mydesktop.java

用applet生成网页。直接在applet上拖动鼠标

package mydesktop;

import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import javax.swing.*;
import java.util.*;
import java.io.*;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2006</p>
 * <p>Company: </p>
 * @author not attributable
 * @version 1.0
 */

public class MyDeskTop extends Applet {
  private boolean isStandalone = false;
  BorderLayout borderLayout1 = new BorderLayout();
  JPanel DeskTopPane = new JPanel();
  JPanel toolPane = new JPanel();
  JButton butPromulgate = new JButton("发布网页");
  JComboBox jcmb = new JComboBox(new String[]{"文本","超级连接","图片"});
  Rect rect=new Rect();
  Vector vetText=new Vector();
  textMouseAdapter textAdapter=new textMouseAdapter(this);
  textMouseMotionAdapter textMotionAdapter=new textMouseMotionAdapter(this);
  int startx=0;
  int starty=0;
  int potW=8;
  int potH=8;
  int potx=0,poty=0;
  JComponent selectedObj=null;
  JComponent jcomp = null;
  JPanel potRB=new JPanel();
  JPanel potRB1=new JPanel();//左上角
  JPanel potRB2=new JPanel();//左下角
  JPanel potRB3=new JPanel();//左中
  JPanel potRB4=new JPanel();//右上角
  JPanel potRB5=new JPanel();//右中
  JPanel potRB6=new JPanel();//上中
  JPanel potRB7=new JPanel();//下中
  //Get a parameter value
  public String getParameter(String key, String def) {
    return isStandalone ? System.getProperty(key, def) :
      (getParameter(key) != null ? getParameter(key) : def);
  }

  //Construct the applet
  public MyDeskTop() {
  }
  //Initialize the applet
  public void init() {
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  //Component initialization
  private void jbInit() throws Exception {
    this.potRB.setBackground(Color.black);
    this.potRB.setBounds(0,0,potW,potH);
    potRB.addMouseListener(new MyDeskTop_potRB_mouseAdapter(this,potRB));
    potRB.addMouseMotionListener(new MyDeskTop_potRB_mouseMotionAdapter(this,potRB));
    this.potRB.setVisible(false);
    this.DeskTopPane.add(potRB,null);
    
    //左上角
    this.potRB1.setBackground(Color.black);
    this.potRB1.setBounds(0,0,potW,potH);
    potRB1.addMouseListener(new MyDeskTop_potRB_mouseAdapter(this,potRB1));
    potRB1.addMouseMotionListener(new MyDeskTop_potRB_mouseMotionAdapter(this,potRB1));
    this.potRB1.setVisible(false);
    this.DeskTopPane.add(potRB1,null);
    //左下角
    this.potRB2.setBackground(Color.black);
    this.potRB2.setBounds(0,0,potW,potH);
    potRB2.addMouseListener(new MyDeskTop_potRB_mouseAdapter(this,potRB2));
    potRB2.addMouseMotionListener(new MyDeskTop_potRB_mouseMotionAdapter(this,potRB2));
    this.potRB2.setVisible(false);
    this.DeskTopPane.add(potRB2,null);
    //
    this.potRB3.setBackground(Color.black);
    this.potRB3.setBounds(0,0,potW,potH);
    potRB3.addMouseListener(new MyDeskTop_potRB_mouseAdapter(this,potRB3));
    potRB3.addMouseMotionListener(new MyDeskTop_potRB_mouseMotionAdapter(this,potRB3));
    this.potRB3.setVisible(false);
    this.DeskTopPane.add(potRB3,null);
    //
    this.potRB4.setBackground(Color.black);
    this.potRB4.setBounds(0,0,potW,potH);
    potRB4.addMouseListener(new MyDeskTop_potRB_mouseAdapter(this,potRB4));
    potRB4.addMouseMotionListener(new MyDeskTop_potRB_mouseMotionAdapter(this,potRB4));
    this.potRB4.setVisible(false);
    this.DeskTopPane.add(potRB4,null);
    //
    this.potRB5.setBackground(Color.black);
    this.potRB5.setBounds(0,0,potW,potH);
    potRB5.addMouseListener(new MyDeskTop_potRB_mouseAdapter(this,potRB5));
    potRB5.addMouseMotionListener(new MyDeskTop_potRB_mouseMotionAdapter(this,potRB5));
    this.potRB5.setVisible(false);
    this.DeskTopPane.add(potRB5,null);
    //
    this.potRB6.setBackground(Color.black);
    this.potRB6.setBounds(0,0,potW,potH);
    potRB6.addMouseListener(new MyDeskTop_potRB_mouseAdapter(this,potRB6));
    potRB6.addMouseMotionListener(new MyDeskTop_potRB_mouseMotionAdapter(this,potRB6));
    this.potRB6.setVisible(false);
    this.DeskTopPane.add(potRB6,null);
    //
    this.potRB7.setBackground(Color.black);
    this.potRB7.setBounds(0,0,potW,potH);
    potRB7.addMouseListener(new MyDeskTop_potRB_mouseAdapter(this,potRB7));
    potRB7.addMouseMotionListener(new MyDeskTop_potRB_mouseMotionAdapter(this,potRB7));
    this.potRB7.setVisible(false);
    this.DeskTopPane.add(potRB7,null);
    
