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[rbdr/dotfiles] / vim / colors / desert256.vim
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1" Vim color file
2" Maintainer: Henry So, Jr. <henryso@panix.com>
3
4" These are the colors of the "desert" theme by Hans Fugal with a few small
5" modifications (namely that I lowered the intensity of the normal white and
6" made the normal and nontext backgrounds black), modified to work with 88-
7" and 256-color xterms.
8"
9" The original "desert" theme is available as part of the vim distribution or
10" at http://hans.fugal.net/vim/colors/.
11"
12" The real feature of this color scheme, with a wink to the "inkpot" theme, is
13" the programmatic approximation of the gui colors to the palettes of 88- and
14" 256- color xterms. The functions that do this (folded away, for
15" readability) are calibrated to the colors used for Thomas E. Dickey's xterm
16" (version 200), which is available at http://dickey.his.com/xterm/xterm.html.
17"
18" I struggled with trying to parse the rgb.txt file to avoid the necessity of
19" converting color names to #rrggbb form, but decided it was just not worth
20" the effort. Maybe someone seeing this may decide otherwise...
21
22set background=dark
23if version > 580
24 " no guarantees for version 5.8 and below, but this makes it stop
25 " complaining
26 hi clear
27 if exists("syntax_on")
28 syntax reset
29 endif
30endif
31let g:colors_name="desert256"
32
33if has("gui_running") || &t_Co == 88 || &t_Co == 256
34 " functions {{{
35 " returns an approximate grey index for the given grey level
36 fun <SID>grey_number(x)
37 if &t_Co == 88
38 if a:x < 23
39 return 0
40 elseif a:x < 69
41 return 1
42 elseif a:x < 103
43 return 2
44 elseif a:x < 127
45 return 3
46 elseif a:x < 150
47 return 4
48 elseif a:x < 173
49 return 5
50 elseif a:x < 196
51 return 6
52 elseif a:x < 219
53 return 7
54 elseif a:x < 243
55 return 8
56 else
57 return 9
58 endif
59 else
60 if a:x < 14
61 return 0
62 else
63 let l:n = (a:x - 8) / 10
64 let l:m = (a:x - 8) % 10
65 if l:m < 5
66 return l:n
67 else
68 return l:n + 1
69 endif
70 endif
71 endif
72 endfun
73
74 " returns the actual grey level represented by the grey index
75 fun <SID>grey_level(n)
76 if &t_Co == 88
77 if a:n == 0
78 return 0
79 elseif a:n == 1
80 return 46
81 elseif a:n == 2
82 return 92
83 elseif a:n == 3
84 return 115
85 elseif a:n == 4
86 return 139
87 elseif a:n == 5
88 return 162
89 elseif a:n == 6
90 return 185
91 elseif a:n == 7
92 return 208
93 elseif a:n == 8
94 return 231
95 else
96 return 255
97 endif
98 else
99 if a:n == 0
100 return 0
101 else
102 return 8 + (a:n * 10)
103 endif
104 endif
105 endfun
106
107 " returns the palette index for the given grey index
108 fun <SID>grey_color(n)
109 if &t_Co == 88
110 if a:n == 0
111 return 16
112 elseif a:n == 9
113 return 79
114 else
115 return 79 + a:n
116 endif
117 else
118 if a:n == 0
119 return 16
120 elseif a:n == 25
121 return 231
122 else
123 return 231 + a:n
