Users of the Rosa applet

[Andy Canfield]

Ken,
I had this same painting issue especially with IE6 and what I did was
write a little button in Javascript that forces a repaint of the
applet. This seamed to clear up the painting issue where tools or the
image dissapears. I call it three times right after the page is fully
loaded and I gave the users a button to call the same function. Like I
said this seems to take care of it 99.999% of the time. I am thinking
about seeing if I can invalidate the entire applet canvas and then
repaint it from Javascript and see if that makes it work 100% of the
time. I have to have client side screen drawing ability that's why I
use Rosa but applets have always had painting issues in IE not just
Rosa. The Javascript thing is how I usually work around it in any
applet.
Andy


On Tue, 29 Mar 2005 13:17:33 -0800, Ken Lord <kenlord at gmail.com> wrote:
> Hi Andy,
>
> I use Rosa, and JRE 1.5.. and have seen a few bugs in both IE6 and
> Firefox from a few different computers. Occasionaly a 'stack' error
> pops up when you move the mouse over the map, or when the new map
> image loads the image is there but you cant see it until you take
> another action on the map, even just querying it.  This bug I've
> noticed happening with nearly every map viewed with a new Athlon64
> windows XP IE6 JRE 1.5 computer I had access to recently.
>
> In the past there's been a random problem of some of the Rosa map
> tools dissappearing from the map.  This still seems to happen with the
> new JRE but perhaps not quite as often, hard to say.
>
> For me its to the point that i may just strip Rosa out of my maps once
> and for all.  I'd love to see a simple, clean, portable Flash applet
> to replace it with. The company I'm with has made a flash interface
> for mapserver, but its not simple in appearance, not universal in
> function, and not portable at all.  The one or two open source flash
> interfaces I've found either are not really working yet or are just
> too glitzy looking.
>
> Cheers,
> Ken Lord
> Vancouver BC
>
> On Tue, 29 Mar 2005 12:58:05 -0800, Andy Canfield
> <andy.canfield at gmail.com> wrote:
> > For anyone using Rosa or other applets with Mapserver.
> >
> > I recently upgraded my JRE to 1.5.0_02 when the update from Sun came out.
> >
> > I will spare you the pain of repeating my headache. If you install
> > this update and then use an applet from within Firefox it will crash
> > your firefox randomly for users who are running on Windows 2K and
> > possibly other Windows OS's(I don't know if the same is occuring on
> > *nix boxes or not).
> >
> > If you leave it at 1.4.2_06 or roll it back to 1.4.2_06 the problem
> > will go away. It doesn't seem to affect IE6.
> >
> > Other users are reporting the same things when using sites such as
> > miniclip-tournaments.com that use applets as well.
> >
> > I submitted this to the Firefox people and they are trying to figure
> > out if it's them or Sun that needs to do the fixing.
> >
> > Until it gets sorted out remind your Windows users not to upgrade
> > their JRE if they use Firefox or switch to IE6(Yuck I know). I have no
> > idea what in the applets is causing it but it causes pretty
> > spectacular crashes in some cases.
> > Thanks,
> > Andy
> >
>