Added processors module

src/imagekit/ikconfig.py

@@ -0,0 +1,14 @@
+from imagekit import specs
+
+
+class ResizeThumbnail(specs.Resize):
+    width = 100
+    height = 75
+    crop = True
+    
+class EnhanceSmall(specs.Adjustment):
+    contrast = 1.2
+    sharpness = 1.1
+    
+class Thumbnail(specs.Spec):
+    processors = [ResizeThumbnail, EnhanceSmall]

src/imagekit/models.py

@@ -14,7 +14,7 @@ class IKProperty(object):
         self.spec = spec
         
     def create(self):
-        resize_to_spec(self.image, self.spec)
+        self.spec.process(self.image, self.path)
         
     def delete(self):
         if self.exists:
@@ -62,7 +62,7 @@ class IKProperty(object):
     @property
     def file(self):
         if not self.exists:
-            return None
+            self.create()
         return open(self.path)
 
 

src/imagekit/processors.py

@@ -0,0 +1,60 @@
+""" Imagekit Image "ImageProcessors"
+
+A processor defines a set of class variables (optional) and a 
+class method named "process" which processes the supplied image using
+the class properties as settings. The process method can be overridden as well allowing user to define their
+own effects/processes entirely.
+
+"""
+
+class ImageProcessor(object):
+    """ Base image processor class """
+    @classmethod
+    def process(cls, image):
+        return image
+
+
+class Resize(ImageProcessor):
+    width = None
+    height = None
+    crop = False
+    upscale = False
+    
+    
+class Transpose(ImageProcessor):
+    """ Rotates or flips the image
+    
+    Method choices:
+        - FLIP_LEFT RIGHT
+        - FLIP_TOP_BOTTOM
+        - ROTATE_90
+        - ROTATE_270
+        - ROTATE_180
+        
+    """
+    method = 'FLIP_LEFT_RIGHT'
+    
+    @classmethod
+    def process(cls, image):
+        return image.transpose(getattr(Image, cls.method))        
+
+    
+class Adjustment(ImageProcessor):
+    color = 1.0
+    brightness = 1.0
+    contrast = 1.0
+    sharpness = 1.0
+
+    @classmethod
+    def process(cls, image):
+        for name in ['Color', 'Brightness', 'Contrast', 'Sharpness']:
+            factor = getattr(cls, name.lower())
+            if factor != 1.0:
+                image = getattr(ImageEnhance, name)(image).enhance(factor)
+        return image
+
+
+class Reflection(ImageProcessor):
+    background_color = '#fffff'
+    size = 0.0
+    opacity = 0.6

src/imagekit/specs.py

@@ -0,0 +1,12 @@
+""" Base imagekit specification classes
+
+This module holds the base implementations and defaults for imagekit
+specification classes. Users import and subclass these classes to define new
+specifications. 
+
+"""
+class Spec(object):
+    increment_count = False
+    pre_cache = False
+    jpeg_quality = 70
+    processors = []