490 lines
19 KiB
C
490 lines
19 KiB
C
/**
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* $Id$
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*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* Contributor(s): Blender Foundation (2009), Joshua Leung
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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#include <stdlib.h>
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#include "RNA_define.h"
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#include "RNA_types.h"
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#include "rna_internal.h"
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#include "DNA_anim_types.h"
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#include "DNA_action_types.h"
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#include "DNA_scene_types.h"
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#include "MEM_guardedalloc.h"
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#ifdef RNA_RUNTIME
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#include <stdio.h>
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#include <math.h>
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/* needed for some of the validation stuff... */
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#include "BKE_animsys.h"
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#include "BKE_nla.h"
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/* temp constant defined for these funcs only... */
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#define NLASTRIP_MIN_LEN_THRESH 0.1f
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static void rna_NlaStrip_name_set(PointerRNA *ptr, const char *value)
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{
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NlaStrip *data= (NlaStrip *)ptr->data;
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/* copy the name first */
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BLI_strncpy(data->name, value, sizeof(data->name));
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/* validate if there's enough info to do so */
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if (ptr->id.data) {
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AnimData *adt= BKE_animdata_from_id(ptr->id.data);
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BKE_nlastrip_validate_name(adt, data);
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}
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}
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static char *rna_NlaStrip_path(PointerRNA *ptr)
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{
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NlaStrip *strip= (NlaStrip *)ptr->data;
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AnimData *adt= BKE_animdata_from_id(ptr->id.data);
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/* if we're attached to AnimData, try to resolve path back to AnimData */
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if (adt) {
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NlaTrack *nlt;
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NlaStrip *nls;
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for (nlt= adt->nla_tracks.first; nlt; nlt= nlt->next) {
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for (nls = nlt->strips.first; nls; nls = nls->next) {
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if (nls == strip) {
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// XXX but if we animate like this, the control will never work...
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return BLI_sprintfN("animation_data.nla_tracks[\"%s\"].strips[\"%s\"]", nlt->name, strip->name);
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}
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}
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}
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}
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/* no path */
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return "";
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}
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static void rna_NlaStrip_transform_update(Main *bmain, Scene *scene, PointerRNA *ptr)
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{
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NlaStrip *strip= (NlaStrip*)ptr->data;
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BKE_nlameta_flush_transforms(strip);
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}
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static void rna_NlaStrip_start_frame_set(PointerRNA *ptr, float value)
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{
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NlaStrip *data= (NlaStrip*)ptr->data;
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/* clamp value to lie within valid limits
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* - cannot start past the end of the strip + some flexibility threshold
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* - cannot start before the previous strip (if present) ends
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* -> but if it was a transition, we could go up to the start of the strip + some flexibility threshold
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* as long as we re-adjust the transition afterwards
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* - minimum frame is -MAXFRAME so that we don't get clipping on frame 0
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*/
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if (data->prev) {
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if (data->prev->type == NLASTRIP_TYPE_TRANSITION) {
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CLAMP(value, data->prev->start+NLASTRIP_MIN_LEN_THRESH, data->end-NLASTRIP_MIN_LEN_THRESH);
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/* readjust the transition to stick to the endpoints of the action-clips */
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data->prev->end= value;
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}
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else {
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CLAMP(value, data->prev->end, data->end-NLASTRIP_MIN_LEN_THRESH);
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}
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}
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else {
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CLAMP(value, MINAFRAME, data->end);
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}
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data->start= value;
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}
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static void rna_NlaStrip_end_frame_set(PointerRNA *ptr, float value)
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{
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NlaStrip *data= (NlaStrip*)ptr->data;
