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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* 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.
*
* Contributor(s): Blender Foundation, shapekey support
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/editors/object/object_shapekey.c
* \ingroup edobj
*/
#include <math.h>
#include <string.h>
#ifndef WIN32
#include <unistd.h>
#else
#include <io.h>
#endif
#include "MEM_guardedalloc.h"
#include "BLI_blenlib.h"
#include "BLI_math.h"
#include "BLI_utildefines.h"
#include "DNA_curve_types.h"
#include "DNA_key_types.h"
#include "DNA_lattice_types.h"
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_scene_types.h"
#include "DNA_object_types.h"
#include "BKE_context.h"
#include "BKE_depsgraph.h"
#include "BKE_key.h"
#include "BKE_library.h"
#include "BKE_main.h"
#include "BKE_object.h"
#include "BKE_curve.h"
#include "BLO_sys_types.h" // for intptr_t support
#include "ED_object.h"
#include "ED_mesh.h"
#include "RNA_access.h"
#include "RNA_define.h"
#include "WM_api.h"
#include "WM_types.h"
#include "object_intern.h"
/*********************** add shape key ***********************/
static void ED_object_shape_key_add(bContext *C, Scene *scene, Object *ob, int from_mix)
{
KeyBlock *kb;
if ((kb = BKE_object_insert_shape_key(scene, ob, NULL, from_mix))) {
Key *key = BKE_key_from_object(ob);
/* for absolute shape keys, new keys may not be added last */
ob->shapenr = BLI_findindex(&key->block, kb) + 1;
WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, ob);
}
}
/*********************** remove shape key ***********************/
static int ED_object_shape_key_remove(bContext *C, Object *ob)
{
Main *bmain = CTX_data_main(C);
KeyBlock *kb, *rkb;
Key *key;
//IpoCurve *icu;
key = BKE_key_from_object(ob);
if (key == NULL)
return 0;
kb = BLI_findlink(&key->block, ob->shapenr - 1);
if (kb) {
for (rkb = key->block.first; rkb; rkb = rkb->next)
if (rkb->relative == ob->shapenr - 1)
rkb->relative = 0;
BLI_remlink(&key->block, kb);
key->totkey--;
if (key->refkey == kb) {
key->refkey = key->block.first;
if (key->refkey) {
/* apply new basis key on original data */
switch (ob->type) {
case OB_MESH:
BKE_key_convert_to_mesh(key->refkey, ob->data);
break;
case OB_CURVE:
case OB_SURF:
BKE_key_convert_to_curve(key->refkey, ob->data, BKE_curve_nurbs_get(ob->data));
break;
case OB_LATTICE:
BKE_key_convert_to_lattice(key->refkey, ob->data);
break;
}
}
}
if (kb->data) MEM_freeN(kb->data);
MEM_freeN(kb);
if (ob->shapenr > 1) {
ob->shapenr--;
}
}
if (key->totkey == 0) {
switch (GS(key->from->name)) {
case ID_ME: ((Mesh *)key->from)->key = NULL; break;
case ID_CU: ((Curve *)key->from)->key = NULL; break;
case ID_LT: ((Lattice *)key->from)->key = NULL; break;
}
BKE_libblock_free_us(&(bmain->key), key);
}
DAG_id_tag_update(&ob->id, OB_RECALC_DATA);
WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, ob);
return 1;
}
static int object_shape_key_mirror(bContext *C, Object *ob)
{
KeyBlock *kb;
Key *key;
key = BKE_key_from_object(ob);
if (key == NULL)
return 0;
kb = BLI_findlink(&key->block, ob->shapenr - 1);
if (kb) {
char *tag_elem = MEM_callocN(sizeof(char) * kb->totelem, "shape_key_mirror");
if (ob->type == OB_MESH) {
Mesh *me = ob->data;
MVert *mv;
int i1, i2;
float *fp1, *fp2;
float tvec[3];
mesh_octree_table(ob, NULL, NULL, 's');
for (i1 = 0, mv = me->mvert; i1 < me->totvert; i1++, mv++) {
i2 = mesh_get_x_mirror_vert(ob, i1);
if (i2 == i1) {
fp1 = ((float *)kb->data) + i1 * 3;
fp1[0] = -fp1[0];
tag_elem[i1] = 1;
}
