only crop top and bottom of pages

mangle/image.py

@@ -135,6 +135,13 @@ def quantizeImage(image, palette):
 
 @protect_bad_image
 def scaleCropImage(image, size):
+    widthDev, heightDev = size
+    widthImg, heightImg = image.size
+
+    # don't crop 2 page spreads.
+    if (float(widthImg) / float(heightImg)) > (float(widthDev) / float(heightDev)):
+        return resizeImage(image, size)
+    
     return ImageOps.fit(image, size, Image.ANTIALIAS)
 
 
@@ -184,11 +191,12 @@ def orientImage(image, size):
 # by inverting colors, and asking a bounder box ^^
 @protect_bad_image
 def autoCropImage(image):
+    w, h = image.size
     try:
         x0, y0, xend, yend = ImageChops.invert(image).getbbox()
     except TypeError: # bad image, specific to chops
         return image
-    image = image.crop((x0, y0, xend, yend))
+    image = image.crop((0, y0, w, yend))
 
     return image
 

mangle/ui/options.ui

@@ -217,7 +217,7 @@
       <item>
        <widget class="QRadioButton" name="checkboxScaleCrop">
         <property name="text">
-         <string>Scale and crop images to fill the screen</string>
+         <string>Scale and crop images to fill screen width</string>
         </property>
        </widget>
       </item>