SizeHint, const QSizeF &) const;
+};
+
+class LinearLayoutAttached;
+class QGraphicsLinearLayoutObject : public QObject, public QGraphicsLinearLayout
+{
+    Q_OBJECT
+    Q_INTERFACES(QGraphicsLayout QGraphicsLayoutItem)
+
+    Q_PROPERTY(QDeclarativeListProperty<QGraphicsLayoutItem> children READ children)
+    Q_PROPERTY(Qt::Orientation orientation READ orientation WRITE setOrientation)
+    Q_PROPERTY(qreal spacing READ spacing WRITE setSpacing)
+    Q_PROPERTY(qreal contentsMargin READ contentsMargin WRITE setContentsMargin)
+    Q_CLASSINFO("DefaultProperty", "children")
+public:
+    QGraphicsLinearLayoutObject(QObject * = 0);
+    ~QGraphicsLinearLayoutObject();
+
+    QDeclarativeListProperty<QGraphicsLayoutItem> children() { return QDeclarativeListProperty<QGraphicsLayoutItem>(this, 0, children_append, children_count, children_at, children_clear); }
+
+    static LinearLayoutAttached *qmlAttachedProperties(QObject *);
+
+    qreal contentsMargin() const;
+    void setContentsMargin(qreal);
+
+private Q_SLOTS:
+    void updateStretch(QGraphicsLayoutItem*,int);
+    void updateSpacing(QGraphicsLayoutItem*,int);
+    void updateAlignment(QGraphicsLayoutItem*,Qt::Alignment);
+
+private:
+    friend class LinearLayoutAttached;
+    void clearChildren();
+    void insertLayoutItem(int, QGraphicsLayoutItem *);
+    static QHash<QGraphicsLayoutItem*, LinearLayoutAttached*> attachedProperties;
+
+    static void children_append(QDeclarativeListProperty<QGraphicsLayoutItem> *prop, QGraphicsLayoutItem *item) {
+        static_cast<QGraphicsLinearLayoutObject*>(prop->object)->insertLayoutItem(-1, item);
+    }
+
+    static void children_clear(QDeclarativeListProperty<QGraphicsLayoutItem> *prop) {
+        static_cast<QGraphicsLinearLayoutObject*>(prop->object)->clearChildren();
+    }
+
+    static int children_count(QDeclarativeListProperty<QGraphicsLayoutItem> *prop) {
+        return static_cast<QGraphicsLinearLayoutObject*>(prop->object)->count();
+    }
+
+    static QGraphicsLayoutItem *children_at(QDeclarativeListProperty<QGraphicsLayoutItem> *prop, int index) {
+        return static_cast<QGraphicsLinearLayoutObject*>(prop->object)->itemAt(index);
+    }
+};
+
+class GridLayoutAttached;
+class QGraphicsGridLayoutObject : public QObject, public QGraphicsGridLayout
+{
+    Q_OBJECT
+    Q_INTERFACES(QGraphicsLayout QGraphicsLayoutItem)
+
+    Q_PROPERTY(QDeclarativeListProperty<QGraphicsLayoutItem> children READ children)
+    Q_PROPERTY(qreal spacing READ spacing WRITE setSpacing)
+    Q_PROPERTY(qreal contentsMargin READ contentsMargin WRITE setContentsMargin)
+    Q_PROPERTY(qreal verticalSpacing READ verticalSpacing WRITE setVerticalSpacing)
+    Q_PROPERTY(qreal horizontalSpacing READ horizontalSpacing WRITE setHorizontalSpacing)
+    Q_CLASSINFO("DefaultProperty", "children")
+public:
+    QGraphicsGridLayoutObject(QObject * = 0);
+    ~QGraphicsGridLayoutObject();
+
+    QDeclarativeListProperty<QGraphicsLayoutItem> children() { return QDeclarativeListProperty<QGraphicsLayoutItem>(this, 0, children_append, children_count, children_at, children_clear); }
+
+    qreal spacing() const;
+    qreal contentsMargin() const;
+    void setContentsMargin(qreal);
+
+    static GridLayoutAttached *qmlAttachedProperties(QObject *);
+
+private Q_SLOTS:
+    void updateAlignment(QGraphicsLayoutItem*,Qt::Alignment);
+
+private:
+    friend class GraphicsLayoutAttached;
+    void addWidget(QGraphicsWidget *);
+    void clearChildren();
+    void addLayoutItem(QGraphicsLayoutItem *);
+    static QHash<QGraphicsLayoutItem*, GridLayoutAttached*> attachedProperties;
+
+    static void children_append(QDeclarativeListProperty<QGraphicsLayoutItem> *prop, QGraphicsLayoutItem *item) {
