static void OnPlaneSensor(SensorHandler *sh, Bool is_over, GF_Event *ev, RayHitInfo *hit_info)
{
M_PlaneSensor *ps = (M_PlaneSensor *)sh->owner;
PSStack *stack = (PSStack *) gf_node_get_private(sh->owner);
if (ps->isActive && (!ps->enabled || ((ev->type==GF_EVENT_MOUSEUP) && (ev->mouse.button==GF_MOUSE_LEFT)) )) {
if (ps->autoOffset) {
ps->offset = ps->translation_changed;
gf_node_event_out_str(sh->owner, "offset");
}
ps->isActive = 0;
gf_node_event_out_str(sh->owner, "isActive");
R3D_SetGrabbed(stack->compositor, 0);
}
else if (!ps->isActive && (ev->type==GF_EVENT_MOUSEDOWN) && (ev->mouse.button==GF_MOUSE_LEFT)) {
gf_mx_copy(stack->initial_matrix, hit_info->local_to_world);
gf_vec_diff(stack->start_drag, hit_info->local_point, ps->offset);
stack->tracker.normal.x = stack->tracker.normal.y = 0; stack->tracker.normal.z = FIX_ONE;
stack->tracker.d = - gf_vec_dot(stack->start_drag, stack->tracker.normal);
ps->isActive = 1;
gf_node_event_out_str(sh->owner, "isActive");
R3D_SetGrabbed(stack->compositor, 1);
}
else if (ps->isActive) {
GF_Ray loc_ray;
SFVec3f res;
loc_ray = hit_info->world_ray;
gf_mx_apply_ray(&stack->initial_matrix, &loc_ray);
gf_plane_intersect_line(&stack->tracker, &loc_ray.orig, &loc_ray.dir, &res);
ps->trackPoint_changed = res;
gf_node_event_out_str(sh->owner, "trackPoint_changed");
gf_vec_diff(res, res, stack->start_drag);
/*clip*/
if (ps->minPosition.x <= ps->maxPosition.x) {
if (res.x < ps->minPosition.x) res.x = ps->minPosition.x;
if (res.x > ps->maxPosition.x) res.x = ps->maxPosition.x;
}
if (ps->minPosition.y <= ps->maxPosition.y) {
if (res.y < ps->minPosition.y) res.y = ps->minPosition.y;
if (res.y > ps->maxPosition.y) res.y = ps->maxPosition.y;
}
ps->translation_changed = res;
gf_node_event_out_str(sh->owner, "translation_changed");
}
}
static Bool OnCylinderSensor(GF_SensorHandler *sh, Bool is_over, Bool is_cancel, GF_Event *ev, GF_Compositor *compositor)
{
Bool is_mouse = (ev->type<=GF_EVENT_MOUSEWHEEL) ? 1 : 0;
M_CylinderSensor *cs = (M_CylinderSensor *)sh->sensor;
CylinderSensorStack *st = (CylinderSensorStack *) gf_node_get_private(sh->sensor);
if (cs->isActive && (!cs->enabled
|| /*mouse*/((ev->type==GF_EVENT_MOUSEUP) && (ev->mouse.button==GF_MOUSE_LEFT))
|| /*keyboar*/(!is_mouse && (!is_over|| ((ev->type==GF_EVENT_KEYDOWN) && (ev->key.key_code==GF_KEY_ENTER))))
) ) {
if (cs->autoOffset) {
cs->offset = cs->rotation_changed.q;
if (!is_cancel) gf_node_event_out(sh->sensor, 5/*"offset"*/);
}
cs->isActive = 0;
if (!is_cancel) gf_node_event_out(sh->sensor, 6/*"isActive"*/);
sh->grabbed = 0;
return is_cancel ? 0 : 1;
}
else if (is_mouse) {
if (!cs->isActive && (ev->type==GF_EVENT_MOUSEDOWN) && (ev->mouse.button==GF_MOUSE_LEFT)) {
GF_Ray r;
SFVec3f yaxis;
Fixed acute, reva;
SFVec3f bearing;
gf_mx_copy(st->init_matrix, compositor->hit_world_to_local);
/*get initial angle & check disk mode*/
r = compositor->hit_world_ray;
gf_vec_add(r.dir, r.orig, r.dir);
gf_mx_apply_vec(&compositor->hit_world_to_local, &r.orig);
gf_mx_apply_vec(&compositor->hit_world_to_local, &r.dir);
gf_vec_diff(bearing, r.orig, r.dir);
gf_vec_norm(&bearing);
yaxis.x = yaxis.z = 0;
yaxis.y = FIX_ONE;
