* postscript.c

/*
* postscript.c
* Copyright (C) 1999-2005 A.J. van Os; Released under GNU GPL
*
* Description:
* Functions to deal with the PostScript format
*
*================================================================
* The function vImagePrologue is based on:
* jpeg2ps - convert JPEG compressed images to PostScript Level 2
* Copyright (C) 1994-99 Thomas Merz ([email protected])
*================================================================
* The credit should go to him, but all the bugs are mine.
*/

#include <stdlib.h>
#include <errno.h>
#include <time.h>
#include <string.h>
#include "version.h"
#include "antiword.h"

/* The character set */
static encoding_type eEncoding = encoding_neutral;
/* The image level */
static image_level_enum eImageLevel = level_default;
/* The output must use landscape orientation */
static BOOL bUseLandscape = FALSE;
/* The height and width of a PostScript page (in DrawUnits) */
static long lPageHeight = LONG_MAX;
static long lPageWidth = LONG_MAX;
/* The height of the footer on the current page (in DrawUnits) */
static long lFooterHeight = 0;
/* Inside a footer (to prevent an infinite loop when the footer is too big) */
static BOOL bInFtrSpace = FALSE;
/* Current time for a PS header */
static const char *szCreationDate = NULL;
/* Current creator for a PS header */
static const char *szCreator = NULL;
/* Current font information */
static drawfile_fontref tFontRefCurr = (drawfile_fontref)-1;
static USHORT usFontSizeCurr = 0;
static int iFontColorCurr = -1;
/* Current vertical position information */
static long lYtopCurr = -1;
/* PostScript page counter */
static int iPageCount = 0;
/* Image counter */
static int iImageCount = 0;
/* Section index */
static int iSectionIndex = 0;
/* Are we on the first page of the section? */
static BOOL bFirstInSection = TRUE;

static void vMoveTo(diagram_type *, long);

static const char *iso_8859_1_data[] = {
"/newcodes % ISO-8859-1 character encodings",
"[",
"140/ellipsis 141/trademark 142/perthousand 143/bullet",
"144/quoteleft 145/quoteright 146/guilsinglleft 147/guilsinglright",
"148/quotedblleft 149/quotedblright 150/quotedblbase 151/endash 152/emdash",
"153/minus 154/OE 155/oe 156/dagger 157/daggerdbl 158/fi 159/fl",
"160/space 161/exclamdown 162/cent 163/sterling 164/currency",
"165/yen 166/brokenbar 167/section 168/dieresis 169/copyright",
"170/ordfeminine 171/guillemotleft 172/logicalnot 173/hyphen 174/registered",
"175/macron 176/degree 177/plusminus 178/twosuperior 179/threesuperior",
"180/acute 181/mu 182/paragraph 183/periodcentered 184/cedilla",
"185/onesuperior 186/ordmasculine 187/guillemotright 188/onequarter",
"189/onehalf 190/threequarters 191/questiondown 192/Agrave 193/Aacute",
"194/Acircumflex 195/Atilde 196/Adieresis 197/Aring 198/AE 199/Ccedilla",
"200/Egrave 201/Eacute 202/Ecircumflex 203/Edieresis 204/Igrave 205/Iacute",
"206/Icircumflex 207/Idieresis 208/Eth 209/Ntilde 210/Ograve 211/Oacute",
"212/Ocircumflex 213/Otilde 214/Odieresis 215/multiply 216/Oslash",
"217/Ugrave 218/Uacute 219/Ucircumflex 220/Udieresis 221/Yacute 222/Thorn",
"223/germandbls 224/agrave 225/aacute 226/acircumflex 227/atilde",
"228/adieresis 229/aring 230/ae 231/ccedilla 232/egrave 233/eacute",
"234/ecircumflex 235/edieresis 236/igrave 237/iacute 238/icircumflex",
"239/idieresis 240/eth 241/ntilde 242/ograve 243/oacute 244/ocircumflex",
"245/otilde 246/odieresis 247/divide 248/oslash 249/ugrave 250/uacute",
"251/ucircumflex 252/udieresis 253/yacute 254/thorn 255/ydieresis",
"] bind def",
"",
"/reencdict 12 dict def",
"",
};

static const char *iso_8859_2_data[] = {
"/newcodes % ISO-8859-2 character encodings",
"[",
"160/space 161/Aogonek 162/breve 163/Lslash 164/currency 165/Lcaron",
"166/Sacute 167/section 168/dieresis 169/Scaron 170/Scommaaccent",
"171/Tcaron 172/Zacute 173/hyphen 174/Zcaron 175/Zdotaccent 176/degree",
"177/aogonek 178/ogonek 179/lslash 180/acute 181/lcaron 182/sacute",
"183/caron 184/cedilla 185/scaron 186/scommaaccent 187/tcaron",
"188/zacute 189/hungarumlaut 190/zcaron 191/zdotaccent 192/Racute",
"193/Aacute 194/Acircumflex 195/Abreve 196/Adieresis 197/Lacute",
"198/Cacute 199/Ccedilla 200/Ccaron 201/Eacute 202/Eogonek",
"203/Edieresis 204/Ecaron 205/Iacute 206/Icircumflex 207/Dcaron",
"208/Dcroat 209/Nacute 210/Ncaron 211/Oacute 212/Ocircumflex",
"213/Ohungarumlaut 214/Odieresis 215/multiply 216/Rcaron 217/Uring",
"218/Uacute 219/Uhungarumlaut 220/Udieresis 221/Yacute 222/Tcommaaccent",
"223/germandbls 224/racute 225/aacute 226/acircumflex 227/abreve",
"228/adieresis 229/lacute 230/cacute 231/ccedilla 232/ccaron 233/eacute",
"234/eogonek 235/edieresis 236/ecaron 237/iacute 238/icircumflex",
"239/dcaron 240/dcroat 241/nacute 242/ncaron 243/oacute 244/ocircumflex",
"245/ohungarumlaut 246/odieresis 247/divide 248/rcaron 249/uring",
"250/uacute 251/uhungarumlaut 252/udieresis 253/yacute 254/tcommaaccent",
"255/dotaccent",
"] bind def",
"",
"/reencdict 12 dict def",
"",
};

