def customize_remove_unused_css(name, parent, ans): d = QDialog(parent) d.l = l = QVBoxLayout() d.setLayout(d.l) d.setWindowTitle(_('Remove unused CSS')) def label(text): la = QLabel(text) la.setWordWrap(True), l.addWidget(la), la.setMinimumWidth(450) l.addWidget(la) return la d.la = label(_( 'This will remove all CSS rules that do not match any actual content.' ' There are a couple of additional cleanups you can enable, below:')) d.c = c = QCheckBox(_('Remove unused &class attributes')) c.setChecked(tprefs['remove_unused_classes']) l.addWidget(c) d.la2 = label('<span style="font-size:small; font-style: italic">' + _( 'Remove all class attributes from the HTML that do not match any existing CSS rules')) d.m = m = QCheckBox(_('Merge identical CSS rules')) m.setChecked(tprefs['merge_identical_selectors']) l.addWidget(m) d.la3 = label('<span style="font-size:small; font-style: italic">' + _( 'Merge CSS rules in the same stylesheet that have identical selectors.' ' Note that in rare cases merging can result in a change to the effective styling' ' of the book, so use with care.')) d.bb = QDialogButtonBox(QDialogButtonBox.Ok | QDialogButtonBox.Cancel) d.l.addWidget(d.bb) d.bb.rejected.connect(d.reject) d.bb.accepted.connect(d.accept) if d.exec_() != d.Accepted: raise Abort() ans['remove_unused_classes'] = tprefs['remove_unused_classes'] = c.isChecked() ans['merge_identical_selectors'] = tprefs['merge_identical_selectors'] = m.isChecked()