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Article View: borland.public.jbuilder.java.language
Article #8583

Re: java and images

#8583
From: Paul Furbacher [TeamB]
Date: Fri, 09 Mar 2001 15:41
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Neil Wood wrote:

Technically, since this is an applet question, you should
have asked it in the "applet-issues" newsgroup.

> I have to create a simple applet that loads a file of images and displays
> one of the images within the whole applet. The image shown is determined by
> the position of the mouse across the applet.
> 
> What will be the easiest way to pull this off and what sort of image files
> do you think I should use.

Certainly, you wouldn't put all of the images into a 
single file ... or would you?  It seems to me that
you would simply store the images in separate GIF or JPG
files in your archive, add a mouse listener to the applet 
which determines where the mouse is in your "image change map", 
and get the image (doing this has been discussed lots of times
in the "applet-issues" newsgroup, so do a search) and paint 
it when the time is right.  

Another strategy would be to cache all the images (hopefully,
you don't have that many, and the images themselves aren't
too big) and take the images  from the cache.  If you
have the Pro or Ent versions, the JBCL has a class called
ImageLoader, which I think did some kind of caching.


Paul Furbacher (TeamB)
 - Please send responses to newsgroups only.  Thank you.
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Date: Fri, 09 Mar 2001 10:41:18 -0500
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