I’ve created an RCP application with an interactive splash for logging onto my system. I built it on a Mac, and the application works perfectly, but when I created a new product configuration for Windows and run the application, it launches without the splash and there are no errors appearing in the console.
The splash handler code is as follows
/**
* The splash screen controller for the RCP application. This has been modified to also act as a login screen for the
* application. Failure to correctly authenticate results in the application termination.
*/
package com.myproject.plugins.core.splashHandlers;
import java.net.MalformedURLException;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.FormAttachment;
import org.eclipse.swt.layout.FormData;
import org.eclipse.swt.layout.FormLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.splash.AbstractSplashHandler;
/**
* The splash handler overrides the default RCP splash handler.
* @since 3.3
*/
public class InteractiveSplashHandler extends AbstractSplashHandler {
/**
* Composite container for login form.
*/
private Composite loginComposite;
/**
* Text box input for login username.
*/
private Text usernameTextBox;
/**
* Text box input for login password.
*/
private Text passwordTextBox;
/**
* OK button for submission of the login form.
*/
private Button okButton;
/**
* Cancel button for cancelling the login attempt and exiting the application.
*/
private Button cancelButton;
/**
* Simple boolean flag to store login success/status.
*/
private boolean isAuthenticated;
/**
* SWT form label for username.
*/
private Label usernameLabel;
/**
* SWT form label for password.
*/
private Label passwordLabel;
/**
* Form/layout data for username label.
*/
private FormData usernameLabelFormData;
/**
* Form/layout data for password label.
*/
private FormData passwordLabelFormData;
/**
* Form/layout data for username text box.
*/
private FormData usernameTextBoxFormData;
/**
* Form/layout data for password text box.
*/
private FormData passwordTextBoxFormData;
/**
* Form/layout data for OK button.
*/
private FormData okButtonFormData;
/**
* Constructor for the splash handler.
*/
public InteractiveSplashHandler() {
passwordTextBox = null;
cancelButton = null;
isAuthenticated = false;
}
/**
* Initialiser for the splash screen.
* @see org.eclipse.ui.splash.AbstractSplashHandler#init(org.eclipse.swt.widgets.Shell)
*/
public void init(final Shell splash) {
/**
* Initialising the parent SplashHandler with the splash shell.
*/
super.init(splash);
/**
* Configure the shell UI layout.
*/
configureUISplash();
/**
* Create UI components.
*/
createUI();
/**
* Create UI listeners.
*/
createUIListeners();
/**
* Force the splash screen to layout.
*/
splash.layout(true);
/**
* Keep the splash screen visible and prevent the RCP application from loading until the close button is
* clicked.
*/
doEventLoop();
}
/**
* Create the event loop for the splash to prevent the application load from completion, and hold it at the splash
* until the login event is successful.
*/
private void doEventLoop() {
Shell splash = getSplash();
while (isAuthenticated == false) {
if (splash.getDisplay().readAndDispatch() == false) {
splash.getDisplay().sleep();
}
}
}
/**
* Create the UI listeners for all the form components.
*/
private void createUIListeners() {
/**
* Create the OK button listeners.
*/
createUIListenersButtonOK();
/**
* Create the cancel button listeners.
*/
createUIListenersButtonCancel();
}
/**
* Listeners setup for the cancel button.
*/
private void createUIListenersButtonCancel() {
cancelButton.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
handleButtonCancelWidgetSelected();
}
});
}
/**
* Handles the cancel action by shutting down the RCP application.
*/
private void handleButtonCancelWidgetSelected() {
/**
* Abort the loading of the RCP application.
*/
getSplash().getDisplay().close();
System.exit(0);
}
/**
* Listeners setup for the OK button.
*/
private void createUIListenersButtonOK() {
okButton.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
handleButtonOKWidgetSelected();
}
});
}
/**
* Handles the OK button being pressed and the login attempted.
*/
private void handleButtonOKWidgetSelected() {
String username = usernameTextBox.getText();
String password = passwordTextBox.getText();
AuthenticationClient client = new AuthenticationClient();
if (username.equals("") || password.equals("")) {
MessageDialog.openError(getSplash(),
"Authentication Failed", //$NON-NLS-1$
"A username and password must be specified to login."); //$NON-NLS-1$
} else {
try {
if (client.authenticate(username, password)) {
isAuthenticated = true;
} else {
MessageDialog.openError(getSplash(),
"Authentication Failed", //$NON-NLS-1$
"The details you entered could not be verified."); //$NON-NLS-1$
}
} catch (MalformedURLException e) {
MessageDialog.openError(getSplash(),
"Authentication Failed", //$NON-NLS-1$
"Service responded with an error."); //$NON-NLS-1$
}
}
}
/**
* Calls the individual UI component creation functions.
