[pmwiki-users] Images: width and height attributes

[Patrick R. Michaud]

On Thu, Oct 19, 2006 at 03:56:04PM +0200, Mike wrote:
> Hello,
> for images which I want to simply display "as they are", i.e. without
> any resizing etc., it would be very convenient if PmWiki would generate
> HTML code that includes the "height" and "width" attribute in the HTML
> <img> tag. Reason is that on pages with many images that take a while to
> load, images without these attributes will reserve no space which causes
> the whole text to change every time when a new images is loaded.
> 
> I know I could specify this information with %width% etc., but actually
> I'm looking for an automatic way of doing this...

Many times (most?) PmWiki doesn't have direct access to the 
image file to be able to determine its width and height -- i.e., 
PmWiki would have to perform an HTTP request to the remote server to
fetch the image and determine the width and height attribute
values to use in the <img .../> tag.  I didn't want to impose
that overhead on the server(s) or introduce any more delays
to processing the page.

The one exception to this might be image attachments, where 
PmWiki does have direct access to the image file and therefore
could potentially automatically determine width and height
values for the image tag.  But since that means creating and
maintaining a new set of image-tag-handling-functions, I've
gone with PmWikiPhilosophy #3 (avoid gratuitous features) 
until there's enough demand/demonstrated need for it.

Pm