acute = gf_vec_dot(bearing, yaxis);
if (acute < -FIX_ONE) acute = -FIX_ONE;
else if (acute > FIX_ONE) acute = FIX_ONE;
acute = gf_acos(acute);
reva = ABS(GF_PI - acute);
if (reva<acute) acute = reva;
st->disk_mode = (acute < cs->diskAngle) ? 1 : 0;
st->grab_start = compositor->hit_local_point;
/*cos we're lazy*/
st->yplane.d = 0;
st->yplane.normal.x = st->yplane.normal.z = st->yplane.normal.y = 0;
st->zplane = st->xplane = st->yplane;
st->xplane.normal.x = FIX_ONE;
st->yplane.normal.y = FIX_ONE;
st->zplane.normal.z = FIX_ONE;
cs->rotation_changed.x = 0;
cs->rotation_changed.y = FIX_ONE;
cs->rotation_changed.z = 0;
cs->isActive = 1;
gf_node_event_out(sh->sensor, 6/*"isActive"*/);
sh->grabbed = 1;
return 1;
}
else if (cs->isActive) {
GF_Ray r;
Fixed radius, rot;
SFVec3f dir1, dir2, cx;
if (is_over) {
cs->trackPoint_changed = compositor->hit_local_point;
gf_node_event_out(sh->sensor, 8/*"trackPoint_changed"*/);
} else {
GF_Plane project_to;
r = compositor->hit_world_ray;
gf_mx_apply_ray(&st->init_matrix, &r);
/*no intersection, use intersection with "main" fronting plane*/
if ( ABS(r.dir.z) > ABS(r.dir.y)) {
if (ABS(r.dir.z) > ABS(r.dir.x)) project_to = st->xplane;
else project_to = st->yplane;
} else {
if (ABS(r.dir.z) > ABS(r.dir.x)) project_to = st->xplane;
else project_to = st->zplane;
}
if (!gf_plane_intersect_line(&project_to, &r.orig, &r.dir, &compositor->hit_local_point)) return 0;
}
dir1.x = compositor->hit_local_point.x;
dir1.y = 0;
dir1.z = compositor->hit_local_point.z;
if (st->disk_mode) {
radius = FIX_ONE;
} else {
radius = gf_vec_len(dir1);
}
gf_vec_norm(&dir1);
dir2.x = st->grab_start.x;
dir2.y = 0;
dir2.z = st->grab_start.z;
gf_vec_norm(&dir2);
cx = gf_vec_cross(dir2, dir1);
gf_vec_norm(&cx);
if (gf_vec_len(cx)<FIX_EPSILON) return 0;
rot = gf_mulfix(radius, gf_acos(gf_vec_dot(dir2, dir1)) );
if (fabs(cx.y + FIX_ONE) < FIX_EPSILON) rot = -rot;
if (cs->autoOffset) rot += cs->offset;
if (cs->minAngle < cs->maxAngle) {
if (rot < cs->minAngle) rot = cs->minAngle;
else if (rot > cs->maxAngle) rot = cs->maxAngle;
}
cs->rotation_changed.q = rot;
gf_node_event_out(sh->sensor, 7/*"rotation_changed"*/);
return 1;
}
} else {
if (!cs->isActive && is_over && (ev->type==GF_EVENT_KEYDOWN) && (ev->key.key_code==GF_KEY_ENTER)) {
cs->isActive = 1;
cs->rotation_changed.q = cs->offset;
cs->rotation_changed.x = cs->rotation_changed.z = 0;
cs->rotation_changed.y = FIX_ONE;
gf_node_event_out(sh->sensor, 6/*"isActive"*/);
return 1;
}
else if (cs->isActive && (ev->type==GF_EVENT_KEYDOWN)) {
SFFloat res;
Fixed diff = (ev->key.flags & GF_KEY_MOD_SHIFT) ? GF_PI/8 : GF_PI/64;
res = cs->rotation_changed.q;
switch (ev->key.key_code) {
case GF_KEY_LEFT:
res -= diff;
break;
case GF_KEY_RIGHT:
res += diff;
break;
case GF_KEY_HOME:
res = cs->offset;
break;
default:
return 0;
}
/*clip*/
if (cs->minAngle <= cs->maxAngle) {
if (res < cs->minAngle) res = cs->minAngle;
if (res > cs->maxAngle) res = cs->maxAngle;
}
cs->rotation_changed.q = res;
gf_node_event_out(sh->sensor, 7/*"rotation_changed"*/);
return 1;
}
}
return 0;
}
static Bool OnPlaneSensor(GF_SensorHandler *sh, Bool is_over, Bool is_cancel, GF_Event *ev, GF_Compositor *compositor)
