int viewglut_point(viewglut *P, int x, int y)
{
double v[3];
assert(P);
/* Convert the mouse position to a pointer vector. */
pointer(P, x, y, (P->state == st_zoom), v);
/* Apply the new pointer vector. */
switch (P->state)
{
case st_look:
view_look(P->V, v);
break;
case st_roll:
view_roll(P->V, v);
break;
case st_zoom:
view_zoom(P->V, v);
break;
default:
return 0;
}
glutPostRedisplay();
return 1;
}
static Bool compositor_handle_navigation_3d(GF_Compositor *compositor, GF_Event *ev)
{
Fixed x, y, trans_scale;
Fixed dx, dy, key_trans, key_pan, key_exam;
s32 key_inv;
u32 keys;
#ifdef SCALE_NAV
Bool is_pixel_metrics;
#endif
GF_Camera *cam;
Fixed zoom = compositor->zoom;
cam = NULL;
#ifndef GPAC_DISABLE_VRML
if (compositor->active_layer) {
cam = compositor_layer3d_get_camera(compositor->active_layer);
#ifdef SCALE_NAV
is_pixel_metrics = gf_sg_use_pixel_metrics(gf_node_get_graph(compositor->active_layer));
#endif
}
#endif
if (!cam) {
cam = &compositor->visual->camera;
assert(compositor);
assert(compositor->scene);
#ifdef SCALE_NAV
is_pixel_metrics = compositor->traverse_state->pixel_metrics;
#endif
}
if (!cam || (cam->navigate_mode==GF_NAVIGATE_NONE)) return 0;
keys = compositor->key_states;
if (!cam->navigate_mode && !(keys & GF_KEY_MOD_ALT) ) return 0;
x = y = 0;
/*renorm between -1, 1*/
if (ev->type<=GF_EVENT_MOUSEWHEEL) {
x = gf_divfix( INT2FIX(ev->mouse.x - (s32) compositor->visual->width/2), INT2FIX(compositor->visual->width));
y = gf_divfix( INT2FIX(ev->mouse.y - (s32) compositor->visual->height/2), INT2FIX(compositor->visual->height));
}
dx = (x - compositor->grab_x);
dy = (compositor->grab_y - y);
#ifdef SCALE_NAV
trans_scale = is_pixel_metrics ? cam->width/2 : INT2FIX(10);
key_trans = is_pixel_metrics ? INT2FIX(10) : cam->avatar_size.x;
#else
trans_scale = cam->width/20;
key_trans = cam->avatar_size.x/2;
//if default VP is quite far from center use larger dz/dy moves
if (cam->vp_dist>100) trans_scale *= 10;
#endif
if (cam->world_bbox.is_set && (key_trans*5 > cam->world_bbox.radius)) {
key_trans = cam->world_bbox.radius / 100;
}
key_pan = FIX_ONE/25;
key_exam = FIX_ONE/20;
key_inv = 1;
if (keys & GF_KEY_MOD_SHIFT) {
dx *= 4;
dy *= 4;
key_pan *= 4;
key_exam *= 4;
key_trans*=4;
}
switch (ev->type) {
case GF_EVENT_MOUSEDOWN:
/*left*/
if (ev->mouse.button==GF_MOUSE_LEFT) {
compositor->grab_x = x;
compositor->grab_y = y;
compositor->navigation_state = 1;
/*change vp and examine center to current location*/
if ((keys & GF_KEY_MOD_CTRL) && compositor->hit_square_dist) {
cam->vp_position = cam->position;
cam->vp_orientation = camera_get_orientation(cam->position, cam->target, cam->up);
cam->vp_fov = cam->fieldOfView;
cam->examine_center = compositor->hit_world_point;
camera_changed(compositor, cam);
return 1;
}
}
/*right*/
else if (ev->mouse.button==GF_MOUSE_RIGHT) {
if (compositor->navigation_state && (cam->navigate_mode==GF_NAVIGATE_WALK)) {
camera_jump(cam);
gf_sc_invalidate(compositor, NULL);
return 1;
}
else if (keys & GF_KEY_MOD_CTRL) gf_sc_fit_world_to_screen(compositor);
}
break;
/* note: shortcuts are mostly the same as blaxxun contact, I don't feel like remembering 2 sets...*/
case GF_EVENT_MOUSEMOVE:
if (!compositor->navigation_state) {
if (cam->navigate_mode==GF_NAVIGATE_GAME) {
/*init mode*/
compositor->grab_x = x;
