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author | Campbell Barton <ideasman42@gmail.com> | 2018-03-19 20:06:27 +0300 |
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committer | Campbell Barton <ideasman42@gmail.com> | 2018-03-19 20:14:05 +0300 |
commit | 5e81d993afadc6b5d37410e91998395caf1d1281 (patch) | |
tree | ec57394bb9e74110a21b086678535e17c65524db /source/blender/editors/metaball/editmball_undo.c | |
parent | b5bf3011bf3851d1e68dbcdde310fff04dc3f2f5 (diff) | |
parent | a3486e735f7e5af6ca78dafc8608cced5a121096 (diff) |
Merge branch 'master' into blender2.8
Diffstat (limited to 'source/blender/editors/metaball/editmball_undo.c')
-rw-r--r-- | source/blender/editors/metaball/editmball_undo.c | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/source/blender/editors/metaball/editmball_undo.c b/source/blender/editors/metaball/editmball_undo.c new file mode 100644 index 00000000000..974bfb237d3 --- /dev/null +++ b/source/blender/editors/metaball/editmball_undo.c @@ -0,0 +1,131 @@ +/* + * ***** 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. + * + * ***** END GPL LICENSE BLOCK ***** + */ + +/** \file blender/editors/metaball/editmball_undo.c + * \ingroup edmeta + */ + +#include <math.h> +#include <string.h> + +#include "MEM_guardedalloc.h" + +#include "BLI_utildefines.h" +#include "BLI_listbase.h" + +#include "DNA_defs.h" +#include "DNA_meta_types.h" +#include "DNA_object_types.h" + +#include "BKE_context.h" + +#include "ED_mball.h" +#include "ED_util.h" + +typedef struct UndoMBall { + ListBase editelems; + int lastelem_index; +} UndoMBall; + +/* free all MetaElems from ListBase */ +static void freeMetaElemlist(ListBase *lb) +{ + MetaElem *ml; + + if (lb == NULL) { + return; + } + + while ((ml = BLI_pophead(lb))) { + MEM_freeN(ml); + } +} + +static void undoMball_to_editMball(void *umb_v, void *mb_v, void *UNUSED(obdata)) +{ + MetaBall *mb = mb_v; + UndoMBall *umb = umb_v; + + freeMetaElemlist(mb->editelems); + mb->lastelem = NULL; + + /* copy 'undo' MetaElems to 'edit' MetaElems */ + int index = 0; + for (MetaElem *ml_undo = umb->editelems.first; ml_undo; ml_undo = ml_undo->next, index += 1) { + MetaElem *ml_edit = MEM_dupallocN(ml_undo); + BLI_addtail(mb->editelems, ml_edit); + if (index == umb->lastelem_index) { + mb->lastelem = ml_edit; + } + } + +} + +static void *editMball_to_undoMball(void *mb_v, void *UNUSED(obdata)) +{ + MetaBall *mb = mb_v; + UndoMBall *umb; + + /* allocate memory for undo ListBase */ + umb = MEM_callocN(sizeof(UndoMBall), __func__); + umb->lastelem_index = -1; + + /* copy contents of current ListBase to the undo ListBase */ + int index = 0; + for (MetaElem *ml_edit = mb->editelems->first; ml_edit; ml_edit = ml_edit->next, index += 1) { + MetaElem *ml_undo = MEM_dupallocN(ml_edit); + BLI_addtail(&umb->editelems, ml_undo); + if (ml_edit == mb->lastelem) { + umb->lastelem_index = index; + } + } + + return umb; +} + +/* free undo ListBase of MetaElems */ +static void free_undoMball(void *umb_v) +{ + UndoMBall *umb = umb_v; + + freeMetaElemlist(&umb->editelems); + MEM_freeN(umb); +} + +static MetaBall *metaball_get_obdata(Object *ob) +{ + if (ob && ob->type == OB_MBALL) { + return ob->data; + } + return NULL; +} + + +static void *get_data(bContext *C) +{ + Object *obedit = CTX_data_edit_object(C); + return metaball_get_obdata(obedit); +} + +/* this is undo system for MetaBalls */ +void undo_push_mball(bContext *C, const char *name) +{ + undo_editmode_push(C, name, get_data, free_undoMball, undoMball_to_editMball, editMball_to_undoMball, NULL); +} |