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Clean up

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This commit is contained in:
Isaiah Odhner 2023-04-27 00:57:37 -04:00
parent 4332ec1d58
commit 6e7b04da52
1 changed files with 8 additions and 28 deletions
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36
terminal-wallpaper.sh
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@ -11,55 +11,35 @@ TERMINAL_WALLPAPER=/home/io/Projects/textual-paint/samples/galaxies.ans
# Split lines of terminal background into array
IFS=$'\n' read -d '' -r -a lines < $TERMINAL_WALLPAPER
# # Strips ANSI codes from text
# # 1: The text
# # >: The ANSI stripped text
# function strip_ansi() {
# shopt -s extglob # function uses extended globbing
# printf %s "${1//$'\e'\[*([0-9;])m/}"
# }
# Measure image size
image_height=${#lines[@]}
image_width=0
for (( y=0; y<$image_height; y++ )); do
line=${lines[$y]}
# Have to strip ANSI escape sequences from line length
# line_width=50
line_length=${#line}
# line_width=$(echo $line | sed -r "s/\x1B\[([0-9]{1,2}(;[0-9]{1,2})?)?[m|K]//g" | wc -c)
filtered_line=$(sed -r "s/\x1B\[[0-9;]*[mK]//g" <<< "$line")
# line_width=$(echo "$filtered_line" | wc -c)
# line_width=$(strip_ansi "$line" | wc -c)
line_width=${#filtered_line}
# echo "y=$y line : $line line_length=$line_length line_width=$line_width"
# echo "y=$y filtered line: $filtered_line"
# echo "y=$y line : $line line_length=$line_length"
# echo "y=$y filtered line: $filtered_line line_width=$line_width"
# echo "stripped: $(strip_ansi "$line") $(strip_ansi "$line" | wc -c)"
if [[ $line_width -gt $image_width ]]; then
image_width=$line_width
fi
done
# echo "image_width: $image_width"
# echo "image_height: $image_height"
# Draw background centered
terminal_width=$(tput cols)
terminal_height=$(tput lines)
offset_x=$(( ($terminal_width - $image_width) / 2 ))
offset_y=$(( ($terminal_height - $image_height) / 2 ))
# echo "terminal_width: $terminal_width terminal_height: $terminal_height offset_x: $offset_x offset_y: $offset_y"
# ensure offset is positive
if [[ $offset_x -lt 0 ]]; then
offset_x=0
fi
if [[ $offset_y -lt 0 ]]; then
offset_y=0
fi
# Ensure offset is positive
if [[ $offset_x -lt 0 ]]; then offset_x=0; fi
if [[ $offset_y -lt 0 ]]; then offset_y=0; fi
# Draw image
for (( i=0; i<$image_height; i++ )); do
tput cup $(( $offset_y + $i )) $offset_x
echo -e "${lines[$i]}"
tput cup $(( $offset_y + $i )) $offset_x
echo -e "${lines[$i]}"
done
# Reset cursor position