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/*
* $Id$
*
* ***** 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) 2004 Blender Foundation
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/editors/util/undo.c
* \ingroup edutil
*/
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include "MEM_guardedalloc.h"
#include "DNA_object_types.h"
#include "BLI_blenlib.h"
#include "BLI_editVert.h"
#include "BLI_dynstr.h"
#include "BLI_utildefines.h"
#include "BKE_blender.h"
#include "BKE_context.h"
#include "BKE_global.h"
#include "BKE_screen.h"
#include "ED_armature.h"
#include "ED_particle.h"
#include "ED_curve.h"
#include "ED_mball.h"
#include "ED_mesh.h"
#include "ED_object.h"
#include "ED_screen.h"
#include "ED_sculpt.h"
#include "ED_util.h"
#include "ED_text.h"
#include "WM_api.h"
#include "WM_types.h"
#include "RNA_access.h"
#include "RNA_define.h"
#include "util_intern.h"
#define MAXUNDONAME 64 /* XXX, make common define */
/* ***************** generic undo system ********************* */
void ED_undo_push(bContext *C, const char *str)
{
wmWindowManager *wm= CTX_wm_manager(C);
Object *obedit= CTX_data_edit_object(C);
Object *obact= CTX_data_active_object(C);
if (G.f & G_DEBUG)
printf("undo push %s\n", str);
if(obedit) {
if (U.undosteps == 0) return;
if(obedit->type==OB_MESH)
undo_push_mesh(C, str);
else if ELEM(obedit->type, OB_CURVE, OB_SURF)
undo_push_curve(C, str);
else if (obedit->type==OB_FONT)
undo_push_font(C, str);
else if (obedit->type==OB_MBALL)
undo_push_mball(C, str);
else if (obedit->type==OB_LATTICE)
undo_push_lattice(C, str);
else if (obedit->type==OB_ARMATURE)
undo_push_armature(C, str);
}
else if(obact && obact->mode & OB_MODE_PARTICLE_EDIT) {
if (U.undosteps == 0) return;
PE_undo_push(CTX_data_scene(C), str);
}
else {
if(U.uiflag & USER_GLOBALUNDO)
BKE_write_undo(C, str);
}
if(wm->file_saved) {
wm->file_saved= 0;
WM_event_add_notifier(C, NC_WM|ND_DATACHANGED, NULL);
}
}
static int ed_undo_step(bContext *C, int step, const char *undoname)
{
Object *obedit= CTX_data_edit_object(C);
Object *obact= CTX_data_active_object(C);
ScrArea *sa= CTX_wm_area(C);
if(sa && sa->spacetype==SPACE_IMAGE) {
SpaceImage *sima= (SpaceImage *)sa->spacedata.first;
if((obact && obact->mode & OB_MODE_TEXTURE_PAINT) || sima->flag & SI_DRAWTOOL) {
if(!ED_undo_paint_step(C, UNDO_PAINT_IMAGE, step, undoname) && undoname)
if(U.uiflag & USER_GLOBALUNDO)
BKE_undo_name(C, undoname);
WM_event_add_notifier(C, NC_WINDOW, NULL);
return OPERATOR_FINISHED;
}
}
if(sa && sa->spacetype==SPACE_TEXT) {
ED_text_undo_step(C, step);
}
else if(obedit) {
if ELEM7(obedit->type, OB_MESH, OB_FONT, OB_CURVE, OB_SURF, OB_MBALL, OB_LATTICE, OB_ARMATURE) {
if(undoname)
undo_editmode_name(C, undoname);
else
undo_editmode_step(C, step);
WM_event_add_notifier(C, NC_GEOM|ND_DATA, NULL);
}
}
else {
int do_glob_undo= 0;
if(obact && obact->mode & OB_MODE_TEXTURE_PAINT) {
if(!ED_undo_paint_step(C, UNDO_PAINT_IMAGE, step, undoname) && undoname)
do_glob_undo= 1;
}
else if(obact && obact->mode & OB_MODE_SCULPT) {
if(!ED_undo_paint_step(C, UNDO_PAINT_MESH, step, undoname) && undoname)
do_glob_undo= 1;
}
else if(obact && obact->mode & OB_MODE_PARTICLE_EDIT) {
if(step==1)
PE_undo(CTX_data_scene(C));
else
PE_redo(CTX_data_scene(C));
}
else {
do_glob_undo= 1;
}
if(do_glob_undo) {
if(U.uiflag & USER_GLOBALUNDO) {
// note python defines not valid here anymore.
