kpad.java

WINDOWS记事本的代码,在JAVA下运行

import javax.swing.*;
import javax.swing.border.*;
import javax.swing.event.*;
import javax.swing.undo.*;
import javax.swing.filechooser.FileFilter;

import java.awt.event.*;
import java.awt.*;
import java.io.*;
import java.text.SimpleDateFormat;
import java.util.*;


public class Kpad extends JFrame{	
	
	JTextArea theArea;
	Color tColor,bColor;
	JScrollPane inputArea;
	JMenuBar MBar;
	UndoManager undo;
	MyUndoManager myUndo;
	JToolBar toolBar;
	JButton undoButton,redoButton;
	JToggleButton boldJtb,italicJtb;
	JPopupMenu Popup1,Popup2;
	JMenuItem undoPop,redoPop;
	JFrame colorf;
	Font newFont;
	JComboBox jcbfont,jcbfontSize;	
	String[] fontSizeStr=new String[500];
	
	
	static final String fontStr[] = GraphicsEnvironment.getLocalGraphicsEnvironment()
    .getAvailableFontFamilyNames();	
	static final String fontAttributeStr[]={"常规","粗体","斜体","粗斜体"};	
	static final String AboutMsg="KpaD Ver 1.0\n\nWritten By WizarKID\n\nhttp://wizarkid.com\nSome Rights Reserved.";
	
	public Kpad(){
		super("KpaD");
		setBounds(100,100,750,500);
		
		buildContent();
		buildMenuBar();
//		buildToolBar();
//		buildPopupMenu();			

		this.addWindowListener(new WindowAdapter(){
			public void windowClosing(WindowEvent e){
				dispose();
				System.exit(0);
			}
		});
	}


	protected void buildContent(){
		theArea=new JTextArea();
		theArea.setLineWrap(false);
		newFont=new Font("宋体",0,12);
		theArea.setFont(newFont);
		theArea.setBorder(BorderFactory.createEmptyBorder(5,5,5,5));
		bColor=new Color(204,204,204);
		tColor=new Color(0,0,0);
		theArea.setBackground(bColor);		
		theArea.setForeground(tColor);		
		myUndo=new MyUndoManager();
		theArea.getDocument().addUndoableEditListener(myUndo);
		inputArea=new JScrollPane(theArea);
		inputArea.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
		inputArea.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS);
		getContentPane().add(inputArea);
		for (int i=0;i<500;i++)
		{
			fontSizeStr[i]=Integer.toString(i+1);
		}
	 
	}

	protected void buildMenuBar(){
		MBar= new JMenuBar();
		MBar.setOpaque(true);
		JMenu mfile=buildFileMenu();
		JMenu medit=buildEditMenu();
		JMenu mform=buildFormMenu();
		JMenu mview=buildViewMenu();
		JMenu mhelp=buildHelpMenu();
		

		mfile.setMnemonic('F');
		
		MBar.add(mfile);
		MBar.add(medit);
		MBar.add(mform);
		MBar.add(mview);
		MBar.add(mhelp);
		setJMenuBar(MBar);
	}

/*	protected void buildToolBar(){
		toolBar=new JToolBar();
		toolBar.setFloatable(true);

		JButton JB;
		JB=toolBar.add(new ActionSet("新建",new ImageIcon(getClass().getResource("icons/new.png"))));
		JB.setActionCommand("New");
		JB.setToolTipText("新建");		
		JB=toolBar.add(new ActionSet("打开",new ImageIcon(getClass().getResource("icons/open.png"))));
		JB.setActionCommand("Open");
		JB.setToolTipText("打开");		
		toolBar.addSeparator();

		JB=toolBar.add(new ActionSet("另存为",new ImageIcon(getClass().getResource("icons/save.png"))));
		JB.setActionCommand("Save");
		JB.setToolTipText("另存为");		
		toolBar.addSeparator();		
		
		JB=toolBar.add(new ActionSet("剪切",new ImageIcon(getClass().getResource("icons/cut.png"))));
		JB.setActionCommand("Cut");
		JB.setToolTipText("剪切");
		JB=toolBar.add(new ActionSet("复制",new ImageIcon(getClass().getResource("icons/copy.png"))));
		JB.setActionCommand("Copy");
		JB.setToolTipText("复制");
		JB=toolBar.add(new ActionSet("粘贴",new ImageIcon(getClass().getResource("icons/paste.png"))));
		JB.setActionCommand("Paste");
		JB.setToolTipText("粘贴");
		toolBar.addSeparator();
		
		undoButton=new JButton(new ActionSet(null,new ImageIcon(getClass().getResource("icons/undo.png"))));
		toolBar.add(undoButton);
		undoButton.setActionCommand("Undo");
		undoButton.setToolTipText("撤消");
		undoButton.setEnabled(false);
		redoButton=new JButton(new ActionSet(null,new ImageIcon(getClass().getResource("icons/redo.png"))));
		toolBar.add(redoButton);
		redoButton.setActionCommand("Redo");
		redoButton.setToolTipText("恢复");
		redoButton.setEnabled(false);
		toolBar.addSeparator();		
		
