1/* ----------------------------------------------------------------------- *
2 *
3 *   Copyright 2004-2008 H. Peter Anvin - All Rights Reserved
4 *
5 *   This program is free software; you can redistribute it and/or modify
6 *   it under the terms of the GNU General Public License as published by
7 *   the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
8 *   Boston MA 02110-1301, USA; either version 2 of the License, or
9 *   (at your option) any later version; incorporated herein by reference.
10 *
11 * ----------------------------------------------------------------------- */
12
13#include <stdlib.h>
14#include <string.h>
15#include <stdio.h>
16#include <colortbl.h>
17#include "menu.h"
18
19/*
20 * The color/attribute indexes (\1#X, \2#XX, \3#XXX) are as follows
21 *
22 * 00 - screen		Rest of the screen
23 * 01 - border		Border area
24 * 02 - title		Title bar
25 * 03 - unsel		Unselected menu item
26 * 04 - hotkey		Unselected hotkey
27 * 05 - sel		Selection bar
28 * 06 - hotsel		Selected hotkey
29 * 07 - scrollbar	Scroll bar
30 * 08 - tabmsg		Press [Tab] message
31 * 09 - cmdmark		Command line marker
32 * 10 - cmdline		Command line
33 * 11 - pwdborder	Password box border
34 * 12 - pwdheader	Password box header
35 * 13 - pwdentry	Password box contents
36 * 14 - timeout_msg	Timeout message
37 * 15 - timeout		Timeout counter
38 * 16 - help		Current entry help text
39 * 17 - disabled        Disabled menu item
40 */
41
42static const struct color_table default_colors[] = {
43    {"screen", "37;40", 0x80ffffff, 0x00000000, SHADOW_NORMAL},
44    {"border", "30;44", 0x40000000, 0x00000000, SHADOW_NORMAL},
45    {"title", "1;36;44", 0xc00090f0, 0x00000000, SHADOW_NORMAL},
46    {"unsel", "37;44", 0x90ffffff, 0x00000000, SHADOW_NORMAL},
47    {"hotkey", "1;37;44", 0xffffffff, 0x00000000, SHADOW_NORMAL},
48    {"sel", "7;37;40", 0xe0000000, 0x20ff8000, SHADOW_ALL},
49    {"hotsel", "1;7;37;40", 0xe0400000, 0x20ff8000, SHADOW_ALL},
50    {"scrollbar", "30;44", 0x40000000, 0x00000000, SHADOW_NORMAL},
51    {"tabmsg", "31;40", 0x90ffff00, 0x00000000, SHADOW_NORMAL},
52    {"cmdmark", "1;36;40", 0xc000ffff, 0x00000000, SHADOW_NORMAL},
53    {"cmdline", "37;40", 0xc0ffffff, 0x00000000, SHADOW_NORMAL},
54    {"pwdborder", "30;47", 0x80ffffff, 0x20ffffff, SHADOW_NORMAL},
55    {"pwdheader", "31;47", 0x80ff8080, 0x20ffffff, SHADOW_NORMAL},
56    {"pwdentry", "30;47", 0x80ffffff, 0x20ffffff, SHADOW_NORMAL},
57    {"timeout_msg", "37;40", 0x80ffffff, 0x00000000, SHADOW_NORMAL},
58    {"timeout", "1;37;40", 0xc0ffffff, 0x00000000, SHADOW_NORMAL},
59    {"help", "37;40", 0xc0ffffff, 0x00000000, SHADOW_NORMAL},
60    {"disabled", "1;30;44", 0x60cccccc, 0x00000000, SHADOW_NORMAL},
61};
62
63#define NCOLORS (sizeof default_colors/sizeof default_colors[0])
64const int message_base_color = NCOLORS;
65const int menu_color_table_size = NCOLORS + 256;
66
67/* Algorithmically generate the msgXX colors */
