NewLC - loading multiple images problem using CMdaImageFileToBitmapUtility - Comments

Re: loading multiple images problem using CMdaImageFileToBitmapU

Rx-lee — Wed, 15 Nov 2006 08:52:52 +0100

hi sathish,

thx for the reply, but Reset() is not working.

i use watch to debug. the Value of iCoverAlbum is always the same.

-Ronald

Re: loading multiple images problem using CMdaImageFileToBitmapU

sathish.sh — Wed, 15 Nov 2006 07:07:50 +0100

Hi,

I am not sure, but you can try Reset();

Regards

Re: loading multiple images problem using CMdaImageFileToBitmapU

Rx-lee — Wed, 15 Nov 2006 04:31:07 +0100

hi andreas,

rite now i can load 2 different images. but instead of using the same iCoverAlbum, i create 2 CFbsBitmap* variable to save the image of temp and temp2 and then append it to the array. so i guess the code went wrong when using the same CFbsbitmap* variable to save the different image. any idea why this is happen?

below is some of my snippet code

Code:

void CLoadmultibmpContainer::MiuoOpenComplete(TInt aError)
{
...
TInt err;
if(iIndexLoadCoverPlaylist == 0)
{
err = iDrawList3a->Create(frameInfo.iOverallSizeInPixels,KDeviceColourDepth);
}
if(iIndexLoadCoverPlaylist == 1)
{
err = iDrawList3b->Create(frameInfo.iOverallSizeInPixels,KDeviceColourDepth);
}
...
}

void CLoadmultibmpContainer::ConvertingFromGifFinished(TInt aError)
{
...
if(iIndexLoadCoverPlaylist == 0)
{
iTempCover->AppendL(*iDrawList3a);
}
if(iIndexLoadCoverPlaylist == 1)
{
iTempCover->AppendL(*iDrawList3b);
}
...
}

the problem is i dont know how many files to be load. so it cant work this way. plz help andreas/anyone...

-Ronald

Re: loading multiple images problem using CMdaImageFileToBitmapU

Rx-lee — Mon, 13 Nov 2006 15:37:16 +0100

hi andreas,

i just did what u've told. the index is correct. dunno what went wrong.
is it something related to CActiveScheduler? any idea?

Ronald

Re: loading multiple images problem using CMdaImageFileToBitmapU

Andreas — Mon, 13 Nov 2006 12:05:55 +0100

Hi, quick walkthrough and I didn't find any errors. You:

first open a gif file
when open completes
call convert, then when it is finished, add the first bitmap converted to the array, then
again open the next gif file, repeating the process.

This should be correct. Counters seem to be used correctly too.

Have you placed brakepoints at the beginning of each function to see what really happens? I cannot suggest anything else than just to debug to see what goes wrong, since I cannot see anything in the code.

Re: loading multiple images problem using CMdaImageFileToBitmapU

Rx-lee — Mon, 13 Nov 2006 10:09:01 +0100

hi andreas,
thx for the reply.

below is some part of my codes

Code:

void CLoadmultibmpContainer::startLoadFile()
{
TBuf<50> temp,temp2;
temp.Copy(_L("c:\\loadbitmap\\tempImageJ90001"));
temp2.Copy(_L("c:\\loadbitmap\\tempImageJ90002"));

if(iPathTempCover){delete iPathTempCover;iPathTempCover=NULL;}
iPathTempCover = new (ELeave) CArrayFixFlat<TFile> (1);

TFile a;
a.iBufferPath.Zero();
a.iBufferPath.Copy(temp);
iPathTempCover->AppendL(a);

a.iBufferPath.Zero();
a.iBufferPath.Copy(temp2);
iPathTempCover->AppendL(a);

iIndexLoadCoverPlaylist = 0;

//for(TInt i=0; i<iPathTempCover->Count(); i++)
{
//iEikonEnv->InfoWinL(_L("path"),(*iPathTempCover)[iIndexLoadCoverPlaylist].iBufferPath);
iFileBitmapLoader->OpenL((*iPathTempCover)[iIndexLoadCoverPlaylist].iBufferPath);
}
}
void CLoadmultibmpContainer::MiuoCreateComplete(TInt /*aError*/)
{
}

void CLoadmultibmpContainer::MiuoOpenComplete(TInt aError)
{
if (aError == KErrNone)
{
iConvertState = EConvertStateConvertingFromGif;

TFrameInfo frameInfo;
iFileBitmapLoader->FrameInfo(0,frameInfo);

//Create a bitmap based on the size of the gif
if (iCoverAlbum){delete iCoverAlbum;iCoverAlbum = NULL;}
iCoverAlbum = new(ELeave) CFbsBitmap();

TInt err = iCoverAlbum->Create(frameInfo.iOverallSizeInPixels,KDeviceColourDepth);

if (err == KErrCouldNotConnect)
{
iEikonEnv->InfoWinL(_L("KErrCouldNotConnect"),_L(""));
return;
}
if (err == KErrArgument)
{
iEikonEnv->InfoWinL(_L("KErrArgument"),_L(""));
return;
}

TRAPD(convertErr,iFileBitmapLoader->ConvertL(*iCoverAlbum,0));

if (convertErr != KErrNone)
{
iEikonEnv->InfoWinL(_L("!KErrNone"),_L(""));
return;
}
}
else if (aError == KErrUnderflow)
{
iEikonEnv->InfoWinL(_L("KErrUnderflow"),_L(""));
//TRAPD(err,iFileBitmapLoader->OpenL(iDescCoverAlbum->Des()));
//TRAPD(err,iFileBitmapLoader->OpenL(_L("c:\\loadbitmap\\tempCover")));
return;
}
else
{
TBuf<10> temp;
temp.Format(KNumber,aError);
iEikonEnv->InfoWinL(_L("other error"),temp);
return;
}
}

void CLoadmultibmpContainer::MiuoConvertComplete(TInt aError)
{
switch (iConvertState)
{
//Finished converting gif file to bitmap
case EConvertStateConvertingFromGif:
ConvertingFromGifFinished(aError);
break;
case EConvertStateNull:
default:
ASSERT(FALSE);
}
}

//This function is called when conversion has finished
void CLoadmultibmpContainer::ConvertingFromGifFinished(TInt aError)
{
if (aError == KErrNone)
{
iConvertState = EConvertStateReady;

iTempCover->AppendL(*iCoverAlbum);

iFileBitmapLoader->Close();

iIndexLoadCoverPlaylist++;
if(iIndexLoadCoverPlaylist == iPathTempCover->Count())
{
if (iTempCover->Count() > 0)
{
iDrawState = EDrawList;
DrawNow();
}
else
{
iDrawState = EDrawMain;
DrawNow();
}
}
else
{
iFileBitmapLoader->OpenL((*iPathTempCover)[iIndexLoadCoverPlaylist].iBufferPath);
}
}
else
{
iEikonEnv->InfoWinL(_L(""),_L("Error converting file"));
}
}

when i use that codes, it works, but the image to be drawn is same "tempImageJ90002" (the latter) for both iTempCover array.
maybe that connected to the async problem.

any idea how to solve it?

Ronald

Re: loading multiple images problem using CMdaImageFileToBitmapU

Andreas — Fri, 10 Nov 2006 14:49:30 +0100

What kind of problems? How the asynchronousness relates to the problems?

Can't you start loading a new bitmap when the previous is loaded?

loading multiple images problem using CMdaImageFileToBitmapUtility

Rx-lee — Fri, 10 Nov 2006 14:12:38 +0100