else if (i2 != -1) {
if (tag_elem[i1] == 0 && tag_elem[i2] == 0) {
fp1 = ((float *)kb->data) + i1 * 3;
fp2 = ((float *)kb->data) + i2 * 3;
copy_v3_v3(tvec, fp1);
copy_v3_v3(fp1, fp2);
copy_v3_v3(fp2, tvec);
/* flip x axis */
fp1[0] = -fp1[0];
fp2[0] = -fp2[0];
}
tag_elem[i1] = tag_elem[i2] = 1;
}
}
mesh_octree_table(ob, NULL, NULL, 'e');
}
else if (ob->type == OB_LATTICE) {
Lattice *lt = ob->data;
int i1, i2;
float *fp1, *fp2;
int u, v, w;
/* half but found up odd value */
const int pntsu_half = (lt->pntsu / 2) + (lt->pntsu % 2);
/* currently editmode isn't supported by mesh so
* ignore here for now too */
/* if (lt->editlatt) lt = lt->editlatt->latt; */
for (w = 0; w < lt->pntsw; w++) {
for (v = 0; v < lt->pntsv; v++) {
for (u = 0; u < pntsu_half; u++) {
int u_inv = (lt->pntsu - 1) - u;
float tvec[3];
if (u == u_inv) {
i1 = LT_INDEX(lt, u, v, w);
fp1 = ((float *)kb->data) + i1 * 3;
fp1[0] = -fp1[0];
}
else {
i1 = LT_INDEX(lt, u, v, w);
i2 = LT_INDEX(lt, u_inv, v, w);
fp1 = ((float *)kb->data) + i1 * 3;
fp2 = ((float *)kb->data) + i2 * 3;
copy_v3_v3(tvec, fp1);
copy_v3_v3(fp1, fp2);
copy_v3_v3(fp2, tvec);
fp1[0] = -fp1[0];
fp2[0] = -fp2[0];
}
}
}
}
}
MEM_freeN(tag_elem);
}
DAG_id_tag_update(&ob->id, OB_RECALC_DATA);
WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, ob);
return 1;
}
/********************** shape key operators *********************/
static int shape_key_mode_poll(bContext *C)
{
Object *ob = ED_object_context(C);
ID *data = (ob) ? ob->data : NULL;
return (ob && !ob->id.lib && data && !data->lib && ob->mode != OB_MODE_EDIT);
}
static int shape_key_poll(bContext *C)
{
Object *ob = ED_object_context(C);
ID *data = (ob) ? ob->data : NULL;
return (ob && !ob->id.lib && data && !data->lib);
}
static int shape_key_add_exec(bContext *C, wmOperator *op)
{
Scene *scene = CTX_data_scene(C);
Object *ob = ED_object_context(C);
int from_mix = RNA_boolean_get(op->ptr, "from_mix");
ED_object_shape_key_add(C, scene, ob, from_mix);
return OPERATOR_FINISHED;
}
void OBJECT_OT_shape_key_add(wmOperatorType *ot)
{
/* identifiers */
ot->name = "Add Shape Key";
ot->idname = "OBJECT_OT_shape_key_add";
ot->description = "Add shape key to the object";
/* api callbacks */
ot->poll = shape_key_mode_poll;
ot->exec = shape_key_add_exec;
/* flags */
ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
/* properties */
RNA_def_boolean(ot->srna, "from_mix", 1, "From Mix", "Create the new shape key from the existing mix of keys");
}
static int shape_key_remove_exec(bContext *C, wmOperator *UNUSED(op))
{
Object *ob = ED_object_context(C);
if (!ED_object_shape_key_remove(C, ob))
return OPERATOR_CANCELLED;
return OPERATOR_FINISHED;
}
void OBJECT_OT_shape_key_remove(wmOperatorType *ot)
{
/* identifiers */
ot->name = "Remove Shape Key";
ot->idname = "OBJECT_OT_shape_key_remove";
ot->description = "Remove shape key from the object";
/* api callbacks */
ot->poll = shape_key_mode_poll;
ot->exec = shape_key_remove_exec;
/* flags */
ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
}
static int shape_key_clear_exec(bContext *C, wmOperator *UNUSED(op))
{
Object *ob = ED_object_context(C);
Key *key = BKE_key_from_object(ob);
KeyBlock *kb = BKE_keyblock_from_object(ob);
if (!key || !kb)
return OPERATOR_CANCELLED;
for (kb = key->block.first; kb; kb = kb->next)
kb->curval = 0.0f;
DAG_id_tag_update(&ob->id, OB_RECALC_DATA);
WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, ob);
return OPERATOR_FINISHED;
}
void OBJECT_OT_shape_key_clear(wmOperatorType *ot)
{
/* identifiers */
ot->name = "Clear Shape Keys";
