#!/bin/bash

###
### QUICK IMAGE VIEWER "qiv-command" file
### http://qiv.spiegl.de/
###
### This file will be launched by QIV if you push 0-9 (or any other free key)
### NEW:  Now you can use all free keys for qiv-command.
### NEW:  If you press "X" followed by any string,
###       qiv-command is called with X and this string
###
### Just put it in a directory that is in your path
###
### Note:
###  If the first line of the output is like "NEWNAME=xxxxxxx" then qiv
###  thinks that the filename of the currently displayed image has
###  changed to this new name and updates its internal filelist.
###  This is very useful when using qiv-command to rename files.

#
# some examples by Andy Spiegl <qiv.andy@spiegl.de>
# Created:     2002-05-12
# Last change: 2010-12-28
#
# more examples (renaming, jpg comments) by Clint Pachl <pachl@ecentryx.com>
#
# needs jhead to rotate JPEG without loss of Exif Jpeg headers
# jhead is:
# Program for extracting Digicam setting information from Exif Jpeg headers
# used by most Digital Cameras.  v2.6 by Matthias Wandel, Dec 26 2006
# http://www.sentex.net/~mwandel/jhead  mwandel@sentex.net

# Syntax: qiv-command [pressed_key] [image_filename_with_full_path]
pressed_key=$1  	# key(s) pressed in qiv
filename=$2         # image filename with full path

echo "You pressed the $pressed_key key while watching $filename"

case "$pressed_key" in

  0)
    # do something with the image ($2) ->
    #
    # example: copy
    # cp "$2" "/home/myfiles/download/";
    #
    # example: move
    # mv "$2" "/home/myfiles/download/";
    # echo "NEWNAME=/home/myfiles/download/$2";
    #
    # example: show EXIF Header using "exiftool" or "jhead"
    # exiftool "$filename"
    # jhead "$filename"
    # more sophisticated for better infos (adjust paths!)
#    if [ -r $HOME/local/var/exiftool.tags.for.qiv-command ]; then
#      exiftool `xargs < $HOME/local/var/exiftool.tags.for.qiv-command` "$filename" \
#       | grep -v -f $HOME/local/var/exiftool.grep-exclude-pattern.for.qiv-command
#      jhead -nofinfo "$filename" | grep -i -E '^(JPEG Quality |Caption )'
#    else
#      jhead -nofinfo "$filename"
#    fi

    echo -ne "0 was pushed.\nStart your own programs by editing the\n\"$0\" file!";
    ;;


  1|2|3|4|5)
    echo -ne "$pressed_key was pushed.\nStart your own programs by editing the\n\"$0\" file!";
    ;;

  6)
    # Modify comment header. Fire up an xterm running EDITOR to edit comment.
    #xterm -e jhead -ce "$filename"
    jhead -ce "$filename"
    ;;

  7)
    echo -ne "$pressed_key was pushed.\nStart your own programs by editing the\n\"$0\" file!";
    ;;

  8) # lossless rotation of JPG, without losing EXIF tags
    echo 2>&1 "Rotating to the left."
    jhead -cmd "jpegtran -perfect -rotate 270 -outfile &o &i" "$filename" >/dev/null
    # set timestamp of file to Date/Time when the photo was taken
    jhead -q -ft "$filename" >/dev/null
    ;;

  9) # lossless rotation of JPG, without losing EXIF tags
    echo 2>&1 "Rotating to the right."
    jhead -cmd "jpegtran -perfect -rotate 90 -outfile &o &i" "$filename" >/dev/null
    # set timestamp of file to Date/Time when the photo was taken
    jhead -q -ft "$filename" >/dev/null
    ;;

  # with "^"-prefix: forced (i.e. possibly NOT lossless) rotation
  ^8) # rotate JPG, but possibly losing quality
    echo 2>&1 "Forcing rotation to the left."
    jhead -cmd "jpegtran -rotate 270 -outfile &o &i" "$filename" >/dev/null
    # set timestamp of file to Date/Time when the photo was taken
    jhead -q -ft "$filename" >/dev/null
    ;;

  ^9) # rotate JPG, but possibly losing quality
    echo 2>&1 "Forcing rotation to the right."
    jhead -cmd "jpegtran -rotate 90 -outfile &o &i" "$filename" >/dev/null
    # set timestamp of file to Date/Time when the photo was taken
    jhead -q -ft "$filename" >/dev/null
    ;;

  ^g) # call gps2url.py to extract GPS coordinates from an image and
      # call firefox with google maps url if the GPS info exists
    gps2url.py "$filename"
    ;;

  ^*)
    # Rename image directly from qiv. The timestamp of the current image will be
    # automatically embedded in the new filename. This action is invoked by typing:
    #
    #	^<new_img_name><RETURN>
    #
    # Echoing the `NEWNAME=new_img_name` line signals qiv to update it's file list
    # with the new filename.
    img_timestamp=$(date -r `stat -f '%m' "$filename"` +'%y%m%d%H%M%S')
    new_img_name=${pressed_key#^}
    new_img_name=`echo "$new_img_name" | tr ' ' '_'`
    new_img_name=${new_img_name%.[Jj][Pp][Gg]}-${img_timestamp}.jpg

    [[ -f "$new_img_name" ]] && exit 1
    mv "$filename" "$new_img_name"
    echo "NEWNAME=$new_img_name"
    ;;

  V)
    qiv -h
    ;;

  *)
    cat <<-EOF
	Commands:
	  0 		show EXIF header
	  6 		edit JPEG comment
	  8 		lossless rotate left
	  9 		lossless rotate right
	  ^8		non-perfect rotate left  (use if '8' fails)
	  ^9		non-perfect rotate right (use if '9' fails)
	  ^STRING 	rename current file to STRING

	  Within qiv you simply press a key from 0-9 or any other unused key!
	  "$pressed_key" not defined yet.  Quitting.
	EOF
    exit 1
esac


exit 0
