QML Observer: Build together on runtime with debugging tools

Moved qmljsdebugger to a dir under qml/, made qmlobserver compile
without creator dependencies and made it compile with debugging
helpers.

Reviewed-by: hjk

share/qtcreator/qml/qmljsdebugger/editor/layeritem.cpp

@@ -0,0 +1,78 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** Commercial Usage
+**
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://qt.nokia.com/contact.
+**
+**************************************************************************/
+
+#include "layeritem.h"
+#include "qmlobserverconstants.h"
+
+#include <QGraphicsScene>
+
+namespace QmlJSDebugger {
+
+LayerItem::LayerItem(QGraphicsScene* scene)
+            : QGraphicsObject()
+{
+    scene->addItem(this);
+    setZValue(1);
+    setFlag(QGraphicsItem::ItemIsMovable, false);
+}
+
+LayerItem::~LayerItem()
+{
+}
+
+void LayerItem::paint(QPainter * /*painter*/, const QStyleOptionGraphicsItem * /*option*/, QWidget * /*widget*/)
+{
+}
+
+int LayerItem::type() const
+{
+    return Constants::EditorItemType;
+}
+
+QRectF LayerItem::boundingRect() const
+{
+    return childrenBoundingRect();
+}
+
+QList<QGraphicsItem*> LayerItem::findAllChildItems() const
+{
+    return findAllChildItems(this);
+}
+
+QList<QGraphicsItem*> LayerItem::findAllChildItems(const QGraphicsItem *item) const
+{
+    QList<QGraphicsItem*> itemList(item->childItems());
+
+    foreach (QGraphicsItem *childItem, item->childItems())
+        itemList += findAllChildItems(childItem);
+
+    return itemList;
+}
+
+} // namespace QmlJSDebugger