# ==============================================================================
# basic screen settings

# don't display lengthy license and version information on startup
startup_message off

# don't log new windows to utmp (who and such won't work, which is fine)
deflogin off

# automatically detach on terminal hangup (so that one can attach again and
# continue working)
autodetach on

# ignore case on searches in copy-mode
ignorecase on

# assume UTF-8 encoding
defutf8 on

# use 256-color palette
term screen-256color

# no visual bell
vbell off

# disable flow control as it conflicts with Ctrl-S prefix
defflow off

# erase background with current bg color
defbce on

# remove delay after pressing escape key inside screen
maptimeout 0

# start screen with a new layout (none by default)
layout new initial

# wait up to three seconds before hiding last message (default is 5 seconds)
msgwait 3

# ==============================================================================
# some xterm specific magic (not sure if it's actually required, but it was in
# default configuration file)

# terminfo and termcap for nice 256 color terminal
# tell screen how to set colors. AB = background, AF=foreground
termcapinfo xterm 'Co#256:AB=\E[48;5;%dm:AF=\E[38;5;%dm'

# xterm-52 tweaks:
# - uses background color for delete operations
termcapinfo xterm be

# tell xterm to enable scrolling when 'screen' is running
termcapinfo xterm ti@:te@

# xterm understands both im/ic and doesn't have a status line.
termcap  xterm hs@:cs=\E[%i%d;%dr:im=\E[4h:ei=\E[4l
terminfo xterm hs@:cs=\E[%i%p1%d;%p2%dr:im=\E[4h:ei=\E[4l

# 80/132 column switching must be enabled for ^AW to work
# change init sequence to not switch width
termcapinfo xterm Z0=\E[?3h:Z1=\E[?3l:is=\E[r\E[m\E[2J\E[H\E[?7h\E[?1;4;6l

# make the output buffer large for (fast) xterms.
termcapinfo xterm* OL=10000

# tell screen that xterm can switch to dark background and has function keys
termcapinfo xterm 'VR=\E[?5h:VN=\E[?5l'
termcapinfo xterm 'k1=\E[11~:k2=\E[12~:k3=\E[13~:k4=\E[14~'
termcapinfo xterm 'kh=\EOH:kI=\E[2~:kD=\E[3~:kH=\EOF:kP=\E[5~:kN=\E[6~'

# special xterm hardstatus: use the window title
termcapinfo xterm 'hs:ts=\E]2;:fs=\007:ds=\E]2;screen\007'

termcapinfo xterm 'vi=\E[?25l:ve=\E[34h\E[?25h:vs=\E[34l'

# emulate part of the 'K' charset
termcapinfo xterm 'XC=K%,%\E(B,[\304,\\\\\326,]\334,{\344,|\366,}\374,~\337'

# xterm-52 tweak: use background color for delete operations
termcapinfo xterm* be

# ==============================================================================
# parameters of windows

# enable alternative screen
altscreen on

# use big scrollback buffer
defscrollback 5000

# suppress trailing blank lines when scrolling up text into the history buffer
compacthist on

# ==============================================================================
# looks

# set title automatically based on terminal prompt (requires additional
# configuration of the prompt)
shelltitle '$ |bash'

# set color of borders and command-line (cyan background, black foreground)
rendition so = ck

# status line with current window highlighted
hardstatus alwayslastline '%{Rk}%?%{dd}%E ESC %{Rk}%:     %?%=%?%{gk} %-Lw%?%{kW} %n*%f%t%?(%u)%? %{= gk}%?%+Lw %{Rk}%:%{Rk} %?%='

# ==============================================================================
# keybindings

# change prefix key to Ctrl-S
escape "^S^S"

# vim-like navigation between windows
bind h focus left
bind j focus down
bind k focus up
bind l focus right

# switch to previous window
bind ' ' other

# reload configuration file (note that this creates extra layout)
bind r source ~/.screenrc

# create new window with a shell prompt
bind C screen

# split horizontally creating new shell prompt
bind - eval split 'focus down' screen

# split vertically creating new shell prompt
bind | eval 'split -v' 'focus right' screen

# most of the time it's handy to kill a region and window simultaneously, so
# make it easy to do with "x"
bind x eval kill remove

# ------------------------------------------------------------------------------
# layouts

# create new layout with a shell prompt
bind c eval 'layout new' screen

# switch between layouts with Alt+Number
bindkey "^[0" layout select 0
bindkey "^[1" layout select 1
bindkey "^[2" layout select 2
bindkey "^[3" layout select 3
bindkey "^[4" layout select 4
bindkey "^[5" layout select 5
bindkey "^[6" layout select 6
bindkey "^[7" layout select 7
bindkey "^[8" layout select 8
bindkey "^[9" layout select 9

# switch to next layout
bind n layout next

# switch to previous layout
bind p layout prev

# create new empty layout
bind N layout new

# remove current layout
bind q layout remove

# ------------------------------------------------------------------------------
# copy-mode
# http://snarfed.org/synchronizing_gnu_screens_paste_buffer_and_the_x_selection

# v - start selection
# y - start line-wise selection
# J - scroll down
# K - scroll up
markkeys "^M=v:y=V:^E=J:^Y=K"

# > - copy selection to system clipboard
bindkey -m > eval "stuff ' '" writebuf "exec sh -c 'xsel < /tmp/screen-exchange'"

# ------------------------------------------------------------------------------
# resize-mode
# https://gist.github.com/joaopizani/2718397

# put screen into resize mode
bind R command -c rsz

# use hjkl keys to resize regions
bind -c rsz h eval "resize -h -5" "command -c rsz"
bind -c rsz j eval "resize -v -5" "command -c rsz"
bind -c rsz k eval "resize -v +5" "command -c rsz"
bind -c rsz l eval "resize -h +5" "command -c rsz"

# use HJKL keys to move between regions
bind -c rsz H eval "focus left"  "command -c rsz"
bind -c rsz J eval "focus down"  "command -c rsz"
bind -c rsz K eval "focus up"    "command -c rsz"
bind -c rsz L eval "focus right" "command -c rsz"