fep/aknfep/src/aknfepzhuyinconvertion.cpp
changeset 0 eb1f2e154e89
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/fep/aknfep/src/aknfepzhuyinconvertion.cpp	Tue Feb 02 01:02:04 2010 +0200
@@ -0,0 +1,487 @@
+/*
+* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0""
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:           
+ *      Provides the TZhuyinSymbolsMethods definition 
+ *
+*/
+
+
+
+
+
+
+
+
+
+
+
+
+#include "aknfepzhuyinconvertion.h"
+
+_LIT(KFullStop, "\x002E");
+_LIT(KToneMark0, "\x0020");
+_LIT(KToneMark1, "\x02CA");
+_LIT(KToneMark2, "\x02C7");
+_LIT(KToneMark3, "\x02CB");
+_LIT(KToneMark4, "\x02D9");
+
+const TInt KMinZhuyinUnicode = 0x3105;
+const TInt KMaxZhuyinUnicode = 0x3129;
+const TInt KMaxBufLen = 100;
+const TInt KMaxChineseCount = 7;
+
+// ---------------------------------------------------------
+// Convert aArray to a descriptor outputed through aOutDes.
+// ---------------------------------------------------------
+//
+TInt TZhuyinSymbolsMethods::Convert2Des ( CDesCArrayFlat* aArray, TDes& aOutDes )
+    {
+    TInt bufLen = 0;
+    TInt i = 0;
+    for ( ; i < aArray->Count(); i++ )
+        {
+        bufLen = bufLen + aArray->MdcaPoint(i).Length();
+        if ( bufLen > KMaxBufLen ) 
+            {
+            return i;
+            }
+        aOutDes.Append(aArray->MdcaPoint(i));
+        }
+    return i;
+    }
+
+// ---------------------------------------------------------
+// Update the content in eep control.
+// ---------------------------------------------------------
+//
+TBool TZhuyinSymbolsMethods::UpdateEEPContent( 
+    CPtiEngine* aPtiengine,
+    CAknFepZhuyinAnalyser* aAnalyser,
+    CDesCArrayFlat* aZhuyinSymbols, 
+    CDesCArrayFlat* aChineseDisped,
+    CDesCArrayFlat* aCandidateList,
+    TDes& aOutDes,
+    TBool& aPhraseCreation)
+    {
+    TBool rnt = EFalse;
+    TRAPD( ret, rnt = UpdateEEPContentL( aPtiengine, 
+                                         aAnalyser, 
+                                         aZhuyinSymbols, 
+                                         aChineseDisped, 
+                                         aCandidateList, 
+                                         aOutDes, 
+                                         aPhraseCreation ) );
+    if ( KErrNone != ret )
+        {
+        return EFalse;
+        }
+    
+    return rnt;
+    }
+
+// ---------------------------------------------------------
+// clean.
+// ---------------------------------------------------------
+//
+void CleanArray( TAny* aAny )
+    {
+    RPointerArray<HBufC>* implArray = 
+        reinterpret_cast< RPointerArray<HBufC>*> ( aAny );
+    implArray->ResetAndDestroy();
+    implArray->Close();
+    }
+
+
+// ---------------------------------------------------------
+// Update the content in eep control.
+// ---------------------------------------------------------
+//
+TBool TZhuyinSymbolsMethods::UpdateEEPContentL( 
+    CPtiEngine* aPtiengine,
+    CAknFepZhuyinAnalyser* aAnalyser,
+    CDesCArrayFlat* aZhuyinSymbols, 
+    CDesCArrayFlat* aChineseDisped,
+    CDesCArrayFlat* aCandidateList,
+    TDes& aOutDes,
+    TBool& aPhraseCreation)
+    {
+    TBuf<KMaxBufLen> buf;
+    Convert2Des( aZhuyinSymbols, buf );
+    RPointerArray<HBufC> list;
+    TCleanupItem cleanitem( CleanArray, &list );
+    CleanupStack::PushL( cleanitem );
+    
+    HBufC* retString = aPtiengine->GetCandidatesByInputString( buf, list,
+        EFalse );
+    if ( buf.Length() == 0 )
+        {
+        Convert2Des( aChineseDisped, aOutDes );
+        delete retString;
+        aCandidateList->Reset();
+        aCandidateList->Compress();
+        CleanupStack::PopAndDestroy();
+        return ETrue;
+        }
+    
+    CleanupStack::PushL( retString );
+    TBool valid = aAnalyser->AnalyzeL( buf );
+       
+    HBufC* showbuf = aAnalyser->LastAnalysisResult();
+    aCandidateList->Reset();
+    if ( retString->Compare( buf ) != 0 || 
+        retString->Compare( buf ) == 0 && aChineseDisped->Count() != 0 )
+        {
+        // Display the candidates for the 1st chinese character group.
