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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
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/editors/lattice/editlattice_undo.c
* \ingroup edlattice
*/
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include "MEM_guardedalloc.h"
#include "BLI_utildefines.h"
#include "DNA_curve_types.h"
#include "DNA_lattice_types.h"
#include "DNA_object_types.h"
#include "DNA_scene_types.h"
#include "BKE_context.h"
#include "ED_lattice.h"
#include "ED_util.h"
#include "lattice_intern.h"
typedef struct UndoLattice {
BPoint *def;
int pntsu, pntsv, pntsw, actbp;
} UndoLattice;
static void undoLatt_to_editLatt(void *data, void *edata, void *UNUSED(obdata))
{
UndoLattice *ult = (UndoLattice *)data;
EditLatt *editlatt = (EditLatt *)edata;
int a = editlatt->latt->pntsu * editlatt->latt->pntsv * editlatt->latt->pntsw;
memcpy(editlatt->latt->def, ult->def, a * sizeof(BPoint));
editlatt->latt->actbp = ult->actbp;
}
static void *editLatt_to_undoLatt(void *edata, void *UNUSED(obdata))
{
UndoLattice *ult = MEM_callocN(sizeof(UndoLattice), "UndoLattice");
EditLatt *editlatt = (EditLatt *)edata;
ult->def = MEM_dupallocN(editlatt->latt->def);
ult->pntsu = editlatt->latt->pntsu;
ult->pntsv = editlatt->latt->pntsv;
ult->pntsw = editlatt->latt->pntsw;
ult->actbp = editlatt->latt->actbp;
return ult;
}
static void free_undoLatt(void *data)
{
UndoLattice *ult = (UndoLattice *)data;
if (ult->def) MEM_freeN(ult->def);
MEM_freeN(ult);
}
static int validate_undoLatt(void *data, void *edata)
{
UndoLattice *ult = (UndoLattice *)data;
EditLatt *editlatt = (EditLatt *)edata;
return (ult->pntsu == editlatt->latt->pntsu &&
ult->pntsv == editlatt->latt->pntsv &&
ult->pntsw == editlatt->latt->pntsw);
}
static void *get_editlatt(bContext *C)
{
Object *obedit = CTX_data_edit_object(C);
if (obedit && obedit->type == OB_LATTICE) {
Lattice *lt = obedit->data;
return lt->editlatt;
}
return NULL;
}
/* and this is all the undo system needs to know */
void undo_push_lattice(bContext *C, const char *name)
{
undo_editmode_push(C, name, get_editlatt, free_undoLatt, undoLatt_to_editLatt, editLatt_to_undoLatt, validate_undoLatt);
}
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