merge from trunk

resources/recipes/ajiajin.recipe

@@ -0,0 +1,23 @@
+__license__   = 'GPL v3'
+__copyright__ = '2010, Hiroshi Miura <miurahr@linux.com>'
+'''
+ajiajin.com/blog
+'''
+
+from calibre.web.feeds.news import BasicNewsRecipe
+
+class AjiajinBlog(BasicNewsRecipe):
+    title          = u'Ajiajin blog'
+    __author__     = 'Hiroshi Miura'
+    oldest_article = 5
+    publication_type = 'blog'
+    max_articles_per_feed = 100
+    description    = 'The next generation internet trends in Japan and Asia'
+    publisher      = ''
+    category       = 'internet, asia, japan'
+    language       = 'en'
+    encoding      = 'utf-8'
+
+    feeds          = [(u'blog', u'http://feeds.feedburner.com/Asiajin')]
+
+

resources/recipes/chouchoublog.recipe

@@ -0,0 +1,37 @@
+__license__   = 'GPL v3'
+__copyright__ = '2010, Hiroshi Miura <miurahr@linux.com>'
+'''
+http://ameblo.jp/
+'''
+
+import re
+from calibre.web.feeds.news import BasicNewsRecipe
+
+class SakuraBlog(BasicNewsRecipe):
+    title          = u'chou chou blog'
+    __author__     = 'Hiroshi Miura'
+    oldest_article = 4
+    publication_type = 'blog'
+    max_articles_per_feed = 20
+    description    = 'Japanese popular dog blog'
+    publisher      = ''
+    category       = 'dog, pet, japan'
+    language       = 'ja'
+    encoding      = 'utf-8'
+    use_embedded_content = True
+
+    feeds          = [(u'blog', u'http://feedblog.ameba.jp/rss/ameblo/chouchou1218/rss20.xml')]
+
+    def parse_feeds(self):
+        feeds = BasicNewsRecipe.parse_feeds(self)
+        for curfeed in feeds:
+            delList = []
+            for a,curarticle in enumerate(curfeed.articles):
+                if re.search(r'rssad.jp', curarticle.url):
+                    delList.append(curarticle)
+            if len(delList)>0:
+                for d in delList:
+                    index = curfeed.articles.index(d)
+                    curfeed.articles[index:index+1] = []
+        return feeds
+

resources/recipes/dilbert.recipe

@@ -3,15 +3,16 @@ __copyright__ = '2009, Darko Miletic <darko.miletic at gmail.com>'
 '''
 http://www.dilbert.com
 '''
-import re
 
 from calibre.web.feeds.recipes import BasicNewsRecipe
+import re
 
-class DosisDiarias(BasicNewsRecipe):
+class DilbertBig(BasicNewsRecipe):
     title                  = 'Dilbert'
-    __author__             = 'Darko Miletic'
+    __author__             = 'Darko Miletic and Starson17'
     description            = 'Dilbert'
-    oldest_article         = 5
+    reverse_article_order = True
+    oldest_article         = 15
     max_articles_per_feed  = 100
     no_stylesheets         = True
     use_embedded_content   = True
@@ -29,20 +30,23 @@ class DosisDiarias(BasicNewsRecipe):
 
     feeds = [(u'Dilbert', u'http://feeds.dilbert.com/DilbertDailyStrip' )]
 
-    preprocess_regexps = [
-                    (re.compile('strip\..*\.gif', re.DOTALL|re.IGNORECASE),
-                        lambda match: 'strip.zoom.gif')
-                            ]
-
-
     def get_article_url(self, article):
         return article.get('feedburner_origlink', None)
 
+    preprocess_regexps = [
+        (re.compile('strip\..*\.gif', re.DOTALL|re.IGNORECASE), lambda match: 'strip.zoom.gif')
+        ]
+
     def preprocess_html(self, soup):
        for tag in soup.findAll(name='a'):
            if tag['href'].find('http://feedads') >= 0:
               tag.extract()
        return soup
 
-
+    extra_css = '''
-
+                    h1{font-family:Arial,Helvetica,sans-serif; font-weight:bold;font-size:large;}
+                    h2{font-family:Arial,Helvetica,sans-serif; font-weight:normal;font-size:small;}
+                    img {max-width:100%; min-width:100%;}
+                    p{font-family:Arial,Helvetica,sans-serif;font-size:small;}
+                    body{font-family:Helvetica,Arial,sans-serif;font-size:small;}
+		'''

resources/recipes/kahokushinpo.recipe

@@ -0,0 +1,31 @@
+__license__   = 'GPL v3'
+__copyright__ = '2010, Hiroshi Miura <miurahr@linux.com>'
+'''
+www.kahoku.co.jp
+'''
+
+from calibre.web.feeds.news import BasicNewsRecipe
+
+
+class KahokuShinpoNews(BasicNewsRecipe):
+    title          = u'\u6cb3\u5317\u65b0\u5831'
+    __author__     = 'Hiroshi Miura'
+    oldest_article = 2
+    max_articles_per_feed = 20
+    description    = 'Tohoku regional news paper in Japan'
+    publisher      = 'Kahoku Shinpo Sha'
+    category       = 'news, japan'
+    language       = 'ja'
+    encoding      = 'Shift_JIS'
+    no_stylesheets = True
+
+    feeds          = [(u'news', u'http://www.kahoku.co.jp/rss/index_thk.xml')]
+
+    keep_only_tags = [ dict(id="page_title"),
+                                   dict(id="news_detail"),
+                                   dict(id="bt_title"),
+                                   {'class':"photoLeft"},
+                                   dict(id="bt_body")
+                                 ]
+    remove_tags = [ {'class':"button"}]
+

resources/recipes/nationalgeographic.recipe

@@ -0,0 +1,38 @@
+__license__   = 'GPL v3'
+__copyright__ = '2010, Hiroshi Miura <miurahr@linux.com>'
+'''
+nationalgeographic.com
+'''
+
+from calibre.web.feeds.news import BasicNewsRecipe
+import re
+
+class NationalGeographicNews(BasicNewsRecipe):
+    title          = u'National Geographic News'
+    oldest_article = 7
+    max_articles_per_feed = 100
+    remove_javascript = True
+    no_stylesheets = True
+    use_embedded_content = False
+
+    feeds          = [(u'news', u'http://feeds.nationalgeographic.com/ng/News/News_Main')]
+
+    remove_tags_before = dict(id='page_head')
+    remove_tags_after = [dict(id='social_buttons'),{'class':'aside'}]
+    remove_tags = [
+                       {'class':'hidden'}
+
+                     ]
+
+    def parse_feeds(self):
+        feeds = BasicNewsRecipe.parse_feeds(self)
+        for curfeed in feeds:
+            delList = []
+            for a,curarticle in enumerate(curfeed.articles):
+                if re.search(r'ads\.pheedo\.com', curarticle.url):
+                    delList.append(curarticle)
+            if len(delList)>0:
+                for d in delList:
+                    index = curfeed.articles.index(d)
+                    curfeed.articles[index:index+1] = []
+        return feeds

resources/recipes/nationalgeographicjp.recipe

@@ -0,0 +1,20 @@
+__license__   = 'GPL v3'
+__copyright__ = '2010, Hiroshi Miura <miurahr@linux.com>'
+'''
+nationalgeographic.co.jp
+'''
+
+from calibre.web.feeds.news import BasicNewsRecipe
+import re
+
+class NationalGeoJp(BasicNewsRecipe):
+    title          = u'\u30ca\u30b7\u30e7\u30ca\u30eb\u30fb\u30b8\u30aa\u30b0\u30e9\u30d5\u30a3\u30c3\u30af\u30cb\u30e5\u30fc\u30b9'
+    oldest_article = 7
+    max_articles_per_feed = 100
+    no_stylesheets = True
+
+    feeds          = [(u'news', u'http://www.nationalgeographic.co.jp/news/rss.php')]
+
+    def print_version(self, url):
+        return re.sub(r'news_article.php','news_printer_friendly.php', url)
+

resources/recipes/nikkei_sub_shakai.recipe

@@ -10,8 +10,8 @@ import mechanize
 from calibre.ptempfile import PersistentTemporaryFile
 
