355 lines
13 KiB
VimL
355 lines
13 KiB
VimL
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" Very minital statusline for vim
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" Supports vim 8.0 and up and neovim 0.4 and likely earlier versions
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" Always show
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set laststatus=2
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" ========================================================
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" # Statusline highlights
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" ====================================================={{{
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augroup statusbars_colorscheme_matching
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au!
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autocmd ColorScheme * call ReloadStatlnColors()
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augroup END
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" Function taken from vim airline
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" https://github.com/vim-airline/vim-airline/blob/master/autoload/airline/highlighter.vim#L17
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function! GuiColors(rgb, fallback)
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if a:rgb[0] !~ '#'
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return a:fallback
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endif
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return a:rgb
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endfunction
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" Also set as active tabline hue
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let g:StatlnPrimaryColor = '#000000'
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" \ GuiColors(synIDattr(synIDtrans(hlID('String')), 'fg', 'gui'), '#000000')
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" Updates statusline colors
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function! ReloadStatlnColors()
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call SetGlobalPrimaryColor()
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let g:StatlnPrimaryFG = GuiColors(synIDattr(synIDtrans(hlID('Normal')), 'bg', 'gui'), '#222222')
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\ | let g:StatlnSubtle = GuiColors(synIDattr(synIDtrans(hlID('Normal')), 'fg', 'gui'), '#DAB997')
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\ | let g:StatlnSubtleBG = GuiColors(synIDattr(synIDtrans(hlID('Visual')), 'bg', 'gui'), '#4E4E4E')
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\ | let g:StatlnIdle = GuiColors(synIDattr(synIDtrans(hlID('Search')), 'bg', 'gui'), '#FFAF00')
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\ | let g:StatlnIdleBG = GuiColors(synIDattr(synIDtrans(hlID('Normal')), 'bg', 'gui'), '#222222')
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" Colored accent highlight changing based on the mode
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" Statusline: Left and right corners
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" TabLine: Active tab
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execute 'highlight StatlnPrimaryHL'
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\ . ' guifg=' . g:StatlnPrimaryFG
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\ . ' guibg=' . g:StatlnPrimaryColor
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\ . ' term=bold cterm=bold gui=bold'
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highlight! link TabLineActiveHL StatlnPrimaryHL
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" Primary highlight transitions for powerline seperators
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" Statusline: Left/right corners to adjacent
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" Tabline: Active <-> Idle tabs
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execute 'highlight StatlnPrimaryToSubtleHL guifg=' . g:StatlnSubtleBG . ' guibg=' . g:StatlnPrimaryColor
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highlight! link TabLineIdleToActiveHL StatlnPrimaryToSubtleHL
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execute 'highlight StatlnSubtleToPrimaryHL guifg=' . g:StatlnPrimaryColor . ' guibg=' . g:StatlnSubtleBG
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highlight! link TabLineActiveToIdleHL StatlnSubtleToPrimaryHL
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" Small Statusline: Center -> blank right side
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" TabLine: Active tab -> blank right side
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execute 'highlight TabLineActiveToBGHL guifg=' . g:StatlnPrimaryColor . ' guibg=' . g:StatlnIdleBG
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execute 'highlight StatlnPrimaryToIdleHL guifg=' . g:StatlnIdleBG . ' guibg=' . g:StatlnPrimaryColor
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" Secondary highlight
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" Statusline: Adjacent to corners
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" Tabline: Inactive (idle) tabs
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execute 'highlight StatlnSubtleHL guifg=' . g:StatlnSubtle . ' guibg=' . g:StatlnSubtleBG
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highlight! link TabLineIdleHL StatlnSubtleHL
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" Secondary highlight transitions for powerline seperators
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" StatusLine: Into/from the middle gap
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" Small StatusLine: Blank left side -> center
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" Tabline: Inactive tab -> blank right side
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execute 'highlight StatlnSubtleToIdleHL guifg=' . g:StatlnIdleBG . ' guibg=' . g:StatlnSubtleBG
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execute 'highlight StatlnIdleToPrimaryHL guifg=' . g:StatlnPrimaryColor . ' guibg=' . g:StatlnIdleBG
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execute 'highlight StatlnIdleToSubtleHL guifg=' . g:StatlnSubtleBG . ' guibg=' . g:StatlnIdleBG
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highlight! link TabLineIdleToBGHL StatlnIdleToSubtleHL
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" Tertiary highlight
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" StatusLine: Background of statusline and inactive buffers
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execute 'highlight StatlnIdleHL guifg=' . g:StatlnIdle ' guibg=' . g:StatlnIdleBG
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execute 'highlight StatlnIdleInverseHL guifg=' . g:StatlnIdleBG ' guibg=' . g:StatlnIdle
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endfunction
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" Sets primary color highlight for statusline and tabline, based on the mode
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" Updates the name of the mode in the statusline
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function! SetGlobalPrimaryColor()
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let l:mode = mode() " Returns vim's current mode
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if l:mode ==# 'n'
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let g:StatlnPrimaryColor = GuiColors(synIDattr(synIDtrans(hlID('String')), 'fg', 'gui'), '#AFAF00')
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let g:mode_str = 'NORMAL' " Light green
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elseif l:mode ==# 'i'
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let g:StatlnPrimaryColor = GuiColors(synIDattr(synIDtrans(hlID('Function')), 'fg', 'gui'), '#83ADAD')
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let g:mode_str = 'INSERT' " Light blue
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elseif l:mode ==# 'R'
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let g:StatlnPrimaryColor = GuiColors(synIDattr(synIDtrans(hlID('Error')), 'bg', 'gui'), '#D75F5F')
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let g:mode_str = 'REPLACE' " Light red
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elseif l:mode ==# 'v'
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let g:StatlnPrimaryColor = GuiColors(synIDattr(synIDtrans(hlID('Keyword')), 'fg', 'gui'), '#D485AD')
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let g:mode_str = 'VISUAL' " Pink/light purple
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elseif l:mode ==# 'V'
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let g:StatlnPrimaryColor = GuiColors(synIDattr(synIDtrans(hlID('Keyword')), 'fg', 'gui'), '#D485AD')
