# -*- coding: utf-8 -*-
# vim: autoindent shiftwidth=4 expandtab textwidth=120 tabstop=4 softtabstop=4
###############################################################################
# OpenLP - Open Source Lyrics Projection #
# --------------------------------------------------------------------------- #
# Copyright (c) 2008-2016 OpenLP Developers #
# --------------------------------------------------------------------------- #
# This program is free software; you can redistribute it and/or modify it #
# under the terms of the GNU General Public License as published by the Free #
# Software Foundation; version 2 of the License. #
# #
# This program is distributed in the hope that it will be useful, but WITHOUT #
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or #
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for #
# more details. #
# #
# You should have received a copy of the GNU General Public License along #
# with this program; if not, write to the Free Software Foundation, Inc., 59 #
# Temple Place, Suite 330, Boston, MA 02111-1307 USA #
###############################################################################
"""
The :mod:`~openlp.core.common.historycombobox` module contains the HistoryComboBox widget
"""
from PyQt5 import QtCore, QtWidgets
[docs]class HistoryComboBox(QtWidgets.QComboBox):
"""
The :class:`~openlp.core.common.historycombobox.HistoryComboBox` widget emulates the QLineEdit ``returnPressed``
signal for when the :kbd:`Enter` or :kbd:`Return` keys are pressed, and saves anything that is typed into the edit
box into its list.
"""
returnPressed = QtCore.pyqtSignal()
def __init__(self, parent=None):
"""
Initialise the combo box, setting duplicates to False and the insert policy to insert items at the top.
:param parent: The parent widget
"""
super().__init__(parent)
self.setDuplicatesEnabled(False)
self.setEditable(True)
self.setSizePolicy(QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Preferred)
self.setInsertPolicy(QtWidgets.QComboBox.InsertAtTop)
[docs] def keyPressEvent(self, event):
"""
Override the inherited keyPressEvent method to emit the ``returnPressed`` signal and to save the current text to
the dropdown list.
:param event: The keyboard event
"""
# Handle Enter and Return ourselves
if event.key() == QtCore.Qt.Key_Enter or event.key() == QtCore.Qt.Key_Return:
# Emit the returnPressed signal
self.returnPressed.emit()
# Save the current text to the dropdown list
if self.currentText() and self.findText(self.currentText()) == -1:
self.insertItem(0, self.currentText())
# Let the parent handle any keypress events
super().keyPressEvent(event)
[docs] def focusOutEvent(self, event):
"""
Override the inherited focusOutEvent to save the current text to the dropdown list.
:param event: The focus event
"""
# Save the current text to the dropdown list
if self.currentText() and self.findText(self.currentText()) == -1:
self.insertItem(0, self.currentText())
# Let the parent handle any keypress events
super().focusOutEvent(event)
[docs] def getItems(self):
"""
Get all the items from the history
:return: A list of strings
"""
return [self.itemText(i) for i in range(self.count())]