Push edition-specific scan option listing down to the core

... rather than have each UI layer repeat them.

Did qt, but not cocoa yet.

core_pe/scanner.py

@@ -1,12 +1,12 @@
-# Created By: Virgil Dupras
-# Created On: 2009-10-18
-# Copyright 2015 Hardcoded Software (http://www.hardcoded.net)
-# 
-# This software is licensed under the "GPLv3" License as described in the "LICENSE" file, 
-# which should be included with this package. The terms are also available at 
+# Copyright 2016 Hardcoded Software (http://www.hardcoded.net)
+#
+# This software is licensed under the "GPLv3" License as described in the "LICENSE" file,
+# which should be included with this package. The terms are also available at
 # http://www.gnu.org/licenses/gpl-3.0.html
 
-from core.scanner import Scanner, ScanType
+from hscommon.trans import tr
+
+from core.scanner import Scanner, ScanType, ScanOption
 
 from . import matchblock, matchexif
 from .cache import Cache
@@ -15,7 +15,13 @@ class ScannerPE(Scanner):
     cache_path = None
     match_scaled = False
     threshold = 75
-    
+
+    def get_scan_options(self):
+        return [
+            ScanOption(ScanType.FuzzyBlock, tr("Contents")),
+            ScanOption(ScanType.ExifTimestamp, tr("EXIF Timestamp")),
+        ]
+
     def _getmatches(self, files, j):
         if self.scan_type == ScanType.FuzzyBlock:
             return matchblock.getmatches(files, self.cache_path, self.threshold, self.match_scaled, j)
@@ -23,9 +29,9 @@ class ScannerPE(Scanner):
             return matchexif.getmatches(files, self.match_scaled, j)
         else:
             raise Exception("Invalid scan type")
-    
+
     def clear_picture_cache(self):
         cache = Cache(self.cache_path)
         cache.clear()
         cache.close()
-    
+