 
-class NikkeiNet_sub_life(BasicNewsRecipe):
+class NikkeiNet_sub_shakai(BasicNewsRecipe):
-    title           = u'\u65e5\u7d4c\u65b0\u805e\u96fb\u5b50\u7248(\u751f\u6d3b)'
+    title           = u'\u65e5\u7d4c\u65b0\u805e\u96fb\u5b50\u7248(Social)'
     __author__      = 'Hiroshi Miura'
     description     = 'News and current market affairs from Japan'
     cover_url       = 'http://parts.nikkei.com/parts/ds/images/common/logo_r1.svg'

resources/recipes/paperli_topic.recipe

@@ -0,0 +1,58 @@
+__license__   = 'GPL v3'
+__copyright__ = '2010, Hiroshi Miura <miurahr@linux.com>'
+'''
+paperli
+'''
+
+from calibre.web.feeds.news import BasicNewsRecipe
+from calibre import strftime
+
+class paperli_topics(BasicNewsRecipe):
+    # Customize this recipe and change paperli_tag and title below to
+    # download news on your favorite tag
+    paperli_tag = 'climate'
+    title          = u'The #climate Daily - paperli'
+#-------------------------------------------------------------
+    __author__     = 'Hiroshi Miura'
+    oldest_article = 7
+    max_articles_per_feed = 100
+    description    = 'paper.li page about '+ paperli_tag
+    publisher      = 'paper.li'
+    category       = 'paper.li'
+    language       = 'en'
+    encoding       = 'utf-8'
+    remove_javascript = True
+    masthead_title = u'The '+ paperli_tag +' Daily'
+    timefmt        = '[%y/%m/%d]'
+    base_url     = 'http://paper.li'
+    index          = base_url+'/tag/'+paperli_tag
+
+
+    def parse_index(self):
+        # get topics
+        topics = []
+        soup   = self.index_to_soup(self.index)
+        topics_lists = soup.find('div',attrs={'class':'paper-nav-bottom'})
+        for item in topics_lists.findAll('li', attrs={'class':""}):
+            itema = item.find('a',href=True)
+            topics.append({'title': itema.string, 'url': itema['href']})
+
+        #get feeds
+        feeds = []
+        for topic in topics:
+            newsarticles = []
+            soup   = self.index_to_soup(''.join([self.base_url, topic['url'] ]))
+            topstories = soup.findAll('div',attrs={'class':'yui-u'})
+            for itt in topstories:
+                itema = itt.find('a',href=True,attrs={'class':'ts'})
+                if itema is not None:
+                    itemd = itt.find('div',text=True, attrs={'class':'text'})
+                    newsarticles.append({
+                                      'title'      :itema.string
+                                     ,'date'     :strftime(self.timefmt)
+                                     ,'url'        :itema['href']
+                                     ,'description':itemd.string
+                                    })
+            feeds.append((topic['title'], newsarticles))
+        return feeds
+

resources/recipes/science_based_medicine.recipe

@@ -0,0 +1,42 @@
+#!/usr/bin/env  python
+
+import re
+from calibre.web.feeds.news import BasicNewsRecipe
+from calibre.ebooks.BeautifulSoup import Tag
+
+class SBM(BasicNewsRecipe):
+    title                 = 'Science Based Medicine'
+    __author__            = 'BuzzKill'
+    description           = 'Exploring issues and controversies in the relationship between science and medicine'
+    oldest_article        = 5
+    max_articles_per_feed = 15
+    no_stylesheets        = True
+    use_embedded_content  = False
+    encoding              = 'utf-8'
+    publisher             = 'SBM'
+    category              = 'science, sbm, ebm, blog, pseudoscience'
+    language              = 'en'
+
+    lang                  = 'en-US'
+
+    conversion_options = {
+                          'comment'          : description
+                        , 'tags'             : category
+                        , 'publisher'        : publisher
+                        , 'language'         : lang
+                        , 'pretty_print'     : True
+                        }
+
+    keep_only_tags = [
+                      dict(name='a', attrs={'title':re.compile(r'Posts by.*', re.DOTALL|re.IGNORECASE)}),
+                      dict(name='div', attrs={'class':'entry'})
+                      ]
+
+    feeds = [(u'Science Based Medicine', u'http://www.sciencebasedmedicine.org/?feed=rss2')]
+
+    def preprocess_html(self, soup):
+        mtag = Tag(soup,'meta',[('http-equiv','Content-Type'),('context','text/html; charset=utf-8')])
+        soup.head.insert(0,mtag)
+        soup.html['lang'] = self.lang
+        return self.adeify_images(soup)
+

resources/recipes/uninohimitu.recipe

@@ -0,0 +1,36 @@
+__license__   = 'GPL v3'
+__copyright__ = '2010, Hiroshi Miura <miurahr@linux.com>'
+'''
+http://ameblo.jp/sauta19/
+'''
+
+import re
+from calibre.web.feeds.news import BasicNewsRecipe
+
+class UniNoHimituKichiBlog(BasicNewsRecipe):
+    title          = u'Uni secret base'
+    __author__     = 'Hiroshi Miura'
+    oldest_article = 2
+    publication_type = 'blog'
+    max_articles_per_feed = 20
+    description    = 'Japanese famous Cat blog'
+    publisher      = ''
+    category       = 'cat, pet, japan'
+    language       = 'ja'
+    encoding      = 'utf-8'
+
+    feeds          = [(u'blog', u'http://feedblog.ameba.jp/rss/ameblo/sauta19/rss20.xml')]
+
+    def parse_feeds(self):
+        feeds = BasicNewsRecipe.parse_feeds(self)
+        for curfeed in feeds:
+            delList = []
+            for a,curarticle in enumerate(curfeed.articles):
+                if re.search(r'rssad.jp', curarticle.url):
+                    delList.append(curarticle)
+            if len(delList)>0:
+                for d in delList:
+                    index = curfeed.articles.index(d)
+                    curfeed.articles[index:index+1] = []
+        return feeds
+

resources/recipes/zeitde.recipe

@@ -60,8 +60,8 @@ class ZeitDe(BasicNewsRecipe):
         for tag in soup.findAll(name=['ul','li']):
             tag.name = 'div'
 
-        soup.html['xml:lang'] = self.lang
+        soup.html['xml:lang'] = self.language.replace('_', '-')
-        soup.html['lang']     = self.lang
+        soup.html['lang']     = self.language.replace('_', '-')
         mtag = '<meta http-equiv="Content-Type" content="text/html; charset=' + self.encoding + '">'
         soup.head.insert(0,mtag)
         return soup

src/calibre/devices/errors.py

@@ -36,6 +36,11 @@ class UserFeedback(DeviceError):
        self.details = details
        self.msg = msg
 
