#!/bin/bash
# frameit - script to make it easy to add a graphical frame around
#   an image file, using ImageMagick

proc usage
{
cat << """
Usage: $[basename $0] -b border -c color imagename
   or  $[basename $0] -f frame  -m color imagename

In the first case, specify border parameters as size x size or percentage x percentage
followed by the color desired for the border (RGB or color name).

In the second instance, specify the frame size and offset, followed by the
matte color.

EXAMPLE USAGE:
   $[basename $0] -b 15x15 -c black imagename
   $[basename $0] -b 10%x10% -c grey imagename

   $[basename $0] -f 10x10+10+0 imagename
   $[basename $0] -f 6x6+2+2 -m tomato imagename
"""
exit 1
}

#### MAIN CODE BLOCK

# Most of this is parsing starting arguments!

while getopts "b:c:f:m:" opt {
  match $opt {
   with b  setglobal border = $OPTARG;                
   with c  setglobal bordercolor = $OPTARG;           
   with f  setglobal frame = $OPTARG;                 
   with m  setglobal mattecolor = $OPTARG;            
   with ?  usage;                           
  }
}
shift $shExpr('$OPTIND - 1')  # eat all the parsed arguments

if test $Argc -eq 0  {     # no images specified?
  usage
}

# did we specify a border and a frame?

if test ! -z $bordercolor -a ! -z $mattecolor  {
  echo "$[basename $0]: You can't specify a color and matte color simultaneously." > !2
  exit 1
}

if test ! -z $frame -a ! -z $border  {
  echo "$[basename $0]: You can't specify a border and frame simultaneously." > !2
  exit 1
}

if test ! -z $border  {
  setglobal args = ""-bordercolor $bordercolor -border $border""
} else {
  setglobal args = ""-mattecolor $mattecolor -frame $frame""
}for name in @Argv {
  setglobal suffix = $[echo $name | rev | cut -d. -f1 | rev]
  setglobal prefix = $[echo $name | rev | cut -d. -f2- | rev]
  setglobal newname = ""$prefix+f.$suffix""
  echo "Adding a frame to image $name, saving as $newname"
  convert $name $args $newname
}

exit 0