22 |
|
#define FEQ(a,b) ((a)-(b) <= FTINY && (a)-(b) >= -FTINY) |
23 |
|
#endif |
24 |
|
|
25 |
– |
#define CTRL(c) ((c)-'@') |
26 |
– |
|
25 |
|
#define GAMMA 2.2 /* default gamma correction */ |
26 |
|
|
27 |
< |
#define MOVPCT 10 /* percent distance to move */ |
27 |
> |
#define MOVPCT 7 /* percent distance to move /frame */ |
28 |
|
#define MOVDIR(b) ((b)==Button1 ? 1 : (b)==Button2 ? 0 : -1) |
29 |
+ |
#define MOVDEG (-5) /* degrees to orbit CW/down /frame */ |
30 |
+ |
#define MOVORB(s) ((s)&ShiftMask ? 1 : (s)&ControlMask ? -1 : 0) |
31 |
|
|
32 |
|
#define MINWIDTH 480 /* minimum graphics window width */ |
33 |
|
#define MINHEIGHT 400 /* minimum graphics window height */ |
158 |
|
oursizhints.min_height = MINHEIGHT; |
159 |
|
oursizhints.flags = PMinSize; |
160 |
|
XSetNormalHints(ourdisplay, gwind, &oursizhints); |
161 |
+ |
/* figure out sensible view */ |
162 |
+ |
pwidth = (double)DisplayWidthMM(ourdisplay, ourscreen) / |
163 |
+ |
DisplayWidth(ourdisplay, ourscreen); |
164 |
+ |
pheight = (double)DisplayHeightMM(ourdisplay, ourscreen) / |
165 |
+ |
DisplayHeight(ourdisplay, ourscreen); |
166 |
+ |
copystruct(&odev.v, &stdview); |
167 |
+ |
odev.v.type = VT_PER; |
168 |
|
/* map the window and get its size */ |
169 |
|
XMapWindow(ourdisplay, gwind); |
170 |
< |
dev_input(); |
170 |
> |
dev_input(); /* sets size and view angles */ |
171 |
|
/* allocate our leaf pile */ |
172 |
|
if (!qtAllocLeaves(DisplayWidth(ourdisplay,ourscreen) * |
173 |
|
DisplayHeight(ourdisplay,ourscreen) / |
174 |
|
(qtMinNodesiz*qtMinNodesiz))) |
175 |
|
error(SYSTEM, "insufficient memory for leaf storage"); |
169 |
– |
|
170 |
– |
/* figure out sensible view */ |
171 |
– |
pwidth = (double)DisplayWidthMM(ourdisplay, ourscreen) / |
172 |
– |
DisplayWidth(ourdisplay, ourscreen); |
173 |
– |
pheight = (double)DisplayHeightMM(ourdisplay, ourscreen) / |
174 |
– |
DisplayHeight(ourdisplay, ourscreen); |
175 |
– |
copystruct(&odev.v, &stdview); |
176 |
|
odev.name = id; |
177 |
– |
odev.v.type = VT_PER; |
178 |
– |
odev.v.horiz = 2.*180./PI * atan(0.5/VIEWDIST*pwidth*odev.hres); |
179 |
– |
odev.v.vert = 2.*180./PI * atan(0.5/VIEWDIST*pheight*odev.vres); |
177 |
|
odev.ifd = ConnectionNumber(ourdisplay); |
178 |
|
} |
179 |
|
|
195 |
|
} |
196 |
|
|
197 |
|
|
198 |
+ |
int |
199 |
|
dev_view(nv) /* assign new driver view */ |
200 |
|
VIEW *nv; |
201 |
|
{ |
202 |
+ |
if (nv->type == VT_PAR || /* check view legality */ |
203 |
+ |
nv->horiz > 160. || nv->vert > 160.) { |
204 |
+ |
error(COMMAND, "illegal view type/angle"); |
205 |
+ |
nv->type = VT_PER; |
206 |
+ |
nv->horiz = odev.v.horiz; |
207 |
+ |
nv->vert = odev.v.vert; |
208 |
+ |
return(0); |
209 |
+ |
