Add item to UI to config para indent

src/calibre/ebooks/conversion/cli.py

@@ -125,7 +125,7 @@ def add_pipeline_options(parser, plumber):
                       'extra_css',
                       'margin_top', 'margin_left', 'margin_right',
                       'margin_bottom', 'dont_justify',
-                      'insert_blank_line', 'remove_paragraph_spacing',
+                      'insert_blank_line', 'remove_paragraph_spacing','remove_paragraph_spacing_indent_size',
                       'asciiize', 'remove_header', 'header_regex',
                       'remove_footer', 'footer_regex',
                   ]

src/calibre/ebooks/conversion/plumber.py

@@ -309,6 +309,11 @@ OptionRecommendation(name='remove_paragraph_spacing',
         'paragraphs of 1.5em. Spacing removal will not work '
         'if the source file does not use paragraphs (<p> or <div> tags).')
         ),
+        
+OptionRecommendation(name='remove_paragraph_spacing_indent_size',
+        recommended_value=1.5, level=OptionRecommendation.LOW,
+        help=_('Width of the indent used with Remove spacing between paragraphs option')
+        ),        
 
 OptionRecommendation(name='prefer_metadata_cover',
         recommended_value=False, level=OptionRecommendation.LOW,

src/calibre/ebooks/oeb/transforms/flatcss.py

@@ -278,7 +278,7 @@ class CSSFlattener(object):
             if self.context.insert_blank_line:
                 cssdict['margin-top'] = cssdict['margin-bottom'] = '0.5em'
             if self.context.remove_paragraph_spacing:
-                cssdict['text-indent'] = '1.5em'
+                cssdict['text-indent'] =  "%1.1f em" % self.context.remove_paragraph_spacing_indent_size
         if cssdict:
             items = cssdict.items()
             items.sort()

src/calibre/gui2/convert/look_and_feel.py

@@ -23,7 +23,7 @@ class LookAndFeelWidget(Widget, Ui_Form):
                     'font_size_mapping', 'line_height',
                     'linearize_tables',
                     'disable_font_rescaling', 'insert_blank_line',
-                    'remove_paragraph_spacing', 'input_encoding',
+                    'remove_paragraph_spacing', 'remove_paragraph_spacing_indent_size','input_encoding',
                     'asciiize']
                 )
         self.db, self.book_id = db, book_id
@@ -32,6 +32,8 @@ class LookAndFeelWidget(Widget, Ui_Form):
         self.opt_disable_font_rescaling.toggle()
         self.connect(self.button_font_key, SIGNAL('clicked()'),
                 self.font_key_wizard)
+        self.opt_remove_paragraph_spacing.toggle()
+        self.opt_remove_paragraph_spacing.toggle()
 
     def font_key_wizard(self):
         from calibre.gui2.convert.font_key import FontKeyChooser

src/calibre/gui2/convert/look_and_feel.ui

@@ -127,20 +127,39 @@
      </property>
     </widget>
    </item>
-   <item row="5" column="0" colspan="3">
+   <item row="5" column="0" >
     <widget class="QCheckBox" name="opt_remove_paragraph_spacing">
      <property name="text">
       <string>Remove &amp;spacing between paragraphs</string>
      </property>
     </widget>
-   </item>
-   <item row="6" column="0">
-    <widget class="QCheckBox" name="opt_insert_blank_line">
+   </item> <item row="5" column="1">
+    <widget class="QLabel" name="label_4">
      <property name="text">
-      <string>Insert &amp;blank line</string>
+      <string>Indent size:</string>
+     </property>
+     <property name="alignment">
+      <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
      </property>
     </widget>
    </item>
+   <item row="5" column="2">
+    <widget class="QDoubleSpinBox" name="opt_remove_paragraph_spacing_indent_size">
+     <property name="suffix">
+      <string> em</string>
+     </property>
+     <property name="decimals">
+      <number>1</number>
+     </property>
+    </widget>
+   </item>
+   <item row="6" column="0">
+       <widget class="QCheckBox" name="opt_insert_blank_line">
+        <property name="text">
+         <string>Insert &amp;blank line</string>
+        </property>
+       </widget>
+   </item>
    <item row="7" column="0">
     <widget class="QCheckBox" name="opt_dont_justify">
      <property name="text">
@@ -216,5 +235,17 @@
     </hint>
    </hints>
   </connection>
+  <connection>
+     <sender>opt_remove_paragraph_spacing</sender>
+     <signal>toggled(bool)</signal>
+     <receiver>label_4</receiver>
+     <slot>setEnabled(bool)</slot>
+    </connection>
+    <connection>
+     <sender>opt_remove_paragraph_spacing</sender>
+     <signal>toggled(bool)</signal>
+     <receiver>opt_remove_paragraph_spacing_indent_size</receiver>
+     <slot>setEnabled(bool)</slot>
+  </connection>
  </connections>
 </ui>