more work on viewer

TODO

@@ -1,9 +1,12 @@
 ## GENERAL
 
     * viewer needs to allow toggle to scan_model (and prob. right-click on file... AI (with CNN) AI (with hog)
-        - I think go to html5 toggles for: face, distance (only shows if you toggle face on), drop-down for model (allow change to cnn and reprocess)
+        - [DONE] I think go to html5 toggles for: face, distance (only shows if you toggle face on), drop-down for model (allow change to cnn and reprocess)
-        - show matching face distance in viewer
+        - [DONE] show matching face distance in viewer
-        - might be best for AI_Model to have friendly name (slow, slower) :)
+        - [DONE] set AI model based on model used 
+        - [DONE] remember fname/face/distance toggles between images in viewer
+        - [DONE] might be best for AI_Model to have friendly name (slow, slower) :)
+        - make the form-select AI_Model actually do the change (but need more mem on mara really)
 
     * remove dirs after the duplicate cleanup removes all its content
 
@@ -14,6 +17,20 @@
 
     * viewer:
         can we make it preload next/prev images, and only reload the image div when we jump?  to make arrow-based nav much faster
+            im_next = new Image()
+            im_next.src="..."
+        few things though:
+            - have to remember the details of not just the src fname, but also face* details
+            - onload event, what if we use it and use say arrow keys to load/change image, will one beat the other, but if we arrow next too fast, the img wont be loaded?
+
+        fullscreen could maybe use a bit of this:
+            document.getElementById('canvas').requestFullscreen()
+
+        buttons:
+            to (re)do faces (always or somehow turn on for select) 
+            rot90, rot180, rot270
+            flip h, flip z
+            fullscreen
 
     * could look to remove the hand fixing of json.loads of array data --> seems you can make your own datatype in the ORM, and it can do the conversion every time you use it
         - https://stackoverflow.com/questions/28143557/sqlalchemy-convert-column-value-back-and-forth-between-internal-and-database-fo