Java by API/org.eclipse.jface.dialogs/IDialogConstants

IDialogConstants.NO_ID

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.IInputValidator;
import org.eclipse.jface.dialogs.IconAndMessageDialog;
import org.eclipse.jface.window.ApplicationWindow;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.ruposite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
public class MainClass extends ApplicationWindow {
  public MainClass() {
    super(null);
  }
  public void run() {
    setBlockOnOpen(true);
    open();
    Display.getCurrent().dispose();
  }
  protected void configureShell(Shell shell) {
    super.configureShell(shell);
    shell.setText("Send Message");
    shell.setSize(500, 400);
    MyMessageDialog dlg = new MyMessageDialog(shell);
    dlg.open();
  }
  public static void main(String[] args) {
    new MainClass().run();
  }
}

class MyMessageDialog extends IconAndMessageDialog {
  public static final int MyID = IDialogConstants.CLIENT_ID;
  public static final String MyLABEL = "Custom";
  private Image image;
  private Label label;
  public MyMessageDialog(Shell parent) {
    super(parent);
    try {
      image = new Image(parent.getDisplay(), new FileInputStream("images/loser.gif"));
    } catch (FileNotFoundException e) {
    }
    message = "message";
  }
  public void setMessage(String message) {
    this.message = message;
  }
  public boolean close() {
    if (image != null)
      image.dispose();
    return super.close();
  }
  protected Control createDialogArea(Composite parent) {
    createMessageArea(parent);
    Composite composite = new Composite(parent, SWT.NONE);
    GridData data = new GridData(GridData.FILL_BOTH);
    data.horizontalSpan = 2;
    composite.setLayoutData(data);
    composite.setLayout(new FillLayout());
    label = new Label(composite, SWT.LEFT);
    return 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, MyID, MyLABEL, false);
  }
  protected void buttonPressed(int buttonId) {
    if (buttonId == MyID) {
      setReturnCode(buttonId);
      close();
    } else {
      label.setText("Yeah, right. You know nothing.");
    }
  }
  protected Image getImage() {
    return image;
  }
}

IDialogConstants.YES_ID

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.IInputValidator;
import org.eclipse.jface.dialogs.IconAndMessageDialog;
import org.eclipse.jface.window.ApplicationWindow;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.ruposite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
public class MainClass extends ApplicationWindow {
  public MainClass() {
    super(null);
  }
  public void run() {
    setBlockOnOpen(true);
    open();
    Display.getCurrent().dispose();
  }
  protected void configureShell(Shell shell) {
    super.configureShell(shell);
    shell.setText("Send Message");
    shell.setSize(500, 400);
    MyMessageDialog dlg = new MyMessageDialog(shell);
    dlg.open();
  }
  public static void main(String[] args) {
    new MainClass().run();
  }
}

class MyMessageDialog extends IconAndMessageDialog {
  public static final int MyID = IDialogConstants.CLIENT_ID;
  public static final String MyLABEL = "Custom";
  private Image image;
  private Label label;
  public MyMessageDialog(Shell parent) {
    super(parent);
    try {
      image = new Image(parent.getDisplay(), new FileInputStream("images/loser.gif"));
    } catch (FileNotFoundException e) {
    }
    message = "message";
  }
  public void setMessage(String message) {
    this.message = message;
  }
  public boolean close() {
    if (image != null)
      image.dispose();
    return super.close();
  }
  protected Control createDialogArea(Composite parent) {
    createMessageArea(parent);
    Composite composite = new Composite(parent, SWT.NONE);
    GridData data = new GridData(GridData.FILL_BOTH);
    data.horizontalSpan = 2;
    composite.setLayoutData(data);
    composite.setLayout(new FillLayout());
    label = new Label(composite, SWT.LEFT);
    return 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, MyID, MyLABEL, false);
  }
  protected void buttonPressed(int buttonId) {
    if (buttonId == MyID) {
      setReturnCode(buttonId);
      close();
    } else {
      label.setText("Yeah, right. You know nothing.");
    }
  }
  protected Image getImage() {
    return image;
  }
}