openlp/openlp/core/ui/wizard.py
2011-01-13 17:55:29 +00:00

172 lines
6.9 KiB
Python

# -*- coding: utf-8 -*-
# vim: autoindent shiftwidth=4 expandtab textwidth=80 tabstop=4 softtabstop=4
###############################################################################
# OpenLP - Open Source Lyrics Projection #
# --------------------------------------------------------------------------- #
# Copyright (c) 2008-2011 Raoul Snyman #
# Portions copyright (c) 2008-2011 Tim Bentley, Jonathan Corwin, Michael #
# Gorven, Scott Guerrieri, Meinert Jordan, Andreas Preikschat, Christian #
# Richter, Philip Ridout, Maikel Stuivenberg, Martin Thompson, Jon Tibble, #
# Carsten Tinggaard, 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 #
###############################################################################
"""
The :mod:``wizard`` module provides generic wizard tools for OpenLP.
"""
import logging
from PyQt4 import QtCore, QtGui
from openlp.core.lib import build_icon, Receiver
log = logging.getLogger(__name__)
class OpenLPWizard(QtGui.QWizard):
"""
Generic OpenLP wizard to provide generic functionality and a unified look
and feel.
"""
def __init__(self, parent, plugin, name, image):
QtGui.QWizard.__init__(self, parent)
self.setObjectName(name)
self.openIcon = build_icon(u':/general/general_open.png')
self.deleteIcon = build_icon(u':/general/general_delete.png')
self.finishButton = self.button(QtGui.QWizard.FinishButton)
self.cancelButton = self.button(QtGui.QWizard.CancelButton)
self.setupUi(image)
self.registerFields()
self.plugin = plugin
self.customInit()
self.customSignals()
QtCore.QObject.connect(self, QtCore.SIGNAL(u'currentIdChanged(int)'),
self.onCurrentIdChanged)
def setupUi(self, image):
"""
Set up the wizard UI
"""
self.setModal(True)
self.setWizardStyle(QtGui.QWizard.ModernStyle)
self.setOptions(QtGui.QWizard.IndependentPages |
QtGui.QWizard.NoBackButtonOnStartPage |
QtGui.QWizard.NoBackButtonOnLastPage)
self.addWelcomePage(image)
self.addCustomPages()
self.addProgressPage()
self.retranslateUi()
QtCore.QMetaObject.connectSlotsByName(self)
def addWelcomePage(self, image):
"""
Add the opening welcome page to the wizard.
``image``
A splash image for the wizard
"""
self.welcomePage = QtGui.QWizardPage()
self.welcomePage.setPixmap(QtGui.QWizard.WatermarkPixmap,
QtGui.QPixmap(image))
self.welcomePage.setObjectName(u'WelcomePage')
self.welcomeLayout = QtGui.QVBoxLayout(self.welcomePage)
self.welcomeLayout.setObjectName(u'WelcomeLayout')
self.titleLabel = QtGui.QLabel(self.welcomePage)
self.titleLabel.setObjectName(u'TitleLabel')
self.welcomeLayout.addWidget(self.titleLabel)
self.welcomeLayout.addSpacing(40)
self.informationLabel = QtGui.QLabel(self.welcomePage)
self.informationLabel.setWordWrap(True)
self.informationLabel.setObjectName(u'InformationLabel')
self.welcomeLayout.addWidget(self.informationLabel)
self.welcomeLayout.addStretch()
self.addPage(self.welcomePage)
def addProgressPage(self):
"""
Add the progress page for the wizard. This page informs the user how
the wizard is progressing with its task.
"""
self.progressPage = QtGui.QWizardPage()
self.progressPage.setObjectName(u'progressPage')
self.progressLayout = QtGui.QVBoxLayout(self.progressPage)
self.progressLayout.setMargin(48)
self.progressLayout.setObjectName(u'progressLayout')
self.progressLabel = QtGui.QLabel(self.progressPage)
self.progressLabel.setObjectName(u'progressLabel')
self.progressLayout.addWidget(self.progressLabel)
self.progressBar = QtGui.QProgressBar(self.progressPage)
self.progressBar.setObjectName(u'progressBar')
self.progressLayout.addWidget(self.progressBar)
self.addPage(self.progressPage)
def exec_(self):
"""
Run the wizard.
"""
self.setDefaults()
return QtGui.QWizard.exec_(self)
def reject(self):
"""
Stop the wizard on cancel button, close button or ESC key.
"""
log.debug(u'Wizard cancelled by user.')
if self.currentPage() == self.progressPage:
Receiver.send_message(u'openlp_stop_wizard')
self.done(QtGui.QDialog.Rejected)
def onCurrentIdChanged(self, pageId):
"""
Perform necessary functions depending on which wizard page is active.
"""
if self.page(pageId) == self.progressPage:
self.preWizard()
self.performWizard()
self.postWizard()
def incrementProgressBar(self, status_text, increment=1):
"""
Update the wizard progress page.
``status_text``
Current status information to display.
``increment``
The value to increment the progress bar by.
"""
log.debug(u'IncrementBar %s', status_text)
self.progressLabel.setText(status_text)
if increment > 0:
self.progressBar.setValue(self.progressBar.value() + increment)
Receiver.send_message(u'openlp_process_events')
def preWizard(self):
"""
Prepare the UI for the import.
"""
self.finishButton.setVisible(False)
self.progressBar.setMinimum(0)
self.progressBar.setMaximum(1188)
self.progressBar.setValue(0)
def postWizard(self):
"""
Clean up the UI after the import has finished.
"""
self.progressBar.setValue(self.progressBar.maximum())
self.finishButton.setVisible(True)
self.cancelButton.setVisible(False)
Receiver.send_message(u'openlp_process_events')