sl@0: /*
sl@0: * Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: * All rights reserved.
sl@0: * This component and the accompanying materials are made available
sl@0: * under the terms of "Eclipse Public License v1.0"
sl@0: * which accompanies this distribution, and is available
sl@0: * at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: *
sl@0: * Initial Contributors:
sl@0: * Nokia Corporation - initial contribution.
sl@0: *
sl@0: * Contributors:
sl@0: *
sl@0: * Description: 
sl@0: * Header FNTRECRD.CPP
sl@0: *
sl@0: */
sl@0: 
sl@0: 
sl@0: #include "FNTRECRD.H"
sl@0: 
sl@0: const int KNumberOfPopularIndices = 128;
sl@0: const int KNumberOfBitsInByte = 8;
sl@0: const int KNumberOfBitsInTwoBytes = 16;
sl@0: 
sl@0: BitmapOffset::BitmapOffset(uint16 aBitmapOffset)
sl@0:  :	iBitmapOffset(aBitmapOffset)
sl@0: 	{}
sl@0: 
sl@0: void BitmapOffset::Externalize(ostream& out)
sl@0: 	{
sl@0: 	out.write((char*) &iBitmapOffset,sizeof(iBitmapOffset));
sl@0: 	}
sl@0: 
sl@0: CharacterMetrics::CharacterMetrics()
sl@0:  :	iAscentInPixels(0),
sl@0: 	iHeightInPixels(0),
sl@0: 	iLeftAdjustInPixels(0),
sl@0: 	iMoveInPixels(0),
sl@0: 	iRightAdjustInPixels(0)
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: 
sl@0: void CharacterMetrics::Externalize(ostream& out)
sl@0: 	{
sl@0: 	out.write((char*) &iAscentInPixels, sizeof(iAscentInPixels));
sl@0: 	out.write((char*) &iHeightInPixels, sizeof(iHeightInPixels));
sl@0: 	out.write((char*) &iLeftAdjustInPixels, sizeof(iLeftAdjustInPixels));
sl@0: 	out.write((char*) &iMoveInPixels, sizeof(iMoveInPixels));
sl@0: 	out.write((char*) &iRightAdjustInPixels, sizeof(iRightAdjustInPixels));
sl@0: 	}
sl@0: 
sl@0: MetricDistributionMember::~MetricDistributionMember()
sl@0: 	{
sl@0: 	delete iMetric;
sl@0: 	}
sl@0: 
sl@0: MetricDistributionMember::MetricDistributionMember()
sl@0:  :	iFrequency(0), iMetric(0)
sl@0: 	{}
sl@0: 
sl@0: CharacterMetrics* MetricDistributionMember::Metric() const
sl@0: 	{
sl@0: 	return iMetric;
sl@0: 	}
sl@0: 
sl@0: int MetricDistributionMember::Frequency() const
sl@0: 	{
sl@0: 	return iFrequency;
sl@0: 	}
sl@0: 
sl@0: void MetricDistributionMember::SetFrequency(int aFrequency)
sl@0: 	{
sl@0: 	iFrequency = aFrequency;
sl@0: 	}
sl@0: 
sl@0: void MetricDistributionMember::IncrementFrequency(int aIncrementBy)
sl@0: 	{
sl@0: 	iFrequency += aIncrementBy;
sl@0: 	}
sl@0: 
sl@0: void MetricDistributionMember::SetMetric(CharacterMetrics* aMetric)
sl@0: 	{
sl@0: 	iMetric = aMetric;
sl@0: 	}
sl@0: 
sl@0: void MetricDistributionMember::Externalize(ostream& out)
sl@0: 	{
sl@0: 	iMetric->Externalize(out);
sl@0: 	}
sl@0: 
sl@0: MetricDistribution::~MetricDistribution()
sl@0: 	{
sl@0: 	iCharacterMetricsList.Destroy();
sl@0: 	}
sl@0: 
sl@0: MetricDistribution* MetricDistribution::New()
sl@0: 	{
sl@0: 	return new MetricDistribution;
sl@0: 	}
sl@0: 
