ciderpress/reformat/AWGS.h
2007-03-27 17:47:10 +00:00

93 lines
2.8 KiB
C++

/*
* CiderPress
* Copyright (C) 2007 by faddenSoft, LLC. All Rights Reserved.
* See the file LICENSE for distribution terms.
*/
/*
* AWGS file handling.
*/
#ifndef __LR_AWGS__
#define __LR_AWGS__
#include "ReformatBase.h"
/*
* Reformat an AppleWorks GS Word Processor file.
*/
class ReformatAWGS_WP : public ReformatText {
public:
ReformatAWGS_WP(void) {}
virtual ~ReformatAWGS_WP(void) {}
virtual void Examine(ReformatHolder* pHolder);
virtual int Process(const ReformatHolder* pHolder,
ReformatHolder::ReformatID id, ReformatHolder::ReformatPart part,
ReformatOutput* pOutput);
private:
/*
* Definition of a "SaveArray" entry.
*/
typedef struct SaveArrayEntry {
unsigned short textBlock; // Text Block number
unsigned short offset; // add to offset of text block
unsigned short attributes; // 0=normal text, 1=page break para
unsigned short rulerNum; // number of ruler for this para
unsigned short pixelHeight; // height of para in pixels
unsigned short numLines; // number of lines in this para
} SaveArrayEntry;
/*
* Every document has three chunks: header, footer, main document. Each
* has the same general structure.
*/
typedef struct Chunk {
const unsigned char* saveArray;
const unsigned char* rulers;
const unsigned char* textBlocks;
unsigned short saveArrayCount;
unsigned short numRulers;
unsigned short numTextBlocks;
} Chunk;
enum {
kExpectedVersion1 = 0x1011, // 1.0v2 and 1.1
kExpectedVersion2 = 0x0006, // 1.0? beta?
kExpectedIntVersion = 0x0002, // internal version number
kDocHeaderLen = 282,
kWPGlobalsLen = 386,
kMinExpectedLen = kWPGlobalsLen + kDocHeaderLen + 2 +1,
kSaveArrayEntryLen = 12,
kRulerEntryLen = 52,
kMinTextBlockSize = 4, // two counts
};
/* AWGS ruler "statusBits" values */
enum {
kAWGSJustifyFull = 0x80,
kAWGSJustifyRight = 0x40,
kAWGSJustifyCenter = 0x20,
kAWGSJustifyLeft = 0x10,
kAWGSNoBreakPara = 0x08, // para does not span pages
kAWGSTripleSpace = 0x04, // really double
kAWGSDoubleSpace = 0x02, // really 1.5x
kAWGSSingleSpace = 0x01
};
bool ReadChunk(const unsigned char** pSrcBuf, long* pSrcLen,
Chunk* pChunk);
void PrintChunk(const Chunk* pChunk);
const unsigned char* FindTextBlock(const Chunk* pChunk, int blockNum);
int PrintParagraph(const unsigned char* ptr, long maxLen);
unsigned short GetNumRulers(const unsigned char* pSaveArray,
unsigned short saveArrayCount);
unsigned short GetNumTextBlocks(const unsigned char* pSaveArray,
unsigned short saveArrayCount);
void UnpackSaveArrayEntry(const unsigned char* pSaveArray,
SaveArrayEntry* pSAE);
bool SkipTextBlocks(const unsigned char** pSrcBuf,
long* pSrcLen, int blockCount);
};
#endif /*__LR_AWGS__*/