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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.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/editors/curve/editfont_undo.c
* \ingroup edcurve
*/
#include <stdlib.h>
#include <string.h>
#include <wchar.h>
#include "MEM_guardedalloc.h"
#include "BLI_utildefines.h"
#include "DNA_curve_types.h"
#include "DNA_object_types.h"
#include "DNA_scene_types.h"
#include "BKE_context.h"
#include "BKE_font.h"
#include "ED_curve.h"
#include "ED_util.h"
/* TODO, remove */
#define MAXTEXT 32766
static void undoFont_to_editFont(void *strv, void *ecu, void *UNUSED(obdata))
{
Curve *cu = (Curve *)ecu;
EditFont *ef = cu->editfont;
const char *str = strv;
ef->pos = *((const short *)str);
ef->len = *((const short *)(str + 2));
memcpy(ef->textbuf, str + 4, (ef->len + 1) * sizeof(wchar_t));
memcpy(ef->textbufinfo, str + 4 + (ef->len + 1) * sizeof(wchar_t), ef->len * sizeof(CharInfo));
ef->selstart = ef->selend = 0;
}
static void *editFont_to_undoFont(void *ecu, void *UNUSED(obdata))
{
Curve *cu = (Curve *)ecu;
EditFont *ef = cu->editfont;
char *str;
/* The undo buffer includes [MAXTEXT+6]=actual string and [MAXTEXT+4]*sizeof(CharInfo)=charinfo */
str = MEM_callocN((MAXTEXT + 6) * sizeof(wchar_t) + (MAXTEXT + 4) * sizeof(CharInfo), "string undo");
/* Copy the string and string information */
memcpy(str + 4, ef->textbuf, (ef->len + 1) * sizeof(wchar_t));
memcpy(str + 4 + (ef->len + 1) * sizeof(wchar_t), ef->textbufinfo, ef->len * sizeof(CharInfo));
*((short *)(str + 0)) = ef->pos;
*((short *)(str + 2)) = ef->len;
return str;
}
static void free_undoFont(void *strv)
{
MEM_freeN(strv);
}
static void *get_undoFont(bContext *C)
{
Object *obedit = CTX_data_edit_object(C);
if (obedit && obedit->type == OB_FONT) {
return obedit->data;
}
return NULL;
}
/* and this is all the undo system needs to know */
void undo_push_font(bContext *C, const char *name)
{
undo_editmode_push(C, name, get_undoFont, free_undoFont, undoFont_to_editFont, editFont_to_undoFont, NULL);
}
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