Re: [moz-bonobo-list] SVG and moz-bonobo

[Jean Bréfort]

Le ven 13/06/2003 à 21:33, Christian Glodt a écrit :
> Hi,
> 
> On Fri, 2003-06-13 at 21:05, Christian Fredrik Kalager Schaller wrote:
> > Hi,
> > Here are some screenshots I made of moz-bonobo + eog displaying some SVG
> > images. Is there any change moz-bonobo could get them to display using
> > the webpage background color as its background color?
> > 
> > http://www.linuxrising.com/files/abisvg.png
> > http://www.linuxrising.com/files/bsggaleon.png
> 
> AFAIK, this is not possible using the (current) EOG component.
> I'm not sure if it's possible at all. Even if the browser plugin
> interface supported translucent plugins (which I don't know),
> it would probably take a custom bonobo component to display it
> using transparencies.
> 
> I wouldn't be opposed to bundling such a specialised component
> with mozilla-bonobo, btw.

It is quite possible that mozilla supports transparent plugins. One of
the possible parameters for NPP_GetValue is NPPVpluginTransparentBool.
But gtk+ does not support transparent windows (except in
framebuffers(?)) as far as I know. So the GtkPlug cannot be made
transparent even if the Control had a transparent background.
One might bbe related problem is an existence of a shadow around the
control displayed. I can't get rid if it and I suppose it comes from the
GtkPlug (not sure).

> 
> Another way might be the bonobo property bag support which
> Jean Bréfort contributed today. We could pass the background
> colour as a plugin parameter to all bonobo components.
> Then someone would need to patch EOG to support that property.
> 
> Still, I'm not sure how the background colour can be found out
> from a browser plugin.

I do not know either, but it is possible to add a background parameter
such as
<param name="background" value="rgb(0,0,0)"/>
or anything appropriate. Anymay, there is no background property in the
EOG control property bag at the moment. Note that if an image is used as
background, things will be very difficult if not impossible.

-- 
Jean Bréfort <address@hidden>