68void set_msg_colors_global(struct color_table *tbl,
69			   unsigned int fg, unsigned int bg,
70			   enum color_table_shadow shadow)
71{
72    struct color_table *cp = tbl + message_base_color;
73    unsigned int i;
74    unsigned int fga, bga;
75    unsigned int fgh, bgh;
76    unsigned int fg_idx, bg_idx;
77    unsigned int fg_rgb, bg_rgb;
78
79    static const unsigned int pc2rgb[8] =
80	{ 0x000000, 0x0000ff, 0x00ff00, 0x00ffff, 0xff0000, 0xff00ff, 0xffff00,
81	0xffffff
82    };
83
84    /* Converting PC RGBI to sensible RGBA values is an "interesting"
85       proposition.  This algorithm may need plenty of tweaking. */
86
87    fga = fg & 0xff000000;
88    fgh = ((fg >> 1) & 0xff000000) | 0x80000000;
89
90    bga = bg & 0xff000000;
91    bgh = ((bg >> 1) & 0xff000000) | 0x80000000;
92
93    for (i = 0; i < 256; i++) {
94	fg_idx = i & 15;
95	bg_idx = i >> 4;
96
97	fg_rgb = pc2rgb[fg_idx & 7] & fg;
98	bg_rgb = pc2rgb[bg_idx & 7] & bg;
99
100	if (fg_idx & 8) {
101	    /* High intensity foreground */
102	    fg_rgb |= fgh;
103	} else {
104	    fg_rgb |= fga;
105	}
106
107	if (bg_idx == 0) {
108	    /* Default black background, assume transparent */
109	    bg_rgb = 0;
110	} else if (bg_idx & 8) {
111	    bg_rgb |= bgh;
112	} else {
113	    bg_rgb |= bga;
114	}
115
116	cp->argb_fg = fg_rgb;
117	cp->argb_bg = bg_rgb;
118	cp->shadow = shadow;
119	cp++;
120    }
121}
122
123struct color_table *default_color_table(void)
124{
125    unsigned int i;
126    const struct color_table *dp;
127    struct color_table *cp;
128    struct color_table *color_table;
129    static const int pc2ansi[8] = { 0, 4, 2, 6, 1, 5, 3, 7 };
130    static char msg_names[6 * 256];
131    char *mp;
132
133    color_table = calloc(NCOLORS + 256, sizeof(struct color_table));
134
135    dp = default_colors;
136    cp = color_table;
137
138    for (i = 0; i < NCOLORS; i++) {
139	*cp = *dp;
140	cp->ansi = refstrdup(dp->ansi);
141	cp++;
142	dp++;
143    }
144
145    mp = msg_names;
146    for (i = 0; i < 256; i++) {
147	cp->name = mp;
148	mp += sprintf(mp, "msg%02x", i) + 1;
149
150	rsprintf(&cp->ansi, "%s3%d;4%d", (i & 8) ? "1;" : "",
151		 pc2ansi[i & 7], pc2ansi[(i >> 4) & 7]);
152	cp++;
153    }
154
155  /*** XXX: This needs to move to run_menu() ***/
156    console_color_table = color_table;
157    console_color_table_size = NCOLORS + 256;
158
159    set_msg_colors_global(color_table, MSG_COLORS_DEF_FG,
160			  MSG_COLORS_DEF_BG, MSG_COLORS_DEF_SHADOW);
161
162    return color_table;
163}
164
165struct color_table *copy_color_table(const struct color_table *master)
166{
167    const struct color_table *dp;
168    struct color_table *color_table, *cp;
169    unsigned int i;
170
171    color_table = calloc(NCOLORS + 256, sizeof(struct color_table));
172
173    dp = master;
174    cp = color_table;
175
176    for (i = 0; i < NCOLORS + 256; i++) {
177	*cp = *dp;
178	cp->ansi = refstr_get(dp->ansi);
179	cp++;
180	dp++;
181    }
182
183    return color_table;
184}
185