bxdraw

#!/bin/bash
bxdraw_version="1"

## Layer I
function cur:set { printf '\e[%s;%sH' "$2" "$1"; }
function cur:back { printf '\e[%sZ' "$1"; }
function cur:setx { printf '\e[%sG' "$1"; }
function cur:next-line { printf '\e[%sE' "$1"; }
function cur:prev-line { printf '\e[%sF' "$1"; }
function cur:left { printf '\e[%sD' "$1"; }
function cur:down { printf '\e[%sB' "$1"; }
function cur:right { printf '\e[%sC' "$1"; }
function cur:up { printf '\e[%sA' "$1"; }
function cur:delete-right { printf '\e[%sP' "$1"; }
function cur:save { printf '\e8'; }
function cur:restore { printf '\e7'; }

function cur:get {
	local -n x="$1"
	local -n y="$2"
    IFS='[;' read -p $'\e[6n' -d R -rs _ y x _
}

function scr:clear { printf '\ec'; }
###
function scr:clear:cur-end { printf '\e[0J'; }
function scr:clear:cur-beg { printf '\e[1J'; }
function scr:clear:clear { printf '\e[2J'; }
function scr:clear:clear-all { printf '\e[3J'; }

function line:clear:cur-end { printf '\e[0K'; }
function line:clear:cur-beg { printf '\e[1K'; }
function line:clear { printf '\e[2K'; }

function src:scroll-up { printf '\e[%sS' "$1"; }
function src:scroll-down { printf '\e[%sT' "$1"; }

# todo: mouse
#function clip:copy { printf '\e[52;c;<base64_encoded_text>\e\\'; }

#Start Hyperlink: ESC]8;;<URL>ESC\
#End Hyperlink: ESC]8;;ESC\

## Layer II

function print:line {
	local _bxdr__lp
	printf -v _bxdr__lp '%*s' "${1}" ''
	printf '%b' "${_bxdr__lp// /${2}}"
}
function print:border {
	local _bxdr__lp
	printf -v _bxdr__lp '%*s' "${1}" ''
	printf '%b' "${_bxdr__lp// /${3}}"
	cur:left "${1}"
	for ((i=1; i<${2}; i++)); do
		printf '%s' "${3}"
		cur:right $((${1}-2))
		printf '%s' "${3}"
		cur:down
		cur:left "${1}"
	done
	printf '%s' "${_bxdr__lp// /${3}}"
}
function print:rectangle {
	local _bxdr__lp
	printf -v _bxdr__lp '%*s' "${1}" ''
	printf '%b' "${_bxdr__lp// /${3}}"
	cur:left "${1}"
	for ((i=0; i<=${2}; i++)); do
		printf '%b' "${_bxdr__lp// /${3}}"
		cur:down
		cur:left "${1}"
	done
}