sl@0: MetricDistribution::MetricDistribution()
sl@0: 	{}
sl@0: 
sl@0: void MetricDistribution::SortMetricsByFrequency()
sl@0: 	{	// Only need sort the most popular 128, since after this 2 bytes will always be used
sl@0: 	int maxIndex = iCharacterMetricsList.Size();
sl@0: 	if (maxIndex > KNumberOfPopularIndices)
sl@0: 		{
sl@0: 		maxIndex = KNumberOfPopularIndices;
sl@0: 		}
sl@0: 	for(int indexToSet = 0; indexToSet < maxIndex; indexToSet++)
sl@0: 		{
sl@0: 		const CharacterMetrics& mostPopularRemaining = MostPopular(indexToSet);
sl@0: 		SetIndex(mostPopularRemaining, indexToSet);
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: void MetricDistribution::SetIndex(const CharacterMetrics& aMetrics, int aIndexToSet)
sl@0: 	{
sl@0: 	int currentPos = Index(aMetrics);
sl@0: 	if (currentPos != aIndexToSet)
sl@0: 		{
sl@0: 		MetricDistributionMember* match = iCharacterMetricsList[currentPos];
sl@0: 		MetricDistributionMember* swapPos = iCharacterMetricsList[aIndexToSet];
sl@0: 
sl@0: 		CharacterMetrics* tempMet = match->Metric();
sl@0: 		const int tempFreq = match->Frequency();
sl@0: 
sl@0: 		match->SetMetric(swapPos->Metric());
sl@0: 		match->SetFrequency(swapPos->Frequency());
sl@0: 		swapPos->SetMetric(tempMet);
sl@0: 		swapPos->SetFrequency(tempFreq);
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: void MetricDistribution::AddOrIncrementMetric(const CharacterMetrics& aMetrics, int aFrequency)
sl@0: 	{
sl@0: 	boolean match = false;
sl@0: 	const CharacterMetrics* trial = NULL;
sl@0: 	MetricDistributionMember* link = NULL;
sl@0: 	int index;
sl@0: 	int maxIndex = iCharacterMetricsList.Size();
sl@0: 	
sl@0: 	for(index = 0; index < maxIndex && !match; index++)
sl@0: 		{
sl@0: 		link = iCharacterMetricsList[index];
sl@0: 		if (link)
sl@0: 			trial = link->Metric();
sl@0: 		if (trial && (trial->iAscentInPixels == aMetrics.iAscentInPixels)
sl@0: 			&& (trial->iHeightInPixels == aMetrics.iHeightInPixels)
sl@0: 			&& (trial->iLeftAdjustInPixels == aMetrics.iLeftAdjustInPixels)
sl@0: 			&& (trial->iMoveInPixels == aMetrics.iMoveInPixels)
sl@0: 			&& (trial->iRightAdjustInPixels == aMetrics.iRightAdjustInPixels))
sl@0: 			{
sl@0: 			match = true;
sl@0: 			}
sl@0: 		}
sl@0: 	if (match)
sl@0: 		{
sl@0: 		link->IncrementFrequency(aFrequency);
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		MetricDistributionMember* newLink = new MetricDistributionMember;
sl@0: 		newLink->IncrementFrequency(aFrequency);
sl@0: 		CharacterMetrics* newMetric = new CharacterMetrics(aMetrics);
sl@0: 		newLink->SetMetric(newMetric);
sl@0: 		iCharacterMetricsList.Add(newLink);
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: const CharacterMetrics& MetricDistribution::MostPopular(int aStartIndex)
sl@0: 	{
sl@0: 	// finds the most popular metric above index aStartIndex. Allows for a fairly quick sort of the metircs to be done.
