| 640 |
|
) |
| 641 |
|
{ |
| 642 |
|
int startx = ebut->x, starty = ebut->y; |
| 643 |
< |
int endx, endy; |
| 644 |
< |
|
| 643 |
> |
int endx, endy, midx, midy; |
| 644 |
> |
FVECT v1; |
| 645 |
> |
int li; |
| 646 |
> |
/* get mouse drag */ |
| 647 |
|
XMaskEvent(ourdisplay, ButtonReleaseMask, levptr(XEvent)); |
| 648 |
|
endx = levptr(XButtonReleasedEvent)->x; |
| 649 |
|
endy = levptr(XButtonReleasedEvent)->y; |
| 650 |
< |
if ((endx == startx) | (endy == starty)) { |
| 651 |
< |
XBell(ourdisplay, 0); |
| 650 |
> |
midx = (startx + endx) >> 1; |
| 651 |
> |
midy = (starty + endy) >> 1; |
| 652 |
> |
/* set focus distance */ |
| 653 |
> |
if ((li = qtFindLeaf(midx, midy)) < 0) |
| 654 |
> |
return(0); /* not on window */ |
| 655 |
> |
VCOPY(v1, qtL.wp[li]); |
| 656 |
> |
odev.v.vdist = sqrt(dist2(odev.v.vp, v1)); |
| 657 |
> |
/* set frame for rendering */ |
| 658 |
> |
if ((endx == startx) | (endy == starty)) |
| 659 |
|
return; |
| 651 |
– |
} |
| 660 |
|
if (endx < startx) {register int c = endx; endx = startx; startx = c;} |
| 661 |
|
if (endy < starty) {register int c = endy; endy = starty; starty = c;} |
| 662 |
|
sprintf(odev_args, "%.3f %.3f %.3f %.3f", |
