C++ TResourceReader类代码示例

// ---------------------------------------------------------
// CNSmlDsProvisioningAdapter::GetTitleL
// ---------------------------------------------------------
void CNSmlDsProvisioningAdapter::GetTitleL()
	{
	if( iTitle == 0 )
		{
		RFs	fs;
		User::LeaveIfError( fs.Connect() );
		CleanupClosePushL( fs );

		TFileName fileName;
		TParse parse;
		parse.Set( KNSmlDsPovisioningDirAndResource, &KDC_RESOURCE_FILES_DIR, NULL );
		fileName = parse.FullName();

		RResourceFile resourceFile;
		BaflUtils::NearestLanguageFile( fs, fileName );
		resourceFile.OpenL( fs, fileName );
		CleanupClosePushL( resourceFile );

		HBufC8* dataBuffer = resourceFile.AllocReadLC( R_SYNC_PROVISIONING_TITLE );
			
		TResourceReader reader;
		reader.SetBuffer( dataBuffer ); 
		iTitle = reader.ReadHBufC16L(); 
		CleanupStack::PopAndDestroy( 3 ); //fs, resourcefile, databuffer
		}
	}

// -----------------------------------------------------------------------------
// CPIMLocalizationData::ConstructFromResourceL
// -----------------------------------------------------------------------------
//
void CPIMLocalizationData::ConstructFromResourceL(
    RResourceFile& aResourceFile,
    TResourceReader& aReader)
{
    TInt listCount(aReader.ReadInt16());

    __ASSERT_DEBUG(listCount > iSubType,
                   User::Panic(KPIMPanicCategory, EPIMPanicGeneral));

    // Find the correct resource structure for the requested sub-type. If
    // the list type is incorrect the reader skips the incorrect resource
    // structure and tries the next one until no lists can be processed.
    for (TInt i(1); i <= listCount; i++)
    {
        TInt listType(aReader.ReadInt8());
        if (listType == iSubType)
        {
            ReadListInfoFromResourceL(aResourceFile, aReader);
            break;
        }
        else if (i < listCount)
        {
            // Advance in resource file since this wasn't the list which
            // was requested. Currently there are three LLINK:s to skip
            aReader.Advance(sizeof(TInt32) * KPIMNumListResourceLinks);
        }
    }
}

void CImConvertCharconv::SetSystemDefaultCharsetL()
	{	
	TBuf8<KMaxMIMECharSetLength> charsetName;
	TUint charset = KDefaultPlainCharset;
	
	// Try to get the character set from the Central Repository
	TInt err = GetSystemCharsetFromCenRepL(charsetName);
	if (KErrNone != err)
		{
		// That failed, fallback to reading from the resource file
		// Check the resource file..
		RResourceFile resFile;
		OpenResourceFileL(resFile, iFs);	// NB leaves if file not found

		// make sure the resource file will be closed if anything goes wrong
		TCleanupItem close( CloseResourceFile, &resFile );
		CleanupStack::PushL( close );		
			
		HBufC8* buf = resFile.AllocReadLC( DEFAULT_SYSTEM_CHARSET );

		TResourceReader reader;
		reader.SetBuffer(buf);
		charsetName.Copy(reader.ReadTPtrC8());
		
		CleanupStack::PopAndDestroy(2,&resFile); // buf, resFile
		}

	charset = GetMimeCharsetUidL(charsetName);

	// If the character set in the resource file is not recognised. Leave..
	if (charset==KUidMsvCharsetNone || !CharsetAvailable(charset))
		User::Panic(_L("IMCM"),EImcmSystemDefaultCharsetNotSupported);
	else
		iSystemDefaultCharset=charset;
	}

TBool CGsaStatePolicyStartup::ConditionalCommandAllowedL(CResourceFile& /*aResourceFile*/, TInt /*aResourceId*/)
#endif
	{
	TBool isAllowed = EFalse;        
#ifdef SYMBIAN_SSM_GRACEFUL_SHUTDOWN
   	HBufC8* buf = aResourceFile.AllocReadLC(aResourceId);
   	TResourceReader reader; 
	reader.SetBuffer(buf);
	//Read the type of the command from the resource file
	TUint16 type = reader.ReadUint16();
	CleanupStack::PopAndDestroy(buf);
	// check that the type is equal to "EGracefulShutdown"
	if(type == EGracefulShutdown)    
		{
		//Check whether SSM graceful shutdown is enabled or not
		if(IsSsmGracefulShutdown())   
			{
			isAllowed = ETrue;
			}
		}
#else
	// no commands use 'conditional_information' in Startup state command list.
	PanicNow(KPanicGsaStartupState, EConditionalInfoNotImplemented);
#endif
	return isAllowed;
	}

