Add photo module.

igc2kmz.py

@@ -22,6 +22,7 @@ import sys
 
 import igc2kmz
 import igc2kmz.igc
+import igc2kmz.photo
 
 
 def add_flight(option, opt, value, parser):
@@ -33,7 +34,7 @@ def add_flight_option(option, opt, value, parser):
 
 
 def add_flight_photo(option, opt, value, parser):
-  parser.values.flights[-1].photos.append(value)
+  parser.values.flights[-1].photos.append(igc2kmz.photo.Photo(value))
 
 
 def main(argv):

igc2kmz/photo.py

@@ -0,0 +1,41 @@
+#   igc2kmz/__init__.py  igc2kmz photo module
+#   Copyright (C) 2008  Tom Payne
+#
+#   This program is free software: you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation, either version 3 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+import datetime
+import re
+import urllib2
+import urlparse
+
+import exif
+
+
+EXIF_DATETIME_RE = re.compile(r'(\d+):(\d+):(\d+)\s+(\d+):(\d+):(\d+)')
+
+
+class Photo(object):
+
+  def __init__(self, url):
+    if urlparse.urlparse(url).scheme:
+      self.url = url
+    else:
+      self.url = 'file://' + url
+    file = urllib2.urlopen(self.url)
+    if file.info().typeheader != 'image/jpeg':
+      raise RuntimeError, '%s: not an image/jpeg' % self.url
+    self.jpeg = exif.JPEG(file)
+    m = DATETIME_RE.match(self.jpeg.exif.get('DateTimeOriginal') or self.jpeg.exif.get('DateTime') or '')
+    self.dt = datetime.datetime(*map(int, m.groups())) if m else None