mirror of
https://github.com/9fans/plan9port.git
synced 2025-01-15 11:20:03 +00:00
115 lines
2.4 KiB
C
115 lines
2.4 KiB
C
#include <stdio.h>
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#include "pic.h"
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#include "y.tab.h"
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obj *textgen(void)
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{
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int i, sub, nstr, at, with, hset, invis;
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double xwith, ywith, h, w, x0, y0, x1, y1;
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obj *p, *ppos;
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static double prevh = 0;
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static double prevw = 0;
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Attr *ap;
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at = with = nstr = hset = invis = 0;
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h = getfval("textht");
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w = getfval("textwid");
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for (i = 0; i < nattr; i++) {
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ap = &attr[i];
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switch (ap->a_type) {
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case HEIGHT:
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h = ap->a_val.f;
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hset++;
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break;
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case WIDTH:
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w = ap->a_val.f;
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break;
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case WITH:
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with = ap->a_val.i;
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break;
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case INVIS:
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invis = INVIS;
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break;
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case AT:
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ppos = ap->a_val.o;
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curx = ppos->o_x;
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cury = ppos->o_y;
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at++;
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break;
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case TEXTATTR:
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sub = ap->a_sub;
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if (ap->a_val.p == NULL) /* an isolated modifier */
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text[ntext-1].t_type = sub;
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else {
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savetext(sub, ap->a_val.p);
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nstr++;
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}
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break;
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}
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}
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if (hset == 0) /* no explicit ht cmd */
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h *= nstr;
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if (with) {
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xwith = ywith = 0.0;
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switch (with) {
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case NORTH: ywith = -h / 2; break;
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case SOUTH: ywith = h / 2; break;
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case EAST: xwith = -w / 2; break;
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case WEST: xwith = w / 2; break;
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case NE: xwith = -w / 2; ywith = -h / 2; break;
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case SE: xwith = -w / 2; ywith = h / 2; break;
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case NW: xwith = w / 2; ywith = -h / 2; break;
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case SW: xwith = w / 2; ywith = h / 2; break;
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}
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curx += xwith;
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cury += ywith;
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}
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if (!at) {
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if (isright(hvmode))
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curx += w / 2;
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else if (isleft(hvmode))
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curx -= w / 2;
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else if (isup(hvmode))
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cury += h / 2;
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else
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cury -= h / 2;
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}
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x0 = curx - w / 2;
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y0 = cury - h / 2;
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x1 = curx + w / 2;
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y1 = cury + h / 2;
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extreme(x0, y0);
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extreme(x1, y1);
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dprintf("Text h %g w %g at %g,%g\n", h, w, curx, cury);
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p = makenode(TEXT, 2);
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p->o_attr = invis;
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p->o_val[0] = w;
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p->o_val[1] = h;
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if (isright(hvmode))
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curx = x1;
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else if (isleft(hvmode))
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curx = x0;
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else if (isup(hvmode))
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cury = y1;
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else
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cury = y0;
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prevh = h;
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prevw = w;
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return(p);
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}
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obj *troffgen(char *s) /* save away a string of troff commands */
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{
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savetext(CENTER, s); /* use the existing text mechanism */
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return makenode(TROFF, 0);
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}
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void savetext(int t, char *s) /* record text elements for current object */
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{
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if (ntext >= ntextlist)
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text = (Text *) grow((char *) text, "text", ntextlist += 200, sizeof(Text));
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text[ntext].t_type = t;
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text[ntext].t_val = s;
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dprintf("saving %d text %s at %d\n", t, s, ntext);
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ntext++;
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}
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