/*
 * Color.h -- Header for color routines.
 *
 * Authors		: Patrick Lecoanet.
 * Creation date	: Thu Dec 16 15:41:04 1999
 *
 * $Id$
 */

/*
 *  Copyright (c) 1993 - 1999 CENA, Patrick Lecoanet --
 *
 * This code is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this code; if not, write to the Free
 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */


#ifndef _Color_h
#define _Color_h


#include "Types.h"


typedef struct _ColorGradient *ZnColorGradient;

XColor *ZnGetColor(Tcl_Interp *interp, Tk_Window tkwin, Tk_Uid name);
XColor *ZnGetColorByValue(Tk_Window tkwin, XColor *color);
char *ZnNameOfColor(XColor *color);
void ZnFreeColor(XColor *color);

ZnColorGradient ZnGetColorGradient(Tcl_Interp *interp, Tk_Window tkwin,
				   Tk_Uid name);
ZnColorGradient ZnGetColorGradientByValue(ZnColorGradient gradient);
ZnColorGradient ZnGetReliefGradient(Tcl_Interp *interp, Tk_Window tkwin,
				    Tk_Uid name);
int ZnColorGradientSpan(ZnColorGradient);
XColor *ZnColorGradientColor(Tk_Window tkwin, ZnColorGradient gradient,
			     int color_index);
XColor *ZnColorGradientMidColor(Tk_Window tkwin, ZnColorGradient gradient);
char *ZnNameOfColorGradient(ZnColorGradient gradient);
void ZnFreeColorGradient(ZnColorGradient gradient);


#endif /* _Color_h */