    this.setLayout(borderLayout1);
    DeskTopPane.setBackground(Color.pink);

    DeskTopPane.addMouseMotionListener(new MyDeskTop_DeskTopPane_mouseMotionAdapter(this));
    DeskTopPane.addMouseListener(new MyDeskTop_DeskTopPane_mouseAdapter(this));
    DeskTopPane.setLayout(null);
    rect.setDoubleBuffered(false);
    this.add(DeskTopPane,  BorderLayout.CENTER);
    this.add(toolPane,BorderLayout.SOUTH);
    toolPane.add(jcmb);
    toolPane.add(butPromulgate);
    butPromulgate.addActionListener(new ActionListener(){
    	public void actionPerformed(ActionEvent ae){
    		String content="";
    		for(int i=0;i<vetText.size();i++){
    			if(vetText.elementAt(i) instanceof MyLink){
    				content+="<table border=0 style='position:absolute;left:"+((MyLink)vetText.elementAt(i)).getX()+";top:"+((MyLink)vetText.elementAt(i)).getY()+";width:"+((MyLink)vetText.elementAt(i)).getWidth()+";height:"+((MyLink)vetText.elementAt(i)).getHeight()+"'>";
    				content+="<tr><td>";
    				content+="<a href='"+((MyLink)vetText.elementAt(i)).getUrlText()+"'>"+((MyLink)vetText.elementAt(i)).getText()+"</a>";
    				content+="<td></tr></table>";
    			}
    			else if(vetText.elementAt(i) instanceof MyPicture){
    				content+="<table border=0 style='position:absolution;left:"+((MyPicture)vetText.elementAt(i)).getX()+";top:"+((MyPicture)vetText.elementAt(i)).getY()+";width:"+((MyPicture)vetText.elementAt(i)).getWidth()+";height:"+((MyPicture)vetText.elementAt(i)).getHeight()+"'>";
    				content+="<tr><td><img src='";
    				content+=((MyPicture)vetText.elementAt(i)).getPicture();
    				content+="'><td></tr></table>";
    			}
    			else if(vetText.elementAt(i) instanceof JLabel){
    				content+="<table border=0 style='position:absolution;left:"+((JLabel)vetText.elementAt(i)).getX()+";top:"+((JLabel)vetText.elementAt(i)).getY()+";width:"+((JLabel)vetText.elementAt(i)).getWidth()+";height:"+((JLabel)vetText.elementAt(i)).getHeight()+"'>";
    				content+="<tr><td>";
    				content+=((JLabel)vetText.elementAt(i)).getText();
    				content+="<td></tr></table>";
    			}
    			
