PyQt写的浏览单web页面的browser，pyqtbrowser,程序代码#!/usr/b

PyQt写的浏览单web页面的browser，pyqtbrowser,程序代码#!/usr/b

程序代码

#!/usr/bin/env pythonimport sysfrom PyQt4 import QtCore, QtGuifrom browser import Ui_HttpWidgetclass httpWidget(QtGui.QWidget):    def __init__(self, parent=None):        super(httpWidget, self).__init__(parent)        self.ui = Ui_HttpWidget()        self.ui.setupUi(self)        L = self.layout()        L.setMargin(0)        self.ui.horizontalLayout.setMargin(5)        url = 'http://google.com'        self.ui.url.setText(url)        self.ui.webView.setUrl(QtCore.QUrl(url))        self.ui.back.setEnabled(False)        self.ui.next.setEnabled(False)        QtCore.QObject.connect(self.ui.back, QtCore.SIGNAL("clicked()"),\                        self.back)        QtCore.QObject.connect(self.ui.next, QtCore.SIGNAL("clicked()"),\                        self.next)        QtCore.QObject.connect(self.ui.url, QtCore.SIGNAL("returnPressed()"),\                        self.url_changed)        QtCore.QObject.connect(self.ui.webView, QtCore.SIGNAL("linkClicked(const QUrl&)"),\                        self.link_clicked)        QtCore.QObject.connect(self.ui.webView, QtCore.SIGNAL("urlChanged(const QUrl&)"),\                        self.link_clicked)        QtCore.QObject.connect(self.ui.webView, QtCore.SIGNAL("loadProgress(int)"),\                        self.load_progress)        QtCore.QObject.connect(self.ui.webView, QtCore.SIGNAL("titleChanged(const QString&)"),\                        self.title_changed)        QtCore.QObject.connect(self.ui.reload, QtCore.SIGNAL("clicked()"),\                        self.reload_page)        QtCore.QObject.connect(self.ui.stop, QtCore.SIGNAL("clicked()"),\                        self.stop_page)        QtCore.QMetaObject.connectSlotsByName(self)    def url_changed(self):        page = self.ui.webView.page()        history = page.history()        if history.canGoBack():            self.ui.back.setEnabled(True)        else:            self.ui.back.setEnabled(False)        if history.canGoForward():            self.ui.next.setEnabled(True)        else:            self.ui.next.setEnabled(False)        url = self.ui.url.text()        self.ui.webView.setUrl(QtCore.QUrl(url))    def stop_page(self):        self.ui.webView.stop()    def title_changed(self, title):        self.setWindowTitle(title)    def reload_page(self):        self.ui.webView.setUrl(QtCore.QUrl(self.ui.url.text()))    def link_clicked(self, url):        page = self.ui.webView.page()                self.__setHistButtonState(page, self.ui.back, self.ui.next)        self.ui.url.setText(url.toString())    def load_progress(self, load):        if load == 100:            self.ui.stop.setEnabled(False)        else:            self.ui.stop.setEnabled(True)    def back(self):        page = self.ui.webView.page()        self.__setHistButtonState(page, self.ui.back, None)        history = page.history()        history.back()    def next(self):        page = self.ui.webView.page()        history = page.history()        history.forward()        self.__setHistButtonState(page, None, self.ui.next)    #control the navigator buttons enability    def __setHistButtonState(self, page, back, next):        history = page.history()        if back is not None:            if history.canGoBack():                back.setEnabled(True)            else:                back.setEnabled(False)        if next is not None:            if history.canGoForward():                next.setEnabled(True)            else:                next.setEnabled(False)if __name__ == "__main__":    app = QtGui.QApplication(sys.argv)    myapp = httpWidget()    myapp.show()    sys.exit(app.exec_())