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/* clamp value to lie within valid limits
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* - must not have zero or negative length strip, so cannot start before the first frame
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* + some minimum-strip-length threshold
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* - cannot end later than the start of the next strip (if present)
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* -> but if it was a transition, we could go up to the start of the end - some flexibility threshold
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* as long as we re-adjust the transition afterwards
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*/
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if (data->next) {
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if (data->next->type == NLASTRIP_TYPE_TRANSITION) {
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CLAMP(value, data->start+NLASTRIP_MIN_LEN_THRESH, data->next->end-NLASTRIP_MIN_LEN_THRESH);
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/* readjust the transition to stick to the endpoints of the action-clips */
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data->next->start= value;
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}
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else {
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CLAMP(value, data->start+NLASTRIP_MIN_LEN_THRESH, data->next->start);
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}
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}
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else {
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CLAMP(value, data->start+NLASTRIP_MIN_LEN_THRESH, MAXFRAME);
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}
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data->end= value;
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/* calculate the lengths the strip and its action (if applicable) */
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if (data->type == NLASTRIP_TYPE_CLIP) {
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float len, actlen;
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len= data->end - data->start;
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actlen= data->actend - data->actstart;
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if (IS_EQ(actlen, 0.0f)) actlen= 1.0f;
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/* now, adjust the 'scale' setting to reflect this (so that this change can be valid) */
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data->scale= len / ((actlen) * data->repeat);
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}
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}
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static void rna_NlaStrip_scale_set(PointerRNA *ptr, float value)
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{
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NlaStrip *data= (NlaStrip*)ptr->data;
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/* set scale value */
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CLAMP(value, 0.0001f, 1000.0f); /* NOTE: these need to be synced with the values in the property definition in rna_def_nlastrip() */
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data->scale= value;
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/* adjust the strip extents in response to this */
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BKE_nlastrip_recalculate_bounds(data);
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}
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static void rna_NlaStrip_repeat_set(PointerRNA *ptr, float value)
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{
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NlaStrip *data= (NlaStrip*)ptr->data;
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/* set repeat value */
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CLAMP(value, 0.01f, 1000.0f); /* NOTE: these need to be synced with the values in the property definition in rna_def_nlastrip() */
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data->repeat= value;
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/* adjust the strip extents in response to this */
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BKE_nlastrip_recalculate_bounds(data);
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}
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static void rna_NlaStrip_blend_in_set(PointerRNA *ptr, float value)
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{
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NlaStrip *data= (NlaStrip*)ptr->data;
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float len;
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/* blend-in is limited to the length of the strip, and also cannot overlap with blendout */
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len= (data->end - data->start) - data->blendout;
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CLAMP(value, 0, len);
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data->blendin= value;
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}
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static void rna_NlaStrip_blend_out_set(PointerRNA *ptr, float value)
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{
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NlaStrip *data= (NlaStrip*)ptr->data;
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float len;
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/* blend-out is limited to the length of the strip */
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len= (data->end - data->start);
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CLAMP(value, 0, len);
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/* it also cannot overlap with blendin */
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if ((len - value) < data->blendin)
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value= len - data->blendin;
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data->blendout= value;
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}
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static void rna_NlaStrip_action_start_frame_set(PointerRNA *ptr, float value)
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{
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NlaStrip *data= (NlaStrip*)ptr->data;
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/* prevent start frame from occurring after end of action */
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CLAMP(value, MINAFRAME, data->actend);
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data->actstart= value;
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/* adjust the strip extents in response to this */
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// TODO: should the strip be moved backwards instead as a special case?
