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Images; Rewrite functions

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This commit is contained in:
Dylan Araps 2016-11-13 15:12:22 +11:00
parent 5ccbb39fbf
commit a1b79bd33b
1 changed files with 87 additions and 57 deletions
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@ -1791,13 +1791,17 @@ get_cols() {
# Add newlines to the string. # Add newlines to the string.
cols="${cols%%'nl'}" cols="${cols%%'nl'}"
cols="${cols//nl/\\n${padding}${zws}}" cols="${cols//nl/\\n\\033[${text_padding}C${zws}}"
fi fi
} }
# IMAGES # IMAGES
get_image_backend() { get_image_backend() {
# This function determines which image backend to use
# by checking for programs and etc.
# Automatically find w3m-img
get_w3m_img_path get_w3m_img_path
# Fallback to ascii mode if imagemagick isn't installed. # Fallback to ascii mode if imagemagick isn't installed.
@ -1815,11 +1819,18 @@ get_image_backend() {
else else
img="$image_source" img="$image_source"
fi fi
[ ! -f "$img" ] && { image_backend="ascii"; get_ascii 2>/dev/null; return; }
;; ;;
esac esac
# Fallback to ascii mode if image isn't a file.
if [[ ! -f "$img" ]]; then
image_backend="ascii"
get_ascii 2>/dev/null
err "Image: '$img', doesn't exist, falling back to ascii mode."
return
fi
# Set image program.
if [[ -n "$ITERM_PROFILE" ]]; then if [[ -n "$ITERM_PROFILE" ]]; then
image_program="iterm2" image_program="iterm2"
@ -1830,12 +1841,16 @@ get_image_backend() {
image_program="w3m" image_program="w3m"
fi fi
get_term_size
get_image_size
make_thumbnail make_thumbnail
display_image
# If the backend is still set to 'image' after
# make_thumbnail(), then display the image.
[[ "$image_backend" == "image" ]] && display_image
;; ;;
"ascii") get_ascii 2>/dev/null ;; "ascii") get_ascii 2>/dev/null ;;
"off") ;;
esac esac
} }
@ -1871,7 +1886,7 @@ get_ascii() {
# If the ascii file doesn't exist fallback to text mode. # If the ascii file doesn't exist fallback to text mode.
if [[ ! -f "$script_dir/ascii/distro/${ascii/ *}" ]]; then if [[ ! -f "$script_dir/ascii/distro/${ascii/ *}" ]]; then
padding="\033[0C" text_padding="0"
image="off" image="off"
err "Ascii: Ascii file not found, falling back to text mode." err "Ascii: Ascii file not found, falling back to text mode."
return return
@ -1906,7 +1921,7 @@ get_ascii() {
# Overwrite padding if ascii_length_force is set. # Overwrite padding if ascii_length_force is set.
[[ "$ascii_length_force" ]] && ascii_length="$ascii_length_force" [[ "$ascii_length_force" ]] && ascii_length="$ascii_length_force"
padding="\033[$((ascii_length + gap))C" text_padding="$((ascii_length + gap))"
printf "%b" "$print" printf "%b" "$print"
export LC_ALL=C export LC_ALL=C
} }
@ -1985,7 +2000,18 @@ get_wallpaper() {
[[ -z "$img" ]] && err "Image: Wallpaper detection failed, falling back to ascii mode." [[ -z "$img" ]] && err "Image: Wallpaper detection failed, falling back to ascii mode."
} }
make_thumbnail() { get_term_size() {
# This functions gets the current window size in
# pixels.
#
# We first try to use the escape sequence '\044[14t'
# to get the terminal window size in pixels. If this
# fails we then fallback to using 'xdotool' or other
# programs.
# Tmux has a special way of reading escape sequences
# so we have to use a slightly different sequence to
# get the terminal size.
if [[ -n "$TMUX" ]]; then if [[ -n "$TMUX" ]]; then
printf "%b" "\033Ptmux;\033\033[14t\033\033[c\033\\" printf "%b" "\033Ptmux;\033\033[14t\033\033[c\033\\"
read_flags="-d c" read_flags="-d c"
@ -1998,10 +2024,12 @@ make_thumbnail() {
read_flags="-d c" read_flags="-d c"
fi fi
# The escape code above prints the output AFTER the prompt so this # The escape codes above print the desired output as
# user input so we have to use read to store the out
# -put as a variable.
builtin read -s -t 1 ${read_flags} -r term_size builtin read -s -t 1 ${read_flags} -r term_size
# Split the string # Split the string into height/width.
if [[ "$image_program" == "tycat" ]]; then if [[ "$image_program" == "tycat" ]]; then
term_size=(${term_size//;/ }) term_size=(${term_size//;/ })
term_width="$((term_size[2] * term_size[0]))" term_width="$((term_size[2] * term_size[0]))"
