[Qt-interest] Printing a (local) webpage with images

[Atlant Schmidt]

Mathias:

> I there a way to ensure all external objects in the
> page are loaded and the document is ready for printout?

  I think that in the most-general sense, there
  isn't a solution to this problem. Consider, for
  example, a web page that has a JavaScript running
  on it that rotates among multiple images.  Or an
  Ajax page that is busily doing something "out in
  the cloud" after the page has ostensibly "finished
  loading"; that page may continue to change as
  asynchronous results arrive from the cloud.

  That doesn't mean you can't solve your problem for
  your specific case, but I do think the problem isn't
  soluble in the fully-general case.

                       Atlant

-----Original Message-----
From: qt-interest-bounces+aschmidt=dekaresearch.com at qt.nokia.com [mailto:qt-interest-bounces+aschmidt=dekaresearch.com at qt.nokia.com] On Behalf Of Mathias Waack
Sent: Thursday, May 26, 2011 10:35
To: qt-interest at qt.nokia.com
Subject: [Qt-interest] Printing a (local) webpage with images

Hi all,

I'm trying to print a webpage. The problem is (at least from my understanding)
this fact:

[see QWebFrame::setContent]
The data is loaded immediately; external objects are loaded asynchronously.

If I print the page directly like this:

QWebView *view = ...;
view->setHtml(... /* a QString containing some <img src="file://..."> tags*/);
QPrinter printer;
printer.setPageMargins(20,5,5,5,QPrinter::Millimeter);
printer.setOutputFileName(pdfFileName);
printer.setOutputFormat(QPrinter::PdfFormat);
printer.setPageSize(QPrinter::A4);
view.print(&printer);

in some cases some images are missing on the pdf. Thus I assume the problem is
the above sentence. Even waiting for the "void loadFinished(bool ok)" signal
does not solve my problem.

I there a way to ensure all external objects in the page are loaded and the
document is ready for printout?

Thanks!

Mathias
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