diff options
Diffstat (limited to 'bk_ps.c')
| -rw-r--r-- | bk_ps.c | 144 |
1 files changed, 144 insertions, 0 deletions
@@ -0,0 +1,144 @@ +/* + * PostScript backend for Halibut + */ + +#include <assert.h> +#include "halibut.h" +#include "paper.h" + +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 = "<command line>"; + 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; +} + +void ps_backend(paragraph *sourceform, keywordlist *keywords, + indexdata *idx, void *vdoc) { + document *doc = (document *)vdoc; + int font_index; + font_encoding *fe; + page_data *page; + int pageno; + FILE *fp; + char *filename; + paragraph *p; + + IGNORE(keywords); + IGNORE(idx); + + filename = dupstr("output.ps"); + for (p = sourceform; p; p = p->next) { + p->private_data = NULL; + if (p->type == para_Config && p->parent) { + if (!ustricmp(p->keyword, L"ps-filename")) { + sfree(filename); + filename = utoa_dup(uadv(p->keyword)); + } + } + } + + fp = fopen(filename, "w"); + if (!fp) { + error(err_cantopenw, filename); + return; + } + + fprintf(fp, "%%!PS-Adobe-1.0\n"); + for (pageno = 0, page = doc->pages; page; page = page->next) + pageno++; + fprintf(fp, "%%%%Pages: %d\n", pageno); + fprintf(fp, "%%%%EndComments\n"); + + fprintf(fp, "%%%%BeginProlog\n"); + fprintf(fp, "%%%%EndProlog\n"); + + fprintf(fp, "%%%%BeginSetup\n"); + /* + * Re-encode and re-metric the fonts. + */ + font_index = 0; + for (fe = doc->fonts->head; fe; fe = fe->next) { + char fname[40]; + int i; + + sprintf(fname, "f%d", font_index++); + fe->name = dupstr(fname); + + fprintf(fp, "/%s findfont dup length dict begin\n", fe->font->name); + 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, "/fontname-%s exch definefont /%s exch def\n\n", + fe->name, fe->name); + } + fprintf(fp, "%%%%EndSetup\n"); + + /* + * Output the text. + */ + pageno = 0; + for (page = doc->pages; page; page = page->next) { + text_fragment *frag; + + pageno++; + fprintf(fp, "%%%%Page: %d %d\n", pageno, pageno); + fprintf(fp, "%%%%BeginPageSetup\n"); + fprintf(fp, "%%%%EndPageSetup\n"); + + for (frag = page->first_text; frag; frag = frag->next) { + char *c; + + fprintf(fp, "%s %d scalefont setfont %g %g moveto (", + frag->fe->name, frag->fontsize, + frag->x/4096.0, frag->y/4096.0); + + for (c = frag->text; *c; c++) { + if (*c == '(' || *c == ')' || *c == '\\') + fputc('\\', fp); + fputc(*c, fp); + } + + fprintf(fp, ") show\n"); + } + + fprintf(fp, "showpage\n"); + } + + fprintf(fp, "%%%%EOF\n"); + + fclose(fp); + + sfree(filename); +} |