Implement #239

src/libprs500/ebooks/lrf/__init__.py

@@ -125,6 +125,8 @@ def option_parser(usage):
                       help='Add a header to all the pages with title and author.')
     laf.add_option('--headerformat', default="%t by %a", dest='headerformat', type='string',
                         help='Set the format of the header. %a is replaced by the author and %t by the title. Default is %default')
+    laf.add_option('--override-css', default=None, dest='_override_css', type='string',
+                   help='Override the CSS. Can be either a path to a CSS stylesheet or a string. If it is a string it is interpreted as CSS.')
     
     page = parser.add_option_group('PAGE OPTIONS')
     profiles = profile_map.keys()

src/libprs500/ebooks/lrf/html/convert_from.py

@@ -48,6 +48,13 @@ from libprs500.ebooks.metadata.opf import OPFReader
 from libprs500.devices.interface import Device
 from libprs500.ebooks.lrf.html.color_map import lrs_color
 
+def update_css(ncss, ocss):
+    for key in ncss.keys():
+        if ocss.has_key(key):
+            ocss[key].update(ncss[key])
+        else:
+            ocss[key] = ncss[key]
+
 class HTMLConverter(object):
     SELECTOR_PAT   = re.compile(r"([A-Za-z0-9\-\_\:\.]+[A-Za-z0-9\-\_\:\.\s\,]*)\s*\{([^\}]*)\}")
     PAGE_BREAK_PAT = re.compile(r'page-break-(?:after|before)\s*:\s*(\w+)', re.IGNORECASE)
@@ -199,6 +206,23 @@ class HTMLConverter(object):
         self.list_counter = 1
         
         self.book = book                #: The Book object representing a BBeB book
+        
+        self.override_css = {}
+        self.override_pcss = {}
+        if self._override_css is not None:
+            if os.access(self._override_css, os.R_OK):
+                src = open(self._override_css, 'rb').read()
+            else:
+                src = self._override_css
+            match = self.PAGE_BREAK_PAT.search(src) 
+            if match and not re.match('avoid', match.group(1), re.IGNORECASE):
+                self.page_break_found = True
+            ncss, npcss = self.parse_css(src)
+            if ncss:
+                update_css(ncss, self.override_css)
+            if npcss:
+                update_css(npcss, self.override_pcss)
+        
         self.start_on_file(path, is_root=True)
         
     def is_baen(self, soup):
@@ -1236,12 +1260,6 @@ class HTMLConverter(object):
             else:
                 self.logger.debug("Failed to process: %s", str(tag))
         elif tagname in ['style', 'link']:
-            def update_css(ncss, ocss):
-                for key in ncss.keys():
-                    if ocss.has_key(key):
-                        ocss[key].update(ncss[key])
-                    else:
-                        ocss[key] = ncss[key]
             ncss, npcss = {}, {}
             if tagname == 'style':
                 for c in tag.contents:
@@ -1265,8 +1283,10 @@ class HTMLConverter(object):
                     pass
             if ncss:
                 update_css(ncss, self.css)
+                self.css.update(self.override_css)
             if npcss:
                 update_css(npcss, self.pseudo_css)
+                self.pseudo_css.update(self.override_pcss)
         elif tagname == 'pre':
             self.end_current_para()
             self.end_current_block()

src/libprs500/gui2/dialogs/lrf_single.py

@@ -15,7 +15,8 @@
 import os
 
 from PyQt4.QtCore import QObject, SIGNAL, Qt
-from PyQt4.QtGui import QAbstractSpinBox, QLineEdit, QCheckBox, QDialog, QPixmap
+from PyQt4.QtGui import QAbstractSpinBox, QLineEdit, QCheckBox, QDialog, \
+                        QPixmap, QTextEdit
 
 from libprs500.gui2.dialogs.lrf_single_ui import Ui_LRFSingleDialog
 from libprs500.gui2.dialogs.choose_format import ChooseFormatDialog
@@ -108,6 +109,8 @@ class LRFSingleDialog(QDialog, Ui_LRFSingleDialog):
                     obj.setValue(cmdline[i+1])
                 elif isinstance(obj, QLineEdit):
                     obj.setText(cmdline[i+1])
+                elif isinstance(obj, QTextEdit):
+                    obj.setPlainText(cmdline[i+1])
             profile = cmdline[cmdline.index('--profile')+1]            
             self.gui_profile.setCurrentIndex(self.gui_profile.findText(profile))
             for prepro in self.PREPROCESS_OPTIONS:
@@ -197,6 +200,8 @@ class LRFSingleDialog(QDialog, Ui_LRFSingleDialog):
                 obj.setValue(default)
             elif isinstance(obj, QLineEdit) and default:
                 obj.setText(default)
+            elif isinstance(obj, QTextEdit) and default:
+                obj.setPlainText(default)
             elif isinstance(obj, QCheckBox):
                 state = Qt.Checked if default else Qt.Unchecked
                 obj.setCheckState(state)
@@ -266,6 +271,10 @@ class LRFSingleDialog(QDialog, Ui_LRFSingleDialog):
                 val = qstring_to_unicode(obj.text())
                 if val:
                     cmd.extend([opt, val])
+            elif isinstance(obj, QTextEdit):
+                val = qstring_to_unicode(obj.toPlainText())
+                if val:
+                    cmd.extend([opt, val])
             elif isinstance(obj, QCheckBox):
                 if obj.checkState() == Qt.Checked:
                     cmd.append(opt)

src/libprs500/gui2/dialogs/lrf_single.ui

@@ -468,7 +468,7 @@
                 </property>
                </widget>
               </item>
-              <item row="0" column="3" >
+              <item row="0" column="2" >
                <widget class="QDoubleSpinBox" name="gui_font_delta" >
                 <property name="buttonSymbols" >
                  <enum>QAbstractSpinBox::PlusMinus</enum>
@@ -503,7 +503,7 @@
                 </property>
                </widget>
               </item>
-              <item row="1" column="3" >
+              <item row="1" column="2" >
                <widget class="QDoubleSpinBox" name="gui_wordspace" >
                 <property name="buttonSymbols" >
                  <enum>QAbstractSpinBox::PlusMinus</enum>
@@ -538,7 +538,7 @@
                 </property>
                </widget>
               </item>
-              <item row="2" column="2" colspan="2" >
+              <item row="2" column="1" colspan="2" >
                <widget class="QComboBox" name="preprocess" />
               </item>
               <item row="3" column="0" colspan="4" >
@@ -597,18 +597,15 @@
                 </property>
                </widget>
               </item>
+              <item row="7" column="0" >
+               <widget class="QLabel" name="label_21" >
+                <property name="text" >
+                 <string>Override&lt;br>CSS</string>
+                </property>
+               </widget>
+              </item>
               <item row="7" column="1" >
-               <spacer>
-                <property name="orientation" >
-                 <enum>Qt::Vertical</enum>
-                </property>
-                <property name="sizeHint" >
-                 <size>
-                  <width>20</width>
-                  <height>41</height>
-                 </size>
-                </property>
-               </spacer>
+               <widget class="QTextEdit" name="gui_override_css" />
               </item>
              </layout>
             </widget>