static const char *iso_8859_5_data[] = {
"/newcodes % ISO-8859-5 character encodings",
"[",
"160/space 161/afii10023 162/afii10051 163/afii10052 164/afii10053",
"165/afii10054 166/afii10055 167/afii10056 168/afii10057 169/afii10058",
"170/afii10059 171/afii10060 172/afii10061 173/hyphen 174/afii10062",
"175/afii10145 176/afii10017 177/afii10018 178/afii10019 179/afii10020",
"180/afii10021 181/afii10022 182/afii10024 183/afii10025 184/afii10026",
"185/afii10027 186/afii10028 187/afii10029 188/afii10030 189/afii10031",
"190/afii10032 191/afii10033 192/afii10034 193/afii10035 194/afii10036",
"195/afii10037 196/afii10038 197/afii10039 198/afii10040 199/afii10041",
"200/afii10042 201/afii10043 202/afii10044 203/afii10045 204/afii10046",
"205/afii10047 206/afii10048 207/afii10049 208/afii10065 209/afii10066",
"210/afii10067 211/afii10068 212/afii10069 213/afii10070 214/afii10072",
"215/afii10073 216/afii10074 217/afii10075 218/afii10076 219/afii10077",
"220/afii10078 221/afii10079 222/afii10080 223/afii10081 224/afii10082",
"225/afii10083 226/afii10084 227/afii10085 228/afii10086 229/afii10087",
"230/afii10088 231/afii10089 232/afii10090 233/afii10091 234/afii10092",
"235/afii10093 236/afii10094 237/afii10095 238/afii10096 239/afii10097",
"240/afii61352 241/afii10071 242/afii10099 243/afii10100 244/afii10101",
"245/afii10102 246/afii10103 247/afii10104 248/afii10105 249/afii10106",
"250/afii10107 251/afii10108 252/afii10109 253/section 254/afii10110",
"255/afii10193",
"] bind def",
"",
"/reencdict 12 dict def",
"",
};

static const char *iso_8859_x_func[] = {
"% change fonts using ISO-8859-x characters",
"/ChgFnt % size psname natname => font",
"{",
" dup FontDirectory exch known % is re-encoded name known?",
" { exch pop } % yes, get rid of long name",
" { dup 3 1 roll ReEncode } ifelse % no, re-encode it",
" findfont exch scalefont setfont",
"} bind def",
"",
"/ReEncode",
"{",
"reencdict begin",
" /newname exch def",
" /basename exch def",
" /basedict basename findfont def",
" /newfont basedict maxlength dict def",
" basedict",
" { exch dup /FID ne",
" { dup /Encoding eq",
" { exch dup length array copy newfont 3 1 roll put }",
" { exch newfont 3 1 roll put } ifelse",
" }",
" { pop pop } ifelse",
" } forall",
" newfont /FontName newname put",
" newcodes aload pop newcodes length 2 idiv",
" { newfont /Encoding get 3 1 roll put } repeat",
" newname newfont definefont pop",
"end",
"} bind def",
"",
};

static const char *misc_func[] = {
"% draw a line and show the string",
"/LineShow % string linewidth movement",
"{",
" gsave",
" 0 exch rmoveto",
" setlinewidth",
" dup",
" stringwidth pop",
" 0 rlineto stroke",
" grestore",
" show",
"} bind def",
"",
"% begin an EPS file (level 2 and up)",
"/BeginEPSF",
"{",
" /b4_Inc_state save def",
" /dict_count countdictstack def",
" /op_count count 1 sub def",
" userdict begin",
" /showpage { } def",
" 0 setgray 0 setlinecap",
" 1 setlinewidth 0 setlinejoin",
" 10 setmiterlimit [ ] 0 setdash newpath",
" false setstrokeadjust false setoverprint",
"} bind def",
"",
"% end an EPS file",
"/EndEPSF {",
" count op_count sub { pop } repeat",
" countdictstack dict_count sub { end } repeat",
" b4_Inc_state restore",
"} bind def",
"",
};

/*
* vAddPageSetup - add the page setup
*/
static void
vAddPageSetup(FILE *pOutFile)
{
if (bUseLandscape) {
fprintf(pOutFile, "%%%%BeginPageSetup\n");
fprintf(pOutFile, "90 rotate\n");
fprintf(pOutFile, "0.00 %.2f translate\n",
-dDrawUnits2Points(lPageHeight));
fprintf(pOutFile, "%%%%EndPageSetup\n");
}
} /* end of vAddPageSetup */

/*
* vAddHdrFtr - add a header or footer
*/
static void
vAddHdrFtr(diagram_type *pDiag, const hdrftr_block_type *pHdrFtrInfo)
{
output_type *pStart, *pPrev, *pNext;

fail(pDiag == NULL);
fail(pHdrFtrInfo == NULL);

vStartOfParagraphPS(pDiag, 0);
pStart = pHdrFtrInfo->pText;
while (pStart != NULL) {
pNext = pStart;
while (pNext != NULL &&
(pNext->tNextFree != 1 ||
(pNext->szStorage[0] != PAR_END &&
pNext->szStorage[0] != HARD_RETURN))) {
pNext = pNext->pNext;
}
if (pNext == NULL) {
if (bOutputContainsText(pStart)) {
vAlign2Window(pDiag, pStart,
lChar2MilliPoints(DEFAULT_SCREEN_WIDTH),
ALIGNMENT_LEFT);
} else {
vMove2NextLinePS(pDiag, pStart->usFontSize);
}
break;
}
fail(pNext->tNextFree != 1);
fail(pNext->szStorage[0] != PAR_END &&
pNext->szStorage[0] != HARD_RETURN);

