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fped/postscript.c
werner 2737f8a3fa - postscript.c: always run flattenpath before pathbbox
- postscript.c: fixed algorithm in "center"
- dump.c: reorder frames if we would end up with forward-references
- sc89.fpd, fbga.fpd: changed "part" to new "package"



git-svn-id: http://svn.openmoko.org/trunk/eda/fped@5490 99fdad57-331a-0410-800a-d7fa5415bdb3
2009-08-19 22:13:47 +00:00

417 lines
11 KiB
C

/*
* postscript.c - Dump objects in Postscript
*
* Written 2009 by Werner Almesberger
* Copyright 2009 by Werner Almesberger
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <stdlib.h>
#include <stdio.h>
#include "coord.h"
#include "inst.h"
#include "gui_status.h"
#include "gui_inst.h"
#include "postscript.h"
#define PS_DOT_DIST mm_to_units(0.03)
#define PS_DOT_DIAM mm_to_units(0.01)
#define PS_HATCH mm_to_units(0.1)
#define PS_HATCH_LINE mm_to_units(0.015)
#define PS_FONT_OUTLINE mm_to_units(0.025)
#define PS_MEAS_LINE mm_to_units(0.015)
#define PS_MEAS_ARROW_LEN mm_to_units(0.07)
#define PS_MEAS_ARROW_ANGLE 30
#define PS_MEAS_TEXT_HEIGHT mm_to_units(0.2)
#define PS_MEAS_BASE_OFFSET mm_to_units(0.05)
#define PS_CROSS_WIDTH mm_to_units(0.01)
#define PS_CROSS_DASH mm_to_units(0.1)
struct postscript_params postscript_params = {
.zoom = 10.0,
.show_pad_names = 1,
.show_stuff = 0,
.label_vecs = 0,
.show_meas = 1,
};
static void ps_pad_name(FILE *file, const struct inst *inst)
{
struct coord a = inst->base;
struct coord b = inst->u.pad.other;
unit_type h, w;
h = a.y-b.y;
w = a.x-b.x;
if (h < 0)
h = -h;
if (w < 0)
w = -w;
fprintf(file, "0 setgray /Helvetica-Bold findfont dup\n");
fprintf(file, " (%s) %d %d\n", inst->u.pad.name, w/2, h/2);
fprintf(file, " 4 copy 100 maxfont\n");
fprintf(file, " maxfont scalefont setfont\n");
fprintf(file, " %d %d moveto\n", (a.x+b.x)/2, (a.y+b.y)/2);
fprintf(file, " (%s) center %d showoutlined newpath\n",
inst->u.pad.name, PS_FONT_OUTLINE);
}
static void ps_pad(FILE *file, const struct inst *inst, int show_name)
{
struct coord a = inst->base;
struct coord b = inst->u.pad.other;
fprintf(file, "0 setgray %d setlinewidth\n", PS_HATCH_LINE);
fprintf(file, " %d %d moveto\n", a.x, a.y);
fprintf(file, " %d %d lineto\n", b.x, a.y);
fprintf(file, " %d %d lineto\n", b.x, b.y);
fprintf(file, " %d %d lineto\n", a.x, b.y);
fprintf(file, " closepath gsave crosspath grestore stroke\n");
if (show_name)
ps_pad_name(file, inst);
}
static void ps_rpad(FILE *file, const struct inst *inst, int show_name)
{
struct coord a = inst->base;
struct coord b = inst->u.pad.other;
unit_type h, w, r;
sort_coord(&a, &b);
h = b.y-a.y;
w = b.x-a.x;
fprintf(file, "0 setgray %d setlinewidth\n", PS_HATCH_LINE);
if (h > w) {
r = w/2;
fprintf(file, " %d %d moveto\n", b.x, b.y-r);
fprintf(file, " %d %d %d 0 180 arc\n", a.x+r, b.y-r, r);
fprintf(file, " %d %d lineto\n", a.x, a.y+r);
fprintf(file, " %d %d %d 180 360 arc\n", a.x+r, a.y+r, r);
} else {
r = h/2;
fprintf(file, " %d %d moveto\n", b.x-r, a.y);
fprintf(file, " %d %d %d -90 90 arc\n", b.x-r, a.y+r, r);
fprintf(file, " %d %d lineto\n", a.x+r, b.y);
fprintf(file, " %d %d %d 90 270 arc\n", a.x+r, a.y+r, r);
}
fprintf(file, " closepath gsave hatchpath grestore stroke\n");
if (show_name)
ps_pad_name(file, inst);
}
static void ps_line(FILE *file, const struct inst *inst)
{
struct coord a = inst->base;
struct coord b = inst->u.rect.end;
fprintf(file, "1 setlinecap 0.5 setgray %d setlinewidth\n",
inst->u.rect.width);
fprintf(file, " %d %d moveto %d %d lineto stroke\n",