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let g:mode_str = "V-LINE" " Pink/light purple
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elseif l:mode ==# "\<C-v>"
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let g:StatlnPrimaryColor = GuiColors(synIDattr(synIDtrans(hlID('Keyword')), 'fg', 'gui'), '#D485AD')
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let g:mode_str = "V-BLOCK" " Pink/light purple
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elseif l:mode ==# 's'
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let g:StatlnPrimaryColor = GuiColors(synIDattr(synIDtrans(hlID('Special')), 'fg', 'gui'), '#85AD85')
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let g:mode_str = 'SELECT' " Turquoise
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elseif l:mode ==# 'c'
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let g:StatlnPrimaryColor = GuiColors(synIDattr(synIDtrans(hlID('Special')), 'fg', 'gui'), '#85AD85')
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let g:mode_str = 'COMMAND' " Turquoise
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elseif l:mode ==# '!'
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let g:StatlnPrimaryColor = GuiColors(synIDattr(synIDtrans(hlID('Special')), 'fg', 'gui'), '#85AD85')
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let g:mode_str = 'SHELL' " Turquoise
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elseif l:mode ==# 't'
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let g:StatlnPrimaryColor = GuiColors(synIDattr(synIDtrans(hlID('Special')), 'fg', 'gui'), '#85AD85')
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let g:mode_str = 'TERM' " Turquoise
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else
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let g:StatlnPrimaryColor = GuiColors(synIDattr(synIDtrans(hlID('Special')), 'fg', 'gui'), '#85AD85')
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let g:mode_str = 'UNKNOWN' " Turquoise
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endif
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endfunction
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" }}}
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" ========================================================
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" # Statusline helper functions
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" ====================================================={{{
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" Returns the current git branch, or an empty string
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function! StatlnGitBranch()
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let l:branch = system('git branch --show-current')
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if l:branch !~ ' '
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return ' '
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else
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return ''
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endif
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endfunction
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" Modified buffer indicator
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function! StatlnModified()
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let l:is_modified = getbufinfo(bufnr('%'))[0].changed
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if l:is_modified && &readonly
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let l:modified_marker = '[!]' " Ah! You modified a read-only buffer
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elseif l:is_modified
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let l:modified_marker = '[+]'
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elseif &readonly
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let l:modified_marker = '[-]'
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else
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let l:modified_marker = '' " No indicator for unmodified normal buffer
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endif
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return l:modified_marker
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endfunction
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" Set the primary status/tabline color and the mode string
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function! StatlnMode()
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call SetGlobalPrimaryColor()
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call ReloadStatlnColors()
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" Redraws tabline and updates the global mode color
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" Required to synchronize tabline and statusline properly
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set tabline=%!TabLine()
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return g:mode_str . ' '
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endfunction
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" Upper estimate for the length of the active stausline, not inluding the
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" middle gap
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function! EstStatlnLength()
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let l:mode_len = 11
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let l:buff_len = len(fnamemodify(bufname("%"), ':t')) + 7
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let l:file_type_len = len(&filetype) + 6
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let l:line_metrics_len = len(string(line('$'))) * 2 + 12
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return l:mode_len + l:buff_len + l:file_type_len + l:line_metrics_len
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endfunction
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" }}}
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" ========================================================
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" # Build and reload Statusline
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" ====================================================={{{
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" Statusline for active window
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"
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" Switches to a compact version for narrow windows
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function! ActiveStatusline()
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" Update statusline on all events
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let l:track_mode='%{strpart(StatlnMode(), 0, 0)}'
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" Compact statusline ============================================
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" Current buffer's name centered with mode-specific background color
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let l:left='%#StatlnIdleHL#' . '%{StatlnSmall("margin_left")}'
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\ . '%#StatlnIdleToPrimaryHL#' . '%{StatlnSmall("seperator")}'
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let l:buff='%#StatlnPrimaryHL#' . '%{StatlnSmall("file_name")}'
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\ . '%#StatlnPrimaryToIdleHL#' . '%{StatlnSmall("seperator")}'
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let l:right='%#StatlnIdleHL#' . '%{StatlnSmall("margin_right")}'
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let l:small_line = l:left . l:buff . l:right
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" Left side =====================================================
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" Current mode bold and with a mode-specific background color
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let l:mode='%#StatlnPrimaryHL#' . '%{StatlnFull("mode")}'
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\ . '%#StatlnPrimaryToSubtleHL#' . '%{StatlnFull("seperator")}'
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" Current buffer's name and an indicator if it was modified
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let l:buff='%#StatlnSubtleHL#' . '%{StatlnFull("file_name")}'
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\ . '%#StatlnSubtleToIdleHL#' . '%{StatlnFull("seperator")}'
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let l:left_side = l:mode . l:buff . '%#StatlnIdleHL#'
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" Right side ====================================================
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let l:trans_from_gap='%#StatlnIdleToSubtleHL#' . '%{StatlnFull("seperator")}'
