forked from openlp/openlp
226 lines
9.8 KiB
Python
226 lines
9.8 KiB
Python
# -*- coding: utf-8 -*-
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# vim: autoindent shiftwidth=4 expandtab textwidth=80 tabstop=4 softtabstop=4
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###############################################################################
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# OpenLP - Open Source Lyrics Projection #
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# --------------------------------------------------------------------------- #
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# Copyright (c) 2008-2014 Raoul Snyman #
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# Portions copyright (c) 2008-2014 Tim Bentley, Gerald Britton, Jonathan #
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# Corwin, Samuel Findlay, Michael Gorven, Scott Guerrieri, Matthias Hub, #
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# Meinert Jordan, Armin Köhler, Erik Lundin, Edwin Lunando, Brian T. Meyer. #
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# Joshua Miller, Stevan Pettit, Andreas Preikschat, Mattias Põldaru, #
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# Christian Richter, Philip Ridout, Simon Scudder, Jeffrey Smith, #
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# Maikel Stuivenberg, Martin Thompson, Jon Tibble, Dave Warnock, #
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# Frode Woldsund, Martin Zibricky #
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# --------------------------------------------------------------------------- #
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# This program is free software; you can redistribute it and/or modify it #
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# under the terms of the GNU General Public License as published by the Free #
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# Software Foundation; version 2 of the License. #
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# #
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# This program is distributed in the hope that it will be useful, but WITHOUT #
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or #
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# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for #
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# more details. #
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# #
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# You should have received a copy of the GNU General Public License along #
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# with this program; if not, write to the Free Software Foundation, Inc., 59 #
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# Temple Place, Suite 330, Boston, MA 02111-1307 USA #
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###############################################################################
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from PyQt4 import QtGui, QtCore
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from openlp.core.lib import translate
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from openlp.plugins.alerts.lib.db import AlertItem
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from alertdialog import Ui_AlertDialog
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class AlertForm(QtGui.QDialog, Ui_AlertDialog):
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"""
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Provide UI for the alert system
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"""
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def __init__(self, plugin):
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"""
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Initialise the alert form
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"""
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self.manager = plugin.manager
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self.plugin = plugin
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self.item_id = None
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QtGui.QDialog.__init__(self, plugin.formParent)
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self.setupUi(self)
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QtCore.QObject.connect(self.displayButton,
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QtCore.SIGNAL(u'clicked()'), self.onDisplayClicked)
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QtCore.QObject.connect(self.displayCloseButton,
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QtCore.SIGNAL(u'clicked()'), self.onDisplayCloseClicked)
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QtCore.QObject.connect(self.alertTextEdit,
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QtCore.SIGNAL(u'textChanged(const QString&)'), self.onTextChanged)
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QtCore.QObject.connect(self.newButton,
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QtCore.SIGNAL(u'clicked()'), self.onNewClick)
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QtCore.QObject.connect(self.saveButton,
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QtCore.SIGNAL(u'clicked()'), self.onSaveClick)
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QtCore.QObject.connect(self.alertListWidget,
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QtCore.SIGNAL(u'doubleClicked(QModelIndex)'), self.onDoubleClick)
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QtCore.QObject.connect(self.alertListWidget,
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QtCore.SIGNAL(u'clicked(QModelIndex)'), self.onSingleClick)
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QtCore.QObject.connect(self.alertListWidget,
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QtCore.SIGNAL(u'currentRowChanged(int)'), self.onCurrentRowChanged)
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def exec_(self):
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self.displayButton.setEnabled(False)
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self.displayCloseButton.setEnabled(False)
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self.alertTextEdit.setText(u'')
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return QtGui.QDialog.exec_(self)
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def loadList(self):
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"""
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Loads the list with alerts.
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"""
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self.alertListWidget.clear()
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alerts = self.manager.get_all_objects(AlertItem,
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order_by_ref=AlertItem.text)
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for alert in alerts:
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item_name = QtGui.QListWidgetItem(alert.text)
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item_name.setData(QtCore.Qt.UserRole, QtCore.QVariant(alert.id))
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self.alertListWidget.addItem(item_name)
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if alert.text == unicode(self.alertTextEdit.text()):
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self.item_id = alert.id
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self.alertListWidget.setCurrentRow(
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self.alertListWidget.row(item_name))
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def onDisplayClicked(self):
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self.triggerAlert(unicode(self.alertTextEdit.text()))
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def onDisplayCloseClicked(self):
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if self.triggerAlert(unicode(self.alertTextEdit.text())):
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self.close()
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def onDeleteButtonClicked(self):
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"""
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Deletes the selected item.