sl@0: 	MetricDistributionMember* link = NULL;
sl@0: 	const CharacterMetrics* mostPopular = NULL;
sl@0: 	int frequencyOfMostPopular = 0;
sl@0: 	int frequency = 0;
sl@0: 	int count;
sl@0: 	int total = 0; // for debugging
sl@0: 	const int size = iCharacterMetricsList.Size();
sl@0: 	for (count = aStartIndex; count < size; count++)
sl@0: 		{
sl@0: 		link = iCharacterMetricsList[count];
sl@0: 		frequency = link->Frequency();
sl@0: 		if (frequency>frequencyOfMostPopular)
sl@0: 			{
sl@0: 			mostPopular = link->Metric();
sl@0: 			frequencyOfMostPopular = frequency;
sl@0: 			}
sl@0: 		total += frequency;
sl@0: 		}
sl@0: 	return *mostPopular;
sl@0: 	}
sl@0: 
sl@0: int MetricDistribution::Index(const CharacterMetrics& aMetrics)
sl@0: 	{
sl@0: 	boolean same = false;
sl@0: 	CharacterMetrics* match = NULL;
sl@0: 	int i;
sl@0: 	int size = iCharacterMetricsList.Size();
sl@0: 	// see if we have this one already
sl@0: 	for (i = 0; i < size; i++)
sl@0: 		{
sl@0: 		if (iCharacterMetricsList[i])
sl@0: 			{
sl@0: 			match = iCharacterMetricsList[i]->Metric();
sl@0: 			}
sl@0: 		if ((match->iAscentInPixels == aMetrics.iAscentInPixels)
sl@0: 			&& (match->iHeightInPixels == aMetrics.iHeightInPixels)
sl@0: 			&& (match->iLeftAdjustInPixels == aMetrics.iLeftAdjustInPixels)
sl@0: 			&& (match->iMoveInPixels == aMetrics.iMoveInPixels)
sl@0: 			&& (match->iRightAdjustInPixels == aMetrics.iRightAdjustInPixels))
sl@0: 			{
sl@0: 			same = true;
sl@0: 			break;
sl@0: 			}
sl@0: 		}
sl@0: 	if (!same)
sl@0: 		{
sl@0: 		i = -1;	// not found
sl@0: 		}
sl@0: 	return i;
sl@0: 	}
sl@0: 
sl@0: void MetricDistribution::Externalize(ostream& out)
sl@0: 	{
sl@0: 	streamoff idOffset = iStreamId;
sl@0: 	out.write(reinterpret_cast<char*>(&idOffset), sizeof(idOffset));
sl@0: 	int32 numMetrics = iCharacterMetricsList.Size();
sl@0: 	out.write(reinterpret_cast<char*>(&numMetrics), sizeof(numMetrics));
sl@0: 	}
sl@0: 
sl@0: void MetricDistribution::ExternalizeComponents(ostream& out)
sl@0: 	{
sl@0: 	iStreamId = out.tellp();
sl@0: 	iCharacterMetricsList.Externalize(out);
sl@0: 	}
sl@0: 
sl@0: void Characters::Externalize(ostream& out)
sl@0: 	{
sl@0: 	iStreamId = out.tellp();
sl@0: 	iBitmapOffsetList.Externalize(out);
sl@0: 	}
sl@0: 
sl@0: Characters::~Characters()
sl@0: 	{
sl@0: 	iBitmapOffsetList.Destroy();
sl@0: 	}
sl@0: 
sl@0: ByteList::ByteList()
sl@0:  :	iString(), iOffset(0)
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: void ByteList::AddBit(char aBit)
sl@0: 	{
sl@0: 	if (iOffset > 7)
sl@0: 		NewByte();
sl@0: 	const char mask = 1;
sl@0: 	aBit = char(aBit & mask);
sl@0: 	char byte = char(aBit << iOffset);
sl@0: 	int index = iString.Length() - 1;