if (pStart != pNext) {
/* There is something to print */
pPrev = pNext->pPrev;
fail(pPrev->pNext != pNext);
/* Cut the chain */
pPrev->pNext = NULL;
if (bOutputContainsText(pStart)) {
/* Print it */
vAlign2Window(pDiag, pStart,
lChar2MilliPoints(DEFAULT_SCREEN_WIDTH),
ALIGNMENT_LEFT);
} else {
/* Just an empty line */
vMove2NextLinePS(pDiag, pStart->usFontSize);
}
/* Repair the chain */
pPrev->pNext = pNext;
}
if (pNext->szStorage[0] == PAR_END) {
vEndOfParagraphPS(pDiag, pNext->usFontSize,
(long)pNext->usFontSize * 200);
}
pStart = pNext->pNext;
}
} /* end of vAddHdrFtr */

/*
* vAddHeader - add a page header
*/
static void
vAddHeader(diagram_type *pDiag)
{
const hdrftr_block_type *pHdrInfo;
const hdrftr_block_type *pFtrInfo;

fail(pDiag == NULL);

NO_DBG_MSG("vAddHeader");

pHdrInfo = pGetHdrFtrInfo(iSectionIndex, TRUE,
odd(iPageCount), bFirstInSection);
pFtrInfo = pGetHdrFtrInfo(iSectionIndex, FALSE,
odd(iPageCount), bFirstInSection);
/* Set the height of the footer of this page */
lFooterHeight = pFtrInfo == NULL ? 0 : pFtrInfo->lHeight;
fail(lFooterHeight < 0);

if (pHdrInfo == NULL ||
pHdrInfo->pText == NULL ||
pHdrInfo->lHeight <= 0) {
fail(pHdrInfo != NULL && pHdrInfo->lHeight < 0);
fail(pHdrInfo != NULL &&
pHdrInfo->pText != NULL &&
pHdrInfo->lHeight == 0);
return;
}

vAddHdrFtr(pDiag, pHdrInfo);

DBG_DEC_C(pHdrInfo->lHeight !=
lPageHeight - PS_TOP_MARGIN - pDiag->lYtop,
pHdrInfo->lHeight);
DBG_DEC_C(pHdrInfo->lHeight !=
lPageHeight - PS_TOP_MARGIN - pDiag->lYtop,
lPageHeight - PS_TOP_MARGIN - pDiag->lYtop);

#if 0 /* defined(DEBUG) */
fprintf(pDiag->pOutFile,
"(HEADER: FileOffset 0x%04lx-0x%04lx; Height %ld-%ld) show\n",
ulCharPos2FileOffset(pHdrInfo->ulCharPosStart),
ulCharPos2FileOffset(pHdrInfo->ulCharPosNext),
pHdrInfo->lHeight,
lPageHeight - PS_TOP_MARGIN - pDiag->lYtop);
#endif
} /* end of vAddHeader */

/*
* vAddFooter - add a page footer
*/
static void
vAddFooter(diagram_type *pDiag)
{
const hdrftr_block_type *pFtrInfo;

fail(pDiag == NULL);

NO_DBG_MSG("vAddFooter");
pFtrInfo = pGetHdrFtrInfo(iSectionIndex, FALSE,
odd(iPageCount), bFirstInSection);
bFirstInSection = FALSE;
if (pFtrInfo == NULL ||
pFtrInfo->pText == NULL ||
pFtrInfo->lHeight <= 0) {
fail(pFtrInfo != NULL && pFtrInfo->lHeight < 0);
fail(pFtrInfo != NULL &&
pFtrInfo->pText != NULL &&
pFtrInfo->lHeight == 0);
return;
}

bInFtrSpace = TRUE;

DBG_DEC_C(pFtrInfo->lHeight != lFooterHeight, pFtrInfo->lHeight);
DBG_DEC_C(pFtrInfo->lHeight != lFooterHeight, lFooterHeight);
DBG_DEC_C(pDiag->lYtop < lFooterHeight + PS_BOTTOM_MARGIN,
pDiag->lYtop);
DBG_DEC_C(pDiag->lYtop < lFooterHeight + PS_BOTTOM_MARGIN,
lFooterHeight + PS_BOTTOM_MARGIN);

if (pDiag->lYtop > lFooterHeight + PS_BOTTOM_MARGIN) {
/* Move down to the start of the footer */
pDiag->lYtop = lFooterHeight + PS_BOTTOM_MARGIN;
vMoveTo(pDiag, 0);
} else if (pDiag->lYtop < lFooterHeight + PS_BOTTOM_MARGIN / 2) {
DBG_FIXME();
/*
* Move up to the start of the footer, to prevent moving
* of the bottom edge of the paper
*/
pDiag->lYtop = lFooterHeight + PS_BOTTOM_MARGIN;
vMoveTo(pDiag, 0);
}

DBG_FLT_C(pDiag->lYtop < lFooterHeight + PS_BOTTOM_MARGIN,
dDrawUnits2Points(lFooterHeight + PS_BOTTOM_MARGIN - pDiag->lYtop));

#if 0 /* defined(DEBUG) */
fprintf(pDiag->pOutFile,
"(FOOTER: FileOffset 0x%04lx-0x%04lx; Bottom %ld-%ld) show\n",
ulCharPos2FileOffset(pFtrInfo->ulCharPosStart),
ulCharPos2FileOffset(pFtrInfo->ulCharPosNext),
pDiag->lYtop,
pFtrInfo->lHeight + PS_BOTTOM_MARGIN);
#endif
vAddHdrFtr(pDiag, pFtrInfo);
bInFtrSpace = FALSE;
} /* end of vAddFooter */

