Helpviewer/Network/PyrcAccessHandler.py

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1 # -*- coding: utf-8 -*-
2
3 # Copyright (c) 2009 Detlev Offenbach <detlev@die-offenbachs.de>
4 #
5
6 """
7 Module implementing a scheme access handler for Python resources.
8 """
9
10 from PyQt4.QtCore import QBuffer, QIODevice, QByteArray
11
12 from Helpviewer.HTMLResources import startPage_html
13
14 from SchemeAccessHandler import SchemeAccessHandler
15
16 from NetworkReply import NetworkReply
17 from NetworkProtocolUnknownErrorReply import NetworkProtocolUnknownErrorReply
18
19 import UI.PixmapCache
20
21 class PyrcAccessHandler(SchemeAccessHandler):
22 """
23 Class implementing a scheme access handler for Python resources.
24 """
25 def createRequest(self, op, request, outgoingData = None):
26 """
27 Protected method to create a request.
28
29 @param op the operation to be performed (QNetworkAccessManager.Operation)
30 @param request reference to the request object (QNetworkRequest)
31 @param outgoingData reference to an IODevice containing data to be sent
32 (QIODevice)
33 @return reference to the created reply object (QNetworkReply)
34 """
35 if request.url().toString() == "pyrc:home":
36 html = startPage_html
37 pixmap = UI.PixmapCache.getPixmap("ericWeb32.png")
38 imageBuffer = QBuffer()
39 imageBuffer.open(QIODevice.ReadWrite)
40 if pixmap.save(imageBuffer, "PNG"):
41 html.replace("IMAGE_BINARY_DATA_HERE",
42 unicode(imageBuffer.buffer().toBase64()))
43 return NetworkReply(request, QByteArray(html), "text/html")
44
45 return NetworkProtocolUnknownErrorReply("pyrc")

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