/**
 * @SYMTestCaseID T_ServicesTestStep_TestServiceDiscovery28L
 *
 * @SYMPREQ 538
 *
 * @SYMTestCaseDesc Test the functionality of GetServiceImplementationsLC 
 * which gets all the implementation details about a specific service 
 * @SYMTestPriority 
 *
 * @SYMTestStatus Implemented
 * 
 * @SYMTestActions Call GetServiceImplementationsLC with the service uid as parameter
 * on z: drive.\n
 * API Calls:\n	
 * RApaLsSession::GetServiceImplementationsLC(TUid aServiceUid, const TDataType& aDataType) const
 * 
 * @SYMTestExpectedResults Returns an array of TApaAppServiceInfo objects. 
 * The size of the array is equal to the number of apps offering the specified service that
 * also handles the speficied datatype. 
 * Each TApaAppServiceInfo contain an app uid and  the respective opaquedata. 
 * The returned data should be the same as that defined in the registration files.
 *  
 */
void CT_ServicesTestStep::TestServiceDiscovery28L()
	{
	INFO_PRINTF1(_L("TestServiceDiscovery28 about to start..."));
	const TUid KUidService1234 = {0x01020304};
	//const TUid KUidServerApp1 = {0x10004c56};
	const TUid KUidServerApp2 = {0x10004c57};
	
	TDataType datatype(KLitCustom1Text);
	CApaAppServiceInfoArray* array = iApaLsSession.GetServiceImplementationsLC(KUidService1234, datatype);
	TArray<TApaAppServiceInfo> implArray(array->Array());
	TInt count = implArray.Count();	
	TEST(count==1);
	_LIT(KService,"Non-localised text for service uid 0x01020304");
	TPtrC8 opaqueData;
	TResourceReader reader;
	TPtrC16 theText;
	TInt val(0);
	TUid myuid = implArray[0].Uid(); 
	TEST(myuid==KUidServerApp2);
	const CArrayFixFlat<TDataTypeWithPriority>& datatypes = implArray[0].DataTypes();
	TEST(datatypes.Count()==1);
	TEST(0 == datatypes[0].iDataType.Des8().CompareF(KLitCustom1Text));
	opaqueData.Set(implArray[0].OpaqueData());
	reader.SetBuffer(&opaqueData); // opaqueData is an LTEXT resource
	theText.Set(reader.ReadTPtrC16());
	User::LeaveIfError(val = theText.Compare(KService));
	TEST(val==KErrNone);
	CleanupStack::PopAndDestroy(array);
	array = NULL;
	}

EXPORT_C void CEikHotKeyTable::ConstructFromResourceL(TInt aResourceId)
    {
    TResourceReader reader;
    CCoeEnv::Static()->CreateResourceReaderLC(reader,aResourceId);
    iNumberPlain=reader.ReadInt16();
    if (iNumberPlain)
        {
	    const SEikHotKey* ptr=(const SEikHotKey*)reader.Ptr();
	    reader.Advance(iNumberPlain*sizeof(SEikHotKey));
	    AppendL(ptr,iNumberPlain);
        }
    iNumberCtrl=reader.ReadInt16();
    if (iNumberCtrl)
        {
	    const SEikHotKey* ptr=(const SEikHotKey*)reader.Ptr();
	    reader.Advance(iNumberCtrl*sizeof(SEikHotKey));
	    AppendL(ptr,iNumberCtrl);
        }
    iNumberShiftCtrl=reader.ReadInt16();
    if (iNumberShiftCtrl)
        {
	    const SEikHotKey* ptr=(const SEikHotKey*)reader.Ptr();
	    reader.Advance(iNumberShiftCtrl*sizeof(SEikHotKey));
	    AppendL(ptr,iNumberShiftCtrl);
        }
    CleanupStack::PopAndDestroy();
    }

// ---------------------------------------------------------------------------
// CAknMemorySelectionDialogMultiDrive::GetSystemDrivesL
// ---------------------------------------------------------------------------
//
void CAknMemorySelectionDialogMultiDrive::GetSystemDrivesL( TInt aUserDefinedId )
    {
    TInt locations = 0;
    TResourceReader reader;
    if( aUserDefinedId )
        {        
        iCoeEnv->CreateResourceReaderLC( reader, aUserDefinedId );
        reader.ReadTPtrC();   //Rede title   
        reader.ReadTPtrC();   // Read left softkey text.
        reader.ReadTPtrC();   // Read right softkey text.
        locations = reader.ReadInt16();
        if ( locations > 0 )
            {
            // Read user defined data into model
            iModel->ReadUserDefinedDataL( reader, locations );
            }
        CleanupStack::PopAndDestroy(); // reader
        }
    
    //Update root path and default folder arrays.
    iModel->UpdateDataArraysL();
    
