#!/usr/bin/env python ############################################################################# ## ## Copyright (C) 2010 Hans-Peter Jansen <hpj@urpla.net>. ## Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). ## All rights reserved. ## ## This file is part of the examples of PyQt. ## ## $QT_BEGIN_LICENSE:BSD$ ## You may use this file under the terms of the BSD license as follows: ## ## "Redistribution and use in source and binary forms, with or without ## modification, are permitted provided that the following conditions are ## met: ## * Redistributions of source code must retain the above copyright ## notice, this list of conditions and the following disclaimer. ## * Redistributions in binary form must reproduce the above copyright ## notice, this list of conditions and the following disclaimer in ## the documentation and/or other materials provided with the ## distribution. ## * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor ## the names of its contributors may be used to endorse or promote ## products derived from this software without specific prior written ## permission. ## ## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." ## $QT_END_LICENSE$ ## ########################################################################### # This is only needed for Python v2 but is harmless for Python v3. import sip sip.setapi('QString', 2) from PyQt4 import QtCore, QtGui, QtWebKit from ui_previewer import Ui_Form class Previewer(QtGui.QWidget, Ui_Form): def __init__(self, parent=None): super(Previewer, self).__init__(parent) self.setupUi(self) self.baseUrl = QtCore.QUrl() def setBaseUrl(self, url): self.baseUrl = url def on_previewButton_clicked(self): # Update the contents in the web viewer. text = self.plainTextEdit.toPlainText() self.webView.setHtml(text, self.baseUrl) class MainWindow(QtGui.QMainWindow): def __init__(self): super(MainWindow, self).__init__() self.createActions() self.createMenus() self.centralWidget = Previewer(self) self.setCentralWidget(self.centralWidget) self.centralWidget.webView.loadFinished.connect(self.updateTextEdit) self.setStartupText() def createActions(self): self.openAct = QtGui.QAction("&Open...", self, shortcut=QtGui.QKeySequence.Open, statusTip="Open an existing HTML file", triggered=self.open) self.openUrlAct = QtGui.QAction("&Open URL...", self, shortcut="Ctrl+U", statusTip="Open a URL", triggered=self.openUrl) self.saveAct = QtGui.QAction("&Save", self, shortcut=QtGui.QKeySequence.Save, statusTip="Save the HTML file to disk", triggered=self.save) self.exitAct = QtGui.QAction("E&xit", self, shortcut=QtGui.QKeySequence.Quit, statusTip="Exit the application", triggered=self.close) self.aboutAct = QtGui.QAction("&About", self, statusTip="Show the application's About box", triggered=self.about) self.aboutQtAct = QtGui.QAction("About &Qt", self, statusTip="Show the Qt library's About box", triggered=QtGui.qApp.aboutQt) def createMenus(self): self.fileMenu = self.menuBar().addMenu("&File") self.fileMenu.addAction(self.openAct) self.fileMenu.addAction(self.openUrlAct) self.fileMenu.addAction(self.saveAct) self.fileMenu.addSeparator() self.fileMenu.addAction(self.exitAct) self.menuBar().addSeparator() self.helpMenu = self.menuBar().addMenu("&Help") self.helpMenu.addAction(self.aboutAct) self.helpMenu.addAction(self.aboutQtAct) def about(self): QtGui.QMessageBox.about(self, "About Previewer", "The <b>Previewer</b> example demonstrates how to view HTML " "documents using a QtWebKit.QWebView.") def open(self): fileName = QtGui.QFileDialog.getOpenFileName(self) if fileName: fd = QtCore.QFile(fileName) if not fd.open(QtCore.QIODevice.ReadOnly): QtGui.QMessageBox.information(self, "Unable to open file", fd.errorString()) return output = QtCore.QTextStream(fd).readAll() # Display contents. self.centralWidget.plainTextEdit.setPlainText(output) self.centralWidget.setBaseUrl(QtCore.QUrl.fromLocalFile(fileName)) def openUrl(self): url, ok = QtGui.QInputDialog.getText(self, "Enter a URL", "URL:", QtGui.QLineEdit.Normal, "http://") if ok and url: url = QtCore.QUrl(url) self.centralWidget.webView.setUrl(url) def save(self): content = self.centralWidget.plainTextEdit.toPlainText() fileName = QtGui.QFileDialog.getSaveFileName(self) if fileName: fd = QtCore.QFile(fileName) if not fd.open(QtCore.QIODevice.WriteOnly): QtGui.QMessageBox.information(self, "Unable to open file", fd.errorString()) return QtCore.QTextStream(fd) << content def updateTextEdit(self): mainFrame = self.centralWidget.webView.page().mainFrame() frameText = mainFrame.toHtml() self.centralWidget.plainTextEdit.setPlainText(frameText) def setStartupText(self): self.centralWidget.webView.setHtml(""" <html><body> <h1>HTML Previewer</h1> <p>This example shows you how to use QtWebKit.QWebView to preview HTML data written in a QtGui.QPlainTextEdit. </p> </body></html>""") if __name__ == '__main__': import sys app = QtGui.QApplication(sys.argv) mainWindow = MainWindow() mainWindow.show() sys.exit(app.exec_())