1 5cedca1b 2004-05-15 devnull #include <stdio.h>
2 5cedca1b 2004-05-15 devnull #include <stdlib.h>
3 5cedca1b 2004-05-15 devnull #include "pic.h"
4 5cedca1b 2004-05-15 devnull #include "y.tab.h"
6 5cedca1b 2004-05-15 devnull #define NBRACK 20 /* depth of [...] */
7 5cedca1b 2004-05-15 devnull #define NBRACE 20 /* depth of {...} */
9 5cedca1b 2004-05-15 devnull struct pushstack stack[NBRACK];
10 5cedca1b 2004-05-15 devnull int nstack = 0;
11 5cedca1b 2004-05-15 devnull struct pushstack bracestack[NBRACE];
12 5cedca1b 2004-05-15 devnull int nbstack = 0;
14 5cedca1b 2004-05-15 devnull void blockadj(obj *);
16 5cedca1b 2004-05-15 devnull obj *leftthing(int c) /* called for {... or [... */
17 5cedca1b 2004-05-15 devnull /* really ought to be separate functions */
21 5cedca1b 2004-05-15 devnull if (c == '[') {
22 5cedca1b 2004-05-15 devnull if (nstack >= NBRACK)
23 5cedca1b 2004-05-15 devnull ERROR "[...] nested too deep" FATAL;
24 5cedca1b 2004-05-15 devnull stack[nstack].p_x = curx;
25 5cedca1b 2004-05-15 devnull stack[nstack].p_y = cury;
26 5cedca1b 2004-05-15 devnull stack[nstack].p_hvmode = hvmode;
27 5cedca1b 2004-05-15 devnull curx = cury = 0;
28 5cedca1b 2004-05-15 devnull stack[nstack].p_xmin = xmin;
29 5cedca1b 2004-05-15 devnull stack[nstack].p_xmax = xmax;
30 5cedca1b 2004-05-15 devnull stack[nstack].p_ymin = ymin;
31 5cedca1b 2004-05-15 devnull stack[nstack].p_ymax = ymax;
32 5cedca1b 2004-05-15 devnull nstack++;
33 5cedca1b 2004-05-15 devnull xmin = ymin = 30000;
34 5cedca1b 2004-05-15 devnull xmax = ymax = -30000;
35 5cedca1b 2004-05-15 devnull p = makenode(BLOCK, 7);
36 5cedca1b 2004-05-15 devnull p->o_val[4] = nobj; /* 1st item within [...] */
37 5cedca1b 2004-05-15 devnull if (p->o_nobj != nobj-1)
38 5cedca1b 2004-05-15 devnull fprintf(stderr, "nobjs wrong%d %d\n", p->o_nobj, nobj);
40 5cedca1b 2004-05-15 devnull if (nbstack >= NBRACK)
41 5cedca1b 2004-05-15 devnull ERROR "{...} nested too deep" FATAL;
42 5cedca1b 2004-05-15 devnull bracestack[nbstack].p_x = curx;
43 5cedca1b 2004-05-15 devnull bracestack[nbstack].p_y = cury;
44 5cedca1b 2004-05-15 devnull bracestack[nbstack].p_hvmode = hvmode;
45 5cedca1b 2004-05-15 devnull nbstack++;
46 5cedca1b 2004-05-15 devnull p = NULL;
48 5cedca1b 2004-05-15 devnull return(p);
51 5cedca1b 2004-05-15 devnull obj *rightthing(obj *p, int c) /* called for ... ] or ... } */
55 5cedca1b 2004-05-15 devnull if (c == '}') {
56 5cedca1b 2004-05-15 devnull nbstack--;
57 5cedca1b 2004-05-15 devnull curx = bracestack[nbstack].p_x;
58 5cedca1b 2004-05-15 devnull cury = bracestack[nbstack].p_y;
