Add preview and landscape rotations

scan-dialog

@@ -1,8 +1,11 @@
 #!/bin/env bash
 
 export GDK_BACKEND=x11
-export SANE_DEFAULT_DEVICE='epsonds:libusb:001:006' # Specify device to avoid startup delays and scanning slowness.
+export SANE_DEFAULT_DEVICE='epsonds:libusb:001:005'
+# Specify device to avoid startup delays and scanning slowness.
+# scanimage --list-devices
 
+# See if file exists, add a number to name if needed.
 function check_filename {
   path=$1
   folder=$(dirname "$path")
@@ -21,21 +24,33 @@ function check_filename {
 }
 export -f check_filename # Make available to run_scan's command substitution
 
-# positional arguments: 1-folder 2-prefix 3-format 4-papersize 5-resolution 6-colormode
+# Run scanner. arguments: 1-folder 2-prefix 3-format 4-papersize 5-resolution 6-colormode
 function run_scan {
 
   # Paper size.
+  landscape=false
   case $4 in
   A4)
     x=210
     y=297
     ;;
+  A4R)
+    x=210
+    y=297
+    landscape=true
+    ;;
   A5)
     x=148
     y=210
     ;;
   A5R)
-    x=210 # currently removed A5R because sane epson backend throws an out of memory error.
+    if [[ $5 == "150" ]] then
+      # Force A4 instead, and cut later.
+      # Sane epson backend throws an out of memory error at ~A5R 150DPI.
+      x=210
+      y=297
+    fi
+    x=210
     y=148
     ;;
   esac
@@ -47,15 +62,17 @@ function run_scan {
   tempname="./temp-$(date +%s).png"
   scanimage --mode=$6 --resolution=$5 -x $x -y $y --format=png --output-file=$tempname | \
   yad --progress --text="Scanning to PNG..." --width=300 --no-buttons --auto-close
+  if [[ $landscape == true ]] then
+    convert $tempname -rotate 90 $tempname
+  fi
 
   case $3 in
     png)
-      mv $tempname $filename
+      cp $tempname $filename
       ;;
     jpg)
       convert -quality 85 $tempname $filename | \
       yad --progress --text="Converting to $3..." --width=300 --no-buttons --auto-close
-      rm $tempname
       ;;
     pdf)
       if [[ $6 != "Lineart" ]] then
@@ -67,28 +84,33 @@ function run_scan {
       fi
       convert $tempname $filename | \
       yad --progress --text="Converting to $3..." --width=300 --no-buttons --auto-close
-      rm $tempname
       ;;
   esac
+
+  yad --picture --title="Preview" --size=fit --width=750 --height=1000  --filename=$tempname
+  rm $tempname
 }
 export -f run_scan # Make function available to yad button command.
 
 # Display scan-dialog.
 yad --form --orient=hor --maximized --width=750 --height=250 --columns=3 \
   --title="Scanning Options" \
-  --field="Scan Folder:SFL" /mnt/public \
+  --field="Scan Folder:SFL" /mnt/public/scans \
   --field="Filename Prefix:SFL" scan \
   --field="File format:CB" jpg\!png\!pdf \
-  --field="Paper Size:CB" A4\!A5 \
-  --field="Resolution (DPI):CB" 75\!^150\!300\!600\!1200 \
+  --field="Paper Size:CB" A4\!A4R\!A5\!A5R \
+  --field="Resolution (DPI):CB" 75\!150\!^300\!600\!1200 \
+  --field="...:BTN" "" \
   --field="Scan Buttons:BTN" "" \
   --field="Colour:FBTN" 'bash -c "run_scan %1 %2 %3 %4 %5 Color"' \
   --field="Grayscale:FBTN" 'bash -c "run_scan %1 %2 %3 %4 %5 Gray"' \
   --field="B&W:FBTN" 'bash -c "run_scan %1 %2 %3 %4 %5 Lineart"' \
   --field="...:BTN" "" \
+  --field="...:BTN" "" \
   --field="Presets:BTN" "" \
   --field="Art (Colour PNG):FBTN" 'bash -c "run_scan %1 art png %4 %5 Color"' \
   --field="Art (Colour JPG):FBTN" 'bash -c "run_scan %1 art jpg %4 %5 Color"' \
+  --field="Doc (Colour PDF):FBTN" 'bash -c "run_scan %1 doc pdf %4 %5 Color"' \
   --field="Doc (Gray PDF):FBTN" 'bash -c "run_scan %1 doc pdf %4 %5 Gray"' \
   --field="Doc (B&W PDF):FBTN" 'bash -c "run_scan %1 doc pdf %4 %5 Lineart"' \
   --no-buttons --buttons-layout=center