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"""
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item = self.alertListWidget.currentItem()
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if item:
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item_id = (item.data(QtCore.Qt.UserRole)).toInt()[0]
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self.manager.delete_object(AlertItem, item_id)
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row = self.alertListWidget.row(item)
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self.alertListWidget.takeItem(row)
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self.item_id = None
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self.alertTextEdit.setText(u'')
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def onNewClick(self):
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if not self.alertTextEdit.text():
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QtGui.QMessageBox.information(self,
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translate('AlertsPlugin.AlertForm', 'New Alert'),
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translate('AlertsPlugin.AlertForm', 'You haven\'t specified '
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'any text for your alert. Please type in some text before '
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'clicking New.'))
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else:
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alert = AlertItem()
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alert.text = unicode(self.alertTextEdit.text())
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self.manager.save_object(alert)
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self.loadList()
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def onSaveClick(self):
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"""
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Save the alert, we are editing.
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"""
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if self.item_id:
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alert = self.manager.get_object(AlertItem, self.item_id)
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alert.text = unicode(self.alertTextEdit.text())
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self.manager.save_object(alert)
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self.item_id = None
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self.loadList()
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self.saveButton.setEnabled(False)
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def onTextChanged(self):
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"""
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Enable save button when data has been changed by editing the form
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"""
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# Only enable the button, if we are editing an item.
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if self.item_id:
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self.saveButton.setEnabled(True)
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if self.alertTextEdit.text():
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self.displayButton.setEnabled(True)
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self.displayCloseButton.setEnabled(True)
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else:
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self.displayButton.setEnabled(False)
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self.displayCloseButton.setEnabled(False)
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def onDoubleClick(self):
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"""
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List item has been double clicked to display it
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"""
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item = self.alertListWidget.selectedIndexes()[0]
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bitem = self.alertListWidget.item(item.row())
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self.triggerAlert(unicode(bitem.text()))
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self.alertTextEdit.setText(unicode(bitem.text()))
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self.item_id = (bitem.data(QtCore.Qt.UserRole)).toInt()[0]
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self.saveButton.setEnabled(False)
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def onSingleClick(self):
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"""
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List item has been single clicked to add it to
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the edit field so it can be changed.
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"""
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item = self.alertListWidget.selectedIndexes()[0]
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bitem = self.alertListWidget.item(item.row())
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self.alertTextEdit.setText(unicode(bitem.text()))
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self.item_id = (bitem.data(QtCore.Qt.UserRole)).toInt()[0]
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# If the alert does not contain '<>' we clear the ParameterEdit field.
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if unicode(self.alertTextEdit.text()).find(u'<>') == -1:
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self.parameterEdit.setText(u'')
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self.saveButton.setEnabled(False)
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def triggerAlert(self, text):
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"""
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Prepares the alert text for displaying.
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``text``
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The alert text (unicode).
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"""
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if not text:
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return False
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# We found '<>' in the alert text, but the ParameterEdit field is empty.
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if text.find(u'<>') != -1 and not self.parameterEdit.text() and \
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QtGui.QMessageBox.question(self,
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translate('AlertsPlugin.AlertForm', 'No Parameter Found'),
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translate('AlertsPlugin.AlertForm', 'You have not entered a '
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'parameter to be replaced.\nDo you want to continue anyway?'),
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QtGui.QMessageBox.StandardButtons(QtGui.QMessageBox.No |
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QtGui.QMessageBox.Yes)) == QtGui.QMessageBox.No:
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self.parameterEdit.setFocus()
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return False
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# The ParameterEdit field is not empty, but we have not found '<>'
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# in the alert text.
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elif text.find(u'<>') == -1 and self.parameterEdit.text() and \
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QtGui.QMessageBox.question(self,
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translate('AlertsPlugin.AlertForm', 'No Placeholder Found'),
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translate('AlertsPlugin.AlertForm', 'The alert text does not'
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' contain \'<>\'.\nDo you want to continue anyway?'),
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QtGui.QMessageBox.StandardButtons(QtGui.QMessageBox.No |
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QtGui.QMessageBox.Yes)) == QtGui.QMessageBox.No:
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self.parameterEdit.setFocus()
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return False
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text = text.replace(u'<>', unicode(self.parameterEdit.text()))
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self.plugin.alertsmanager.displayAlert(text)
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return True
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def onCurrentRowChanged(self, row):
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"""
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Called when the *alertListWidget*'s current row has been changed. This
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enables or disables buttons which require an item to act on.
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``row``
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The row (int). If there is no current row, the value is -1.
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"""
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if row == -1:
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self.displayButton.setEnabled(False)
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self.displayCloseButton.setEnabled(False)
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self.saveButton.setEnabled(False)
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self.deleteButton.setEnabled(False)
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else:
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self.displayButton.setEnabled(True)
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self.displayCloseButton.setEnabled(True)
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self.deleteButton.setEnabled(True)
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# We do not need to enable the save button, as it is only enabled
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# when typing text in the "alertTextEdit".
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