/* Get the min/max keyframes*/
static void get_keyframe_extents (bAnimContext *ac, float *min, float *max, const short onlySel)
{
ListBase anim_data = {NULL, NULL};
bAnimListElem *ale;
int filter;
/* get data to filter, from Action or Dopesheet */
filter= (ANIMFILTER_VISIBLE | ANIMFILTER_SEL | ANIMFILTER_CURVESONLY | ANIMFILTER_NODUPLIS);
ANIM_animdata_filter(ac, &anim_data, filter, ac->data, ac->datatype);
/* set large values to try to override */
*min= 999999999.0f;
*max= -999999999.0f;
/* check if any channels to set range with */
if (anim_data.first) {
/* go through channels, finding max extents */
for (ale= anim_data.first; ale; ale= ale->next) {
AnimData *adt= ANIM_nla_mapping_get(ac, ale);
FCurve *fcu= (FCurve *)ale->key_data;
float tmin, tmax;
/* get range and apply necessary scaling before processing */
calc_fcurve_range(fcu, &tmin, &tmax, onlySel);
if (adt) {
tmin= BKE_nla_tweakedit_remap(adt, tmin, NLATIME_CONVERT_MAP);
tmax= BKE_nla_tweakedit_remap(adt, tmax, NLATIME_CONVERT_MAP);
}
/* try to set cur using these values, if they're more extreme than previously set values */
*min= MIN2(*min, tmin);
*max= MAX2(*max, tmax);
}
/* free memory */
BLI_freelistN(&anim_data);
}
else {
/* set default range */
if (ac->scene) {
*min= (float)ac->scene->r.sfra;
*max= (float)ac->scene->r.efra;
}
else {
*min= -5;
*max= 100;
}
}
}
/* Calculate the extents of given action */
void calc_action_range(const bAction *act, float *start, float *end, short incl_modifiers)
{
FCurve *fcu;
float min = 999999999.0f, max = -999999999.0f;
short foundvert = 0, foundmod = 0;
if (act) {
for (fcu = act->curves.first; fcu; fcu = fcu->next) {
/* if curve has keyframes, consider them first */
if (fcu->totvert) {
float nmin, nmax;
/* get extents for this curve */
/* TODO: allow enabling/disabling this? */
calc_fcurve_range(fcu, &nmin, &nmax, false, true);
/* compare to the running tally */
min = min_ff(min, nmin);
max = max_ff(max, nmax);
foundvert = 1;
}
/* if incl_modifiers is enabled, need to consider modifiers too
* - only really care about the last modifier
*/
if ((incl_modifiers) && (fcu->modifiers.last)) {
FModifier *fcm = fcu->modifiers.last;
/* only use the maximum sensible limits of the modifiers if they are more extreme */
switch (fcm->type) {
case FMODIFIER_TYPE_LIMITS: /* Limits F-Modifier */
{
FMod_Limits *fmd = (FMod_Limits *)fcm->data;
if (fmd->flag & FCM_LIMIT_XMIN) {
min = min_ff(min, fmd->rect.xmin);
}
if (fmd->flag & FCM_LIMIT_XMAX) {
max = max_ff(max, fmd->rect.xmax);
}
break;
}
case FMODIFIER_TYPE_CYCLES: /* Cycles F-Modifier */
{
FMod_Cycles *fmd = (FMod_Cycles *)fcm->data;
if (fmd->before_mode != FCM_EXTRAPOLATE_NONE)
min = MINAFRAMEF;
if (fmd->after_mode != FCM_EXTRAPOLATE_NONE)
max = MAXFRAMEF;
break;
}
/* TODO: function modifier may need some special limits */
default: /* all other standard modifiers are on the infinite range... */
min = MINAFRAMEF;
max = MAXFRAMEF;
break;
}
foundmod = 1;
}
}
}
if (foundvert || foundmod) {
if (min == max) max += 1.0f;
*start = min;
*end = max;
}
else {
*start = 0.0f;
*end = 1.0f;
}
}
/* Get the min/max keyframes*/
static bool get_keyframe_extents(bAnimContext *ac, float *min, float *max, const short onlySel)
{
ListBase anim_data = {NULL, NULL};
bAnimListElem *ale;
int filter;
bool found = false;
/* get data to filter, from Action or Dopesheet */
/* XXX: what is sel doing here?!
* Commented it, was breaking things (eg. the "auto preview range" tool). */
filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE /*| ANIMFILTER_SEL *//*| ANIMFILTER_CURVESONLY*/ | ANIMFILTER_NODUPLIS);
ANIM_animdata_filter(ac, &anim_data, filter, ac->data, ac->datatype);
/* set large values to try to override */
*min = 999999999.0f;
*max = -999999999.0f;
/* check if any channels to set range with */
if (anim_data.first) {
/* go through channels, finding max extents */
for (ale = anim_data.first; ale; ale = ale->next) {
AnimData *adt = ANIM_nla_mapping_get(ac, ale);
if (ale->datatype == ALE_GPFRAME) {
bGPDlayer *gpl = ale->data;
bGPDframe *gpf;
/* find gp-frame which is less than or equal to cframe */
for (gpf = gpl->frames.first; gpf; gpf = gpf->next) {
const float framenum = (float)gpf->framenum;
*min = min_ff(*min, framenum);
*max = max_ff(*max, framenum);
found = true;
}
}
else if (ale->datatype == ALE_MASKLAY) {
MaskLayer *masklay = ale->data;
MaskLayerShape *masklay_shape;
/* find mask layer which is less than or equal to cframe */
for (masklay_shape = masklay->splines_shapes.first;
masklay_shape;
masklay_shape = masklay_shape->next)
{
const float framenum = (float)masklay_shape->frame;
*min = min_ff(*min, framenum);
*max = max_ff(*max, framenum);
found = true;
}
}
else {
FCurve *fcu = (FCurve *)ale->key_data;
float tmin, tmax;
/* get range and apply necessary scaling before processing */
if (calc_fcurve_range(fcu, &tmin, &tmax, onlySel, TRUE)) {
if (adt) {
tmin = BKE_nla_tweakedit_remap(adt, tmin, NLATIME_CONVERT_MAP);
tmax = BKE_nla_tweakedit_remap(adt, tmax, NLATIME_CONVERT_MAP);
}
/* try to set cur using these values, if they're more extreme than previously set values */
*min = min_ff(*min, tmin);
*max = max_ff(*max, tmax);
found = true;
}
}
}
/* free memory */
BLI_freelistN(&anim_data);
}
else {
/* set default range */
if (ac->scene) {
*min = (float)ac->scene->r.sfra;
*max = (float)ac->scene->r.efra;
}
else {
*min = -5;
*max = 100;
}
}
return found;
}
