#! /bin/csh -f
# Last edited on 2004-01-06 00:48:49 by stolfi

set cmd = "$0"; set cmd = "${cmd:t}"
set usage = "${cmd} [-export EXDIR] [-in DIR] NAME STATE LABEL TXUREFILE RAYOPTIONS"

set runargs = "$*"

echo '====================================================================='
echo '=== '"${cmd} ${runargs}"

unset export
unset dir

while ( ( $#argv > 0 ) && ( "x$1" =~ x-* ) )
  if ( ( $#argv >= 2 ) && ( "x$1" == "x-export" ) ) then
    set export = "$2"; shift; shift
  else if ( ( $#argv >= 2 ) && ( "x$1" == "x-in" ) ) then
    set dir = "$2"; shift; shift
  else
    echo "usage: ${usage}" ; exit 1
  endif
end

if ( $#argv < 4 ) then
  echo ${usage}; exit 1
endif

set name      = "$1" ; shift
set state     = "$1" ; shift
set label     = "$1" ; shift
set txurefile = "$1" ; shift

set tmp = "/tmp/$$-${name}.ppm"
set toolbin = "${STOLFIHOME}/posters/tools"

# Convert the texture file to PPM format, with unit gamma.
/bin/rm -f ${tmp}
if ( "x${txurefile:e}" == "xgif" ) then
  cat ${txurefile} \
  | giftopnm \
  | pnmgamma 0.50 \
  | pnmdepth 255 \
  > ${tmp}
else if ( "x${txurefile:e}" =~ xp[pgb]m ) then
  cat ${txurefile} \
  | pnmdepth 255 \
  > ${tmp}
else 
  echo "${txurefile:e}: unrecognized image type"; exit 1
endif

set povfile = "button-${state}.pov"

# Make sure that ${dir} exists and contains the required files:
if ( ! $?{dir} ) then
  # Create a new dated directory, copy important files into it:
  set dir = `yy-mm-dd-hhmmss`
  mkdir ${dir}
  cp -p button-${state}.pov ${dir}/
  cp -p button-${state}.sizes ${dir}/
else
  if ( ! ( -r ${povfile} ) ) then
endif

# Create the parameter files 
set parmfile = "button-parameters.inc"
set labelfile = "button-label-${label}.inc"

/bin/rm -f ${dir}/${parmfile}
echo "#declare button_texture_file  = "'"'"${tmp}"'"' >> ${dir}/${parmfile}
if ( -r ${labelfile} ) then
  echo "#declare button_label_file = "'"'"${labelfile}"'"' >> ${dir}/${parmfile}
else
  echo "#declare button_label_file = "'"'"button-label-none.inc"'"' >> ${dir}/${parmfile}
endif

# echo "${name} ${label} ${txurefile} $*" > button-in.comments
# run-povray -good $* button-in.pov

# echo "${name} ${label} ${txurefile} $*" > button-pair.comments
# run-povray -good $* button-pair.pov

echo "${runargs}" > ${dir}/button-out.comments
/bin/rm -f .last
${toolbin}/run-povray-png -in ${dir} $* button-out.pov

if ( $?export ) then
  if ( -r .last ) then
    set dir = "`cat .last`"
    set expfile = "${export}/flag-${name}-045x033.png"
    echo "exporting ${dir}/p.png to ${expfile}"
    cp -p ${dir}/p.png ${expfile}
  endif
endif