From f2e01d7e513067ddb57c75f6e38cdcf434946cf8 Mon Sep 17 00:00:00 2001
From: Max Christian Pohle
Date: Mon, 22 Oct 2018 00:02:58 +0200
Subject: Major refactoring for version 2.0

vim-plug has been removed and replaced with Vims internal bundle
mechanism. But I already noticed, that there is also GLVM now and
started trying that as well.
---
 plugin/statusline.vim | 125 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 125 insertions(+)
 create mode 100644 plugin/statusline.vim

(limited to 'plugin/statusline.vim')

diff --git a/plugin/statusline.vim b/plugin/statusline.vim
new file mode 100644
index 0000000..98fc4a9
--- /dev/null
+++ b/plugin/statusline.vim
@@ -0,0 +1,125 @@
+augroup MAX_FANCYLINE
+    set noshowmode    | " mode will be shown twice, in lightline and below, so we want to deactivate one
+    set laststatus=2  | " required by AirLine and Lightline, without status line does not appear until a window split
+
+    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        = ''
+
+    if &term == "linux"
+        let g:symbol_branch      = ''
+
+        let g:group_active       = "StatusLineTerm"
+        let g:group_inactive     = "StatusLineTermNC"
+        let g:group_tabline      = "StatusLineTerm"
+    else
+        let g:group_active       = "StatusLine"
+        let g:group_inactive     = "StatusLineNC"
+        let g:group_tabline      = "TabLine"
+    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(hlID(a:highlight_group), "reverse")==1)
+            let w:color=synIDattr(hlID(a:highlight_group), "fg#")
+        else
+            let w:color=synIDattr(hlID(a:highlight_group), "bg#")
+        endif
+
+        let l:retval=a:highlight_group.'_invert'
+        if(exists('w:color') && w:color == '')
+            let w:color = 'NONE'
+        endif
+        silent! exec 'highlight '.retval.' gui=NONE guifg='.w:color.' cterm=NONE ctermfg='.w:color
+        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."#"
+                    \ ."%(%w%h%q%)".' '.l:mode.' '.g:status_sym_sep_start.' '
+                    \ ."%{(argc()>0\ ?\ argidx()+1.':'.argc().' '.g:status_sym_sep_start.' '\ :\ '')}"
+                    \ ."%{winbufnr(0).' '.g:status_sym_sep_start}"
+                    \ ."%{(&readonly\ ?\ '\ \ 🔒'\ :\ '')}"
+                    \ ."%{(&modified\ ?\ '\ \ '.nr2char(0xF0C7).'\ '\ :\ '')\ }"
+                    \ ."%{(haslocaldir() ?\ fnamemodify(getcwd(),\ ':.').' '.nr2char(0xe0b1)\ \:\ '')}\ "
+                    \ ."%{(&buftype\ ==\ \"terminal\"\ ?\ has('nvim')?b:term_title:expand(&titlestring)\ :\ substitute(expand('%:p'),\ '^'.getcwd(-1).'/*',\ '',\ ''))\ }"
+                    \ ."%1(%)"
+                    \ ."%#".l:invert_group."#"
+                    \ .g:status_sym_end
+                    \ .''
+                    \ ."%="
+                    \ .''
+                    \ ."%#".l:invert_group."#"
+                    \ .g:status_sym_start
+                    \ ."%#".a:highlight_group."#"
+                    \ ."%1(%)"
+                    \ ."%{(&filetype\ !=\ ''\ ?\ &filetype\ :\ &buftype)}"
+                    \ ."%(\ %{g:status_sym_sep_end}\ %)"
+                    \ ."%{(&spell\ ?\ &spelllang.' '.g:status_sym_sep_end\ :\ '')}"
+                    \ ."%{(&fileencoding\ !=\ ''\ ?\ &fileencoding.' '.g:status_sym_sep_end.' '\ :\ '')}"
+                    \ ."%{(&fileformat\ !=\ ''\ ?\ ' '.&fileformat.' '\ :\ '')}"
+                    \ .g:status_sym_sep_end.' '
+                    \ ."%4l:%-3c"
+                    \ .g:status_sym_sep_end.' '
+                    \ ."%-3p%%"
+    endfunction
+
+    function! UpdateTabline(highlight_group)
+        let l:invert_group = CreateInvertGroup(a:highlight_group)
+        return ''
+                    \ ."%#".a:highlight_group."#"
+                    \ ."%3( \ %)\ "
+                    \ ."%{getcwd(-1)}\ "
+                    \ .g:status_sym_sep_start.' '
+                    \ ."%(\ ".g:symbol_branch."\ %{fugitive#head()}\ %)"
+                    \ ."%#".l:invert_group."#"
+                    \ .g:status_sym_end
+                    \ .''
+                    \ ."%="
+                    \ .''
+                    \ ."%#".l:invert_group."#"
+                    \ .g:status_sym_start
+                    \ ."%#".a:highlight_group."#"
+                    \ ."%3(\ %)"
+                    \ ."%(%{v:servername}\ %{v:this_session}%)"
+                    \ .g:status_sym_sep_end.' '
+                    \ ."%(\ \ %{tabpagenr()}/%{tabpagenr('$')}\ %)"
+                    \ ."%##"
+                    \ ."" " end
+    endfunction
+
+    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)
+    endfunction
+    " apply colors from the loaded colorscheme...
+    " when changing the colorscheme also apply new colors to the statusbar...
+    autocmd VimEnter,ColorScheme  * call ApplyColorScheme()
+
+    autocmd WinEnter    * setlocal statusline=%!UpdateStatus(g:group_active)
+    autocmd WinLeave    * setlocal statusline<
+augroup END " MAX_FANCYLINE
-- 
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