+class OpenFeedback(DeviceError):
+    def __init__(self, msg):
+        self.feedback_msg = msg
+        DeviceError.__init__(self, msg)
+
 class DeviceBusy(ProtocolError):
     """ Raised when device is busy """
     def __init__(self, uerr=""):

src/calibre/devices/interface.py

@@ -216,6 +216,9 @@ class DevicePlugin(Plugin):
         an implementation of
         this function that should serve as a good example for USB Mass storage
         devices.
+
+        This method can raise an OpenFeedback exception to display a message to
+        the user.
         '''
         raise NotImplementedError()
 

src/calibre/ebooks/conversion/cli.py

@@ -120,7 +120,7 @@ def add_pipeline_options(parser, plumber):
                   [
                       'base_font_size', 'disable_font_rescaling',
                       'font_size_mapping',
-                      'line_height',
+                      'line_height', 'minimum_line_height',
                       'linearize_tables',
                       'extra_css', 'smarten_punctuation',
                       'margin_top', 'margin_left', 'margin_right',

src/calibre/ebooks/conversion/plumber.py

@@ -160,13 +160,30 @@ OptionRecommendation(name='disable_font_rescaling',
                    )
         ),
 
+OptionRecommendation(name='minimum_line_height',
+            recommended_value=120.0, level=OptionRecommendation.LOW,
+            help=_(
+            'The minimum line height, as a percentage of the element\'s '
+            'calculated font size. calibre will ensure that every element '
+            'has a line height of at least this setting, irrespective of '
+            'what the input document specifies. Set to zero to disable. '
+            'Default is 120%. Use this setting in preference to '
+            'the direct line height specification, unless you know what '
+            'you are doing. For example, you can achieve "double spaced" '
+            'text by setting this to 240.'
+            )
+        ),
+
 
 OptionRecommendation(name='line_height',
             recommended_value=0, level=OptionRecommendation.LOW,
-            help=_('The line height in pts. Controls spacing between consecutive '
+            help=_(
-                   'lines of text. By default no line height manipulation is '
+            'The line height in pts. Controls spacing between consecutive '
-                   'performed.'
+            'lines of text. Only applies to elements that do not define '
-                   )
+            'their own line height. In most cases, the minimum line height '
+            'option is more useful. '
+            'By default no line height manipulation is performed.'
+            )
         ),
 
 OptionRecommendation(name='linearize_tables',

src/calibre/ebooks/fb2/fb2ml.py

@@ -73,6 +73,10 @@ class FB2MLizer(object):
         text = re.sub(r'(?miu)<p>\s*</p>', '', text)
         text = re.sub(r'(?miu)\s+</p>', '</p>', text)
         text = re.sub(r'(?miu)</p><p>', '</p>\n\n<p>', text)
+        
+        if self.opts.insert_blank_line:
+            text = re.sub(r'(?miu)</p>', '</p><empty-line />', text)
+        
         return text
 
     def fb2_header(self):
@@ -293,6 +297,18 @@ class FB2MLizer(object):
             s_out, s_tags = self.handle_simple_tag('emphasis', tag_stack+tags)
             fb2_out += s_out
             tags += s_tags
+        elif tag in ('del', 'strike'):
+            s_out, s_tags = self.handle_simple_tag('strikethrough', tag_stack+tags)
+            fb2_out += s_out
+            tags += s_tags
+        elif tag == 'sub':
+            s_out, s_tags = self.handle_simple_tag('sub', tag_stack+tags)
+            fb2_out += s_out
+            tags += s_tags
+        elif tag == 'sup':
+            s_out, s_tags = self.handle_simple_tag('sup', tag_stack+tags)
+            fb2_out += s_out
+            tags += s_tags
 
         # Processes style information.
         if style['font-style'] == 'italic':
@@ -303,6 +319,10 @@ class FB2MLizer(object):
             s_out, s_tags = self.handle_simple_tag('strong', tag_stack+tags)
             fb2_out += s_out
             tags += s_tags
+        elif style['text-decoration'] == 'line-through':
+            s_out, s_tags = self.handle_simple_tag('strikethrough', tag_stack+tags)
+            fb2_out += s_out
+            tags += s_tags
 
         # Process element text.
         if hasattr(elem_tree, 'text') and elem_tree.text:

src/calibre/ebooks/html/input.py

@@ -314,6 +314,8 @@ class HTMLInput(InputFormatPlugin):
             rewrite_links, urlnormalize, urldefrag, BINARY_MIME, OEB_STYLES, \
             xpath
         from calibre import guess_type
+        from calibre.ebooks.oeb.transforms.metadata import \
+            meta_info_to_oeb_metadata
         import cssutils
         self.OEB_STYLES = OEB_STYLES
         oeb = create_oebbook(log, None, opts, self,
@@ -321,15 +323,7 @@ class HTMLInput(InputFormatPlugin):
         self.oeb = oeb
 
         metadata = oeb.metadata
-        if mi.title:
+        meta_info_to_oeb_metadata(mi, metadata, log)
-            metadata.add('title', mi.title)
-        if mi.authors:
-            for a in mi.authors:
-                metadata.add('creator', a, attrib={'role':'aut'})
-        if mi.publisher:
-            metadata.add('publisher', mi.publisher)
-        if mi.isbn:
-            metadata.add('identifier', mi.isbn, attrib={'scheme':'ISBN'})
         if not metadata.language:
             oeb.logger.warn(u'Language not specified')
             metadata.add('language', get_lang().replace('_', '-'))

src/calibre/ebooks/metadata/html.py

@@ -170,7 +170,27 @@ def get_metadata_(src, encoding=None):
         if match:
             series = match.group(1)
     if series:
+        pat = re.compile(r'\[([.0-9]+)\]')
+        match = pat.search(series)
+        series_index = None
+        if match is not None:
+            try:
+                series_index = float(match.group(1))
+            except:
+                pass
+            series = series.replace(match.group(), '').strip()
+
         mi.series = ent_pat.sub(entity_to_unicode, series)
+        if series_index is None:
+            pat = get_meta_regexp_("Seriesnumber")
+            match = pat.search(src)
+            if match:
+                try:
+                    series_index = float(match.group(1))
+                except:
+                    pass
+        if series_index is not None:
+            mi.series_index = series_index
 
     # RATING
     rating = None

src/calibre/ebooks/mobi/mobiml.py

@@ -184,7 +184,7 @@ class MobiMLizer(object):
                     para.attrib['value'] = str(istates[-2].list_num)
             elif tag in NESTABLE_TAGS and istate.rendered:
                 para = wrapper = bstate.nested[-1]
-            elif left > 0 and indent >= 0:
+            elif not self.opts.mobi_ignore_margins and left > 0 and indent >= 0:
                 ems = self.profile.mobi_ems_per_blockquote
                 para = wrapper = etree.SubElement(parent, XHTML('blockquote'))
                 para = wrapper

src/calibre/ebooks/mobi/output.py

@@ -39,6 +39,12 @@ class MOBIOutput(OutputFormatPlugin):
         OptionRecommendation(name='personal_doc', recommended_value='[PDOC]',
             help=_('Tag marking book to be filed with Personal Docs')
         ),
+        OptionRecommendation(name='mobi_ignore_margins',
+            recommended_value=False,
+            help=_('Ignore margins in the input document. If False, then '
+                'the MOBI output plugin will try to convert margins specified'
+                ' in the input document, otherwise it will ignore them.')
+        ),
     ])
 
     def check_for_periodical(self):

src/calibre/ebooks/oeb/stylizer.py

@@ -633,12 +633,12 @@ class Style(object):
             parent = self._getparent()
             if 'line-height' in self._style:
                 lineh = self._style['line-height']
+                if lineh == 'normal':
+                    lineh = '1.2'
                 try:
-                    float(lineh)
+                    result = float(lineh) * self.fontSize
                 except ValueError:
                     result = self._unit_convert(lineh, base=self.fontSize)
-                else:
-                    result = float(lineh) * self.fontSize
             elif parent is not None:
                 # TODO: proper inheritance
                 result = parent.lineHeight