124 endif
125 endif
126 endfun
127
128 " returns an approximate color index for the given color level
129 fun <SID>rgb_number(x)
130 if &t_Co == 88
131 if a:x < 69
132 return 0
133 elseif a:x < 172
134 return 1
135 elseif a:x < 230
136 return 2
137 else
138 return 3
139 endif
140 else
141 if a:x < 75
142 return 0
143 else
144 let l:n = (a:x - 55) / 40
145 let l:m = (a:x - 55) % 40
146 if l:m < 20
147 return l:n
148 else
149 return l:n + 1
150 endif
151 endif
152 endif
153 endfun
154
155 " returns the actual color level for the given color index
156 fun <SID>rgb_level(n)
157 if &t_Co == 88
158 if a:n == 0
159 return 0
160 elseif a:n == 1
161 return 139
162 elseif a:n == 2
163 return 205
164 else
165 return 255
166 endif
167 else
168 if a:n == 0
169 return 0
170 else
171 return 55 + (a:n * 40)
172 endif
173 endif
174 endfun
175
176 " returns the palette index for the given R/G/B color indices
177 fun <SID>rgb_color(x, y, z)
178 if &t_Co == 88
179 return 16 + (a:x * 16) + (a:y * 4) + a:z
180 else
181 return 16 + (a:x * 36) + (a:y * 6) + a:z
182 endif
183 endfun
184
185 " returns the palette index to approximate the given R/G/B color levels
186 fun <SID>color(r, g, b)
187 " get the closest grey
188 let l:gx = <SID>grey_number(a:r)
189 let l:gy = <SID>grey_number(a:g)
190 let l:gz = <SID>grey_number(a:b)
191
192 " get the closest color
193 let l:x = <SID>rgb_number(a:r)
194 let l:y = <SID>rgb_number(a:g)
195 let l:z = <SID>rgb_number(a:b)
196
197 if l:gx == l:gy && l:gy == l:gz
198 " there are two possibilities
199 let l:dgr = <SID>grey_level(l:gx) - a:r
200 let l:dgg = <SID>grey_level(l:gy) - a:g
201 let l:dgb = <SID>grey_level(l:gz) - a:b
202 let l:dgrey = (l:dgr * l:dgr) + (l:dgg * l:dgg) + (l:dgb * l:dgb)
203 let l:dr = <SID>rgb_level(l:gx) - a:r
204 let l:dg = <SID>rgb_level(l:gy) - a:g
205 let l:db = <SID>rgb_level(l:gz) - a:b
206 let l:drgb = (l:dr * l:dr) + (l:dg * l:dg) + (l:db * l:db)
207 if l:dgrey < l:drgb
208 " use the grey
209 return <SID>grey_color(l:gx)
210 else
211 " use the color
212 return <SID>rgb_color(l:x, l:y, l:z)
213 endif
214 else
215 " only one possibility
216 return <SID>rgb_color(l:x, l:y, l:z)
217 endif
218 endfun
219
220 " returns the palette index to approximate the 'rrggbb' hex string
221 fun <SID>rgb(rgb)
222 let l:r = ("0x" . strpart(a:rgb, 0, 2)) + 0
223 let l:g = ("0x" . strpart(a:rgb, 2, 2)) + 0
224 let l:b = ("0x" . strpart(a:rgb, 4, 2)) + 0
225
226 return <SID>color(l:r, l:g, l:b)
227 endfun
228
229 " sets the highlighting for the given group
230 fun <SID>X(group, fg, bg, attr)
231 if a:fg != ""
232 exec "hi " . a:group . " guifg=#" . a:fg . " ctermfg=" . <SID>rgb(a:fg)
233 endif
234 if a:bg != ""
235 exec "hi " . a:group . " guibg=#" . a:bg . " ctermbg=" . <SID>rgb(a:bg)
236 endif
237 if a:attr != ""
238 exec "hi " . a:group . " gui=" . a:attr . " cterm=" . a:attr
239 endif
240 endfun
241 " }}}
242
243 call <SID>X("Normal", "cccccc", "000000", "")
244
245 " highlight groups
246 call <SID>X("Cursor", "708090", "f0e68c", "")
