" set UTF-8 encoding
set enc=utf-8
set fenc=utf-8
set termencoding=utf-8
" disable vi compatibility (emulation of old bugs)
set nocompatible
" use indentation of previous line
set autoindent
" use intelligent indentation for C
set smartindent
" set automatically in cpp files
" set cindent
" configure tabwidth and insert spaces instead of tabs
set tabstop=4        " tab width is 4 spaces
set shiftwidth=4     " indent also with 4 spaces
set expandtab        " expand tabs to spaces
" wrap lines at 120 chars. 80 is somewaht antiquated with nowadays displays.
set textwidth=120
" set the working directory to wherever the open file lives
autocmd BufEnter * silent! lcd %:p:h
" turn syntax highlighting on
syntax on
" show eol
set list
" turn line numbers on
set number
" highlight matching braces
set showmatch
" intelligent comments
set comments=sl:/*,mb:\ *,elx:\ */
" set folding based on syntax
" set foldenable
set foldmethod=indent
set foldnestmax=10
set nofoldenable
set foldlevel=2
" ignore case on autocomplete
set ignorecase
set infercase
set smartcase

set sessionoptions=blank,buffers,curdir,folds,globals,options,resize,tabpages,winsize
" Automatically save the session when leaving Vim
autocmd! VimLeave * mksession! ~/.vim/default_session.vim
" Automatically load the session when entering vim
autocmd! VimEnter * source ~/.vim/default_session.vim

" tags for C++
set tags+=~/.vim/tags/cpp
set tags+=~/.vim/tags/gl
set tags+=~/.vim/tags/sdl
set tags+=~/.vim/tags/qt4
set tags+=~/.vim/tags/qt5
set tags+=~/.vim/commontags

" autocompletion options
set wildmenu
set wildmode=longest:list,full
" set wildcharm=<tab>.

if has("gui_running")
    set guioptions=icpM
    if has('win32') || has('win64')
        if (v:version == 704 && has("patch393")) || v:version > 704
            set renderoptions=type:directx,level:0.5,gamma:1.5,contrast:0.25,geom:1,renmode:5,taamode:1
            set guifont=Consolas:h11
        endif
    endif
endif

let mapleader = ","

nmap <Leader>f :GFiles<CR>
nmap <Leader>F :Files<CR>
nmap <Leader>b :Buffers<CR>
nmap <Leader>h :History<CR>
nmap <Leader>t :BTags<CR>
nmap <Leader>T :Tags<CR>
nmap <Leader>l :BLines<CR>
nmap <Leader>L :Lines<CR>
nmap <Leader>a :Ag<Space>
nmap <Leader>H :Helptags!<CR>
nmap <Leader>C :Commands<CR>
nmap <Leader>: :History:<CR>
nmap <Leader>/ :History/<CR>
nmap <Leader>s :Filetypes<CR>

" `gf` opens file under cursor in a new vertical split
nnoremap gf :vertical wincmd f<CR>

" switch between header/source with F4
map <F4> :e %:p:s,.h$,.X123X,:s,.cpp$,.h,:s,.X123X$,.cpp,<CR>

" goto definition with F12
map <F12> <g]>

map <Leader>q :bp<bar>sp<bar>bn<bar>bd<CR>

" Specify a directory for plugins
" - For Neovim: ~/.local/share/nvim/plugged
" - Avoid using standard Vim directory names like 'plugin'
call plug#begin('~/.vim/plugged')

" On-demand loading
Plug 'scrooloose/nerdtree', { 'on':  'NERDTreeFind' }

" Plugin outside ~/.vim/plugged with post-update hook
Plug 'junegunn/fzf', { 'dir': '~/.fzf', 'do': './install --all' }
Plug 'junegunn/fzf.vim'

Plug 'tomasr/molokai'

Plug 'vim-airline/vim-airline'
Plug 'vim-airline/vim-airline-themes'

Plug 'FromtonRouge/OmniCppComplete'

Plug 'octol/vim-cpp-enhanced-highlight'

" Initialize plugin system
call plug#end()

colorscheme molokai
let g:airline_theme='molokai'

map <F8> :NERDTree<Space>%<CR>

" OmniCppComplete
au BufNewFile,BufRead,BufEnter *.cpp,*.hpp,*.c,*.h set omnifunc=omni#cpp#complete#Main
let OmniCpp_NamespaceSearch = 1
let OmniCpp_GlobalScopeSearch = 1
let OmniCpp_ShowAccess = 1
let OmniCpp_ShowPrototypeInAbbr = 1 " show function parameters
let OmniCpp_MayCompleteDot = 0 " autocomplete after .
let OmniCpp_MayCompleteArrow = 0 " autocomplete after ->
let OmniCpp_MayCompleteScope = 0 " autocomplete after ::
let OmniCpp_DefaultNamespaces = ["std", "_GLIBCXX_STD"]
" automatically open and close the popup menu / preview window
au CursorMovedI,InsertLeave * if pumvisible() == 0|silent! pclose|endif
set completeopt=menuone,menu,longest,preview
inoremap <C-Space> <C-x><C-o>

" C++ highlighting
let g:cpp_member_variable_highlight = 1
let g:cpp_class_decl_highlight = 1
let c_no_curly_error=1