/*
* vMove2NextPage - move to the start of the next page
*/
static void
vMove2NextPage(diagram_type *pDiag, BOOL bNewSection)
{
fail(pDiag == NULL);

vAddFooter(pDiag);
fprintf(pDiag->pOutFile, "showpage\n");
iPageCount++;
fprintf(pDiag->pOutFile, "%%%%Page: %d %d\n", iPageCount, iPageCount);
if (bNewSection) {
iSectionIndex++;
bFirstInSection = TRUE;
}
vAddPageSetup(pDiag->pOutFile);
pDiag->lYtop = lPageHeight - PS_TOP_MARGIN;
lYtopCurr = -1;
vAddHeader(pDiag);
} /* end of vMove2NextPage */

/*
* vMoveTo - move to the specified X,Y coordinates
*
* Move the current position of the specified diagram to its X,Y coordinates,
* start on a new page if needed
*/
static void
vMoveTo(diagram_type *pDiag, long lLastVerticalMovement)
{
fail(pDiag == NULL);
fail(pDiag->pOutFile == NULL);

if (pDiag->lYtop <= lFooterHeight + PS_BOTTOM_MARGIN && !bInFtrSpace) {
vMove2NextPage(pDiag, FALSE);
/* Repeat the last vertical movement on the new page */
pDiag->lYtop -= lLastVerticalMovement;
}

fail(pDiag->lYtop < lFooterHeight + PS_BOTTOM_MARGIN && !bInFtrSpace);
DBG_DEC_C(pDiag->lYtop < PS_BOTTOM_MARGIN, pDiag->lYtop);
fail(pDiag->lYtop < PS_BOTTOM_MARGIN / 3);

if (pDiag->lYtop != lYtopCurr) {
fprintf(pDiag->pOutFile, "%.2f %.2f moveto\n",
dDrawUnits2Points(pDiag->lXleft + PS_LEFT_MARGIN),
dDrawUnits2Points(pDiag->lYtop));
lYtopCurr = pDiag->lYtop;
}
} /* end of vMoveTo */

/*
* vProloguePS - set options and perform the PostScript initialization
*/
void
vProloguePS(diagram_type *pDiag,
const char *szTask, const char *szFilename,
const options_type *pOptions)
{
FILE *pOutFile;
const char *szTmp;
time_t tTime;

fail(pDiag == NULL);
fail(pDiag->pOutFile == NULL);
fail(szTask == NULL || szTask[0] == '\0');
fail(pOptions == NULL);

pOutFile = pDiag->pOutFile;

bUseLandscape = pOptions->bUseLandscape;
eEncoding = pOptions->eEncoding;
eImageLevel = pOptions->eImageLevel;

if (pOptions->iPageHeight == INT_MAX) {
lPageHeight = LONG_MAX;
} else {
lPageHeight = lPoints2DrawUnits(pOptions->iPageHeight);
}
DBG_DEC(lPageHeight);
if (pOptions->iPageWidth == INT_MAX) {
lPageWidth = LONG_MAX;
} else {
lPageWidth = lPoints2DrawUnits(pOptions->iPageWidth);
}
DBG_DEC(lPageWidth);
lFooterHeight = 0;
bInFtrSpace = FALSE;

tFontRefCurr = (drawfile_fontref)-1;
usFontSizeCurr = 0;
iFontColorCurr = -1;
lYtopCurr = -1;
iPageCount = 0;
iImageCount = 0;
iSectionIndex = 0;
bFirstInSection = TRUE;
pDiag->lXleft = 0;
pDiag->lYtop = lPageHeight - PS_TOP_MARGIN;

szCreator = szTask;

fprintf(pOutFile, "%%!PS-Adobe-2.0\n");
fprintf(pOutFile, "%%%%Title: %s\n", szBasename(szFilename));
fprintf(pOutFile, "%%%%Creator: %s %s\n", szCreator, VERSIONSTRING);
szTmp = getenv("LOGNAME");
if (szTmp == NULL || szTmp[0] == '\0') {
szTmp = getenv("USER");
if (szTmp == NULL || szTmp[0] == '\0') {
szTmp = "unknown";
}
}
fprintf(pOutFile, "%%%%For: %.50s\n", szTmp);
errno = 0;
tTime = time(NULL);
if (tTime == (time_t)-1 && errno != 0) {
szCreationDate = NULL;
} else {
szCreationDate = ctime(&tTime);
}
if (szCreationDate == NULL || szCreationDate[0] == '\0') {
szCreationDate = "unknown\n";
}
fprintf(pOutFile, "%%%%CreationDate: %s", szCreationDate);
if (bUseLandscape) {
fprintf(pOutFile, "%%%%Orientation: Landscape\n");
fprintf(pOutFile, "%%%%BoundingBox: 0 0 %.0f %.0f\n",
dDrawUnits2Points(lPageHeight),
dDrawUnits2Points(lPageWidth));
} else {
fprintf(pOutFile, "%%%%Orientation: Portrait\n");
fprintf(pOutFile, "%%%%BoundingBox: 0 0 %.0f %.0f\n",
dDrawUnits2Points(lPageWidth),
dDrawUnits2Points(lPageHeight));
}
} /* end of vProloguePS */

/*
* vEpiloguePS - clean up after everything is done
*/
void
vEpiloguePS(diagram_type *pDiag)
{
fail(pDiag == NULL);
fail(pDiag->pOutFile == NULL);

if (pDiag->lYtop < lPageHeight - PS_TOP_MARGIN) {
vAddFooter(pDiag);
fprintf(pDiag->pOutFile, "showpage\n");
}
fprintf(pDiag->pOutFile, "%%%%Trailer\n");
fprintf(pDiag->pOutFile, "%%%%Pages: %d\n", iPageCount);
fprintf(pDiag->pOutFile, "%%%%EOF\n");
szCreationDate = NULL;
szCreator = NULL;
} /* end of vEpiloguePS */

