# -*- coding: utf-8 -*- # vim: autoindent shiftwidth=4 expandtab textwidth=80 tabstop=4 softtabstop=4 ############################################################################### # OpenLP - Open Source Lyrics Projection # # --------------------------------------------------------------------------- # # Copyright (c) 2008-2012 Raoul Snyman # # Portions copyright (c) 2008-2012 Tim Bentley, Gerald Britton, Jonathan # # Corwin, Samuel Findlay, Michael Gorven, Scott Guerrieri, Matthias Hub, # # Meinert Jordan, Armin Köhler, Edwin Lunando, Joshua Miller, Stevan Pettit, # # Andreas Preikschat, Mattias Põldaru, Christian Richter, Philip Ridout, # # Simon Scudder, Jeffrey Smith, Maikel Stuivenberg, Martin Thompson, Jon # # Tibble, Dave Warnock, Frode Woldsund # # --------------------------------------------------------------------------- # # 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 # ############################################################################### from PyQt4 import QtGui, QtCore from openlp.core.lib import translate from openlp.plugins.alerts.lib.db import AlertItem from alertdialog import Ui_AlertDialog class AlertForm(QtGui.QDialog, Ui_AlertDialog): """ Provide UI for the alert system """ def __init__(self, plugin): """ Initialise the alert form """ self.manager = plugin.manager self.plugin = plugin self.item_id = None QtGui.QDialog.__init__(self, plugin.formParent) self.setupUi(self) QtCore.QObject.connect(self.displayButton, QtCore.SIGNAL(u'clicked()'), self.onDisplayClicked) QtCore.QObject.connect(self.displayCloseButton, QtCore.SIGNAL(u'clicked()'), self.onDisplayCloseClicked) QtCore.QObject.connect(self.alertTextEdit, QtCore.SIGNAL(u'textChanged(const QString&)'), self.onTextChanged) QtCore.QObject.connect(self.newButton, QtCore.SIGNAL(u'clicked()'), self.onNewClick) QtCore.QObject.connect(self.saveButton, QtCore.SIGNAL(u'clicked()'), self.onSaveClick) QtCore.QObject.connect(self.alertListWidget, QtCore.SIGNAL(u'doubleClicked(QModelIndex)'), self.onDoubleClick) QtCore.QObject.connect(self.alertListWidget, QtCore.SIGNAL(u'clicked(QModelIndex)'), self.onSingleClick) QtCore.QObject.connect(self.alertListWidget, QtCore.SIGNAL(u'currentRowChanged(int)'), self.onCurrentRowChanged) def exec_(self): self.displayButton.setEnabled(False) self.displayCloseButton.setEnabled(False) self.alertTextEdit.setText(u'') return QtGui.QDialog.exec_(self) def loadList(self): """ Loads the list with alerts. """ self.alertListWidget.clear() alerts = self.manager.get_all_objects(AlertItem, order_by_ref=AlertItem.text) for alert in alerts: item_name = QtGui.QListWidgetItem(alert.text) item_name.setData(QtCore.Qt.UserRole, QtCore.QVariant(alert.id)) self.alertListWidget.addItem(item_name) def onDisplayClicked(self): self.triggerAlert(unicode(self.alertTextEdit.text())) def onDisplayCloseClicked(self): if self.triggerAlert(unicode(self.alertTextEdit.text())): self.close() def onDeleteButtonClicked(self): """ Deletes the selected item. """ item = self.alertListWidget.currentItem() if item: item_id = (item.data(QtCore.Qt.UserRole)).toInt()[0] self.manager.delete_object(AlertItem, item_id) row = self.alertListWidget.row(item) self.alertListWidget.takeItem(row) self.item_id = None self.alertTextEdit.setText(u'') def onNewClick(self): if not self.alertTextEdit.text(): QtGui.QMessageBox.information(self, translate('AlertsPlugin.AlertForm', 'New Alert'), translate('AlertsPlugin.AlertForm', 'You haven\'t specified ' 'any text for your alert. Please type in some text before ' 'clicking New.')) else: alert = AlertItem() alert.text = unicode(self.alertTextEdit.text()) self.manager.save_object(alert) self.alertTextEdit.setText(u'') self.loadList() def onSaveClick(self): """ Save the alert, we are editing. """ if self.item_id: alert = self.manager.get_object(AlertItem, self.item_id) alert.text = unicode(self.alertTextEdit.text()) self.manager.save_object(alert) self.item_id = None self.loadList() def onTextChanged(self): """ Enable save button when data has been changed by editing the form """ # Only enable the button, if we are editing an item. if self.item_id: self.saveButton.setEnabled(True) if self.alertTextEdit.text(): self.displayButton.setEnabled(True) self.displayCloseButton.setEnabled(True) else: self.displayButton.setEnabled(False) self.displayCloseButton.setEnabled(False) def onDoubleClick(self): """ List item has been double clicked to display it """ item = self.alertListWidget.selectedIndexes()[0] bitem = self.alertListWidget.item(item.row()) self.triggerAlert(unicode(bitem.text())) self.alertTextEdit.setText(unicode(bitem.text())) self.item_id = (bitem.data(QtCore.Qt.UserRole)).toInt()[0] self.saveButton.setEnabled(False) def onSingleClick(self): """ List item has been single clicked to add it to the edit field so it can be changed. """ item = self.alertListWidget.selectedIndexes()[0] bitem = self.alertListWidget.item(item.row()) self.alertTextEdit.setText(unicode(bitem.text())) self.item_id = (bitem.data(QtCore.Qt.UserRole)).toInt()[0] # If the alert does not contain '<>' we clear the ParameterEdit field. if unicode(self.alertTextEdit.text()).find(u'<>') == -1: self.parameterEdit.setText(u'') self.saveButton.setEnabled(False) def triggerAlert(self, text): """ Prepares the alert text for displaying. ``text`` The alert text (unicode). """ if not text: return False # We found '<>' in the alert text, but the ParameterEdit field is empty. if text.find(u'<>') != -1 and not self.parameterEdit.text() and \ QtGui.QMessageBox.question(self, translate('AlertsPlugin.AlertForm', 'No Parameter Found'), translate('AlertsPlugin.AlertForm', 'You have not entered a ' 'parameter to be replaced.\nDo you want to continue anyway?'), QtGui.QMessageBox.StandardButtons(QtGui.QMessageBox.No | QtGui.QMessageBox.Yes)) == QtGui.QMessageBox.No: self.parameterEdit.setFocus() return False # The ParameterEdit field is not empty, but we have not found '<>' # in the alert text. elif text.find(u'<>') == -1 and self.parameterEdit.text() and \ QtGui.QMessageBox.question(self, translate('AlertsPlugin.AlertForm', 'No Placeholder Found'), translate('AlertsPlugin.AlertForm', 'The alert text does not' ' contain \'<>\'.\nDo you want to continue anyway?'), QtGui.QMessageBox.StandardButtons(QtGui.QMessageBox.No | QtGui.QMessageBox.Yes)) == QtGui.QMessageBox.No: self.parameterEdit.setFocus() return False text = text.replace(u'<>', unicode(self.parameterEdit.text())) self.plugin.alertsmanager.displayAlert(text) return True def onCurrentRowChanged(self, row): """ Called when the *alertListWidget*'s current row has been changed. This enables or disables buttons which require an item to act on. ``row`` The row (int). If there is no current row, the value is -1. """ if row == -1: self.displayButton.setEnabled(False) self.displayCloseButton.setEnabled(False) self.saveButton.setEnabled(False) self.deleteButton.setEnabled(False) else: self.displayButton.setEnabled(True) self.displayCloseButton.setEnabled(True) self.deleteButton.setEnabled(True) # We do not need to enable the save button, as it is only enabled # when typing text in the "alertTextEdit".