+        aPhraseCreation = ETrue;
+        list.ResetAndDestroy();
+        TInt length = 0;
+        TInt i = 0;
+        for ( i = 0; i < showbuf->Length(); i++ )
+            {
+            if ( showbuf->Mid(i, 1).Compare(KFullStop) == 0 )
+                {
+                length = i;
+                break;
+                }
+            if ( showbuf->Mid(i, 1).Compare(KToneMark0) == 0 
+                || showbuf->Mid(i, 1).Compare(KToneMark1) == 0 
+                || showbuf->Mid(i, 1).Compare(KToneMark2) == 0
+                || showbuf->Mid(i, 1).Compare(KToneMark3) == 0
+                || showbuf->Mid(i, 1).Compare(KToneMark4) == 0 )
+                {
+                length = i + 1;
+                break;
+                }
+            }
+        if ( i == showbuf->Length())
+            {
+            length = i;
+            }
+        CleanupStack::PopAndDestroy( retString );
+        TPtrC tmp = showbuf->Left( length );
+        retString = aPtiengine->GetCandidatesByInputString( tmp, list, EFalse );
+        CleanupStack::PushL( retString );
+        for (TInt ii = 0; ii < list.Count(); ii++ )
+            {
+            aCandidateList->AppendL( *(list[ii]) );
+            }
+        }
+    else
+        {
+        aPhraseCreation = EFalse;
+        for (TInt i = 0; i < list.Count(); i++ )
+            {
+            aCandidateList->AppendL( *(list[i]) );
+            }
+        }
+    CleanupStack::Pop( retString );
+    CleanupStack::PopAndDestroy();
+    Convert2Des( aChineseDisped, aOutDes );
+    if ( !valid )
+        {
+        aOutDes.Append(buf);
+        }
+    else
+        aOutDes.Append(*showbuf);
+    delete retString;
+    
+    if ( aZhuyinSymbols->Count() > 0
+        && ( aZhuyinSymbols->MdcaPoint(0).Compare(KToneMark0) == 0 
+        || aZhuyinSymbols->MdcaPoint(0).Compare(KToneMark1) == 0 
+        || aZhuyinSymbols->MdcaPoint(0).Compare(KToneMark2) == 0
+        || aZhuyinSymbols->MdcaPoint(0).Compare(KToneMark3) == 0
+        || aZhuyinSymbols->MdcaPoint(0).Compare(KToneMark4) == 0 ) )
+        {
+        valid = EFalse;
+        }
+    
+    if ( aCandidateList->Count() != 0 && aOutDes.Length() == 1 )
+        {
+        valid = ETrue;
+        }
+    return valid;
+    }
+
+// ---------------------------------------------------------
+// Commit a chinese character from candidate list.