/*
* vPrintPalette - print a postscript palette
*/
static void
vPrintPalette(FILE *pOutFile, const imagedata_type *pImg)
{
int iIndex;

fail(pOutFile == NULL);
fail(pImg == NULL);
fail(pImg->iColorsUsed < 2);
fail(pImg->iColorsUsed > 256);

fprintf(pOutFile, "[ /Indexed\n");
fprintf(pOutFile, "\t/Device%s %d\n",
pImg->bColorImage ? "RGB" : "Gray", pImg->iColorsUsed - 1);
fprintf(pOutFile, "<");
for (iIndex = 0; iIndex < pImg->iColorsUsed; iIndex++) {
fprintf(pOutFile, "%02x",
(unsigned int)pImg->aucPalette[iIndex][0]);
if (pImg->bColorImage) {
fprintf(pOutFile, "%02x%02x",
(unsigned int)pImg->aucPalette[iIndex][1],
(unsigned int)pImg->aucPalette[iIndex][2]);
}
if (iIndex % 8 == 7) {
fprintf(pOutFile, "\n");
} else {
fprintf(pOutFile, " ");
}
}
fprintf(pOutFile, ">\n");
fprintf(pOutFile, "] setcolorspace\n");
} /* end of vPrintPalette */

/*
* vImageProloguePS - perform the Encapsulated PostScript initialization
*/
void
vImageProloguePS(diagram_type *pDiag, const imagedata_type *pImg)
{
FILE *pOutFile;

fail(pDiag == NULL);
fail(pDiag->pOutFile == NULL);
fail(pImg == NULL);

if (pImg->iVerSizeScaled <= 0 || pImg->iHorSizeScaled <= 0) {
return;
}

fail(szCreationDate == NULL);
fail(szCreator == NULL);
fail(eImageLevel == level_no_images);

iImageCount++;

DBG_DEC_C(pDiag->lXleft != 0, pDiag->lXleft);

pDiag->lYtop -= lPoints2DrawUnits(pImg->iVerSizeScaled);
vMoveTo(pDiag, lPoints2DrawUnits(pImg->iVerSizeScaled));

pOutFile = pDiag->pOutFile;

fprintf(pOutFile, "BeginEPSF\n");
fprintf(pOutFile, "%%%%BeginDocument: image%03d.eps\n", iImageCount);
fprintf(pOutFile, "%%!PS-Adobe-2.0 EPSF-2.0\n");
fprintf(pOutFile, "%%%%Creator: %s %s\n", szCreator, VERSIONSTRING);
fprintf(pOutFile, "%%%%Title: Image %03d\n", iImageCount);
fprintf(pOutFile, "%%%%CreationDate: %s", szCreationDate);
fprintf(pOutFile, "%%%%BoundingBox: 0 0 %d %d\n",
pImg->iHorSizeScaled, pImg->iVerSizeScaled);
fprintf(pOutFile, "%%%%DocumentData: Clean7Bit\n");
fprintf(pOutFile, "%%%%LanguageLevel: 2\n");
fprintf(pOutFile, "%%%%EndComments\n");
fprintf(pOutFile, "%%%%BeginProlog\n");
fprintf(pOutFile, "%%%%EndProlog\n");
fprintf(pOutFile, "%%%%Page: 1 1\n");

fprintf(pOutFile, "save\n");

switch (pImg->eImageType) {
case imagetype_is_jpeg:
fprintf(pOutFile, "/Data1 currentfile ");
fprintf(pOutFile, "/ASCII85Decode filter def\n");
fprintf(pOutFile, "/Data Data1 << ");
fprintf(pOutFile, ">> /DCTDecode filter def\n");
switch (pImg->iComponents) {
case 1:
fprintf(pOutFile, "/DeviceGray setcolorspace\n");
break;
case 3:
fprintf(pOutFile, "/DeviceRGB setcolorspace\n");
break;
case 4:
fprintf(pOutFile, "/DeviceCMYK setcolorspace\n");
break;
default:
DBG_DEC(pImg->iComponents);
break;
}
break;
case imagetype_is_png:
if (eImageLevel == level_gs_special) {
fprintf(pOutFile,
"/Data2 currentfile /ASCII85Decode filter def\n");
fprintf(pOutFile,
"/Data1 Data2 << >> /FlateDecode filter def\n");
fprintf(pOutFile, "/Data Data1 <<\n");
fprintf(pOutFile, "\t/Colors %d\n", pImg->iComponents);
fprintf(pOutFile, "\t/BitsPerComponent %u\n",
pImg->uiBitsPerComponent);
fprintf(pOutFile, "\t/Columns %d\n", pImg->iWidth);
fprintf(pOutFile,
">> /PNGPredictorDecode filter def\n");
} else {
fprintf(pOutFile,
"/Data1 currentfile /ASCII85Decode filter def\n");
fprintf(pOutFile,
"/Data Data1 << >> /FlateDecode filter def\n");
}
if (pImg->iComponents == 3 || pImg->iComponents == 4) {
fprintf(pOutFile, "/DeviceRGB setcolorspace\n");
} else if (pImg->iColorsUsed > 0) {
vPrintPalette(pOutFile, pImg);
} else {
fprintf(pOutFile, "/DeviceGray setcolorspace\n");
}
break;
case imagetype_is_dib:
fprintf(pOutFile, "/Data currentfile ");
fprintf(pOutFile, "/ASCII85Decode filter def\n");
if (pImg->uiBitsPerComponent <= 8) {
vPrintPalette(pOutFile, pImg);
} else {
fprintf(pOutFile, "/DeviceRGB setcolorspace\n");
}
break;
default:
fprintf(pOutFile, "/Data currentfile ");
fprintf(pOutFile, "/ASCIIHexDecode filter def\n");
fprintf(pOutFile, "/Device%s setcolorspace\n",
pImg->bColorImage ? "RGB" : "Gray");
break;
}