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

@@ -245,6 +245,8 @@ class CSSFlattener(object):
             del node.attrib['bgcolor']
         if cssdict.get('font-weight', '').lower() == 'medium':
             cssdict['font-weight'] = 'normal' # ADE chokes on font-weight medium
+
+        fsize = font_size
         if not self.context.disable_font_rescaling:
             _sbase = self.sbase if self.sbase is not None else \
                 self.context.source.fbase
@@ -258,6 +260,14 @@ class CSSFlattener(object):
                 fsize = self.fmap[font_size]
                 cssdict['font-size'] = "%0.5fem" % (fsize / psize)
                 psize = fsize
+
+        try:
+            minlh = self.context.minimum_line_height / 100.
+            if style['line-height'] < minlh * fsize:
+                cssdict['line-height'] = str(minlh)
+        except:
+            self.oeb.logger.exception('Failed to set minimum line-height')
+
         if cssdict:
             if self.lineh and self.fbase and tag != 'body':
                 self.clean_edges(cssdict, style, psize)
@@ -290,6 +300,7 @@ class CSSFlattener(object):
             lineh = self.lineh / psize
             cssdict['line-height'] = "%0.5fem" % lineh
 
+
         if (self.context.remove_paragraph_spacing or
                 self.context.insert_blank_line) and tag in ('p', 'div'):
             if item_id != 'calibre_jacket' or self.context.output_profile.name == 'Kindle':

src/calibre/ebooks/txt/input.py

@@ -77,10 +77,14 @@ class TXTInput(InputFormatPlugin):
         base = os.getcwdu()
         if hasattr(stream, 'name'):
             base = os.path.dirname(stream.name)
-        htmlfile = open(os.path.join(base, 'temp_calibre_txt_input_to_html.html'),
+        fname = os.path.join(base, 'index.html')
-                'wb')
+        c = 0
-        htmlfile.write(html.encode('utf-8'))
+        while os.path.exists(fname):
-        htmlfile.close()
+            c += 1
+            fname = 'index%d.html'%c
+        htmlfile = open(fname, 'wb')
+        with htmlfile:
+            htmlfile.write(html.encode('utf-8'))
         cwd = os.getcwdu()
         odi = options.debug_pipeline
         options.debug_pipeline = None

src/calibre/gui2/__init__.py

@@ -9,7 +9,7 @@ from PyQt4.Qt import QVariant, QFileInfo, QObject, SIGNAL, QBuffer, Qt, \
                          QByteArray, QTranslator, QCoreApplication, QThread, \
                          QEvent, QTimer, pyqtSignal, QDate, QDesktopServices, \
                          QFileDialog, QMessageBox, QPixmap, QFileIconProvider, \
-                         QIcon, QApplication, QDialog, QPushButton, QUrl
+                         QIcon, QApplication, QDialog, QPushButton, QUrl, QFont
 
 ORG_NAME = 'KovidsBrain'
 APP_UID  = 'libprs500'
@@ -52,6 +52,7 @@ gprefs.defaults['show_splash_screen'] = True
 gprefs.defaults['toolbar_icon_size'] = 'medium'
 gprefs.defaults['toolbar_text'] = 'auto'
 gprefs.defaults['show_child_bar'] = False
+gprefs.defaults['font'] = None
 
 # }}}
 
@@ -613,6 +614,10 @@ class Application(QApplication):
         qt_app = self
         self._file_open_paths = []
         self._file_open_lock = RLock()
+        self.original_font = QFont(QApplication.font())
+        fi = gprefs['font']
+        if fi is not None:
+            QApplication.setFont(QFont(*fi))
 
     def _send_file_open_events(self):
         with self._file_open_lock:

src/calibre/gui2/actions/edit_metadata.py

@@ -154,15 +154,17 @@ class EditMetadataAction(InterfaceAction):
             d.view_format.connect(lambda
                     fmt:self.gui.iactions['View'].view_format(row_list[current_row],
                         fmt))
-            if d.exec_() != d.Accepted:
+            ret = d.exec_()
-                d.view_format.disconnect()
+            d.break_cycles()
+            if ret != d.Accepted:
                 break
-            d.view_format.disconnect()
+
             changed.add(d.id)
             if d.row_delta == 0:
                 break
             current_row += d.row_delta
 
+
         if changed:
             self.gui.library_view.model().refresh_ids(list(changed))
             current = self.gui.library_view.currentIndex()

src/calibre/gui2/convert/__init__.py

@@ -10,7 +10,7 @@ import textwrap
 from functools import partial
 
 from PyQt4.Qt import QWidget, QSpinBox, QDoubleSpinBox, QLineEdit, QTextEdit, \
-    QCheckBox, QComboBox, Qt, QIcon, pyqtSignal
+    QCheckBox, QComboBox, Qt, QIcon, pyqtSignal, QLabel
 
 from calibre.customize.conversion import OptionRecommendation
 from calibre.ebooks.conversion.config import load_defaults, \
@@ -81,6 +81,21 @@ class Widget(QWidget):
         self.apply_recommendations(defaults)
         self.setup_help(get_help)
 
+        def process_child(child):
+            for g in child.children():
+                if isinstance(g, QLabel):
+                    buddy = g.buddy()
+                    if buddy is not None and hasattr(buddy, '_help'):
+                        g._help = buddy._help
+                        htext = unicode(buddy.toolTip()).strip()
+                        g.setToolTip(htext)
+                        g.setWhatsThis(htext)
+                        g.__class__.enterEvent = lambda obj, event: self.set_help(getattr(obj, '_help', obj.toolTip()))
+                else:
+                    process_child(g)
+        process_child(self)
+
+
     def restore_defaults(self, get_option):
         defaults = GuiRecommendations()
         defaults.merge_recommendations(get_option, OptionRecommendation.LOW,

src/calibre/gui2/convert/look_and_feel.py

@@ -21,7 +21,7 @@ class LookAndFeelWidget(Widget, Ui_Form):
     def __init__(self, parent, get_option, get_help, db=None, book_id=None):
         Widget.__init__(self, parent,
                 ['change_justification', 'extra_css', 'base_font_size',
-                    'font_size_mapping', 'line_height',
+                    'font_size_mapping', 'line_height', 'minimum_line_height',
                     'linearize_tables', 'smarten_punctuation',
                     'disable_font_rescaling', 'insert_blank_line',
                     'remove_paragraph_spacing', 'remove_paragraph_spacing_indent_size','input_encoding',

