| 49 |
|
static unsigned long ourblack=0, ourwhite=1; |
| 50 |
|
|
| 51 |
|
static Display *ourdisplay = NULL; /* our display */ |
| 52 |
– |
|
| 52 |
|
static XVisualInfo ourvinfo; /* our visual information */ |
| 54 |
– |
|
| 53 |
|
static Window gwind = 0; /* our graphics window */ |
| 56 |
– |
|
| 54 |
|
static GC ourgc = 0; /* our graphics context for drawing */ |
| 58 |
– |
|
| 55 |
|
static Colormap ourmap = 0; /* our color map */ |
| 56 |
|
|
| 57 |
|
static double pwidth, pheight; /* pixel dimensions (mm) */ |
| 376 |
|
|
| 377 |
|
|
| 378 |
|
static |
| 379 |
+ |
ilclip(dp, wp) /* clip world coordinates to device */ |
| 380 |
+ |
int dp[2][2]; |
| 381 |
+ |
FVECT wp[2]; |
| 382 |
+ |
{ |
| 383 |
+ |
static FVECT vmin = {0.,0.,0.}, vmax = {1.,1.,FHUGE}; |
| 384 |
+ |
FVECT ip[2]; |
| 385 |
+ |
/* not exactly right, but who cares? */ |
| 386 |
+ |
viewloc(ip[0], &odev.v, wp[0]); |
| 387 |
+ |
viewloc(ip[1], &odev.v, wp[1]); |
| 388 |
+ |
if (!clip(ip[0], ip[1], vmin, vmax)) |
| 389 |
+ |
return(0); |
| 390 |
+ |
dp[0][0] = ip[0][0]*odev.hres; |
| 391 |
+ |
dp[0][1] = ip[0][1]*odev.vres; |
| 392 |
+ |
dp[1][0] = ip[1][0]*odev.hres; |
| 393 |
+ |
dp[1][1] = ip[1][1]*odev.vres; |
| 394 |
+ |
return(1); |
| 395 |
+ |
} |
| 396 |
+ |
|
| 397 |
+ |
|
| 398 |
+ |
static |
| 399 |
+ |
draw3dline(wp) /* draw 3d line in world coordinates */ |
| 400 |
+ |
FVECT wp[2]; |
| 401 |
+ |
{ |
| 402 |
+ |
int dp[2][2]; |
| 403 |
+ |
|
| 404 |
+ |
if (!ilclip(dp, wp)) |
| 405 |
+ |
return; |
| 406 |
+ |
XDrawLine(ourdisplay, gwind, ourgc, |
| 407 |
+ |
dp[0][0], odev.vres-1 - dp[0][1], |
| 408 |
+ |
dp[1][0], odev.vres-1 - dp[1][1]); |
| 409 |
+ |
} |
| 410 |
+ |
|
| 411 |
+ |
|
| 412 |
+ |
static |
| 413 |
+ |
draw_grids() /* draw holodeck section grids */ |
| 414 |
+ |
{ |
| 415 |
+ |
static BYTE gridrgb[3] = {0x0, 0xff, 0xff}; |
| 416 |
+ |
unsigned long pixel; |
| 417 |
+ |
|
| 418 |
+ |
if (!mapped || odev.v.type != VT_PER) |
| 419 |
+ |
return; |
| 420 |
+ |
if (ncolors > 0) |
| 421 |
+ |
pixel = pixval[get_pixel(gridrgb, xnewcolr)]; |
| 422 |
+ |
else |
| 423 |
+ |
pixel = true_pixel(gridrgb); |
| 424 |
+ |
XSetForeground(ourdisplay, ourgc, pixel); |
| 425 |
+ |
/* draw each grid line */ |
| 426 |
+ |
gridlines(draw3dline); |
| 427 |
+ |
} |
| 428 |
+ |
|
| 429 |
+ |
|
| 430 |
+ |
static |
| 431 |
|
moveview(dx, dy, move) /* move our view */ |
| 432 |
|
int dx, dy, move; |
| 433 |
|
{ |
| 480 |
|
unsigned int statemask; |
| 481 |
|
|
| 482 |
|
qtMinNodesiz = 16; /* for quicker update */ |
| 483 |
+ |
XNoOp(ourdisplay); |
| 484 |
|
|
| 485 |
< |
do { |
| 485 |
> |
while (!XCheckMaskEvent(ourdisplay, |
| 486 |
> |
ButtonReleaseMask, levptr(XEvent))) { |
| 487 |
> |
|
| 488 |
|
if (!XQueryPointer(ourdisplay, gwind, &rootw, &childw, |
| 489 |
|
&rootx, &rooty, &wx, &wy, &statemask)) |
| 490 |
|
break; /* on another screen */ |
| 491 |
|
|
| 492 |
< |
if (!moveview(wx, odev.vres-1-wy, MOVDIR(whichbutton))) |
| 492 |
> |
if (!moveview(wx, odev.vres-1-wy, MOVDIR(whichbutton))) { |
| 493 |
|
sleep(1); |
| 494 |
< |
else |
| 495 |
< |
qtUpdate(); |
| 496 |
< |
|
| 497 |
< |
} while (!XCheckMaskEvent(ourdisplay, |
| 498 |
< |
ButtonReleaseMask, levptr(XEvent))); |
| 499 |
< |
|
| 494 |
> |
continue; |
| 495 |
> |
} |
| 496 |
> |
XClearWindow(ourdisplay, gwind); |
| 497 |
> |
qtUpdate(); |
| 498 |
> |
draw_grids(); |
| 499 |
> |
} |
| 500 |
|
if (!(inpresflags & DEV_NEWVIEW)) { /* do final motion */ |
| 501 |
|
whichbutton = levptr(XButtonReleasedEvent)->button; |
| 502 |
|
wx = levptr(XButtonReleasedEvent)->x; |
| 503 |
|
wy = levptr(XButtonReleasedEvent)->y; |
| 504 |
|
moveview(wx, odev.vres-1-wy, MOVDIR(whichbutton)); |
| 454 |
– |
dev_flush(); |
| 505 |
|
} |
| 506 |
+ |
dev_flush(); |
| 507 |
|
|
| 508 |
|
qtMinNodesiz = oldnodesiz; /* restore quadtree resolution */ |
| 509 |
|
} |
| 549 |
|
if (inpresflags & DEV_REDRAW) |
| 550 |
|
return; |
| 551 |
|
XClearWindow(ourdisplay, gwind); |
| 552 |
+ |
draw_grids(); |
| 553 |
|
XFlush(ourdisplay); |
| 554 |
|
qtCompost(100); /* unload the old tree */ |
| 555 |
|
if (ncolors > 0) |
