43341922 |
1 | /* |
2 | * PostScript backend for Halibut |
3 | */ |
4 | |
5 | #include <assert.h> |
6 | #include "halibut.h" |
7 | #include "paper.h" |
8 | |
9 | paragraph *ps_config_filename(char *filename) |
10 | { |
11 | paragraph *p; |
12 | wchar_t *ufilename, *up; |
13 | int len; |
14 | |
15 | p = mknew(paragraph); |
16 | memset(p, 0, sizeof(*p)); |
17 | p->type = para_Config; |
18 | p->next = NULL; |
19 | p->fpos.filename = "<command line>"; |
20 | p->fpos.line = p->fpos.col = -1; |
21 | |
22 | ufilename = ufroma_dup(filename); |
23 | len = ustrlen(ufilename) + 2 + lenof(L"ps-filename"); |
24 | p->keyword = mknewa(wchar_t, len); |
25 | up = p->keyword; |
26 | ustrcpy(up, L"ps-filename"); |
27 | up = uadv(up); |
28 | ustrcpy(up, ufilename); |
29 | up = uadv(up); |
30 | *up = L'\0'; |
31 | assert(up - p->keyword < len); |
32 | sfree(ufilename); |
33 | |
34 | return p; |
35 | } |
36 | |
37 | void ps_backend(paragraph *sourceform, keywordlist *keywords, |
38 | indexdata *idx, void *vdoc) { |
39 | document *doc = (document *)vdoc; |
40 | int font_index; |
41 | font_encoding *fe; |
42 | page_data *page; |
43 | int pageno; |
44 | FILE *fp; |
45 | char *filename; |
46 | paragraph *p; |
47 | |
48 | IGNORE(keywords); |
49 | IGNORE(idx); |
50 | |
51 | filename = dupstr("output.ps"); |
52 | for (p = sourceform; p; p = p->next) { |
53 | p->private_data = NULL; |
54 | if (p->type == para_Config && p->parent) { |
55 | if (!ustricmp(p->keyword, L"ps-filename")) { |
56 | sfree(filename); |
57 | filename = utoa_dup(uadv(p->keyword)); |
58 | } |
59 | } |
60 | } |
61 | |
62 | fp = fopen(filename, "w"); |
63 | if (!fp) { |
64 | error(err_cantopenw, filename); |
65 | return; |
66 | } |
67 | |
68 | fprintf(fp, "%%!PS-Adobe-1.0\n"); |
69 | for (pageno = 0, page = doc->pages; page; page = page->next) |
70 | pageno++; |
71 | fprintf(fp, "%%%%Pages: %d\n", pageno); |
72 | fprintf(fp, "%%%%EndComments\n"); |
73 | |
74 | fprintf(fp, "%%%%BeginProlog\n"); |
75 | fprintf(fp, "%%%%EndProlog\n"); |
76 | |
77 | fprintf(fp, "%%%%BeginSetup\n"); |
78 | /* |
79 | * Re-encode and re-metric the fonts. |
80 | */ |
81 | font_index = 0; |
82 | for (fe = doc->fonts->head; fe; fe = fe->next) { |
83 | char fname[40]; |
84 | int i; |
85 | |
86 | sprintf(fname, "f%d", font_index++); |
87 | fe->name = dupstr(fname); |
88 | |
89 | fprintf(fp, "/%s findfont dup length dict begin\n", fe->font->name); |
90 | fprintf(fp, "{1 index /FID ne {def} {pop pop} ifelse} forall\n"); |
91 | fprintf(fp, "/Encoding [\n"); |
92 | for (i = 0; i < 256; i++) |
93 | fprintf(fp, "/%s\n", fe->vector[i] ? fe->vector[i] : ".notdef"); |
94 | fprintf(fp, "] def /Metrics 256 dict dup begin\n"); |
95 | for (i = 0; i < 256; i++) { |
96 | if (fe->indices[i] >= 0) { |
97 | double width = fe->font->widths[fe->indices[i]]; |
98 | fprintf(fp, "/%s %g def\n", fe->vector[i], |
99 | 1000.0 * width / 4096.0); |
100 | } |
101 | } |
102 | fprintf(fp, "end def currentdict end\n"); |
103 | fprintf(fp, "/fontname-%s exch definefont /%s exch def\n\n", |
104 | fe->name, fe->name); |
105 | } |
106 | fprintf(fp, "%%%%EndSetup\n"); |
107 | |
108 | /* |
109 | * Output the text. |
110 | */ |
111 | pageno = 0; |
112 | for (page = doc->pages; page; page = page->next) { |
113 | text_fragment *frag; |
114 | |
115 | pageno++; |
116 | fprintf(fp, "%%%%Page: %d %d\n", pageno, pageno); |
117 | fprintf(fp, "%%%%BeginPageSetup\n"); |
118 | fprintf(fp, "%%%%EndPageSetup\n"); |
119 | |
138d7ffb |
120 | #if 0 |
121 | { |
122 | xref *xr; |
123 | /* |
124 | * I used this diagnostic briefly to ensure that |
125 | * cross-reference rectangles were being put where they |
126 | * should be. |
127 | */ |
128 | for (xr = page->first_xref; xr; xr = xr->next) { |
129 | fprintf(fp, "gsave 0.7 setgray %g %g moveto", |
130 | xr->lx/4096.0, xr->ty/4096.0); |
131 | fprintf(fp, " %g %g lineto %g %g lineto", |
132 | xr->lx/4096.0, xr->by/4096.0, |
133 | xr->rx/4096.0, xr->by/4096.0); |
134 | fprintf(fp, " %g %g lineto closepath fill grestore\n", |
135 | xr->rx/4096.0, xr->ty/4096.0); |
136 | } |
137 | } |
138 | #endif |
139 | |
43341922 |
140 | for (frag = page->first_text; frag; frag = frag->next) { |
141 | char *c; |
142 | |
143 | fprintf(fp, "%s %d scalefont setfont %g %g moveto (", |
144 | frag->fe->name, frag->fontsize, |
145 | frag->x/4096.0, frag->y/4096.0); |
146 | |
147 | for (c = frag->text; *c; c++) { |
148 | if (*c == '(' || *c == ')' || *c == '\\') |
149 | fputc('\\', fp); |
150 | fputc(*c, fp); |
151 | } |
152 | |
153 | fprintf(fp, ") show\n"); |
154 | } |
155 | |
156 | fprintf(fp, "showpage\n"); |
157 | } |
158 | |
159 | fprintf(fp, "%%%%EOF\n"); |
160 | |
161 | fclose(fp); |
162 | |
163 | sfree(filename); |
164 | } |