/* Translate to lower left corner of image */
fprintf(pOutFile, "%.2f %.2f translate\n",
dDrawUnits2Points(pDiag->lXleft + PS_LEFT_MARGIN),
dDrawUnits2Points(pDiag->lYtop));

fprintf(pOutFile, "%d %d scale\n",
pImg->iHorSizeScaled, pImg->iVerSizeScaled);

fprintf(pOutFile, "{ <<\n");
fprintf(pOutFile, "\t/ImageType 1\n");
fprintf(pOutFile, "\t/Width %d\n", pImg->iWidth);
fprintf(pOutFile, "\t/Height %d\n", pImg->iHeight);
if (pImg->eImageType == imagetype_is_dib) {
/* Scanning from left to right and bottom to top */
fprintf(pOutFile, "\t/ImageMatrix [ %d 0 0 %d 0 0 ]\n",
pImg->iWidth, pImg->iHeight);
} else {
/* Scanning from left to right and top to bottom */
fprintf(pOutFile, "\t/ImageMatrix [ %d 0 0 %d 0 %d ]\n",
pImg->iWidth, -pImg->iHeight, pImg->iHeight);
}
fprintf(pOutFile, "\t/DataSource Data\n");

switch (pImg->eImageType) {
case imagetype_is_jpeg:
fprintf(pOutFile, "\t/BitsPerComponent 8\n");
switch (pImg->iComponents) {
case 1:
fprintf(pOutFile, "\t/Decode [0 1]\n");
break;
case 3:
fprintf(pOutFile, "\t/Decode [0 1 0 1 0 1]\n");
break;
case 4:
if (pImg->bAdobe) {
/*
* Adobe-conforming CMYK file
* applying workaround for color inversion
*/
fprintf(pOutFile,
"\t/Decode [1 0 1 0 1 0 1 0]\n");
} else {
fprintf(pOutFile,
"\t/Decode [0 1 0 1 0 1 0 1]\n");
}
break;
default:
DBG_DEC(pImg->iComponents);
break;
}
break;
case imagetype_is_png:
if (pImg->iComponents == 3) {
fprintf(pOutFile, "\t/BitsPerComponent 8\n");
fprintf(pOutFile, "\t/Decode [0 1 0 1 0 1]\n");
} else if (pImg->iColorsUsed > 0) {
fail(pImg->uiBitsPerComponent > 8);
fprintf(pOutFile, "\t/BitsPerComponent %u\n",
pImg->uiBitsPerComponent);
fprintf(pOutFile, "\t/Decode [0 %d]\n",
(1 << pImg->uiBitsPerComponent) - 1);
} else {
fprintf(pOutFile, "\t/BitsPerComponent 8\n");
fprintf(pOutFile, "\t/Decode [0 1]\n");
}
break;
case imagetype_is_dib:
fprintf(pOutFile, "\t/BitsPerComponent 8\n");
if (pImg->uiBitsPerComponent <= 8) {
fprintf(pOutFile, "\t/Decode [0 255]\n");
} else {
fprintf(pOutFile, "\t/Decode [0 1 0 1 0 1]\n");
}
break;
default:
fprintf(pOutFile, "\t/BitsPerComponent 8\n");
if (pImg->bColorImage) {
fprintf(pOutFile, "\t/Decode [0 1 0 1 0 1]\n");
} else {
fprintf(pOutFile, "\t/Decode [0 1]\n");
}
break;
}

fprintf(pOutFile, " >> image\n");
fprintf(pOutFile, " Data closefile\n");
fprintf(pOutFile, " showpage\n");
fprintf(pOutFile, " restore\n");
fprintf(pOutFile, "} exec\n");
} /* end of vImageProloguePS */

/*
* vImageEpiloguePS - clean up after Encapsulated PostScript
*/
void
vImageEpiloguePS(diagram_type *pDiag)
{
FILE *pOutFile;

fail(pDiag == NULL);
fail(pDiag->pOutFile == NULL);

pOutFile = pDiag->pOutFile;

fprintf(pOutFile, "%%%%EOF\n");
fprintf(pOutFile, "%%%%EndDocument\n");
fprintf(pOutFile, "EndEPSF\n");

pDiag->lXleft = 0;
} /* end of vImageEpiloguePS */

/*
* bAddDummyImagePS - add a dummy image
*
* return TRUE when successful, otherwise FALSE
*/
BOOL
bAddDummyImagePS(diagram_type *pDiag, const imagedata_type *pImg)
{
FILE *pOutFile;

fail(pDiag == NULL);
fail(pDiag->pOutFile == NULL);
fail(pImg == NULL);

if (pImg->iVerSizeScaled <= 0 || pImg->iHorSizeScaled <= 0) {
return FALSE;
}

iImageCount++;

