diff options
Diffstat (limited to 'source/blender/editors/lattice/editlattice_undo.c')
-rw-r--r-- | source/blender/editors/lattice/editlattice_undo.c | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/source/blender/editors/lattice/editlattice_undo.c b/source/blender/editors/lattice/editlattice_undo.c new file mode 100644 index 00000000000..aa817928f92 --- /dev/null +++ b/source/blender/editors/lattice/editlattice_undo.c @@ -0,0 +1,113 @@ +/* + * ***** 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); +} |