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#!/usr/bin/env python
# vim:fileencoding=UTF-8:ts=4:sw=4:sta:et:sts=4:ai
from __future__ import with_statement
__license__ = 'GPL v3'
__copyright__ = '2009, Kovid Goyal <kovid@kovidgoyal.net>'
__docformat__ = 'restructuredtext en'
import os, re
from PyQt4.Qt import QPixmap
from calibre.gui2 import choose_images, error_dialog
from calibre.gui2.convert.metadata_ui import Ui_Form
from calibre.ebooks.metadata import (string_to_authors, MetaInformation,
title_sort)
from calibre.ebooks.metadata.opf2 import metadata_to_opf
from calibre.ptempfile import PersistentTemporaryFile
from calibre.gui2.convert import Widget
from calibre.utils.icu import sort_key
from calibre.library.comments import comments_to_html
from calibre.utils.config import tweaks
def create_opf_file(db, book_id, opf_file=None):
mi = db.get_metadata(book_id, index_is_id=True)
old_cover = mi.cover
mi.cover = None
mi.application_id = mi.uuid
raw = metadata_to_opf(mi)
mi.cover = old_cover
if opf_file is None:
opf_file = PersistentTemporaryFile('.opf')
opf_file.write(raw)
opf_file.close()
return mi, opf_file
def create_cover_file(db, book_id):
cover = db.cover(book_id, index_is_id=True)
cf = None
if cover:
cf = PersistentTemporaryFile('.jpeg')
cf.write(cover)
cf.close()
return cf
class MetadataWidget(Widget, Ui_Form):
TITLE = _('Metadata')
ICON = I('dialog_information.png')
HELP = _('Set the metadata. The output file will contain as much of this '
'metadata as possible.')
COMMIT_NAME = 'metadata'
def __init__(self, parent, get_option, get_help, db=None, book_id=None):
Widget.__init__(self, parent, ['prefer_metadata_cover'])
self.db, self.book_id = db, book_id
self.cover_changed = False
self.cover_data = None
if self.db is not None:
self.initialize_metadata_options()
self.initialize_options(get_option, get_help, db, book_id)
self.cover_button.clicked[()].connect(self.select_cover)
self.comment.hide_toolbars()
self.cover.cover_changed.connect(self.change_cover)
def change_cover(self, data):
self.cover_changed = True
self.cover_data = data
def deduce_author_sort(self, *args):
au = unicode(self.author.currentText())
au = re.sub(r'\s+et al\.$', '', au)
authors = string_to_authors(au)
self.author_sort.setText(self.db.author_sort_from_authors(authors))
def initialize_metadata_options(self):
self.initialize_combos()
self.author.editTextChanged.connect(self.deduce_author_sort)
mi = self.db.get_metadata(self.book_id, index_is_id=True)
self.title.setText(mi.title)
self.publisher.show_initial_value(mi.publisher if mi.publisher else '')
self.author_sort.setText(mi.author_sort if mi.author_sort else '')
self.tags.setText(', '.join(mi.tags if mi.tags else []))
self.tags.update_items_cache(self.db.all_tags())
self.comment.html = comments_to_html(mi.comments) if mi.comments else ''
self.series.show_initial_value(mi.series if mi.series else '')
if mi.series_index is not None:
try:
self.series_index.setValue(mi.series_index)
except:
self.series_index.setValue(1.0)
cover = self.db.cover(self.book_id, index_is_id=True)
if cover:
pm = QPixmap()
pm.loadFromData(cover)
if not pm.isNull():
self.cover.setPixmap(pm)
self.cover_data = cover
self.set_cover_tooltip(pm)
else:
self.cover.setPixmap(QPixmap(I('default_cover.png')))
self.cover.setToolTip(_('This book has no cover'))
for x in ('author', 'series', 'publisher'):
x = getattr(self, x)
x.lineEdit().deselect()
def set_cover_tooltip(self, pm):
tt = _('Cover size: %(width)d x %(height)d pixels') % dict(
width=pm.width(), height=pm.height())
self.cover.setToolTip(tt)
def initialize_combos(self):
self.initalize_authors()
self.initialize_series()
self.initialize_publisher()
def initalize_authors(self):
all_authors = self.db.all_authors()
all_authors.sort(key=lambda x : sort_key(x[1]))
self.author.set_separator('&')