+// ---------------------------------------------------------
+//
+TBool TZhuyinSymbolsMethods::AppendChineseChar( 
+    const TDes& aChinese,
+    CAknFepZhuyinAnalyser* aAnalyser,
+    CDesCArrayFlat* aZhuyinSymbols, 
+    CDesCArrayFlat* aChineseDisped,
+    CDesCArrayFlat* aZhuyinSymbolsForChinese )
+    {
+    TBuf<KMaxBufLen> buf;
+    buf.Copy(aChinese);
+    if ( aChineseDisped->Count() >= KMaxChineseCount )
+        {
+        return ETrue;
+        }
+    buf.Zero();
+    Convert2Des(aZhuyinSymbols, buf);
+    TBool valid = EFalse;
+    TRAPD( err, valid = aAnalyser->AnalyzeL( buf ) );
+    if ( KErrNone != err )
+        {
+        return EFalse;
+        }
+    
+    if ( !valid )
+        {
+        return EFalse;
+        }
+    else
+        {
+        HBufC* showbuf = aAnalyser->LastAnalysisResult();
+        TInt length = 0;
+        TInt i = 0;
+        for ( i = 0; i < showbuf->Length(); i++ )
+            {
+            if ( showbuf->Mid(i, 1).Compare(KFullStop) == 0 )
+                {
+                length = i;
+                break;
+                }
+            if ( showbuf->Mid(i, 1).Compare(KToneMark0) == 0 
+                || showbuf->Mid(i, 1).Compare(KToneMark1) == 0 
+                || showbuf->Mid(i, 1).Compare(KToneMark2) == 0
+                || showbuf->Mid(i, 1).Compare(KToneMark3) == 0
+                || showbuf->Mid(i, 1).Compare(KToneMark4) == 0 )
+                {
+                length = i + 1;
+                break;
+                }
+            }
+        if ( i == showbuf->Length())
+            {
+            length = i;
+            }
+        // update arrays
+        TRAPD( ret, aChineseDisped->AppendL(aChinese) );
+        if ( KErrNone != ret )
+            {
+            return EFalse;
+            }
+        
+        TBuf<KMaxBufLen> tmpbuf;
+        for ( TInt ii = 0; ii < length; ii++ )
+            {
+            tmpbuf.Append(aZhuyinSymbols->MdcaPoint(ii));
+            }
+        TRAPD( ret1, aZhuyinSymbolsForChinese->AppendL(tmpbuf) );
+        if ( KErrNone != ret1 )
+            {
+            return EFalse;
+            }
+        aZhuyinSymbols->Delete(0, length);
+        if ( aChineseDisped->Count() >= KMaxChineseCount 
+            || aZhuyinSymbols->Count() == 0 )
+            {
+            return ETrue;
+            }
+        else
+            {
+            return EFalse;
+            }
+        }
+    }
+
+// ---------------------------------------------------------
+// append the zhuyin symbol to the zhuyin array form zhuyin buf.
+// ---------------------------------------------------------
+//
+void TZhuyinSymbolsMethods::GetZhuyinSymbolsL( 
+    CDesCArrayFlat* aZhuyinSymbols,  
+    const TDesC& aInputBuf )
+    {
+    for ( TInt i = 0; i < aInputBuf.Length(); i++ )
+        {
+        aZhuyinSymbols->InsertL(i, aInputBuf.Mid(i,1));
+        }
+    }
+
+// ---------------------------------------------------------
+// Delete a chinese character from aChineseDisped array
+// and update related array in the meantime.
+// ---------------------------------------------------------
+//
+TBool TZhuyinSymbolsMethods::DeleteChineseChar(
+    CDesCArrayFlat* aZhuyinSymbols, 
+    CDesCArrayFlat* aChineseDisped,
+    CDesCArrayFlat* aZhuyinSymbolsForChinese )
+    {
+    if ( aChineseDisped->Count() == 0 )
+        {
+        return EFalse;
+        }
+    TBuf<KMaxBufLen> buf;
+    buf.Append( aZhuyinSymbolsForChinese->MdcaPoint( 
+        aZhuyinSymbolsForChinese->Count() - 1 ) );
+    
+    TRAPD( ret, GetZhuyinSymbolsL( aZhuyinSymbols, buf ) );
+    if ( KErrNone != ret )
+        {
+        return EFalse;
+        }
+    
+    aChineseDisped->Delete(aChineseDisped->Count() - 1);
+    aZhuyinSymbolsForChinese->Delete(aZhuyinSymbolsForChinese->Count() - 1);
+    return ETrue;
+    }
+
+// ---------------------------------------------------------
+// Delete a chinese character from aChineseDisped array
+// and update related array in the meantime.