247 "CursorIM
248 "Directory
249 "DiffAdd
250 "DiffChange
251 "DiffDelete
252 "DiffText
253 "ErrorMsg
254 call <SID>X("VertSplit", "c2bfa5", "7f7f7f", "reverse")
255 call <SID>X("Folded", "ffd700", "4d4d4d", "")
256 call <SID>X("FoldColumn", "d2b48c", "4d4d4d", "")
257 call <SID>X("IncSearch", "708090", "f0e68c", "")
258 "LineNr
259 call <SID>X("ModeMsg", "daa520", "", "")
260 call <SID>X("MoreMsg", "2e8b57", "", "")
261 call <SID>X("NonText", "addbe7", "000000", "bold")
262 call <SID>X("Question", "00ff7f", "", "")
263 call <SID>X("Search", "f5deb3", "cd853f", "")
264 call <SID>X("SpecialKey", "9acd32", "", "")
265 call <SID>X("StatusLine", "c2bfa5", "000000", "reverse")
266 call <SID>X("StatusLineNC", "c2bfa5", "7f7f7f", "reverse")
267 call <SID>X("Title", "cd5c5c", "", "")
268 call <SID>X("Visual", "6b8e23", "f0e68c", "reverse")
269 "VisualNOS
270 call <SID>X("WarningMsg", "fa8072", "", "")
271 "WildMenu
272 "Menu
273 "Scrollbar
274 "Tooltip
275
276 " syntax highlighting groups
277 call <SID>X("Comment", "87ceeb", "", "")
278 call <SID>X("Constant", "ffa0a0", "", "")
279 call <SID>X("Identifier", "98fb98", "", "none")
280 call <SID>X("Statement", "f0e68c", "", "bold")
281 call <SID>X("PreProc", "cd5c5c", "", "")
282 call <SID>X("Type", "bdb76b", "", "bold")
283 call <SID>X("Special", "ffdead", "", "")
284 "Underlined
285 call <SID>X("Ignore", "666666", "", "")
286 "Error
287 call <SID>X("Todo", "ff4500", "eeee00", "")
288
289 " delete functions {{{
290 delf <SID>X
291 delf <SID>rgb
292 delf <SID>color
293 delf <SID>rgb_color
294 delf <SID>rgb_level
295 delf <SID>rgb_number
296 delf <SID>grey_color
297 delf <SID>grey_level
298 delf <SID>grey_number
299 " }}}
300else
301 " color terminal definitions
302 hi SpecialKey ctermfg=darkgreen
303 hi NonText cterm=bold ctermfg=darkblue
304 hi Directory ctermfg=darkcyan
305 hi ErrorMsg cterm=bold ctermfg=7 ctermbg=1
306 hi IncSearch cterm=NONE ctermfg=yellow ctermbg=green
307 hi Search cterm=NONE ctermfg=grey ctermbg=blue
308 hi MoreMsg ctermfg=darkgreen
309 hi ModeMsg cterm=NONE ctermfg=brown
310 hi LineNr ctermfg=3
311 hi Question ctermfg=green
312 hi StatusLine cterm=bold,reverse
313 hi StatusLineNC cterm=reverse
314 hi VertSplit cterm=reverse
315 hi Title ctermfg=5
316 hi Visual cterm=reverse
317 hi VisualNOS cterm=bold,underline
318 hi WarningMsg ctermfg=1
319 hi WildMenu ctermfg=0 ctermbg=3
320 hi Folded ctermfg=darkgrey ctermbg=NONE
321 hi FoldColumn ctermfg=darkgrey ctermbg=NONE
322 hi DiffAdd ctermbg=4
323 hi DiffChange ctermbg=5
324 hi DiffDelete cterm=bold ctermfg=4 ctermbg=6
325 hi DiffText cterm=bold ctermbg=1
326 hi Comment ctermfg=darkcyan
327 hi Constant ctermfg=brown
328 hi Special ctermfg=5
329 hi Identifier ctermfg=6
330 hi Statement ctermfg=3
331 hi PreProc ctermfg=5
332 hi Type ctermfg=2
333 hi Underlined cterm=underline ctermfg=5
334 hi Ignore ctermfg=darkgrey
335 hi Error cterm=bold ctermfg=7 ctermbg=1
336endif
337
338" vim: set fdl=0 fdm=marker:
My dotfiles #config