extern "C" void
normal_keydown_callback(unsigned char k, int x, int y)
{
GLUT_MANAGER *mgr = (GLUT_MANAGER *)FD_MANAGER::mgr(); assert(mgr);
// XXX - Just block events to the blocking window, or all windows?
// Rightnow, we only use one window, so this is academic...
if (mgr->get_blocker() == GLUT_WINSYS::window()) return;
static bool debug = Config::get_var_bool("JOT_DEBUG_KEY_CALLBACKS",false,true);
if (debug)
err_msg("key pressed: %d", int(k));
GLUT_KBD *kbd = GLUT_KBD::kbd();
int w, h;
kbd->winsys()->size(w, h);
VIEWptr view = GLUT_WINSYS::window()->view();
VIEWint_list::get(view)->handle_event(Evd(k));
CXYpt curs(PIXEL(x, (double) h - y));
kbd->update_mods(curs);
}
extern "C" void
normal_keyup_callback(unsigned char k, int x, int y)
{
GLUT_MANAGER *mgr = (GLUT_MANAGER *)FD_MANAGER::mgr(); assert(mgr);
// XXX - Just block events to the blocking window, or all windows?
// Rightnow, we only use one window, so this is academic...
if (mgr->get_blocker() == GLUT_WINSYS::window()) return;
GLUT_KBD *kbd = GLUT_KBD::kbd();
VIEWptr view = GLUT_WINSYS::window()->view();
VIEWint_list::get(view)->handle_event(Evd(k,KEYU));
int w, h;
kbd->winsys()->size(w, h);
CXYpt curs(PIXEL(x, (double) h - y));
kbd->update_mods(curs);
}
RAYhit &
LINE3D::intersect(
RAYhit &ray,
CWtransf&,
int
) const
{
// Find the intersection point, its distance, and some kind of normal
double distance = -1, d_2d = -1;
Wvec surf_norm;
Wpt nearpt;
for (int i=0; i<num()-1; i++) {
// Find the nearest point on the ray to the segment.
Wpt ray_pt = ray.line().intersect(Wline(point(i), point(i+1)));
// Accept only if ray_pt is in front of the ray
if ((ray_pt - ray.point()) * ray.vec() > 0 ) {
// Ok if the ray passes within 10 pixels of the segment
const double PIX_THRESH = 10.0;
Wpt hit_pt = nearest_pt_to_line_seg(ray_pt, point(i), point(i+1));
double screen_dist = PIXEL(hit_pt).dist(ray_pt);
if ((screen_dist < PIX_THRESH) && (d_2d < 0 || screen_dist < d_2d)) {
d_2d = screen_dist;
distance = ray.point().dist(ray_pt);
nearpt = hit_pt;
// XXX - What should be the "normal"? For now,
// just the vector pointing back to the camera.
surf_norm = -ray.vec().normalized();
}
}
}
// Then call ray.check() passing it all this stuff
if (distance >= 0)
ray.check(distance, 1, 0, (GEL*)this, surf_norm, nearpt, nearpt,
0, XYpt());
return ray;
}