} |
210 |
+ |
if (nv->vfore > FTINY) { |
211 |
+ |
error(COMMAND, "cannot handle fore clipping"); |
212 |
+ |
nv->vfore = 0.; |
213 |
+ |
return(0); |
214 |
+ |
} |
215 |
|
if (nv != &odev.v) { |
216 |
|
if (!FEQ(nv->horiz,odev.v.horiz) || /* resize window? */ |
217 |
|
!FEQ(nv->vert,odev.v.vert)) { |
218 |
< |
odev.hres = 2.*VIEWDIST*tan(PI/180./2.*nv->horiz) / |
219 |
< |
pwidth; |
220 |
< |
odev.vres = 2.*VIEWDIST*tan(PI/180./2.*nv->vert) / |
221 |
< |
pheight; |
218 |
> |
int dw = DisplayWidth(ourdisplay,ourscreen); |
219 |
> |
int dh = DisplayHeight(ourdisplay,ourscreen); |
220 |
> |
|
221 |
> |
dw -= 25; /* for window frame */ |
222 |
> |
dh -= 50; |
223 |
> |
odev.hres = 2.*VIEWDIST/pwidth * |
224 |
> |
tan(PI/180./2.*nv->horiz); |
225 |
> |
odev.vres = 2.*VIEWDIST/pheight * |
226 |
> |
tan(PI/180./2.*nv->vert); |
227 |
> |
if (odev.hres > dw) { |
228 |
> |
odev.vres = dw * odev.vres / odev.hres; |
229 |
> |
odev.hres = dw; |
230 |
> |
} |
231 |
> |
if (odev.vres > dh) { |
232 |
> |
odev.hres = dh * odev.hres / odev.vres; |
233 |
> |
odev.vres = dh; |
234 |
> |
} |
235 |
|
XResizeWindow(ourdisplay, gwind, odev.hres, odev.vres); |
236 |
+ |
dev_input(); /* wait for resize event */ |
237 |
|
} |
238 |
|
copystruct(&odev.v, nv); |
239 |
|
} |
240 |
|
qtReplant(); |
241 |
+ |
return(1); |
242 |
|
} |
243 |
|
|
244 |
|
|
466 |
|
|
467 |
|
|
468 |
|
static |
469 |
< |
moveview(dx, dy, move) /* move our view */ |
470 |
< |
int dx, dy, move; |
469 |
> |
moveview(dx, dy, mov, orb) /* move our view */ |
470 |
> |
int dx, dy, mov, orb; |
471 |
|
{ |
472 |
|
VIEW nv; |
473 |
+ |
FVECT odir, v1; |
474 |
|
double d; |
475 |
< |
register int i, li; |
475 |
> |
register int li; |
476 |
|
/* start with old view */ |
477 |
|
copystruct(&nv, &odev.v); |
478 |
|
/* change view direction */ |
479 |
< |
if (move) { |
479 |
> |
if (mov | orb) { |
480 |
|
if ((li = qtFindLeaf(dx, dy)) < 0) |
481 |
|
return(0); /* not on window */ |
482 |
< |
for (i = 0; i < 3; i++) |
456 |
< |
nv.vdir[i] = qtL.wp[li][i] - nv.vp[i]; |
482 |
> |
VSUM(odir, qtL.wp[li], nv.vp, -1.); |
483 |
|
} else { |
484 |
|
if (viewray(nv.vp, nv.vdir, &odev.v, |
485 |
|
(dx+.5)/odev.hres, (dy+.5)/odev.vres) < -FTINY) |
486 |
|
return(0); /* outside view */ |
487 |
|
} |
488 |
< |
/* move viewpoint */ |
489 |
< |
if (move > 0) |
490 |
< |
for (i = 0; i < 3; i++) |
491 |
< |
nv.vp[i] += MOVPCT/100. * nv.vdir[i]; |
492 |
< |
else if (move < 0) |
493 |
< |
for (i = 0; i < 3; i++) |
494 |
< |
nv.vp[i] -= MOVPCT/100. * nv.vdir[i]; |
495 |
< |
if (move && headlocked) { |
496 |
< |
d = 0; /* bring head back to same height */ |
497 |
< |
for (i = 0; i < 3; i++) |
498 |
< |
d += odev.v.vup[i] * (odev.v.vp[i] - nv.vp[i]); |
