Setup screens

refreshVP.sh

@@ -16,15 +16,16 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-# Get rights to access display
-DEBUG=false
+timeout=10
+DEBUG=true
 log(){
     if $DEBUG
     then
-        echo "$@" >> /var/log/vp.log
+        echo "$@" | tee /var/log/vp.log
     fi
 }
 log  "starting VP $(date)"
+# Get rights to access display
 user=$(who | grep -v "root" | head -n 1 | cut -d ' ' -f 1)
 if [ ! -z "$user" ]
 then
@@ -63,7 +64,7 @@ fi
 log  "MAIN_SCREEN '$MAIN_SCREEN'"
 
 screens=$(xrandr | grep " connected" | cut -f 1 -d ' ' \
-    | sed -e 's/ /\n/g' | grep -v $MAIN_SCREEN)
+    | sed -e 's/ /\n/g' | grep -v "\<$MAIN_SCREEN\>")
 
 log  "SCREENS '$screens'"
 if [ -z "$screens$MAIN_SCREEN" ]
@@ -72,76 +73,139 @@ then
     exit
 fi
 
-# Auto detect best resolution
-for m in $(xrandr | awk -v pattern="^$MAIN_SCREEN" '/^.* connected/{IN=0} $0 ~ pattern {IN=1} /^ /{if(IN==1){print $1}}')
-do
-    # echo "testing mode $m"
-    OTHERS=$(xrandr | awk -v pattern="^$MAIN_SCREEN" '/^.* connected/{IN=1} $0 ~ pattern {IN=0} {if(IN==1){print $1}}')
-    if [ -z "$OTHERS" ]
-    then
-        # one screen look for best common resolution
-        mode=$(max_res $m $mode)
-    else
-        # Several screen look for best common resolution
-        for line in $OTHERS
-        do
-            # echo "line $line"
-            if [[ $line =~ [0-9]* ]]
-            then
-                # New mode
-                if [ "$line" == "$m" ]
-                then
-                    found=1
-                fi
-            else
-                # New screen
-                if [ "$found" == 0 ]
+clone(){
+    # Auto detect best resolution
+    for m in $(xrandr | awk -v pattern="^$MAIN_SCREEN" '/^.* connected/{IN=0} $0 ~ pattern {IN=1} /^ /{if(IN==1){print $1}}')
+    do
+        # echo "testing mode $m"
+        OTHERS=$(xrandr | awk -v pattern="^$MAIN_SCREEN" '/^.* connected/{IN=1} $0 ~ pattern {IN=0} {if(IN==1){print $1}}')
+        if [ -z "$OTHERS" ]
+        then
+            # one screen look for best common resolution
+            mode=$(max_res $m $mode)
+        else
+            # Several screen look for best common resolution
+            for line in $OTHERS
+            do
+                # echo "line $line"
+                if [[ $line =~ [0-9]* ]]
                 then
-                    break
+                    # New mode
+                    if [ "$line" == "$m" ]
+                    then
+                        found=1
+                    fi
+                else
+                    # New screen
+                    if [ "$found" == 0 ]
+                    then
+                        break
+                    fi
+                    found=0
                 fi
-                found=0
+                # echo "Found ? $found"
+            done
+            if [ "$found" == 1 ]
+            then
+                mode="$m"
+                break
             fi
-            # echo "Found ? $found"
-        done
-        if [ "$found" == 1 ]
-        then
-            mode="$m"
-            break
         fi
-    fi
-done
-# echo "mode $mode"
+    done
+    # echo "mode $mode"
+    
+    # Primary screen
+    cmd="xrandr --output $MAIN_SCREEN --auto --mode $mode --rotate normal --primary"
+    log  "command $cmd"
+    
+    # Add all connected as copy
+    prev_s=$MAIN_SCREEN
+    for s in $(echo -e $screens)
+    do
+        cmd="$cmd --output $s --auto --mode $mode --same-as $prev_s --rotate normal"
+        prev_s="$s"
+    done
+    log  "command after all outputs $cmd"
+    
+    # Disable all disconnected screens
+    screens=$(xrandr | grep " disconnected" | cut -f 1 -d ' ' )
+    for s in $(echo -e $screens)
+    do
+    	cmd="$cmd --output $s --off"
+    done
+    log  "command after all offs $cmd"
+    
+    run_xrandr_cmd $cmd
+}
 
-# Primary screen
-cmd="xrandr --output $MAIN_SCREEN --auto --mode $mode --rotate normal --primary"
-log  "command $cmd"
+extend(){
+    log "I should extend screens on $1"
+    case $1 in
+        "gauche")
+            placement="--left-of"
+            ;;
+        "droite")
+            placement="--right-of"
+            ;;
+        "haut")
+            placement="--above"
+            ;;
+        "bas")
+            placement="--below"
+            ;;
+    esac
+    cmd="xrandr --output $MAIN_SCREEN --primary --auto"
+    log $cmd
+    for s in $screens
+    do
+        cmd="$cmd --output $s $placement $MAIN_SCREEN --auto" 
+        log $cmd
+    done
+    run_xrandr_cmd $cmd
+}
 
-# Add all connected as copy
-prev_s=$MAIN_SCREEN
-for s in $(echo -e $screens)
-do
-    cmd="$cmd --output $s --auto --mode $mode --same-as $prev_s --rotate normal"
-    prev_s="$s"
-done
-log  "command after all outputs $cmd"
+run_xrandr_cmd(){
+    # Actually do stuff
+    old_cmd=$(cat /tmp/vp)
+    new_cmd="$@"
+    timeout
+    echo $new_cmd > /tmp/vp
+    $new_cmd
+    log  "Runned $new_cmd"
+    zenity --question --title "Configuration des écrans" \
+        --text "La configuration des écrans vous convient-elle ?" \
+        --timeout=$timeout
+    if [ $? != 0 ]
+    then
+        log "Restoring old command : $old_cmd"
+        $old_cmd
+    fi
+    log "exiting on $(date)"
+}
 
-# Disable all disconnected screens
-screens=$(xrandr | grep " disconnected" | cut -f 1 -d ' ' )
-for s in $(echo -e $screens)
-do
-	cmd="$cmd --output $s --off"
-done
-log  "command after all offs $cmd"
+choice=$(zenity --entry --title "Écran connecté" \
+    --text "Selection du mode d'affichage" \
+    --entry-text "Clone" 'Écrans étendus à droite' 'Écrans étendus à gauche' \
+    'Écrans étendus en haut' 'Écrans étendus en bas' \
+    --timeout $timeout)
+code=$?
+
+log "Choice '$choice' / code $code"
 
-log  "old cmd '$(cat /tmp/vp)'"
-log  "new cmd '$cmd'"
-if [ "$cmd" == "$(cat /tmp/vp)" ]
+if [ -z "$choice" ]
 then
-	log  "No cmd change, exiting on $(date)"
-	exit
+    if [ "$code" -eq 1 ]
+    then
+        # give up
+        return
+    else
+        # timeout
+        log "timeout"
+        clone
+    fi
+elif [ "$choice" == "Clone" ]
+then
+    clone
+else
+    extend $(echo $choice | cut -d ' ' -f 4)
 fi
-echo $cmd > /tmp/vp
-
-# Actually do stuff
-$cmd
-log  "Runned $cmd, exiting on $(date)"