X-Git-Url: https://git.distorted.org.uk/~mdw/sgt/halibut/blobdiff_plain/f0e51ce1f8e8c03966509153e9ff360684d4dd6f..ee90d1f0229c97e51b96cb92714de6f6d5b2b450:/bk_ps.c diff --git a/bk_ps.c b/bk_ps.c index 77b0ab5..5409290 100644 --- a/bk_ps.c +++ b/bk_ps.c @@ -6,32 +6,11 @@ #include "halibut.h" #include "paper.h" +static void ps_comment(FILE *fp, char const *leader, word *words); + paragraph *ps_config_filename(char *filename) { - paragraph *p; - wchar_t *ufilename, *up; - int len; - - p = mknew(paragraph); - memset(p, 0, sizeof(*p)); - p->type = para_Config; - p->next = NULL; - p->fpos.filename = ""; - p->fpos.line = p->fpos.col = -1; - - ufilename = ufroma_dup(filename); - len = ustrlen(ufilename) + 2 + lenof(L"ps-filename"); - p->keyword = mknewa(wchar_t, len); - up = p->keyword; - ustrcpy(up, L"ps-filename"); - up = uadv(up); - ustrcpy(up, ufilename); - up = uadv(up); - *up = L'\0'; - assert(up - p->keyword < len); - sfree(ufilename); - - return p; + return cmdline_cfg_simple("ps-filename", filename, NULL); } void ps_backend(paragraph *sourceform, keywordlist *keywords, @@ -50,10 +29,10 @@ void ps_backend(paragraph *sourceform, keywordlist *keywords, filename = dupstr("output.ps"); for (p = sourceform; p; p = p->next) { - if (p->type == para_Config && p->parent) { + if (p->type == para_Config) { if (!ustricmp(p->keyword, L"ps-filename")) { sfree(filename); - filename = utoa_dup(uadv(p->keyword)); + filename = dupstr(adv(p->origkeyword)); } } } @@ -64,18 +43,63 @@ void ps_backend(paragraph *sourceform, keywordlist *keywords, return; } - fprintf(fp, "%%!PS-Adobe-1.0\n"); + fprintf(fp, "%%!PS-Adobe-3.0\n"); + fprintf(fp, "%%%%Creator: Halibut, %s\n", version); + fprintf(fp, "%%%%DocumentData: Clean8Bit\n"); + fprintf(fp, "%%%%LanguageLevel: 1\n"); for (pageno = 0, page = doc->pages; page; page = page->next) pageno++; fprintf(fp, "%%%%Pages: %d\n", pageno); + for (p = sourceform; p; p = p->next) + if (p->type == para_Title) + ps_comment(fp, "%%Title: ", p->words); + fprintf(fp, "%%%%DocumentNeededResources:\n"); + for (fe = doc->fonts->head; fe; fe = fe->next) + /* XXX This may request the same font multiple times. */ + fprintf(fp, "%%%%+ font %s\n", fe->font->name); + fprintf(fp, "%%%%DocumentSuppliedResources: procset Halibut 0 0\n"); fprintf(fp, "%%%%EndComments\n"); fprintf(fp, "%%%%BeginProlog\n"); + fprintf(fp, "%%%%BeginResource: procset Halibut 0 0\n"); + /* + * Supply a prologue function which allows a reasonably + * compressed representation of the text on the pages. + * + * Expects two arguments: a y-coordinate, and then an array. + * Elements of the array are processed sequentially as follows: + * + * - a number is treated as an x-coordinate + * - an array is treated as a (font, size) pair + * - a string is shown + */ + fprintf(fp, + "/tdict 4 dict dup begin\n" + " /arraytype {aload pop scalefont setfont} bind def\n" + " /realtype {1 index moveto} bind def\n" + " /integertype /realtype load def\n" + " /stringtype {show} bind def\n" + "end def\n" + "/t { tdict begin {dup type exec} forall end pop } bind def\n"); + + fprintf(fp, "%%%%EndResource\n"); fprintf(fp, "%%%%EndProlog\n"); fprintf(fp, "%%%%BeginSetup\n"); + + /* + * This is as good a place as any to put version IDs. + */ + for (p = sourceform; p; p = p->next) + if (p->type == para_VersionID) + ps_comment(fp, "% ", p->words); + + for (fe = doc->fonts->head; fe; fe = fe->next) + /* XXX This may request the same font multiple times. */ + fprintf(fp, "%%%%IncludeResource: font %s\n", fe->font->name); + /* - * Re-encode and re-metric the fonts. + * Re-encode the fonts. */ font_index = 0; for (fe = doc->fonts->head; fe; fe = fe->next) { @@ -89,16 +113,10 @@ void ps_backend(paragraph *sourceform, keywordlist *keywords, fprintf(fp, "{1 index /FID ne {def} {pop pop} ifelse} forall\n"); fprintf(fp, "/Encoding [\n"); for (i = 0; i < 