import javax.swing.*;
import javax.swing.event.UndoableEditListener;
import javax.swing.undo.CannotUndoException;
import javax.swing.undo.UndoManager;
import java.io.*;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.awt.*;
import java.awt.datatransfer.Clipboard;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.StringSelection;
import java.awt.datatransfer.Transferable;
import java.awt.event.*;
public class TextbookTest extends JFrame implements ActionListener,ItemListener
{
//申明组件*********************************************************
//********************菜单跟菜单项**********
JMenuBar menubar;//菜单条
JMenu menu_file,menu_edit,menu_format,menu_look,menu_help;//菜单
JMenuItem file_open,file_save,file_new,file_asave,file_quit,file_print;//文件菜单项
JMenuItem edit_cut,edit_copy,edit_paste,edit_del,edit_undo,edit_find,edit_findnext,edit_replace,eidt_goto,edit_selectall,edit_date;//编辑菜单项
JMenuItem format_fcolor,format_bcolor,format_bold;//格式菜单项
//查看菜单项
JCheckBoxMenuItem format_linewrap,look_state;
JMenuItem help_help,help_about;//帮助菜单项
//************文本区
JTextArea area;//文本区
//****************************工具栏
Icon newIcon ,openIcon ,saveAsIcon ,printIcon ,undoIcon ;
Icon cutIcon ,copyIcon ,pasteIcon ,deleteIcon,searchIcon;
Icon timeIcon ,fontIcon,boldIcon,italicIcon,bgcolorIcon;
Icon fgcolorIcon,helpIcon,saveIcon;
JButton newButton ,openButton,saveButton,saveAsButton ,printButton ,undoButton;
JButton cutButton ,copyButton, pasteButton,deleteButton ,searchButton,timeButton;
JButton fontButton ,boldButton,italicButton,fgcolorButton,bgcolorButton ,helpButton ;
//*****************浮动菜单***************
JToolBar statusBar ;
JLabel statusLabel1 ,statusLabel2 ,statusLabel3;
//******************************浮动菜单**********
JPopupMenu popupMenu;
JMenuItem popupMenu_Undo,popupMenu_Cut ,popupMenu_Copy,popupMenu_Paste,popupMenu_Delete,popupMenu_SelectAll;
//*************************撤销管理器**************
protected UndoManager undo = new UndoManager();
// protected UndoableEditListener undoHandler = new UndoHandler();
Clipboard clipboard;
//*************************时间日期**************
GregorianCalendar time = new GregorianCalendar();
int hour = time.get(Calendar.HOUR_OF_DAY);
int min = time.get(Calendar.MINUTE);
int second = time.get(Calendar.SECOND);
//************字体*******************
JComboBox box_font,box_style,box_size;
String name="宋体";
int size=20;
int style=0;
Font f=null;
//*******************构造函数********************************
TextbookTest(String s)
{
super(s);
//************菜单
menubar=new JMenuBar();
menu_file=new JMenu("文件(F)",true);
menu_edit=new JMenu("编辑(E)",true);
menu_format=new JMenu("格式(O)",true);
menu_look=new JMenu("查看(V)",true);
menu_help=new JMenu("帮助(H)",true);
menu_file.setMnemonic('f');
menu_edit.setMnemonic('e');
menu_format.setMnemonic('o');
menu_look.setMnemonic('v');
menu_help.setMnemonic('h');
menubar.add(menu_file);
menubar.add(menu_edit);
menubar.add(menu_format);
menubar.add(menu_look);
menubar.add(menu_help);
//********菜单项*************
file_open=new JMenuItem("打开");
file_save=new JMenuItem("保存");
file_new=new JMenuItem("新建");
file_asave=new JMenuItem("另存为");
file_quit=new JMenuItem("退出");
file_print=new JMenuItem("打印");//文件菜单项
edit_cut=new JMenuItem("剪切");
edit_copy=new JMenuItem("复制");
edit_paste=new JMenuItem("粘贴");
edit_del=new JMenuItem("删除");
edit_undo=new JMenuItem("撤销");
edit_find=new JMenuItem("查找");
edit_findnext=new JMenuItem("查找下一处");
edit_replace=new JMenuItem("替换");
eidt_goto=new JMenuItem("转到");
edit_selectall=new JMenuItem("全选");
edit_date=new JMenuItem("日期");//编辑菜单项
format_linewrap=new JCheckBoxMenuItem("自动换行");
JMenu format_color=new JMenu("颜色");
format_fcolor=new JMenuItem("字体颜色");
format_bcolor=new JMenuItem("背景颜色");
format_color.add(format_fcolor);
format_color.add(format_bcolor);
format_bold=new JMenuItem("字体");//格式菜单项
look_state=new JCheckBoxMenuItem("状态");//查看菜单项
help_help=new JMenuItem("帮助");
help_about=new JMenuItem("关于");//帮助菜单项
file_open.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_O,InputEvent.CTRL_MASK));
file_save.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S,InputEvent.CTRL_MASK));
file_new.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_N,InputEvent.CTRL_MASK));
file_asave.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_R,InputEvent.CTRL_MASK));
file_quit.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_Q,InputEvent.CTRL_MASK));
file_print.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_P,InputEvent.CTRL_MASK));
edit_cut.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_X,InputEvent.CTRL_MASK));
