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/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
This file is part of Quake III Arena source code.
Quake III Arena source code 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.
Quake III Arena source code 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 Foobar; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
//
//
// QERadiant Multilevel Undo/Redo
//
//
//start operation
void Undo_Start(char *operation);
//end operation
void Undo_End(void);
//add brush to the undo
void Undo_AddBrush(brush_t *pBrush);
//add a list with brushes to the undo
void Undo_AddBrushList(brush_t *brushlist);
//end a brush after the operation is performed
void Undo_EndBrush(brush_t *pBrush);
//end a list with brushes after the operation is performed
void Undo_EndBrushList(brush_t *brushlist);
//add entity to undo
void Undo_AddEntity(entity_t *entity);
//end an entity after the operation is performed
void Undo_EndEntity(entity_t *entity);
//undo last operation
void Undo_Undo(void);
//redo last undone operation
void Undo_Redo(void);
//returns true if there is something to be undone available
int Undo_UndoAvailable(void);
//returns true if there is something to redo available
int Undo_RedoAvailable(void);
//clear the undo buffer
void Undo_Clear(void);
//set maximum undo size (default 64)
void Undo_SetMaxSize(int size);
//get maximum undo size
int Undo_GetMaxSize(void);
//set maximum undo memory in bytes (default 2 MB)
void Undo_SetMaxMemorySize(int size);
//get maximum undo memory in bytes
int Undo_GetMaxMemorySize(void);
//returns the amount of memory used by undo
int Undo_MemorySize(void);
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