Merge branch 'master' into bbmaster2

media/asset.py

@@ -29,11 +29,9 @@ from logging import getLogger
 import mimetypes
 import os, re, sys
 
-from zope import component
 from zope.interface import implements
-from cybertools.media.interfaces import IMediaAsset, IFileTransform
+from cybertools.media.interfaces import IMediaAsset
 from cybertools.media.piltransform import PILTransform
-from cybertools.storage.filesystem import FileSystemStorage
 
 TRANSFORM_STATEMENT = re.compile(r"\s*(\+?)([\w]+[\w\d]*)\(([^\)]*)\)\s*")
 
@@ -41,14 +39,17 @@ DEFAULT_FORMATS = {
     "image": "image/jpeg"
 }
 
+
 def parseTransformStatements(txStr):
     """ Parse statements in transform chain strings."""
     statements = TRANSFORM_STATEMENT.findall(txStr)
     return statements
 
+
 def getMimeBasetype(mimetype):
     return mimetype.split("/", 1)[0]
 
+
 def getMimetypeExt(mimetype):
     exts = mimetypes.guess_all_extensions(mimetype)
     return exts and exts[-1] or ""

media/piltransform.py

@@ -92,7 +92,7 @@ class PILTransform(object):
         box = (left, upper, right, lower)
         self.im = self.im.crop(box)
 
-    def resize(self, width, height=None):
+    def resize(self, width, height=None, fill=False):
         if self.im is None:
             return
         if not height:
@@ -100,11 +100,15 @@ class PILTransform(object):
             ratio = float(ow) / float(oh)
             height = int(round(float(width) / ratio))
         dims = (width, height)
-        try:
-            self.im.thumbnail(dims, Image.ANTIALIAS)
-        except IOError, e:
-            logger.warn(e)
-
+        if fill:
+            image = self.im
+            image.thumbnail(dims, Image.ANTIALIAS)
+            new = Image.new('RGBA', dims, (255, 255, 255, 0))  #with alpha
+            new.paste(image,((dims[0] - image.size[0]) / 2,
+                               (dims[1] - image.size[1]) / 2))
+            self.im = new
+            return new
+        return self.im.thumbnail(dims, Image.ANTIALIAS)
 
     def save(self, path, mimetype):
         if self.im is None: