minidrawpad.java

我多年的收集都早里面拉

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


public class MiniDrawPad extends JFrame     
 {
  private ObjectInputStream  input;
  private ObjectOutputStream output; 

  private JButton choices[]={};

  private String names[]={
          "New",
          "Open",
          "Save",    

      

          "Pencil",		
          "Line",		
          "Rect",		
          "fRect",		
          "Oval",		
          "fOval",		
          "Circle",		
          "fCircle",	
          "RoundRect",	
          "frRect",	
          "Rubber",		
          "Color",		
          "Stroke",		
          "Word"		
          };

  private String styleNames[]={
            " 宋体 " , " 隶书 " , " 华文彩云 " , " 仿宋_GB2312 " , " 华文行楷 " ,
            " 方正舒体 " , " Times New Roman " , " Serif " , " Monospaced " ,
            " SonsSerif " , " Garamond "
            };           
                          

  private Icon items[];

  private String tipText[]={
                 
                 
                "Draw a new picture",
                "Open a saved picture",
                "Save current drawing",
                "Draw at will",
                "Draw a straight line",
                "Draw a rectangle",
                "Fill a ractangle",
                "Draw an oval",
                "Fill an oval",
                "Draw a circle",
                "Fill a circle",
                "Draw a round rectangle",
                "Fill a round rectangle",
                "Erase at will",
                "Choose current drawing color",
                "Set current drawing stroke",
                "Write down what u want"
              };

  JToolBar buttonPanel ;		     
  private JLabel statusBar;            

  private DrawPanel drawingArea;     
  private int width=800,height=550;    

  drawings[] itemList=new drawings[5000]; 
  private int currentChoice=3;           
  int index=0;                        
  private Color color=Color.black;     
  int R,G,B;                           

  int f1,f2;                  
  String style1;             
  private float stroke=1.0f; 

  JCheckBox bold,italic;      
                              
  JComboBox styles;

  public MiniDrawPad()       
  {
   super("Drawing Pad");
   JMenuBar bar=new JMenuBar();		
   JMenu fileMenu=new JMenu("File");
   fileMenu.setMnemonic('F');


   JMenuItem newItem=new JMenuItem("New");
   newItem.setMnemonic('N');
   newItem.addActionListener(
          new ActionListener(){
                  public void actionPerformed(ActionEvent e)
                  {
                   newFile();		
                  }
          }
   );
   fileMenu.add(newItem);


   JMenuItem saveItem=new JMenuItem("Save");
   saveItem.setMnemonic('S');
   saveItem.addActionListener(
          new ActionListener(){
                  public void actionPerformed(ActionEvent e)
                  {
                      saveFile();		
                  }
          }
   );
   fileMenu.add(saveItem);


   JMenuItem loadItem=new JMenuItem("Load");
   loadItem.setMnemonic('L');
   loadItem.addActionListener(
          new ActionListener(){
                  public void actionPerformed(ActionEvent e)
                  {
                   loadFile();		
                  }
          }
   );
   fileMenu.add(loadItem);

   fileMenu.addSeparator();


   JMenuItem exitItem=new JMenuItem("Exit");
   exitItem.setMnemonic('X');
   exitItem.addActionListener(
          new ActionListener(){
                  public void actionPerformed(ActionEvent e)
                  {
                   System.exit(0);	
                  }
          }
   );
   fileMenu.add(exitItem);
   bar.add(fileMenu);


   JMenu colorMenu=new JMenu("Color");
   colorMenu.setMnemonic('C');

   JMenuItem colorItem=new JMenuItem("Choose Color");
   colorItem.setMnemonic('O');
   colorItem.addActionListener(
           new ActionListener(){
                   public void actionPerformed(ActionEvent e)
                   {
                    chooseColor();	
                   }
       }
      );
   colorMenu.add(colorItem);
   bar.add(colorMenu);


    JMenu strokeMenu=new JMenu("Stroke");
    strokeMenu.setMnemonic('S');


    JMenuItem strokeItem=new JMenuItem("Set Stroke");
    strokeItem.setMnemonic('K');
    strokeItem.addActionListener(
           new ActionListener(){
                   public void actionPerformed(ActionEvent e)
                    {
                     setStroke();
                     }
                   }
              );
           strokeMenu.add(strokeItem);
           bar.add(strokeMenu);


    JMenu helpMenu=new JMenu("Help");
    helpMenu.setMnemonic('H');

    JMenuItem aboutItem=new JMenuItem("About this Drawing Pad!");
    aboutItem.setMnemonic('A');
    aboutItem.addActionListener(
           new ActionListener(){
                   public void actionPerformed(ActionEvent e)
                    {
                     JOptionPane.showMessageDialog(null,
                        " 制作人：计算机六班 袁佩，谈旭，彭诗节，刘彦斌 ",
                        " 谢谢使用我们的软件 ",
                         JOptionPane.INFORMATION_MESSAGE );
                     }
                   }
              );
    helpMenu.add(aboutItem);
    bar.add(helpMenu);

    items=new ImageIcon[names.length];

//创建各种基本图形的按钮
    drawingArea=new DrawPanel();
    choices=new JButton[names.length];
    buttonPanel = new JToolBar( JToolBar.VERTICAL ) ;
    buttonPanel = new JToolBar( JToolBar.HORIZONTAL) ;
    ButtonHandler handler=new ButtonHandler();
    ButtonHandler1 handler1=new ButtonHandler1();

//导入我们需要的图形图标，这些图标都存放在与源文件相同的目录下面
    for(int i=0;i<choices.length;i++)
    {//items[i]=new ImageIcon( MiniDrawPad.class.getResource(names[i] +".gif"));
                       //如果在jbuilder下运行本程序，则应该用这条语句导入图片
     items[i]=new ImageIcon(names[i] + ".gif");
                   //默认的在jdk或者jcreator下运行，用此语句导入图片
     choices[i]=new JButton("按扭",items[i]);
     choices[i].setToolTipText(tipText[i]);
     buttonPanel.add(choices[i]);
    }

//将动作侦听器加入按钮里面
    for(int i=3;i<choices.length-3;i++)
    {
     choices[i].addActionListener(handler);
    }

    choices[0].addActionListener(
          new ActionListener(){
                  public void actionPerformed(ActionEvent e)
                  {
                   newFile();
                  }
          }
     );

    choices[1].addActionListener(
          new ActionListener(){
                  public void actionPerformed(ActionEvent e)
                  {
                   loadFile();
                  }
          }
     );

    choices[2].addActionListener(
          new ActionListener(){
                  public void actionPerformed(ActionEvent e)
                  {
                   saveFile();
                  }
          }
     );
    choices[choices.length-3].addActionListener(handler1);
    choices[choices.length-2].addActionListener(handler1);
    choices[choices.length-1].addActionListener(handler1);

//字体风格选择
    styles=new JComboBox(styleNames);
    styles.setMaximumRowCount(8);
    styles.addItemListener(
            new ItemListener(){
                    public void itemStateChanged(ItemEvent e)
                    {
                      style1=styleNames[styles.getSelectedIndex()];
                    }
               }
            );
//字体选择
    bold=new JCheckBox("BOLD");
    italic=new JCheckBox("ITALIC");

    checkBoxHandler cHandler=new checkBoxHandler();
    bold.addItemListener(cHandler);
    italic.addItemListener(cHandler);

    JPanel wordPanel=new JPanel();
    buttonPanel.add(bold);
    buttonPanel.add(italic);
    buttonPanel.add(styles);
    styles.setMinimumSize(  new Dimension ( 50, 20 ) );
    styles.setMaximumSize(new Dimension ( 100, 20 ) );

    Container c=getContentPane();
    super.setJMenuBar( bar );
    c.add(buttonPanel,BorderLayout.NORTH);
    c.add(drawingArea,BorderLayout.CENTER);

    statusBar=new JLabel();
    c.add(statusBar,BorderLayout.SOUTH);
    statusBar.setText("     Welcome To our Drawing Pad!!!  :)");

    createNewItem();
    setSize(width,height);

    show();
  }



public class ButtonHandler implements ActionListener
 {
  public void actionPerformed(ActionEvent e)
  {
   for(int j=3;j<choices.length-3;j++)
   {
      if(e.getSource()==choices[j])
         {currentChoice=j;
          createNewItem();
          repaint();}
        }
    }
 }

public class ButtonHandler1 implements ActionListener
 {
  public void actionPerformed(ActionEvent e)
  {
    if(e.getSource()==choices[choices.length-3])
         {chooseColor();}
    if(e.getSource()==choices[choices.length-2])
         {setStroke();}
    if(e.getSource()==choices[choices.length-1])
         {JOptionPane.showMessageDialog(null,
             "Please hit the drawing pad to choose the word input position",
             "Hint",JOptionPane.INFORMATION_MESSAGE );
          currentChoice=14;
          createNewItem();
          repaint();
          }
    }
 }



 class mouseA extends MouseAdapter
 {
   public void mousePressed(MouseEvent e)
    {statusBar.setText("     Mouse Pressed @:[" + e.getX() +
                              ", " + e.getY() + "]");

     itemList[index].x1=itemList[index].x2=e.getX();
     itemList[index].y1=itemList[index].y2=e.getY();

    
    if(currentChoice==3||currentChoice==13)
    {
     itemList[index].x1=itemList[index].x2=e.getX();
     itemList[index].y1=itemList[index].y2=e.getY();
     index++;
     createNewItem();
     }

    
     if(currentChoice==14)
     {
      itemList[index].x1=e.getX();
      itemList[index].y1=e.getY();

      String input;
      input=JOptionPane.showInputDialog(
          "Please input the text you want!");
      itemList[index].s1=input;
      itemList[index].x2=f1;
      itemList[index].y2=f2;
      itemList[index].s2=style1;

      index++;
      currentChoice=14;
      createNewItem();
      drawingArea.repaint();
      }
    }

   public void mouseReleased(MouseEvent e)
    {statusBar.setText("     Mouse Released @:[" + e.getX() +
                              ", " + e.getY() + "]");

    if(currentChoice==3||currentChoice==13)
    {
     itemList[index].x1=e.getX();
     itemList[index].y1=e.getY();
    }
     itemList[index].x2=e.getX();
     itemList[index].y2=e.getY();
     repaint();
     index++;
     createNewItem();
    }

   public void mouseEntered(MouseEvent e)
   {
           statusBar.setText("     Mouse Entered @:[" + e.getX() +
                              ", " + e.getY() + "]");
           }

   public void mouseExited(MouseEvent e)
   {
           statusBar.setText("     Mouse Exited @:[" + e.getX() +
                              ", " + e.getY() + "]");
           }
  }



 class mouseB extends MouseMotionAdapter
 {
  public void mouseDragged(MouseEvent e)
  {statusBar.setText("     Mouse Dragged @:[" + e.getX() +
                              ", " + e.getY() + "]");