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/*
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* Copyright (c) 2009 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 FILES
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#include "perfmon_graphscontainer.h"
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#include "perfmon.hrh"
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#include "perfmon_document.h"
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#include "perfmon_appui.h"
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#include "perfmon_model.h"
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#include <AknUtils.h>
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const TInt KAmountOfMicroSecondsFitsScreen = 20 * 1000000;
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#define KRgbCustomGrey TRgb(0x808080)
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_LIT(K100p, "100%");
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_LIT(K50p, "50%");
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_LIT(K0p, "0%");
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_LIT(KPercentageFormat,"%S %d%%");
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const TInt KMicroToSecondMultiplier = 1000000;
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// ===================================== MEMBER FUNCTIONS =====================================
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void CPerfMonGraphsContainer::ConstructL(const TRect& aRect)
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{
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iModel = static_cast<CPerfMonDocument*>(reinterpret_cast<CEikAppUi*>(iEikonEnv->AppUi())->Document())->Model();
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//iFont = AknLayoutUtils::FontFromId(EAknLogicalFontPrimarySmallFont);
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iFont = LatinBold12();
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CreateWindowL();
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SetRect(aRect);
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SetBlank();
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ActivateL();
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}
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// --------------------------------------------------------------------------------------------
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CPerfMonGraphsContainer::~CPerfMonGraphsContainer()
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{
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}
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// --------------------------------------------------------------------------------------------
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void CPerfMonGraphsContainer::Draw(const TRect& aRect) const
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{
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// draw black background
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CWindowGc& gc = SystemGc();
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gc.SetBrushColor(KRgbBlack);
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gc.Clear(aRect);
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// activate font and get size
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gc.UseFont(iFont);
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TUint fontSize = iFont->FontMaxHeight();
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//TInt fontBaseOffset = iFont->DescentInPixels();
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// calculate time factor
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TReal scaleFactor = (TReal) aRect.Width() / (TReal) KAmountOfMicroSecondsFitsScreen;
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// calculate area height which is used to draw the grpahs
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TInt drawAreaHeight = aRect.Height() - fontSize - fontSize;
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// check if sample array has been constructed
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if (iModel->SampleEntryArray())
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{
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// draw vertical time lines first
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TInt verticalBarPeriodInSecs = iModel->Settings().iGraphsVerticalBarPeriod;
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if (verticalBarPeriodInSecs >= 1 && iModel->SampleEntryArray()->At(0).iSampleDataArray->Count() > 0)
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{
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// get time from the first sample
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TSampleData& firstSample = iModel->SampleEntryArray()->At(0).iSampleDataArray->At(0);
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TInt64 currentMicroSeconds = firstSample.iTimeFromStart.Int64();
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// calculate amount of microseconds exceeding value by using the modulo operator
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TInt remainderInMicroSeconds = currentMicroSeconds % (verticalBarPeriodInSecs * 1000000);
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// calculate first x pos
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TInt vbarXpos = aRect.Width() - (remainderInMicroSeconds * scaleFactor);
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// calculate the amount in seconds
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TInt barSeconds = (currentMicroSeconds - remainderInMicroSeconds) / KMicroToSecondMultiplier;
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// continue drawing periodically the vertical lines
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while (vbarXpos >= 0 && barSeconds >= 0)
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{
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// draw vertical line
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gc.SetPenColor(KRgbDarkRed);
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gc.DrawLine(TPoint(vbarXpos,fontSize+1), TPoint(vbarXpos,aRect.Height()-fontSize));
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// draw seconds value
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gc.SetPenColor(KRgbCustomGrey);
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TBuf<16> secsBuf;
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secsBuf.AppendNum(barSeconds);
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secsBuf.Append(_L("s"));
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gc.DrawText(secsBuf, TPoint(vbarXpos-(iFont->TextWidthInPixels(secsBuf)/2), aRect.Height()));
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// calculate new position
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vbarXpos -= verticalBarPeriodInSecs * 1000000 * scaleFactor;
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barSeconds -= verticalBarPeriodInSecs;
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}
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}
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// draw the basic grid
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gc.SetPenColor(KRgbCustomGrey);
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gc.DrawLine(TPoint(0,fontSize), TPoint(aRect.Width(),fontSize)); // upper line
