1 /*

     2  * Name        : Screenshot.cpp

     3  * Description : Performs screenshot and bitmap conversion

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

     5  * Website     : http://OpenMAR.org

     6  *

     7  * Copyright (c) 2010 David Caabeiro

     8  *

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

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

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

    12  *

    13  */

    14 

    15 #include "Screenshot.h"

    16 

    17 #include <eikenv.h>

    18 #include <fbs.h>

    19 #include <ImageConversion.h> 

    20 #include <PathInfo.h>

    21 #include <w32std.h>

    22 

    23 #include "Logger.h"

    24 

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

    26 {

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

    28     CleanupStack::PushL(self);

    29     self->ConstructL(aSize, aDisplayMode);

    30     CleanupStack::Pop();

    31 

    32     return self;

    33 }

    34 

    35 CScreenshot::~CScreenshot()

    36 {

    37     Cancel();

    38 

    39     delete iEncoder;

    40     

    41     delete iBitmapContext;

    42     delete iBitmapDevice;

    43     delete iBitmap;

    44 }

    45 

    46 CScreenshot::CScreenshot(MObserver& aObserver)

    47     :CActive(EPriorityStandard), iObserver(aObserver)

    48 {

    49     CActiveScheduler::Add(this);

    50 }

    51 

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

    53 {

    54     // Create bitmap where screen bitmap will be blitted

    55     iBitmap = new(ELeave) CFbsBitmap;

    56     iBitmap->Create(aSize, aDisplayMode);

    57 

    58     iBitmapDevice = CFbsBitmapDevice::NewL(iBitmap);

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

    60 

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

    62 }

    63 

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

    65 {

    66     // Blit screen bitmap into internal bitmap

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

    68 

    69     // Generate file name

    70     TTime time;

    71     time.HomeTime();

    72 

    73     TDateTime dateTime = time.DateTime();

    74 

    75 #if defined(__WINS__)

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

    77 #else

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

    79 #endif

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

    81 

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

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

    84 

    85     // Convert to PNG

    86     delete iEncoder;

    87     iEncoder = 0;

    88 

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

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

    91     SetActive();

    92 }

    93 

    94 void CScreenshot::RunL()

    95 {   

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

    97 }

    98 

    99 void CScreenshot::DoCancel()    

   100 {

   101     if (iEncoder)

   102         iEncoder->Cancel();

   103 }