256; i++) - fprintf(fp, "/%s\n", fe->vector[i] ? fe->vector[i] : ".notdef"); - fprintf(fp, "] def /Metrics 256 dict dup begin\n"); - for (i = 0; i < 256; i++) { - if (fe->indices[i] >= 0) { - double width = fe->font->widths[fe->indices[i]]; - fprintf(fp, "/%s %g def\n", fe->vector[i], - 1000.0 * width / 4096.0); - } - } - fprintf(fp, "end def currentdict end\n"); + fprintf(fp, "/%s%c", fe->vector[i] ? fe->vector[i] : ".notdef", + i % 4 == 3 ? '\n' : ' '); + fprintf(fp, "] def\n"); + fprintf(fp, "currentdict end\n"); fprintf(fp, "/fontname-%s exch definefont /%s exch def\n\n", fe->name, fe->name); } @@ -109,13 +127,12 @@ void ps_backend(paragraph *sourceform, keywordlist *keywords, */ pageno = 0; for (page = doc->pages; page; page = page->next) { - text_fragment *frag; + text_fragment *frag, *frag_end; rect *r; pageno++; fprintf(fp, "%%%%Page: %d %d\n", pageno, pageno); - fprintf(fp, "%%%%BeginPageSetup\n"); - fprintf(fp, "%%%%EndPageSetup\n"); + fprintf(fp, "save\n"); #if 0 { @@ -127,12 +144,12 @@ void ps_backend(paragraph *sourceform, keywordlist *keywords, */ for (xr = page->first_xref; xr; xr = xr->next) { fprintf(fp, "gsave 0.7 setgray %g %g moveto", - xr->lx/4096.0, xr->ty/4096.0); + xr->lx/FUNITS_PER_PT, xr->ty/FUNITS_PER_PT); fprintf(fp, " %g %g lineto %g %g lineto", - xr->lx/4096.0, xr->by/4096.0, - xr->rx/4096.0, xr->by/4096.0); + xr->lx/FUNITS_PER_PT, xr->by/FUNITS_PER_PT, + xr->rx/FUNITS_PER_PT, xr->by/FUNITS_PER_PT); fprintf(fp, " %g %g lineto closepath fill grestore\n", - xr->rx/4096.0, xr->ty/4096.0); + xr->rx/FUNITS_PER_PT, xr->ty/FUNITS_PER_PT); } } #endif @@ -140,27 +157,52 @@ void ps_backend(paragraph *sourceform, keywordlist *keywords, for (r = page->first_rect; r; r = r->next) { fprintf(fp, "%g %g moveto %g 0 rlineto 0 %g rlineto " "-%g 0 rlineto closepath fill\n", - r->x / 4096.0, r->y / 4096.0, r->w / 4096.0, - r->h / 4096.0, r->w / 4096.0); + r->x / FUNITS_PER_PT, r->y / FUNITS_PER_PT, + r->w / FUNITS_PER_PT, r->h / FUNITS_PER_PT, + r->w / FUNITS_PER_PT); } - for (frag = page->first_text; frag; frag = frag->next) { + frag = page->first_text; + while (frag) { + font_encoding *fe; + int fs; char *c; - fprintf(fp, "%s %d scalefont setfont %g %g moveto (", - frag->fe->name, frag->fontsize, - frag->x/4096.0, frag->y/4096.0); + /* + * Collect all the adjacent text fragments with the + * same y-coordinate. + */ + for (frag_end = frag; + frag_end && frag_end->y == frag->y; + frag_end = frag_end->next); + + fprintf(fp, "%g[", frag->y / FUNITS_PER_PT); - for (c = frag->text; *c; c++) { - if (*c == '(' || *c == ')' || *c == '\\') - fputc('\\', fp); - fputc(*c, fp); + fe = NULL; + fs = -1; + + while (frag && frag != frag_end) { + + if (frag->fe != fe || frag->fontsize != fs) + fprintf(fp, "[%s %d]", frag->fe->name, frag->fontsize); + fe = frag->fe; + fs = frag->fontsize; + + fprintf(fp, "%g(", frag->x/FUNITS_PER_PT); + for (c = frag->text; *c; c++) { + if (*c == '(' || *c == ')' || *c == '\\') + fputc('\\', fp); + fputc(*c, fp); + } + fprintf(fp, ")"); + + frag = frag->next; } - fprintf(fp, ") show\n"); + fprintf(fp, "]t\n"); } - fprintf(fp, "showpage\n"); + fprintf(fp, "restore showpage\n"); } fprintf(fp, "%%%%EOF\n"); @@ -169,3 +211,42 @@ void ps_backend(paragraph *sourceform, keywordlist *keywords, sfree(filename); } + +static void ps_comment(FILE *fp, char const *leader, word *words) +{ + fprintf(fp, "%s", leader); + + for (; words; words = words->next) { + char *text; + int type; + + switch (words->type) { + case word_HyperLink: + case word_HyperEnd: + case word_UpperXref: + case word_LowerXref: + case word_XrefEnd: + case word_IndexRef: + continue; + } + + type = removeattr(words->type); + + switch (type) { + case word_Normal: + text = utoa_dup(words->text, CS_ASCII); + break; + case word_WhiteSpace: + text = dupstr(" "); + break; + case word_Quote: + text = dupstr("'"); + break; + } + + fputs(text, fp); + sfree(text); + } + + fprintf(fp, "\n"); +}