DBG_DEC_C(pDiag->lXleft != 0, pDiag->lXleft);

pDiag->lYtop -= lPoints2DrawUnits(pImg->iVerSizeScaled);
vMoveTo(pDiag, lPoints2DrawUnits(pImg->iVerSizeScaled));

pOutFile = pDiag->pOutFile;

fprintf(pOutFile, "gsave %% Image %03d\n", iImageCount);
fprintf(pOutFile, "\tnewpath\n");
fprintf(pOutFile, "\t%.2f %.2f moveto\n",
dDrawUnits2Points(pDiag->lXleft + PS_LEFT_MARGIN),
dDrawUnits2Points(pDiag->lYtop));
fprintf(pOutFile, "\t1.0 setlinewidth\n");
fprintf(pOutFile, "\t0.3 setgray\n");
fprintf(pOutFile, "\t0 %d rlineto\n", pImg->iVerSizeScaled);
fprintf(pOutFile, "\t%d 0 rlineto\n", pImg->iHorSizeScaled);
fprintf(pOutFile, "\t0 %d rlineto\n", -pImg->iVerSizeScaled);
fprintf(pOutFile, "\tclosepath\n");
fprintf(pOutFile, "\tstroke\n");
fprintf(pOutFile, "grestore\n");

pDiag->lXleft = 0;

return TRUE;
} /* end of bAddDummyImagePS */

/*
* vAddFontsPS - add the list of fonts and complete the prologue
*/
void
vAddFontsPS(diagram_type *pDiag)
{
FILE *pOutFile;
const font_table_type *pTmp, *pTmp2;
size_t tIndex;
int iLineLen, iOurFontnameLen;
BOOL bFound;

fail(pDiag == NULL);
fail(pDiag->pOutFile == NULL);

pOutFile = pDiag->pOutFile;
iLineLen = fprintf(pOutFile, "%%%%DocumentFonts:");

if (tGetFontTableLength() == 0) {
iLineLen += fprintf(pOutFile, " Courier");
} else {
pTmp = NULL;
while ((pTmp = pGetNextFontTableRecord(pTmp)) != NULL) {
/* Print the document fonts */
bFound = FALSE;
pTmp2 = NULL;
while ((pTmp2 = pGetNextFontTableRecord(pTmp2))
!= NULL && pTmp2 < pTmp) {
bFound = STREQ(pTmp2->szOurFontname,
pTmp->szOurFontname);
if (bFound) {
break;
}
}
iOurFontnameLen = (int)strlen(pTmp->szOurFontname);
if (bFound || iOurFontnameLen <= 0) {
continue;
}
if (iLineLen + iOurFontnameLen > 76) {
fprintf(pOutFile, "\n%%%%+");
iLineLen = 3;
}
iLineLen += fprintf(pOutFile,
" %s", pTmp->szOurFontname);
}
}
fprintf(pOutFile, "\n");
fprintf(pOutFile, "%%%%Pages: (atend)\n");
fprintf(pOutFile, "%%%%EndComments\n");
fprintf(pOutFile, "%%%%BeginProlog\n");

switch (eEncoding) {
case encoding_latin_1:
for (tIndex = 0;
tIndex < elementsof(iso_8859_1_data);
tIndex++) {
fprintf(pOutFile, "%s\n", iso_8859_1_data[tIndex]);
}
fprintf(pOutFile, "\n");
for (tIndex = 0;
tIndex < elementsof(iso_8859_x_func);
tIndex++) {
fprintf(pOutFile, "%s\n", iso_8859_x_func[tIndex]);
}
break;
case encoding_latin_2:
for (tIndex = 0;
tIndex < elementsof(iso_8859_2_data);
tIndex++) {
fprintf(pOutFile, "%s\n", iso_8859_2_data[tIndex]);
}
fprintf(pOutFile, "\n");
for (tIndex = 0;
tIndex < elementsof(iso_8859_x_func);
tIndex++) {
fprintf(pOutFile, "%s\n", iso_8859_x_func[tIndex]);
}
break;
case encoding_cyrillic:
for (tIndex = 0;
tIndex < elementsof(iso_8859_5_data);
tIndex++) {
fprintf(pOutFile, "%s\n", iso_8859_5_data[tIndex]);
}
fprintf(pOutFile, "\n");
for (tIndex = 0;
tIndex < elementsof(iso_8859_x_func);
tIndex++) {
fprintf(pOutFile, "%s\n", iso_8859_x_func[tIndex]);
}
break;
case encoding_utf_8:
werr(1,
"The combination PostScript and UTF-8 is not supported");
break;
default:
DBG_DEC(eEncoding);
break;
}

/* The rest of the functions */
for (tIndex = 0; tIndex < elementsof(misc_func); tIndex++) {
fprintf(pOutFile, "%s\n", misc_func[tIndex]);
}
fprintf(pOutFile, "%%%%EndProlog\n");
iPageCount = 1;
fprintf(pDiag->pOutFile, "%%%%Page: %d %d\n", iPageCount, iPageCount);
vAddPageSetup(pDiag->pOutFile);
vAddHeader(pDiag);
} /* end of vAddFontsPS */

/*
* vPrintPS - print a PostScript string
*/
static void
vPrintPS(FILE *pFile, const char *szString, size_t tStringLength,
USHORT usFontstyle)
{
double dSuperscriptMove, dSubscriptMove;
const UCHAR *ucBytes;
size_t tCount;

fail(szString == NULL);

if (szString == NULL || szString[0] == '\0' || tStringLength == 0) {
return;
}
DBG_DEC_C(usFontSizeCurr < MIN_FONT_SIZE, usFontSizeCurr);

dSuperscriptMove = 0.0;
dSubscriptMove = 0.0;

/* Up for superscript */
if (bIsSuperscript(usFontstyle) && usFontSizeCurr != 0) {
dSuperscriptMove = (double)((usFontSizeCurr + 1) / 2) * 0.375;
fprintf(pFile, "0 %.2f rmoveto\n", dSuperscriptMove);
}

/* Down for subscript */
if (bIsSubscript(usFontstyle) && usFontSizeCurr != 0) {
dSubscriptMove = (double)usFontSizeCurr * 0.125;
fprintf(pFile, "0 %.2f rmoveto\n", -dSubscriptMove);
}

