questiondialogtest.java

awt图形界面的生成

import java.awt.*;
import java.awt.event.*;
import java.applet.Applet;

public class QuestionDialogTest extends Applet  {
	public void init() {
		setLayout(new BorderLayout());
		add(new QuestionDialogLauncher(this), "Center");
	}
}
class QuestionDialogLauncher extends Panel 
							implements DialogClient, 
							ActionListener {
	private Applet         applet;
	private QuestionDialog questionDialog;
	private Image          image = null;
	private Checkbox       modal = new Checkbox("modal");

	private Button questionDialogButton;

	public QuestionDialogLauncher(Applet applet) {
		this.applet = applet;

		add(modal);
		add(questionDialogButton = 
					new Button("Launch Question Dialog"));

		questionDialogButton.addActionListener(this);
	}
	public void actionPerformed(ActionEvent event) {
		Image image = applet.getImage(applet.getCodeBase(),
			                          "gifs/book.gif");
		if(questionDialog == null) {
			questionDialog = 
					new QuestionDialog(Util.getFrame(this), this,
							"Example Question Dialog", 
							"Book Of The Month:  ", 
							"The Hobbit", 
							45, image, modal.getState());
		}
		if(modal.getState()) questionDialog.setModal(true);
		else                 questionDialog.setModal(false);

		questionDialog.setVisible(true);
	}
	public void dialogDismissed(Dialog d) {
		if(questionDialog.wasCancelled())
			applet.showStatus("CANCELLED"); 
		else 
			applet.showStatus("Book Of The Month:  " + 

		questionDialog.getTextField().getText());
	}
	public void dialogCancelled(Dialog d) {
		applet.showStatus("Dialog Cancelled");
	}
}