Image: Rewrite image backends
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Dylan Araps
parent
1444bb10d9
commit
1c2569327f
2 changed files with 78 additions and 83 deletions
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@ -1941,54 +1941,45 @@ get_cols() {
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# IMAGES
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get_image_backend() {
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# This function determines which image backend to use
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# by checking for programs and etc.
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image_backend() {
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if [[ ! "${image_backend}" =~ (off|ascii) ]]; then
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# Fallback to ascii mode if imagemagick isn't installed.
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type -p convert >/dev/null 2>&1 || image_backend="ascii"
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# If the image source isn't "ascii" or "off".
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if [[ ! "${image_source}" =~ ^(off|ascii)$ ]]; then
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# If X isn't running force ascii mode here.
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[[ -z "$DISPLAY" ]] && image_source="ascii"
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# Fallback to ascii mode if imagemagick isn't installed.
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type -p convert >/dev/null 2>&1 || image_source="ascii"
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fi
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# Get the image program.
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get_image_program
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image_backend="off"
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# If image source is ascii fallback to ascii.
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if [[ "$image_source" == "ascii" ]]; then
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to_ascii "Image: \$image_source set to 'ascii', falling back to ascii mode."
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err "Image: Change \$image_source to another value to use image mode."
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case "${image_backend:-off}" in
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"ascii") get_ascii ;;
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"off") image_backend="off" ;;
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"iterm2" | "w3m-img" | "tycat")
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get_image_source
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if [[ ! -f "$image" ]]; then
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to_ascii "Image: \'$image_source\' doesn't exist, falling back to ascii mode."
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return
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fi
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case "${image_backend:=image}" in
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"image")
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case "$image_source" in
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"wall"*) get_wallpaper 2>/dev/null ;;
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"off") image_backend="off"; return ;;
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*)
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if [[ -d "$image_source" ]]; then
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files=("${image_source%/}"/*.{png,jpg,jpeg})
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printf -v image "%s" "${files[RANDOM % (${#files[@]} - 1)]}"
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else
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image="$image_source"
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fi
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;;
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esac
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get_image_program
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# Fallback to ascii mode if image isn't a file.
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if [[ ! -f "$image" ]]; then
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to_ascii "Image: '$image' doesn't exist, falling back to ascii mode."
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if type -p "$image_program" >/dev/null 2>&1; then
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err "Image: Drawing images using $image_program"
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else
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to_ascii "Image: Failed to find image program. ($image_program)"
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err "Image: Falling back to ascii mode."
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return
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fi
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get_term_size
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# Fallback to ascii mode if terminal size wasn't found.
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if [[ -z "$term_width" ]] || ((term_width == 0)); then
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if [[ "$term_width" ]] && ((term_width >= 1)); then
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clear
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zws=" "
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else
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to_ascii "Image: Failed to find terminal window size"
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err "Image: Check the 'Images in the terminal' wiki page for more info"
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return
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@ -1996,16 +1987,18 @@ get_image_backend() {
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get_image_size
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make_thumbnail
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# If the backend is still set to "image" after
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# make_thumbnail(), then display the image.
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[[ "$image_backend" == "image" ]] && display_image
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display_image
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;;
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"ascii") get_ascii 2>/dev/null ;;
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*)
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image_backend="off"
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err "Image: Unknown image backend specified. ($image_backend)"
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err "Image: Valid backends are: 'iterm2', 'w3m-img'. 'tycat', 'ascii', 'off'"
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err "Image: Falling back to off mode."
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;;
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esac
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# Set cursor position next to ascii art.
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# Set cursor position next image/ascii.
