QTextBrowser

One possible aproach that I can see (but have not tested) is to create
a new class inherrited from QTextBrowser and overload the loadResource function in a way where you check for the names you are interested in and resolve them.

For example like this (again not tested)

Qt Code:

QVariant MyBrowser::loadResource(int type, const QUrl &name)
{
   if (type == QTextDocument::ImageResource
       && name.scheme() == QLatin1String("mypics")) {
      QImage correctImage;
      //lookup the correct QImage from a cache
      return QVariant::fromValue(correctImage);
   } else {
      return QTextBrowser::loadResource(type, name);
   }
} 

Then you should be able to show images when you call

Qt Code:

myTextBrowser.append(QLatin1String("\"mypics://theCurrentPicture.png\" />")); 

Disclaimer: Shot from the Hip, not tested...might be completely the wrong track

------------------------------------------------------------------------
from PyQt4 import QtCore,QtGui
import urllib, os, md5

class PBrowser(QtGui.QTextBrowser):
  def loadResource(self, type, name):
      url=unicode(name.toString())
      ret=QtCore.QVariant()
      if url.startswith('http://'):
          dn=os.path.expanduser('~/.bartleblog/cache/')
          if not os.path.isdir(dn):
              os.mkdir(dn)
          m=md5.new()
          m.update(url)
          fn=os.path.join(dn,m.hexdigest())
          if not os.path.isfile(fn):
              urllib.urlretrieve(url, fn)
          ret=QtGui.QTextBrowser.loadResource(self, type, QtCore.QUrl(fn))
      else:
          ret=QtGui.QTextBrowser.loadResource(self, type, name)
      return ret