aboutdialog.java

电子白板有两种实现模型,一种是无白板服务器

import java.net.*;
import java.io.*;
import java.awt.*;
import java.util.*;
import java.applet.*;

//class 6:"AboutDialog"，服务器"关于"对话框
public class AboutDialog extends Dialog {
	void okButton_Clicked(Event event) {
		//{{CONNECTION
		// Clicked from okButton Hide the Dialog
		hide();
		//}}
	}

	public AboutDialog(Frame parent, boolean modal) {

	 super(parent, modal);
   //setIconImage(icon);
  	//{{INIT_CONTROLS
		setLayout(null);
		addNotify();
		resize(insets().left + insets().right + 249,
       insets().top + insets().bottom + 170);
		label1 = new java.awt.Label("Chat&WhiteBoard Server 1.0",Label.CENTER);
		label1.reshape(insets().left + 36,
     insets().top + 12,166,21);
		add(label1);
		label2 = new java.awt.Label
    ("佛山锦城科技有限公司",Label.CENTER);
		label2.reshape(insets().left + 36, 
      insets().top + 36,168,24);
		add(label2);
		okButton = new java.awt.Button("OK");
		okButton.reshape(insets().left + 96,
     insets().top + 132,66,27);
		add(okButton);
		label3 = new java.awt.Label
     ("技术研发部",Label.CENTER);
		label3.reshape(insets().left + 36,
       insets().top + 60,168,24);
		add(label3);
		label4 = new java.awt.Label("(c)版权所有",Label.CENTER);
		label4.reshape(insets().left + 24,insets().top + 84,192,24);
		add(label4);
		label5 = new java.awt.Label("2002年12月",Label.CENTER);
		label5.reshape(insets().left + 72,insets().top + 108,96,24);
		add(label5);
		setTitle("About");
		setResizable(false);
		//}}
	}

	public AboutDialog(Frame parent, 
      String title, boolean modal) {
	  this(parent, modal);
	  setTitle(title);
	}

  public synchronized void show() {
  	Rectangle bounds = getParent().bounds();
  	Rectangle abounds = bounds();

  	move(bounds.x + (bounds.width - abounds.width)/ 2,
  	   bounds.y + (bounds.height - abounds.height)/2);

  	super.show();
  }

	public boolean handleEvent(Event event) {
	  if(event.id == Event.WINDOW_DESTROY) {
	    hide();
	    return true;
	  }
		if (event.target == okButton && event.id
     == Event.ACTION_EVENT) {
			okButton_Clicked(event);
		}
		return super.handleEvent(event);
	}

	//{{DECLARE_CONTROLS
	java.awt.Label label1;
	java.awt.Label label2;
	java.awt.Button okButton;
	java.awt.Label label3;
	java.awt.Label label4;
	java.awt.Label label5;
	//}}
}