/*
 * evalgraph.h -- Evaluation Graph window
 *
 * Copyright 2000, 2009, 2010 Free Software Foundation, Inc.
 *
 * Enhancements Copyright 2005 Alessandro Scotti
 *
 * ------------------------------------------------------------------------
 *
 * GNU XBoard 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.
 *
 * GNU XBoard 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, see http://www.gnu.org/licenses/.  *
 *
 *------------------------------------------------------------------------
 ** See the file ChangeLog for a revision history.  
 */

#define MIN_HIST_WIDTH  4
#define MAX_HIST_WIDTH  10

#define PEN_NONE	0
#define PEN_BLACK	1
#define PEN_DOTTED	2
#define PEN_BLUEDOTTED	3
#define PEN_BOLD	4 /* or 5 for black */

#define FILLED 1
#define OPEN   0

/* Module globals */
ChessProgramStats_Move * currPvInfo;
extern int currFirst;
extern int currLast;
extern int currCurrent;

extern int nWidthPB;
extern int nHeightPB;

extern int MarginX;
extern int MarginW;
extern int MarginH;

// calls from back-end part into front-end part
void DrawSegment( int x, int y, int *lastX, int *lastY, int penType );
void DrawRectangle( int left, int top, int right, int bottom, int side, int style );
void DrawEvalText(char *buf, int cbBuf, int y);

// calls of front-end part into back-end part
extern int GetMoveIndexFromPoint( int x, int y );
extern void PaintEvalGraph( void );