*/
private void createUI() {
/**
* Create the login panel.
*/
createUICompositeLogin();
/**
* Create the user name label.
*/
createUILabelUserName();
/**
* Create the user name text widget.
*/
createUITextUserName();
/**
* Create the password label.
*/
createUILabelPassword();
/**
* Create the password text widget.
*/
createUITextPassword();
/**
* Create the OK button.
*/
createUIButtonOK();
/**
* Create the cancel button.
*/
createUIButtonCancel();
}
/**
* Creates the SWT component for the cancel button.
*/
private void createUIButtonCancel() {
/**
* Create the button.
*/
cancelButton = new Button(loginComposite, SWT.PUSH);
okButtonFormData.right = new FormAttachment(cancelButton, -6);
FormData cancelButtonFormData = new FormData();
cancelButtonFormData.left = new FormAttachment(0, 392);
cancelButtonFormData.right = new FormAttachment(100, -10);
cancelButtonFormData.bottom = new FormAttachment(100, -10);
cancelButton.setLayoutData(cancelButtonFormData);
cancelButton.setText("Cancel");
}
/**
* Creates the SWT component for the OK button.
*/
private void createUIButtonOK() {
/**
* Create the button.
*/
okButton = new Button(loginComposite, SWT.PUSH);
passwordTextBoxFormData.bottom = new FormAttachment(okButton, -6);
okButtonFormData = new FormData();
okButtonFormData.left = new FormAttachment(0, 279);
okButtonFormData.bottom = new FormAttachment(100, -10);
okButton.setLayoutData(okButtonFormData);
okButton.setText("OK");
}
/**
* Creates the SWT component for the password text box.
*/
private void createUITextPassword() {
/**
* Create the text widget.
*/
int style = SWT.PASSWORD | SWT.BORDER;
passwordTextBox = new Text(loginComposite, style);
passwordLabelFormData.right = new FormAttachment(passwordTextBox, -6);
passwordTextBoxFormData = new FormData();
passwordTextBoxFormData.right = new FormAttachment(100, -10);
passwordTextBoxFormData.left = new FormAttachment(0, 279);
passwordTextBox.setLayoutData(passwordTextBoxFormData);
}
/**
* Creates the SWT component for the password label.
*/
private void createUILabelPassword() {
/**
* Create the label.
*/
passwordLabel = new Label(loginComposite, SWT.NONE);
passwordLabelFormData = new FormData();
passwordLabelFormData.top = new FormAttachment(usernameLabel, 11);
passwordLabel.setLayoutData(passwordLabelFormData);
passwordLabel.setText("&Password:");
}
/**
* Creates SWT component for the username text box.
*/
private void createUITextUserName() {
/**
* Create the text widget.
*/
usernameTextBox = new Text(loginComposite, SWT.BORDER);
usernameLabelFormData.top = new FormAttachment(usernameTextBox, 3, SWT.TOP);
usernameLabelFormData.right = new FormAttachment(usernameTextBox, -6);
usernameTextBoxFormData = new FormData();
usernameTextBoxFormData.top = new FormAttachment(0, 233);
usernameTextBoxFormData.right = new FormAttachment(100, -10);
usernameTextBoxFormData.left = new FormAttachment(0, 279);
usernameTextBox.setLayoutData(usernameTextBoxFormData);
}
/**
* Creates SWT component for the username label.
*/
private void createUILabelUserName() {
/**
* Create the label
*/
usernameLabel = new Label(loginComposite, SWT.NONE);
usernameLabelFormData = new FormData();
usernameLabel.setLayoutData(usernameLabelFormData);
usernameLabel.setText("&User Name:");
}
/**
* Creates SWT component for the login composite.
*/
private void createUICompositeLogin() {
/**
* Create the composite and set the layout.
*/
loginComposite = new Composite(getSplash(), SWT.BORDER);
loginComposite.setLayout(new FormLayout());
}
/**
* Configures the splash screen SWT/UI components.
*/
private void configureUISplash() {
/**
* Configure layout
*/
FillLayout layout = new FillLayout();
getSplash().setLayout(layout);
/**
* Force shell to inherit the splash background
*/
getSplash().setBackgroundMode(SWT.INHERIT_DEFAULT);
}
}
Oddly enough, the bitmap (created in Photoshop/Mac) image was seen as corrupt in Eclipse, but opened fine in all graphics applications (including Photoshop/Win). I opened the file in MS Paint and saved without changes. The splash started working fine.
Check your bitmap if you get this error!