/*

 * Name        : Screenshot.cpp

 * Description : Performs screenshot and bitmap conversion

 * Project     : This file is part of OpenMAR, an Open Mobile Augmented Reality browser

 * Website     : http://OpenMAR.org

 *

 * Copyright (c) 2010 David Caabeiro

 *

 * All rights reserved. This program and the accompanying materials are made available 

 * under the terms of the Eclipse Public License v1.0 which accompanies this 

 * distribution, and is available at http://www.eclipse.org/legal/epl-v10.html

 *

 */

#include "Screenshot.h"

#include <eikenv.h>

#include <fbs.h>

#include <ImageConversion.h> 

#include <PathInfo.h>

#include <w32std.h>

#include "Logger.h"

CScreenshot* CScreenshot::NewL(MObserver& aObserver, const TSize& aSize, const TDisplayMode& aDisplayMode)

{

    CScreenshot* self = new(ELeave) CScreenshot(aObserver);

    CleanupStack::PushL(self);

    self->ConstructL(aSize, aDisplayMode);

    CleanupStack::Pop();

    return self;

}

CScreenshot::~CScreenshot()

{

    Cancel();

    delete iEncoder;

    delete iBitmapContext;

    delete iBitmapDevice;

    delete iBitmap;

}

CScreenshot::CScreenshot(MObserver& aObserver)

    :CActive(EPriorityStandard), iObserver(aObserver)

{

    CActiveScheduler::Add(this);

}

void CScreenshot::ConstructL(const TSize& aSize, const TDisplayMode& aDisplayMode)

{

    // Create bitmap where screen bitmap will be blitted

    iBitmap = new(ELeave) CFbsBitmap;

    iBitmap->Create(aSize, aDisplayMode);

    iBitmapDevice = CFbsBitmapDevice::NewL(iBitmap);

    User::LeaveIfError(iBitmapDevice->CreateContext(iBitmapContext));

    LOGARG("Bitmap capture size is %d x %d", aSize.iWidth, aSize.iHeight);

}

void CScreenshot::RequestL(const CFbsBitmap& aSourceBitmap, const TSize& aSize)

{

    // Blit screen bitmap into internal bitmap

    iBitmapContext->BitBlt(TPoint(0, 0), &aSourceBitmap, TRect(TPoint(0, 0), aSize));

    // Generate file name

    TTime time;

    time.HomeTime();

    TDateTime dateTime = time.DateTime();

#if defined(__WINS__)

    iFilename.Copy(PathInfo::PhoneMemoryRootPath());

#else

    iFilename.Copy(PathInfo::MemoryCardRootPath());

#endif

    iFilename.Append(PathInfo::ImagesPath());

    _LIT(KFormat, "%04d%02d%02d%02d%02d%02d.png");

    iFilename.AppendFormat(KFormat, dateTime.Year(), dateTime.Month() + 1, dateTime.Day() + 1, dateTime.Hour(), dateTime.Minute(), dateTime.Second());

    // Convert to PNG

    delete iEncoder;

    iEncoder = 0;

    iEncoder = CImageEncoder::FileNewL(CCoeEnv::Static()->FsSession(), iFilename, CImageEncoder::EOptionAlwaysThread, KImageTypePNGUid);

    iEncoder->Convert(&iStatus, *iBitmap);

    SetActive();

}

void CScreenshot::RunL()

{   

    iObserver.ScreenshotReadyL(iStatus.Int(), iFilename);

}

void CScreenshot::DoCancel()    

{

    if (iEncoder)

        iEncoder->Cancel();

}