{
Bool is_mouse = (ev->type<=GF_EVENT_MOUSEWHEEL) ? 1 : 0;
M_PlaneSensor *ps = (M_PlaneSensor *)sh->sensor;
PSStack *stack = (PSStack *) gf_node_get_private(sh->sensor);
if (ps->isActive &&
( /*mouse*/((ev->type==GF_EVENT_MOUSEUP) && (ev->mouse.button==GF_MOUSE_LEFT))
|| /*keyboar*/(!is_mouse && (!is_over|| ((ev->type==GF_EVENT_KEYDOWN) && (ev->key.key_code==GF_KEY_ENTER))) )
) ) {
if (ps->autoOffset) {
ps->offset = ps->translation_changed;
if (!is_cancel) gf_node_event_out(sh->sensor, 4/*"offset"*/);
}
ps->isActive = 0;
if (!is_cancel) gf_node_event_out(sh->sensor, 5/*"isActive"*/);
sh->grabbed = 0;
return is_cancel ? 0 : 1;
}
/*mouse*/
else if (is_mouse) {
if (!ps->isActive && (ev->type==GF_EVENT_MOUSEDOWN) && (ev->mouse.button==GF_MOUSE_LEFT) ) {
gf_mx_copy(stack->initial_matrix, compositor->hit_local_to_world);
gf_vec_diff(stack->start_drag, compositor->hit_local_point, ps->offset);
stack->tracker.normal.x = stack->tracker.normal.y = 0;
stack->tracker.normal.z = FIX_ONE;
stack->tracker.d = - gf_vec_dot(stack->start_drag, stack->tracker.normal);
ps->isActive = 1;
gf_node_event_out(sh->sensor, 5/*"isActive"*/);
sh->grabbed = 1;
return 1;
}
else if (ps->isActive) {
GF_Ray loc_ray;
SFVec3f res;
loc_ray = compositor->hit_world_ray;
gf_mx_apply_ray(&stack->initial_matrix, &loc_ray);
gf_plane_intersect_line(&stack->tracker, &loc_ray.orig, &loc_ray.dir, &res);
ps->trackPoint_changed = res;
gf_node_event_out(sh->sensor, 6/*"trackPoint_changed"*/);
gf_vec_diff(res, res, stack->start_drag);
/*clip*/
if (ps->minPosition.x <= ps->maxPosition.x) {
if (res.x < ps->minPosition.x) res.x = ps->minPosition.x;
if (res.x > ps->maxPosition.x) res.x = ps->maxPosition.x;
}
if (ps->minPosition.y <= ps->maxPosition.y) {
if (res.y < ps->minPosition.y) res.y = ps->minPosition.y;
if (res.y > ps->maxPosition.y) res.y = ps->maxPosition.y;
}
ps->translation_changed = res;
gf_node_event_out(sh->sensor, 7/*"translation_changed"*/);
return 1;
}
} else {
if (!ps->isActive && is_over && (ev->type==GF_EVENT_KEYDOWN) && (ev->key.key_code==GF_KEY_ENTER)) {
ps->isActive = 1;
stack->start_drag = ps->offset;
gf_node_event_out(sh->sensor, 5/*"isActive"*/);
return 1;
}
else if (ps->isActive && (ev->type==GF_EVENT_KEYDOWN)) {
SFVec3f res;
Fixed diff = (ev->key.flags & GF_KEY_MOD_SHIFT) ? 5*FIX_ONE : FIX_ONE;
if (!gf_sg_use_pixel_metrics(gf_node_get_graph(sh->sensor)))
diff = gf_divfix(diff, INT2FIX(compositor->vp_width/2));
res = stack->start_drag;
switch (ev->key.key_code) {
case GF_KEY_LEFT:
res.x -= diff;
break;
case GF_KEY_RIGHT:
res.x += diff;
break;
case GF_KEY_UP:
res.y += diff;
break;
case GF_KEY_DOWN:
res.y -= diff;
break;
case GF_KEY_HOME:
res = ps->offset;
break;
default:
return 0;
}
/*clip*/
if (ps->minPosition.x <= ps->maxPosition.x) {
if (res.x < ps->minPosition.x) res.x = ps->minPosition.x;
if (res.x > ps->maxPosition.x) res.x = ps->maxPosition.x;
}
if (ps->minPosition.y <= ps->maxPosition.y) {
if (res.y < ps->minPosition.y) res.y = ps->minPosition.y;
if (res.y > ps->maxPosition.y) res.y = ps->maxPosition.y;
}
stack->start_drag = res;
ps->translation_changed = res;
gf_node_event_out(sh->sensor, 7/*"translation_changed"*/);