/* Generate and print the PostScript output */
ucBytes = (UCHAR *)szString;
(void)putc('(', pFile);
for (tCount = 0; tCount < tStringLength ; tCount++) {
switch (ucBytes[tCount]) {
case '(':
case ')':
case '\\':
(void)putc('\\', pFile);
(void)putc(szString[tCount], pFile);
break;
default:
if (ucBytes[tCount] < 0x20 ||
(ucBytes[tCount] >= 0x7f &&
ucBytes[tCount] < 0x8c)) {
DBG_HEX(ucBytes[tCount]);
(void)putc(' ', pFile);
} else if (ucBytes[tCount] >= 0x80) {
fprintf(pFile, "\\%03o", (UINT)ucBytes[tCount]);
} else {
(void)putc(szString[tCount], pFile);
}
break;
}
}
fprintf(pFile, ") ");
if ((bIsStrike(usFontstyle) || bIsMarkDel(usFontstyle)) &&
usFontSizeCurr != 0) {
fprintf(pFile, "%.2f %.2f LineShow\n",
(double)usFontSizeCurr * 0.02,
(double)usFontSizeCurr * 0.12);
} else if (bIsUnderline(usFontstyle) && usFontSizeCurr != 0) {
fprintf(pFile, "%.2f %.2f LineShow\n",
(double)usFontSizeCurr * 0.02,
(double)usFontSizeCurr * -0.06);
} else {
fprintf(pFile, "show\n");
}

/* Undo the superscript move */
if (bIsSuperscript(usFontstyle) && usFontSizeCurr != 0) {
fprintf(pFile, "0 %.2f rmoveto\n", -dSuperscriptMove);
}

/* Undo the subscript move */
if (bIsSubscript(usFontstyle) && usFontSizeCurr != 0) {
fprintf(pFile, "0 %.2f rmoveto\n", dSubscriptMove);
}
} /* end of vPrintPS */

/*
* vSetColor - move to the specified color
*/
static void
vSetColor(FILE *pFile, UCHAR ucFontColor)
{
ULONG ulTmp, ulRed, ulGreen, ulBlue;

ulTmp = ulColor2Color(ucFontColor);
ulRed = (ulTmp & 0x0000ff00) >> 8;
ulGreen = (ulTmp & 0x00ff0000) >> 16;
ulBlue = (ulTmp & 0xff000000) >> 24;
fprintf(pFile, "%.3f %.3f %.3f setrgbcolor\n",
ulRed / 255.0, ulGreen / 255.0, ulBlue / 255.0);
} /* end of vSetColor */

/*
* vMove2NextLinePS - move to the next line
*/
void
vMove2NextLinePS(diagram_type *pDiag, USHORT usFontSize)
{
fail(pDiag == NULL);
fail(usFontSize < MIN_FONT_SIZE || usFontSize > MAX_FONT_SIZE);

pDiag->lYtop -= lComputeLeading(usFontSize);
} /* end of vMove2NextLinePS */

/*
* vSubstringPS - print a sub string
*/
void
vSubstringPS(diagram_type *pDiag,
char *szString, size_t tStringLength, long lStringWidth,
UCHAR ucFontColor, USHORT usFontstyle, drawfile_fontref tFontRef,
USHORT usFontSize, USHORT usMaxFontSize)
{
const char *szOurFontname;

fail(pDiag == NULL || szString == NULL);
fail(pDiag->pOutFile == NULL);
fail(pDiag->lXleft < 0);
fail(tStringLength != strlen(szString));
fail(usFontSize < MIN_FONT_SIZE || usFontSize > MAX_FONT_SIZE);
fail(usMaxFontSize < MIN_FONT_SIZE || usMaxFontSize > MAX_FONT_SIZE);
fail(usFontSize > usMaxFontSize);

if (szString[0] == '\0' || tStringLength == 0) {
return;
}

if (tFontRef != tFontRefCurr || usFontSize != usFontSizeCurr) {
szOurFontname = szGetFontname(tFontRef);
fail(szOurFontname == NULL);
fprintf(pDiag->pOutFile,
"%.1f /%s /%s-ISO-8859-x ChgFnt\n",
(double)usFontSize / 2.0,
szOurFontname, szOurFontname);
tFontRefCurr = tFontRef;
usFontSizeCurr = usFontSize;
}
if ((int)ucFontColor != iFontColorCurr) {
vSetColor(pDiag->pOutFile, ucFontColor);
iFontColorCurr = (int)ucFontColor;
}
vMoveTo(pDiag, lComputeLeading(usMaxFontSize));
vPrintPS(pDiag->pOutFile, szString, tStringLength, usFontstyle);
pDiag->lXleft += lStringWidth;
} /* end of vSubstringPS */

/*
* Create an start of paragraph by moving the y-top mark
*/
void
vStartOfParagraphPS(diagram_type *pDiag, long lBeforeIndentation)
{
fail(pDiag == NULL);
fail(lBeforeIndentation < 0);

pDiag->lXleft = 0;
pDiag->lYtop -= lMilliPoints2DrawUnits(lBeforeIndentation);
} /* end of vStartOfParagraphPS */

/*
* Create an end of paragraph by moving the y-top mark
*/
void
vEndOfParagraphPS(diagram_type *pDiag,
USHORT usFontSize, long lAfterIndentation)
{
fail(pDiag == NULL);
fail(pDiag->pOutFile == NULL);
fail(usFontSize < MIN_FONT_SIZE || usFontSize > MAX_FONT_SIZE);
fail(lAfterIndentation < 0);

if (pDiag->lXleft > 0) {
/* To the start of the line */
vMove2NextLinePS(pDiag, usFontSize);
}

pDiag->lXleft = 0;
pDiag->lYtop -= lMilliPoints2DrawUnits(lAfterIndentation);
} /* end of vEndOfParagraphPS */

/*
* Create an end of page
*/
void
vEndOfPagePS(diagram_type *pDiag, BOOL bNewSection)
{
vMove2NextPage(pDiag, bNewSection);
} /* end of vEndOfPagePS */