+// ---------------------------------------------------------
+//
+TBool TZhuyinSymbolsMethods::DeleteZhuyinSymbol(
+    CDesCArrayFlat* aZhuyinSymbols, 
+    TInt aKeyStroke
+    )
+    {
+    TInt delCount = 0;
+    if ( aKeyStroke == aZhuyinSymbols->Count() )
+        {
+        delCount++;
+        }
+    else if ( aKeyStroke < aZhuyinSymbols->Count() )
+        {
+        delCount++;
+        }
+    else
+        {
+        return EFalse;
+        }
+    aZhuyinSymbols->Delete( aKeyStroke-1, delCount );
+    return ETrue;
+    }
+
+// ---------------------------------------------------------
+// Refresh the cursor position according to the input parameters.
+// ---------------------------------------------------------
+//
+TInt TZhuyinSymbolsMethods::RefreshCursorPos (
+    TInt aChineseNum,
+    const TDes& aShownContent,
+    TInt aKeyStrokePos )
+    {
+    TInt cursorPos = aChineseNum;
+    TInt index = 0;
+    TInt count = 0;
+    if ( aShownContent.Length() - aChineseNum <= 0 )
+        {
+        return aChineseNum;
+        }
+    
+    if ( 0 == aKeyStrokePos )
+        {
+        return aChineseNum;
+        }
+    
+    TPtrC zhuyinShown = aShownContent.Right( aShownContent.Length() - 
+        aChineseNum );
+    
+    if ( zhuyinShown.Length() == 0 )
+        {
+        return aChineseNum;
+        }
+    
+    for ( TInt i = 0; i < zhuyinShown.Length(); ++i )
+        {
+        if ( 0 != zhuyinShown.Mid( i, 1 ).Compare( KFullStop ) )
+            {
+            count = count + 1;
+            }
+        if ( aKeyStrokePos == count )
+            {
+            index = i + 1;
+            break;
+            }
+        }
+
+    return cursorPos + index;
+    
+    }
+
+// ---------------------------------------------------------
+// Get the number of zhuyin symbol group.
+// ---------------------------------------------------------
+//
+TInt TZhuyinSymbolsMethods::GetChineseCount(const TDes& aShown)
+    {
+    TInt i = 0;
+    TInt count = 0;
+    for ( i = 0; i < aShown.Length(); i++ )
+        {
+        if ( aShown.Mid(i, 1).Compare(KFullStop) == 0
+            || aShown.Mid(i, 1).Compare(KToneMark0) == 0 
+            || aShown.Mid(i, 1).Compare(KToneMark1) == 0 
+            || aShown.Mid(i, 1).Compare(KToneMark2) == 0
+            || aShown.Mid(i, 1).Compare(KToneMark3) == 0
+            || aShown.Mid(i, 1).Compare(KToneMark4) == 0 )
+            {
+            count++;
+            }
+        }
+    if ( aShown.Right(1).Compare(KToneMark0) == 0 
+        || aShown.Right(1).Compare(KToneMark1) == 0 
+        || aShown.Right(1).Compare(KToneMark2) == 0
+        || aShown.Right(1).Compare(KToneMark3) == 0
+        || aShown.Right(1).Compare(KToneMark4) == 0 )
+        {
+        return count;
+        }
+    else
+        {
+        return count + 1;
+        }
+    }
+
+// ---------------------------------------------------------
+// Whether the aFirstPhrase is a Zhuyin symbol or not.
+// ---------------------------------------------------------
+//
+TBool TZhuyinSymbolsMethods::IsZhuyinSymbol( const TDesC& aFirstPhrase )
+    {
+    if ( aFirstPhrase.Length() > 1 )
+        {
+        return EFalse;
+        }
+    
+    if ( aFirstPhrase[0] >= KMinZhuyinUnicode &&
+         aFirstPhrase[0] <= KMaxZhuyinUnicode )
+        {
+        return ETrue;
+        }
+    else
+        {
+        return EFalse;
+        }
+    }
+
+// ---------------------------------------------------------
+// Whether the aFirstPhrase is a Zhuyin symbol or not.
+// ---------------------------------------------------------
+//
+TBool TZhuyinSymbolsMethods::IsZhuyinSpelling(
+                                    const TDesC& /*aSymbol*/,
+                                    const TInt /*index*/,
+                                    CDesCArrayFlat* /*aZhuyinSymbols*/ ) 
+    {
+    return ETrue;
+    }
+
+// End of file