@ -2017,46 +2045,49 @@ make_thumbnail() {
fi fi
# Get terminal width and height if \033[14t is unsupported. # Get terminal width and height if \033[14t is unsupported.
if (("${#term_size}" <= 5)) && [[ "$image_program" != "tycat" ]]; then if (("${#term_size}" <= 5)) && [[ "$image_program" == "w3m" ]]; then
if type -p xdotool >/dev/null 2>&1 && \ if type -p xdotool >/dev/null 2>&1; then
[[ "$image_backend" != "iterm2" ]]; then
current_window="$(xdotool getactivewindow)" current_window="$(xdotool getactivewindow)"
source <(xdotool getwindowgeometry --shell "$current_window") source <(xdotool getwindowgeometry --shell "$current_window")
term_height="$HEIGHT" term_height="$HEIGHT"
term_width="$WIDTH" term_width="$WIDTH"
elif type -p xwininfo >/dev/null 2>&1 && \ elif type -p xwininfo >/dev/null 2>&1; then
type -p xdpyinfo >/dev/null 2>&1 || \ # Get the focused window's ID.
type -p xprop >/dev/null 2>&1 && \
[[ "$image_program" != "iterm2" ]]; then
if type -p xdpyinfo >/dev/null 2>&1; then if type -p xdpyinfo >/dev/null 2>&1; then
current_window="$(xdpyinfo | grep -F "focus" | grep -E -o "0x[0-9a-f]+")" current_window="$(xdpyinfo | grep -F "focus" | grep -E -o "0x[0-9a-f]+")"
elif type -p xprop >/dev/null 2>&1; then elif type -p xprop >/dev/null 2>&1; then
current_window="$(xprop -root | awk '/_NET_ACTIVE_WINDOW\(WINDOW\)/{print $NF}')" current_window="$(xprop -root | awk '/_NET_ACTIVE_WINDOW\(WINDOW\)/{print $NF}')"
fi fi
# If the ID was found get the window size.
if [[ "$current_window" ]]; then
term_size="$(xwininfo -id "$current_window" | awk -F ': ' '/Width|Height/ {printf $2 " "}')" term_size="$(xwininfo -id "$current_window" | awk -F ': ' '/Width|Height/ {printf $2 " "}')"
term_width="${term_size/ *}" term_width="${term_size/ *}"
term_height="${term_size/${term_width}}" term_height="${term_size/${term_width}}"
else
term_width="0"
fi
else
term_width="0"
fi fi
fi fi
# If $img isn't a file fallback to ascii mode. # If $img isn't a file fallback to ascii mode.
if [[ ! -f "$img" || -z "$term_width" ]] || (("$term_width" <= 10)); then if [[ "$term_width" ]] && ((term_width > 0)); then
image="ascii"
get_ascii
# Error messages
[[ ! -f "$img" ]] && err "Image: \$img, isn't a file, falling back to ascii mode."
(("${#term_size}" <= 5)) && err "Image: Your terminal doesn't support \\\033[14t, falling back to ascii mode."
return
else
clear clear
zws="​ " zws="​ "
else
image_backend="ascii"
get_ascii
err "Image: Failed to get window size, falling back to ascii mode."
return
fi fi
}
get_image_size() {
# This functions determines the size to make
# the thumbnail image.
# Get terminal lines and columns # Get terminal lines and columns
term_blocks="$(stty size)" term_blocks="$(stty size)"
@ -2067,7 +2098,6 @@ make_thumbnail() {
font_width="$((term_width / columns))" font_width="$((term_width / columns))"
font_height="$((term_height / lines))" font_height="$((term_height / lines))"
# Image size is half of the terminal
case "$image_size" in case "$image_size" in
"auto") "auto")
image_size="$((columns * font_width / 2))" image_size="$((columns * font_width / 2))"
@ -2096,25 +2126,29 @@ make_thumbnail() {
*) image_size="${image_size/px}" ;; *) image_size="${image_size/px}" ;;
esac esac
# Fallback if width / height are empty.
width="${width:-$image_size}" width="${width:-$image_size}"
height="${height:-$image_size}" height="${height:-$image_size}"
# Padding is half the terminal width + gap text_padding="$((width / font_width + gap + xoffset/font_width))"
padding="\033[$((width / font_width + gap + xoffset/font_width))C" }
# Make the directory if it doesn't exist make_thumbnail() {
mkdir -p "$thumbnail_dir" # Name the thumbnail using variables so we can
# use it later.
imgname="$crop_mode-$crop_offset-$width-$height"
# Check to see if the image has a file extension, if it doesn't # Check to see if the image has a file extension,
# then add one. # if it doesn't then add one.
case "${img##*/}" in case "${img##*/}" in
*"."*) imgname="$crop_mode-$crop_offset-$width-$height-${img##*/}" ;; *"."*) imgname="${imgname}-${img##*/}" ;;
*) imgname="$crop_mode-$crop_offset-$width-$height-${img##*/}.jpg" ;; *) imgname="${imgname}-${img##*/}.jpg" ;;
esac esac
# Check to see if the thumbnail exists before we do any cropping. # Check to see if the thumbnail exists before we do any cropping.