sl@0: 	iString[index] = char(iString[index] | byte);
sl@0: 	iOffset++;
sl@0: 	}
sl@0: 
sl@0: void ByteList::NewByte()
sl@0: 	{
sl@0: 	char byte = 0;
sl@0: 	iString += byte;
sl@0: 	iOffset = 0;
sl@0: 	}
sl@0: 
sl@0: int ByteList::Length() const
sl@0: 	{
sl@0: 	return iString.Length();
sl@0: 	}
sl@0: 
sl@0: void ByteList::Externalize(ostream& out)
sl@0: 	{
sl@0: 	int32 length = iString.Length();
sl@0: 	out.write((char*) &length, sizeof(length));
sl@0: 	out.write(iString.Text(), length);
sl@0: 	}
sl@0: 
sl@0: void CharactersBitmap::Externalize(ostream& out)
sl@0: 	{
sl@0: 	iStreamId = out.tellp();
sl@0: 	iByteList.Externalize(out);
sl@0: 	}
sl@0: 
sl@0: void CharactersBitmap::AddIndex(int aIndex)
sl@0: 	{// Add index to metrics into the bitmap code section
sl@0: 	 // Use 1 byte for most popular indices, 2 bytes otherwise
sl@0: 	int power;
sl@0: 	if (aIndex < KNumberOfPopularIndices)
sl@0: 		{
sl@0: 		iByteList.AddBit(0);
sl@0: 		power = KNumberOfBitsInByte - 1;
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		iByteList.AddBit(1);
sl@0: 		power = KNumberOfBitsInTwoBytes - 1;
sl@0: 		}
sl@0: 
sl@0: 	char sigBit = 0;
sl@0: 	// Add significant bits of index.
sl@0: 	for(int bitToAdd = 0; bitToAdd < power; bitToAdd++)
sl@0: 		{
sl@0: 		sigBit = char(aIndex >> bitToAdd);
sl@0: 		iByteList.AddBit(sigBit);
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: void BitmapCodeSection::Externalize(ostream& out)
sl@0: 	{
sl@0: 	out.write((char*) &iStart, sizeof(iStart));
sl@0: 	out.write((char*) &iEnd, sizeof(iEnd));
sl@0: 	streamoff idOffset = iCharacters.iStreamId;
sl@0: 	out.write(reinterpret_cast<char*>(&idOffset), sizeof(idOffset));
sl@0: 	idOffset = iCharactersBitmap.iStreamId;
sl@0: 	out.write(reinterpret_cast<char*>(&idOffset), sizeof(idOffset));
sl@0: 	}
sl@0: 	
sl@0: void BitmapCodeSection::ExternalizeComponents(ostream& out)
sl@0: 	{
sl@0: 	iCharacters.Externalize(out);
sl@0: 	iCharactersBitmap.Externalize(out);
sl@0: 	}
sl@0: 	
sl@0: FontBitmap::FontBitmap()
sl@0:  :	iPosture(PostureUpright),
sl@0: 	iStrokeWeight(StrokeWeightNormal),
sl@0: 	iIsProportional(efalse),
sl@0: 	iCellHeightInPixels(0),
sl@0: 	iAscentInPixels(0),
sl@0: 	iMaxCharWidthInPixels(0),
sl@0: 	iMaxNormalCharWidthInPixels(0),
sl@0: 	iBitmapEncoding(0)
sl@0: 	{
sl@0: 	iCharacterMetrics = MetricDistribution::New();
sl@0: 	}
sl@0: 
sl@0: void FontBitmap::Externalize(ostream& out)
sl@0: 	{
sl@0: 	iStreamId = out.tellp();
sl@0: 	out.write((char*) &iUid, sizeof(iUid));
sl@0: 	out.put((char) iPosture);
sl@0: 	out.put((char) iStrokeWeight);
sl@0: 	out.put((char) iIsProportional);
sl@0: 	out.write((char*) &iCellHeightInPixels, sizeof(iCellHeightInPixels));
sl@0: 	out.write((char*) &iAscentInPixels, sizeof(iAscentInPixels));
