static int add_driver_button_exec(bContext *C, wmOperator *op)
{
PointerRNA ptr = {{NULL}};
PropertyRNA *prop = NULL;
int success = 0;
int index;
const bool all = RNA_boolean_get(op->ptr, "all");
/* try to create driver using property retrieved from UI */
uiContextActiveProperty(C, &ptr, &prop, &index);
if (all)
index = -1;
if (ptr.id.data && ptr.data && prop && RNA_property_animateable(&ptr, prop)) {
char *path = get_driver_path_hack(C, &ptr, prop);
short flags = CREATEDRIVER_WITH_DEFAULT_DVAR;
if (path) {
success += ANIM_add_driver(op->reports, ptr.id.data, path, index, flags, DRIVER_TYPE_PYTHON);
MEM_freeN(path);
}
}
if (success) {
/* send updates */
uiContextAnimUpdate(C);
WM_event_add_notifier(C, NC_ANIMATION | ND_FCURVES_ORDER, NULL); // XXX
}
return (success) ? OPERATOR_FINISHED : OPERATOR_CANCELLED;
}
/* Wrapper for creating a driver without knowing what the targets will be yet
* (i.e. "manual/add later"). */
static int add_driver_button_none(bContext *C, wmOperator *op, short mapping_type)
{
PointerRNA ptr = {{NULL}};
PropertyRNA *prop = NULL;
int index;
int success = 0;
UI_context_active_but_prop_get(C, &ptr, &prop, &index);
if (mapping_type == CREATEDRIVER_MAPPING_NONE_ALL) {
index = -1;
}
if (ptr.id.data && ptr.data && prop && RNA_property_animateable(&ptr, prop)) {
char *path = BKE_animdata_driver_path_hack(C, &ptr, prop, NULL);
short flags = CREATEDRIVER_WITH_DEFAULT_DVAR;
if (path) {
success += ANIM_add_driver(op->reports, ptr.id.data, path, index, flags, DRIVER_TYPE_PYTHON);
MEM_freeN(path);
}
}
if (success) {
/* send updates */
UI_context_update_anim_flag(C);
DEG_relations_tag_update(CTX_data_main(C));
WM_event_add_notifier(C, NC_ANIMATION | ND_FCURVES_ORDER, NULL); // XXX
return OPERATOR_FINISHED;
}
else {
return OPERATOR_CANCELLED;
}
}
static int add_driver_button_invoke(bContext *C, wmOperator *op, const wmEvent *UNUSED(event))
{
PointerRNA ptr = {{NULL}};
PropertyRNA *prop = NULL;
int index;
/* try to find driver using property retrieved from UI */
UI_context_active_but_prop_get(C, &ptr, &prop, &index);
if (ptr.id.data && ptr.data && prop && RNA_property_animateable(&ptr, prop)) {
/* 1) Create a new "empty" driver for this property */
char *path = BKE_animdata_driver_path_hack(C, &ptr, prop, NULL);
short flags = CREATEDRIVER_WITH_DEFAULT_DVAR;
short success = 0;
if (path) {
success += ANIM_add_driver(op->reports, ptr.id.data, path, index, flags, DRIVER_TYPE_PYTHON);
MEM_freeN(path);
}
if (success) {
/* send updates */
UI_context_update_anim_flag(C);
DEG_id_tag_update(ptr.id.data, ID_RECALC_COPY_ON_WRITE);
DEG_relations_tag_update(CTX_data_main(C));
WM_event_add_notifier(C, NC_ANIMATION | ND_FCURVES_ORDER, NULL);
}
/* 2) Show editing panel for setting up this driver */
/* TODO: Use a different one from the editing popever, so we can have the single/all toggle? */
UI_popover_panel_invoke(C, "GRAPH_PT_drivers_popover", true, op->reports);
}
return OPERATOR_INTERFACE;
}
PyObject *pyrna_struct_driver_add(BPy_StructRNA *self, PyObject *args)
{
const char *path, *path_full;
int index = -1;
PYRNA_STRUCT_CHECK_OBJ(self);
if (!PyArg_ParseTuple(args, "s|i:driver_add", &path, &index))
return NULL;
if (pyrna_struct_anim_args_parse(&self->ptr, "bpy_struct.driver_add():", path, &path_full, &index) == -1) {
return NULL;
}
else {
PyObject *ret = NULL;
ReportList reports;
int result;
BKE_reports_init(&reports, RPT_STORE);
result = ANIM_add_driver(&reports, (ID *)self->ptr.id.data, path_full, index,
CREATEDRIVER_WITH_FMODIFIER, DRIVER_TYPE_PYTHON);
if (BPy_reports_to_error(&reports, PyExc_RuntimeError, true) == -1)
return NULL;
if (result) {
ID *id = self->ptr.id.data;
AnimData *adt = BKE_animdata_from_id(id);
FCurve *fcu;
PointerRNA tptr;
if (index == -1) { /* all, use a list */
int i = 0;
ret = PyList_New(0);
while ((fcu = list_find_fcurve(&adt->drivers, path_full, i++))) {
RNA_pointer_create(id, &RNA_FCurve, fcu, &tptr);
PyList_APPEND(ret, pyrna_struct_CreatePyObject(&tptr));
}
}
else {
fcu = list_find_fcurve(&adt->drivers, path_full, index);
RNA_pointer_create(id, &RNA_FCurve, fcu, &tptr);
ret = pyrna_struct_CreatePyObject(&tptr);
}
WM_event_add_notifier(BPy_GetContext(), NC_ANIMATION | ND_FCURVES_ORDER, NULL);
}
else {
/* XXX, should be handled by reports, */
PyErr_SetString(PyExc_TypeError, "bpy_struct.driver_add(): failed because of an internal error");
return NULL;
}
MEM_freeN((void *)path_full);
return ret;
}
}
/* Main Driver Management API calls:
* Add a new driver for the specified property on the given ID block,
* and make it be driven by the specified target.
