[udig-devel] Wizards with progress!

[rgould@xxxxxxxxxxxxxxx]

I have finally enabled the WMS Wizard with a progress bar. Below is the attached
code that does so! Quite simple really. Not that you cannot perform UI work in
the thread, which is why there is a call to displayError().

getContainer().run(true, false, new IRunnableWithProgress() {
	public void run(IProgressMonitor monitor)
			throws InvocationTargetException, InterruptedException {
		try {
			monitor.beginTask("Connecting to the WMS :", IProgressMonitor.UNKNOWN);
			wms = new WebMapServer(url);
			
			if (wms.getCapabilities() == null) {
				displayError("Unable to parse capabilities document at this URL properly.");
			}
			monitor.done();
		} catch (UnknownHostException e) {
			displayError("Host - " + e.getLocalizedMessage()+" - not found.");
		} catch (FileNotFoundException e) {
			displayError("No document found at that URL.");
		} catch (IOException e) {
			displayError("Unable to parse this capabilities document properly. ");
		}
	}
});

and displayError, which does UI stuff:

private void displayError(final String message) {
	Display.getDefault().asyncExec(new Runnable() {
		public void run() {
			startPage.setErrorMessage(message);
			getContainer().updateMessage();
		}
	});
}

Richard