sl@0: 	out.write((char*) &iMaxCharWidthInPixels, sizeof(iMaxCharWidthInPixels));
sl@0: 	out.write((char*) &iMaxNormalCharWidthInPixels, sizeof(iMaxNormalCharWidthInPixels));
sl@0: 	out.write((char*) &iBitmapEncoding, sizeof(iBitmapEncoding));
sl@0: 	iCharacterMetrics->Externalize(out);
sl@0: 	iCodeSectionList.Externalize(out);
sl@0: 	}
sl@0: 
sl@0: void FontBitmap::ExternalizeComponents(ostream& out)
sl@0: 	{
sl@0: 	// write out characters and chactersbitmap records
sl@0: 	iCharacterMetrics->ExternalizeComponents(out);
sl@0: 	int size = iCodeSectionList.Size();
sl@0: 	for (int i = 0; i < size; i++)
sl@0: 		{
sl@0: 		iCodeSectionList[i]->ExternalizeComponents(out);
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: FontBitmap::~FontBitmap()
sl@0: 	{
sl@0: 	iCodeSectionList.Destroy();
sl@0: 	delete iCharacterMetrics;
sl@0: 	}
sl@0: 
sl@0: TypefaceFontBitmap::TypefaceFontBitmap(FontBitmap* aFontBitmap)
sl@0:  :	iFontBitmap(aFontBitmap),
sl@0: 	iFontBitmapUid(KNullUid),
sl@0: 	iWidthFactor(1),
sl@0: 	iHeightFactor(1)
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: TypefaceFontBitmap::TypefaceFontBitmap(uid aFontBitmapUid)
sl@0:  :	iFontBitmap(NULL),
sl@0: 	iFontBitmapUid(aFontBitmapUid),
sl@0: 	iWidthFactor(1),
sl@0: 	iHeightFactor(1)
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: void TypefaceFontBitmap::Externalize(ostream& out)
sl@0: 	{
sl@0: 	if (iFontBitmap)
sl@0: 		out.write((char*) &iFontBitmap->iUid, sizeof(iFontBitmap->iUid));
sl@0: 	else
sl@0: 		out.write((char*) &iFontBitmapUid, sizeof(iFontBitmapUid));
sl@0: 	out.write((char*) &iWidthFactor, sizeof(iWidthFactor));
sl@0: 	out.write((char*) &iHeightFactor, sizeof(iHeightFactor));
sl@0: 	}
sl@0: 
sl@0: void FntTypeface::Externalize(ostream& out)
sl@0: 	{
sl@0: 	iStreamId = out.tellp();
sl@0: 	Typeface::Externalize(out);
sl@0: 	iTypefaceFontBitmapList.Externalize(out);
sl@0: 	}
sl@0: 
sl@0: FontStoreFile::FontStoreFile()
sl@0:  :	iCollectionUid(KNullUid),
sl@0: 	iKPixelAspectRatio(1000),
sl@0: 	iCopyrightInfo(),
sl@0: 	iDataStreamId(0)
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: void FontStoreFile::AddTypeface(FntTypeface *aTypeface)
sl@0: 	{
sl@0: 	iTypefaceList.Add(aTypeface);
sl@0: 	for (int i = 0; i < aTypeface->iTypefaceFontBitmapList.Size(); i++)
sl@0: 		{
sl@0: 		if (aTypeface->iTypefaceFontBitmapList[i]->iFontBitmap)
sl@0: 			iFontBitmapList.Add(aTypeface->iTypefaceFontBitmapList[i]->iFontBitmap);
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: void FontStoreFile::AddFontBitmap(FontBitmap* aFontBitmap)
sl@0: 	{
sl@0: 	iFontBitmapList.Add(aFontBitmap);
sl@0: 	}
sl@0: 
sl@0: void FontStoreFile::Externalize(ostream& out)
