helpform.py

#!/usr/bin/env python
# Copyright (c) 2007-8 Qtrac Ltd. All rights reserved.
# This program or module 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, either version 2 of the License, or
# version 3 of the License, or (at your option) any later version. It is
# provided for educational purposes and 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.

from PyQt4.QtCore import *
from PyQt4.QtGui import *
import qrc_resources


class HelpForm(QDialog):

    def __init__(self, page, parent=None):
		print 'In init of HelpForm'
		super(HelpForm, self).__init__(parent)
		self.setAttribute(Qt.WA_DeleteOnClose)
		self.setAttribute(Qt.WA_GroupLeader)

		backAction = QAction(QIcon(":/back.png"), "&Back", self)
		backAction.setShortcut(QKeySequence.Back)
		homeAction = QAction(QIcon(":/home.png"), "&Home", self)
		homeAction.setShortcut("Home")
		self.pageLabel = QLabel()

		toolBar = QToolBar()
		toolBar.addAction(backAction)
		toolBar.addAction(homeAction)
		toolBar.addWidget(self.pageLabel)
		self.textBrowser = QTextBrowser()

		layout = QVBoxLayout()
		layout.addWidget(toolBar)
		layout.addWidget(self.textBrowser, 1)
		self.setLayout(layout)

		self.connect(backAction, SIGNAL("triggered()"),
					 self.textBrowser, SLOT("backward()"))
		self.connect(homeAction, SIGNAL("triggered()"),
					 self.textBrowser, SLOT("home()"))
		self.connect(self.textBrowser, SIGNAL("sourceChanged(QUrl)"),
					 self.updatePageTitle)

		self.textBrowser.setSearchPaths(["help/"])
		self.textBrowser.setSource(QUrl(page))
		self.resize(400, 600)
		self.setWindowTitle("%s Help" % QApplication.applicationName())


    def updatePageTitle(self):
        self.pageLabel.setText(self.textBrowser.documentTitle())


if __name__ == "__main__":
    import sys

    app = QApplication(sys.argv)
    form = HelpForm("index.html")
    form.show()
    app.exec_()