#!/bin/bash
 
 #- Alle jpgs eines Verzeichnisbaums nach SW wandeln. -#
 
 . output_format
 . dir_exists
 . first_file_detect
 . checkfor
 . basedir_name_basen
 . scan_progname_list
 . replace_signs
 
 
 clear;
 #-- Eingaben testen --
 dir_exists "${1}" "Anwendung: ${red}`replace_signs "${0}"`${ende1} ${green}[dirname]${ende1}
 
 ${withe_normal}01.) Zu allererst wird das Bild in seine Farben zerlegt und in ein Bild gepackt.${ende1}
 ${withe_normal}02.) Dann waehlt man die am Besten passende Farbe. ${ende1}
 ${withe_normal}03.) Zum Schluss werden alle Bilder im Verzeichnisbaum in SW umgerechnet. ${ende1}";
 
 checkfor "${imgview_app}" mogrify;
 scan_progname_list img_view_app
 imgview_app="${progname}";
 
 first_file_detect "${1}";
 basedir_name_basen "${datei}";
 echo  "${datei}";
 
 exit
 
 
 
 
 red="red"
 green="green"
 blue="blue"
 cyan="cyan"
 magenta="magenta"
 yellow="yellow"
 
 preview_file="_seperate.jpg";
 quell_extension="[jJ][pP][gG]";
 
 # -- Menuebreite --
 export COLUMNS=2;
 
 
 seperate_preview(){
 convert -gravity South -pointsize 15\
    "${1}" -resize 700x700 -write mpr:orig \
 		-background white -splice 0x18 \
 		-draw "text 0,0 'Original'" \
    	\( mpr:orig -channel "${3}" -separate \
 		-background "${3}" -splice 0x18 \
 		-draw "text 0,0 '${3} Channel'" \) \
    	+append \
          	\( \
         	\( mpr:orig -channel "${4}" -separate  \
 			-background "${4}" -splice 0x18 \
 			-draw "text 0,0 '${4} Channel'" \) \
         	\( mpr:orig -channel "${5}"  -separate  \
 			-background "${5}" -splice 0x18 \
 			-draw "text 0,0 '${5} Channel'" \) \
 	+append \) \
     	-append \
          	\( \
         	\( mpr:orig -channel "${6}" -separate  \
 			-background "${6}" -splice 0x18 \
 			-draw "text 0,0 '${6} Channel'" \) \
         	\( mpr:orig -channel "${7}"  -separate  \
 			-background "${7}" -splice 0x18 \
 			-draw "text 0,0 '${7} Channel'" \) \
 	+append \) \
     	-append \
          	\( \
         	\( mpr:orig -channel "${8}" -separate  \
 			-background "${8}" -splice 0x18 \
 			-draw "text 0,0 '${8} Channel'" \) \
  	+append \) \
   	-append \
  "${2}"
 }
 
 convert_color_sw(){
 	clear;
 	echo -e "${red_bg}Alle Bilder bearbeiten.${ende}"
 	
 	find "${1}" -type f -iname "*${3}*" | while read bild; do 
 		# in gewaehlten Kanal wandeln
 		basedir_name_basen "${bild}"
 		convert "$bild" \( mpr:orig -channel "${2}" -separate \) "${basedir}/${basen}_${2}_sw.jpg"
 	done
 }
 
 rm_sw_files(){
 	find "${1}" -type f -iname "*${2}*" | while read bild; do 
 		rm "${bild}"
 	done
 }
 
 menue(){
 	clear;
 	echo -e "${red_bg}Farbkanal waehlen.${ende}"
 	
 	select s_file in ==Abbrechen====== ==color_red===== ==color_green=== ==color_blue==== ==color_cyan==== ==color_magenta= ==color_yellow==; do
 		case "${s_file}" in
 			 ==color_red=====)
 				convert_color_sw "${1}" "${2}" "${8}" && break
 			;;
 			 ==color_green===)
 				convert_color_sw "${1}" "${3}" "${8}" && break
 			;;
 			 ==color_blue====)
 				convert_color_sw "${1}" "${4}" "${8}" && break
 			;;
 			 ==color_cyan====)
 				convert_color_sw "${1}" "${5}" "${8}" && break
 			;;
 			 ==color_magenta=)
 				convert_color_sw "${1}" "${6}" "${8}" && break
 			;;
 			 ==color_yellow==)
 				convert_color_sw "${1}" "${7}" "${8}" && break
 			;;
 			 ==Abbrechen======)
 				clear;
 				echo -e "${red_bg}Abgebrochen${ende1}";
 				exit
 			;;
 			*)
 				exit
 		esac
 	done
 }
 
 
 
 rm_sw_files "${basedir}" "sw"
 seperate_preview "${datei}" "${basedir}/${basen}${preview_file}" "${red}" "${green}" "${blue}" "${cyan}" "${magenta}" "${yellow}"
 
 ${imgview_app} "${basedir}/${basen}${preview_file}";
 rm "${basedir}/${basen}${preview_file}";
 menue "${1}" "${red}" "${green}" "${blue}" "${cyan}" "${magenta}" "${yellow}" "${quell_extension}";
 
 ${imgview_app} "${basedir}/"*;