Here's sun's tutorial on the root pane:
http://java.sun.com/docs/books/tutorial/uiswing/components/rootpane.html
When you add panels to a JFrame, you generally use the content pane of
the JFrame. In addition to the content pane, there is the layered pane
and the glass pane. The glass pane is above the content pane. So, open
map would be in the content pane and a tiny little animation of a spot
blinking would be in the glass pane on top of open map. It can be very
quick and efficient because open map does not need to refresh the map
for the animation. Especially if you set the clip appropriately, the
only thing that needs to be redrawn is the little area around your
animation. A very good explanation of how to do this and much more
impressive animation and effects can be found in a new book that just
came out:
http://www.filthyrichclients.org/
Jay
-----Original Message-----
From: owner-openmap-users_at_bbn.com [mailto:owner-openmap-users_at_bbn.com]
On Behalf Of Lackey, Michael B. (SED/BTI)
Sent: Friday, November 16, 2007 9:14 AM
To: Don Dietrick; JR Andreassen
Cc: openmap-users_at_bbn.com
Subject: RE: [OpenMap Users] Location /Labler (UNCLASSIFIED)
Classification: UNCLASSIFIED
Caveats: NONE
I too have a similar requirement to draw a very simple animation. Not
quite sure what you mean by drawing on the glass pane. Would that cause
the entire area of the screen to be repainted, same as if drawing on an
openmap layer? How can that save memory and/or computes? If anybody
can contribute a sentence or two to get me started in the right
direction...
Mike Lackey
Brockwell Technologies, Inc.
256-876-0167
-----Original Message-----
From: owner-openmap-users_at_bbn.com [mailto:owner-openmap-users_at_bbn.com]
On Behalf Of Don Dietrick
Sent: Thursday, November 15, 2007 4:50 PM
To: JR Andreassen
Cc: openmap-users_at_bbn.com
Subject: Re: [OpenMap Users] Location /Labler
Hi JR,
Generally, you'd have to do the repaint method. You might want to look
at the RootPane of the window and render your animated object on the
glass pane or something, but you'd have to do the math to make it show
up in the right place relative to the map part of the window.
- Don
JR Andreassen wrote:
> Hi All...
>
> Quick question
> Is there a way to make an object flash.
>
> We want to find an object in a layer and make it flash.
> I didn't see any way to set any attributes to do it.
>
> The options I thought of was
> Make an animated GIF icon object.
> Or refresh the layer more frequently and alternate color, but that's
> too slow.
> Thanks...
> JR
>
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Received on Fri Nov 16 2007 - 11:06:13 EST