Current File : //lib/calibre/calibre/gui2/languages.py
#!/usr/bin/env python3
__license__ = 'GPL v3'
__copyright__ = '2011, Kovid Goyal <kovid@kovidgoyal.net>'
__docformat__ = 'restructuredtext en'
from qt.core import QComboBox
from calibre.gui2 import gui_prefs
from calibre.gui2.complete2 import EditWithComplete
from calibre.utils.localization import lang_map_for_ui
from calibre.utils.icu import sort_key, lower
from polyglot.builtins import iteritems, itervalues
class LanguagesEdit(EditWithComplete):
def __init__(self, parent=None, db=None, prefs=None):
self.prefs = prefs or gui_prefs()
self.refresh_recently_used()
EditWithComplete.__init__(self, parent, sort_func=self.sort_language_items_key)
self.setSizeAdjustPolicy(QComboBox.SizeAdjustPolicy.AdjustToMinimumContentsLengthWithIcon)
self.setMinimumContentsLength(20)
self._lang_map = lang_map_for_ui()
self.names_with_commas = [x for x in itervalues(self._lang_map) if ',' in x]
self.comma_map = {k:k.replace(',', '|') for k in self.names_with_commas}
self.comma_rmap = {v:k for k, v in iteritems(self.comma_map)}
self._rmap = {lower(v):k for k,v in iteritems(self._lang_map)}
self.init_langs(db)
self.item_selected.connect(self.update_recently_used)
def init_langs(self, db):
self.update_items_cache(itervalues(self._lang_map))
def refresh_recently_used(self):
recently_used = self.prefs.get('recently_used_languages') or ()
self.recently_used = {x:i for i, x in enumerate(recently_used) if x}
def update_recently_used(self):
recently_used = self.prefs.get('recently_used_languages') or []
vals = self.vals
for x in vals:
if x:
if x in recently_used:
recently_used.remove(x)
recently_used.insert(0, x)
self.prefs.set('recently_used_languages', recently_used[:5])
def sort_language_items_key(self, val):
idx = self.recently_used.get(val, 100000)
return (idx, sort_key(val))
@property
def vals(self):
raw = str(self.lineEdit().text())
for k, v in iteritems(self.comma_map):
raw = raw.replace(k, v)
parts = [x.strip() for x in raw.split(',')]
return [self.comma_rmap.get(x, x) for x in parts]
@property
def lang_codes(self):
vals = self.vals
ans = []
for name in vals:
if name:
code = self._rmap.get(lower(name), None)
if code is not None:
ans.append(code)
return ans
@lang_codes.setter
def lang_codes(self, lang_codes):
self.set_lang_codes(lang_codes, allow_undo=False)
def set_lang_codes(self, lang_codes, allow_undo=True):
ans = []
for lc in lang_codes:
name = self._lang_map.get(lc, None)
if name is not None:
ans.append(name)
ans = ', '.join(ans)
if allow_undo:
orig, self.disable_popup = self.disable_popup, True
try:
self.lineEdit().selectAll(), self.lineEdit().insert(ans)
finally:
self.disable_popup = orig
else:
self.setEditText(ans)
def validate(self):
vals = self.vals
bad = []
for name in vals:
if name:
code = self._rmap.get(lower(name), None)
if code is None:
bad.append(name)
return bad
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