From 00780218bd1380c1677bc458a11f1fd48b968536 Mon Sep 17 00:00:00 2001
From: ItsDrike <itsdrikeofficial@gmail.com>
Date: Tue, 17 Aug 2021 03:51:45 +0200
Subject: [PATCH] Add ability to use pixterm for img previews

---
 home/.config/lf/draw_img.sh  | 26 ++++++++++++++++++--------
 home/.config/lf/previewer.sh | 13 ++++++++++---
 2 files changed, 28 insertions(+), 11 deletions(-)

diff --git a/home/.config/lf/draw_img.sh b/home/.config/lf/draw_img.sh
index e735652..1547ca0 100755
--- a/home/.config/lf/draw_img.sh
+++ b/home/.config/lf/draw_img.sh
@@ -1,11 +1,21 @@
 #!/bin/sh
 
-readonly PREVIEW_ID="preview"
-
-printf '{"action": "add", "identifier": "%s", "x": %d, "y": %d, "width": %d, "height": %d, "scaler": "contain", "scaling_position_x": 0.5, "scaling_position_y": 0.5, "path": "%s"}\n' \
-    "$PREVIEW_ID" "$2" "$3" "$4" "$5" "$1" > "$FIFO_UEBERZUG"
-
-#declare -p -A cmd=([action]=add [identifier]="$PREVIEW_ID" \
-#   [x]="$2" [y]="$3" [max_width]="$4" [max_height]="$5" \
-#   [path]="$1") > "$FIFO_UEBERZUG"
+path="$1"
+x="$2"
+y="$3"
+width="$4"
+height="$5"
+PREVIEW_ID="preview"
 
+if [ -n "$FIFO_UEBERZUG" ]; then
+    printf '{"action": "add", "identifier": "%s", "x": %d, "y": %d, "width": %d, "height": %d, "scaler": "contain", "scaling_position_x": 0.5, "scaling_position_y": 0.5, "path": "%s"}\n' \
+        "$PREVIEW_ID" "$x" "$y" "$width" "$height" "$path" > "$FIFO_UEBERZUG"
+else
+    # Ueberzug isn't avialable, try to use pixterm
+    if command -v pixterm > /dev/null; then
+        pixterm -s 2 -tr "$x" -tc "$width" "$path"
+    else
+        >&2 echo "ueberzug not running, pixterm fallback not found!"
+        exit 1
+    fi
+fi
diff --git a/home/.config/lf/previewer.sh b/home/.config/lf/previewer.sh
index d945a44..962ff14 100755
--- a/home/.config/lf/previewer.sh
+++ b/home/.config/lf/previewer.sh
@@ -1,9 +1,15 @@
 #!/bin/sh
 # This script handles showing file-previews within lf.
+
 # It can also show image previews using ueberzug, however
-# that requires lf to be start with a script that also starts
+# that requires lf to be started with a script that also starts
 # ueberzug alongside of it.
 # (In my dotfiles, this script is in '~/.local/bin/scripts/lfu')
+# Alternatively, we could also handle ANSI previews with pixterms
+# this will be in a pretty low quiality, but it will work without
+# ueberzug. To enable this, change PIXTERM_ENABLED to 1.
+# if both ueberzug and pixterm are enabled, ueberzug takes precedence.
+PIXTERM_ENABLED=1
 
 run_cmd() {
     # Try to run given command, if it is installed.
@@ -77,7 +83,8 @@ media_handle() {
     file="$1"
     shift
 
-    # Set ENABLED=1 if ueberzug is enabled
+    # Set ENABLED=1 if ueberzug or pixterm is enabled
+    command -v pixterm > /dev/null && [ "$PIXTERM_ENABLED" = 1 ] && ENABLED=1
     [ -n "$FIFO_UEBERZUG" ] && [ -f "$draw_script" ] && ENABLED=1
 
     case "$file" in
@@ -85,7 +92,7 @@ media_handle() {
             if [ -n "$ENABLED" ]; then
                 draw_image $draw_script "$file"
             else
-                echo "@@PREVIEW FALLBACK: Using mediainfo, ueberzug isn't aviable."
+                echo "@@PREVIEW FALLBACK: Using mediainfo, ueberzug isn't available."
                 run_cmd mediainfo "$file"
             fi
             ;;