--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/benchmarks/uimodels/GraphicsViewBenchmark/widgets/button.cpp	Tue Feb 02 00:43:10 2010 +0200
@@ -0,0 +1,209 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://qt.nokia.com/contact.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+#include "button.h"
+#include "theme.h"
+
+static const int MinTextWidthAsChars = 8;
+
+class ButtonPrivate {
+    Q_DECLARE_PUBLIC(Button)
+
+public:
+
+    ButtonPrivate(Button *button) 
+       : down(false)
+       , q_ptr(button)
+    {
+        textItem = new QGraphicsSimpleTextItem(q_ptr);
+    }
+
+    QGraphicsSimpleTextItem *textItem;
+    bool down;
+    Button *q_ptr;
+};
+
+Button::Button(const QString &text, QGraphicsItem *parent, QSizeF minimumSize)
+    : QGraphicsWidget(parent)
+    , d_ptr(new ButtonPrivate(this)), m_background(), m_selected(false)
+{ 
+    Q_D(Button);
+    setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Fixed);
+    //setCacheMode(QGraphicsItem::ItemCoordinateCache);
+    if(minimumSize.isValid())
+        setMinimumSize(minimumSize);
+    setContentsMargins(0, 0, 0, 0);
+    d->textItem->setText(text);
+    prepareGeometryChange();
+
+    m_font = Theme::p()->font(Theme::MenuItem);
+    d->textItem->setFont(m_font);
+    connect(Theme::p(), SIGNAL(themeChanged()), this, SLOT(themeChange()));
+}
+
+Button::~Button()
+{
+    delete d_ptr;
+}
+
+bool Button::isDown()
+{
+    Q_D(Button);
+
+    return d->down;
+}
+
+void Button::setText(const QString &text)
+{
+    Q_D(Button);
+    d->textItem->setText(text);
+    update();
+}
+
+QString Button::text()
+{
+    Q_D(Button);
+    return d->textItem->text();
+}
+
+void Button::paint(QPainter *painter, 
+        const QStyleOptionGraphicsItem *option, 
+        QWidget *widget)
+{
+    Q_UNUSED(widget);
+    Q_UNUSED(option);
+    
+    if(!m_background.isNull())
+        painter->drawPixmap(QPoint(), m_background);
+    if(m_selected) {
+        painter->setBrush(Qt::black);
+        painter->setOpacity(0.2);
+        painter->drawRect(boundingRect().toRect());
+    }
+}
+
+QSizeF Button::sizeHint(Qt::SizeHint which, 
+        const QSizeF &constraint) const 
+{
+    Q_D(const Button);
+
+    switch (which)
+    {
+    case Qt::MinimumSize:
+         {
+         QFontMetricsF fm(d->textItem->font());
+         return QSizeF(MinTextWidthAsChars * fm.maxWidth(), fm.height());
+         }
+     case Qt::PreferredSize:
+         {
+         QFontMetricsF fm(d->textItem->font());
+         return QSizeF(fm.width(d->textItem->text()), fm.height());
+         }
+    default:
+        return QGraphicsWidget::sizeHint(which, constraint);
+    }
+}
+
+void Button::mousePressEvent(QGraphicsSceneMouseEvent *event)
+{
+    Q_D(Button);
+    
+    if (event->button() != Qt::LeftButton ||
+                  !sceneBoundingRect().contains(event->scenePos()))
+        return;
+
+    d->down = true;
+
+    prepareGeometryChange();
+    emit pressed();
+
+}
+
+void Button::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
+{
+    Q_D(Button);
+
+    if (!d->down || event->button() != Qt::LeftButton) 
+        return;
+
+    d->down = false;
+
+    prepareGeometryChange();
+
+    emit released();
+
+    if (sceneBoundingRect().contains(event->scenePos()))
+        emit clicked();
+}
+
+void Button::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
+{
+    Q_UNUSED(event);
+}
+
+void Button::resizeEvent(QGraphicsSceneResizeEvent *event)
+{
+    Q_D(Button);
+    QGraphicsWidget::resizeEvent(event);
+    
+    QRectF rect = d->textItem->boundingRect();
+    QRectF buttonrect = this->boundingRect();
+    d->textItem->setPos((buttonrect.width() - rect.width())/2, (buttonrect.height() - rect.height())/2 );
+    
+    QSize currentSize = buttonrect.size().toSize();
+    if( m_background.size() != currentSize && (currentSize.width() > 0 && currentSize.height() > 0)  ) {
+        m_background = Theme::p()->pixmap("status_field_middle.svg", buttonrect.size().toSize());
+    }
+}
+
+void Button::setBackground(QPixmap& background)
+{
+    m_background = background;
+}
+
+void Button::themeChange()
+{
+    Q_D(Button);
+
+    m_font = Theme::p()->font(Theme::MenuItem);
+    d->textItem->setFont(m_font);
+}