a.x, a.y, b.x, b.y);
}
static void ps_rect(FILE *file, const struct inst *inst)
{
struct coord a = inst->base;
struct coord b = inst->u.rect.end;
fprintf(file, "1 setlinecap 0.5 setgray %d setlinewidth\n",
inst->u.rect.width);
fprintf(file, " %d %d moveto\n", a.x, a.y);
fprintf(file, " %d %d lineto\n", b.x, a.y);
fprintf(file, " %d %d lineto\n", b.x, b.y);
fprintf(file, " %d %d lineto\n", a.x, b.y);
fprintf(file, " closepath stroke\n");
}
static void ps_arc(FILE *file, const struct inst *inst)
{
double a1, a2;
a1 = inst->u.arc.a1;
a2 = inst->u.arc.a2;
if (a2 <= a1)
a2 += 360;
fprintf(file, "1 setlinecap 0.5 setgray %d setlinewidth\n",
inst->u.arc.width);
fprintf(file, " newpath %d %d %d %f %f arc stroke\n",
inst->base.x, inst->base.y, inst->u.arc.r, a1, a2);
}
static void ps_frame(FILE *file, const struct inst *inst)
{
}
static void ps_vec(FILE *file, const struct inst *inst)
{
}
static void ps_arrow(FILE *file, struct coord from, struct coord to, int len,
int angle)
{
struct coord side, p;
if (from.x == to.x && from.y == to.y) {
side.x = 0;
side.y = -len;
} else {
side = normalize(sub_vec(to, from), len);
}
p = add_vec(to, rotate(side, 180-angle));
fprintf(file, " %d %d moveto\n", p.x, p.y);
fprintf(file, " %d %d lineto\n", to.x, to.y);
p = add_vec(to, rotate(side, 180+angle));
fprintf(file, " %d %d moveto\n", p.x, p.y);
fprintf(file, " %d %d lineto\n", to.x, to.y);
fprintf(file, " stroke\n");
}
static void ps_meas(FILE *file, const struct inst *inst,
enum curr_unit unit)
{
struct coord a0, b0, a1, b1;
struct coord c, d;
char *s;
a0 = inst->base;
b0 = inst->u.meas.end;
project_meas(inst, &a1, &b1);
fprintf(file, "1 setlinecap 0 setgray %d setlinewidth\n", PS_MEAS_LINE);
fprintf(file, " %d %d moveto\n", a0.x, a0.y);
fprintf(file, " %d %d lineto\n", a1.x, a1.y);
fprintf(file, " %d %d lineto\n", b1.x, b1.y);
fprintf(file, " %d %d lineto\n", b0.x, b0.y);
fprintf(file, " stroke\n");
ps_arrow(file, a1, b1, PS_MEAS_ARROW_LEN, PS_MEAS_ARROW_ANGLE);
ps_arrow(file, b1, a1, PS_MEAS_ARROW_LEN, PS_MEAS_ARROW_ANGLE);
s = format_len(inst->obj->u.meas.label ? inst->obj->u.meas.label : "",
dist_point(a1, b1), unit);
c = add_vec(a1, b1);
d = sub_vec(b1, a1);
//s = stralloc_printf("%s%lgmm", meas->label ? meas->label : "", len);
fprintf(file, "gsave %d %d moveto\n", c.x/2, c.y/2);
fprintf(file, " /Helvetica-Bold findfont dup\n");
fprintf(file, " (%s) %d %d\n", s,
(int) (dist_point(a1, b1)-1.5*PS_MEAS_ARROW_LEN),
PS_MEAS_TEXT_HEIGHT);
fprintf(file, " 4 copy 100 maxfont maxfont scalefont setfont\n");
fprintf(file, " %f rotate\n", atan2(d.y, d.x)/M_PI*180);
fprintf(file, " (%s) %d hcenter\n", s, PS_MEAS_BASE_OFFSET);
fprintf(file, " show grestore\n");
free(s);
}
static void ps_background(FILE *file, enum inst_prio prio,
const struct inst *inst)
{
switch (prio) {
case ip_line:
ps_line(file, inst);
break;
case ip_rect:
ps_rect(file, inst);
break;
case ip_circ:
case ip_arc:
ps_arc(file, inst);
break;
default:
break;
}
}
static void ps_foreground(FILE *file, enum inst_prio prio,
const struct inst *inst)
{
switch (prio) {
case ip_pad:
if (inst->obj->u.pad.rounded)
ps_rpad(file, inst, postscript_params.show_pad_names);
else
ps_pad(file, inst, postscript_params.show_pad_names);
break;
case ip_vec:
if (postscript_params.show_stuff)
ps_vec(file, inst);
break;
case ip_frame:
if (postscript_params.show_stuff)
ps_frame(file, inst);
break;
case ip_meas:
if (postscript_params.show_meas)
ps_meas(file, inst, curr_unit);
break;
default:
break;
