[#201 state:fixed] Added an EXIF Timestamp column in PE.

cocoa/pe/ResultWindow.m

@@ -22,6 +22,7 @@ http://www.hardcoded.net/licenses/bsd_license
         {@"size", 63, 16, 0, YES, nil},
         {@"extension", 40, 16, 0, YES, nil},
         {@"dimensions", 73, 16, 0, YES, nil},
+        {@"exif_timestamp", 120, 16, 0, YES, nil},
         {@"mtime", 120, 16, 0, YES, nil},
         {@"percentage", 58, 16, 0, YES, nil},
         {@"dupe_count", 80, 16, 0, YES, nil},

core_pe/app.py

@@ -24,7 +24,7 @@ def get_delta_dimensions(value, ref_value):
 
 class DupeGuru(DupeGuruBase):
     NAME = __appname__
-    METADATA_TO_READ = ['size', 'mtime', 'dimensions']
+    METADATA_TO_READ = ['size', 'mtime', 'dimensions', 'exif_timestamp']
     
     def __init__(self, view, appdata):
         DupeGuruBase.__init__(self, view, appdata)
@@ -54,6 +54,7 @@ class DupeGuru(DupeGuruBase):
             'size': format_size(size, 0, 1, False),
             'extension': dupe.extension,
             'dimensions': format_dimensions(dimensions),
+            'exif_timestamp': dupe.exif_timestamp,
             'mtime': format_timestamp(mtime, delta and m),
             'percentage': format_perc(percentage),
             'dupe_count': format_dupe_count(dupe_count),

core_pe/matchexif.py

@@ -6,26 +6,18 @@
 # which should be included with this package. The terms are also available at 
 # http://www.hardcoded.net/licenses/bsd_license
 
-import logging
 from collections import defaultdict
 from itertools import combinations
 
-from hscommon import io
 from hscommon.trans import tr
 
 from core.engine import Match
-from . import exif
 
 def getmatches(files, match_scaled, j):
     timestamp2pic = defaultdict(set)
     for picture in j.iter_with_progress(files, tr("Read EXIF of %d/%d pictures")):
-        try:
+        timestamp = picture.exif_timestamp
-            with io.open(picture.path, 'rb') as fp:
-                exifdata = exif.get_fields(fp)
-                timestamp = exifdata['DateTimeOriginal']
         timestamp2pic[timestamp].add(picture)
-        except Exception:
-            logging.info("Couldn't read EXIF of picture: %s", picture.path)
     if '0000:00:00 00:00:00' in timestamp2pic: # very likely false matches
         del timestamp2pic['0000:00:00 00:00:00']
     matches = []

core_pe/photo.py

@@ -6,7 +6,7 @@
 # which should be included with this package. The terms are also available at 
 # http://www.hardcoded.net/licenses/bsd_license
 
-from hscommon import io
+import logging
 from hscommon.util import get_file_ext
 from core import fs
 from . import exif
@@ -15,6 +15,7 @@ class Photo(fs.File):
     INITIAL_INFO = fs.File.INITIAL_INFO.copy()
     INITIAL_INFO.update({
         'dimensions': (0,0),
+        'exif_timestamp': '',
     })
     __slots__ = fs.File.__slots__ + tuple(INITIAL_INFO.keys())
     
@@ -30,7 +31,7 @@ class Photo(fs.File):
     def _get_orientation(self):
         if not hasattr(self, '_cached_orientation'):
             try:
-                with io.open(self.path, 'rb') as fp:
+                with self.path.open('rb') as fp:
                     exifdata = exif.get_fields(fp)
                     # the value is a list (probably one-sized) of ints
                     orientations = exifdata['Orientation']
@@ -49,6 +50,13 @@ class Photo(fs.File):
             self.dimensions = self._plat_get_dimensions()
             if self._get_orientation() in {5, 6, 7, 8}:
                 self.dimensions = (self.dimensions[1], self.dimensions[0])
+        elif field == 'exif_timestamp':
+            try:
+                with self.path.open('rb') as fp:
+                    exifdata = exif.get_fields(fp)
+                    self.exif_timestamp = exifdata['DateTimeOriginal']
+            except Exception:
+                logging.info("Couldn't read EXIF of picture: %s", self.path)
     
     def get_blocks(self, block_count_per_side):
         return self._plat_get_blocks(block_count_per_side, self._get_orientation())

core_pe/result_table.py

@@ -20,6 +20,7 @@ class ResultTable(ResultTableBase):
         Column('size', coltr("Size (KB)"), optional=True),
         Column('extension', coltr("Kind"), visible=False, optional=True),
         Column('dimensions', coltr("Dimensions"), optional=True),
+        Column('exif_timestamp', coltr("EXIF Timestamp"), visible=False, optional=True),
         Column('mtime', coltr("Modification"), visible=False, optional=True),
         Column('percentage', coltr("Match %"), optional=True),
         Column('dupe_count', coltr("Dupe Count"), visible=False, optional=True),

qt/pe/results_model.py

@@ -16,6 +16,7 @@ class ResultsModel(ResultsModelBase):
         Column('size', defaultWidth=60),
         Column('extension', defaultWidth=40),
         Column('dimensions', defaultWidth=100),
+        Column('exif_timestamp', defaultWidth=120),
         Column('mtime', defaultWidth=120),
         Column('percentage', defaultWidth=60),
         Column('dupe_count', defaultWidth=80),