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" File type in []
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let l:file_type='%#StatlnSubtleHL#' . '%{StatlnFull("file_type")}'
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\ . '%#StatlnSubtleToPrimaryHL#' . '%{StatlnFull("seperator")}'
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" Scroll percentage, column, line / total lines, with mode-background color
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let l:line_metrics='%#StatlnPrimaryHL#%{StatlnFull("line_metrics")}'
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let l:right_side='%=' . l:trans_from_gap . l:file_type . l:line_metrics
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let l:full_line = l:left_side . l:right_side
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" Return all. Only one line with render at a time
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return l:track_mode . l:small_line . l:full_line
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endfunction
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" Returns component for the compact statusline
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"
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" Returns empty strings if the window is wide enough for a full sized
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" statusline
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function! StatlnFull(part)
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let l:is_small_window = winwidth(0) <= EstStatlnLength() - 18
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if !l:is_small_window
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if 'mode' ==# a:part
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return ' ' . StatlnMode()
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elseif 'seperator' ==# a:part
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return ' '
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elseif 'file_name' ==# a:part
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let l:file_name = fnamemodify(bufname('%'), ':t')
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" Blank buffer
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if len(l:file_name) == 0
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let l:file_name = '[No Name]'
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endif
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return ' ' . l:file_name . ' ' . StatlnModified()
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elseif 'file_type' ==# a:part
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" Blank buffer
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if len(&filetype) == 0
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return ''
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endif
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return '[' . &filetype . ']'
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elseif 'line_metrics' ==# a:part
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let l:total = line('$')
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let l:current = line('.')
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let l:frac = ' ' . l:current . '/' . l:total . ' '
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let l:col = printf('%2S', col('.'))
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let l:percent = float2nr(l:current * 100 / l:total) . '% ☰ '
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return l:percent . l:col . l:frac
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else
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echom 'Error: a:part for the full statusline doesn''t match any part'
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return ''
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endif
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else
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" Part indicated shouldn't render, since the compact statusline should
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" be rendering instead
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return ''
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endif
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endfunction
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" Returns component for full sized statusline
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"
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" Returns empty strings if the window is too narrow for a full sized
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" statusline
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function! StatlnSmall(part)
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let l:is_small_window = winwidth(0) <= EstStatlnLength() - 18
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if l:is_small_window
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if 'margin_left' ==# a:part
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return repeat('—', 7) . ' '
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elseif 'margin_right' ==# a:part
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let l:len = winwidth(0)
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\ - strchars(StatlnSmall('margin_left'))
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\ - strchars(StatlnSmall('file_name'))
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\ - 3 "Unclear where this magical constant appears
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return ' ' . repeat('—', l:len - 1)
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elseif 'seperator' ==# a:part
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return ' '
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elseif 'file_name' ==# a:part
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return ' ' . fnamemodify(bufname("%"), ':t') . ' ' . StatlnModified()
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else
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echom 'Error: a:part for the compact statusline doesn''t match any part'
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return ''
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endif
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else
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" Part shouldn't render since the window is wide enough for the full
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" statusline to render instead
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return ''
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endif
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endfunction
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" Status line for all windows except the focused window
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"
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" Transparent background with em-dash margins around the buffer's name
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function! IdleStatusline()
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call ReloadStatlnColors()
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set fillchars=stlnc:— " All empty space filled with em-dashes
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" Left padding to align file name with active stl.
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" Same background as editor makes it very minimalist
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return '%#StatlnIdleHL#—————————— %t %{StatlnModified()} '
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endfunction
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augroup SetStatusLine
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autocmd!
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au BufEnter,WinEnter * let &l:stl = ActiveStatusline()
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au BufLeave,WinLeave * let &l:stl = IdleStatusline()
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" Updates status/tabline when entering command prompt
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au CmdlineEnter * redraw
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||
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augroup end
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||
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" }}}
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||
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" Further reading:
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" https://shapeshed.com/vim-statuslines/
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" https://www.reddit.com/r/vim/comments/ld8h2j/i_made_a_status_line_from_scratch_no_plugins_used/
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