ot->description = "Clear weights for all shape keys";
ot->idname = "OBJECT_OT_shape_key_clear";
/* api callbacks */
ot->poll = shape_key_poll;
ot->exec = shape_key_clear_exec;
/* flags */
ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
}
/* starting point and step size could be optional */
static int shape_key_retime_exec(bContext *C, wmOperator *UNUSED(op))
{
Object *ob = ED_object_context(C);
Key *key = BKE_key_from_object(ob);
KeyBlock *kb = BKE_keyblock_from_object(ob);
float cfra = 0.0f;
if (!key || !kb)
return OPERATOR_CANCELLED;
for (kb = key->block.first; kb; kb = kb->next)
kb->pos = (cfra += 0.1f);
DAG_id_tag_update(&ob->id, OB_RECALC_DATA);
WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, ob);
return OPERATOR_FINISHED;
}
void OBJECT_OT_shape_key_retime(wmOperatorType *ot)
{
/* identifiers */
ot->name = "Re-Time Shape Keys";
ot->description = "Resets the timing for absolute shape keys";
ot->idname = "OBJECT_OT_shape_key_retime";
/* api callbacks */
ot->poll = shape_key_poll;
ot->exec = shape_key_retime_exec;
/* flags */
ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
}
static int shape_key_mirror_exec(bContext *C, wmOperator *UNUSED(op))
{
Object *ob = ED_object_context(C);
if (!object_shape_key_mirror(C, ob))
return OPERATOR_CANCELLED;
return OPERATOR_FINISHED;
}
void OBJECT_OT_shape_key_mirror(wmOperatorType *ot)
{
/* identifiers */
ot->name = "Mirror Shape Key";
ot->idname = "OBJECT_OT_shape_key_mirror";
ot->description = "Mirror the current shape key along the local X axis";
/* api callbacks */
ot->poll = shape_key_mode_poll;
ot->exec = shape_key_mirror_exec;
/* flags */
ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
}
static int shape_key_move_exec(bContext *C, wmOperator *op)
{
Object *ob = ED_object_context(C);
int type = RNA_enum_get(op->ptr, "type");
Key *key = BKE_key_from_object(ob);
if (key) {
KeyBlock *kb, *kb_other;
int shapenr_act = ob->shapenr - 1;
int shapenr_swap = shapenr_act + type;
kb = BLI_findlink(&key->block, shapenr_act);
if ((type == -1 && kb->prev == NULL) || (type == 1 && kb->next == NULL)) {
return OPERATOR_CANCELLED;
}
for (kb_other = key->block.first; kb_other; kb_other = kb_other->next) {
if (kb_other->relative == shapenr_act) {
kb_other->relative += type;
}
else if (kb_other->relative == shapenr_swap) {
kb_other->relative -= type;
}
}
if (type == -1) {
/* move back */
kb_other = kb->prev;
BLI_remlink(&key->block, kb);
BLI_insertlinkbefore(&key->block, kb_other, kb);
ob->shapenr--;
}
else {
/* move next */
kb_other = kb->next;
BLI_remlink(&key->block, kb);
BLI_insertlinkafter(&key->block, kb_other, kb);
ob->shapenr++;
}
SWAP(float, kb_other->pos, kb->pos); /* for absolute shape keys */
}
/* First key is refkey, matches interface and BKE_key_sort */
key->refkey = key->block.first;
DAG_id_tag_update(&ob->id, OB_RECALC_DATA);
WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, ob);
return OPERATOR_FINISHED;
}
void OBJECT_OT_shape_key_move(wmOperatorType *ot)
{
static EnumPropertyItem slot_move[] = {
{-1, "UP", 0, "Up", ""},
{1, "DOWN", 0, "Down", ""},
{0, NULL, 0, NULL, NULL}
};
/* identifiers */
ot->name = "Move Shape Key";
ot->idname = "OBJECT_OT_shape_key_move";
ot->description = "Move the active shape key up/down in the list";
/* api callbacks */
ot->poll = shape_key_mode_poll;
ot->exec = shape_key_move_exec;
/* flags */
ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
RNA_def_enum(ot->srna, "type", slot_move, 0, "Type", "");
}
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