59 5cedca1b 2004-05-15 devnull hvmode = bracestack[nbstack].p_hvmode;
60 5cedca1b 2004-05-15 devnull q = makenode(MOVE, 0);
61 5cedca1b 2004-05-15 devnull dprintf("M %g %g\n", curx, cury);
63 5cedca1b 2004-05-15 devnull nstack--;
64 5cedca1b 2004-05-15 devnull curx = stack[nstack].p_x;
65 5cedca1b 2004-05-15 devnull cury = stack[nstack].p_y;
66 5cedca1b 2004-05-15 devnull hvmode = stack[nstack].p_hvmode;
67 5cedca1b 2004-05-15 devnull q = makenode(BLOCKEND, 7);
68 5cedca1b 2004-05-15 devnull q->o_val[4] = p->o_nobj + 1; /* back pointer */
69 5cedca1b 2004-05-15 devnull p->o_val[5] = q->o_nobj - 1; /* forward pointer */
70 5cedca1b 2004-05-15 devnull if (xmin > xmax) /* nothing happened */
71 5cedca1b 2004-05-15 devnull xmin = xmax;
72 5cedca1b 2004-05-15 devnull if (ymin > ymax)
73 5cedca1b 2004-05-15 devnull ymin = ymax;
74 5cedca1b 2004-05-15 devnull p->o_val[0] = xmin; p->o_val[1] = ymin;
75 5cedca1b 2004-05-15 devnull p->o_val[2] = xmax; p->o_val[3] = ymax;
76 5cedca1b 2004-05-15 devnull p->o_symtab = q->o_symtab = stack[nstack+1].p_symtab;
77 5cedca1b 2004-05-15 devnull xmin = stack[nstack].p_xmin;
78 5cedca1b 2004-05-15 devnull ymin = stack[nstack].p_ymin;
79 5cedca1b 2004-05-15 devnull xmax = stack[nstack].p_xmax;
80 5cedca1b 2004-05-15 devnull ymax = stack[nstack].p_ymax;
82 5cedca1b 2004-05-15 devnull return(q);
85 5cedca1b 2004-05-15 devnull obj *blockgen(obj *p, obj *q) /* handles [...] */
87 5cedca1b 2004-05-15 devnull int i, invis, at, with;
88 5cedca1b 2004-05-15 devnull double ddval, h, w, xwith, ywith;
89 5cedca1b 2004-05-15 devnull double x0, y0, x1, y1, cx, cy;
90 5cedca1b 2004-05-15 devnull obj *ppos;
91 5cedca1b 2004-05-15 devnull Attr *ap;
93 5cedca1b 2004-05-15 devnull invis = at = 0;
94 5cedca1b 2004-05-15 devnull with = xwith = ywith = 0;
95 5cedca1b 2004-05-15 devnull ddval = 0;
96 5cedca1b 2004-05-15 devnull w = p->o_val[2] - p->o_val[0];
97 5cedca1b 2004-05-15 devnull h = p->o_val[3] - p->o_val[1];
98 5cedca1b 2004-05-15 devnull cx = (p->o_val[2] + p->o_val[0]) / 2; /* geom ctr of [] wrt local orogin */
99 5cedca1b 2004-05-15 devnull cy = (p->o_val[3] + p->o_val[1]) / 2;
100 5cedca1b 2004-05-15 devnull dprintf("cx,cy=%g,%g\n", cx, cy);
101 5cedca1b 2004-05-15 devnull for (i = 0; i < nattr; i++) {
102 5cedca1b 2004-05-15 devnull ap = &attr[i];
103 5cedca1b 2004-05-15 devnull switch (ap->a_type) {
104 5cedca1b 2004-05-15 devnull case HEIGHT:
105 5cedca1b 2004-05-15 devnull h = ap->a_val.f;
107 5cedca1b 2004-05-15 devnull case WIDTH:
108 5cedca1b 2004-05-15 devnull w = ap->a_val.f;
110 5cedca1b 2004-05-15 devnull case WITH:
111 5cedca1b 2004-05-15 devnull with = ap->a_val.i; /* corner */
113 5cedca1b 2004-05-15 devnull case PLACE: /* actually with position ... */
114 5cedca1b 2004-05-15 devnull ppos = ap->a_val.o;
115 5cedca1b 2004-05-15 devnull xwith = cx - ppos->o_x;
116 5cedca1b 2004-05-15 devnull ywith = cy - ppos->o_y;
117 5cedca1b 2004-05-15 devnull with = PLACE;
119 5cedca1b 2004-05-15 devnull case AT:
120 5cedca1b 2004-05-15 devnull case FROM:
121 5cedca1b 2004-05-15 devnull ppos = ap->a_val.o;
122 5cedca1b 2004-05-15 devnull curx = ppos->o_x;
123 5cedca1b 2004-05-15 devnull cury = ppos->o_y;
126 5cedca1b 2004-05-15 devnull case INVIS:
127 5cedca1b 2004-05-15 devnull invis = INVIS;
129 5cedca1b 2004-05-15 devnull case TEXTATTR:
130 5cedca1b 2004-05-15 devnull savetext(ap->a_sub, ap->a_val.p);
134 5cedca1b 2004-05-15 devnull if (with) {
135 5cedca1b 2004-05-15 devnull switch (with) {
136 5cedca1b 2004-05-15 devnull case NORTH: ywith = -h / 2; break;
137 5cedca1b 2004-05-15 devnull case SOUTH: ywith = h / 2; break;
138 5cedca1b 2004-05-15 devnull case EAST: xwith = -w / 2; break;
139 5cedca1b 2004-05-15 devnull case WEST: xwith = w / 2; break;
140 5cedca1b 2004-05-15 devnull case NE: xwith = -w / 2; ywith = -h / 2; break;
141 5cedca1b 2004-05-15 devnull case SE: xwith = -w / 2; ywith = h / 2; break;
142 5cedca1b 2004-05-15 devnull case NW: xwith = w / 2; ywith = -h / 2; break;
143 5cedca1b 2004-05-15 devnull case SW: xwith = w / 2; ywith = h / 2; break;
145 5cedca1b 2004-05-15 devnull curx += xwith;
146 5cedca1b 2004-05-15 devnull cury += ywith;
148 5cedca1b 2004-05-15 devnull if (!at) {
149 5cedca1b 2004-05-15 devnull if (isright(hvmode))
150 5cedca1b 2004-05-15 devnull curx += w / 2;
151 5cedca1b 2004-05-15 devnull else if (isleft(hvmode))
152 5cedca1b 2004-05-15 devnull curx -= w / 2;
153 5cedca1b 2004-05-15 devnull else if (isup(hvmode))
154 5cedca1b 2004-05-15 devnull cury += h / 2;
156 5cedca1b 2004-05-15 devnull cury -= h / 2;
158 5cedca1b 2004-05-15 devnull x0 = curx - w / 2;
159 5cedca1b 2004-05-15 devnull y0 = cury - h / 2;
160 5cedca1b 2004-05-15 devnull x1 = curx + w / 2;
161 5cedca1b 2004-05-15 devnull y1 = cury + h / 2;
162 5cedca1b 2004-05-15 devnull extreme(x0, y0);
163 5cedca1b 2004-05-15 devnull extreme(x1, y1);
164 5cedca1b 2004-05-15 devnull p->o_x = curx;
165 5cedca1b 2004-05-15 devnull p->o_y = cury;
166 5cedca1b 2004-05-15 devnull p->o_nt1 = ntext1;
167 5cedca1b 2004-05-15 devnull p->o_nt2 = ntext;
168 5cedca1b 2004-05-15 devnull ntext1 = ntext;
169 5cedca1b 2004-05-15 devnull p->o_val[0] = w;
170 5cedca1b 2004-05-15 devnull p->o_val[1] = h;
