How to double buffering a WebKit page using QWebView and PySide?

I am playing with PySide开发者_StackOverflow社区 and QWebView to provide a WebKit version of a webapp on Windows.

Simple and easy to install in a complex working Windows environment where only Internet Explorer exists.

More over using QWebKit it is quite simple :

#!/usr/bin/env python
#-*- coding:utf-8 -*-

#       hellowebkit.py


#       Copyright 2009 Piotr Maliński, riklaunim@gmail.com
#       
#       <Under GPL licence>

import sys
from PySide.QtCore import *
from PySide.QtGui import *
from PySide.QtWebKit import *

app = QApplication(sys.argv)

web = QWebView()
web.load(QUrl("http://myapp.example.com"))
web.show()

sys.exit(app.exec_())

I would like to enable double buffering so that there is no drawing until the next page is fully loaded.

Do you know how I should do that? I guess maybe using web.loadFinished() signal?

Cheers,

Natim

---

You can use a QStackedWidget and a QSignalMapper to do that:

import sys
from PySide.QtCore import *
from PySide.QtGui import *
from PySide.QtWebKit import *

app = QApplication(sys.argv)

# Create a stack with 2 webviews
stack = QStackedWidget()
mapper = QSignalMapper(stack)
mapper.mapped[int].connect(stack.setCurrentIndex)
for i in range(2):
    web = QWebView(stack)
    stack.addWidget(web)
    # When a webview finishes loading, switch to it
    web.loadFinished[bool].connect(mapper.map)
    mapper.setMapping(web, i)

# load the page in the non visible webview
stack.widget(1).load(QUrl("http://myapp.example.com"))
stack.show()

sys.exit(app.exec_())