/*

 * Copyright (c) 1997-2009 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: 

 * Header FNTREADR.H

 *

 */

 #ifndef __FNTREADR_H__

 #define __FNTREADR_H__

 #include "FNTRECRD.H"

 #include "LST.H"

 #include "READER.H"

 /**

 @internalComponent

 */

 const uint16 KMaxSizeCodeSectionBitmap = 0x7FFF;

 const int KMaxBitmapWidth = 0x7f;

 const int KMaxBitmapHeight = 0x7f;

 const int KNumberOfBitsInByte = 8; 

 /**

 @internalComponent

 */

 const int KLowestPermittedCharacterEncoding = 0x0000;

 const int KHighestPermittedCharacterEncoding = 0xffff;

 /**

 @internalComponent

 */

 const int KMaxNumberRepeatedLines = 15;	// maximum number of repeated lines in font compiler

 /**

 KFillCharacterOffset is a significant offset that is set when a character within a code section is 

 not in the font. This means that for these fill characters nothing is stored within the binary

 data part of the code section

 @internalComponent

 */

 const uint16 KFillCharacterOffset = 0x7FFF;

 /**

 Resource identifiers

 @internalComponent

 */

 const String IdentFontBitmap("FontBitmap");

 const String IdentSTARTFONT("STARTFONT");

 const String IdentTypeface("Typeface");

 const String IdentFontStoreFile("FontStoreFile");

 /**

 Char identifiers

 @internalComponent

 */

 const String IdentAdjust("Adjust");

 const String IdentEndChar("EndChar");

 /**

 Codesection identifiers

 @internalComponent

 */

 const String IdentEndCodeSection("EndCodeSection");

 const String IdentChar("Char");

 /**

 Fontbitmap identifiers

 @internalComponent

 */

 const String IdentEndFontBitmap("EndFontBitmap");

 const String IdentUid("Uid");

 const String IdentBold("Bold");

 const String IdentItalic("Italic");

 const String IdentFontBitmapProportional("Proportional");

 const String IdentCellHeight("CellHeight");

 const String IdentAscent("Ascent");

 const String IdentMaxNormalCharWidth("MaxNormalCharWidth");

 const String IdentBitmapEncoding("BitmapEncoding");

 const String IdentCodeSection("CodeSection");

 const String IdentMaxConsecutiveFillChars("MaxConsecutiveFillChars"); 

 /**

 BDF CHAR identifiers

 @internalComponent

 */

 const String IdentBDFFileHeader("STARTFONT");

 const String IdentBDFComment("COMMENT");

 const String IdentBDFContentVersion("CONTENTVERSION");

 const String IdentBDFFontBitmap("FONT"); 

 const String IdentBDFPointSize("SIZE");

 const String IdentBDFFontDesignBox("FONTBOUNDINGBOX");

 const String IdentBDFWritingDirection("METRICSSET");

 const String IdentBDFStartProperties("STARTPROPERTIES");

 const String IdentBDFPropertyUid("UID");

 const String IdentBDFPropertyBold("BOLD");

 const String IdentBDFPropertyItalic("ITALIC");

 const String IdentBDFPropertyFontAscent("FONTASCENT");

 const String IdentBDFPropertyFontDescent("FONTDESCENT");

 const String IdentBDFPropertyMaxNormalCharWidth("MAXNORMALCHARWIDTH");

 const String IdentBDFPropertyMaxConsecutiveFillChars("MAXCONSECUTIVEFILLCHARS");

 const String IdentBDFEndProperties("ENDPROPERTIES");

 const String IdentBDFNumChars("CHARS");	// To be used as sanity check on BDF files

 const String IdentBDFCharLabel("STARTCHAR");

 const String IdentBDFChar("ENCODING");

 const String IdentBDFCursorMove("DWIDTH");

 const String IdentBDFBitmapSizeAndDisplacement("BBX");

 const String IdentBDFStartBitmap("BITMAP");

 const String IdentBDFEndChar("ENDCHAR");

 const String IdentBDFEndFontBitmap("ENDFONT");

 /**

 Typeface identifiers

 @internalComponent

 */

 const String IdentEndTypeface("EndTypeface");

 const String IdentName("Name");

 const String IdentTypefaceProportional("Proportional");

 const String IdentSerif("Serif");

 const String IdentSymbol("Symbol");

 const String IdentFontBitmaps("FontBitmaps");

 const String IdentWidthFactor("WidthFactor");

 const String IdentHeightFactor("HeightFactor");

 const String IdentEndFontBitmaps("EndFontBitmaps");

 /**

 Fontstorefile identifiers

 @internalComponent

 */

 const String IdentEndFontStoreFile("EndFontStoreFile");

 const String IdentFilename("Filename");

 const String IdentCollectionUid("CollectionUid");

 const String IdentKPixelAspectRatio("KPixelAspectRatio");

 const String IdentTypefaces("Typefaces");

 const String IdentEndTypefaces("EndTypefaces");

 const String IdentExtraFontBitmaps("FontBitmaps");

 const String IdentEndExtraFontBitmaps("EndFontBitmaps");

 const String IdentCopyrightInfo("CopyrightInfo");

 const String IdentEndCopyrightInfo("EndCopyrightInfo");

 class CroppedValues;

 class FontReader : public Reader

 /**

 @internalComponent

 */

 	{

 public:

 	enum TReadFileFormat

 		{

 		ESymbianGDFFormat,

 		EBDFFormat

 		};

 public:

 	FontReader();

 	boolean Read(const String& aFilename);

 	boolean ReadBDFCharacter(int aCode);

 	boolean ParseMetricsFromBDF(int aNumberCharsInFile, int aMaxConsecutiveFillChars);

 	boolean ReadMetricFromBDFCharacter(CharacterMetrics* aMetric, CroppedValues* aCropped);

 	boolean ReadBDFFontBitmap();

 	boolean ReadTypeface();

 	boolean ReadFontStoreFile();

 	int Store(const String& aFilename);

 	boolean CharLine(String& aCharLine);

 private:

 	boolean ReadBDFChars(const int aNumberOfGlyphsInFile, const int aMaxConsecutiveFillChars);

 	boolean DoMetricAnalysis(int& aHeight, int& aWidth, int& aLeftAdjust, int& aRightAdjust, int& aAscent);

 	void ErrorIdentifierExpected(const String& aIdentifier);

 	boolean CompareBitmapLines(int aLine1, int aLine2);

 	boolean BitmapLineEmpty(int aLine);

 	boolean BitmapColumnEmpty(int aColumn);

 	void WriteFillCharacters(int aNumberConsecutive);

 	void PrintoutCodeSection(const BitmapCodeSection* aCodeSection) const;

 private:

 	FontStore iFontStore;

 	FontStoreFile* iFontStoreFile;

 	CharacterMetrics* iCharacterMetrics;

 	BitmapCodeSection* iCodeSection;

 	FontBitmap* iFontBitmap;

 	FntTypeface* iTypeface;

 	TReadFileFormat iReadFileFormat;

 	int iBitArray[KMaxBitmapWidth][KMaxBitmapHeight];

 	int iBitmapWidth;

 	int iBitmapHeight;

 	int iDefaultXMoveInPixels;

 	int iDefaultYMoveInPixels;

 	String iFileName;

 	};

 #endif