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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*/
/** \file
* \ingroup edtransform
*/
#include "DNA_anim_types.h"
#include "DNA_space_types.h"
#include "MEM_guardedalloc.h"
#include "BLI_listbase.h"
#include "BLI_math.h"
#include "BKE_context.h"
#include "BKE_nla.h"
#include "BKE_report.h"
#include "ED_anim_api.h"
#include "transform.h"
#include "transform_convert.h"
/* -------------------------------------------------------------------- */
/** \name NLA Transform Creation
*
* \{ */
void createTransNlaData(bContext *C, TransInfo *t)
{
Scene *scene = t->scene;
SpaceNla *snla = NULL;
TransData *td = NULL;
TransDataNla *tdn = NULL;
bAnimContext ac;
ListBase anim_data = {NULL, NULL};
bAnimListElem *ale;
int filter;
int count = 0;
TransDataContainer *tc = TRANS_DATA_CONTAINER_FIRST_SINGLE(t);
/* determine what type of data we are operating on */
if (ANIM_animdata_get_context(C, &ac) == 0) {
return;
}
snla = (SpaceNla *)ac.sl;
/* filter data */
filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_FOREDIT);
ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
/* which side of the current frame should be allowed */
if (t->mode == TFM_TIME_EXTEND) {
/* only side on which center is gets transformed */
float center[2];
transform_convert_center_global_v2(t, center);
t->frame_side = (center[0] > CFRA) ? 'R' : 'L';
}
else {
/* normal transform - both sides of current frame are considered */
t->frame_side = 'B';
}
/* loop 1: count how many strips are selected (consider each strip as 2 points) */
for (ale = anim_data.first; ale; ale = ale->next) {
NlaTrack *nlt = (NlaTrack *)ale->data;
NlaStrip *strip;
/* make some meta-strips for chains of selected strips */
BKE_nlastrips_make_metas(&nlt->strips, 1);
/* only consider selected strips */
for (strip = nlt->strips.first; strip; strip = strip->next) {
// TODO: we can make strips have handles later on...
/* transition strips can't get directly transformed */
if (strip->type != NLASTRIP_TYPE_TRANSITION) {
if (strip->flag & NLASTRIP_FLAG_SELECT) {
if (FrameOnMouseSide(t->frame_side, strip->start, (float)CFRA)) {
count++;
}
if (FrameOnMouseSide(t->frame_side, strip->end, (float)CFRA)) {
count++;
}
}
}
}
}
/* stop if trying to build list if nothing selected */
if (count == 0) {
/* clear temp metas that may have been created but aren't needed now
* because they fell on the wrong side of CFRA
*/
for (ale = anim_data.first; ale; ale = ale->next) {
NlaTrack *nlt = (NlaTrack *)ale->data;
BKE_nlastrips_clear_metas(&nlt->strips, 0, 1);
}
/* cleanup temp list */
ANIM_animdata_freelist(&anim_data);
return;
}
/* allocate memory for data */
tc->data_len = count;
tc->data = MEM_callocN(tc->data_len * sizeof(TransData), "TransData(NLA Editor)");
td = tc->data;
tc->custom.type.data = tdn = MEM_callocN(tc->data_len * sizeof(TransDataNla),
"TransDataNla (NLA Editor)");
tc->custom.type.use_free = true;
/* loop 2: build transdata array */
for (ale = anim_data.first; ale; ale = ale->next) {
/* only if a real NLA-track */
if (ale->type == ANIMTYPE_NLATRACK) {
AnimData *adt = ale->adt;
NlaTrack *nlt = (NlaTrack *)ale->data;
NlaStrip *strip;
/* only consider selected strips */
for (strip = nlt->strips.first; strip; strip = strip->next) {
// TODO: we can make strips have handles later on...
/* transition strips can't get directly transformed */
if (strip->type != NLASTRIP_TYPE_TRANSITION) {
if (strip->flag & NLASTRIP_FLAG_SELECT) {
/* our transform data is constructed as follows:
* - only the handles on the right side of the current-frame get included
* - td structs are transform-elements operated on by the transform system
* and represent a single handle. The storage/pointer used (val or loc) depends on
* whether we're scaling or transforming. Ultimately though, the handles
* the td writes to will simply be a dummy in tdn
* - for each strip being transformed, a single tdn struct is used, so in some
* cases, there will need to be 1 of these tdn elements in the array skipped...
*/
float center[3], yval;
/* firstly, init tdn settings */
tdn->id = ale->id;
tdn->oldTrack = tdn->nlt = nlt;
tdn->strip = strip;
tdn->trackIndex = BLI_findindex(&adt->nla_tracks, nlt);
yval = (float)(tdn->trackIndex * NLACHANNEL_STEP(snla));
tdn->h1[0] = strip->start;
tdn->h1[1] = yval;
tdn->h2[0] = strip->end;
tdn->h2[1] = yval;
center[0] = (float)CFRA;
center[1] = yval;
center[2] = 0.0f;
/* set td's based on which handles are applicable */
if (FrameOnMouseSide(t->frame_side, strip->start, (float)CFRA)) {
/* just set tdn to assume that it only has one handle for now */
tdn->handle = -1;
/* now, link the transform data up to this data */
if (ELEM(t->mode, TFM_TRANSLATION, TFM_TIME_EXTEND)) {
td->loc = tdn->h1;
copy_v3_v3(td->iloc, tdn->h1);
/* store all the other gunk that is required by transform */
copy_v3_v3(td->center, center);
memset(td->axismtx, 0, sizeof(td->axismtx));
td->axismtx[2][2] = 1.0f;
td->ext = NULL;
td->val = NULL;
td->flag |= TD_SELECTED;
td->dist = 0.0f;
unit_m3(td->mtx);
unit_m3(td->smtx);
}
else {
/* time scaling only needs single value */
td->val = &tdn->h1[0];
td->ival = tdn->h1[0];
}
td->extra = tdn;
td++;
}
if (FrameOnMouseSide(t->frame_side, strip->end, (float)CFRA)) {
/* if tdn is already holding the start handle,
* then we're doing both, otherwise, only end */
tdn->handle = (tdn->handle) ? 2 : 1;
/* now, link the transform data up to this data */
if (ELEM(t->mode, TFM_TRANSLATION, TFM_TIME_EXTEND)) {
td->loc = tdn->h2;
copy_v3_v3(td->iloc, tdn->h2);
/* store all the other gunk that is required by transform */
copy_v3_v3(td->center, center);
memset(td->axismtx, 0, sizeof(td->axismtx));
td->axismtx[2][2] = 1.0f;
td->ext = NULL;
td->val = NULL;
td->flag |= TD_SELECTED;
td->dist = 0.0f;
unit_m3(td->mtx);
unit_m3(td->smtx);
}
else {
/* time scaling only needs single value */
td->val = &tdn->h2[0];
td->ival = tdn->h2[0];
}
td->extra = tdn;
td++;
}
/* If both handles were used, skip the next tdn (i.e. leave it blank)
* since the counting code is dumb.
* Otherwise, just advance to the next one.
*/
if (tdn->handle == 2) {
tdn += 2;
}
else {
tdn++;
}
}
}
}
}
}
/* cleanup temp list */
ANIM_animdata_freelist(&anim_data);
}
/** \} */
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