/****************************************************************************+
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**+
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** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (developer.feedback@nokia.com)+
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**+
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** This file is part of the HbWidgets module of the UI Extensions for Mobile.+
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**+
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** GNU Lesser General Public License Usage+
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** This file may be used under the terms of the GNU Lesser General Public+
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** License version 2.1 as published by the Free Software Foundation and+
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** appearing in the file LICENSE.LGPL included in the packaging of this file.+
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** Please review the following information to ensure the GNU Lesser General+
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** Public License version 2.1 requirements will be met:+
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at developer.feedback@nokia.com.+
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**+
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****************************************************************************/+
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+
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#include <QPainter>+
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+
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#include "hbtransparentwindow.h"+
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+
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/*!+
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    @beta+
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    @hbwidgets+
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    \class HbTransparentWindow+
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    \brief The HbTransparentWindow class provides a easy way to create +
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    transparent area to UI.+
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+
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    A transparent window is transparent area in the UI which will show+
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    underlying content through. The HbMainWindow needs to be constructed+
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    with Hb::WindowFlagTransparent attribute to get the hole working. +
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    +
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    Transparent window will erase all the pixels in the UI underneath the +
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    widget. You can place content on top of transparent window normally.+
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    +
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    This widget is meant to be used when developer has own window surface+
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    running underneath the UI and this surface should be show through the +
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    hole in the UI e.g. video playback through own surface or HW accelerated +
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    3D content in own surface.+
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+
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    \sa HbWidget, HbMainWindow, HbMainWindow::nativeBackgroundWindow+
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*/+
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+
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/*!+
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    \reimp+
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    \fn int HbToolButton::type() const+
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 */+
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+
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/*!+
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    Constructs a new HbTransparentWindow with \a parent.+
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*/+
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HbTransparentWindow::HbTransparentWindow(QGraphicsItem *parent) :+
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    HbWidget(parent)+
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{+
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    setFlag(QGraphicsItem::ItemUsesExtendedStyleOption, true);+
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}+
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+
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+
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/*!+
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    Destructs the transparent window.+
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 */+
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HbTransparentWindow::~HbTransparentWindow()+
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{+
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}+
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+
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void HbTransparentWindow::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)+
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{+
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    Q_UNUSED(widget)+
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    QPainter::CompositionMode compositionMode = painter->compositionMode();+
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    painter->setCompositionMode(QPainter::CompositionMode_Source);+
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    painter->fillRect(option->exposedRect, QColor(0,0,0,0));+
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    painter->setCompositionMode(compositionMode);+
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}+
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+
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#include "moc_hbtransparentwindow.cpp"+
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