initial commit

buttonpressed.sh

@@ -0,0 +1,68 @@
+#!/bin/sh
+
+# daemon's name
+DAEMON=scanbd
+
+# securely create temporary file to avoid race condition attacks
+TMPFILE=`mktemp /tmp/$DAEMON.XXXXXX`
+
+# lock file
+LOCKFILE="/tmp/$DAEMON.lock"
+
+# device name
+DEVICE="$2"
+
+# destination of the final image file (modify to match your setup)
+DESTINATION="/home/manolis/Desktop/scanned_image.jpg"
+
+# remove temporary file on abort
+trap 'rm -f $TMPFILE' 0 1 15
+
+# function: create lock file with scanbuttond's PID
+mk_lock() {
+    pidof $DAEMON > $LOCKFILE
+}
+
+# function: remove temporary and lock files
+clean_up () {
+    test -e $LOCKFILE && rm -f $LOCKFILE
+    rm -f $TMPFILE
+}
+
+# function: check if lock file exists and print an error message with zenity (if it's installed)
+chk_lock() {
+    if [ -e $LOCKFILE ]; then
+        if [ -x /usr/bin/zenity ]; then
+            zenity --display :0.0 --title="Scanbuttond" --error 
+            --text="Another scanning operation is currently in progress."
+        fi
+        exit 1
+    fi
+}
+
+# function: the actual scan command (modify to match your setup)
+scan() {
+    scanimage --device-name "$DEVICE" --mode Color --resolution 300 
+            --depth 8 -x 215 -y 297 > $TMPFILE
+}
+
+case $1 in
+    1)
+       # button 1 (scan): scan the picture & save it as $DESTINATION
+       chk_lock; mk_lock; scan; convert $TMPFILE -quality 85 -quiet $DESTINATION; clean_up
+       ;;
+    2)
+       # button 2 (copy): scan the picture, convert it to postscript and print it
+       chk_lock; mk_lock; scan; convert $TMPFILE ps:- | lpr; clean_up
+       ;;
+    3)
+       # button 3 (mail): scan the picture, save it as $DESTINATION and send it as an e-mail
+       # attachment with Evolution
+       chk_lock; mk_lock; scan; convert $TMPFILE -quality 85 -quiet $DESTINATION
+       evolution --display=:0.0 "mailto:?attach=$DESTINATION"; clean_up
+       ;;
+    4)
+       # button 4 (web): unconfigured
+       echo "button 4 has been pressed on $2"
+       ;;
+esac