#! /bin/sh
#This script makes derivatives for all tifs (caps or lower case) in a directory. 
#You should cd to the directory you want to run it on and run it from there. 

#If you want to run the script on a single, predetermined directory,
#uncomment the following 2 lines.

#cd /ndlpcoop/mtfxtx/txs/s00017
#print "Derivatives for $(pwd)"

#######################################################
#this next part is used to run the script on subdirectories
#(i.e., run it on everything in a convenience group)

#pwd | read cur_dir      #determine the directory where tif2gif_res was started

#for path in $(find . -type d 2>/dev/null)
# do
#  cd ${cur_dir}/${path} 2>/dev/null
#  print "now working in path: ${cur_dir}/${path}\n"
#    for file in $(find . -name *\.tif 2>/dev/null)
#######################################################


  for file in $(ls *\.tif 2>/dev/null)
   do
    #determine the resolution
    print "\nDetermining the resolution for ${file}"
    alchemy -x0 ${file} | sed -n 2p | cut -d":" -f2 | sed -e "s/ //g" | read fileresolution
    echo ${fileresolution} | cut -d"x" -f1 | read xres #determines x resolution
    echo ${fileresolution} | cut -d"x" -f2 | read yres #determines y resolution

    
    #determine the bit depth so you can test for color
    print "\nDetermining the bit depth for ${file}\n"
    alchemy -x0 ${file} | sed -n 3p | cut -d":" -f2 | sed -e "s/ //g" | read filecolor 2>/dev/null
        

#Test if file is landscape, and then make landscape derivatives

  if test ${xres} -ge ${yres} #Is X axis greater than or equal to Y
             then
                if test ${filecolor} = "TrueColour(24bits)" #Is file True Color (24 bit)
                   then
                       print "\ncolor landscape derivatives for ${file}"
		       alchemy ${file} -c256 -g1 -o -Xd150 -+
                fi
                
  fi

#Test if file is portrait, and then make portrait derivatives

  if test ${yres} -gt ${xres} #Is Y axis greater than or equal to X
             then
                if test ${filecolor} = "TrueColour(24bits)" #Is file True Color (24 bit)
                   then
                       print "\ncolor portrait derivatives for ${file}"
		       alchemy ${file} -c256 -g1 -o -Yd150 -+
               fi 
  fi
   

 done     #end of for loop for listing .tif files.
 
 #Make it work on .TIF files
 
   for file in $(ls *\.TIF 2>/dev/null)
    do
     #determine the resolution
     print "\nDetermining the resolution for ${file}"
     alchemy -x0 ${file} | sed -n 2p | cut -d":" -f2 | sed -e "s/ //g" | read fileresolution
     echo ${fileresolution} | cut -d"x" -f1 | read xres #determines x resolution
     echo ${fileresolution} | cut -d"x" -f2 | read yres #determines y resolution
 
     
     #determine the bit depth so you can test for color
     print "\nDetermining the bit depth for ${file}\n"
     alchemy -x0 ${file} | sed -n 3p | cut -d":" -f2 | sed -e "s/ //g" | read filecolor 2>/dev/null
         
 
 #Test if file is landscape, and then make landscape derivatives
 
   if test ${xres} -ge ${yres} #Is X axis greater than or equal to Y
              then
                 if test ${filecolor} = "TrueColour(24bits)" #Is file True Color (24 bit)
                    then
                        print "\ncolor landscape derivatives for ${file}"
 		       alchemy ${file} -c128 -g1 -o -Xd150 -+
                 fi
                 
   fi
 
 #Test if file is portrait, and then make portrait derivatives
 
   if test ${yres} -gt ${xres} #Is Y axis greater than or equal to X
              then
                 if test ${filecolor} = "TrueColour(24bits)" #Is file True Color (24 bit)
                    then
                       print "\ncolor portrait derivatives for ${file}"
 		       alchemy ${file} -c128 -g1 -o -Yd150 -+
                 fi
                 
   fi   
##########################################################
# The three lines that follow are for files with feature codes
#    echo "${file}" | cut -d"." -f1 | read filebase
#    echo "${file}" | cut -d"." -f1 | tr 'a' 'q' | read newfilebase

#    mv ${filebase}.gif ${newfilebase}.gif
#    print "Renamed ${filebase}.gif to ${newfilebase}.gif\n"

#########################################################

 done     #end of for loop for listing .tif files.

#uncomment this next line if running on convenience groups (see above)
#done      #end of for loop for finding directories