demo_menu_fast

#!/bin/bash
source bashui

defb(){
    # Create default button to copy
    #1 X(row)  coordinate
    #2 Y(line) coordinate
    #3 Button name
    #4 Function to run
    #5 Text color
    #6 Border color
    #7 Background color
    #        1    2      3          4          5      6      7
    button "$1" "$2" "butt $3" "fun_${3,,}" "$wht" "$ylw" "$bblk"
}

clr(){ for i in {1..4}; do XY 1 $i "%${COLUMNS}s"; done; } # clear output area
but_d(){ defb "$1" "$2" D; }
but_e(){ defb "$1" "$2" E; }
but_f(){ defb "$1" "$2" F; }

fun_d(){ clr; XY 1 1 "butt D; target: $_target_"; }
fun_e(){ clr; XY 1 1 "butt E; description: ${_target_[1]}"; }
fun_f(){ clr; XY 1 1 "butt F; all items of target:"
              printf -v text -- '%s\n' "${_target_[@]}"
              XY 1 2  "$text"; }

clear
w=$((COLUMNS-10))
my_items(){
    local mess="Fast columns via percent of Width(${bred}Esc to exit$bblk)"
    items_fast 10 5 $w 20 '30 55 15' "$mess" "$wht" "$ylw" "$bblk" "$@"
}

data=(
    #-------------{ first line - column descriptions }--------------------
$red'Item name'        $blu'Item description'                 $grn'Status'
    #-----------------------{ the data }----------------------------------
    'first'                'Long description text'                'true'
    'second'               'Description 2'                        'O_o'
    'third'                'description 3'                        'false'
    'fourth'               'Long description text'                'true'
    ''                     ''                                     ''
    'fifth'                'Description 2'                        'O_o'
    'sixth'                'description 3'                        'false'
    'midle'                'Long description text'                'true'
    'long name row2'       'Description 2'                        'O_o'
    ''                     ''                                      ''
    'row 3'                'description 3'                        'false'
    'row1'                 'Long description text'                'true'
    'row1'                 'Long description text'                'true'
    'last'                 'Description 2'                        'O_o'
    'first'                'Long description text'                'true'
    'second'               'Description 2'                        'O_o'
    'third'                'description 3'                        'false'
    'fourth'               'Long description text'                'true'
    ''                     ''                                     ''
    'fifth'                'Description 2'                        'O_o'
    'sixth'                'description 3'                        'false'
    'midle'                'Long description text'                'true'
    'long name row2'       'Description 2'                        'O_o'
    ''                     ''                                      ''
    'row 3'                'description 3'                        'false'
    'row1'                 'Long description text'                'true'
    'row1'                 'Long description text'                'true'
    'last'                 'Description 2'                        'O_o'
)

xbuttons=(but_d but_e but_f)
butts (){ x_row $LINES "${xbuttons[@]}"; }
ilist (){ my_items     "${data[@]}"    ; }
menu  (){
    cursor off
    default_button but_d
    while true; do
        ilist
        butts
        read_input
        case $_input_ in
             up     ) select_prev_item "${data[@]}"    ;;
             down   ) select_next_item "${data[@]}"    ;;
             left   ) select_prev_butt "${xbuttons[@]}";;
             right  ) select_next_butt "${xbuttons[@]}";;
             enter  ) press_button         butts       ;;
             escape ) return;;
             pgup   ) select_prev_item  --fast   "${data[@]}";;
             pgdown ) select_next_item  --fast   "${data[@]}";;
             *      ) select_by_hot_key $_input_ "${data[@]}";;
        esac
    done
}

menu