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BKE_nlastrip_recalculate_bounds(data);
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}
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static void rna_NlaStrip_action_end_frame_set(PointerRNA *ptr, float value)
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{
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NlaStrip *data= (NlaStrip*)ptr->data;
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/* prevent end frame from starting before start of action */
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CLAMP(value, data->actstart, MAXFRAME);
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data->actend= value;
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/* adjust the strip extents in response to this */
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BKE_nlastrip_recalculate_bounds(data);
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}
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static void rna_NlaStrip_animated_influence_set(PointerRNA *ptr, int value)
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{
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NlaStrip *data= (NlaStrip*)ptr->data;
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if (value) {
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/* set the flag, then make sure a curve for this exists */
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data->flag |= NLASTRIP_FLAG_USR_INFLUENCE;
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BKE_nlastrip_validate_fcurves(data);
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}
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else
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data->flag &= ~NLASTRIP_FLAG_USR_INFLUENCE;
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}
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static void rna_NlaStrip_animated_time_set(PointerRNA *ptr, int value)
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{
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NlaStrip *data= (NlaStrip*)ptr->data;
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if (value) {
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/* set the flag, then make sure a curve for this exists */
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data->flag |= NLASTRIP_FLAG_USR_TIME;
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BKE_nlastrip_validate_fcurves(data);
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}
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else
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data->flag &= ~NLASTRIP_FLAG_USR_TIME;
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}
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#else
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/* enum defines exported for rna_animation.c */
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EnumPropertyItem nla_mode_blend_items[] = {
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{NLASTRIP_MODE_REPLACE, "REPLACE", 0, "Replace", "Result strip replaces the accumulated results by amount specified by influence"},
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{NLASTRIP_MODE_ADD, "ADD", 0, "Add", "Weighted result of strip is added to the accumlated results"},
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{NLASTRIP_MODE_SUBTRACT, "SUBTRACT", 0, "Subtract", "Weighted result of strip is removed from the accumlated results"},
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{NLASTRIP_MODE_MULTIPLY, "MULITPLY", 0, "Multiply", "Weighted result of strip is multiplied with the accumlated results"},
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{0, NULL, 0, NULL, NULL}};
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EnumPropertyItem nla_mode_extend_items[] = {
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{NLASTRIP_EXTEND_NOTHING, "NOTHING", 0, "Nothing", "Strip has no influence past its extents"},
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{NLASTRIP_EXTEND_HOLD, "HOLD", 0, "Hold", "Hold the first frame if no previous strips in track, and always hold last frame"},
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{NLASTRIP_EXTEND_HOLD_FORWARD, "HOLD_FORWARD", 0, "Hold Forward", "Only hold last frame"},
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{0, NULL, 0, NULL, NULL}};
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static void rna_def_nlastrip(BlenderRNA *brna)
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{
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StructRNA *srna;
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PropertyRNA *prop;
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/* enum defs */
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static EnumPropertyItem prop_type_items[] = {
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{NLASTRIP_TYPE_CLIP, "CLIP", 0, "Action Clip", "NLA Strip references some Action"},
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{NLASTRIP_TYPE_TRANSITION, "TRANSITION", 0, "Transition", "NLA Strip 'transitions' between adjacent strips"},