//#ifdef WITH_PYTHON
// XXX BPY_scripts_clear_pyobjects();
//#endif
if(undoname)
BKE_undo_name(C, undoname);
else
BKE_undo_step(C, step);
WM_event_add_notifier(C, NC_SCENE|ND_LAYER_CONTENT, CTX_data_scene(C));
}
}
}
WM_event_add_notifier(C, NC_WINDOW, NULL);
return OPERATOR_FINISHED;
}
void ED_undo_pop(bContext *C)
{
ed_undo_step(C, 1, NULL);
}
void ED_undo_redo(bContext *C)
{
ed_undo_step(C, -1, NULL);
}
void ED_undo_push_op(bContext *C, wmOperator *op)
{
/* in future, get undo string info? */
ED_undo_push(C, op->type->name);
}
void ED_undo_pop_op(bContext *C, wmOperator *op)
{
/* search back a couple of undo's, in case something else added pushes */
ed_undo_step(C, 0, op->type->name);
}
/* name optionally, function used to check for operator redo panel */
int ED_undo_valid(const bContext *C, const char *undoname)
{
Object *obedit= CTX_data_edit_object(C);
Object *obact= CTX_data_active_object(C);
ScrArea *sa= CTX_wm_area(C);
if(sa && sa->spacetype==SPACE_IMAGE) {
SpaceImage *sima= (SpaceImage *)sa->spacedata.first;
if((obact && obact->mode & OB_MODE_TEXTURE_PAINT) || sima->flag & SI_DRAWTOOL) {
return 1;
}
}
if(sa && sa->spacetype==SPACE_TEXT) {
return 1;
}
else if(obedit) {
if ELEM7(obedit->type, OB_MESH, OB_FONT, OB_CURVE, OB_SURF, OB_MBALL, OB_LATTICE, OB_ARMATURE) {
return undo_editmode_valid(undoname);
}
}
else {
/* if below tests fail, global undo gets executed */
if(obact && obact->mode & OB_MODE_TEXTURE_PAINT) {
if( ED_undo_paint_valid(UNDO_PAINT_IMAGE, undoname) )
return 1;
}
else if(obact && obact->mode & OB_MODE_SCULPT) {
if( ED_undo_paint_valid(UNDO_PAINT_MESH, undoname) )
return 1;
}
else if(obact && obact->mode & OB_MODE_PARTICLE_EDIT) {
return PE_undo_valid(CTX_data_scene(C));
}
if(U.uiflag & USER_GLOBALUNDO) {
return BKE_undo_valid(undoname);
}
}
return 0;
}
static int ed_undo_exec(bContext *C, wmOperator *UNUSED(op))
{
/* "last operator" should disappear, later we can tie ths with undo stack nicer */
WM_operator_stack_clear(C);
return ed_undo_step(C, 1, NULL);
}
static int ed_undo_push_exec(bContext *C, wmOperator *op)
{
char str[MAXUNDONAME];
RNA_string_get(op->ptr, "message", str);
ED_undo_push(C, str);
return OPERATOR_FINISHED;
}
static int ed_redo_exec(bContext *C, wmOperator *UNUSED(op))
{
return ed_undo_step(C, -1, NULL);
}
#if 0 /* UNUSED */
void ED_undo_menu(bContext *C)
{
Object *obedit= CTX_data_edit_object(C);
Object *obact= CTX_data_active_object(C);
if(obedit) {
//if ELEM7(obedit->type, OB_MESH, OB_FONT, OB_CURVE, OB_SURF, OB_MBALL, OB_LATTICE, OB_ARMATURE)
// undo_editmode_menu();
}
else {
if(obact && obact->mode & OB_MODE_PARTICLE_EDIT)
PE_undo_menu(CTX_data_scene(C), CTX_data_active_object(C));
else if(U.uiflag & USER_GLOBALUNDO) {
char *menu= BKE_undo_menu_string();
if(menu) {
short event= 0; // XXX pupmenu_col(menu, 20);
MEM_freeN(menu);
if(event>0) {
BKE_undo_number(C, event);
}
}
}
}
}
#endif
/* ********************** */
void ED_OT_undo(wmOperatorType *ot)
{
/* identifiers */
ot->name= "Undo";
ot->description= "Undo previous action";
ot->idname= "ED_OT_undo";
/* api callbacks */
ot->exec= ed_undo_exec;
ot->poll= ED_operator_screenactive;
}
void ED_OT_undo_push(wmOperatorType *ot)
{
/* identifiers */
ot->name= "Undo Push";
ot->description= "Add an undo state (internal use only)";
ot->idname= "ED_OT_undo_push";
/* api callbacks */
ot->exec= ed_undo_push_exec;
RNA_def_string(ot->srna, "message", "Add an undo step *function may be moved*", MAXUNDONAME, "Undo Message", "");
}
void ED_OT_redo(wmOperatorType *ot)
{
/* identifiers */
ot->name= "Redo";
ot->description= "Redo previous action";
ot->idname= "ED_OT_redo";
/* api callbacks */
ot->exec= ed_redo_exec;
ot->poll= ED_operator_screenactive;
}
/* ui callbacks should call this rather then calling WM_operator_repeat() themselves */
int ED_undo_operator_repeat(bContext *C, struct wmOperator *op)
{
int ret= 0;
if(op) {
ARegion *ar= CTX_wm_region(C);
ARegion *ar1= BKE_area_find_region_type(CTX_wm_area(C), RGN_TYPE_WINDOW);
if(ar1)
CTX_wm_region_set(C, ar1);
if(WM_operator_repeat_check(C, op) && WM_operator_poll(C, op->type)) {
int retval;
if (G.f & G_DEBUG)
printf("redo_cb: operator redo %s\n", op->type->name);
ED_undo_pop_op(C, op);
retval= WM_operator_repeat(C, op);
if((retval & OPERATOR_FINISHED)==0) {
if (G.f & G_DEBUG)
printf("redo_cb: operator redo failed: %s, return %d\n", op->type->name, retval);
ED_undo_redo(C);
}
else {
ret= 1;
}
}
/* set region back */
CTX_wm_region_set(C, ar);
}
else {
if (G.f & G_DEBUG) {
printf("redo_cb: WM_operator_repeat_check returned false %s\n", op->type->name);
}
}
return ret;
}
void ED_undo_operator_repeat_cb(bContext *C, void *arg_op, void *UNUSED(arg_unused))
{
ED_undo_operator_repeat(C, (wmOperator *)arg_op);
}
void ED_undo_operator_repeat_cb_evt(bContext *C, void *arg_op, int UNUSED(arg_event))
{
ED_undo_operator_repeat(C, (wmOperator *)arg_op);
}
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