author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 17 Sep 2010 08:40:09 +0300 | |
changeset 63 | a145c1c7a5f4 |
permissions | -rw-r--r-- |
63
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// Copyright (c) 1997-2009 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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#ifndef __LANGUTILIMPL_H__ |
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#define __LANGUTILIMPL_H__ |
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#include <f32file.h> |
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#include <e32std.h> |
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/** |
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Specifies the maximum length of the numerical part of the suffix. |
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|
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If this is changed the documentation of the following functions |
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must also be updated: |
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|
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LangUtil::NearestLanguageFile() |
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TNearestLanguageFileFinder::CountDigitsFromEndInValidSuffix() |
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TNearestLanguageFileFinder::SetFileName() |
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*/ |
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const TInt KMaxSuffixLength = 5; |
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class RDirectoryScanner |
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/** |
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@internalAll |
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*/ |
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{ |
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public: |
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virtual TInt Open(RFs& aFs, const TDesC& aMatchPattern) = 0; |
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virtual TInt Next(TEntry& aOut) = 0; |
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virtual void Close() = 0; |
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virtual ~RDirectoryScanner() {} |
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}; |
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|
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NONSHARABLE_CLASS(RRealDirectoryScanner) : public RDirectoryScanner |
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/** |
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@internalAll |
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*/ |
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{ |
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public: |
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virtual TInt Open(RFs& aFs, const TDesC& aMatchPattern); |
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virtual TInt Next(TEntry& aOut); |
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virtual void Close(); |
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private: |
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RDir iDir; |
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}; |
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/** |
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* Add a language to the end of the language path, unless it is already |
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* present. On entry, the language path must have an ELangNone entry at its |
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* end. This will be true on exit also. |
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* @internalAll |
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*/ |
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void AddLanguage(TLanguagePath& aPath, TLanguage aNewLanguage); |
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/** |
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* Create a language path from the current language, ideal language and locale. |
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* The path may have up to eight entries in it. |
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* @internalAll |
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*/ |
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void MakeLanguageDowngradePath(TLanguagePath& aPath, |
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TLanguage aCurrent, TLanguage aIdeal, const TLocale& aLocale); |
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/** |
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* This class contains all the functions for working out the nearest language |
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* file. It can be derived from for test code purposes. |
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* @internalAll |
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*/ |
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NONSHARABLE_CLASS(TNearestLanguageFileFinder) |
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{ |
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public: |
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TNearestLanguageFileFinder(const RFs& aFs); |
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TBool SetFileName(TFileName& aFileName); |
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TLanguage Language(); |
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// put back the original suffix and drive letter |
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void RepairFileName(); |
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// add the preset custom resource drive, if any, to iDrives. |
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TInt AddCustomResourceDrive(); |
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// add all remaining drives to iDrives. iDrives must not have more than one |
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// drive in it on entry. |
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void AddAllDrives(); |
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// Tries to append the language code to iFileName. This is 00..09 or just the number. |
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// If there was not enough space, EFalse is returned. |
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TBool AppendLanguageCode(TLanguage aLanguage); |
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// Search the drives in iDrives for the file named iFileName. |
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// iFileName must have a drive specifier, which will be overwritten. |
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TBool FindDrive(); |
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// Search for files across all drives in all languages in the path plus the |
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// language-neutral file. |
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// On entry, iFileName should be the original name with a drive specifier |
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// minus the suffix. On return, iFileName will be untouched if EFalse is |
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// returned, but contain the result if ETrue is returned. |
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TBool FindLanguageAndDrive(); |
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// Test whether the filename passed in matches the stem given + numbers |
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// added to the end. Returns the number if it does, or KErrNotFound if not. |
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// aFileName must not end in a digit. |
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static TInt LanguageNumberFromFile(const TDesC& aFileName, const TDesC& aStem); |
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// Find lowest numbered file that matches iFileName, which must be without |
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// its suffix. |
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TInt FindFirstLanguageFile(RFs&); |
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// Try each drive for any language files that match iFileName. |
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// iFileName must have a directory specifier and be without its suffix. |
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// returns KErrNotFound, KErrNone or error code. |
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TInt FindFirstLanguageFileAndDrive(); |
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120 |
|
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virtual TInt GetCustomResourceDriveNumber() const; |
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|
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virtual TInt FileExists(const TDesC& aFileName) const; |
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// return our member that is our directory scanning class |
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virtual RDirectoryScanner& DirectoryScanner(); |
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virtual ~TNearestLanguageFileFinder() {} |
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127 |
|
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private: |
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TInt CountDigitsFromEnd(const TDesC& aFilename); |
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TInt CountDigitsFromEndInSuffix (const TDesC& aFilename); |
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131 |
|
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public: |
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const RFs& iFs; |
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TFileName* iFileName; |
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TLanguage iLanguage; |
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TBuf<26> iDrives; |
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TLanguagePath iPath; |
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TBuf<KMaxSuffixLength> iSuffix; |
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TInt iInitialDriveLetter; |
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// length minus the removed suffix |
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TInt iOriginalBaseLength; |
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// length plus added drive letter minus removed suffix |
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TInt iBaseLength; |
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RRealDirectoryScanner iDirScanner; |
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}; |
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|
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#endif // __LANGUTILIMPL_H__ |
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148 |