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{NLASTRIP_TYPE_META, "META", 0, "Meta", "NLA Strip acts as a container for adjacent strips"},
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{0, NULL, 0, NULL, NULL}};
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/* struct definition */
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srna= RNA_def_struct(brna, "NlaStrip", NULL);
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RNA_def_struct_ui_text(srna, "NLA Strip", "A container referencing an existing Action");
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RNA_def_struct_path_func(srna, "rna_NlaStrip_path");
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RNA_def_struct_ui_icon(srna, ICON_NLA); // XXX
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/* name property */
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prop= RNA_def_property(srna, "name", PROP_STRING, PROP_NONE);
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RNA_def_property_ui_text(prop, "Name", "");
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RNA_def_property_string_funcs(prop, NULL, NULL, "rna_NlaStrip_name_set");
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RNA_def_struct_name_property(srna, prop);
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/* Enums */
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prop= RNA_def_property(srna, "type", PROP_ENUM, PROP_NONE);
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RNA_def_property_enum_sdna(prop, NULL, "type");
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RNA_def_property_clear_flag(prop, PROP_EDITABLE); // XXX for now, not editable, since this is dangerous
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RNA_def_property_enum_items(prop, prop_type_items);
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RNA_def_property_ui_text(prop, "Type", "Type of NLA Strip");
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prop= RNA_def_property(srna, "extrapolation", PROP_ENUM, PROP_NONE);
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RNA_def_property_enum_sdna(prop, NULL, "extendmode");
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RNA_def_property_enum_items(prop, nla_mode_extend_items);
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RNA_def_property_ui_text(prop, "Extrapolation", "Action to take for gaps past the strip extents");
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prop= RNA_def_property(srna, "blending", PROP_ENUM, PROP_NONE);
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RNA_def_property_enum_sdna(prop, NULL, "blendmode");
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RNA_def_property_enum_items(prop, nla_mode_blend_items);
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RNA_def_property_ui_text(prop, "Blending", "Method used for combining strip's result with accumulated result");
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/* Strip extents */
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prop= RNA_def_property(srna, "start_frame", PROP_FLOAT, PROP_TIME);
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RNA_def_property_float_sdna(prop, NULL, "start");
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RNA_def_property_float_funcs(prop, NULL, "rna_NlaStrip_start_frame_set", NULL);
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RNA_def_property_ui_text(prop, "Start Frame", "");
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RNA_def_property_update(prop, 0, "rna_NlaStrip_transform_update");
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prop= RNA_def_property(srna, "end_frame", PROP_FLOAT, PROP_TIME);
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RNA_def_property_float_sdna(prop, NULL, "end");
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RNA_def_property_float_funcs(prop, NULL, "rna_NlaStrip_end_frame_set", NULL);
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RNA_def_property_ui_text(prop, "End Frame", "");
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RNA_def_property_update(prop, 0, "rna_NlaStrip_transform_update");
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/* Blending */
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prop= RNA_def_property(srna, "blend_in", PROP_FLOAT, PROP_NONE);
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RNA_def_property_float_sdna(prop, NULL, "blendin");
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RNA_def_property_float_funcs(prop, NULL, "rna_NlaStrip_blend_in_set", NULL);
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RNA_def_property_ui_text(prop, "Blend In", "Number of frames at start of strip to fade in influence");
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prop= RNA_def_property(srna, "blend_out", PROP_FLOAT, PROP_NONE);
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RNA_def_property_float_sdna(prop, NULL, "blendout");
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RNA_def_property_float_funcs(prop, NULL, "rna_NlaStrip_blend_out_set", NULL);
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RNA_def_property_ui_text(prop, "Blend Out", "");
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prop= RNA_def_property(srna, "auto_blending", PROP_BOOLEAN, PROP_NONE);
