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Brian Harris
2012-11-26 12:58:24 -06:00
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neo/framework/ConsoleHistory.h Normal file
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/*
===========================================================================
Doom 3 BFG Edition GPL Source Code
Copyright (C) 1993-2012 id Software LLC, a ZeniMax Media company.
This file is part of the Doom 3 BFG Edition GPL Source Code ("Doom 3 BFG Edition Source Code").
Doom 3 BFG Edition 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 3 of the License, or
(at your option) any later version.
Doom 3 BFG Edition 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 Doom 3 BFG Edition Source Code. If not, see <http://www.gnu.org/licenses/>.
In addition, the Doom 3 BFG Edition Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 BFG Edition Source Code. If not, please request a copy in writing from id Software at the address below.
If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
===========================================================================
*/
#ifndef __CONSOLEHISTORY_H__
#define __CONSOLEHISTORY_H__
/*
This should behave like the windows command prompt, with the addition
of a persistant history file.
Note that commands bound to keys do not go through the console history.
*/
class idConsoleHistory {
public:
idConsoleHistory() :
upPoint( 0 ),
downPoint( 0 ),
returnLine( 0 ),
numHistory( 0 )
{ ClearHistory(); }
void LoadHistoryFile();
// the line should not have a \n
// Empty lines are never added to the history.
// If the command is the same as the last returned history line, nothing is changed.
void AddToHistory( const char *line, bool writeHistoryFile = true );
// the string will not have a \n
// Returns an empty string if there is nothing to retrieve in that
// direction.
idStr RetrieveFromHistory( bool backward );
// console commands
void PrintHistory();
void ClearHistory();
private:
int upPoint; // command to be retrieved with next up-arrow
int downPoint; // command to be retrieved with next down-arrow
int returnLine; // last returned by RetrieveFromHistory()
int numHistory;
static const int COMMAND_HISTORY = 64;
idArray<idStr,COMMAND_HISTORY> historyLines;
compile_time_assert( CONST_ISPOWEROFTWO( COMMAND_HISTORY ) ); // we use the binary 'and' operator for wrapping
};
extern idConsoleHistory consoleHistory;
#endif // !__CONSOLEHISTORY_H__