    // Updates items in listbox.
    iModel->UpdateItemsL();
    }

/**
Static private utility used by exported inline functions to read from resource file.
@param aResourceId 
@param aEnv May be Null
@param aSize Specifies integer size: EResourceInt8, EResourceInt16, EResourceInt32
@return Integer value read from resource.  May be 8, 16 or 32 bit value.
*/
EXPORT_C TInt32 EikResourceUtils::ReadResourceIntL(TInt aResourceId,CEikonEnv* aEnv,TResourceTypeInt aSize)
//
//	Read a resource specifying a number
//
	{
	if (aEnv==NULL)
		aEnv=CEikonEnv::Static();
	__ASSERT_DEBUG(aEnv!=NULL,Panic(EEikPanicResourceNonEnvironment));
	TResourceReader reader;
	aEnv->CreateResourceReaderLC(reader,aResourceId);
	TInt32 value=0;
	switch(aSize)
		{
	case EResourceInt8:
		value=reader.ReadInt8();
		break;
	case EResourceInt16:
		value=reader.ReadInt16();
		break;
	case EResourceInt32:
		value=reader.ReadInt32();
		break;
	default:
		Panic(EEikPanicResourceInvalidNumberType);
		}
	CleanupStack::PopAndDestroy(); // resource reader
	return(value);
	}

void TAknNoteResData::ReadFromResource(TResourceReader& aResReader)
	{
    iResId = aResReader.ReadInt32();
    iTimeout = STATIC_CAST(CAknNoteDialog::TTimeout, aResReader.ReadInt32());
    iTone = STATIC_CAST(CAknNoteDialog::TTone, aResReader.ReadInt16());
    iText = aResReader.ReadTPtrC();
	}

EXPORT_C void CEikTextListBox::ConstructFromResourceL(TResourceReader& aReader)
    {
    _AKNTRACE_FUNC_ENTER;
	RestoreCommonListBoxPropertiesL(aReader);
	iRequiredCellCharWidth = aReader.ReadInt16();

    TInt array_id = aReader.ReadInt32();
    if (array_id)
		{
		CDesCArray* desArray = iCoeEnv->ReadDesCArrayResourceL(array_id);
		CleanupStack::PushL(desArray);
		iModel = new(ELeave) CTextListBoxModel;
		((CTextListBoxModel*)iModel)->ConstructL(desArray);
		CleanupStack::Pop();
		}
	else
		{
		iModel = new(ELeave) CTextListBoxModel;
		((CTextListBoxModel*)iModel)->ConstructL();
		}
	CreateItemDrawerL();
	((CTextListItemDrawer*)iItemDrawer)->SetCellWidthInChars(iRequiredCellCharWidth);
	CreateViewL();
	UpdateViewColors();
	UpdateItemDrawerColors();
	_AKNTRACE_FUNC_EXIT;
    }

/**
 * CreateStandardEntriesFromResourceFileL()
 * @param None:
 *
 * Will read messaging resource file and create entries.
 */	
void CMsvIndexContext::CreateStandardEntriesFromResourceFileL(TUint aDriveId)
	{
	// Read initial entries from resources
	TResourceReader reader;
	reader.SetBuffer(iBuf);	
	const TInt numberOfEntries = reader.ReadInt16();
	
	for (TInt index=0; index < numberOfEntries; ++index)
		{
		TMsvEntry newEntry;
				
		// Values from resource file
		newEntry.iId = MaskTMsvId(aDriveId, reader.ReadInt32());
		newEntry.iParentId = reader.ReadInt32();
		newEntry.iServiceId = reader.ReadInt32();
		newEntry.iType.iUid = reader.ReadInt32();
		newEntry.iMtm.iUid = reader.ReadInt32();
		newEntry.iData = reader.ReadInt32();
		newEntry.iDescription.Set(reader.ReadTPtrC());
		newEntry.iDetails.Set(reader.ReadTPtrC());
		newEntry.iDate.UniversalTime();
		newEntry.iSize=0;

		// Create the new entry.
		// This is required to create associated service directory.
		User::LeaveIfError(iServer.AddEntry(this, newEntry, KMsvServerId, EFalse));
		}
	}

void CDPOFPrintingDevice::ShowConfirmationQueryL() 
    {
    LOG("CDPOFPrintingDevice::ShowConfirmationQueryL begin");
  	
  	RFs fs;
	User::LeaveIfError( fs.Connect() );
	CleanupClosePushL( fs );
	TFileName resourceFileName;
	resourceFileName.Append ( KDC_RESOURCE_FILES_DIR );
	resourceFileName.Append ( KResourceFileName );
	BaflUtils::NearestLanguageFile( fs, resourceFileName );
	RResourceFile resFile;
	resFile.OpenL( fs, resourceFileName );
	CleanupClosePushL( resFile );
	HBufC8 *resBuffer = resFile.AllocReadLC( R_QTN_PRINT_DPOF_CONFIRMATION_DIALOG );
	TResourceReader reader;
	reader.SetBuffer( resBuffer );
	TPtrC ptrQuestion = reader.ReadTPtrC();
	iQuestion = ptrQuestion.AllocL();
	CleanupStack::PopAndDestroy( 3 ); // resBuffer, resFile, fs

	iPQ = CAknGlobalConfirmationQuery::NewL();
    
    iConfirmationQuery = CConfirmationQuery::NewL( *this );
    
    iConfirmationQuery->StartWaitingAnswer( );        
    
    iPQ->ShowConfirmationQueryL( iConfirmationQuery->iStatus, *iQuestion, R_AVKON_SOFTKEYS_YES_NO );

