--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ginebra/old/graphicsitemrotater.cpp	Tue May 04 12:39:35 2010 +0300
@@ -0,0 +1,108 @@
+/*
+* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: 
+*
+*/
+
+
+#include "graphicsitemrotater.h"
+#include <QtGui>
+#include <QPainter>
+#include <QStyleOptionGraphicsItem>
+#include "utilities.h"
+#include <assert.h>
+
+
+GraphicsItemRotater::GraphicsItemRotater()
+  : m_lastRotationValue(0)
+{
+    m_timeLine.setFrameRange(0, 50);
+    safe_connect(&m_timeLine, SIGNAL(valueChanged(qreal)), this, SLOT(updateRotationStep(qreal)));
+    safe_connect(&m_timeLine, SIGNAL(finished()), this, SIGNAL(finished()));
+}
+
+GraphicsItemRotater::~GraphicsItemRotater() {
+    if(m_pixmapItem) delete m_pixmapItem;
+}
+
+void GraphicsItemRotater::start(QGraphicsItem *item, int angle, int duration, QTimeLine::CurveShape shape) {
+    m_timeLine.setDuration(duration);
+    m_timeLine.setCurveShape(shape);
+
+    // Grab a pixmap of the item.
+    QRectF rect = item->boundingRect();
+    QPixmap *pixmap = new QPixmap(rect.size().toSize());
+    QPainter painter(pixmap);
+    QStyleOptionGraphicsItem options;
+    options.exposedRect = QRect(rect.toRect());
+    grabItem(item, &painter, &options);
+    painter.end();
+//    QLabel *l = new QLabel;
+//    l->setPixmap(*pixmap);
+//    l->show();
+
+    // Create a pixmap item to represent the real item during the rotation.
+    m_pixmapItem = new QGraphicsPixmapItem(item->parentItem());
+    item->scene()->addItem(m_pixmapItem);
+    m_pixmapItem->setPos(item->pos());
+    m_pixmapItem->setTransform(item->transform());
+    m_pixmapItem->setPixmap(*pixmap);
+    m_pixmapItem->setZValue(item->zValue());
+    m_pixmapItem->show();
+
+    m_rotationAngle = angle;
+    if(m_rotationAngle < -180)
+        m_rotationAngle = 360 + m_rotationAngle;
+    else if(m_rotationAngle > 180)
+        m_rotationAngle = m_rotationAngle - 360;
+
+    m_rotationAngle = m_rotationAngle % 360;
+
+    m_lastRotationValue = 0;
+    m_timeLine.start();
+}
+
+void GraphicsItemRotater::updateRotationStep(qreal value)  // slot
+{
+    QSizeF size = m_pixmapItem->boundingRect().size();
+    qreal dx = size.width()/2;
+    qreal dy = size.height()/2;
+    QTransform transform = m_pixmapItem->transform();
+    transform.translate(dx, dy);
+    transform.rotate((value - m_lastRotationValue) * m_rotationAngle);
+    transform.translate(-dx, -dy);
+    m_pixmapItem->setTransform(transform);
+
+    m_lastRotationValue = value;
+}
+
+static bool zValueSort(const QGraphicsItem *item1, const QGraphicsItem *item2) {
+    return item1->zValue() < item2->zValue();
+}
+
+void GraphicsItemRotater::grabItem(QGraphicsItem *item, QPainter *painter, const QStyleOptionGraphicsItem *option,
+                                   QWidget *widget) {
+    QList<QGraphicsItem *> childs = item->childItems();
+    qSort(childs.begin(), childs.end(), zValueSort);
+    foreach(QGraphicsItem *child, childs) {
+        if(child->isVisible()) {
+            QTransform transform = painter->transform();
+            transform.translate(child->pos().x(), child->pos().y());
+            painter->setTransform(transform);
+            child->paint(painter, option, widget);
+            transform.translate(-child->pos().x(), -child->pos().y());
+            painter->setTransform(transform);
+        }
+    }
+}