int
Cam_int::zoom2(
CEvent &e,
State *&
)
{
if (debug_fsa)
cerr << "Cam_int::zoom2"
<< endl;
DEVice_2d *ptr = (DEVice_2d *)e._d;
CAMptr cam (e.view()->cam());
PIXEL curpt (ptr->cur());
XYpt startpt(_start_pix);
int w,h; e.view()->get_size(w,h);
double zoom_factor = 1 + Sign(ptr->delta()[0]) *
(PIXEL(ptr->cur())-PIXEL(ptr->old())).length()/(w/4);
cam->set_zoom(cam->zoom() * zoom_factor);
cam->set_min (cam->min() + NDCvec(XYpt(_start_pix) - startpt));
ptr->set_cur(curpt);
cam->data()->changed();
return 0;
}
int
Cam_int_edit::choose(
CEvent &e,
State *&s
)
{
DEVice_2d *ptr =(DEVice_2d *)e._d;
PIXEL te (ptr->cur());
XYvec delta(ptr->delta());
double tdelt(the_time() - _dtime);
_dist += sqrt(delta * delta);
VEXEL sdelt(te - _start_pix);
int xa=0,ya=1;
if (Config::get_var_bool("FLIP_CAM_MANIP",false,true))
swap(xa,ya);
if (fabs(sdelt[ya])/sdelt.length() > 0.9 && tdelt > 0.05) {
s = &_cam_zoom;
ptr->set_old(_start_pix);
} else if (tdelt < 0.1 && _dist < 0.03)
return 0;
else {
if (fabs(sdelt[xa])/sdelt.length() > 0.6 )
s = &_cam_pan;
else s = &_cam_zoom;
ptr->set_old(_start_pix);
}
/* if we got this far, we actually have a valid choice, so save the camera */ VIEWptr view(e.view());
view->save_cam();
return 0;
}