1 files changed, 176 insertions, 0 deletions

diff --git a/plugin/vim-fancy-line.vim b/plugin/vim-fancy-line.vim
new file mode 100755
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@@ -0,0 +1,176 @@
+scriptencoding utf-8
+
+augroup MAX_FANCYLINE
+    set noshowmode    | " mode would otherwise be shown twice- in lightline and below. We want to deactivate one.
+    set laststatus=2  | " required by AirLine and Lightline, without status line does not appear until a window split
+
+
+    if (&term ==? 'linux' && &termguicolors == 0)
+        let g:group_active         = 'StatusLineTerm'
+        let g:group_inactive       = 'StatusLineTermNC'
+        let g:group_tabline        = 'TabLine'
+        let g:status_sym_start         = ''
+        let g:status_sym_end           = '▶'
+        let g:status_sym_sep_start     = '│'
+        let g:status_sym_sep_end       = '│'
+        let g:symbol_branch            = ''
+        let g:symbol_screen_edge       = '░'
+    else
+        let g:group_active         = 'StatusLine'
+        let g:group_inactive       = 'StatusLineNC'
+        let g:group_tabline        = 'TabLine'
+        let g:status_sym_start         = ''
+        let g:status_sym_end           = ''
+        let g:status_sym_sep_start     = '│'
+        let g:status_sym_sep_end       = '│'
+        let g:symbol_branch            = ''
+        let g:symbol_screen_edge       = '░'
+    endif
+
+
+    " this function reverts foreground color and background color of a given
+    " highlight group and returns the name of a newly created _invert group
+    function! CreateInvertGroup(highlight_group)
+
+        if(synIDattr(synIDtrans(hlID(a:highlight_group)), 'reverse')==0)
+            let w:color=synIDattr(hlID(a:highlight_group), 'bg#')
+            let w:termcolor=synIDattr(hlID(a:highlight_group), 'bg')
+        else
+            let w:color=synIDattr(hlID(a:highlight_group), 'fg#')
+            let w:termcolor=synIDattr(hlID(a:highlight_group), 'fg')
+        endif
+
+        let l:retval=a:highlight_group.'_invert'
+        if(exists('w:color') && w:color ==# '')
+            let w:color = 'NONE'
+        endif
+        if(exists('w:termcolor') && w:termcolor ==# '')
+            let w:termcolor = 'NONE'
+        endif
+
+        silent! exec 'highlight! '.l:retval.' guifg='.w:color
+        silent! exec 'highlight! '.l:retval.' ctermfg='.w:termcolor
+
+        return l:retval
+    endfunction
+
+    function! UpdateStatus(highlight_group)
+        let l:invert_group = CreateInvertGroup(a:highlight_group)
+        let l:mode = get({
+                    \  'n'      : 'normal',
+                    \  'i'      : 'insert',
+                    \  'R'      : 'replace',
+                    \  'v'      : 'visual',
+                    \  'V'      : 'visual line',
+                    \  "\<C-V>" : 'visual block',
+                    \  'c'      : 'command',
+                    \  's'      : 'select',
+                    \  'S'      : 'select line',
+                    \  "\<C-s>" : 'select block',
+                    \  't'      : 'terminal'
+                    \ }, mode(), mode())
+        return ''
+                    \ .'%#StatusLineHighlight#'
+                    \ .'%#'.a:highlight_group.'#'
+                    \ .g:symbol_screen_edge
+                    \ .'%{&buftype != "" ? " ".&buftype : ""}'
+                    \ .' '.l:mode.g:status_sym_sep_start
+                    \ .'%{argc() > 1 ? " ".(argidx() + 1).":".argc()." ".g:status_sym_sep_start : ""}'
+                    \ .'%{haslocaldir() ? fnamemodify(getcwd(), ":.:~")." " :""}'
+                    \ .'%{&readonly ? " 🔒" : ""}'
+                    \ .'%{&modified ? " 💾 " : ""}'
+                    \ .'%{" [".winbufnr(0)."] "}'
+                    \ .'%{bufname("%") == "" ? "" : fnamemodify(expand("%"), ":~:.")}'
+                    \ .'%{&titlestring ? has("nvim") ? b:term_title:expand(&titlestring) : "" }'
+                    \ .'%{exists("w:quickfix_title") ? w:quickfix_title : ""}'
+                    \ .' '
+                    \ .'%#'.l:invert_group.'#'
+                    \ .g:status_sym_end
+                    \ .'%<'
+                    \ .''
