DumbUser.java Source code

Introduction

Here is the source code for DumbUser.java

Source

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

/**
 * This class demonstrates JFace's IconAndMessageDialog class
 */
public class DumbUser extends ApplicationWindow {
    /**
     * DumbUser constructor
     */
    public DumbUser() {
        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();
    }

    /**
     * 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(1, true));

        // Create the button
        Button show = new Button(composite, SWT.NONE);
        show.setText("Show");

        final Shell shell = parent.getShell();

        // Display the dialog
        show.addSelectionListener(new SelectionAdapter() {
            public void widgetSelected(SelectionEvent event) {
                // Create and show the dialog
                DumbMessageDialog dlg = new DumbMessageDialog(shell);
                dlg.open();
            }
        });

        parent.pack();
        return composite;
    }

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

/**
 * This class demonstrates the IconAndMessageDialog class
 */
class DumbMessageDialog extends IconAndMessageDialog {
    public static final int I_DUNNO_ID = IDialogConstants.CLIENT_ID;
    public static final String I_DUNNO_LABEL = "I Dunno";

    // The image
    private Image image;

    // The label for the "hidden" message
    private Label label;

    /**
     * DumbMessageDialog constructor
     * 
     * @param parent the parent shell
     */
    public DumbMessageDialog(Shell parent) {
        super(parent);

        // Create the image
        try {
            image = new Image(parent.getDisplay(), new FileInputStream("java2s.gif"));
        } catch (FileNotFoundException e) {
        }

        // Set the default message
        message = "Are you sure you want to do something that dumb?";
    }

    /**
     * Sets the message
     * 
     * @param message the message
     */
    public void setMessage(String message) {
        this.message = message;
    }

    /**
     * Closes the dialog
     * 
     * @return boolean
     */
    public boolean close() {
        if (image != null)
            image.dispose();
        return super.close();
    }

    /**
     * Creates the dialog area
     * 
     * @param parent the parent composite
     * @return Control
     */
    protected Control createDialogArea(Composite parent) {
        createMessageArea(parent);

        // Create a composite to hold the label
        Composite composite = new Composite(parent, SWT.NONE);
        GridData data = new GridData(GridData.FILL_BOTH);
        data.horizontalSpan = 2;
        composite.setLayoutData(data);
        composite.setLayout(new FillLayout());

        // Create the label for the "hidden" message
        label = new Label(composite, SWT.LEFT);

        return composite;
    }

    /**
     * Creates the buttons
     * 
     * @param parent the parent composite
     */
    protected void createButtonsForButtonBar(Composite parent) {
        createButton(parent, IDialogConstants.YES_ID, IDialogConstants.YES_LABEL, true);
        createButton(parent, IDialogConstants.NO_ID, IDialogConstants.NO_LABEL, false);
        createButton(parent, I_DUNNO_ID, I_DUNNO_LABEL, false);
    }

    /**
     * Handles a button press
     * 
     * @param buttonId the ID of the pressed button
     */
    protected void buttonPressed(int buttonId) {
        // If they press I Dunno, close the dialog
        if (buttonId == I_DUNNO_ID) {
            setReturnCode(buttonId);
            close();
        } else {
            // Otherwise, have some fun
            label.setText("Yeah, right. You know nothing.");
        }
    }

    /**
     * Gets the image to use
     */
    protected Image getImage() {
        return image;
    }
}