src/calibre/gui2/convert/look_and_feel.ui

@@ -97,7 +97,7 @@
      </item>
     </layout>
    </item>
-   <item row="3" column="0">
+   <item row="4" column="0">
     <widget class="QLabel" name="label">
      <property name="text">
       <string>Line &amp;height:</string>
@@ -107,7 +107,7 @@
      </property>
     </widget>
    </item>
-   <item row="3" column="1" colspan="2">
+   <item row="4" column="1" colspan="2">
     <widget class="QDoubleSpinBox" name="opt_line_height">
      <property name="suffix">
       <string> pt</string>
@@ -117,7 +117,7 @@
      </property>
     </widget>
    </item>
-   <item row="4" column="0">
+   <item row="5" column="0">
     <widget class="QLabel" name="label_3">
      <property name="text">
       <string>Input character &amp;encoding:</string>
@@ -127,17 +127,17 @@
      </property>
     </widget>
    </item>
-   <item row="4" column="1" colspan="3">
+   <item row="5" column="1" colspan="3">
     <widget class="QLineEdit" name="opt_input_encoding"/>
    </item>
-   <item row="5" column="0" colspan="2">
+   <item row="6" column="0" colspan="2">
     <widget class="QCheckBox" name="opt_remove_paragraph_spacing">
      <property name="text">
       <string>Remove &amp;spacing between paragraphs</string>
      </property>
     </widget>
    </item>
-   <item row="5" column="2" colspan="2">
+   <item row="6" column="2" colspan="2">
     <layout class="QHBoxLayout" name="horizontalLayout_2">
      <item>
       <widget class="QLabel" name="label_4">
@@ -164,21 +164,21 @@
      </item>
     </layout>
    </item>
-   <item row="6" column="0">
+   <item row="7" column="0">
     <widget class="QLabel" name="label_5">
      <property name="text">
       <string>Text justification:</string>
      </property>
     </widget>
    </item>
-   <item row="7" column="0">
+   <item row="8" column="0">
     <widget class="QCheckBox" name="opt_linearize_tables">
      <property name="text">
       <string>&amp;Linearize tables</string>
      </property>
     </widget>
    </item>
-   <item row="10" column="0" colspan="4">
+   <item row="11" column="0" colspan="4">
     <widget class="QGroupBox" name="groupBox">
      <property name="title">
       <string>Extra &amp;CSS</string>
@@ -190,37 +190,60 @@
      </layout>
     </widget>
    </item>
-   <item row="6" column="2" colspan="2">
+   <item row="7" column="2" colspan="2">
     <widget class="QComboBox" name="opt_change_justification"/>
    </item>
-   <item row="7" column="1" colspan="3">
+   <item row="8" column="1" colspan="3">
     <widget class="QCheckBox" name="opt_asciiize">
      <property name="text">
       <string>&amp;Transliterate unicode characters to ASCII</string>
      </property>
     </widget>
    </item>
-   <item row="8" column="0">
+   <item row="9" column="0">
     <widget class="QCheckBox" name="opt_insert_blank_line">
      <property name="text">
       <string>Insert &amp;blank line</string>
      </property>
     </widget>
    </item>
-   <item row="8" column="1" colspan="2">
+   <item row="9" column="1" colspan="2">
     <widget class="QCheckBox" name="opt_keep_ligatures">
      <property name="text">
       <string>Keep &amp;ligatures</string>
      </property>
     </widget>
    </item>
-   <item row="9" column="0">
+   <item row="10" column="0">
     <widget class="QCheckBox" name="opt_smarten_punctuation">
      <property name="text">
       <string>Smarten &amp;punctuation</string>
      </property>
     </widget>
    </item>
+   <item row="3" column="0">
+    <widget class="QLabel" name="label_6">
+     <property name="text">
+      <string>Minimum &amp;line height:</string>
+     </property>
+     <property name="buddy">
+      <cstring>opt_minimum_line_height</cstring>
+     </property>
+    </widget>
+   </item>
+   <item row="3" column="1" colspan="2">
+    <widget class="QDoubleSpinBox" name="opt_minimum_line_height">
+     <property name="suffix">
+      <string> %</string>
+     </property>
+     <property name="decimals">
+      <number>1</number>
+     </property>
+     <property name="maximum">
+      <double>900.000000000000000</double>
+     </property>
+    </widget>
+   </item>
   </layout>
  </widget>
  <resources>

src/calibre/gui2/convert/mobi_output.py

@@ -25,6 +25,7 @@ class PluginWidget(Widget, Ui_Form):
     def __init__(self, parent, get_option, get_help, db=None, book_id=None):
         Widget.__init__(self, parent,
                 ['prefer_author_sort', 'rescale_images', 'toc_title',
+                    'mobi_ignore_margins',
                 'dont_compress', 'no_inline_toc', 'masthead_font','personal_doc']
                 )
         self.db, self.book_id = db, book_id

src/calibre/gui2/convert/mobi_output.ui

@@ -55,7 +55,7 @@
      </property>
     </widget>
    </item>
-   <item row="5" column="0" colspan="2">
+   <item row="6" column="0" colspan="2">
     <widget class="QGroupBox" name="groupBox">
      <property name="title">
       <string>Kindle options</string>
@@ -101,7 +101,7 @@
      </layout>
     </widget>
    </item>
-   <item row="6" column="0">
+   <item row="7" column="0">
     <spacer name="verticalSpacer_2">
      <property name="orientation">
       <enum>Qt::Vertical</enum>
@@ -114,6 +114,13 @@
      </property>
     </spacer>
    </item>
+   <item row="5" column="0">
+    <widget class="QCheckBox" name="opt_mobi_ignore_margins">
+     <property name="text">
+      <string>Ignore &amp;margins</string>
+     </property>
+    </widget>
+   </item>
   </layout>
  </widget>
  <resources/>

src/calibre/gui2/device.py

@@ -12,7 +12,7 @@ from PyQt4.Qt import QMenu, QAction, QActionGroup, QIcon, SIGNAL, \
 from calibre.customize.ui import available_input_formats, available_output_formats, \
     device_plugins
 from calibre.devices.interface import DevicePlugin
-from calibre.devices.errors import UserFeedback
+from calibre.devices.errors import UserFeedback, OpenFeedback
 from calibre.gui2.dialogs.choose_format import ChooseFormatDialog
 from calibre.utils.ipc.job import BaseJob
 from calibre.devices.scanner import DeviceScanner
@@ -122,7 +122,8 @@ def device_name_for_plugboards(device_class):
 
 class DeviceManager(Thread): # {{{
 
-    def __init__(self, connected_slot, job_manager, open_feedback_slot, sleep_time=2):
+    def __init__(self, connected_slot, job_manager, open_feedback_slot,
+            open_feedback_msg, sleep_time=2):
         '''
         :sleep_time: Time to sleep between device probes in secs
         '''
@@ -143,6 +144,7 @@ class DeviceManager(Thread): # {{{
         self.ejected_devices  = set([])
         self.mount_connection_requests = Queue.Queue(0)
         self.open_feedback_slot = open_feedback_slot
+        self.open_feedback_msg = open_feedback_msg
 
     def report_progress(self, *args):
         pass
@@ -163,6 +165,9 @@ class DeviceManager(Thread): # {{{
                 dev.reset(detected_device=detected_device,
                     report_progress=self.report_progress)
                 dev.open()
+            except OpenFeedback, e:
+                self.open_feedback_msg(dev.get_gui_name(), e.feedback_msg)
+                continue
             except:
                 tb = traceback.format_exc()
                 if DEBUG or tb not in self.reported_errors:
@@ -594,11 +599,16 @@ class DeviceMixin(object): # {{{
                 _('Error communicating with device'), ' ')
         self.device_error_dialog.setModal(Qt.NonModal)
         self.device_manager = DeviceManager(Dispatcher(self.device_detected),
-                self.job_manager, Dispatcher(self.status_bar.show_message))
+                self.job_manager, Dispatcher(self.status_bar.show_message),
+                Dispatcher(self.show_open_feedback))
         self.device_manager.start()
         if tweaks['auto_connect_to_folder']:
             self.connect_to_folder_named(tweaks['auto_connect_to_folder'])
 
+    def show_open_feedback(self, devname, msg):
+        self.__of_dev_mem__ = d = info_dialog(self, devname, msg)
+        d.show()
+
     def auto_convert_question(self, msg, autos):
         autos = u'\n'.join(map(unicode, map(force_unicode, autos)))
         return self.ask_a_yes_no_question(

src/calibre/gui2/dialogs/metadata_bulk.py

@@ -102,7 +102,7 @@ class MyBlockingBusy(QDialog):
         remove_all, remove, add, au, aus, do_aus, rating, pub, do_series, \
             do_autonumber, do_remove_format, remove_format, do_swap_ta, \
             do_remove_conv, do_auto_author, series, do_series_restart, \
-            series_start_value, do_title_case, clear_series = self.args
+            series_start_value, do_title_case, cover_action, clear_series = self.args
 
