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//
// "$Id: Color.h 5918 2007-06-26 18:49:21Z spitzak $"
//
// Color value. These are 32-bit unsigned numbers with RGB as the
// upper 3 bytes. The lowest-order byte is treated as an "index"
// for back compatabilty, or as an "alpha", depending on context.
//
// Copyright 1998-2006 by Bill Spitzak and others.
//
// This library 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 library 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 library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA.
//
// Please report all bugs and problems to:
//
// http://www.fltk.org/str.php
//
/*! \file */
#ifndef fltk_Color_h
#define fltk_Color_h
#include "FL_API.h"
#include "Flags.h"
namespace fltk {
typedef unsigned Color;
/*! Symbolic names for some of the indexed colors.
The 24-entry "gray ramp" is modified by fltk::set_background() so
that the color fltk::GRAY75 is the background color, and the others
are a nice range from black to a lighter version of the gray. These
are used to draw box edges. The gray levels are chosen to be evenly
spaced, listed here is the actual 8-bit and decimal gray level
assigned by default. Also listed here is the letter used for
fltk::FrameBox and the old fltk1.1 names used for these levels.
The remiander of the colormap is a 5x8x5 color cube. This cube is
used to dither images on 8-bit screens X colormaps to reduce the
number of colors used.
*/
enum {
NO_COLOR = 0, //!< Black, empty place holder in Style
FREE_COLOR = 16, //!< Starting from index 16 is the FREE_COLOR area
NUM_FREE_COLOR= 16, //!< Number of free color slots starting from index FREE_COLOR
GRAY00 = 32, //!< hex=00, dec=.00, framebox=A, fltk1 = GRAY0, GRAY_RAMP
GRAY05 = 33, //!< hex=0d, dec=.05, framebox=B
GRAY10 = 34, //!< hex=1a, dec=.10, framebox=C
GRAY15 = 35, //!< hex=27, dec=.15, framebox=D
GRAY20 = 36, //!< hex=34, dec=.20, framebox=E
GRAY25 = 37, //!< hex=41, dec=.25, framebox=F
GRAY30 = 38, //!< hex=4f, dec=.31, framebox=G
GRAY33 = 39, //!< hex=5c, dec=.36, framebox=H, fltk1 = DARK3
GRAY35 = 40, //!< hex=69, dec=.41, framebox=I
GRAY40 = 41, //!< hex=76, dec=.46, framebox=J (18% gray card)
GRAY45 = 42, //!< hex=83, dec=.51, framebox=K
GRAY50 = 43, //!< hex=90, dec=.56, framebox=L
GRAY55 = 44, //!< hex=9e, dec=.62, framebox=M
GRAY60 = 45, //!< hex=ab, dec=.67, framebox=N, fltk1 = DARK2
GRAY65 = 46, //!< hex=b8, dec=.72, framebox=O
GRAY66 = 47, //!< hex=c5, dec=.77, framebox=P, fltk1 = DARK1, INACTIVE_COLOR
GRAY70 = 48, //!< hex=d2, dec=.82, framebox=Q
GRAY75 = 49, //!< hex=e0, dec=.88, framebox=R, fltk1 = GRAY, SELECTION_COLOR
GRAY80 = 50, //!< hex=e5, dec=.90, framebox=S
GRAY85 = 51, //!< hex=ea, dec=.92, framebox=T, fltk1 = LIGHT1
//unnamed entry hex=ef, dec=.94, framebox=U
GRAY90 = 53, //!< hex=f4, dec=.96, framebox=V, fltk1 = LIGHT2
GRAY95 = 54, //!< hex=f9, dec=.98, framebox=W
GRAY99 = 55, //!< hex=ff, dec=1.0, framebox=X, fltk1 = LIGHT3
BLACK = 0x38, //!< Corner of color cube
RED = 0x58, //!< Corner of color cube
GREEN = 0x3f, //!< Corner of color cube
YELLOW = 0x5f, //!< Corner of color cube
BLUE = 0xd8, //!< Corner of color cube
MAGENTA = 0xf8, //!< Corner of color cube
CYAN = 0xdf, //!< Corner of color cube
WHITE = 0xff, //!< Corner of color cube
DARK_RED = 72,
DARK_GREEN = 60,
DARK_YELLOW = 76,
DARK_BLUE = 136,
DARK_MAGENTA = 152,
DARK_CYAN = 140,
WINDOWS_BLUE = 0x88 //!< default selection_color
};
inline Color color(unsigned char r, unsigned char g, unsigned char b) {
return Color((r<<24)+(g<<16)+(b<<8)); }
inline Color color(unsigned char g) {
return Color(g*0x1010100u); }
FL_API Color color(const char*);
FL_API Color parsecolor(const char*, unsigned length);
FL_API Color lerp(Color c0, Color c1, float f);
FL_API Color inactive(Color fg);
FL_API Color inactive(Color fg, Color bg);
FL_API Color contrast(Color fg, Color bg);
FL_API void split_color(Color c, unsigned char& r, unsigned char& g, unsigned char& b);
FL_API void set_color_index(Color index, Color);
FL_API Color get_color_index(Color index);
FL_API void set_background(Color);
FL_API Color nearest_index(Color);
}
#endif
//
// End of "$Id: Color.h 5918 2007-06-26 18:49:21Z spitzak $".
//
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