def __init__(self, parent, delimiters, entries, entries_updater):
super(QDelimitedCompleter, self).__init__(parent)
self.delimiters = delimiters
if isinstance(parent, QtWidgets.QLineEdit):
self.text_getter = parent.text
self.cursor_pos = parent.cursorPosition
self.insert_text = parent.insert
parent.textChanged[str].connect(self.text_changed)
self.completionNeeded.connect(self.complete)
elif isinstance(parent, QtWidgets.QTextEdit):
parent.textChanged.connect(self.text_changed)
self.cursor_pos = lambda: parent.textCursor().position()
self.insert_text =\
lambda text: parent.textCursor().insertText(text)
self.text_getter = parent.toPlainText
self.completionNeeded.connect(self._text_edit_complete)
else:
msg = 'Parent of QtCompleter must QLineEdit or QTextEdit, not {}'
raise ValueError(msg.format(parent))
self.setCaseSensitivity(QtCore.Qt.CaseSensitive)
self.setModel(QtCore.QStringListModel(entries, self))
self.activated[str].connect(self.complete_text)
self.setWidget(parent)
self._upddate_entries = True
self._popup_active = False
self.entries_updater = entries_updater
def text_changed(self, text=None):
"""Callback handling the text being edited on the parent.
"""
if not text:
text = self.text_getter()
if self._upddate_entries and self.entries_updater:
entries = self.entries_updater()
self.setModel(QtCore.QStringListModel(entries, self))
self._upddate_entries = False
all_text = uni(text)
text = all_text[:self.cursor_pos()]
split = text.split(self.delimiters[0])
prefix = split[-1].strip()
if len(split) > 1:
self.setCompletionPrefix(prefix)
self.completionNeeded.emit()
elif self.popup().isVisible():
self.popup().hide()
def _update_entries(self, entries):
"""Update the completer completion model.
"""
self.setModel(QtCore.QStringListModel(entries))
