perfmon/ui/hb/app/src/popupdatacontainer.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 31 Aug 2010 15:15:20 +0300
branchRCL_3
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permissions -rw-r--r--
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/*
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* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: 
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*
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*/
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#include "popupdatacontainer.h"
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#include "enginewrapper.h"
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#include <QGraphicsLinearLayout>
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#include <HbLabel>
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#include <QPainter>
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const int leftMargin = 2;
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PopupDataContainer::PopupDataContainer(const EngineWrapper& engine, QGraphicsItem *parent) :
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    DataContainer(engine, parent)
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{
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    connect(&engine, SIGNAL(samplesUpdated()), this, SLOT(samplesUpdated()));
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    HbFontSpec spec(HbFontSpec::Secondary);
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    mFont = spec.font();
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    mFont.setPixelSize(12);
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}
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void PopupDataContainer::samplesUpdated()
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{
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    update();
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}
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void PopupDataContainer::paint (QPainter *painter,
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    const QStyleOptionGraphicsItem *option,
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    QWidget *widget)
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{
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    Q_UNUSED(option);
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    Q_UNUSED(widget);
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    // set proper font and prepare font metrics for text height calculation
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    painter->setFont(mFont);
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    QFontMetricsF metrics(mFont);
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    QList<SampleEntry> entries = engine().sampleEntries();
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    qreal verticalPos = metrics.height();
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    for (int i=0; i<entries.length(); i++)
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    {
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        if (engine().settings().dataPopupSources().isEnabled(i) &&
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            entries.at(i).sampleCount() > 0)
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        {
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            const SampleEntry &entry = entries.at(i);
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            const SampleData &sample = entry.sample(0);
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            if (i == ESourceCPU)
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            {
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                // CPU
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                double perc = sample.mSize > 0 ?
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                              100. - 100. * sample.mFree / sample.mSize : 0;
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                QString text = tr("%1 %2%").arg(entry.description()).
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                               arg(perc, 0, 'f', 2);
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                painter->drawText(QPointF(leftMargin, verticalPos), text);
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            }
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            else
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            {
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                // RAM and Drives
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                QString text = tr("%1 free %L2%3").arg(entry.description()).
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                               arg(sample.mFree).arg(entry.unitShort());
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                painter->drawText(QPointF(leftMargin, verticalPos), text);
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            }
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            verticalPos += metrics.height();
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        }
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    }
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}