		
		boldJtb=new JToggleButton(new ActionSet(null,new ImageIcon(getClass().getResource("icons/bold.png"))));
		boldJtb.setActionCommand("Bold");
		boldJtb.setToolTipText("粗体");
		toolBar.add(boldJtb);
		italicJtb=new JToggleButton(new ActionSet(null,new ImageIcon(getClass().getResource("icons/italic.png"))));
		italicJtb.setActionCommand("Italic");
		italicJtb.setToolTipText("斜体");
		toolBar.add(italicJtb);		
		toolBar.addSeparator();
		
		JB=toolBar.add(new ActionSet("颜色",new ImageIcon(getClass().getResource("icons/changecolor.png"))));
		JB.setActionCommand("ChangeColor");
		JB.setToolTipText("文字颜色");		
		toolBar.addSeparator();
			
		
		jcbfont=new JComboBox(fontStr);
		jcbfont.setSelectedIndex(getOldFontIndex());
		jcbfont.addItemListener(new ItemListener(){
			public void itemStateChanged(ItemEvent ie)
			{
				String newFontName=(String)ie.getItem();
				int oldAttributeIndex=getOldAttributeIndex(),oldFontSizeIndex=getOldSizeIndex();
				theArea.setFont(new Font(newFontName,oldAttributeIndex,Integer.parseInt(fontSizeStr[oldFontSizeIndex])));
			}
		});
		toolBar.add(jcbfont);
		toolBar.addSeparator();
		toolBar.add(new JLabel(new ImageIcon(getClass().getResource("icons/tt.png"))));
		toolBar.addSeparator();
		jcbfontSize=new JComboBox(fontSizeStr);
		jcbfontSize.setSelectedIndex(getOldSizeIndex());
		jcbfontSize.setEditable(true);
		jcbfontSize.addItemListener(new ItemListener(){
			public void itemStateChanged(ItemEvent ie)
			{
				if(ie.getStateChange()==ItemEvent.SELECTED)
				{
				int oldFontIndex=getOldFontIndex(),oldAttributeIndex=getOldAttributeIndex(),newFontSize;
				try{
					newFontSize=Integer.parseInt((String)ie.getItem());
					theArea.setFont(new Font(fontStr[oldFontIndex],oldAttributeIndex,newFontSize));
				}catch(NumberFormatException ex){		
				}	
				}
			}
		});
		jcbfontSize.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent ae)
			{
				
					int oldFontIndex=getOldFontIndex(),oldAttributeIndex=getOldAttributeIndex(),oldSizeIndex=getOldSizeIndex();
					int newFontSize=oldSizeIndex;
					String tmp=(String)jcbfontSize.getSelectedItem();
					try{
						newFontSize=Integer.parseInt(tmp);
						theArea.setFont(new Font(fontStr[oldFontIndex],oldAttributeIndex,newFontSize));						
					}catch(NumberFormatException ex){
						JOptionPane.showMessageDialog(null, "必须输入整数！", "输入错误", JOptionPane.ERROR_MESSAGE);
						jcbfontSize.setSelectedIndex(oldSizeIndex);
						theArea.setFont(new Font(fontStr[oldFontIndex],oldAttributeIndex,oldSizeIndex));
					}					
				
			}
		});
		toolBar.add(jcbfontSize);
		
		
		
		
		
		
		
		
		getContentPane().add(toolBar,BorderLayout.NORTH);
	}  

    protected void buildPopupMenu(){
    	PopupPanel1 pp1=new PopupPanel1();
    	PopupPanel2 pp2=new PopupPanel2();
    	getContentPane().add(pp1,BorderLayout.SOUTH);
    	toolBar.add(pp2);
    	pp1.setVisible(false);    	
    	pp2.setVisible(false);    	
    }
*/
	
    public JMenu buildFileMenu(){
		JMenu file=new JMenu("文件(F)");
		JMenuItem newf=file.add(new ActionSet("新建(N)",null));
		JMenuItem open=file.add(new ActionSet("打开(O)...",null));
		JMenuItem save=file.add(new ActionSet("另存为(S)",null));
		JMenuItem quit=file.add(new ActionSet("退出(X)",null));
		
		newf.setMnemonic('N');
		open.setMnemonic('O');
		save.setMnemonic('S');
		quit.setMnemonic('X');

		newf.setAccelerator(KeyStroke.getKeyStroke('N',java.awt.Event.CTRL_MASK,false));
		open.setAccelerator(KeyStroke.getKeyStroke('O',java.awt.Event.CTRL_MASK,false));
		save.setAccelerator(KeyStroke.getKeyStroke('S',java.awt.Event.CTRL_MASK,false));
		