+        static_cast<QGraphicsGridLayoutObject*>(prop->object)->addLayoutItem(item);
+    }
+
+    static void children_clear(QDeclarativeListProperty<QGraphicsLayoutItem> *prop) {
+        static_cast<QGraphicsGridLayoutObject*>(prop->object)->clearChildren();
+    }
+
+    static int children_count(QDeclarativeListProperty<QGraphicsLayoutItem> *prop) {
+        return static_cast<QGraphicsGridLayoutObject*>(prop->object)->count();
+    }
+
+    static QGraphicsLayoutItem *children_at(QDeclarativeListProperty<QGraphicsLayoutItem> *prop, int index) {
+        return static_cast<QGraphicsGridLayoutObject*>(prop->object)->itemAt(index);
+    }
+};
+
+class LinearLayoutAttached : public QObject
+{
+    Q_OBJECT
+
+    Q_PROPERTY(int stretchFactor READ stretchFactor WRITE setStretchFactor NOTIFY stretchChanged)
+    Q_PROPERTY(Qt::Alignment alignment READ alignment WRITE setAlignment NOTIFY alignmentChanged)
+    Q_PROPERTY(int spacing READ spacing WRITE setSpacing NOTIFY spacingChanged)
+public:
+    LinearLayoutAttached(QObject *parent);
+
+    int stretchFactor() const { return _stretch; }
+    void setStretchFactor(int f);
+    Qt::Alignment alignment() const { return _alignment; }
+    void setAlignment(Qt::Alignment a);
+    int spacing() const { return _spacing; }
+    void setSpacing(int s);
+
+Q_SIGNALS:
+    void stretchChanged(QGraphicsLayoutItem*,int);
+    void alignmentChanged(QGraphicsLayoutItem*,Qt::Alignment);
+    void spacingChanged(QGraphicsLayoutItem*,int);
+
+private:
+    int _stretch;
+    Qt::Alignment _alignment;
+    int _spacing;
+};
+
+class GridLayoutAttached : public QObject
+{
+    Q_OBJECT
+
+    Q_PROPERTY(int row READ row WRITE setRow)
+    Q_PROPERTY(int column READ column WRITE setColumn)
+    Q_PROPERTY(int rowSpan READ rowSpan WRITE setRowSpan)
+    Q_PROPERTY(int columnSpan READ columnSpan WRITE setColumnSpan)
+    Q_PROPERTY(Qt::Alignment alignment READ alignment WRITE setAlignment)
+    Q_PROPERTY(int rowStretchFactor READ rowStretchFactor WRITE setRowStretchFactor)
+    Q_PROPERTY(int columnStretchFactor READ columnStretchFactor WRITE setColumnStretchFactor)
+    Q_PROPERTY(int rowSpacing READ rowSpacing WRITE setRowSpacing)
+    Q_PROPERTY(int columnSpacing READ columnSpacing WRITE setColumnSpacing)
+    Q_PROPERTY(int rowPreferredHeight READ rowPreferredHeight WRITE setRowPreferredHeight)
+    Q_PROPERTY(int rowMinimumHeight READ rowMinimumHeight WRITE setRowMinimumHeight)
+    Q_PROPERTY(int rowMaximumHeight READ rowMaximumHeight WRITE setRowMaximumHeight)
+    Q_PROPERTY(int rowFixedHeight READ rowFixedHeight WRITE setRowFixedHeight)
+    Q_PROPERTY(int columnPreferredWidth READ columnPreferredWidth WRITE setColumnPreferredWidth)
+    Q_PROPERTY(int columnMaximumWidth READ columnMaximumWidth WRITE setColumnMaximumWidth)
+    Q_PROPERTY(int columnMinimumWidth READ columnMinimumWidth WRITE setColumnMinimumWidth)
+    Q_PROPERTY(int columnFixedWidth READ columnFixedWidth WRITE setColumnFixedWidth)
+
+public:
+    GridLayoutAttached(QObject *parent);
+
+    int row() const { return _row; }
+    void setRow(int r);
+
+    int column() const { return _column; }
+    void setColumn(int c);
+
+    int rowSpan() const { return _rowspan; }
+    void setRowSpan(int rs);
+
+    int columnSpan() const { return _colspan; }
+    void setColumnSpan(int cs);
+
+    Qt::Alignment alignment() const { return _alignment; }
+    void setAlignment(Qt::Alignment a);
+
+    int rowStretchFactor() const { return _rowstretch; }
+    void setRowStretchFactor(int f);
+    int columnStretchFactor() const { return _colstretch; }
+    void setColumnStretchFactor(int f);
+
+    int rowSpacing() const { return _rowspacing; }
+    void setRowSpacing(int s);
+    int columnSpacing() const { return _colspacing; }