 
         # first loop: do author and title. These will commit at the end of each
@@ -129,6 +129,23 @@ class MyBlockingBusy(QDialog):
                 self.db.set_title(id, titlecase(title), notify=False)
             if au:
                 self.db.set_authors(id, string_to_authors(au), notify=False)
+            if cover_action == 'remove':
+                self.db.remove_cover(id)
+            elif cover_action == 'generate':
+                from calibre.ebooks import calibre_cover
+                from calibre.ebooks.metadata import fmt_sidx
+                from calibre.gui2 import config
+                mi = self.db.get_metadata(id, index_is_id=True)
+                series_string = None
+                if mi.series:
+                    series_string = _('Book %s of %s')%(
+                        fmt_sidx(mi.series_index,
+                        use_roman=config['use_roman_numerals_for_series_number']),
+                        mi.series)
+
+                cdata = calibre_cover(mi.title, mi.format_field('authors')[-1],
+                        series_string=series_string)
+                self.db.set_cover(id, cdata)
         elif self.current_phase == 2:
             # All of these just affect the DB, so we can tolerate a total rollback
             if do_auto_author:
@@ -678,11 +695,16 @@ class MetadataBulkDialog(QDialog, Ui_MetadataBulkDialog):
         do_remove_conv = self.remove_conversion_settings.isChecked()
         do_auto_author = self.auto_author_sort.isChecked()
         do_title_case = self.change_title_to_title_case.isChecked()
+        cover_action = None
+        if self.cover_remove.isChecked():
+            cover_action = 'remove'
+        elif self.cover_generate.isChecked():
+            cover_action = 'generate'
 
         args = (remove_all, remove, add, au, aus, do_aus, rating, pub, do_series,
                 do_autonumber, do_remove_format, remove_format, do_swap_ta,
                 do_remove_conv, do_auto_author, series, do_series_restart,
-                series_start_value, do_title_case, clear_series)
+                series_start_value, do_title_case, cover_action, clear_series)
 
         bb = MyBlockingBusy(_('Applying changes to %d books.\nPhase {0} {1}%%.')
                 %len(self.ids), args, self.db, self.ids,

src/calibre/gui2/dialogs/metadata_bulk.ui

@@ -381,7 +381,7 @@ Future conversion of these books will use the default settings.</string>
            </property>
           </widget>
          </item>
-         <item row="15" column="0" colspan="3">
+         <item row="14" column="0" colspan="3">
           <spacer name="verticalSpacer_2">
            <property name="orientation">
             <enum>Qt::Vertical</enum>
@@ -394,6 +394,39 @@ Future conversion of these books will use the default settings.</string>
            </property>
           </spacer>
          </item>
+         <item row="13" column="0" colspan="3">
+          <widget class="QGroupBox" name="groupBox">
+           <property name="title">
+            <string>Change &amp;cover</string>
+           </property>
+           <layout class="QVBoxLayout" name="verticalLayout_2">
+            <item>
+             <widget class="QRadioButton" name="cover_no_change">
+              <property name="text">
+               <string>&amp;No change</string>
+              </property>
+              <property name="checked">
+               <bool>true</bool>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QRadioButton" name="cover_remove">
+              <property name="text">
+               <string>&amp;Remove cover</string>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QRadioButton" name="cover_generate">
+              <property name="text">
+               <string>&amp;Generate default cover</string>
+              </property>
+             </widget>
+            </item>
+           </layout>
+          </widget>
+         </item>
         </layout>
        </widget>
        <widget class="QWidget" name="tab">

src/calibre/gui2/dialogs/metadata_single.py

@@ -240,37 +240,39 @@ class MetadataSingleDialog(ResizableDialog, Ui_MetadataSingleDialog):
         self.cover_fetcher = CoverFetcher(None, None, isbn,
                                             self.timeout, title, author)
         self.cover_fetcher.start()
-        self._hangcheck = QTimer(self)
-        self._hangcheck.timeout.connect(self.hangcheck,
-                type=Qt.QueuedConnection)
         self.cf_start_time = time.time()
         self.pi.start(_('Downloading cover...'))
-        self._hangcheck.start(100)
+        QTimer.singleShot(100, self.hangcheck)
 
     def hangcheck(self):
-        if self.cover_fetcher.is_alive() and \
+        cf = self.cover_fetcher
-            time.time()-self.cf_start_time < self.COVER_FETCH_TIMEOUT:
+        if cf is None:
+            # Called after dialog closed
+            return
+
+        if cf.is_alive() and \
+            time.time()-self.cf_start_time < self.COVER_FETCH_TIMEOUT:
+            QTimer.singleShot(100, self.hangcheck)
             return
 
-        self._hangcheck.stop()
         try:
-            if self.cover_fetcher.is_alive():
+            if cf.is_alive():
                 error_dialog(self, _('Cannot fetch cover'),
                     _('<b>Could not fetch cover.</b><br/>')+
                     _('The download timed out.')).exec_()
                 return
-            if self.cover_fetcher.needs_isbn:
+            if cf.needs_isbn:
                 error_dialog(self, _('Cannot fetch cover'),
                     _('Could not find cover for this book. Try '
                       'specifying the ISBN first.')).exec_()
                 return
-            if self.cover_fetcher.exception is not None:
+            if cf.exception is not None:
-                err = self.cover_fetcher.exception
+                err = cf.exception
                 error_dialog(self, _('Cannot fetch cover'),
                     _('<b>Could not fetch cover.</b><br/>')+unicode(err)).exec_()
                 return
-            if self.cover_fetcher.errors and self.cover_fetcher.cover_data is None:
+            if cf.errors and cf.cover_data is None:
-                details = u'\n\n'.join([e[-1] + ': ' + e[1] for e in self.cover_fetcher.errors])
+                details = u'\n\n'.join([e[-1] + ': ' + e[1] for e in cf.errors])
                 error_dialog(self, _('Cannot fetch cover'),
                     _('<b>Could not fetch cover.</b><br/>') +
                     _('For the error message from each cover source, '
@@ -278,7 +280,7 @@ class MetadataSingleDialog(ResizableDialog, Ui_MetadataSingleDialog):
                 return
 
             pix = QPixmap()
-            pix.loadFromData(self.cover_fetcher.cover_data)
+            pix.loadFromData(cf.cover_data)
             if pix.isNull():
                 error_dialog(self, _('Bad cover'),
                              _('The cover is not a valid picture')).exec_()
@@ -287,11 +289,12 @@ class MetadataSingleDialog(ResizableDialog, Ui_MetadataSingleDialog):
                 self.update_cover_tooltip()
                 self.cover_changed = True
                 self.cpixmap = pix
-                self.cover_data = self.cover_fetcher.cover_data
+                self.cover_data = cf.cover_data
         finally:
             self.fetch_cover_button.setEnabled(True)
             self.unsetCursor()
-            self.pi.stop()
+            if self.pi is not None:
+                self.pi.stop()
 
 
     # }}}
@@ -438,8 +441,8 @@ class MetadataSingleDialog(ResizableDialog, Ui_MetadataSingleDialog):
     def __init__(self, window, row, db, prev=None,
             next_=None):
         ResizableDialog.__init__(self, window)
+        self.cover_fetcher = None
         self.bc_box.layout().setAlignment(self.cover, Qt.AlignCenter|Qt.AlignHCenter)
-        self.cancel_all = False
         base = unicode(self.author_sort.toolTip())
         self.ok_aus_tooltip = '<p>' + textwrap.fill(base+'<br><br>'+
                             _(' The green color indicates that the current '
@@ -570,7 +573,6 @@ class MetadataSingleDialog(ResizableDialog, Ui_MetadataSingleDialog):
         QObject.connect(self.series, SIGNAL('editTextChanged(QString)'), self.enable_series_index)
         self.series.lineEdit().editingFinished.connect(self.increment_series_index)
 