    LOG("CDPOFPrintingDevice::ShowConfirmationQueryL end");
    }

void CNSmlDSSettings::CreateHiddenProfilesL()
	{
	TFileName fileName;
	Dll::FileName( fileName );
	TParse parse;

	parse.Set( KNSmlDSProfilesRsc, &fileName, NULL );
	fileName = parse.FullName();

	RResourceFile resourceFile; 
	BaflUtils::NearestLanguageFile( iFsSession, fileName );

	TRAPD(leavecode,resourceFile.OpenL( iFsSession,fileName));
	if(leavecode != 0)
		{
		return;
		}
	CleanupClosePushL(resourceFile);
	
	HBufC8* profileRes = resourceFile.AllocReadLC( NSML_DS_PROFILES );
	TResourceReader reader;
	reader.SetBuffer( profileRes );

	CNSmlDSResourceProfiles* profileResReader = CNSmlDSResourceProfiles::NewLC( reader, this );
	profileResReader->SaveProfilesL(iResourceProfileArray);
	CleanupStack::PopAndDestroy(3); // profileResReader, profileRes, resourceFile
	}

EXPORT_C void CTestUtils::ReadResourceStringL(RResourceFile& aResFile, TInt aId, TDes& rString)
	{
	HBufC8* buf = aResFile.AllocReadLC(aId);
	TResourceReader reader;
	reader.SetBuffer(buf);
	rString.Copy(reader.ReadTPtrC());
	CleanupStack::PopAndDestroy(buf);
	}

// -----------------------------------------------------------------------------
// CTestSDKCFD::TestEHKEYConstructFromResourceL
// -----------------------------------------------------------------------------
//
TInt CTestSDKEIKHKEYT::TestEHKEYConstructFromResourceL( CStifItemParser& /*aItem*/ )
    {
    CEikHotKeyTable* hotkeytableptr = new( ELeave ) CEikHotKeyTable;
    CleanupStack::PushL( hotkeytableptr );
    
    hotkeytableptr->ConstructFromResourceL( R_TEST_HOTKEYS );
    
    TResourceReader reader;
    CCoeEnv::Static()->CreateResourceReaderLC(reader,R_TEST_HOTKEYS);
    
    TInt numberPlain( KZero );
    numberPlain = reader.ReadInt16();
    if( numberPlain )
        {
        const SEikHotKey* ptr=(const SEikHotKey*)reader.Ptr();
        reader.Advance(numberPlain*sizeof(SEikHotKey));
        TBool flag(EFalse);
        TInt keycode( KZero );
        TInt commandId( KZero );
        TInt modifires( KZero );
        commandId = ptr->iCommandId;
        flag = hotkeytableptr->HotKeyFromCommandId( commandId, keycode, modifires );
        STIF_ASSERT_TRUE( flag );
        }
    
    TInt numberCtrl( KZero );
    numberCtrl = reader.ReadInt16();
    if( numberCtrl )
        {
        const SEikHotKey* ptr=(const SEikHotKey*)reader.Ptr();
        reader.Advance(numberCtrl*sizeof(SEikHotKey));
        TBool flag(EFalse);
        TInt keycode( KZero );
        TInt commandId( KZero );
        TInt modifires(EModifierCtrl);
        commandId = ptr->iCommandId;
        flag = hotkeytableptr->HotKeyFromCommandId( commandId, keycode, modifires );
        STIF_ASSERT_TRUE( flag );
        }
    
    TInt numberShiftCtrl( KZero );
    numberShiftCtrl = reader.ReadInt16();
    if( numberShiftCtrl )
        {
        const SEikHotKey* ptr=(const SEikHotKey*)reader.Ptr();
        reader.Advance(numberShiftCtrl*sizeof(SEikHotKey));
        TBool flag(EFalse);
        TInt keycode( KZero );
        TInt commandId( KZero );
        TInt modifires(EModifierShift|EModifierCtrl);
        commandId = ptr->iCommandId;
        flag = hotkeytableptr->HotKeyFromCommandId( commandId, keycode, modifires );
        STIF_ASSERT_TRUE( flag );
        }
    
    CleanupStack::PopAndDestroy( KTwo );//reader, hotkeytableptr
    return KErrNone;
    }