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gc.DrawText(K100p, TPoint(0,fontSize));
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gc.DrawLine(TPoint(0,aRect.Height()/2), TPoint(aRect.Width(),aRect.Height()/2)); // mid line
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gc.DrawText(K50p, TPoint(0,aRect.Height()/2));
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gc.DrawLine(TPoint(0,aRect.Height()-fontSize), TPoint(aRect.Width(),aRect.Height()-fontSize)); // bottom line
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gc.DrawText(K0p, TPoint(0,aRect.Height()-fontSize));
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TInt c(0);
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// draw graphs for each sampled type
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for (TInt i=0; i<iModel->SampleEntryArray()->Count(); i++)
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{
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// check if this setting has been enabled and it has some data
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if (iModel->Settings().iGraphsSources.iSrcEnabled[iModel->SampleEntryPosToSettingPos(i)] && iModel->SampleEntryArray()->At(i).iSampleDataArray->Count() > 0)
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{
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// set pen color for the graph
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gc.SetPenColor(iModel->SampleEntryArray()->At(i).iGraphColor);
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// remember the position where drawing started
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/*TReal*/TInt currentXPos(aRect.Width()); // start drawing from right
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/*TReal*/TInt currentYPos(0);
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// draw samples
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for (TInt j=0; j<iModel->SampleEntryArray()->At(i).iSampleDataArray->Count() - 1; j++)
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{
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TSampleData& currentSample = iModel->SampleEntryArray()->At(i).iSampleDataArray->At(j);
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TSampleData& previousSample = iModel->SampleEntryArray()->At(i).iSampleDataArray->At(j+1);
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// calculate X position for previous (j+1)
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/*TReal*/TInt previousXPos = currentXPos -
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( (Abs(previousSample.iTimeFromStart.Int64() - currentSample.iTimeFromStart.Int64())) * scaleFactor );
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// calculate initial Y position
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if (j==0)
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{
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currentYPos = currentSample.iSize > 0 ? (TReal)(currentSample.iFree) / (TReal)currentSample.iSize * drawAreaHeight + fontSize : aRect.Height()-fontSize;
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}
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// calculate Y position for previous (j+1)
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/*TReal*/TInt previousYPos = previousSample.iSize > 0 ? (TReal)(previousSample.iFree) / (TReal)previousSample.iSize * drawAreaHeight + fontSize : aRect.Height()-fontSize;
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// draw a line between the previous and current
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gc.DrawLine(TPoint((TInt)previousXPos,(TInt)previousYPos), TPoint((TInt)currentXPos,(TInt)currentYPos));
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// draw current value in %
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if (j==0) // draw the value of first sample
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{
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TBuf<16> buf;
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buf.Format(KPercentageFormat, &iModel->SampleEntryArray()->At(i).iDescription, currentSample.iSize > 0 ? TInt( (1 - ((TReal)(currentSample.iFree) / (TReal)currentSample.iSize)) * 100) : 0 );
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gc.DrawText(buf, TPoint(0,fontSize+fontSize+c*fontSize));
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c++;
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}
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// stop drawing if we have run out of space
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if (previousXPos < 0)
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break;
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// remeber previous values
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currentXPos = previousXPos;
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currentYPos = previousYPos;
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}
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}
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}
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}
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gc.DiscardFont();
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}
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// --------------------------------------------------------------------------------------------
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TKeyResponse CPerfMonGraphsContainer::OfferKeyEventL(const TKeyEvent& aKeyEvent, TEventCode aType)
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{
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return CCoeControl::OfferKeyEventL(aKeyEvent, aType);
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}
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// --------------------------------------------------------------------------------------------
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void CPerfMonGraphsContainer::HandleResourceChange(TInt aType)
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{
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if (aType == KEikDynamicLayoutVariantSwitch)
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{
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TRect mainPaneRect;
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AknLayoutUtils::LayoutMetricsRect(AknLayoutUtils::EMainPane, mainPaneRect);
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SetRect(mainPaneRect);
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}
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else
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CCoeControl::HandleResourceChange(aType);
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}
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// --------------------------------------------------------------------------------------------
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void CPerfMonGraphsContainer::DrawUpdate()
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{
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DrawDeferred();
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}
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// --------------------------------------------------------------------------------------------
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// End of File
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