QtDesigner生成的界面代码

# -*- coding: utf-8 -*-# Form implementation generated from reading ui file 'httpWidget.ui'## Created: Mon Jun 13 15:26:37 2011#      by: PyQt4 UI code generator 4.8.4## WARNING! All changes made in this file will be lost!from PyQt4 import QtCore, QtGuitry:    _fromUtf8 = QtCore.QString.fromUtf8except AttributeError:    _fromUtf8 = lambda s: sclass Ui_HttpWidget(object):    def setupUi(self, HttpWidget):        HttpWidget.setObjectName(_fromUtf8("HttpWidget"))        HttpWidget.resize(636, 336)        self.verticalLayout = QtGui.QVBoxLayout(HttpWidget)        self.verticalLayout.setObjectName(_fromUtf8("verticalLayout"))        self.horizontalLayout = QtGui.QHBoxLayout()        self.horizontalLayout.setObjectName(_fromUtf8("horizontalLayout"))        self.back = QtGui.QPushButton(HttpWidget)        icon = QtGui.QIcon()        icon.addPixmap(QtGui.QPixmap(_fromUtf8("back.png")), QtGui.QIcon.Normal, QtGui.QIcon.Off)        self.back.setIcon(icon)        self.back.setObjectName(_fromUtf8("back"))        self.horizontalLayout.addWidget(self.back)        self.next = QtGui.QPushButton(HttpWidget)        self.next.setEnabled(True)        self.next.setLayoutDirection(QtCore.Qt.RightToLeft)        icon1 = QtGui.QIcon()        icon1.addPixmap(QtGui.QPixmap(_fromUtf8("next.png")), QtGui.QIcon.Normal, QtGui.QIcon.Off)        self.next.setIcon(icon1)        self.next.setObjectName(_fromUtf8("next"))        self.horizontalLayout.addWidget(self.next)        self.stop = QtGui.QPushButton(HttpWidget)        icon2 = QtGui.QIcon()        icon2.addPixmap(QtGui.QPixmap(_fromUtf8("stop.png")), QtGui.QIcon.Normal, QtGui.QIcon.Off)        self.stop.setIcon(icon2)        self.stop.setObjectName(_fromUtf8("stop"))        self.horizontalLayout.addWidget(self.stop)        self.reload = QtGui.QPushButton(HttpWidget)        icon3 = QtGui.QIcon()        icon3.addPixmap(QtGui.QPixmap(_fromUtf8("reload.png")), QtGui.QIcon.Normal, QtGui.QIcon.Off)        self.reload.setIcon(icon3)        self.reload.setObjectName(_fromUtf8("reload"))        self.horizontalLayout.addWidget(self.reload)        self.url = QtGui.QLineEdit(HttpWidget)        self.url.setObjectName(_fromUtf8("url"))        self.horizontalLayout.addWidget(self.url)        self.verticalLayout.addLayout(self.horizontalLayout)        self.webView = QtWebKit.QWebView(HttpWidget)        self.webView.setUrl(QtCore.QUrl(_fromUtf8("about:blank")))        self.webView.setObjectName(_fromUtf8("webView"))        self.verticalLayout.addWidget(self.webView)        self.retranslateUi(HttpWidget)        QtCore.QMetaObject.connectSlotsByName(HttpWidget)    def retranslateUi(self, HttpWidget):        HttpWidget.setWindowTitle(QtGui.QApplication.translate("HttpWidget", "Form", None, QtGui.QApplication.UnicodeUTF8))        self.back.setToolTip(QtGui.QApplication.translate("HttpWidget", "Back", None, QtGui.QApplication.UnicodeUTF8))        self.back.setText(QtGui.QApplication.translate("HttpWidget", "Back", None, QtGui.QApplication.UnicodeUTF8))        self.next.setToolTip(QtGui.QApplication.translate("HttpWidget", "Next", None, QtGui.QApplication.UnicodeUTF8))        self.next.setText(QtGui.QApplication.translate("HttpWidget", "    Next", None, QtGui.QApplication.UnicodeUTF8))        self.stop.setToolTip(QtGui.QApplication.translate("HttpWidget", "Stop", None, QtGui.QApplication.UnicodeUTF8))        self.stop.setText(QtGui.QApplication.translate("HttpWidget", "Stop", None, QtGui.QApplication.UnicodeUTF8))        self.reload.setToolTip(QtGui.QApplication.translate("HttpWidget", "Reload", None, QtGui.QApplication.UnicodeUTF8))        self.reload.setText(QtGui.QApplication.translate("HttpWidget", "Reload", None, QtGui.QApplication.UnicodeUTF8))from PyQt4 import QtWebKit