if [[ ! -f "$thumbnail_dir/$imgname" ]]; then if [[ ! -f "$thumbnail_dir/$imgname" ]]; then
# Create the thumbnail dir if it doesn't exist.
mkdir -p "$thumbnail_dir"
# Get image size so that we can do a better crop # Get image size so that we can do a better crop
if [[ -z "$size" ]]; then if [[ -z "$size" ]]; then
size="$(identify -format "%w %h" "$img")" size="$(identify -format "%w %h" "$img")"
@ -2128,7 +2162,7 @@ make_thumbnail() {
fi fi
case "$crop_mode" in case "$crop_mode" in
fit) "fit")
c="$(convert "$img" \ c="$(convert "$img" \
-colorspace srgb \ -colorspace srgb \
-format "%[pixel:p{0,0}]" info:)" -format "%[pixel:p{0,0}]" info:)"
@ -2143,7 +2177,7 @@ make_thumbnail() {
"$thumbnail_dir/$imgname" "$thumbnail_dir/$imgname"
;; ;;
fill) "fill")
convert \ convert \
"$img" \ "$img" \
-trim +repage \ -trim +repage \
@ -2152,7 +2186,7 @@ make_thumbnail() {
"$thumbnail_dir/$imgname" "$thumbnail_dir/$imgname"
;; ;;
none) cp "$img" "$thumbnail_dir/$imgname" ;; "none") cp "$img" "$thumbnail_dir/$imgname" ;;
*) *)
convert \ convert \
"$img" \ "$img" \
@ -2176,7 +2210,7 @@ display_image() {
# appearing in specific terminal emulators. # appearing in specific terminal emulators.
sleep 0.05 sleep 0.05
printf "%b\n" "0;1;$xoffset;$yoffset;$width;$height;;;;;$img\n4;\n3;" |\ printf "%b\n" "0;1;$xoffset;$yoffset;$width;$height;;;;;$img\n4;\n3;" |\
"$w3m_img_path" -bg "$background_color" >/dev/null & 2>&1 || padding="\033[0C" "$w3m_img_path" -bg "$background_color" >/dev/null & 2>&1 || text_padding="0"
;; ;;
"iterm2") "iterm2")
@ -2273,7 +2307,7 @@ info() {
[[ -z "$2" ]] && string="${string/*: }" [[ -z "$2" ]] && string="${string/*: }"
# Print the string # Print the string
printf "%b\n" "${padding}${zws}${string}${reset} " printf "%b\n" "\033[${text_padding}C${zws}${string}${reset} "
# Calculate info height # Calculate info height
info_height="$((info_height+=1))" info_height="$((info_height+=1))"
@ -2281,10 +2315,8 @@ info() {
# Fix rendering issues with w3m and lines that # Fix rendering issues with w3m and lines that
# wrap to the next line by adding a max line # wrap to the next line by adding a max line
# length. # length.
if [[ "$image" != "off" && "$image" != "ascii" && "$1" != "cols" ]]; then [[ "$image_backend" == "image" ]] && \
padding_num="${padding/\\033\[}" string="$(printf "%.$((columns - text_padding - gap))s" "$string")"
output="$(printf "%.$((columns - ${padding_num/C} - gap - ${#subtitle}))s" "$output")"
fi
} }
prin() { prin() {
@ -2301,7 +2333,7 @@ prin() {
string="$(trim "$string")" string="$(trim "$string")"
# Print the info # Print the info
printf "%b\n" "${padding}${zws}${string}${reset} " printf "%b\n" "\033[${text_padding}C${zws}${string}${reset} "
# Calculate info height # Calculate info height
info_height="$((info_height+=1))" info_height="$((info_height+=1))"
@ -2309,10 +2341,8 @@ prin() {
# Fix rendering issues with w3m and lines that # Fix rendering issues with w3m and lines that
# wrap to the next line by adding a max line # wrap to the next line by adding a max line
# length. # length.
if [[ "$image" != "off" && "$image" != "ascii" ]]; then [[ "$image_backend" == "image" ]] && \
padding_num="${padding/\\033\[}" string="$(printf "%.$((columns - text_padding - gap))s" "$string")"
string="$(printf "%.$((columns - ${padding_num/C} - gap))s" "$string")"
fi
# Tell info() that prin() was used. # Tell info() that prin() was used.
prin=1 prin=1
@ -3137,7 +3167,7 @@ main() {
# w3m-img: Draw the image a second time to fix # w3m-img: Draw the image a second time to fix
# rendering issues in specific terminal emulators. # rendering issues in specific terminal emulators.
[[ "$image_program" == "w3m" ]] && display_image [[ "$image_backend" == "image" && "$image_program" == "w3m" ]] && display_image
fi fi
# Re-enable line wrap # Re-enable line wrap