}
}
static void ps_cross(FILE *file, const struct inst *inst)
{
fprintf(file, "gsave 0 setgray %d setlinewidth\n", PS_CROSS_WIDTH);
fprintf(file, " [%d] 0 setdash\n", PS_CROSS_DASH);
fprintf(file, " %d 0 moveto %d 0 lineto\n",
inst->bbox.min.x, inst->bbox.max.x);
fprintf(file, " 0 %d moveto 0 %d lineto\n",
inst->bbox.min.y, inst->bbox.max.y);
fprintf(file, " stroke grestore \n");
}
int postscript(FILE *file)
{
enum inst_prio prio;
const struct inst *inst;
int i;
fprintf(file, "%%!PS\n");
fprintf(file,
"currentpagedevice /PageSize get\n"
" aload pop\n"
" 2 div exch 2 div exch\n"
" translate\n"
" %f 72 mul %d div 1000 div dup scale\n",
(double) postscript_params.zoom , (int) MIL_UNITS);
fprintf(file,
"/dotpath {\n"
" gsave flattenpath pathbbox clip newpath\n"
" 1 setlinecap %d setlinewidth\n"
" /ury exch def /urx exch def /lly exch def /llx exch def\n"
" llx %d urx {\n"
" lly %d ury {\n"
" 1 index exch moveto 0 0 rlineto stroke\n"
" } for\n"
" } for\n"
" grestore newpath } def\n", PS_DOT_DIAM, PS_DOT_DIST, PS_DOT_DIST);
fprintf(file,
"/hatchpath {\n"
" gsave flattenpath pathbbox clip newpath\n"
" /ury exch def /urx exch def /lly exch def /llx exch def\n"
" lly ury sub %d urx llx sub {\n" /* for -(ury-lly) to urx-llx */
" llx add dup lly moveto\n"
" ury lly sub add ury lineto stroke\n"
" } for\n"
" grestore newpath } def\n", PS_HATCH);
fprintf(file,
"/backhatchpath {\n"
" gsave flattenpath pathbbox clip newpath\n"
" /ury exch def /urx exch def /lly exch def /llx exch def\n"
" 0 %d ury lly sub urx llx sub add {\n" /* for 0 to urx-llx_ury-lly */
" llx add dup lly moveto\n"
" ury lly sub sub ury lineto stroke\n"
" } for\n"
" grestore newpath } def\n", PS_HATCH);
fprintf(file,
"/crosspath {\n"
" gsave hatchpath grestore backhatchpath } def\n");
/*
* Stack: font string width height factor -> factor
*/
fprintf(file,
"/maxfont {\n"
" gsave 0 0 moveto\n"
" /f exch def /h exch def /w exch def\n"
" exch f scalefont setfont\n"
" false charpath flattenpath pathbbox\n"
" /ury exch def /urx exch def /lly exch def /llx exch def\n"
" w urx llx sub div h ury lly sub div 2 copy gt { exch } if pop\n"
" f mul grestore } def\n");
/*
* Stack: string -> string
*/
fprintf(file,
"/center {\n"
" currentpoint /y exch def /x exch def\n"
" gsave dup false charpath flattenpath pathbbox\n"
" /ury exch def /urx exch def\n"
" /lly exch def /llx exch def\n"
" grestore\n"
" x llx urx add 2 div sub y lly ury add 2 div sub rmoveto } def\n");
/*
* Stack: string dist -> string
*/
fprintf(file,
"/hcenter {\n"
" /off exch def\n"
" gsave dup false charpath flattenpath pathbbox\n"
" /ury exch def /urx exch def /lly exch def /llx exch def\n"
" grestore\n"
" llx urx sub 2 div\n"
" currentpoint exch pop lly sub off add rmoveto } def\n");
/*
* Stack: string outline_width -> -
*/
fprintf(file,
"/showoutlined {\n"
" gsave 2 mul setlinewidth 1 setgray\n"
" dup false charpath flattenpath stroke grestore\n"
" show } def\n");
/*
* Stack: string -> string
*/
fprintf(file,
"/debugbox { gsave dup false charpath flattenpath pathbbox\n"
" /ury exch def /urx exch def /lly exch def /llx exch def\n"
" 0 setgray 100 setlinewidth\n"
" llx lly urx llx sub ury lly sub rectstroke grestore } def\n");
ps_cross(file, pkgs->insts[ip_frame]);
FOR_INST_PRIOS_UP(prio)
FOR_ALL_INSTS(i, prio, inst)
ps_background(file, prio, inst);
FOR_INST_PRIOS_UP(prio)
FOR_ALL_INSTS(i, prio, inst)
ps_foreground(file, prio, inst);
fprintf(file, "showpage\n");
fprintf(file, "%%%%EOF\n");
fflush(file);
return !ferror(file);
}