Setting Cursor - For a window and application wide

Question

Hi,
Can somebody please help with a cursor problem ? I am not able to set the busy cursor for a frame when the application is doing some work. I have tried many methods of doing this (some of them from these forums...) but still I am not able to make this work.
1) setting the cursor before doing the work and resetting after the
work doesnt work.
2) setting the cursor for the window by calling
Window window = SwingUtilities.windowForComponent(getRootPane().getGlassPane());
window.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
This works but the events are not blocked by the frame i.e if i
click on any part of the window like a button or something, that
event is fired after the work is done. So this is not good.
3) created a glass pane for the window and blocked all the events. Then
set the cursor for the the glass pane. This does not work either
since the event thread is doing the work. So had to create another
thread to do the work. This works but when the cursor is reset back,
it doesnt reset. I have to move the mouse a bit to reset it. So this
is not good either.
4) created a work around for the cursor by creating a modal dialog box
saying "Processing..." in the event thread and doing the work in the
worker thread. The worker thread posts an event to dispose the
dialog box after the work is done. This works perfectly though it is
still not good because the cursor is not showing busy. Because of
the modal dialog box, the user cant do anything in the application
which is exactly what i want. Is this ok ? Can somebody provide any
other work around for this ?
5) Also I have another question for you guys. In the worker thread if i
do something like updating the gui etc., it takes a lot of time
almost 10 times more than when the work is done in a single threaded
environment. Is this because of the communication between the worker
thread and the event thread ? If I do only data related work not gui
work in the worker thread, this is fine.
I am new to Swing, so somebody please explain to me if they can.
My environment is JDK 1.1.7, Swing 1.1 on Sun Solaris 2.5.1. Is this because I am using old versions. Is this resolved in the newer versions like 1.3 etc ?
-Vijay

Answer 1

moetunes wrote:I thought a
chmod u+rw /path/to/.conf
chmod go-rw /path/to/.conf
would set the file to be read only by the user that owns it.
That is all true.  The problem is the need to give a user the ability to run a program that has secrets that should only be visible by root.  If you give the user ownership, they cab see the keys to the kingdom.
For example, you may want to allow a user to connect to an arbitrary wireless access point.  Generally, this is a privileged operation -- you want to give them permission to do it, but don't want to give them ownership.  You may also not want them to be able to see or modify the pass phrases.