Add: option to split from left then right pages, add Kobo Aura h2o ereader and fix sorting bug

* Add: split option from left then right to manage some mangas
* Add: the Kobo Aura H2o ereader (special resolution)
* Fix: remove natsort dependency and use a custom function instead for
natural sorting

.gitignore

@@ -4,3 +4,4 @@ dist
 *.pyo
 *.mngl
 *.cbz
+*.bat

README.md

@@ -80,7 +80,6 @@ of your choice. First you should make sure that you have the required dependenci
 *   [Python 2.7](http://www.python.org/download/releases/2.7/)
 *   [Python Imaging Library (PIL)](http://www.pythonware.com/products/pil/)
 *   [ReportLab](https://pypi.python.org/pypi/reportlab)
-*   [natsort](https://pypi.python.org/pypi/natsort/3.0.1)
 *   [py2exe](http://www.py2exe.org/) (optional, for Windows distribution only)
 
 Now you can fetch the [latest version of the code](https://github.com/FooSoft/mangle/) and run the `mangle.pyw` script

mangle/book.py

@@ -13,14 +13,13 @@
 # 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 re
 from os.path import basename
 import os.path
 import tempfile
 from zipfile import ZipFile
 
 from PyQt4 import QtGui, QtCore, QtXml, uic
-from natsort import natsorted
 
 from about import DialogAbout
 from convert import DialogConvert
@@ -29,6 +28,13 @@ from options import DialogOptions
 import util
 
 
+# Sort function use to sort files in a natural order, by lowering
+# characters, and manage multi levels of integers (tome 1/ page 1.jpg, etc etc)
+def natural_key(string_):
+    """See http://www.codinghorror.com/blog/archives/001018.html"""
+    return [int(s) if s.isdigit() else s.lower() for s in re.split(r'(\d+)', string_)]
+
+
 class Book(object):
     DefaultDevice = 'Kindle Paperwhite'
     DefaultOutputFormat = 'CBZ only'
@@ -367,14 +373,16 @@ class MainWindowBook(QtGui.QMainWindow):
         filenamesListed = []
         for i in xrange(0, self.listWidgetFiles.count()):
             filenamesListed.append(self.listWidgetFiles.item(i).text())
-
-        for filename in natsorted(filenames):
+        
+        # Get files but in a natural sorted order
+        for filename in sorted(filenames, key=natural_key):
             if filename not in filenamesListed:
                 filename = QtCore.QString(filename)
                 self.listWidgetFiles.addItem(filename)
                 self.book.images.append(filename)
                 self.book.modified = True
 
+
     def addImageDirs(self, directories):
         filenames = []
 
@@ -387,6 +395,7 @@ class MainWindowBook(QtGui.QMainWindow):
 
         self.addImageFiles(filenames)
 
+
     def addCBZFiles(self, filenames):
         directories = []
         tempDir = tempfile.gettempdir()

mangle/convert.py

@@ -129,6 +129,14 @@ class DialogConvert(QtGui.QProgressDialog):
                     # Change target once again for left page
                     target = os.path.join(self.bookPath, '%05d.png' % (index * 2 + 1))
 
+                # For right page (if requested), but in inverted mode
+                if(self.book.imageFlags & ImageFlags.SplitInverse):
+                    # New path based on modified index
+                    target = os.path.join(self.bookPath, '%05d.png' % (index * 2 + 0))
+                    self.convertAndSave(source, target, device, flags ^ ImageFlags.SplitInverse | ImageFlags.SplitLeft, archive, pdf)
+                    # Change target once again for left page
+                    target = os.path.join(self.bookPath, '%05d.png' % (index * 2 + 1))
+
                 # Convert page
                 self.convertAndSave(source, target, device, flags, archive, pdf)
 

mangle/image.py

@@ -19,14 +19,17 @@ import os
 from PIL import Image, ImageDraw
 
 
+
 class ImageFlags:
     Orient = 1 << 0
     Resize = 1 << 1
     Frame = 1 << 2
     Quantize = 1 << 3
     Stretch = 1 << 4
-    Split = 1 << 5
-    SplitRight = 1 << 6
+    Split = 1 << 5         # split right then left
+    SplitRight = 1 << 6    # split only the right page
+    SplitLeft = 1 << 7     # split only the left page
+    SplitInverse = 1 << 8  # split left then right page
 
 
 class KindleData:
@@ -82,7 +85,8 @@ class KindleData:
         'Kindle DX': ((824, 1200), Palette15a),
         'Kindle DXG': ((824, 1200), Palette15a),
         'Kindle Touch': ((600, 800), Palette15a), 
-        'Kindle Paperwhite': ((758, 1024), Palette15b) # resolution given in manual, see http://kindle.s3.amazonaws.com/Kindle_Paperwhite_Users_Guide.pdf
+        'Kindle Paperwhite': ((758, 1024), Palette15b), # resolution given in manual, see http://kindle.s3.amazonaws.com/Kindle_Paperwhite_Users_Guide.pdf
+        'KoBo Aura H2o': ((1080, 1430), Palette15a), # resolution from http://www.fnac.com/Liseuse-Numerique-Kobo-by-Fnac-Kobo-Aura-H2O-Noir/a7745120/w-4
     }
     
     
@@ -204,10 +208,20 @@ def convertImage(source, target, device, flags):
     # Format according to palette
     image = formatImage(image)
     # Apply flag transforms
+
+    # Second pass of first split
     if flags & ImageFlags.SplitRight:
         image = splitRight(image)
-    if flags & ImageFlags.Split:
+    # First pass of first split option
+    if (flags & ImageFlags.Split):
         image = splitLeft(image)
+    # First pass of second splitting option
+    if flags & ImageFlags.SplitLeft:
+        image = splitLeft(image)
+    # second pass of second splitting option
+    if (flags & ImageFlags.SplitInverse):
+        image = splitRight(image)
+
     if flags & ImageFlags.Orient:
         image = orientImage(image, size)
     if flags & ImageFlags.Resize:

mangle/options.py

@@ -66,6 +66,8 @@ class DialogOptions(QtGui.QDialog):
             imageFlags |= ImageFlags.Frame
         if self.checkboxSplit.isChecked():
             imageFlags |= ImageFlags.Split
+        if self.checkboxSplitInverse.isChecked():
+            imageFlags |= ImageFlags.SplitInverse
 
         modified = (
             self.book.title != title or

mangle/ui/options.ui

@@ -101,6 +101,11 @@
             <string>Kindle Paperwhite</string>
            </property>
           </item>
+          <item>
+           <property name="text">
+            <string>KoBo Aura H2o</string>
+           </property>
+          </item>
          </widget>
         </item>
         <item row="1" column="0">
@@ -170,6 +175,13 @@
          <string>Split images into two pages (right, left)</string>
         </property>
        </widget>
+      </item>
+       <item>
+       <widget class="QCheckBox" name="checkboxSplitInverse">
+        <property name="text">
+         <string>Split images into two pages (left, right)</string>
+        </property>
+       </widget>
       </item>
         <item>
          <widget class="QLabel" name="label_3">