Merge pull request #7 from ArkieCoder/kittysupport

more kitty support

Author: ArkieCoder

install.sh

@@ -4,7 +4,7 @@
 # Detects dependencies and installs the Ruby Primer app.
 
 REQUIRED_RUBY_VERSION="3.2"
-REQUIRED_UTILITIES=("pandoc" "xelatex" "convert")
+REQUIRED_UTILITIES=("pandoc" "xelatex" "convert" "viu")
 FONT_NAME="IBM Plex Serif Light"
 
 # Colors for output
@@ -112,19 +112,19 @@ if [ ${#missing_utils[@]} -ne 0 ]; then
     echo -e "${YELLOW}Missing utilities: ${missing_utils[*]}${NC}"
     case "$PACKAGE_MANAGER" in
         brew)
-            echo "Install with: brew install pandoc mactex imagemagick"
+            echo "Install with: brew install pandoc mactex imagemagick viu"
             echo "Note: Ensure IBM Plex Serif Light font is available (included in mactex or install separately)."
             ;;
         apt)
-            echo "Install with: sudo apt update && sudo apt install pandoc texlive-latex-base texlive-fonts-recommended texlive-xelatex imagemagick"
+            echo "Install with: sudo apt update && sudo apt install pandoc texlive-latex-base texlive-fonts-recommended imagemagick && cargo install viu"
             echo "Note: Ensure IBM Plex Serif Light font is installed (may require additional font packages)."
             ;;
         yum)
-            echo "Install with: sudo yum install pandoc texlive texlive-fonts ImageMagick"
+            echo "Install with: sudo yum install pandoc texlive texlive-fonts ImageMagick && cargo install viu"
             echo "Note: Ensure IBM Plex Serif Light font is installed."
             ;;
         *)
-            echo "Please install pandoc, xelatex, and imagemagick manually."
+            echo "Please install pandoc, xelatex, imagemagick, and viu manually (viu via 'cargo install viu')."
             echo "Note: Ensure IBM Plex Serif Light font is available for xelatex."
             ;;
     esac

lib/stringformat.rb

@@ -50,16 +50,23 @@ def iterm2?
       if kitty?
         # Convert PDF to PNG for Kitty
         png_file = tmp_file.path.sub('.md', '.png')
-        system("convert -density 600 #{pdf_file} #{png_file} >/dev/null 2>&1")
+        system("convert -density 130 #{pdf_file} #{png_file} >/dev/null 2>&1")
         if File.exist?(png_file)
-          png_data = File.read(png_file)
-          base64_data = Base64.strict_encode64(png_data)
-          # Clean up
-          tmp_file.unlink
-          File.unlink(pdf_file)
-          File.unlink(png_file)
-          # Return Kitty inline image sequence
-          "\e_Gf=100,a=T,t=d;#{base64_data}\e\\"
+          width = (cols * 0.75).to_i
+          viu_output = `viu -w #{width} #{png_file} 2>/dev/null`
+          if $?.success? && !viu_output.empty?
+            # Clean up
+            tmp_file.unlink
+            File.unlink(pdf_file)
+            File.unlink(png_file)
+            viu_output
+          else
+            # Fallback if viu fails
+            tmp_file.unlink
+            File.unlink(pdf_file)
+            File.unlink(png_file)
+            self
+          end
         else
           # Fallback if PNG conversion fails
           tmp_file.unlink