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[[ "$image_backend" != "off" ]] && printf "%b" "\033[${lines:-0}A\033[9999999D"
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}
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@ -2066,39 +2059,22 @@ get_ascii() {
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export LC_ALL=C
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}
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get_image_program() {
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if [[ -n "$ITERM_PROFILE" ]]; then
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image_program="iterm2"
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get_image_source() {
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case "$image_source" in
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"wall"*)
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get_wallpaper 2>/dev/null
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;;
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elif [[ "$(tycat 2>/dev/null)" ]]; then
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image_program="tycat"
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*)
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if [[ -d "$image_source" ]]; then
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files=("${image_source%/}"/*.{png,jpg,jpeg,jpe,gif})
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printf -v image "%s" "${files[RANDOM % (${#files[@]} - 1)]}"
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else
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image_program="w3m"
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get_w3m_img_path
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fi
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}
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get_w3m_img_path() {
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if [[ -x "$w3m_img_path" ]]; then
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return
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elif [[ -x "/usr/lib/w3m/w3mimgdisplay" ]]; then
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w3m_img_path="/usr/lib/w3m/w3mimgdisplay"
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elif [[ -x "/usr/libexec/w3m/w3mimgdisplay" ]]; then
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w3m_img_path="/usr/libexec/w3m/w3mimgdisplay"
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elif [[ -x "/usr/lib64/w3m/w3mimgdisplay" ]]; then
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w3m_img_path="/usr/lib64/w3m/w3mimgdisplay"
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elif [[ -x "/usr/libexec64/w3m/w3mimgdisplay" ]]; then
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w3m_img_path="/usr/libexec64/w3m/w3mimgdisplay"
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else
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image_backend="ascii"
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err "Image: w3m-img wasn't found on your system, falling back to ascii mode."
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image="$image_source"
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fi
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;;
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esac
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}
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get_wallpaper() {
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@ -2162,6 +2138,33 @@ get_wallpaper() {
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[[ "${image/*\./}" == "xml" ]] && image=""
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}
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get_image_program() {
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if [[ -n "$ITERM_PROFILE" ]]; then
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image_program="iterm2"
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elif [[ "$(tycat 2>/dev/null)" ]]; then
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image_program="tycat"
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else
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# Find w3m-img path.
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if [[ -x "$w3m_img_path" ]]; then
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image_program="$w3m_img_path"
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elif [[ -x "/usr/lib/w3m/w3mimgdisplay" ]]; then
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image_program="/usr/lib/w3m/w3mimgdisplay"
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elif [[ -x "/usr/libexec/w3m/w3mimgdisplay" ]]; then
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image_program="/usr/libexec/w3m/w3mimgdisplay"
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elif [[ -x "/usr/lib64/w3m/w3mimgdisplay" ]]; then
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image_program="/usr/lib64/w3m/w3mimgdisplay"
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elif [[ -x "/usr/libexec64/w3m/w3mimgdisplay" ]]; then
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image_program="/usr/libexec64/w3m/w3mimgdisplay"
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fi
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fi
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}
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get_term_size() {
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# This functions gets the current window size in
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# pixels.
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@ -2230,12 +2233,6 @@ get_term_size() {
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term_width=0
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fi
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fi
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# If the terminal size was found correctly.
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if [[ "$term_width" ]] && ((term_width >= 1)); then
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clear
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zws=" "
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fi
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}
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get_image_size() {
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@ -2358,7 +2355,7 @@ make_thumbnail() {
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display_image() {
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case "$image_program" in
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"w3m")
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*"w3m"*)
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# Add a tiny delay to fix issues with images not
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# appearing in specific terminal emulators.
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sleep 0.05
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@ -2383,9 +2380,6 @@ to_ascii() {
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# Print the ascii art.
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get_ascii 2>/dev/null
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# Move cursor next to ascii art.
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printf "%b" "\033[${lines:-0}A\033[9999999D"
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# Log the error.
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err "$1"
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}
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@ -3404,7 +3398,7 @@ get_term_padding() {
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dynamic_prompt() {
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case "$image_backend" in
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"image")
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"iterm2" | "w3m-img" | "tycat")
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get_term_padding 2>/dev/null
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# Calculate image height in terminal cells.
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@ -4001,7 +3995,8 @@ main() {
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printf "\033[?25l\033[?7l"
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fi
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get_image_backend
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# get_image_backend
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image_backend
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old_functions
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get_cache_dir
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print_info 2>/dev/null
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