*
* This is intended to be used in conjunction with a modal "eyedropper"
* for picking the variable that is going to be used to drive this one.
*
* - flag: eCreateDriverFlags
* - driver_type: eDriver_Types
* - mapping_type: eCreateDriver_MappingTypes
*/
int ANIM_add_driver_with_target(ReportList *reports,
ID *dst_id,
const char dst_path[],
int dst_index,
ID *src_id,
const char src_path[],
int src_index,
short flag,
int driver_type,
short mapping_type)
{
PointerRNA id_ptr, ptr;
PropertyRNA *prop;
PointerRNA id_ptr2, ptr2;
PropertyRNA *prop2;
int done_tot = 0;
/* validate pointers first - exit if failure */
RNA_id_pointer_create(dst_id, &id_ptr);
if (RNA_path_resolve_property(&id_ptr, dst_path, &ptr, &prop) == false) {
BKE_reportf(
reports,
RPT_ERROR,
"Could not add driver, as RNA path is invalid for the given ID (ID = %s, path = %s)",
dst_id->name,
dst_path);
return 0;
}
RNA_id_pointer_create(src_id, &id_ptr2);
if ((RNA_path_resolve_property(&id_ptr2, src_path, &ptr2, &prop2) == false) ||
(mapping_type == CREATEDRIVER_MAPPING_NONE)) {
/* No target - So, fall back to default method for adding a "simple" driver normally */
return ANIM_add_driver(
reports, dst_id, dst_path, dst_index, flag | CREATEDRIVER_WITH_DEFAULT_DVAR, driver_type);
}
/* handle curve-property mappings based on mapping_type */
switch (mapping_type) {
case CREATEDRIVER_MAPPING_N_N: /* N-N - Try to match as much as possible,
* then use the first one */
{
/* Use the shorter of the two (to avoid out of bounds access) */
int dst_len = (RNA_property_array_check(prop)) ? RNA_property_array_length(&ptr, prop) : 1;
int src_len = (RNA_property_array_check(prop)) ? RNA_property_array_length(&ptr2, prop2) : 1;
int len = MIN2(dst_len, src_len);
int i;
for (i = 0; i < len; i++) {
done_tot += add_driver_with_target(reports,
dst_id,
dst_path,
i,
src_id,
src_path,
i,
&ptr,
prop,
&ptr2,
prop2,
flag,
driver_type);
}
break;
}
case CREATEDRIVER_MAPPING_1_N: /* 1-N - Specified target index for all */
default: {
int len = (RNA_property_array_check(prop)) ? RNA_property_array_length(&ptr, prop) : 1;
int i;
for (i = 0; i < len; i++) {
done_tot += add_driver_with_target(reports,
dst_id,
dst_path,
i,
src_id,
src_path,
src_index,
&ptr,
prop,
&ptr2,
prop2,
flag,
driver_type);
}
break;
}
case CREATEDRIVER_MAPPING_1_1: /* 1-1 - Use the specified index (unless -1) */
{
done_tot = add_driver_with_target(reports,
dst_id,
dst_path,
dst_index,
src_id,
src_path,
src_index,
&ptr,
prop,
&ptr2,
prop2,
flag,
driver_type);
break;
}
}
/* done */
return done_tot;
}
/* Recursively iterate over tree, finding and working on selected items */
static void do_outliner_drivers_editop(SpaceOops *soops, ListBase *tree, ReportList *reports, short mode)
{
TreeElement *te;
TreeStoreElem *tselem;
for (te= tree->first; te; te=te->next) {
tselem= TREESTORE(te);
/* if item is selected, perform operation */
if (tselem->flag & TSE_SELECTED) {
ID *id= NULL;
char *path= NULL;
int array_index= 0;
short flag= 0;
short groupmode= KSP_GROUP_KSNAME;
/* check if RNA-property described by this selected element is an animateable prop */
if (ELEM(tselem->type, TSE_RNA_PROPERTY, TSE_RNA_ARRAY_ELEM) && RNA_property_animateable(&te->rnaptr, te->directdata)) {
/* get id + path + index info from the selected element */
tree_element_to_path(soops, te, tselem,
&id, &path, &array_index, &flag, &groupmode);
}
/* only if ID and path were set, should we perform any actions */
if (id && path) {
short dflags = CREATEDRIVER_WITH_DEFAULT_DVAR;
int arraylen = 1;
/* array checks */
if (flag & KSP_FLAG_WHOLE_ARRAY) {
/* entire array was selected, so add drivers for all */
arraylen= RNA_property_array_length(&te->rnaptr, te->directdata);
}
else
arraylen= array_index;
/* we should do at least one step */
if (arraylen == array_index)
arraylen++;
/* for each array element we should affect, add driver */
for (; array_index < arraylen; array_index++) {
/* action depends on mode */
switch (mode) {
case DRIVERS_EDITMODE_ADD:
{
/* add a new driver with the information obtained (only if valid) */
ANIM_add_driver(reports, id, path, array_index, dflags, DRIVER_TYPE_PYTHON);
}
break;
case DRIVERS_EDITMODE_REMOVE:
{
/* remove driver matching the information obtained (only if valid) */
ANIM_remove_driver(reports, id, path, array_index, dflags);
}
break;
}
}
/* free path, since it had to be generated */
MEM_freeN(path);
}
}
/* go over sub-tree */
if ((tselem->flag & TSE_CLOSED)==0)
do_outliner_drivers_editop(soops, &te->subtree, reports, mode);
}
}