-        self.show()
         pm = QPixmap()
         if cover:
             pm.loadFromData(cover)
@@ -590,6 +592,8 @@ class MetadataSingleDialog(ResizableDialog, Ui_MetadataSingleDialog):
         self.original_author = unicode(self.authors.text()).strip()
         self.original_title = unicode(self.title.text()).strip()
 
+        self.show()
+
     def create_custom_column_editors(self):
         w = self.central_widget.widget(1)
         layout = w.layout()
@@ -828,10 +832,6 @@ class MetadataSingleDialog(ResizableDialog, Ui_MetadataSingleDialog):
         self.accept()
 
     def accept(self):
-        cf = getattr(self, 'cover_fetcher', None)
-        if cf is not None and hasattr(cf, 'terminate'):
-            cf.terminate()
-            cf.wait()
         try:
             if self.formats_changed:
                 self.sync_formats()
@@ -888,14 +888,12 @@ class MetadataSingleDialog(ResizableDialog, Ui_MetadataSingleDialog):
                         show=True)
             raise
         self.save_state()
+        self.cover_fetcher = None
         QDialog.accept(self)
 
     def reject(self, *args):
-        cf = getattr(self, 'cover_fetcher', None)
-        if cf is not None and hasattr(cf, 'terminate'):
-            cf.terminate()
-            cf.wait()
         self.save_state()
+        self.cover_fetcher = None
         QDialog.reject(self, *args)
 
     def read_state(self):
@@ -910,3 +908,48 @@ class MetadataSingleDialog(ResizableDialog, Ui_MetadataSingleDialog):
         dynamic.set('metasingle_window_geometry', bytes(self.saveGeometry()))
         dynamic.set('metasingle_splitter_state',
                 bytes(self.splitter.saveState()))
+
+    def break_cycles(self):
+        # Break any reference cycles that could prevent python
+        # from garbage collecting this dialog
+        def disconnect(signal):
+            try:
+                signal.disconnect()
+            except:
+                pass # Fails if view format was never connected
+        disconnect(self.view_format)
+        for b in ('next_button', 'prev_button'):
+            x = getattr(self, b, None)
+            if x is not None:
+                disconnect(x.clicked)
+
+if __name__ == '__main__':
+    from calibre.library import db
+    from PyQt4.Qt import QApplication
+    from calibre.utils.mem import memory
+    import gc
+
+
+    app = QApplication([])
+    db = db()
+
+    # Initialize all Qt Objects once
+    d = MetadataSingleDialog(None, 4, db)
+    d.break_cycles()
+    d.reject()
+    del d
+
+    for i in range(5):
+        gc.collect()
+    before = memory()
+
+    d = MetadataSingleDialog(None, 4, db)
+    d.reject()
+    d.break_cycles()
+    del d
+
+    for i in range(5):
+        gc.collect()
+    print 'Used memory:', memory(before)/1024.**2, 'MB'
+
+

src/calibre/gui2/dialogs/tag_categories.py

@@ -145,7 +145,7 @@ class TagCategories(QDialog, Ui_TagCategories):
             index = self.all_items[node.data(Qt.UserRole).toPyObject()].index
             if index not in self.applied_items:
                 self.applied_items.append(index)
-        self.applied_items.sort(key=lambda x:sort_key(self.all_items[x]))
+        self.applied_items.sort(key=lambda x:sort_key(self.all_items[x].name))
         self.display_filtered_categories(None)
 
     def unapply_tags(self, node=None):

src/calibre/gui2/dialogs/tag_list_editor.py

@@ -105,9 +105,13 @@ class TagListEditor(QDialog, Ui_TagListEditor):
         if not question_dialog(self, _('Are your sure?'),
             '<p>'+_('Are you certain you want to delete the following items?')+'<br>'+ct):
             return
-
+        row = self.available_tags.row(deletes[0])
         for item in deletes:
             (id,ign) = item.data(Qt.UserRole).toInt()
             self.to_delete.append(id)
             self.available_tags.takeItem(self.available_tags.row(item))
 
+        if row >= self.available_tags.count():
+            row = self.available_tags.count() - 1
+        if row >= 0:
+            self.available_tags.scrollToItem(self.available_tags.item(row))

src/calibre/gui2/init.py

@@ -123,6 +123,8 @@ class Stack(QStackedWidget): # {{{
                 _('Tag Browser'), I('tags.png'),
                 parent=parent, side_index=0, initial_side_size=200,
                 shortcut=_('Shift+Alt+T'))
+        parent.tb_splitter.state_changed.connect(
+                        self.tb_widget.set_pane_is_visible, Qt.QueuedConnection)
         parent.tb_splitter.addWidget(self.tb_widget)
         parent.tb_splitter.addWidget(parent.cb_splitter)
         parent.tb_splitter.setCollapsible(parent.tb_splitter.other_index, False)

src/calibre/gui2/preferences/look_feel.py

@@ -5,10 +5,11 @@ __license__   = 'GPL v3'
 __copyright__ = '2010, Kovid Goyal <kovid@kovidgoyal.net>'
 __docformat__ = 'restructuredtext en'
 
+from PyQt4.Qt import QApplication, QFont, QFontInfo, QFontDialog
 
 from calibre.gui2.preferences import ConfigWidgetBase, test_widget
 from calibre.gui2.preferences.look_feel_ui import Ui_Form
-from calibre.gui2 import config, gprefs
+from calibre.gui2 import config, gprefs, qt_app
 from calibre.utils.localization import available_translations, \
     get_language, get_lang
 from calibre.utils.config import prefs
@@ -56,12 +57,64 @@ class ConfigWidget(ConfigWidgetBase, Ui_Form):
             (_('Never'), 'never')]
         r('toolbar_text', gprefs, choices=choices)
 
+        self.current_font = None
+        self.change_font_button.clicked.connect(self.change_font)
+
+
+    def initialize(self):
+        ConfigWidgetBase.initialize(self)
+        self.current_font = gprefs['font']
+        self.update_font_display()
+
+    def restore_defaults(self):
+        ConfigWidgetBase.restore_defaults(self)
+        ofont = self.current_font
+        self.current_font = None
+        if ofont is not None:
+            self.changed_signal.emit()
+            self.update_font_display()
+
+    def build_font_obj(self):
+        font_info = self.current_font
+        if font_info is not None:
+            font = QFont(*font_info)
+        else:
+            font = qt_app.original_font
+        return font
+
+    def update_font_display(self):
+        font = self.build_font_obj()
+        fi = QFontInfo(font)
+        name = unicode(fi.family())
+
+        self.font_display.setFont(font)
+        self.font_display.setText(_('Current font:') + ' ' + name +
+                ' [%dpt]'%fi.pointSize())
+
+    def change_font(self, *args):
+        fd = QFontDialog(self.build_font_obj(), self)
+        if fd.exec_() == fd.Accepted:
+            font = fd.selectedFont()
+            fi = QFontInfo(font)
+            self.current_font = (unicode(fi.family()), fi.pointSize(),
+                    fi.weight(), fi.italic())
+            self.update_font_display()
+            self.changed_signal.emit()
+
+    def commit(self, *args):
+        rr = ConfigWidgetBase.commit(self, *args)
+        if self.current_font != gprefs['font']:
+            gprefs['font'] = self.current_font
+            QApplication.setFont(self.font_display.font())
+            rr = True
+        return rr
+
+
     def refresh_gui(self, gui):
         gui.search.search_as_you_type(config['search_as_you_type'])
-
+        self.update_font_display()
 
 if __name__ == '__main__':
-    from PyQt4.Qt import QApplication
     app = QApplication([])
     test_widget('Interface', 'Look & Feel')
 

src/calibre/gui2/preferences/look_feel.ui

@@ -183,7 +183,7 @@
      </layout>
     </widget>
    </item>
-   <item row="8" column="0" colspan="2">
+   <item row="9" column="0" colspan="2">
     <spacer name="verticalSpacer">
      <property name="orientation">
       <enum>Qt::Vertical</enum>
@@ -196,6 +196,20 @@
      </property>
     </spacer>
    </item>
+   <item row="8" column="0">
+    <widget class="QLineEdit" name="font_display">
+     <property name="readOnly">
+      <bool>true</bool>
+     </property>
+    </widget>
+   </item>
+   <item row="8" column="1">
+    <widget class="QPushButton" name="change_font_button">
+     <property name="text">
+      <string>Change &amp;font (needs restart)</string>
+     </property>
+    </widget>
+   </item>
   </layout>
  </widget>
  <resources/>

src/calibre/gui2/preferences/main.py

@@ -251,10 +251,28 @@ class Preferences(QMainWindow):
         self.close()
         self.run_wizard_requested.emit()
 
