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src/calibre/gui2/metadata/config.py

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+#!/usr/bin/env python
+# vim:fileencoding=UTF-8:ts=4:sw=4:sta:et:sts=4:ai
+from __future__ import (unicode_literals, division, absolute_import,
+                        print_function)
+
+__license__   = 'GPL v3'
+__copyright__ = '2011, Kovid Goyal <kovid@kovidgoyal.net>'
+__docformat__ = 'restructuredtext en'
+
+
+from PyQt4.Qt import (QWidget, QGridLayout, QGroupBox, QListView, Qt)
+from calibre.gui2.preferences.metadata_sources import FieldsModel as FM
+
+class FieldsModel(FM): # {{{
+
+    def __init__(self, plugin):
+        FM.__init__(self)
+        self.plugin = plugin
+        self.exclude = frozenset(['title', 'authors']) | self.exclude
+        self.prefs = self.plugin.prefs
+
+    def initialize(self):
+        fields = self.plugin.touched_fields
+        self.fields = []
+        for x in fields:
+            if not x.startswith('identifier:') and x not in self.exclude:
+                self.fields.append(x)
+        self.fields.sort(key=lambda x:self.descs.get(x, x))
+        self.reset()
+
+    def state(self, field, defaults=False):
+        src = self.prefs.defaults if defaults else self.prefs
+        return (Qt.Unchecked if field in src['ignore_fields']
+                    else Qt.Checked)
+
+    def restore_defaults(self):
+        self.overrides = dict([(f, self.state(f, True)) for f in self.fields])
+        self.reset()
+
+    def commit(self):
+        val = [k for k, v in self.overrides.iteritems() if v == Qt.Unchecked]
+        self.prefs['ignore_fields'] = val
+
+# }}}
+
+class ConfigWidget(QWidget):
+
+    def __init__(self, plugin):
+        QWidget.__init__(self)
+        self.plugin = plugin
+
+        self.l = l = QGridLayout()
+        self.setLayout(l)
+
+        self.gb = QGroupBox(_('Downloaded metadata fields'), self)
+        l.addWidget(self.gb, 0, 0)
+        self.gb.l = QGridLayout()
+        self.gb.setLayout(self.gb.l)
+        self.fields_view = v = QListView(self)
+        self.gb.l.addWidget(v, 0, 0)
+        v.setFlow(v.LeftToRight)
+        v.setWrapping(True)
+        v.setResizeMode(v.Adjust)
+        self.fields_model = FieldsModel(self.plugin)
+        self.fields_model.initialize()
+        v.setModel(self.fields_model)
+
+    def commit(self):
+        self.fields_model.commit()
+