+    void setColumnSpacing(int s);
+
+    int rowPreferredHeight() const { return _rowprefheight; }
+    void setRowPreferredHeight(int s) { _rowprefheight = s; }
+
+    int rowMaximumHeight() const { return _rowmaxheight; }
+    void setRowMaximumHeight(int s) { _rowmaxheight = s; }
+
+    int rowMinimumHeight() const { return _rowminheight; }
+    void setRowMinimumHeight(int s) { _rowminheight = s; }
+
+    int rowFixedHeight() const { return _rowfixheight; }
+    void setRowFixedHeight(int s) { _rowfixheight = s; }
+
+    int columnPreferredWidth() const { return _colprefwidth; }
+    void setColumnPreferredWidth(int s) { _colprefwidth = s; }
+
+    int columnMaximumWidth() const { return _colmaxwidth; }
+    void setColumnMaximumWidth(int s) { _colmaxwidth = s; }
+
+    int columnMinimumWidth() const { return _colminwidth; }
+    void setColumnMinimumWidth(int s) { _colminwidth = s; }
+
+    int columnFixedWidth() const { return _colfixwidth; }
+    void setColumnFixedWidth(int s) { _colfixwidth = s; }
+
+Q_SIGNALS:
+    void alignmentChanged(QGraphicsLayoutItem*,Qt::Alignment);
+
+private:
+    int _row;
+    int _column;
+    int _rowspan;
+    int _colspan;
+    Qt::Alignment _alignment;
+    int _rowstretch;
+    int _colstretch;
+    int _rowspacing;
+    int _colspacing;
+    int _rowprefheight;
+    int _rowmaxheight;
+    int _rowminheight;
+    int _rowfixheight;
+    int _colprefwidth;
+    int _colmaxwidth;
+    int _colminwidth;
+    int _colfixwidth;
+};
+
+QT_END_NAMESPACE
+
+QML_DECLARE_INTERFACE(QGraphicsLayoutItem)
+QML_DECLARE_INTERFACE(QGraphicsLayout)
+QML_DECLARE_TYPE(QGraphicsLinearLayoutStretchItemObject)
+QML_DECLARE_TYPE(QGraphicsLinearLayoutObject)
+QML_DECLARE_TYPEINFO(QGraphicsLinearLayoutObject, QML_HAS_ATTACHED_PROPERTIES)
+QML_DECLARE_TYPE(QGraphicsGridLayoutObject)
+QML_DECLARE_TYPEINFO(QGraphicsGridLayoutObject, QML_HAS_ATTACHED_PROPERTIES)
+
+QT_END_HEADER
+
+#endif // GRAPHICSLAYOUTS_H
diff --git a/examples/declarative/cppextensions/qgraphicslayouts/graphicsLayouts/main.cpp b/examples/declarative/cppextensions/qgraphicslayouts/graphicsLayouts/main.cpp
new file mode 100644
index 0000000..89b69bf
--- /dev/null
+++ b/examples/declarative/cppextensions/qgraphicslayouts/graphicsLayouts/main.cpp
@@ -0,0 +1,60 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the plugins 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 <QApplication>
+#include <QtDeclarative/qdeclarative.h>
+#include "graphicslayouts_p.h"
+#include <QtDeclarative/QDeclarativeView>
+
+int main(int argc, char* argv[])
+{
+    QApplication app(argc, argv);
+    QDeclarativeView view;
+    qmlRegisterInterface<QGraphicsLayoutItem>("QGraphicsLayoutItem");
+    qmlRegisterInterface<QGraphicsLayout>("QGraphicsLayout");
+    qmlRegisterType<QGraphicsLinearLayoutStretchItemObject>("GraphicsLayouts",4,7,"QGraphicsLinearLayoutStretchItem");
+    qmlRegisterType<QGraphicsLinearLayoutObject>("GraphicsLayouts",4,7,"QGraphicsLinearLayout");
+    qmlRegisterType<QGraphicsGridLayoutObject>("GraphicsLayouts",4,7,"QGraphicsGridLayout");
+    view.setSource(QUrl(":graphicslayouts.qml"));
+    view.show();
+    return app.exec();
+};
+
diff --git a/examples/declarative/cppextensions/qgraphicslayouts/layoutItem/layoutItem.pro b/examples/declarative/cppextensions/qgraphicslayouts/layoutItem/layoutItem.pro
new file mode 100644
index 0000000..4a3fc73
--- /dev/null
+++ b/examples/declarative/cppextensions/qgraphicslayouts/layoutItem/layoutItem.pro
@@ -0,0 +1,13 @@
+######################################################################
+# Automatically generated by qmake (2.01a) Tue May 4 13:36:26 2010
+######################################################################
+
+TEMPLATE = app
+TARGET = 
+DEPENDPATH += .