499 |
< |
for (i = 0; i < 3; i++) |
500 |
< |
nv.vp[i] += d * odev.v.vup[i]; |
488 |
> |
if (orb && mov) { /* orbit left/right */ |
489 |
> |
spinvector(odir, odir, nv.vup, d=MOVDEG*PI/180.*mov); |
490 |
> |
VSUM(nv.vp, qtL.wp[li], odir, -1.); |
491 |
> |
spinvector(nv.vdir, nv.vdir, nv.vup, d); |
492 |
> |
} else if (orb) { /* orbit up/down */ |
493 |
> |
fcross(v1, odir, nv.vup); |
494 |
> |
if (normalize(v1) == 0.) |
495 |
> |
return(0); |
496 |
> |
spinvector(odir, odir, v1, d=MOVDEG*PI/180.*orb); |
497 |
> |
VSUM(nv.vp, qtL.wp[li], odir, -1.); |
498 |
> |
spinvector(nv.vdir, nv.vdir, v1, d); |
499 |
> |
} else if (mov) { /* move forward/backward */ |
500 |
> |
d = MOVPCT/100. * mov; |
501 |
> |
VSUM(nv.vp, nv.vp, odir, d); |
502 |
|
} |
503 |
+ |
if (!mov ^ !orb && headlocked) { /* restore head height */ |
504 |
+ |
VSUM(v1, odev.v.vp, nv.vp, -1.); |
505 |
+ |
d = DOT(v1, odev.v.vup); |
506 |
+ |
VSUM(nv.vp, nv.vp, odev.v.vup, d); |
507 |
+ |
} |
508 |
|
if (setview(&nv) != NULL) |
509 |
|
return(0); /* illegal view */ |
510 |
|
dev_view(&nv); |
511 |
< |
inpresflags |= DEV_NEWVIEW; |
511 |
> |
inpresflags |= DFL(DC_SETVIEW); |
512 |
|
return(1); |
513 |
|
} |
514 |
|
|
517 |
|
getmove(ebut) /* get view change */ |
518 |
|
XButtonPressedEvent *ebut; |
519 |
|
{ |
520 |
< |
int whichbutton = ebut->button; |
520 |
> |
int movdir = MOVDIR(ebut->button); |
521 |
> |
int movorb = MOVORB(ebut->state); |
522 |
|
int oldnodesiz = qtMinNodesiz; |
523 |
|
Window rootw, childw; |
524 |
|
int rootx, rooty, wx, wy; |
534 |
|
&rootx, &rooty, &wx, &wy, &statemask)) |
535 |
|
break; /* on another screen */ |
536 |
|
|
537 |
< |
if (!moveview(wx, odev.vres-1-wy, MOVDIR(whichbutton))) { |
537 |
> |
if (!moveview(wx, odev.vres-1-wy, movdir, movorb)) { |
538 |
|
sleep(1); |
539 |
|
continue; |
540 |
|
} |
542 |
|
qtUpdate(); |
543 |
|
draw_grids(); |
544 |
|
} |
545 |
< |
if (!(inpresflags & DEV_NEWVIEW)) { /* do final motion */ |
546 |
< |
whichbutton = levptr(XButtonReleasedEvent)->button; |
545 |
> |
if (!(inpresflags & DFL(DC_SETVIEW))) { /* do final motion */ |
546 |
> |
movdir = MOVDIR(levptr(XButtonReleasedEvent)->button); |
547 |
|
wx = levptr(XButtonReleasedEvent)->x; |
548 |
|
wy = levptr(XButtonReleasedEvent)->y; |
549 |
< |
moveview(wx, odev.vres-1-wy, MOVDIR(whichbutton)); |
549 |
> |
moveview(wx, odev.vres-1-wy, movdir, movorb); |
550 |
|
} |
551 |
|
dev_flush(); |
552 |
|
|
571 |
|
case 'H': /* turn off height motion lock */ |
572 |
|
headlocked = 0; |
573 |
|
return; |
574 |
< |
case CTRL('S'): |
574 |
> |
case 'l': /* retrieve last view */ |
575 |
> |
inpresflags |= DFL(DC_LASTVIEW); |
576 |
> |
return; |
577 |
|
