[Seaside] Background pattern

Wed Nov 19 18:41:07 CET 2003

Torsten.Bergmann at phaidros.com wrote:
> Hi,
> 
> I want to provide a background pattern for my 
> component.
> If the image is an external resource I could
> use the background-image in the stylesheet/style method - 
> but it should be provided by Squeak.
> 
> The <body> is already created as part of the framework,
> so how can I provide an own one? It's created inside the
> response object - so there is no renderBodyOn: method
> in WAComponent I could overwrite.
> 
> My current solution looks like this:
> 
> 1. I've added a method providing a ColorForm. 
> 2. implemented
>    renderContentOn: html
> 	html document body 
> 		attributeAt: 'background'
> 		put: (html urlForDocument: self resourceProvider
> stripePattern1x4x4)
> 
> Is there a better way?

Hm, well if you want to add an attribute to the body, that's definitely 
the way to do it.  I started out writing an example of how you could do 
it with the #style method but then realized you can't because it doesn't 
have access to a renderer to get a url from.

You could of course create your own stylesheet during the render phase, 
get a url for it, and then add it to the head.  I don't think the code 
would be any simpler but you would be using CSS, if that's your 
preference.  Try looking for senders of #style, and then see if you can 
do something similar during your render phase.

Julian

-- 
julian at beta4.com
Beta4 Productions (http://www.beta4.com)