+INCLUDEPATH += .
+QT += declarative
+
+# Input
+SOURCES += main.cpp
+RESOURCES += layoutItem.qrc
diff --git a/examples/declarative/cppextensions/qgraphicslayouts/layoutItem/layoutItem.qml b/examples/declarative/cppextensions/qgraphicslayouts/layoutItem/layoutItem.qml
new file mode 100644
index 0000000..460c564
--- /dev/null
+++ b/examples/declarative/cppextensions/qgraphicslayouts/layoutItem/layoutItem.qml
@@ -0,0 +1,15 @@
+import Qt 4.7
+
+LayoutItem {//Sized by the layout
+    id: resizable
+    minimumSize: "100x100"
+    maximumSize: "300x300"
+    preferredSize: "100x100"
+    Rectangle { color: "yellow"; anchors.fill: parent }
+    Rectangle { 
+        width: 100; height: 100; 
+        anchors.top: parent.top; 
+        anchors.right: parent.right;
+        color: "green"; 
+    }
+}
diff --git a/examples/declarative/cppextensions/qgraphicslayouts/layoutItem/layoutItem.qrc b/examples/declarative/cppextensions/qgraphicslayouts/layoutItem/layoutItem.qrc
new file mode 100644
index 0000000..deb0fba
--- /dev/null
+++ b/examples/declarative/cppextensions/qgraphicslayouts/layoutItem/layoutItem.qrc
@@ -0,0 +1,5 @@
+<!DOCTYPE RCC><RCC version="1.0">
+<qresource>
+    <file>layoutItem.qml</file>
+</qresource>
+</RCC>
diff --git a/examples/declarative/cppextensions/qgraphicslayouts/layoutItem/main.cpp b/examples/declarative/cppextensions/qgraphicslayouts/layoutItem/main.cpp
new file mode 100644
index 0000000..a104251
--- /dev/null
+++ b/examples/declarative/cppextensions/qgraphicslayouts/layoutItem/main.cpp
@@ -0,0 +1,73 @@
+/****************************************************************************
+**
+** 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 examples 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 <QApplication>
+#include <QGraphicsView>
+#include <QGraphicsScene>
+#include <QGraphicsWidget>
+#include <QGraphicsLinearLayout>
+#include <QDeclarativeComponent>
+#include <QDeclarativeEngine>
+
+/* This example demonstrates using a LayoutItem to let QML snippets integrate
+   nicely with existing QGraphicsView applications designed with GraphicsLayouts
+*/
+int main(int argc, char* argv[])
+{
+    QApplication app(argc, argv);
+    //Set up a graphics scene with a QGraphicsWidget and Layout
+    QGraphicsView view;
+    QGraphicsScene scene;
+    QGraphicsWidget *widget = new QGraphicsWidget();
+    QGraphicsLinearLayout *layout = new QGraphicsLinearLayout();
+    widget->setLayout(layout);
+    scene.addItem(widget);
+    view.setScene(&scene);
+    //Add the QML snippet into the layout
+    QDeclarativeEngine engine;
+    QDeclarativeComponent c(&engine, QUrl(":layoutItem.qml"));
+    QGraphicsLayoutItem* obj = qobject_cast<QGraphicsLayoutItem*>(c.create());
+    layout->addItem(obj);
+
+    widget->setGeometry(QRectF(0,0, 400,400));
+    view.show();
+    return app.exec();
+}
diff --git a/examples/declarative/cppextensions/qgraphicslayouts/qgraphicslayouts.qmlproject b/examples/declarative/cppextensions/qgraphicslayouts/qgraphicslayouts.qmlproject
new file mode 100644
index 0000000..d4909f8
--- /dev/null
+++ b/examples/declarative/cppextensions/qgraphicslayouts/qgraphicslayouts.qmlproject
@@ -0,0 +1,16 @@
+import QmlProject 1.0
+
+Project {
+    /* Include .qml, .js, and image files from current directory and subdirectories */
+    QmlFiles {
+        directory: "."
+    }
+    JavaScriptFiles {
+        directory: "."
+    }
+    ImageFiles {
+        directory: "."
+    }
+    /* List of plugin directories passed to QML runtime */
+    // importPaths: [ " ../exampleplugin " ]
+}