case 'p': /* pause computation */ |
578 |
< |
inpresflags |= DEV_WAIT; |
578 |
> |
inpresflags |= DFL(DC_PAUSE); |
579 |
|
return; |
580 |
|
case 'v': /* spit out view */ |
581 |
< |
inpresflags |= DEV_PUTVIEW; |
581 |
> |
inpresflags |= DFL(DC_GETVIEW); |
582 |
|
return; |
548 |
– |
case CTRL('Q'): |
583 |
|
case '\n': |
584 |
|
case '\r': /* resume computation */ |
585 |
< |
inpresflags |= DEV_RESUME; |
585 |
> |
inpresflags |= DFL(DC_RESUME); |
586 |
|
return; |
587 |
|
case CTRL('R'): /* redraw screen */ |
588 |
|
if (ncolors > 0) |
590 |
|
qtRedraw(0, 0, odev.hres, odev.vres); |
591 |
|
return; |
592 |
|
case CTRL('L'): /* refresh from server */ |
593 |
< |
if (inpresflags & DEV_REDRAW) |
593 |
> |
if (inpresflags & DFL(DC_REDRAW)) |
594 |
|
return; |
595 |
|
XClearWindow(ourdisplay, gwind); |
596 |
|
draw_grids(); |
598 |
|
qtCompost(100); /* unload the old tree */ |
599 |
|
if (ncolors > 0) |
600 |
|
new_ctab(ncolors); |
601 |
< |
inpresflags |= DEV_REDRAW; /* resend values from server */ |
601 |
> |
inpresflags |= DFL(DC_REDRAW); /* resend values from server */ |
602 |
|
return; |
603 |
< |
case CTRL('D'): |
604 |
< |
case 'Q': |
603 |
> |
case 'K': /* kill rtrace process(es) */ |
604 |
> |
inpresflags |= DFL(DC_KILL); |
605 |
> |
break; |
606 |
> |
case 'R': /* restart rtrace */ |
607 |
> |
inpresflags |= DFL(DC_RESTART); |
608 |
> |
break; |
609 |
> |
case 'C': /* clobber holodeck */ |
610 |
> |
inpresflags |= DFL(DC_CLOBBER); |
611 |
> |
break; |
612 |
|
case 'q': /* quit the program */ |
613 |
< |
inpresflags |= DEV_SHUTDOWN; |
613 |
> |
inpresflags |= DFL(DC_QUIT); |
614 |
|
return; |
615 |
|
default: |
616 |
|
XBell(ourdisplay, 0); |
626 |
|
if (odev.hres == 0 || odev.vres == 0) { /* first exposure */ |
627 |
|
odev.hres = eexp->width; |
628 |
|
odev.vres = eexp->height; |
588 |
– |
inpresflags |= DEV_NEWSIZE; |
629 |
|
} |
630 |
|
qtRedraw(eexp->x, odev.vres - eexp->y - eexp->height, |
631 |
|
eexp->x + eexp->width, odev.vres - eexp->y); |
639 |
|
if (ersz->width == odev.hres && ersz->height == odev.vres) |
640 |
|
return; |
641 |
|
|
602 |
– |
if (odev.hres != 0 && odev.vres != 0) { |
603 |
– |
odev.v.horiz = 2.*180./PI * atan(0.5/VIEWDIST*pwidth*odev.hres); |
604 |
– |
odev.v.vert = 2.*180./PI * atan(0.5/VIEWDIST*pheight*odev.vres); |
605 |
– |
inpresflags |= DEV_NEWVIEW; |
606 |
– |
} |
642 |
|
odev.hres = ersz->width; |
643 |
|
odev.vres = ersz->height; |
644 |
|
|
645 |
< |
inpresflags |= DEV_NEWSIZE; |
645 |
> |
odev.v.horiz = 2.*180./PI * atan(0.5/VIEWDIST*pwidth*odev.hres); |
646 |
> |
odev.v.vert = 2.*180./PI * atan(0.5/VIEWDIST*pheight*odev.vres); |
647 |
> |
|
648 |
> |
inpresflags |= DFL(DC_SETVIEW); |
649 |
|
} |