		newf.setActionCommand("New");
		open.setActionCommand("Open");
		save.setActionCommand("Save");
		quit.setActionCommand("Quit");

		file.add(newf);
		file.add(open);
		file.add(save);
		file.addSeparator();
		file.add(quit);
		return file;
    }

    public JMenu buildEditMenu(){
    	JMenu edit=new JMenu("编辑(E)");
		JMenuItem undo=edit.add(new ActionSet("撤消(U)",null));
		JMenuItem redo=edit.add(new ActionSet("恢复(R)",null));		
		JMenuItem cut=edit.add(new ActionSet("剪切(T)",null));
		JMenuItem copy=edit.add(new ActionSet("复制(C)",null));
		JMenuItem paste=edit.add(new ActionSet("粘贴(P)",null));
		
		JMenuItem selectAll=edit.add(new ActionSet("全选(A)",null));
		JMenuItem timeAndDate=edit.add(new ActionSet("时间/日期(D)",null));
		
		undo.setMnemonic('U');
		redo.setMnemonic('R');
		cut.setMnemonic('T');
		copy.setMnemonic('C');
		paste.setMnemonic('P');		
		selectAll.setMnemonic('A');
		timeAndDate.setMnemonic('D');		
		

		undo.setAccelerator(KeyStroke.getKeyStroke('Z',Event.CTRL_MASK,false));
		redo.setAccelerator(KeyStroke.getKeyStroke('Y',Event.CTRL_MASK,false));
		cut.setAccelerator(KeyStroke.getKeyStroke('X',Event.CTRL_MASK,false));
		copy.setAccelerator(KeyStroke.getKeyStroke('C',Event.CTRL_MASK,false));
		paste.setAccelerator(KeyStroke.getKeyStroke('V',Event.CTRL_MASK,false));		
		selectAll.setAccelerator(KeyStroke.getKeyStroke('A',Event.CTRL_MASK,false));
		timeAndDate.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F5,0));

		undo.setActionCommand("Undo");
		redo.setActionCommand("Redo");
		cut.setActionCommand("Cut");
		copy.setActionCommand("Copy");
		paste.setActionCommand("Paste");		
		selectAll.setActionCommand("SelectAll");
		timeAndDate.setActionCommand("TimeAndDate");
		

		edit.add(undo);
		edit.add(redo);
		edit.addSeparator();
		edit.add(cut);
		edit.add(copy);
		edit.add(paste);
		edit.addSeparator();
		edit.add(selectAll);
		edit.add(timeAndDate);
		return edit;
    	
    }
    
    public JMenu buildFormMenu(){
    	JMenu form=new JMenu("格式(O)");
    	JCheckBoxMenuItem autoWrap=new JCheckBoxMenuItem(new ActionSet("自动换行(W)",null));
    	form.add(autoWrap);
		JMenuItem font=form.add(new ActionSet("    字体(F)...",null));
		JMenuItem color=form.add(new ActionSet("    文字颜色(C)...",null));
		JMenuItem backColor=form.add(new ActionSet("    背景颜色(B)...",null));
		
		autoWrap.setMnemonic('W');
		font.setMnemonic('F');
		color.setMnemonic('C');
		backColor.setMnemonic('B');
		
		autoWrap.setActionCommand("AutoWrap");
		font.setActionCommand("Font");
		color.setActionCommand("ChangeColor");
		backColor.setActionCommand("ChangeBackColor");
		
		form.add(autoWrap);
		form.add(font);
		form.add(color);
		form.add(backColor);
		
		return form;
		
    }
    
    public JMenu buildViewMenu(){
    	JMenu view=new JMenu("查看(V)");
    	JCheckBoxMenuItem toolBar=new JCheckBoxMenuItem(new ActionSet("工具栏(L)",null));    
    	toolBar.setSelected(true);
		
		toolBar.setMnemonic('L');
		
		toolBar.setActionCommand("ShowToolBar");
		
		view.add(toolBar);
				
		return view;
    }
	
    public JMenu buildHelpMenu(){
    	JMenu help=new JMenu("帮助(H)");
    	JMenuItem mainHelp=help.add(new ActionSet("帮助主题(H)",null));    	
		JMenuItem about=help.add(new ActionSet("关于(A)",null));
		
		mainHelp.setMnemonic('H');		
		about.setMnemonic('A');
		
		mainHelp.setActionCommand("MainHelp");
		about.setActionCommand("About");
		
		help.add(mainHelp);
		help.add(about);		
		
		return help;
    }
    
    
    public void openDocument(){
		JFileChooser chooser=new JFileChooser();
		chooser.addChoosableFileFilter(new JAVAFileFilter("txt"));
		File file=null;
		int result=chooser.showOpenDialog(this);
		
		chooser.setApproveButtonText("确定");
		chooser.setDialogTitle("打开文件");
				
		if(result==chooser.APPROVE_OPTION)
		{
			theArea.setText("");