Yes I know I have to
close the shell: take a look at the code I provided, I close the shell in a “finally”
block (and in an useless “asyncExec Runnable”). But note that I
never open the shell before! This may be the problem, but I don’t want to
show an empty shell just to open a FileDialog.
In fact, the
application has no UI until I open the FileDialog, the application is only meant
to show FileDialogs (and some little other things) when asked.
And that’s why it’s
“system modal”: I have another running application which must not
be active while the FileDialog is open. I know this can seem a bit mysterious,
but I cannot do it another way: I must have two independent applications since
each one is run under distinct user accounts (but on the same computer)…
If you want more details about this, I can explain it...
If there are no workarounds,
I think I’ll have to open this “useless Shell” before showing
the dialog. I already tried to set its size to (0, 0) and open it, but GTK doesn’t
like to show 0-sized widgets…
De :
platform-swt-dev-bounces@xxxxxxxxxxx [mailto:platform-swt-dev-bounces@xxxxxxxxxxx]
De la part de Bogdan Gheorghe
Envoyé : jeudi 29 octobre
2009 17:25
À : Eclipse Platform SWT
component developers list.
Objet : RE:
[platform-swt-dev] FileDialog/DirectoryDialog under Debian
You have to explicitly close the shell, it won't close
for free - try the attached snippet below. BTW, I'm not sure why you are
parenting the dialog on a SYSTEM_MODAL, ON_TOP shell - this seems wrong. System
modal means modal to all other windows on your desktop! A FileDialog will
be modal to all other shells in your app (depending on which version of GTK you
are running, a shell might seem to take focus, but you shouldn't be able to
click on any other controls. If you can please open a bug).
public
static
void
main(String[] args) {
Display display = new Display();
final Shell shell = new Shell(display,
SWT.ON_TOP | SWT.SYSTEM_MODAL);
shell.setLayout(new GridLayout(1, false));
shell.setBounds(50, 50, 100, 100);
shell.open();
final FileDialog dialog = new
FileDialog(shell, SWT.OPEN);
String s= dialog.open();
System.out.println(s);
if (s != null) {
shell.close();
}
while (!shell.isDisposed()) {
if
(!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
From:
|
Stéphane WASSERHARDT <stephane.wasserhardt@xxxxxxxxxxxx>
|
To:
|
"'Eclipse Platform SWT component developers
list.'" <platform-swt-dev@xxxxxxxxxxx>
|
Date:
|
10/28/2009 10:03 AM
|
Subject:
|
RE: [platform-swt-dev] FileDialog/DirectoryDialog
under Debian
|
Sent by:
|
platform-swt-dev-bounces@xxxxxxxxxxx
|
I just tried with SWT.NONE instead of SYSTEM_MODAL and
ON_TOP, but this didn’t change anything L
De :
platform-swt-dev-bounces@xxxxxxxxxxx [mailto:platform-swt-dev-bounces@xxxxxxxxxxx] De la part de Stéphane WASSERHARDT
Envoyé : mercredi 28 octobre 2009 14:50
À : SWT
Objet : [platform-swt-dev] FileDialog/DirectoryDialog under Debian
Hello,
I
have a problem with both FileDialog and DirectoryDialog under Debian Lenny
(GTK2) : when such dialog is closed (either when double clicking an item, using
select or cancel button, or simply closing it), the “open” method
returns with the expected result, but the shell remains open !
The
shell is not repainted anymore, so it seems to be “disposed”, but
it’s still visible…
Moreover,
if I open another file or directory dialog, the previous one disappears!
Note
that the parent shell is created with style “SWT.SYSTEM_MODAL
| SWT.ON_TOP” (and
I’d like to keep this style…)
I
tried with both SWT 3.4.2 and SWT 3.5.1…
Here
is the code I’m using :
// The following Shell is not made
visible. We only show the file dialog.
final
Shell shell = new Shell(display, SWT.SYSTEM_MODAL | SWT.ON_TOP);
try {
final FileDialog fd = new
FileDialog(shell, SWT.OPEN);
// ... Setting of file dialog
properties : text, filterPath, etc. ...
fd.open(); // Opens correctly, and return
normally, but the dialog remains open !
// Get the correct result.
final String[]
selectedFiles = fd.getFileNames();
// ... Process the result ...
} finally {
// I tried to close the parent shell in a async runnable
just in case... But it doesn’t change anything.
display.asyncExec(new
Runnable() {
@Override
public
void
run() {
shell.close();
shell.dispose();
}
});
}
I’m
currently trying to remove “SWT.SYSTEM_MODAL | SWT.ON_TOP”
just to see if it changes something, but I really need the dialog to be
displayed on top and to block other running applications…
Any
help is welcome! Thanks in advance!
Stephane_______________________________________________
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