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List: kde-devel
Subject: Re: Providing a SourceFactory for KHTMLPart
From: David Faure <faure () kde ! org>
Date: 2005-04-27 23:46:24
Message-ID: 200504280146.24798.faure () kde ! org
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On Tuesday 26 April 2005 11:42, tim wrote:
> Hi ppl,
>
> I'm developing a Qt/KDE CHM files viewer, you can check it at
> http://kchmviewer.sourceforge.net
>
> Now I'm working on adding KDE integration (at this moment, I'm working on UI
> and KHTML integration, no KParts yet). In Qt version I use QTextBrowser among
> with QMimeSourceFactory. This allows me just to "tell" QTextBrowser - "open
> the url ABCD", and then QTextBrowser asks mine QMimeSourceFactory about the
> content of url ABCD, and about any image it needs to get to show this page.
>
> Unfortunately, I found no such functionality in KHTML. I can show the HTML
> page itself (by using begin(), write() and end()), but I see no way to
> provide KHTML with application-embedded source, which would provide KHTML
> with needed data.
>
> Is it ever possible?
You can use a URL like
data:image/png;base64,<......>
so that the image data is provided "inline" in the HTML.
This is what kmail does, with code like this:
QString FancyHeaderStyle::imgToDataUrl( const QImage &image, const char* fmt )
{
QBuffer buffer;
buffer.open( IO_WriteOnly );
image.save( &buffer, fmt );
return QString::fromLatin1("data:image/%1;base64,%2")
.arg( fmt, KCodecs::base64Encode( buffer.buffer() ) );
}
--
David Faure, faure@kde.org, sponsored by Trolltech to work on KDE,
Konqueror (http://www.konqueror.org), and KOffice (http://www.koffice.org).
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