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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2001-2002 NaN Holding BV. All rights reserved. */
/** \file
* \ingroup edtransform
*/
#include <stdlib.h>
#include "MEM_guardedalloc.h"
#include "DNA_anim_types.h"
#include "BLI_math.h"
#include "BLI_string.h"
#include "BKE_context.h"
#include "BKE_nla.h"
#include "BKE_unit.h"
#include "ED_screen.h"
#include "UI_interface.h"
#include "UI_view2d.h"
#include "BLT_translation.h"
#include "transform.h"
#include "transform_convert.h"
#include "transform_mode.h"
/* -------------------------------------------------------------------- */
/** \name Transform (Animation Time Slide)
* \{ */
static void headerTimeSlide(TransInfo *t, const float sval, char str[UI_MAX_DRAW_STR])
{
char tvec[NUM_STR_REP_LEN * 3];
if (hasNumInput(&t->num)) {
outputNumInput(&(t->num), tvec, &t->scene->unit);
}
else {
const float *range = t->custom.mode.data;
float minx = range[0];
float maxx = range[1];
float cval = t->values_final[0];
float val;
val = 2.0f * (cval - sval) / (maxx - minx);
CLAMP(val, -1.0f, 1.0f);
BLI_snprintf(&tvec[0], NUM_STR_REP_LEN, "%.4f", val);
}
BLI_snprintf(str, UI_MAX_DRAW_STR, TIP_("TimeSlide: %s"), &tvec[0]);
}
static void applyTimeSlideValue(TransInfo *t, float sval, float cval)
{
int i;
const float *range = t->custom.mode.data;
float minx = range[0];
float maxx = range[1];
/* set value for drawing black line */
if (t->spacetype == SPACE_ACTION) {
SpaceAction *saction = (SpaceAction *)t->area->spacedata.first;
saction->timeslide = cval;
}
/* It doesn't matter whether we apply to t->data or
* t->data2d, but t->data2d is more convenient. */
FOREACH_TRANS_DATA_CONTAINER (t, tc) {
TransData *td = tc->data;
for (i = 0; i < tc->data_len; i++, td++) {
/* it is assumed that td->extra is a pointer to the AnimData,
* whose active action is where this keyframe comes from
* (this is only valid when not in NLA)
*/
AnimData *adt = (t->spacetype != SPACE_NLA) ? td->extra : NULL;
/* only apply to data if in range */
if ((sval > minx) && (sval < maxx)) {
float cvalc = CLAMPIS(cval, minx, maxx);
float ival = td->ival;
float timefac;
/* NLA mapping magic here works as follows:
* - "ival" goes from strip time to global time
* - calculation is performed into td->val in global time
* (since sval and min/max are all in global time)
* - "td->val" then gets put back into strip time
*/
if (adt) {
/* strip to global */
ival = BKE_nla_tweakedit_remap(adt, ival, NLATIME_CONVERT_MAP);
}
/* left half? */
if (ival < sval) {
timefac = (sval - ival) / (sval - minx);
*(td->val) = cvalc - timefac * (cvalc - minx);
}
else {
timefac = (ival - sval) / (maxx - sval);
*(td->val) = cvalc + timefac * (maxx - cvalc);
}
if (adt) {
/* global to strip */
*(td->val) = BKE_nla_tweakedit_remap(adt, *(td->val), NLATIME_CONVERT_UNMAP);
}
}
}
}
}
static void applyTimeSlide(TransInfo *t, const int mval[2])
{
View2D *v2d = (View2D *)t->view;
float cval[2], sval[2];
const float *range = t->custom.mode.data;
float minx = range[0];
float maxx = range[1];
char str[UI_MAX_DRAW_STR];
/* calculate mouse co-ordinates */
UI_view2d_region_to_view(v2d, mval[0], mval[1], &cval[0], &cval[1]);
UI_view2d_region_to_view(v2d, t->mouse.imval[0], t->mouse.imval[1], &sval[0], &sval[1]);
/* t->values_final[0] stores cval[0], which is the current mouse-pointer location (in frames) */
/* XXX Need to be able to repeat this. */
/* t->values_final[0] = cval[0]; */ /* UNUSED (reset again later). */
/* handle numeric-input stuff */
t->vec[0] = 2.0f * (cval[0] - sval[0]) / (maxx - minx);
applyNumInput(&t->num, &t->vec[0]);
t->values_final[0] = (maxx - minx) * t->vec[0] / 2.0f + sval[0];
headerTimeSlide(t, sval[0], str);
applyTimeSlideValue(t, sval[0], t->values_final[0]);
recalcData(t);
ED_area_status_text(t->area, str);
}
void initTimeSlide(TransInfo *t)
{
/* this tool is only really available in the Action Editor... */
if (t->spacetype == SPACE_ACTION) {
SpaceAction *saction = (SpaceAction *)t->area->spacedata.first;
/* set flag for drawing stuff */
saction->flag |= SACTION_MOVING;
}
else {
t->state = TRANS_CANCEL;
}
t->mode = TFM_TIME_SLIDE;
t->transform = applyTimeSlide;
initMouseInputMode(t, &t->mouse, INPUT_NONE);
{
Scene *scene = t->scene;
float *range;
t->custom.mode.data = range = MEM_mallocN(sizeof(float[2]), "TimeSlide Min/Max");
t->custom.mode.use_free = true;
float min = 999999999.0f, max = -999999999.0f;
int i;
FOREACH_TRANS_DATA_CONTAINER (t, tc) {
TransData *td = tc->data;
for (i = 0; i < tc->data_len; i++, td++) {
AnimData *adt = (t->spacetype != SPACE_NLA) ? td->extra : NULL;
float val = *(td->val);
/* strip/action time to global (mapped) time */
if (adt) {
val = BKE_nla_tweakedit_remap(adt, val, NLATIME_CONVERT_MAP);
}
if (min > val) {
min = val;
}
if (max < val) {
max = val;
}
}
}
if (min == max) {
/* just use the current frame ranges */
min = (float)PSFRA;
max = (float)PEFRA;
}
range[0] = min;
range[1] = max;
}
/* num-input has max of (n-1) */
t->idx_max = 0;
t->num.flag = 0;
t->num.idx_max = t->idx_max;
/* initialize snap like for everything else */
t->snap[0] = t->snap[1] = 1.0f;
copy_v3_fl(t->num.val_inc, t->snap[0]);
t->num.unit_sys = t->scene->unit.system;
/* No time unit supporting frames currently... */
t->num.unit_type[0] = B_UNIT_NONE;
}
/** \} */
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