reszip/src/resdict.cpp
changeset 0 f58d6ec98e88
child 9 7c80ebddf816
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-1:000000000000 0:f58d6ec98e88
       
     1 /*
       
     2 * Copyright (c) 1997-1999 Nokia Corporation and/or its subsidiary(-ies).
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:
       
    15 *
       
    16 */
       
    17 
       
    18 #include <e32svr.h>
       
    19 
       
    20 #include "resdict.h"
       
    21 #include "resentry.h"
       
    22 
       
    23 // TDictEntry
       
    24 
       
    25 TDictEntry::TDictEntry()
       
    26 	{
       
    27 	iUses = 0;
       
    28 	iRef = 0;
       
    29 	iEmbedded = 0;
       
    30 	}
       
    31 
       
    32 void TDictEntry::Close()
       
    33 	{
       
    34 	delete iEmbedded;
       
    35 	iEmbedded = NULL;
       
    36 	}
       
    37 
       
    38 
       
    39 
       
    40 TDesC8& TDictEntry::Data()
       
    41 	{
       
    42 	return iData;
       
    43 	}
       
    44 
       
    45 TInt TDictEntry::Use()
       
    46 	{
       
    47 	return ((iUses + iRef - 1) * (Data().Length()-1));
       
    48 	}
       
    49 
       
    50 
       
    51 void TDictEntry::CreateEmbeddedDict(TInt aDictIndex,CDictArray* aDict)
       
    52 	{
       
    53 	// Create list of embedded dictionary strings
       
    54 	iEmbedded = new(ELeave)CResEntry(aDict);
       
    55 	iEmbedded->AddPlainDataL((TUint8*)iData.Ptr(), iData.Length());
       
    56 	iEmbedded->MatchDictL(aDictIndex);
       
    57 	}
       
    58 
       
    59 
       
    60 // CDictArray
       
    61 
       
    62 CDictArray::CDictArray()
       
    63 :CArrayFixFlat<TDictEntry>(10)
       
    64 	{
       
    65 	}
       
    66 
       
    67 CDictArray::~CDictArray()
       
    68 	{
       
    69 	TInt count = Count();
       
    70 	for (TInt ii=0; ii<count; ii++)
       
    71 		{
       
    72 		At(ii).Close();
       
    73 		}
       
    74 	}
       
    75 
       
    76 
       
    77 TInt CDictArray::AddEntryL(TDesC8& aEntry)
       
    78 	{
       
    79 	TInt size = aEntry.Size();
       
    80 	TInt pos = 0;
       
    81 	TInt count = Count();
       
    82 	for (TInt ii=0; ii<count; ii++)
       
    83 		{
       
    84 		TInt dSize = At(ii).Data().Size();
       
    85 		if (dSize < size)
       
    86 			{
       
    87 			break;
       
    88 			}
       
    89 		else
       
    90 			{
       
    91 			if (At(ii).Data().Compare(aEntry) == 0)
       
    92 				{
       
    93 				// Already in dict
       
    94 				return ii;
       
    95 				}
       
    96 			pos++;
       
    97 			}
       
    98 		}
       
    99 	TDictEntry entry;
       
   100 	entry.iData = aEntry;
       
   101 	entry.iUses=0;
       
   102 	InsertL(pos, entry);
       
   103 	return pos;
       
   104 	}
       
   105 
       
   106 
       
   107 void CDictArray::OrderedInsertL(TDictEntry& aEntry)
       
   108 	{
       
   109 	TInt use = aEntry.Use();
       
   110 	if (use < 1)
       
   111 		return;	 // Don't bother to insert entries that aren't used
       
   112 
       
   113 	TInt count = Count();
       
   114 	for (TInt ii=0; ii<count; ii++)
       
   115 		{
       
   116 		TInt entryUse = At(ii).Use();
       
   117 		if (entryUse < use)
       
   118 			{
       
   119 			InsertL(ii, aEntry);
       
   120 			return;
       
   121 			}
       
   122 		}
       
   123 	AppendL(aEntry);
       
   124 	}
       
   125 
       
   126 void CDictArray::SizedInsertL(TDictEntry& aEntry)
       
   127 	{
       
   128 	TInt len = aEntry.Data().Length();
       
   129 
       
   130 	TInt count = Count();
       
   131 	for (TInt ii=0; ii<count; ii++)
       
   132 		{
       
   133 		TInt entryLen = At(ii).Data().Length();
       
   134 		if (entryLen < len)
       
   135 			{
       
   136 			InsertL(ii, aEntry);
       
   137 			return;
       
   138 			}
       
   139 		}
       
   140 	AppendL(aEntry);
       
   141 	}
       
   142 
       
   143 TInt CDictArray::DictionarySize()
       
   144 	{
       
   145 	TInt count = Count();
       
   146 	TInt size = 0;
       
   147 	for (TInt jj=0; jj<count; jj++)
       
   148 		{
       
   149 		size += At(jj).iEmbedded->Size(iDictionaryBits);
       
   150 		}
       
   151 
       
   152 	size = (size + 7) / 8;
       
   153 
       
   154 	// Add dictionary index
       
   155 	size += (count * 2);
       
   156 
       
   157 	// Add dictionary header
       
   158 
       
   159 	size += 2;
       
   160 
       
   161 	return size;
       
   162 	}
       
   163 
       
   164 TInt CDictArray::DictionarySizeWithoutIndex()
       
   165 	{
       
   166 	TInt count = Count();
       
   167 	TInt size = 0;
       
   168 	for (TInt jj=0; jj<count; jj++)
       
   169 		{
       
   170 		size += At(jj).iEmbedded->Size(iDictionaryBits);
       
   171 		}
       
   172 	size = (size + 7) / 8;
       
   173 	return size;
       
   174 	}
       
   175 
       
   176 
       
   177 
       
   178 TInt CDictArray::BitSize(TInt aIndex)
       
   179 	{
       
   180 	return At(aIndex).iEmbedded->Size(iDictionaryBits);
       
   181 	}
       
   182 
       
   183 
       
   184 void CDictArray::WriteBitStreamL(TInt aIndex, TBitWriter& aWriter)
       
   185 	{
       
   186 	RDebug::Print(_L("Dictionary Entry: %d"), aIndex);
       
   187 	At(aIndex).iEmbedded->WriteBitStreamL(aWriter,iDictionaryBits);
       
   188 	}
       
   189 
       
   190 
       
   191 
       
   192 CDictArray* CDictArray::DuplicateL()
       
   193 	{
       
   194 	CDictArray* newDict = new(ELeave)CDictArray();
       
   195 	CleanupStack::PushL(newDict);
       
   196 	TInt count = Count();
       
   197 	for (TInt ii=0; ii<count; ii++)
       
   198 		{
       
   199 		newDict->AppendL(At(ii));
       
   200 		}
       
   201 	CleanupStack::Pop();	// newDict;
       
   202 	return newDict;
       
   203 	}
       
   204