/* x and y are mouse coords (area space) */
void *get_nearest_bone(bContext *C, short findunsel, int x, int y)
{
ViewContext vc;
rcti rect;
unsigned int buffer[MAXPICKBUF];
short hits;
view3d_set_viewcontext(C, &vc);
// rect.xmin = ... mouseco!
rect.xmin = rect.xmax = x;
rect.ymin = rect.ymax = y;
hits = view3d_opengl_select(&vc, buffer, MAXPICKBUF, &rect, true);
if (hits > 0)
return get_bone_from_selectbuffer(vc.scene, vc.scene->basact, buffer, hits, findunsel, true);
return NULL;
}
/* Select MetaElement with mouse click (user can select radius circle or
* stiffness circle) */
int mouse_mball(bContext *C, const int mval[2], int extend, int deselect, int toggle)
{
static MetaElem *startelem = NULL;
Object *obedit = CTX_data_edit_object(C);
ViewContext vc;
MetaBall *mb = (MetaBall *)obedit->data;
MetaElem *ml, *ml_act = NULL;
int a, hits;
unsigned int buffer[4 * MAXPICKBUF];
rcti rect;
view3d_set_viewcontext(C, &vc);
rect.xmin = mval[0] - 12;
rect.xmax = mval[0] + 12;
rect.ymin = mval[1] - 12;
rect.ymax = mval[1] + 12;
hits = view3d_opengl_select(&vc, buffer, MAXPICKBUF, &rect);
/* does startelem exist? */
ml = mb->editelems->first;
while (ml) {
if (ml == startelem) break;
ml = ml->next;
}
if (ml == NULL) startelem = mb->editelems->first;
if (hits > 0) {
ml = startelem;
while (ml) {
for (a = 0; a < hits; a++) {
/* index converted for gl stuff */
if (ml->selcol1 == buffer[4 * a + 3]) {
ml->flag |= MB_SCALE_RAD;
ml_act = ml;
}
if (ml->selcol2 == buffer[4 * a + 3]) {
ml->flag &= ~MB_SCALE_RAD;
ml_act = ml;
}
}
if (ml_act) break;
ml = ml->next;
if (ml == NULL) ml = mb->editelems->first;
if (ml == startelem) break;
}
/* When some metaelem was found, then it is necessary to select or
* deselect it. */
if (ml_act) {
if (extend) {
ml_act->flag |= SELECT;
}
else if (deselect) {
ml_act->flag &= ~SELECT;
}
else if (toggle) {
if (ml_act->flag & SELECT)
ml_act->flag &= ~SELECT;
else
ml_act->flag |= SELECT;
}
else {
/* Deselect all existing metaelems */
BKE_mball_deselect_all(mb);
/* Select only metaelem clicked on */
ml_act->flag |= SELECT;
}
mb->lastelem = ml_act;
WM_event_add_notifier(C, NC_GEOM | ND_SELECT, mb);
return 1;
}
}
return 0;
}
/* note that BONE ROOT only gets drawn for root bones (or without IK) */
static EditBone *get_nearest_editbonepoint(ViewContext *vc, const int mval[2],
ListBase *edbo, int findunsel, int *selmask)
{
bArmature *arm = (bArmature *)vc->obedit->data;
EditBone *ebone_next_act = arm->act_edbone;
EditBone *ebone;
rcti rect;
unsigned int buffer[MAXPICKBUF];
unsigned int hitresult, besthitresult = BONESEL_NOSEL;
int i, mindep = 4;
short hits;
glInitNames();
/* find the bone after the current active bone, so as to bump up its chances in selection.
* this way overlapping bones will cycle selection state as with objects. */
if (ebone_next_act &&
EBONE_VISIBLE(arm, ebone_next_act) &&
ebone_next_act->flag & (BONE_SELECTED | BONE_ROOTSEL | BONE_TIPSEL))
{
ebone_next_act = ebone_next_act->next ? ebone_next_act->next : arm->edbo->first;
}
else {
ebone_next_act = NULL;
}
rect.xmin = mval[0] - 5;
rect.xmax = mval[0] + 5;
rect.ymin = mval[1] - 5;
rect.ymax = mval[1] + 5;
hits = view3d_opengl_select(vc, buffer, MAXPICKBUF, &rect);
if (hits == 0) {
rect.xmin = mval[0] - 12;
rect.xmax = mval[0] + 12;
rect.ymin = mval[1] - 12;
rect.ymax = mval[1] + 12;
hits = view3d_opengl_select(vc, buffer, MAXPICKBUF, &rect);
}
/* See if there are any selected bones in this group */
if (hits > 0) {
if (hits == 1) {
if (!(buffer[3] & BONESEL_NOSEL))
besthitresult = buffer[3];
}
else {
for (i = 0; i < hits; i++) {
hitresult = buffer[3 + (i * 4)];
if (!(hitresult & BONESEL_NOSEL)) {
int dep;
ebone = BLI_findlink(edbo, hitresult & ~BONESEL_ANY);
/* clicks on bone points get advantage */
if (hitresult & (BONESEL_ROOT | BONESEL_TIP)) {
/* but also the unselected one */
if (findunsel) {
if ( (hitresult & BONESEL_ROOT) && (ebone->flag & BONE_ROOTSEL) == 0)
dep = 1;
else if ( (hitresult & BONESEL_TIP) && (ebone->flag & BONE_TIPSEL) == 0)
dep = 1;
else
dep = 2;
}
else {
dep = 2;
}
}
else {
/* bone found */
if (findunsel) {
if ((ebone->flag & BONE_SELECTED) == 0)
dep = 2;
else
dep = 3;
}
else {
dep = 3;
}
}
if (ebone == ebone_next_act) {
dep -= 1;
}
if (dep < mindep) {
mindep = dep;
besthitresult = hitresult;
}
}
}
}
if (!(besthitresult & BONESEL_NOSEL)) {
ebone = BLI_findlink(edbo, besthitresult & ~BONESEL_ANY);
*selmask = 0;
if (besthitresult & BONESEL_ROOT)
*selmask |= BONE_ROOTSEL;
if (besthitresult & BONESEL_TIP)
*selmask |= BONE_TIPSEL;
if (besthitresult & BONESEL_BONE)
*selmask |= BONE_SELECTED;
return ebone;
}
}
*selmask = 0;
return NULL;
}