    		}
    		File file=new File("G:/java/WorkSpace/MyDesktop/mydesktop/desktop.html");
    		if(file.exists()){
    			file.delete();
    		}
    		try{
    			file.createNewFile();
    			FileOutputStream out = new FileOutputStream(file);
    			out.write(content.getBytes());
    			out.flush();
    			out.close();
    		}
    		catch(Exception e){
    			e.printStackTrace();
    		}
    	}
    });
    rect.setBounds(new Rectangle(152, 46, 100, 100));
    DeskTopPane.add(rect, null);
    rect.setVisible(false);
  }
  //Get Applet information
  public String getAppletInfo() {
    return "Applet Information";
  }
  //Get parameter info
  public String[][] getParameterInfo() {
    return null;
  }

  void DeskTopPane_mousePressed(MouseEvent e) {//按下容器
     rect.setVisible(true);
     rect.setLocation(e.getX(),e.getY());
     rect.setSize(0,0);
     this.potRB.setVisible(false);
     this.potRB1.setVisible(false);
     this.potRB2.setVisible(false);
     this.potRB3.setVisible(false);
     this.potRB4.setVisible(false);
     this.potRB5.setVisible(false);
     this.potRB6.setVisible(false);
     this.potRB7.setVisible(false);
     selectedObj=null;
  }

  void DeskTopPane_mouseDragged(MouseEvent e) {
	  rect.setSize(e.getX()-rect.getX(),e.getY()-rect.getY());
  }

  void DeskTopPane_mouseReleased(MouseEvent e) {
     //鼠标释放
	  MyLink myLink = new MyLink();
      JLabel jlb=new JLabel();
      MyPicture picture = new MyPicture();
	  if(this.jcmb.getSelectedIndex() == 1){//超连接
		  jcomp = myLink;
		  rect.setVisible(false);
		  myLink.setBounds(rect.getX(),rect.getY(),rect.getWidth(),rect.getHeight());
	      this.DeskTopPane.add(myLink);
	      myLink.setBorder(BorderFactory.createLineBorder(Color.black));//设置边框
	      myLink.setText("文本对象");
	      myLink.addMouseListener(this.textAdapter);
	      myLink.addMouseMotionListener(this.textMotionAdapter);
	      vetText.addElement(myLink);
	  }
	  else if(this.jcmb.getSelectedIndex() == 0){//文本
		  jcomp = jlb;
		  rect.setVisible(false);
	      jlb.setBounds(rect.getX(),rect.getY(),rect.getWidth(),rect.getHeight());
	      this.DeskTopPane.add(jlb);
	      jlb.setBorder(BorderFactory.createLineBorder(Color.black));//设置边框
	      jlb.setText("文本对象");
	      jlb.addMouseListener(this.textAdapter);
	      jlb.addMouseMotionListener(this.textMotionAdapter);
	      vetText.addElement(jlb);
	  }
	  else if(this.jcmb.getSelectedIndex() == 2){//图片
		  jcomp = picture;
		  rect.setVisible(false);
		  picture.setBounds(rect.getX(),rect.getY(),rect.getWidth(),rect.getHeight());
	      this.DeskTopPane.add(picture);
	      picture.setBorder(BorderFactory.createLineBorder(Color.black));//设置边框
	      picture.setPicture("images/1.gif");
	      picture.addMouseListener(this.textAdapter);
	      picture.addMouseMotionListener(this.textMotionAdapter);
	      vetText.addElement(picture);
	  }
      