compositor->grab_y = y;
compositor->navigation_state = 1;
}
return 0;
}
compositor->navigation_state++;
switch (cam->navigate_mode) {
/*FIXME- we'll likely need a "step" value for walk at some point*/
case GF_NAVIGATE_WALK:
case GF_NAVIGATE_FLY:
view_pan_x(compositor, cam, -dx);
if (keys & GF_KEY_MOD_CTRL) view_pan_y(compositor, cam, dy);
else view_translate_z(compositor, cam, gf_mulfix(dy, trans_scale));
break;
case GF_NAVIGATE_VR:
view_pan_x(compositor, cam, -dx);
if (keys & GF_KEY_MOD_CTRL) view_zoom(compositor, cam, dy);
else view_pan_y(compositor, cam, dy);
break;
case GF_NAVIGATE_PAN:
view_pan_x(compositor, cam, -dx);
if (keys & GF_KEY_MOD_CTRL) view_translate_z(compositor, cam, gf_mulfix(dy, trans_scale));
else view_pan_y(compositor, cam, dy);
break;
case GF_NAVIGATE_SLIDE:
view_translate_x(compositor, cam, gf_mulfix(dx, trans_scale));
if (keys & GF_KEY_MOD_CTRL) view_translate_z(compositor, cam, gf_mulfix(dy, trans_scale));
else view_translate_y(compositor, cam, gf_mulfix(dy, trans_scale));
break;
case GF_NAVIGATE_EXAMINE:
if (keys & GF_KEY_MOD_CTRL) {
view_translate_z(compositor, cam, gf_mulfix(dy, trans_scale));
view_roll(compositor, cam, gf_mulfix(dx, trans_scale));
} else {
if (ABS(dx) > ABS(dy)) {
view_exam_x(compositor, cam, -gf_mulfix(GF_PI, dx));
} else {
view_exam_y(compositor, cam, gf_mulfix(GF_PI, dy));
}
}
break;
case GF_NAVIGATE_ORBIT:
if (keys & GF_KEY_MOD_CTRL) {
view_translate_z(compositor, cam, gf_mulfix(dy, trans_scale));
} else {
view_orbit_x(compositor, cam, -gf_mulfix(GF_PI, dx));
view_orbit_y(compositor, cam, gf_mulfix(GF_PI, dy));
}
break;
case GF_NAVIGATE_GAME:
view_pan_x(compositor, cam, -dx);
view_pan_y(compositor, cam, dy);
break;
}
compositor->grab_x = x;
compositor->grab_y = y;
return 1;
case GF_EVENT_MOUSEWHEEL:
switch (cam->navigate_mode) {
/*FIXME- we'll likely need a "step" value for walk at some point*/
case GF_NAVIGATE_WALK:
case GF_NAVIGATE_FLY:
view_pan_y(compositor, cam, gf_mulfix(key_pan, ev->mouse.wheel_pos));
break;
case GF_NAVIGATE_VR:
view_zoom(compositor, cam, gf_mulfix(key_pan, ev->mouse.wheel_pos));
break;
case GF_NAVIGATE_SLIDE:
case GF_NAVIGATE_EXAMINE:
case GF_NAVIGATE_ORBIT:
case GF_NAVIGATE_PAN:
if (cam->is_3D) {
view_translate_z(compositor, cam, gf_mulfix(trans_scale, ev->mouse.wheel_pos) * ((keys & GF_KEY_MOD_SHIFT) ? 4 : 1));
} else {
nav_set_zoom_trans_2d(compositor->visual, zoom + INT2FIX(ev->mouse.wheel_pos)/10, 0, 0);
}
}
return 1;
case GF_EVENT_MOUSEUP:
if (ev->mouse.button==GF_MOUSE_LEFT) compositor->navigation_state = 0;
break;
case GF_EVENT_KEYDOWN:
switch (ev->key.key_code) {
case GF_KEY_BACKSPACE:
gf_sc_reset_graphics(compositor);
return 1;
case GF_KEY_C:
compositor->collide_mode = compositor->collide_mode ? GF_COLLISION_NONE : GF_COLLISION_DISPLACEMENT;
return 1;
case GF_KEY_J:
if (cam->navigate_mode==GF_NAVIGATE_WALK) {
camera_jump(cam);
gf_sc_invalidate(compositor, NULL);
return 1;
}
break;
case GF_KEY_HOME:
if (!compositor->navigation_state) {
compositor->visual->camera.start_zoom = compositor->zoom;
compositor->zoom = FIX_ONE;
compositor->interoccular_offset = 0;
compositor->focus_distance = 0;
compositor->interoccular_offset = 0;
compositor->focus_distance = 0;
compositor_3d_reset_camera(compositor);
}
break;
case GF_KEY_END:
if (cam->navigate_mode==GF_NAVIGATE_GAME) {
cam->navigate_mode = GF_NAVIGATE_WALK;
compositor->navigation_state = 0;
return 1;
}
break;
case GF_KEY_LEFT:
key_inv = -1;
case GF_KEY_RIGHT:
if (keys & GF_KEY_MOD_ALT) {
if ( (keys & GF_KEY_MOD_SHIFT) && (compositor->visual->nb_views > 1) ) {
/*+ or - 10 cm*/
compositor->focus_distance += INT2FIX(key_inv);
cam->flags |= CAM_IS_DIRTY;
fprintf(stderr, "AutoStereo view distance %f - focus %f\n", FIX2FLT(compositor->video_out->view_distance)/100, FIX2FLT(compositor->focus_distance)/100);
gf_sc_invalidate(compositor, NULL);
return 1;
}
return 0;
}
switch (cam->navigate_mode) {
case GF_NAVIGATE_SLIDE:
if (keys & GF_KEY_MOD_CTRL) view_pan_x(compositor, cam, key_inv * key_pan);
else view_translate_x(compositor, cam, key_inv * key_trans);
break;
case GF_NAVIGATE_EXAMINE:
if (keys & GF_KEY_MOD_CTRL) view_roll(compositor, cam, gf_mulfix(dx, trans_scale));
else view_exam_x(compositor, cam, -key_inv * key_exam);
break;
case GF_NAVIGATE_ORBIT:
if (keys & GF_KEY_MOD_CTRL) view_translate_x(compositor, cam, key_inv * key_trans);
else view_orbit_x(compositor, cam, -key_inv * key_exam);
break;
case GF_NAVIGATE_GAME:
view_translate_x(compositor, cam, key_inv * key_trans);
break;
case GF_NAVIGATE_VR:
view_pan_x(compositor, cam, -key_inv * key_pan);
break;
/*walk/fly/pan*/
default:
if (keys & GF_KEY_MOD_CTRL) view_translate_x(compositor, cam, key_inv * key_trans);
else view_pan_x(compositor, cam, -key_inv * key_pan);
break;
}
return 1;
case GF_KEY_DOWN:
key_inv = -1;
case GF_KEY_UP:
if (keys & GF_KEY_MOD_ALT) {
if ( (keys & GF_KEY_MOD_SHIFT) && (compositor->visual->nb_views > 1) ) {
compositor->interoccular_offset += FLT2FIX(0.5) * key_inv;
fprintf(stderr, "AutoStereo interoccular distance %f\n", FIX2FLT(compositor->interoccular_distance + compositor->interoccular_offset));
cam->flags |= CAM_IS_DIRTY;
gf_sc_invalidate(compositor, NULL);
return 1;
}
return 0;
}
switch (cam->navigate_mode) {
case GF_NAVIGATE_SLIDE:
if (keys & GF_KEY_MOD_CTRL) view_translate_z(compositor, cam, key_inv * key_trans);
else view_translate_y(compositor, cam, key_inv * key_trans);
break;
case GF_NAVIGATE_EXAMINE:
if (keys & GF_KEY_MOD_CTRL) view_translate_z(compositor, cam, key_inv * key_trans);
else view_exam_y(compositor, cam, -key_inv * key_exam);
break;
case GF_NAVIGATE_ORBIT:
if (keys & GF_KEY_MOD_CTRL) view_translate_y(compositor, cam, key_inv * key_trans);
else view_orbit_y(compositor, cam, -key_inv * key_exam);
break;
case GF_NAVIGATE_PAN:
if (keys & GF_KEY_MOD_CTRL) view_translate_y(compositor, cam, key_inv * key_trans);
else view_pan_y(compositor, cam, key_inv * key_pan);
break;
case GF_NAVIGATE_GAME:
view_translate_z(compositor, cam, key_inv * key_trans);
break;
case GF_NAVIGATE_VR:
if (keys & GF_KEY_MOD_CTRL) view_zoom(compositor, cam, key_inv * key_pan);
else view_pan_y(compositor, cam, key_inv * key_pan);
break;
/*walk/fly*/
default:
if (keys & GF_KEY_MOD_CTRL) view_pan_y(compositor, cam, key_inv * key_pan);
else view_translate_z(compositor, cam, key_inv * key_trans);
break;
}
return 1;
case GF_KEY_PAGEDOWN:
if (keys & GF_KEY_MOD_CTRL) {
view_zoom(compositor, cam, FIX_ONE/10);
return 1;
}
break;
case GF_KEY_PAGEUP:
if (keys & GF_KEY_MOD_CTRL) {
view_zoom(compositor, cam, -FIX_ONE/10);
return 1;
}
break;
}
break;
}
return 0;
}
