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74 lines
2.0 KiB
VimL
74 lines
2.0 KiB
VimL
" =============================================================================
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" Filename: autoload/screensaver/pixel.vim
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" Author: itchyny
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" License: MIT License
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" Last Change: 2015/02/18 10:07:42.
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" =============================================================================
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let s:save_cpo = &cpo
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set cpo&vim
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" Load the pixel files on demand.
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" The pixel data are saved in files under pixel/.
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" For example, the character code of 'F' is 70 so the pixel data is pixel/70.
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" chr: character to get the pixel of
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" returns: pixel data in an array
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let s:pixel = { ' ': [ [2], [2], [2], [2], [2] ] }
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let s:dir = expand('<sfile>:p:h') . '/pixel/'
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function! screensaver#pixel#get(chr) abort
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if a:chr ==# ''
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return repeat([''], 5)
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endif
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if has_key(s:pixel, a:chr)
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return type(s:pixel[a:chr]) == type([]) ? s:pixel[a:chr] : s:pixel[' ']
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endif
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let path = s:dir . char2nr(a:chr)
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if filereadable(path)
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let px = readfile(path)
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let pixel = []
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for i in range(len(px))
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call add(pixel, [])
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let c = '.'
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let n = 0
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for j in range(len(px[i]))
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if px[i][j] ==# c
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let n += 1
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else
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call add(pixel[i], n)
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let c = px[i][j]
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let n = 1
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endif
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endfor
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call add(pixel[i], n)
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if c !=# '.'
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call add(pixel[i], 0)
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endif
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endfor
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else
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let pixel = [ [0], [0], [0], [0], [0] ]
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endif
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let s:pixel[a:chr] = pixel
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return get(s:pixel, a:chr, s:pixel[' '])
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endfunction
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function! screensaver#pixel#getstr(str, ...) abort
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let pixels = a:0 ? deepcopy(a:1) : [ [0], [0], [0], [0], [0] ]
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if a:str ==# ''
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return pixels
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endif
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for i in range(len(a:str))
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let newpixels = screensaver#pixel#get(a:str[i])
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for j in range(5)
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let pixels[j] = pixels[j][:-2] + [pixels[j][-1] + 2 + newpixels[j][0]] + newpixels[j][1:]
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endfor
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endfor
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let m = min(map(range(5), 'pixels[v:val][0]'))
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for j in range(5)
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let pixels[j][0] -= m
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endfor
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return pixels
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endfunction
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let &cpo = s:save_cpo
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unlet s:save_cpo
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