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RNA_def_property_boolean_sdna(prop, NULL, "flag", NLASTRIP_FLAG_AUTO_BLENDS);
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RNA_def_property_ui_text(prop, "Auto Blend In/Out", "Number of frames for Blending In/Out is automatically determined from overlapping strips");
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/* Action */
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prop= RNA_def_property(srna, "action", PROP_POINTER, PROP_NONE);
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RNA_def_property_pointer_sdna(prop, NULL, "act");
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RNA_def_property_flag(prop, PROP_EDITABLE);
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RNA_def_property_ui_text(prop, "Action", "Action referenced by this strip");
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/* Action extents */
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prop= RNA_def_property(srna, "action_start_frame", PROP_FLOAT, PROP_TIME);
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RNA_def_property_float_sdna(prop, NULL, "actstart");
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RNA_def_property_float_funcs(prop, NULL, "rna_NlaStrip_action_start_frame_set", NULL);
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RNA_def_property_ui_text(prop, "Action Start Frame", "");
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prop= RNA_def_property(srna, "action_end_frame", PROP_FLOAT, PROP_TIME);
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RNA_def_property_float_sdna(prop, NULL, "actend");
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RNA_def_property_float_funcs(prop, NULL, "rna_NlaStrip_action_end_frame_set", NULL);
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RNA_def_property_ui_text(prop, "Action End Frame", "");
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/* Action Reuse */
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prop= RNA_def_property(srna, "repeat", PROP_FLOAT, PROP_NONE);
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RNA_def_property_float_sdna(prop, NULL, "repeat");
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RNA_def_property_float_funcs(prop, NULL, "rna_NlaStrip_repeat_set", NULL);
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RNA_def_property_range(prop, 0.1f, 1000.0f); /* these limits have currently be chosen arbitarily, but could be extended (minimum should still be > 0 though) if needed... */
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RNA_def_property_ui_text(prop, "Repeat", "Number of times to repeat the action range");
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prop= RNA_def_property(srna, "scale", PROP_FLOAT, PROP_NONE);
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RNA_def_property_float_sdna(prop, NULL, "scale");
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RNA_def_property_float_funcs(prop, NULL, "rna_NlaStrip_scale_set", NULL);
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RNA_def_property_range(prop, 0.0001f, 1000.0f); /* these limits can be extended, but beyond this, we can get some crazy+annoying bugs due to numeric errors */
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RNA_def_property_ui_text(prop, "Scale", "Scaling factor for action");
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/* Strip's F-Curves */
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prop= RNA_def_property(srna, "fcurves", PROP_COLLECTION, PROP_NONE);
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RNA_def_property_struct_type(prop, "FCurve");
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RNA_def_property_ui_text(prop, "F-Curves", "F-Curves for controlling the strip's influence and timing");
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/* Strip's F-Modifiers */
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prop= RNA_def_property(srna, "modifiers", PROP_COLLECTION, PROP_NONE);
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RNA_def_property_struct_type(prop, "FModifier");
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RNA_def_property_ui_text(prop, "Modifiers", "Modifiers affecting all the F-Curves in the referenced Action");
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/* Strip's Sub-Strips (for Meta-Strips) */
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prop= RNA_def_property(srna, "strips", PROP_COLLECTION, PROP_NONE);
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RNA_def_property_struct_type(prop, "NlaStrip");
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RNA_def_property_ui_text(prop, "NLA Strips", "NLA Strips that this strip acts as a container for (if it is of type Meta)");
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/* Settings - Values necessary for evaluation */
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prop= RNA_def_property(srna, "influence", PROP_FLOAT, PROP_NONE);
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RNA_def_property_range(prop, 0.0f, 1.0f);
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RNA_def_property_ui_text(prop, "Influence", "Amount the strip contributes to the current result");