+    def set_tooltips_for_labels(self):
+
+        def process_child(child):
+            for g in child.children():
+                if isinstance(g, QLabel):
+                    buddy = g.buddy()
+                    if buddy is not None and hasattr(buddy, 'toolTip'):
+                        htext = unicode(buddy.toolTip()).strip()
+                        etext = unicode(g.toolTip()).strip()
+                        if htext and not etext:
+                            g.setToolTip(htext)
+                            g.setWhatsThis(htext)
+                else:
+                    process_child(g)
+
+        process_child(self.showing_widget)
+
     def show_plugin(self, plugin):
         self.showing_widget = plugin.create_widget(self.scroll_area)
         self.showing_widget.genesis(self.gui)
         self.showing_widget.initialize()
+        self.set_tooltips_for_labels()
         self.scroll_area.setWidget(self.showing_widget)
         self.stack.setCurrentIndex(1)
         self.showing_widget.show()

src/calibre/gui2/tag_view.py

@@ -87,6 +87,13 @@ class TagsView(QTreeView): # {{{
         self.setDragDropMode(self.DropOnly)
         self.setDropIndicatorShown(True)
         self.setAutoExpandDelay(500)
+        self.pane_is_visible = False
+
+    def set_pane_is_visible(self, to_what):
+        pv = self.pane_is_visible
+        self.pane_is_visible = to_what
+        if to_what and not pv:
+            self.recount()
 
     def set_database(self, db, tag_match, sort_by):
         self.hidden_categories = config['tag_browser_hidden_categories']
@@ -300,7 +307,7 @@ class TagsView(QTreeView): # {{{
         return self.isExpanded(idx)
 
     def recount(self, *args):
-        if self.disable_recounting:
+        if self.disable_recounting or not self.pane_is_visible:
             return
         self.refresh_signal_processed = True
         ci = self.currentIndex()
@@ -969,6 +976,7 @@ class TagBrowserWidget(QWidget): # {{{
         self._layout.setContentsMargins(0,0,0,0)
 
         parent.tags_view = TagsView(parent)
+        self.tags_view = parent.tags_view
         self._layout.addWidget(parent.tags_view)
 
         parent.sort_by = QComboBox(parent)
@@ -998,6 +1006,9 @@ class TagBrowserWidget(QWidget): # {{{
                 _('Add your own categories to the Tag Browser'))
         parent.edit_categories.setStatusTip(parent.edit_categories.toolTip())
 
+    def set_pane_is_visible(self, to_what):
+        self.tags_view.set_pane_is_visible(to_what)
+
 
 # }}}
 

src/calibre/library/__init__.py

@@ -19,12 +19,15 @@ def generate_test_db(library_path,
         max_tags=10
         ):
     import random, string, os, sys, time
+    from calibre.constants import preferred_encoding
 
     if not os.path.exists(library_path):
         os.makedirs(library_path)
 
+    letters = string.letters.decode(preferred_encoding)
+
     def randstr(length):
-        return ''.join(random.choice(string.letters) for i in
+        return ''.join(random.choice(letters) for i in
                 xrange(length))
 
     all_tags = [randstr(tag_length) for j in xrange(num_of_tags)]

src/calibre/library/save_to_disk.py

@@ -119,10 +119,8 @@ class SafeFormat(TemplateFormatter):
             try:
                 b = self.book.get_user_metadata(key, False)
             except:
-                if DEBUG:
+                traceback.print_exc()
-                    traceback.print_exc()
                 b = None
-
             if b is not None and b['datatype'] == 'composite':
                 if key in self.composite_values:
                     return self.composite_values[key]
@@ -135,8 +133,7 @@ class SafeFormat(TemplateFormatter):
                 return val.replace('/', '_').replace('\\', '_')
             return ''
         except:
-            if DEBUG:
+            traceback.print_exc()
-                traceback.print_exc()
             return key
 
 def get_components(template, mi, id, timefmt='%b %Y', length=250,
@@ -155,6 +152,8 @@ def get_components(template, mi, id, timefmt='%b %Y', length=250,
         format_args['tags'] = mi.format_tags()
         if format_args['tags'].startswith('/'):
             format_args['tags'] = format_args['tags'][1:]
+    else:
+        format_args['tags'] = ''
     if mi.series:
         format_args['series'] = tsfmt(mi.series)
         if mi.series_index is not None:
@@ -254,6 +253,7 @@ def do_save_book_to_disk(id_, mi, cover, plugboards,
         if not os.path.exists(dirpath):
             raise
 
+    ocover = mi.cover
     if opts.save_cover and cover and os.access(cover, os.R_OK):
         with open(base_path+'.jpg', 'wb') as f:
             with open(cover, 'rb') as s:
@@ -267,6 +267,8 @@ def do_save_book_to_disk(id_, mi, cover, plugboards,
         with open(base_path+'.opf', 'wb') as f:
             f.write(opf)
 
+    mi.cover = ocover
+
     written = False
     for fmt in formats:
         global plugboard_save_to_disk_value, plugboard_any_format_value

src/calibre/utils/mem.py

@@ -0,0 +1,55 @@
+#!/usr/bin/env python
+# vim:fileencoding=UTF-8:ts=4:sw=4:sta:et:sts=4:ai
+
+__license__   = 'GPL v3'
+__copyright__ = '2010, Kovid Goyal <kovid@kovidgoyal.net>'
+__docformat__ = 'restructuredtext en'
+
+## {{{ http://code.activestate.com/recipes/286222/ (r1)
+import os
+
+_proc_status = '/proc/%d/status' % os.getpid()
+
+_scale = {'kB': 1024.0, 'mB': 1024.0*1024.0,
+          'KB': 1024.0, 'MB': 1024.0*1024.0}
+
+def _VmB(VmKey):
+    '''Private.
+    '''
+    global _proc_status, _scale
+     # get pseudo file  /proc/<pid>/status
+    try:
+        t = open(_proc_status)
+        v = t.read()
+        t.close()
+    except:
+        return 0.0  # non-Linux?
+     # get VmKey line e.g. 'VmRSS:  9999  kB\n ...'
+    i = v.index(VmKey)
+    v = v[i:].split(None, 3)  # whitespace
+    if len(v) < 3:
+        return 0.0  # invalid format?
+     # convert Vm value to bytes
+    return float(v[1]) * _scale[v[2]]
+
+
+def memory(since=0.0):
+    '''Return memory usage in bytes.
+    '''
+    return _VmB('VmSize:') - since
+
+
+def resident(since=0.0):
+    '''Return resident memory usage in bytes.
+    '''
+    return _VmB('VmRSS:') - since
+
+
+def stacksize(since=0.0):
+    '''Return stack size in bytes.
+    '''
+    return _VmB('VmStk:') - since
+## end of http://code.activestate.com/recipes/286222/ }}}
+
+
+