author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Wed, 13 Oct 2010 14:15:33 +0300 | |
branch | RCL_3 |
changeset 85 | 38bb213f60ba |
parent 74 | 6b5524b4f673 |
permissions | -rw-r--r-- |
63 | 1 |
/* |
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* Copyright (c) 2002-2007 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 "Pbk2PresentationUtils.h" |
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// From system |
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#include <featmgr.h> |
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#include <fbs.h> |
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/// Namespace for local PresentationUtils definitions |
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namespace __RVCT_UNS_Pbk2PresentationUtils { |
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// LOCAL CONSTANTS |
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enum TPanicCode |
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{ |
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EPanicPreCond_CopyAndReplaceChars = 1 |
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}; |
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// default presentation resource file |
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_LIT( KPbk2PresentationResFile, "Pbk2Presentation.rsc" ); |
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// Chinese presentation resource file |
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_LIT( KPbk2PresentationResFileChinese, "Pbk2PresentationChinese.rsc" ); |
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// ================= LOCAL FUNCTIONS ======================= |
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#ifdef _DEBUG |
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void Panic(TPanicCode aReason) |
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{ |
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_LIT(KPanicText, "Pbk2PresentationUtils"); |
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User::Panic(KPanicText, aReason); |
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} |
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#endif // _DEBUG |
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// Zero Width characters |
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const TUint KZWSCharacter = 0x200B; |
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const TUint KZWNJCharacter = 0x200C; |
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const TUint KZWJCharacter = 0x200D; |
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// ================= LOCAL FUNCTIONS ======================= |
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/** |
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* Check if the given char is a zero width character: |
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* Zero Width Space, Zero Width Non-Joiner |
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* or Zero Width Joiner character |
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* @param aChar Given character |
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* @return ETrue if aChar is zero width character. |
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* EFalse if aChar is not specified zero width character. |
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*/ |
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inline TBool ZWSCharacter( const TChar aChar ) |
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{ |
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const TChar zwsChar( KZWSCharacter ); |
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const TChar zwnjChar( KZWNJCharacter ); |
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const TChar zwjChar( KZWJCharacter ); |
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return ( aChar == zwsChar ) || ( aChar == zwnjChar ) || |
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( aChar == zwjChar ); |
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} |
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} // __RVCT_UNS_Pbk2PresentationUtils |
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using namespace __RVCT_UNS_Pbk2PresentationUtils; |
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// ================= MEMBER FUNCTIONS ======================= |
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// -------------------------------------------------------------------------- |
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// Pbk2PresentationUtils::TrimAllAppend |
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// -------------------------------------------------------------------------- |
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// |
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TInt Pbk2PresentationUtils::TrimAllAppend(const TDesC& aText, TDes& aDest) |
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{ |
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const TInt oldDestLength = aDest.Length(); |
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// 1. Find first non space character |
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const TInt textLength = aText.Length(); |
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TInt firstNonSpaceChar = 0; |
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while(firstNonSpaceChar < textLength |
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&& TChar(aText[firstNonSpaceChar]).IsSpace()) |
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{ |
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++firstNonSpaceChar; |
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} |
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// 2. Append the source text to destination, |
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// not including the leading spaces |
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aDest.Append(aText.Mid(firstNonSpaceChar)); |
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// 3. Trim the new part of the destination to remove |
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// trailing and middle spaces |
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TPtr ptr = aDest.MidTPtr(oldDestLength); |
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ptr.TrimAll(); |
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aDest.SetLength(oldDestLength); |
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aDest.Append(ptr); |
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return aDest.Length() - oldDestLength; |
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} |
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// -------------------------------------------------------------------------- |
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// Pbk2PresentationUtils::TrimRightAppend |
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// -------------------------------------------------------------------------- |
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// |
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EXPORT_C TInt Pbk2PresentationUtils::TrimRightAppend( |
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const TDesC& aText, TDes& aDest) |
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{ |
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// Create modifiable descriptor pointer that points to the non-used space |
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// at the end of the destination buffer |
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TPtr temp( |
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(TUint16*) aDest.MidTPtr( aDest.Length() ).Ptr(), |
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aDest.MaxLength() - aDest.Length() ); |
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temp.Append( aText ); |
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temp.TrimRight(); |
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// Update the destination descriptor length to match the actual contents |
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aDest.SetLength( aDest.Length() + temp.Length() ); |
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return temp.Length(); |
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} |
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// -------------------------------------------------------------------------- |
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// Pbk2PresentationUtils::AppendAndReplaceChars |
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// -------------------------------------------------------------------------- |
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// |
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EXPORT_C TInt Pbk2PresentationUtils::AppendAndReplaceChars |
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(TDes& aDest, const TDesC& aSrc, |
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const TDesC& aCharsToReplace, const TDesC& aReplaceChars) |
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{ |
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// Check that aDest has enough capacity |
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__ASSERT_DEBUG((aDest.MaxLength()-aDest.Length()) >= aSrc.Length(), |
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Panic(EPanicPreCond_CopyAndReplaceChars)); |
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// Check that a replacament is provided for all characters |
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__ASSERT_DEBUG(aCharsToReplace.Length() == aReplaceChars.Length(), |
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Panic(EPanicPreCond_CopyAndReplaceChars)); |
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TInt count, i; |
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const TInt sourceLenght = aSrc.Length(); |
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for (count=0, i=0; i < sourceLenght; ++i) |
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{ |
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TText ch = aSrc[i]; |
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const TInt replacePos = aCharsToReplace.Locate(aSrc[i]); |
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if (replacePos != KErrNotFound) |
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{ |
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++count; |
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ch = aReplaceChars[replacePos]; |
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} |
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aDest.Append(ch); |
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} |
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return count; |
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} |
