uuUndo/DSUserProcs.c

/******************************************************************************
**
**  Project Name:	DropShell
**     File Name:	DSUserProcs.c
**
**   Description:	Specific AppleEvent handlers used by the DropBox
**
*******************************************************************************
**                       A U T H O R   I D E N T I T Y
*******************************************************************************
**
**	Initials	Name
**	--------	-----------------------------------------------
**	LDR			Leonard Rosenthol
**	MTC			Marshall Clow
**	SCS			Stephan Somogyi
**
*******************************************************************************
**                      R E V I S I O N   H I S T O R Y
*******************************************************************************
**
**	  Date		Time	Author	Description
**	--------	-----	------	---------------------------------------------
**	01/25/92			LDR		Removed the use of const on the userDataHandle
**	12/09/91			LDR		Added the new SelectFile userProc
**								Added the new Install & DisposeUserGlobals procs
**								Modified PostFlight to only autoquit on odoc, not pdoc
**	11/24/91			LDR		Added the userProcs for pdoc handler
**								Cleaned up the placement of braces
**								Added the passing of a userDataHandle
**	10/29/91			SCS		Changes for THINK C 5
**	10/28/91			LDR		Officially renamed DropShell (from QuickShell)
**								Added a bunch of comments for clarification
**	10/06/91	00:02	MTC		Converted to MPW C
**	04/09/91	00:02	LDR		Added to Projector
**
******************************************************************************/

#include "DSGlobals.h"
#include "DSUserProcs.h"
#include "DSDialogs.h"

#include "DSUtilsASG.h"

#include <Folders.h>
#include <GestaltEqu.h>
#include <ImageCompression.h>
#include <ctype.h>
#include <string.h>
#include <stdio.h>

//==================================================================================================================================
//	Globals
//==================================================================================================================================

typedef struct odocQueue {
	struct odocQueue *next;
	FSSpec spec;
	Handle data;
} odocQueue, *odocQueuePtr;

enum {
	cacheData = 0x10,
	dontCache = 0x20
};

static Boolean gAborted = false;

static char *gInputBuffer = nil, *gOutputBuffer = nil;
static char *gInputBufferBase = nil, *gOutputBufferBase = nil;
static char *gInputBufferPtr = nil, *gOutputBufferPtr = nil;

static ParamBlockRec gInputPB1, gInputPB2;
static ParamBlockRec gOutputPB1, gOutputPB2;
static HParamBlockRec gCloseOutputPB;
static HParamBlockRec gOpenOutputPB;
static HParamBlockRec gDeleteInputPB;

static short gInputRefNum = 0, gOutputRefNum = 0;

static Size gInputBufferLeft = 0, gOutputBufferCount = 0;
static Size gTotalSize = 0, gBytesRead = 0, gLinesProcessed = 0;

static Boolean gLastInputBuffer = false, gFoundEndCode = false;
static odocQueuePtr godocQueue = nil;


static IOCompletionUPP gGenericCompletion = nil;

Boolean gProcessing = false, gHasCQD = false;

enum {
	kInputBufferSize = 32L * 1024L,
	kOutputBufferSize = 32L * 1024L,

	kExtensionMapType = 'E2Ty',
	kExtensionMapID = 0
};

static OSErr OpenInputFile(FSSpecPtr theSpec);
static OSErr FillInputBuffer(void);
static OSErr CloseInputFile(FSSpecPtr theSpec);
static char *GetNextInputLine(Size *length, Boolean *badUU);
static char *GetNextUUInputLine(void);
static OSErr OpenOutputFile(FSSpecPtr inSpec, FSSpecPtr outSpec, char *outName);
static OSErr CreateOutputFile(FSSpecPtr outSpec, char *outName, OSType creator, OSType type);
static void MapOutputExtension(char *outname, OSType *creator, OSType *type);
static OSErr FlushOutputBuffer(void);
static OSErr CloseOutputFile(FSSpecPtr theSpec);
static OSErr DecodeUULine(char *line);
static void AddToQueue(FSSpec *theSpec, Handle userData);
static void ProcessQueue(void);
static void DisableMenus(void);
static void EnableMenus(void);

#if defined(powerc) || defined(__powerc)
static pascal void GenericCompletion(ParmBlkPtr paramBlock);
#else
s