tests/benchmarks/uimodels/GraphicsViewBenchmark/widgets/backgrounditem.cpp
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     1 /****************************************************************************
       
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     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
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     6 ** This file is part of the examples of the Qt Toolkit.
       
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    15 ** GNU Lesser General Public License Usage
       
    16 ** Alternatively, this file may be used under the terms of the GNU Lesser
       
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    28 ** GNU General Public License Usage
       
    29 ** Alternatively, this file may be used under the terms of the GNU
       
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    40 ****************************************************************************/
       
    41 
       
    42 #include <QStyleOptionGraphicsItem>
       
    43 #include <QGraphicsSceneResizeEvent>
       
    44 #include <QPainter>
       
    45 #include <QRectF>
       
    46 
       
    47 #include "backgrounditem.h"
       
    48 #include "theme.h"
       
    49 
       
    50 BackgroundItem::BackgroundItem(const QString &filename, QGraphicsWidget *parent)
       
    51     : GvbWidget(parent),
       
    52       m_background(),
       
    53       m_fileName(filename)
       
    54 {
       
    55     setContentsMargins(0,0,0,0);
       
    56 
       
    57     connect(Theme::p(), SIGNAL(themeChanged()), this, SLOT(themeChange()));
       
    58 }
       
    59 
       
    60 BackgroundItem::~BackgroundItem()
       
    61 {
       
    62     
       
    63 }
       
    64 
       
    65 void BackgroundItem::resizeEvent(QGraphicsSceneResizeEvent *event)
       
    66 {
       
    67     GvbWidget::resizeEvent(event);
       
    68     m_background = Theme::p()->pixmap(m_fileName, size().toSize());
       
    69 }
       
    70 
       
    71 void BackgroundItem::paint(QPainter *painter,
       
    72                            const QStyleOptionGraphicsItem *option,
       
    73                            QWidget *widget)
       
    74 {
       
    75     Q_UNUSED(widget)
       
    76     painter->setCompositionMode(QPainter::CompositionMode_Source);
       
    77     painter->drawPixmap(option->exposedRect, m_background, option->exposedRect);
       
    78 }
       
    79 
       
    80 void BackgroundItem::themeChange()
       
    81 {
       
    82     m_background = Theme::p()->pixmap(m_fileName, size().toSize());
       
    83     update();
       
    84 }
       
    85