+                    \ .'%='
+                    \ .''
+                    \ .'%#'.l:invert_group.'#'
+                    \ .g:status_sym_start
+                    \ .'%#'.a:highlight_group.'#'.' '
+                    \ .'%{&buftype == "" ? "" : &buftype." ".g:status_sym_sep_end." "}'
+                    \ .'%{&filetype == "" ?  "" :&filetype." ".g:status_sym_sep_end." "}'
+                    \ .'%{&spell ? &spelllang." ".g:status_sym_sep_end : ""}'
+                    \ .'%{&fileencoding =~ "^$\\|^utf\-8$" ? "" : &fileencoding." ".g:status_sym_sep_end." "}'
+                    \ .'%{&fileformat =~ "^$\\|^unix$" ? "" : &fileformat." ".g:status_sym_sep_end}'
+                    \ .' '
+                    \ .'%cx%-l: '
+                    \ .g:status_sym_sep_end
+                    \ .' '
+                    \ .'%p%% '
+                    \ .g:symbol_screen_edge
+                    \ .'%#NonText#'
+    endfunction
+
+    function! UpdateTabline(highlight_group)
+        let l:invert_group = CreateInvertGroup(a:highlight_group)
+        let l:git_branch   = FugitiveHead()
+        return ''
+                    \ .'%#'.a:highlight_group.'#'
+                    \ .g:symbol_screen_edge
+                    \ .' '
+                    \ .'%#'.a:highlight_group.'#'
+                    \ .'%-2( %)'
+                    \ .'%{fnamemodify(getcwd(-1), ":~")}'
+                    \ .' '
+                    \ .'%{FugitiveHead() == "" ? "" : g:status_sym_sep_start." ".g:symbol_branch." ".FugitiveHead()}'
+                    \ .' '
+                    \ .'%#'.l:invert_group.'#'
+                    \ .g:status_sym_end
+                    \ .'%<'
+                    \ .'%='
+                    \ .'%#'.l:invert_group.'#'
+                    \ .g:status_sym_start
+                    \ .'%(%#'.a:highlight_group.'#%)'
+                    \ .' '
+                    \ .'%-2(%)'
+                    \ .'%(%#'.a:highlight_group.'#%)'
+                    \ .'%(%{v:servername} %{v:this_session}%)'
+                    \ .g:status_sym_sep_end.' '
+                    \ .'%-3(%)'
+                    \ .'%#'.a:highlight_group.'#'
+                    \ .'%{tabpagenr()}/%{tabpagenr()}'
+                    \ .' '
+                    \ .g:symbol_screen_edge
+                    \ .'%##'
+    endfunction
+
+
+    if $USER ==? 'root'
+        let highlight_group_root = "ErrorMsg"
+        let invert_group = CreateInvertGroup(highlight_group_root)
+        let g:group_tabline = highlight_group_root
+    endif
+
+    function! ApplyColorScheme()
+        " set termguicolors | " When on, uses highlight-guifg and highlight-guibg attributes in the terminal (=24bit color) incompatible with nvim
+        " set t_ut=
+        " set up statusline, global and current window individually
+        set statusline=%!UpdateStatus(g:group_inactive)
+        setlocal statusline=%!UpdateStatus(g:group_active)
+        " set up the tabline (match colors)
+        set tabline=%!UpdateTabline(g:group_tabline)
+
+        " otherwise 'bold' can mess up icon sizes and I do not know why
+        highlight! StatusLine cterm=reverse
+        " exec 'highlight! User3 guifg=#D2A032 guibg='.l:fgcolor
+
+        " workaround for VertSplit looking as a repeated slash, because its an
+        " italic bar...
+        highlight! VertSplit gui=NONE cterm=NONE term=NONE
+    endfunction
+    call ApplyColorScheme()
+
+    " apply colors from the loaded colorscheme...
+    " when changing the colorscheme also apply new colors to the statusbar...
+    autocmd ColorScheme * call ApplyColorScheme()
+    autocmd WinEnter    * setlocal statusline=%!UpdateStatus(g:group_active)
+    autocmd WinLeave    * setlocal statusline<
+augroup END " MAX_FANCYLINE
+
+" vim: shiftwidth=4 tabstop=4 expandtab softtabstop=4