NLA Transform Bugfixes:

* Scaling NLA-strips now resets their scale setting correctly at all times
* Added safe-guards against negative scaling being created through the use of the transform tools.

Note: at scale 0 or thereabouts, there will still be a little blip, when keyframes are scaled as if scale were 1.0f. It's quite harmless.
This commit is contained in:
Joshua Leung 2008-05-11 13:07:40 +00:00
parent 2d96d1189f
commit 97e72570d1
2 changed files with 45 additions and 2 deletions

@ -2726,9 +2726,10 @@ static void createTransNlaData(TransInfo *t)
if (base->object->action) {
/* exclude if strip is selected too */
for (strip=base->object->nlastrips.first; strip; strip=strip->next) {
if (strip->flag & ACTSTRIP_SELECT)
if (strip->flag & ACTSTRIP_SELECT) {
if (strip->act == base->object->action)
break;
}
}
if (strip==NULL) {
cfra = get_action_frame(base->object, CFRA);
@ -2790,9 +2791,10 @@ static void createTransNlaData(TransInfo *t)
if (base->object->action) {
/* exclude if strip that active action belongs to is selected too */
for (strip=base->object->nlastrips.first; strip; strip=strip->next) {
if (strip->flag & ACTSTRIP_SELECT)
if (strip->flag & ACTSTRIP_SELECT) {
if (strip->act == base->object->action)
break;
}
}
/* can include if no strip found */

@ -39,6 +39,7 @@
#include "DNA_lattice_types.h"
#include "DNA_mesh_types.h"
#include "DNA_modifier_types.h"
#include "DNA_nla_types.h"
#include "DNA_object_types.h"
#include "DNA_object_force.h"
#include "DNA_particle_types.h"
@ -303,10 +304,50 @@ void recalcData(TransInfo *t)
if (base->object->recalc)
base->object->ctime= -1234567.0f; // eveil!
/* recalculate scale of selected nla-strips */
if (base->object->nlastrips.first) {
Object *bob= base->object;
bActionStrip *strip;
for (strip= bob->nlastrips.first; strip; strip= strip->next) {
if (strip->flag & ACTSTRIP_SELECT) {
float actlen= strip->actend - strip->actstart;
float len= strip->end - strip->start;
strip->scale= len / (actlen * strip->repeat);
}
}
}
}
DAG_scene_flush_update(G.scene, screen_view3d_layers(), 0);
}
else {
for (base=G.scene->base.first; base; base=base->next) {
/* recalculate scale of selected nla-strips */
if (base->object->nlastrips.first) {
Object *bob= base->object;
bActionStrip *strip;
for (strip= bob->nlastrips.first; strip; strip= strip->next) {
if (strip->flag & ACTSTRIP_SELECT) {
float actlen= strip->actend - strip->actstart;
float len= strip->end - strip->start;
/* prevent 'negative' scaling */
if (len < 0) {
SWAP(float, strip->start, strip->end);
len= fabs(len);
}
/* calculate new scale */
strip->scale= len / (actlen * strip->repeat);
}
}
}
}
}
}
else if (t->spacetype == SPACE_IPO) {
EditIpo *ei;