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Chip 2007 January, February, March & April
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Chip-Cover-CD-2007-02.iso
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2006-11-29
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1KB
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76 lines
#!/bin/sh
i=-1
#======================================
# save options and values in arrays
#--------------------------------------
for param;do
echo $param | grep -q ^-
if [ $? = 0 ];then
i=$((i + 1))
option[$i]=$param
else
values[$i]=$param
fi
done
i=0
#======================================
# check options
#--------------------------------------
for opt in ${option[@]};do
value=${values[$i]}
case $opt in
-xsize)
xsize=$value
;;
-ysize)
ysize=$value
;;
-image)
image=$value
image=`echo $image | cut -f1 -d.`
;;
-display)
disp=$value
;;
*)
;;
esac
i=$((i + 1))
done
#======================================
# validate options
#--------------------------------------
if [ -z "$disp" ];then
exit 1
fi
if [ -z "$xsize" ];then
exit 1
fi
if [ -z "$ysize" ];then
exit 1
fi
if [ -z "$image" ];then
exit 1
fi
#======================================
# scale image
#--------------------------------------
/usr/bin/pngtopnm $image.png |\
/usr/bin/pnmscale -xsize=$xsize -ysize=$ysize |\
/usr/bin/pnmtopng \
> $image.scaled.png
#======================================
# display image
#--------------------------------------
which fvwm-root >/dev/null 2>&1
if [ $? = 0 ];then
DISPLAY=$disp fvwm-root $image.scaled.png
else
DISPLAY=$disp display -window root $image.scaled.png
fi
rm -f $image.scaled.png