started work on resizing functions

1 files changed, 53 insertions, 0 deletions

diff --git a/app/photos/resize.py b/app/photos/resize.py
new file mode 100644
index 0000000..13c0151
--- /dev/null
+++ b/app/photos/resize.py
@@ -0,0 +1,53 @@
+import os
+import io
+
+from django.conf import settings
+
+try:
+    import Image
+    import ImageFile
+except ImportError:
+    try:
+        from PIL import Image
+        from PIL import ImageFile
+    except ImportError:
+        raise ImportError("Could not import the Python Imaging Library.")
+
+ImageFile.MAXBLOCK = 1000000
+
+
+def make_local_copies(self,photo):
+    orig_dir = settings.IMAGES_ROOT + '/flickr/full/' + photo.pub_date.strftime("%Y")
+    if not os.path.isdir(orig_dir):
+        os.makedirs(orig_dir)
+    im = io.StringIO(fname.read().decode('UTF-8'))  # constructs a StringIO holding the image
+    img = Image.open(im)
+    local_full = '%s/%s.jpg' % (orig_dir, photo.flickr_id)
+    img.save(local_full)
+
+    #calculate crop:
+    cur_width, cur_height = img.size
+    new_width, new_height = 291, 350
+    ratio = max(float(new_width) / cur_width, float(new_height) / cur_height)
+    x = (cur_width * ratio)
+    y = (cur_height * ratio)
+    xd = abs(new_width - x)
+    yd = abs(new_height - y)
+    x_diff = int(xd / 2)
+    y_diff = int(yd / 2)
+    box = (int(x_diff), int(y_diff), int(x_diff + new_width), int(y_diff + new_height))
+
+    # create resized file
+    resized = img.resize((int(x), int(y)), Image.ANTIALIAS).crop(box)
+    # save resized file
+    resized_filename = '%s/%s.jpg' % (crop_dir, set.id)
+    try:
+        if img.format == 'JPEG':
+            resized.save(resized_filename, 'JPEG', quality=95, optimize=True)
+        else:
+            resized.save(resized_filename)
+    except IOError as e:
+        if os.path.isfile(resized_filename):
+            os.unlink(resized_filename)
+        raise e
+    os.unlink(img)