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prop= RNA_def_property(srna, "strip_time", PROP_FLOAT, PROP_TIME);
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RNA_def_property_ui_text(prop, "Strip Time", "Frame of referenced Action to evaluate");
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// TODO: should the animated_influence/time settings be animatable themselves?
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prop= RNA_def_property(srna, "animated_influence", PROP_BOOLEAN, PROP_NONE);
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RNA_def_property_boolean_sdna(prop, NULL, "flag", NLASTRIP_FLAG_USR_INFLUENCE);
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RNA_def_property_boolean_funcs(prop, NULL, "rna_NlaStrip_animated_influence_set");
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RNA_def_property_ui_text(prop, "Animated Influence", "Influence setting is controlled by an F-Curve rather than automatically determined");
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prop= RNA_def_property(srna, "animated_time", PROP_BOOLEAN, PROP_NONE);
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RNA_def_property_boolean_sdna(prop, NULL, "flag", NLASTRIP_FLAG_USR_TIME);
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RNA_def_property_boolean_funcs(prop, NULL, "rna_NlaStrip_animated_time_set");
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RNA_def_property_ui_text(prop, "Animated Strip Time", "Strip time is controlled by an F-Curve rather than automatically determined");
|
|
|
|
/* settings */
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|
prop= RNA_def_property(srna, "active", PROP_BOOLEAN, PROP_NONE);
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RNA_def_property_clear_flag(prop, PROP_EDITABLE); /* can be made editable by hooking it up to the necessary NLA API methods */
|
|
RNA_def_property_boolean_sdna(prop, NULL, "flag", NLASTRIP_FLAG_ACTIVE);
|
|
RNA_def_property_ui_text(prop, "Active", "NLA Strip is active");
|
|
|
|
prop= RNA_def_property(srna, "selected", PROP_BOOLEAN, PROP_NONE);
|
|
RNA_def_property_boolean_sdna(prop, NULL, "flag", NLASTRIP_FLAG_SELECT);
|
|
RNA_def_property_ui_text(prop, "Selected", "NLA Strip is selected");
|
|
|
|
prop= RNA_def_property(srna, "muted", PROP_BOOLEAN, PROP_NONE);
|
|
RNA_def_property_boolean_sdna(prop, NULL, "flag", NLASTRIP_FLAG_MUTED);
|
|
RNA_def_property_ui_text(prop, "Muted", "NLA Strip is not evaluated");
|
|
|
|
prop= RNA_def_property(srna, "reversed", PROP_BOOLEAN, PROP_NONE);
|
|
RNA_def_property_boolean_sdna(prop, NULL, "flag", NLASTRIP_FLAG_REVERSE);
|
|
RNA_def_property_ui_text(prop, "Reversed", "NLA Strip is played back in reverse order (only when timing is automatically determined)");
|
|
|
|
// TODO:
|
|
// - sync length
|
|
}
|
|
|
|
static void rna_def_nlatrack(BlenderRNA *brna)
|
|
{
|
|
StructRNA *srna;
|
|
PropertyRNA *prop;
|
|
|
|
srna= RNA_def_struct(brna, "NlaTrack", NULL);
|
|
RNA_def_struct_ui_text(srna, "NLA Track", "A animation layer containing Actions referenced as NLA strips");
|
|
RNA_def_struct_ui_icon(srna, ICON_NLA);
|
|
|
|
/* strips collection */
|
|
prop= RNA_def_property(srna, "strips", PROP_COLLECTION, PROP_NONE);
|
|
RNA_def_property_struct_type(prop, "NlaStrip");
|
|
RNA_def_property_ui_text(prop, "NLA Strips", "NLA Strips on this NLA-track");
|
|
|
|
/* name property */
|
|
prop= RNA_def_property(srna, "name", PROP_STRING, PROP_NONE);
|
|
RNA_def_property_ui_text(prop, "Name", "");
|
|
RNA_def_struct_name_property(srna, prop);
|
|
|
|
/* settings */
|
|
prop= RNA_def_property(srna, "active", PROP_BOOLEAN, PROP_NONE);
|
|
RNA_def_property_clear_flag(prop, PROP_EDITABLE); /* can be made editable by hooking it up to the necessary NLA API methods */
|
|
RNA_def_property_boolean_sdna(prop, NULL, "flag", NLATRACK_ACTIVE);
|
|
RNA_def_property_ui_text(prop, "Active", "NLA Track is active");
|
|
|
|
prop= RNA_def_property(srna, "solo", PROP_BOOLEAN, PROP_NONE);
|
|
RNA_def_property_clear_flag(prop, PROP_EDITABLE); /* can be made editable by hooking it up to the necessary NLA API methods */
|
|
RNA_def_property_boolean_sdna(prop, NULL, "flag", NLATRACK_SOLO);
|
|
RNA_def_property_ui_text(prop, "Solo", "NLA Track is evaluated itself (i.e. active Action and all other NLA Tracks in the same AnimData block are disabled)");
|
|
|
|
prop= RNA_def_property(srna, "selected", PROP_BOOLEAN, PROP_NONE);
|
|
RNA_def_property_boolean_sdna(prop, NULL, "flag", NLATRACK_SELECTED);
|
|
RNA_def_property_ui_text(prop, "Selected", "NLA Track is selected");
|
|
|
|
prop= RNA_def_property(srna, "muted", PROP_BOOLEAN, PROP_NONE);
|
|
RNA_def_property_boolean_sdna(prop, NULL, "flag", NLATRACK_MUTED);
|
|
RNA_def_property_ui_text(prop, "Muted", "NLA Track is not evaluated");
|
|
|
|
prop= RNA_def_property(srna, "locked", PROP_BOOLEAN, PROP_NONE);
|
|
RNA_def_property_boolean_sdna(prop, NULL, "flag", NLATRACK_PROTECTED);
|
|
RNA_def_property_ui_text(prop, "Locked", "NLA Track is locked");
|
|
}
|
|
|
|
/* --------- */
|
|
|
|
void RNA_def_nla(BlenderRNA *brna)
|
|
{
|
|
rna_def_nlatrack(brna);
|
|
rna_def_nlastrip(brna);
|
|
}
|
|
|
|
|
|
#endif
|