SendMessage.java Source code

Introduction

Here is the source code for SendMessage.java

Source

import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.window.ApplicationWindow;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;

/**
 * This class demonstrates JFace's MessageDialog class
 */
public class SendMessage extends ApplicationWindow {
    /**
     * SendMessage constructor
     */
    public SendMessage() {
        super(null);
    }

    /**
     * Runs the application
     */
    public void run() {
        // Don't return from open() until window closes
        setBlockOnOpen(true);

        // Open the main window
        open();

        // Dispose the display
        Display.getCurrent().dispose();
    }

    /**
     * Configures the shell
     * 
     * @param shell the shell
     */
    protected void configureShell(Shell shell) {
        super.configureShell(shell);

        // Set the title bar text and the size
        shell.setText("Send Message");
        shell.setSize(500, 400);
    }

    /**
     * Creates the main window's contents
     * 
     * @param parent the main window
     * @return Control
     */
    protected Control createContents(Composite parent) {
        Composite composite = new Composite(parent, SWT.NONE);
        composite.setLayout(new GridLayout(5, true));

        // Create a big text box for the message text
        final Text text = new Text(composite, SWT.MULTI | SWT.BORDER | SWT.V_SCROLL);
        GridData data = new GridData(GridData.FILL_BOTH);
        data.horizontalSpan = 5;
        text.setLayoutData(data);

        // Create the Confirm button
        Button confirm = new Button(composite, SWT.PUSH);
        confirm.setText("Confirm");
        confirm.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

        // Create the Error button
        Button error = new Button(composite, SWT.PUSH);
        error.setText("Error");
        error.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

        // Create the Information button
        Button information = new Button(composite, SWT.PUSH);
        information.setText("Information");
        information.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

        // Create the Question button
        Button question = new Button(composite, SWT.PUSH);
        question.setText("Question");
        question.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

        // Create the Warning button
        Button warning = new Button(composite, SWT.PUSH);
        warning.setText("Warning");
        warning.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

        // Create the label to display the return value
        final Label label = new Label(composite, SWT.NONE);
        data = new GridData(GridData.FILL_HORIZONTAL);
        data.horizontalSpan = 5;
        label.setLayoutData(data);

        // Save ourselves some typing
        final Shell shell = parent.getShell();

        // Display a Confirmation dialog
        confirm.addSelectionListener(new SelectionAdapter() {
            public void widgetSelected(SelectionEvent event) {
                boolean b = MessageDialog.openConfirm(shell, "Confirm", text.getText());
                label.setText("Returned " + Boolean.toString(b));
            }
        });

        // Display an Error dialog
        error.addSelectionListener(new SelectionAdapter() {
            public void widgetSelected(SelectionEvent event) {
                MessageDialog.openError(shell, "Error", text.getText());
                label.setText("Returned void");
            }
        });

        // Display an Information dialog
        information.addSelectionListener(new SelectionAdapter() {
            public void widgetSelected(SelectionEvent event) {
                MessageDialog.openInformation(shell, "Information", text.getText());
                label.setText("Returned void");
            }
        });

        // Display a Question dialog
        question.addSelectionListener(new SelectionAdapter() {
            public void widgetSelected(SelectionEvent event) {
                boolean b = MessageDialog.openQuestion(shell, "Question", text.getText());
                label.setText("Returned " + Boolean.toString(b));
            }
        });

        // Display a Warning dialog
        warning.addSelectionListener(new SelectionAdapter() {
            public void widgetSelected(SelectionEvent event) {
                MessageDialog.openWarning(shell, "Warning", text.getText());
                label.setText("Returned void");
            }
        });

        return composite;
    }

    /**
     * The application entry point
     * 
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        new SendMessage().run();
    }
}