171 5cedca1b 2004-05-15 devnull p->o_val[2] = cx;
172 5cedca1b 2004-05-15 devnull p->o_val[3] = cy;
173 5cedca1b 2004-05-15 devnull p->o_val[5] = q->o_nobj - 1; /* last item in [...] */
174 5cedca1b 2004-05-15 devnull p->o_ddval = ddval;
175 5cedca1b 2004-05-15 devnull p->o_attr = invis;
176 5cedca1b 2004-05-15 devnull dprintf("[] %g %g %g %g at %g %g, h=%g, w=%g\n", x0, y0, x1, y1, curx, cury, h, w);
177 5cedca1b 2004-05-15 devnull if (isright(hvmode))
178 5cedca1b 2004-05-15 devnull curx = x1;
179 5cedca1b 2004-05-15 devnull else if (isleft(hvmode))
180 5cedca1b 2004-05-15 devnull curx = x0;
181 5cedca1b 2004-05-15 devnull else if (isup(hvmode))
182 5cedca1b 2004-05-15 devnull cury = y1;
184 5cedca1b 2004-05-15 devnull cury = y0;
185 5cedca1b 2004-05-15 devnull for (i = 0; i <= 5; i++)
186 5cedca1b 2004-05-15 devnull q->o_val[i] = p->o_val[i];
187 5cedca1b 2004-05-15 devnull stack[nstack+1].p_symtab = NULL; /* so won't be found again */
188 5cedca1b 2004-05-15 devnull blockadj(p); /* fix up coords for enclosed blocks */
189 5cedca1b 2004-05-15 devnull return(p);
192 5cedca1b 2004-05-15 devnull void blockadj(obj *p) /* adjust coords in block starting at p */
194 5cedca1b 2004-05-15 devnull double dx, dy;
195 5cedca1b 2004-05-15 devnull int n, lev;
197 5cedca1b 2004-05-15 devnull dx = p->o_x - p->o_val[2];
198 5cedca1b 2004-05-15 devnull dy = p->o_y - p->o_val[3];
199 5cedca1b 2004-05-15 devnull n = p->o_nobj + 1;
200 5cedca1b 2004-05-15 devnull dprintf("into blockadj: dx,dy=%g,%g\n", dx, dy);
201 5cedca1b 2004-05-15 devnull for (lev = 1; lev > 0; n++) {
202 5cedca1b 2004-05-15 devnull p = objlist[n];
203 5cedca1b 2004-05-15 devnull if (p->o_type == BLOCK)
205 5cedca1b 2004-05-15 devnull else if (p->o_type == BLOCKEND)
207 5cedca1b 2004-05-15 devnull dprintf("blockadj: type=%d o_x,y=%g,%g;", p->o_type, p->o_x, p->o_y);
208 5cedca1b 2004-05-15 devnull p->o_x += dx;
209 5cedca1b 2004-05-15 devnull p->o_y += dy;
210 5cedca1b 2004-05-15 devnull dprintf(" becomes %g,%g\n", p->o_x, p->o_y);
211 5cedca1b 2004-05-15 devnull switch (p->o_type) { /* other absolute coords */
212 5cedca1b 2004-05-15 devnull case LINE:
213 5cedca1b 2004-05-15 devnull case ARROW:
214 5cedca1b 2004-05-15 devnull case SPLINE:
215 5cedca1b 2004-05-15 devnull p->o_val[0] += dx;
216 5cedca1b 2004-05-15 devnull p->o_val[1] += dy;
218 5cedca1b 2004-05-15 devnull case ARC:
219 5cedca1b 2004-05-15 devnull p->o_val[0] += dx;
220 5cedca1b 2004-05-15 devnull p->o_val[1] += dy;
221 5cedca1b 2004-05-15 devnull p->o_val[2] += dx;
222 5cedca1b 2004-05-15 devnull p->o_val[3] += dy;
