Re: [Pueblo-Users] Snap poll: PNG pong

[Gavin L. <ue...@us...>]

At 17:26 19/02/2003 -0500, Maxi Rose wrote:
 >
 >It's hard for me to choose between those two. In all honesty, 
I'm
 >so used to load-on-complete that it doesn't upset me. Yet, what
 >would be nice is when we specify the size of the image in our
 >Pueblo code, I'd like to see space set aside for the image like
 >in HTML, so that text doesn't suddenly jump or jumble to 
scramble
 >out of the way and make room for the pic. This way, a user can
 >go, "Ah... There's a picture there. I just have to wait for it 
to
 >load." To go further and let us have a temporary low-res image
 >to load in its place like you can do, would be nice.

Well, according to both the code and my own tests Pueblo does in 
fact create a placeholder space in the output window.  If you 
specify both of WIDTH and HEIGHT then it will be that size, 
otherwise it will be 8x8 pixels.  Presently only an empty space is 
left -- there is no border or anything else visible until the 
image loads.

In fact, that is the only function of the WIDTH and HEIGHT 
attributes, since Pueblo performs no image scaling, and always 
displays images at their proper dimensions regardless of the WIDTH 
and HEIGHT specified.  I could change this if people think that 
it's a bug... though I'd rather not, since there are caching 
issues involved too -- in a single Pueblo session, all images that 
have the EXACT same URL are linked together so that they are all 
the same size and will animate simultaneously.  Saves memory and 
download time.

In any case, I've added a more visible placeholder (and even made 
it change appearance to indicate a broken or otherwise 
undisplayable image) to the development code, so you'll see that 
in action in the next release :)