return 1;
}
}
return 0;
}
static void OnCylinderSensor(SensorHandler *sh, Bool is_over, GF_Event *ev, RayHitInfo *hit_info)
{
M_CylinderSensor *cs = (M_CylinderSensor *)sh->owner;
CylinderSensorStack *st = (CylinderSensorStack *) gf_node_get_private(sh->owner);
if (cs->isActive && (!cs->enabled || ((ev->type==GF_EVENT_MOUSEUP) && (ev->mouse.button==GF_MOUSE_LEFT))) ) {
if (cs->autoOffset) {
cs->offset = cs->rotation_changed.q;
gf_node_event_out_str(sh->owner, "offset");
}
cs->isActive = 0;
gf_node_event_out_str(sh->owner, "isActive");
R3D_SetGrabbed(st->compositor, 0);
}
else if (!cs->isActive && (ev->type==GF_EVENT_MOUSEDOWN) && (ev->mouse.button==GF_MOUSE_LEFT)) {
GF_Ray r;
SFVec3f yaxis;
Fixed acute, reva;
SFVec3f bearing;
gf_mx_copy(st->init_matrix, hit_info->world_to_local);
/*get initial angle & check disk mode*/
r = hit_info->world_ray;
gf_vec_add(r.dir, r.orig, r.dir);
gf_mx_apply_vec(&hit_info->world_to_local, &r.orig);
gf_mx_apply_vec(&hit_info->world_to_local, &r.dir);
gf_vec_diff(bearing, r.orig, r.dir);
gf_vec_norm(&bearing);
yaxis.x = yaxis.z = 0;
yaxis.y = FIX_ONE;
acute = gf_vec_dot(bearing, yaxis);
if (acute < -FIX_ONE) acute = -FIX_ONE;
else if (acute > FIX_ONE) acute = FIX_ONE;
acute = gf_acos(acute);
reva = ABS(GF_PI - acute);
if (reva<acute) acute = reva;
st->disk_mode = (acute < cs->diskAngle) ? 1 : 0;
st->grab_start = hit_info->local_point;
/*cos we're lazy*/
st->yplane.d = 0; st->yplane.normal.x = st->yplane.normal.z = st->yplane.normal.y = 0;
st->zplane = st->xplane = st->yplane;
st->xplane.normal.x = FIX_ONE;
st->yplane.normal.y = FIX_ONE;
st->zplane.normal.z = FIX_ONE;
cs->rotation_changed.x = 0;
cs->rotation_changed.y = FIX_ONE;
cs->rotation_changed.z = 0;
cs->isActive = 1;
gf_node_event_out_str(sh->owner, "isActive");
R3D_SetGrabbed(st->compositor, 1);
}
else if (cs->isActive) {
GF_Ray r;
Fixed radius, rot;
SFVec3f dir1, dir2, cx;
if (is_over) {
cs->trackPoint_changed = hit_info->local_point;
gf_node_event_out_str(sh->owner, "trackPoint_changed");
} else {
GF_Plane project_to;
r = hit_info->world_ray;
gf_mx_apply_ray(&st->init_matrix, &r);
/*no intersection, use intersection with "main" fronting plane*/
if ( ABS(r.dir.z) > ABS(r.dir.y)) {
if (ABS(r.dir.x) > ABS(r.dir.x)) project_to = st->xplane;
else project_to = st->zplane;
} else project_to = st->yplane;
if (!gf_plane_intersect_line(&project_to, &r.orig, &r.dir, &hit_info->local_point)) return;
}
dir1.x = hit_info->local_point.x; dir1.y = 0; dir1.z = hit_info->local_point.z;
if (st->disk_mode) {
radius = FIX_ONE;
} else {
radius = gf_vec_len(dir1);
}
gf_vec_norm(&dir1);
dir2.x = st->grab_start.x; dir2.y = 0; dir2.z = st->grab_start.z;
gf_vec_norm(&dir2);
cx = gf_vec_cross(dir2, dir1);
gf_vec_norm(&cx);
if (gf_vec_len(cx)<FIX_EPSILON) return;
rot = gf_mulfix(radius, gf_acos(gf_vec_dot(dir2, dir1)) );
if (fabs(cx.y + FIX_ONE) < FIX_EPSILON) rot = -rot;
if (cs->autoOffset) rot += cs->offset;
if (cs->minAngle < cs->maxAngle) {
if (rot < cs->minAngle) rot = cs->minAngle;
else if (rot > cs->maxAngle) rot = cs->maxAngle;
}
cs->rotation_changed.q = rot;
gf_node_event_out_str(sh->owner, "rotation_changed");
}
}