sl@0: 	{
sl@0: 	ExternalizeHeader(out);
sl@0: 	ExternalizeComponents(out);
sl@0: 	}
sl@0: 
sl@0: void FontStoreFile::ExternalizeHeader(ostream& out)
sl@0: 	{
sl@0: 	out.write((char*) &KStoreWriteOnceLayoutUid, sizeof(KStoreWriteOnceLayoutUid));
sl@0: 	out.write((char*) &KFontStoreFileUid, sizeof(KFontStoreFileUid));
sl@0: 	out.write((char*) &KNullUid, sizeof(KNullUid));
sl@0: 	out.write((char*) &KFontStoreFileChecksum, sizeof(KFontStoreFileChecksum));
sl@0: 	streamoff idOffset = iStreamId;
sl@0: 	out.write(reinterpret_cast<char*>(&idOffset), sizeof(idOffset));
sl@0: 	iStreamId = out.tellp();
sl@0: 	out.write((char*) &KFnttranVersion, sizeof(KFnttranVersion));
sl@0: 	out.write((char*) &iCollectionUid, sizeof(iCollectionUid));
sl@0: 	out.write((char*) &iKPixelAspectRatio, sizeof(iKPixelAspectRatio));
sl@0: 	idOffset = iDataStreamId;
sl@0: 	out.write(reinterpret_cast<char*>(&idOffset), sizeof(idOffset));
sl@0: 	iCopyrightInfo.Externalize(out);
sl@0: 	}
sl@0: 
sl@0: void FontStoreFile::ExternalizeComponents(ostream& out)
sl@0: 	{
sl@0: 	iDataStreamId = out.tellp();
sl@0: 	iFontBitmapList.Externalize(out);
sl@0: 	iTypefaceList.Externalize(out);
sl@0: 	iFontBitmapList.ExternalizeComponents(out);
sl@0: 	}
sl@0: 
sl@0: boolean FontStore::Store(const String& aFilename)
sl@0: 	{
sl@0: 	boolean state = efalse;
sl@0: 	ofstream fout;
sl@0: 	String string = aFilename;
sl@0: 	fout.open(string.Text(), ios::binary);
sl@0: 	if (!fout.fail())
sl@0: 		{
sl@0: 		iFontStoreFile->Externalize(fout);
sl@0: 		fout.close();
sl@0: 		fout.open(string.Text(), ios::binary | ios::trunc);
sl@0: 		iFontStoreFile->Externalize(fout);
sl@0: 		fout.close();
sl@0: 		state = etrue;
sl@0: 		}
sl@0: 	return state;
sl@0: 	}
sl@0: 
sl@0: void FontStore::AddFontStoreFile(FontStoreFile* aFontStoreFile)
sl@0: 	{
sl@0: 	iFontStoreFile = aFontStoreFile;
sl@0: 	}
sl@0: 
sl@0: void FontStore::AddFontBitmap(FontBitmap *aFontBitmap)
sl@0: 	{
sl@0: 	iFontBitmapList.Add(aFontBitmap);
sl@0: 	}
sl@0: 
sl@0: Record* FontStore::FindFontBitmap(String& aLabel)
sl@0: 	{
sl@0: 	return iFontBitmapList.LabelToRecord(aLabel);
sl@0: 	}
sl@0: 
sl@0: void FontStore::AddTypeface(FntTypeface *aTypeface)
sl@0: 	{
sl@0: 	iTypefaceList.Add(aTypeface);
sl@0: 	}
sl@0: 
sl@0: Record* FontStore::FindTypeface(String& aLabel)
sl@0: 	{
sl@0: 	return iTypefaceList.LabelToRecord(aLabel);
sl@0: 	}
sl@0: 
sl@0: FontStore::FontStore()
sl@0:  :	iFontStoreFile(NULL),
sl@0: 	iFontBitmapList(),
sl@0: 	iTypefaceList()
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: FontStore::~FontStore()
sl@0: 	{
sl@0: 	delete iFontStoreFile;
sl@0: 	iFontBitmapList.Destroy();
sl@0: 	iTypefaceList.Destroy();
sl@0: 	}