  }
  void textPressed(MouseEvent e){//文本按下
//    System.out.println("文本按下"+e.getX());
    startx=e.getX();
    starty=e.getY();
	JComponent jComponent ;
	jComponent=(JComponent)e.getSource();//取得按下的文本对象
    this.potRB.setVisible(true);
    this.potRB.setLocation(jComponent.getX()+jComponent.getWidth()-potRB.getWidth()/2,
                           jComponent.getY()+jComponent.getHeight()-potRB.getHeight()/2);
    this.potRB1.setVisible(true);
    this.potRB1.setLocation(jComponent.getX()-potRB1.getWidth()/2,
                           jComponent.getY()-potRB1.getHeight()/2);
    this.potRB2.setVisible(true);
    this.potRB2.setLocation(jComponent.getX()-potRB2.getWidth()/2,
                           jComponent.getY()+jComponent.getHeight()-potRB2.getHeight()/2);
    this.potRB3.setVisible(true);
    this.potRB3.setLocation(jComponent.getX()-potRB3.getWidth()/2,
                           jComponent.getY()+jComponent.getHeight()/2-potRB3.getHeight()/2);
    this.potRB4.setVisible(true);
    this.potRB4.setLocation(jComponent.getX()+jComponent.getWidth()-potRB4.getWidth()/2,
                           jComponent.getY()-potRB4.getHeight()/2);
    this.potRB5.setVisible(true);
    this.potRB5.setLocation(jComponent.getX()+jComponent.getWidth()-potRB5.getWidth()/2,
                           jComponent.getY()+jComponent.getHeight()/2-potRB5.getHeight()/2);
    this.potRB6.setVisible(true);
    this.potRB6.setLocation(jComponent.getX()+jComponent.getWidth()/2-potRB6.getWidth()/2,
                           jComponent.getY()-potRB6.getHeight()/2);
    this.potRB7.setVisible(true);
    this.potRB7.setLocation(jComponent.getX()+jComponent.getWidth()/2-potRB7.getWidth()/2,
                           jComponent.getY()+jComponent.getHeight()-potRB7.getHeight()/2);
    this.selectedObj=jComponent;
  }
  void textMouseClicked(MouseEvent e){
     if(e.getClickCount()==2){
    	 if(selectedObj instanceof MyLink){
    		 MyLinkDialog text=new MyLinkDialog(null,"文本内容",true);
    	        text.setText(((MyLink)selectedObj).getText());
    	        text.setUrlText(((MyLink)selectedObj).getUrlText());
    	        text.setBounds(0,0,300,300);
    	        text.setVisible(true);
    	        String result=text.getText();
    	        ((MyLink)selectedObj).setText(result); 
    	        ((MyLink)selectedObj).setUrlText(text.getUrlText());
    	 }
    	 else if(selectedObj instanceof MyPicture){
    		 MyPictureDialog pictureDialog=new MyPictureDialog(null,"图片",true);
    		 pictureDialog.setPicture(((MyPicture)selectedObj).getPicture());
    		 pictureDialog.setBounds(0,0,300,300);
    		 pictureDialog.setVisible(true);
 	        String result=pictureDialog.urlText.getText();
 	        ((MyPicture)selectedObj).setPicture(result);
    	 }
    	 else if(selectedObj instanceof JLabel){
    		 TDialog text=new TDialog(null,"文本内容",true);
    	        text.setText(((JLabel)selectedObj).getText());
    	        text.setBounds(0,0,300,300);
    	        text.setVisible(true);
    	        String result=text.textArea.getText();
    	        ((JLabel)selectedObj).setText(result);
    	 }
    	
        
     }
  }
  void textMouseReleased(MouseEvent e){//文本释放
    //System.out.println("文本释放");
  }
  void textMouseDragged(MouseEvent e){//文本拖动
      //System.out.println("文本拖动");
	  int width,height;
      JLabel jlb=(JLabel)e.getSource();
      width = jlb.getX()+(e.getX()-startx);
      height = jlb.getY()+(e.getY()-starty);
      if(jlb.getX()<this.DeskTopPane.getX()){
    	  width = this.DeskTopPane.getX();
      }
      if(jlb.getY()<DeskTopPane.getY()){
    	  height = DeskTopPane.getY();
      }
      if(jlb.getX()+jlb.getWidth()>DeskTopPane.getX()+DeskTopPane.getWidth()){
    	  width = DeskTopPane.getX()+DeskTopPane.getWidth()-jlb.getWidth();
      }
      if(jlb.getY()+jlb.getHeight()>DeskTopPane.getY()+DeskTopPane.getHeight()){
    	 height = DeskTopPane.getY()+DeskTopPane.getHeight()-jlb.getHeight();
      }
      jlb.setLocation(width,height);
      //让点跟着动
      potFollow(jlb);