self.author.set_space_before_sep(True)
self.author.set_add_separator(tweaks['authors_completer_append_separator'])
self.author.update_items_cache(self.db.all_author_names())
au = self.db.authors(self.book_id, True)
if not au:
au = _('Unknown')
au = ' & '.join([a.strip().replace('|', ',') for a in au.split(',')])
self.author.show_initial_value(au)
def initialize_series(self):
all_series = self.db.all_series()
all_series.sort(key=lambda x : sort_key(x[1]))
self.series.set_separator(None)
self.series.update_items_cache([x[1] for x in all_series])
def initialize_publisher(self):
all_publishers = self.db.all_publishers()
all_publishers.sort(key=lambda x : sort_key(x[1]))
self.publisher.set_separator(None)
self.publisher.update_items_cache([x[1] for x in all_publishers])
def get_title_and_authors(self):
title = unicode(self.title.text()).strip()
if not title:
title = _('Unknown')
authors = unicode(self.author.text()).strip()
authors = string_to_authors(authors) if authors else [_('Unknown')]
return title, authors
def get_metadata(self):
title, authors = self.get_title_and_authors()
mi = MetaInformation(title, authors)
publisher = unicode(self.publisher.text()).strip()
if publisher:
mi.publisher = publisher
author_sort = unicode(self.author_sort.text()).strip()
if author_sort:
mi.author_sort = author_sort
comments = self.comment.html
if comments:
mi.comments = comments
mi.series_index = float(self.series_index.value())
series = unicode(self.series.currentText()).strip()
if series:
mi.series = series
tags = [t.strip() for t in unicode(self.tags.text()).strip().split(',')]
if tags:
mi.tags = tags
return mi
def select_cover(self):
files = choose_images(self, 'change cover dialog',
_('Choose cover for ') + unicode(self.title.text()))
if not files:
return
_file = files[0]
if _file:
_file = os.path.abspath(_file)
if not os.access(_file, os.R_OK):
d = error_dialog(self.parent(), _('Cannot read'),
_('You do not have permission to read the file: ') + _file)
d.exec_()
return
cf, cover = None, None
try:
cf = open(_file, "rb")
cover = cf.read()
except IOError as e:
d = error_dialog(self.parent(), _('Error reading file'),
_("<p>There was an error reading from file: <br /><b>") + _file + "</b></p><br />"+str(e))
d.exec_()
if cover:
pix = QPixmap()
pix.loadFromData(cover)
if pix.isNull():
d = error_dialog(self.parent(), _('Error reading file'),
_file + _(" is not a valid picture"))
d.exec_()
else:
self.cover_path.setText(_file)
self.set_cover_tooltip(pix)
self.cover.setPixmap(pix)
self.cover_changed = True
self.cpixmap = pix
self.cover_data = cover
def get_recommendations(self):
return {
'prefer_metadata_cover':
bool(self.opt_prefer_metadata_cover.isChecked()),
}
def commit(self, save_defaults=False):
'''
Settings are stored in two attributes: `opf_file` and `cover_file`.
Both may be None. Also returns a recommendation dictionary.
'''
recs = self.commit_options(save_defaults)
self.user_mi = mi = self.get_metadata()
self.cover_file = self.opf_file = None
if self.db is not None:
if mi.title == self.db.title(self.book_id, index_is_id=True):
mi.title_sort = self.db.title_sort(self.book_id, index_is_id=True)
else:
# Regenerate title sort taking into account book language
languages = self.db.languages(self.book_id, index_is_id=True)
if languages:
lang = languages.split(',')[0]
else:
lang = None
mi.title_sort = title_sort(mi.title, lang=lang)
self.db.set_metadata(self.book_id, self.user_mi)
self.mi, self.opf_file = create_opf_file(self.db, self.book_id)
if self.cover_changed and self.cover_data is not None:
self.db.set_cover(self.book_id, self.cover_data)
cover = self.db.cover(self.book_id, index_is_id=True)
if cover:
cf = PersistentTemporaryFile('.jpeg')
cf.write(cover)
cf.close()
self.cover_file = cf
return recs
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