pith/color.h

   1 /*
   2  * $Id: color.h 768 2007-10-24 00:10:03Z hubert@u.washington.edu $
   3  *
   4  * ========================================================================
   5  * Copyright 2013-2022 Eduardo Chappa
   6  * Copyright 2006 University of Washington
   7  *
   8  * Licensed under the Apache License, Version 2.0 (the "License");
   9  * you may not use this file except in compliance with the License.
  10  * You may obtain a copy of the License at
  11  *
  12  *     http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * ========================================================================
  15  */
  16
  17 #ifndef PITH_COLOR_INCLUDED
  18 #define PITH_COLOR_INCLUDED
  19
  20
  21 #include "../pith/filttype.h"
  22 #include "../pith/pattern.h"
  23 #include "../pith/osdep/color.h"
  24
  25
  26 typedef struct spec_color_s {
  27     int   inherit;      /* this isn't a color, it is INHERIT */
  28     char *spec;
  29     char *fg;
  30     char *bg;
  31     PATTERN_S *val;
  32     struct spec_color_s *next;
  33 } SPEC_COLOR_S;
  34
  35
  36 /*
  37  * These are default colors that you'll get when you turn
  38  * color on. The way color works is that the closest possible
  39  * RGB value is chosen so these colors will produce different
  40  * results in the different color models (the 8-color, 16-color,
  41  * xterm 256-color, and PC-Alpine color).
  42  * See init_color_table() for the RGB values we use.
  43  * The 8-color model uses the 8 0 or 255 possibilities. So,
  44  * for example, if the default color is "000,217,217" the
  45  * closes 8-color version of that is going to be "000,255,255".
  46  * In the 16-color terminal we use 000, 174, and 255 as the
  47  * possible values. That means that a default value
  48  * of "000,214,000" maps to "000,174,000" (a dull green)
  49  * but "000,215,000" maps to "000,255,000" (a bright green).
  50  *
  51  * The colors which don't have defaults map to either the current
  52  * setting of the Normal color or the current setting of the
  53  * Reverse color, depending on what we thought was right long ago.
  54  */
  55 #define DEFAULT_TITLE_FORE_RGB          "000,000,000"
  56 #define DEFAULT_TITLE_BACK_RGB          "255,255,000"
  57 #define DEFAULT_TITLECLOSED_FORE_RGB    "255,255,255"
  58 #define DEFAULT_TITLECLOSED_BACK_RGB    "255,000,000"
  59 #define DEFAULT_METAMSG_FORE_RGB        "000,000,000"
  60 #define DEFAULT_METAMSG_BACK_RGB        "255,255,000"
  61 #define DEFAULT_QUOTE1_FORE_RGB         "000,000,000"
  62 #define DEFAULT_QUOTE1_BACK_RGB         "000,217,217"
  63 #define DEFAULT_QUOTE2_FORE_RGB         "000,000,000"
  64 #define DEFAULT_QUOTE2_BACK_RGB         "204,214,000"
  65 #define DEFAULT_QUOTE3_FORE_RGB         "000,000,000"
  66 #define DEFAULT_QUOTE3_BACK_RGB         "000,214,000"
  67 #define DEFAULT_SIGNATURE_FORE_RGB      "000,000,255"
  68 #define DEFAULT_SIGNATURE_BACK_RGB      "255,255,255"
  69 #define DEFAULT_IND_PLUS_FORE_RGB       "000,000,000"
  70 #define DEFAULT_IND_PLUS_BACK_RGB       "000,174,174"
  71 #define DEFAULT_IND_IMP_FORE_RGB        "240,240,240"
  72 #define DEFAULT_IND_IMP_BACK_RGB        "174,000,000"
  73 #define DEFAULT_IND_ANS_FORE_RGB        "255,000,000"
  74 #define DEFAULT_IND_ANS_BACK_RGB        "174,174,000"
  75 #define DEFAULT_IND_NEW_FORE_RGB        "240,240,240"
  76 #define DEFAULT_IND_NEW_BACK_RGB        "174,000,174"
  77 #define DEFAULT_IND_OP_FORE_RGB         "192,192,192"
  78 #define DEFAULT_IND_OP_BACK_RGB         "255,255,255"
  79
  80
  81 /* exported prototypes */
  82 char    *color_embed(char *, char *);
  83 int      colorcmp(char *, char *);
  84 int      color_a_quote(long, char *, LT_INS_S **, void *);
  85 void     free_spec_colors(SPEC_COLOR_S **);
  86
  87
  88 #endif /* PITH_COLOR_INCLUDED */