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// -------------------------------------------------------------------------- |
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// Pbk2PresentationUtils::ReplaceNonGraphicCharacters |
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// -------------------------------------------------------------------------- |
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// |
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EXPORT_C void Pbk2PresentationUtils::ReplaceNonGraphicCharacters |
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(TDes& aText, TText aChar) |
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{ |
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const TInt len = aText.Length(); |
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for ( TInt i=0; i < len; ++i ) |
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{ |
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if ( !TChar(aText[i]).IsGraph() && |
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!ZWSCharacter( aText[i] ) ) |
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{ |
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// If non-graphic char is specified in ZWSCharacter, |
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// it will not be replaced. Otherwise replace non-graphic |
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// character with aChar. |
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aText[i] = aChar; |
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} |
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} |
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} |
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// -------------------------------------------------------------------------- |
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// Pbk2PresentationUtils::AppendWithNewlineTranslationL |
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// -------------------------------------------------------------------------- |
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// |
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EXPORT_C void Pbk2PresentationUtils::AppendWithNewlineTranslationL |
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( TDes& aBuffer, const TDesC& aText ) |
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{ |
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const TUint16 KCarriageReturn = 0x000d; |
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const TUint16 KLineFeed = 0x000a; |
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const TUint16 KParagraphSeparator = 0x2029; |
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const TInt length( aText.Length() ); |
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const TInt max( aBuffer.MaxLength() ); |
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for ( register TInt i = 0; |
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(i < length) && (aBuffer.Length() < max); ++i ) |
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{ |
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register TUint16 ch = aText[i]; |
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if ( ch == KCarriageReturn ) |
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{ |
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ch = KParagraphSeparator; |
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// Skip linefeeds that follow carriage return |
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if ( (i < length-1) && (aText[i+1] == KLineFeed) ) |
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{ |
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++i; |
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} |
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} |
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else if ( ch == KLineFeed ) |
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{ |
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ch = KParagraphSeparator; |
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} |
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aBuffer.Append( ch ); |
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} |
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} |
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// -------------------------------------------------------------------------- |
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// Pbk2PresentationUtils::PresentationResourceFile |
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// -------------------------------------------------------------------------- |
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// |
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EXPORT_C const TDesC& Pbk2PresentationUtils::PresentationResourceFile() |
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{ |
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if (FeatureManager::FeatureSupported(KFeatureIdChinese)) |
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{ |
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85
38bb213f60ba
Revision: 201039
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
74
diff
changeset
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return KPbk2PresentationResFileChinese; |
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} |
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return KPbk2PresentationResFile; |
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} |
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// -------------------------------------------------------------------------- |
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// Pbk2PresentationImageUtils::CropImageL |
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// -------------------------------------------------------------------------- |
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// |
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EXPORT_C void Pbk2PresentationImageUtils::CropImageL( |
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CFbsBitmap& aBitmap, |
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TCroppingMode aCroppingMode, |
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const TSize& aTargetSize ) |
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{ |
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const TSize sourceSize( aBitmap.SizeInPixels() ); |
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// crop the image only if the width is bigger than height |
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TBool landscape( ETrue ); |
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if( sourceSize.iHeight >= sourceSize.iWidth ) |
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{ |
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// portrait image |
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landscape = EFalse; |
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} |
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// take the shorter side |
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const TInt sideSizeH( |
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landscape ? sourceSize.iHeight : sourceSize.iWidth ); |
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const TInt targetSizeW( |
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landscape ? aTargetSize.iWidth : aTargetSize.iHeight ); |
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TInt sideSizeW( sideSizeH ); |
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if( EOptimizedCropping == aCroppingMode && |
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sideSizeW < targetSizeW ) |
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{ |
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sideSizeW = targetSizeW; |
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if( sideSizeW >= |
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( landscape ? sourceSize.iWidth : sourceSize.iHeight ) ) |
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{ |
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return; // no cropping |
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} |
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} |
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// set target size |
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const TSize targetSize( landscape? |
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TSize(sideSizeW, sideSizeH ): TSize( sideSizeH, sideSizeW ) ); |
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// crop from both sides |
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const TPoint targetPoint( ( sourceSize.iWidth - targetSize.iWidth ) / 2, |
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( sourceSize.iHeight - targetSize.iHeight ) / 2 ); |
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const TRect targetRect( targetPoint, targetSize ); |
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// create new bitmap |
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CFbsBitmap* target = new( ELeave ) CFbsBitmap; |
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CleanupStack::PushL( target ); |
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const TDisplayMode displayMode( aBitmap.DisplayMode() ); |
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User::LeaveIfError( target->Create( targetSize, displayMode ) ); |
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// get scanline |
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HBufC8* scanLine = HBufC8::NewLC( aBitmap.ScanLineLength |
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( targetSize.iWidth, displayMode ) ); |
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TPtr8 scanLinePtr = scanLine->Des(); |
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TPoint startPoint( targetRect.iTl.iX, targetRect.iTl.iY ); |
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TInt targetY = 0; |
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for (; startPoint.iY < targetRect.iBr.iY; ++startPoint.iY ) |
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{ |
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aBitmap.GetScanLine( |
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scanLinePtr, startPoint, targetSize.iWidth, displayMode ); |
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target->SetScanLine( scanLinePtr, targetY++ ); |
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} |
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aBitmap.Reset(); |
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User::LeaveIfError( aBitmap.Duplicate( target->Handle() ) ); |
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CleanupStack::PopAndDestroy( 2, target ); // scanLine, target |
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} |
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// End of File |