edit_copy.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_C,InputEvent.CTRL_MASK));
edit_paste.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_V,InputEvent.CTRL_MASK));
edit_del.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_DELETE,0));
edit_undo.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_Z,InputEvent.CTRL_MASK));
edit_find.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F,InputEvent.CTRL_MASK));
edit_findnext.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F3,0));
edit_replace.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_H,InputEvent.CTRL_MASK));
eidt_goto.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_G,InputEvent.CTRL_MASK));
edit_selectall.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_A,InputEvent.CTRL_MASK));
edit_date.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F5,0));
menu_file.add(file_open);
menu_file.add(file_save);
menu_file.add(file_asave);
menu_file.addSeparator();
menu_file.add(file_print);
menu_file.addSeparator();
menu_file.add(file_quit);
menu_edit.add(edit_undo);
menu_edit.add(edit_cut);
menu_edit.add(edit_copy);
menu_edit.add(edit_paste);
menu_edit.add(edit_del);
menu_edit.addSeparator();
menu_edit.add(edit_find);
menu_edit.add(edit_findnext);
menu_edit.add(edit_replace);
menu_edit.add(eidt_goto);
menu_edit.addSeparator();
menu_edit.add(edit_selectall);
menu_edit.add(edit_date);
menu_format.add(format_linewrap);
menu_format.addSeparator();
menu_format.add(format_color);
menu_format.add(format_bold);
menu_look.add(look_state);
menu_help.add(help_help);
menu_help.addSeparator();
menu_help.add(help_about);
file_open.addActionListener(this);
file_save.addActionListener(this);
file_new.addActionListener(this);
file_asave.addActionListener(this);
file_quit.addActionListener(this);
file_print.addActionListener(this);
edit_cut.addActionListener(this);
edit_copy.addActionListener(this);
edit_paste.addActionListener(this);
edit_del.addActionListener(this);
edit_undo.addActionListener(this);
edit_find.addActionListener(this);
edit_findnext.addActionListener(this);
edit_replace.addActionListener(this);
eidt_goto.addActionListener(this);
edit_selectall.addActionListener(this);
edit_date.addActionListener(this);
format_linewrap.addActionListener(this);
format_fcolor.addActionListener(this);
format_bcolor.addActionListener(this);
format_bold.addActionListener(this);
look_state.addActionListener(this);
help_help.addActionListener(this);
help_about.addActionListener(this);
this.setJMenuBar(menubar);
//****************内容面板***********
Container con=getContentPane();
area=new JTextArea(10,10);
area.requestFocus();
//********文本区*********************
JScrollPane pane=new JScrollPane(area);
pane.setRequestFocusEnabled(true);
con.add(pane);
con.setVisible(true);
//*************************状态栏***************
statusBar = new JToolBar();
statusBar.setLayout(new FlowLayout(FlowLayout.LEFT));
statusLabel1 = new JLabel("开发者：李福春 ");
statusLabel2 = new JLabel(" 当前时间："+hour+":"+min+" "+second);
statusLabel3 = new JLabel(" 当前光标所在行数" /*+ getlineNumber()*/);
statusBar.add(statusLabel1);
statusBar.addSeparator();
statusBar.add(statusLabel2);
statusBar.addSeparator();
statusBar.add(statusLabel3);
con.add(statusBar, BorderLayout.SOUTH);
statusBar.setVisible(false);
//***************************字体控制
box_font=new JComboBox();
box_style=new JComboBox();
box_size=new JComboBox();
GraphicsEnvironment ge=GraphicsEnvironment.getLocalGraphicsEnvironment();
String fontName[]=ge.getAvailableFontFamilyNames();
for(int i=0;i<fontName.length;i++)
{
box_font.addItem(fontName[i]);
}
box_font.addItemListener(this);
int font_size[]=new int[20];
for(int j=10,i=1;j<=80;j+=2,i++)
{
box_size.addItem(j);
}
box_size.addItemListener(this);
box_style.addItem("加粗");
box_style.addItem("斜体");
box_style.addItem("常规");
box_style.addItem("粗斜体");
box_style.addItemListener(this);
box_font.setSelectedItem("宋体");
box_style.setSelectedIndex(2);
box_size.setSelectedIndex(10);
//*************************工具栏*********************
JPanel toolBar = new JPanel();
toolBar.setLayout(new FlowLayout(FlowLayout.LEFT)); newIcon = new ImageIcon("Icons/new.gif");
openIcon = new ImageIcon("Icons/open.gif");
saveIcon = new ImageIcon("Icons/save.gif");
saveAsIcon = new ImageIcon("Icons/saveas.gif");
printIcon = new ImageIcon("Icons/print.gif");
undoIcon = new ImageIcon("Icons/undo.gif");
cutIcon = new ImageIcon("Icons/cut.gif");
copyIcon = new ImageIcon("Icons/copy.gif");
pasteIcon = new ImageIcon("Icons/paste.gif");
deleteIcon = new ImageIcon("Icons/delete.gif");
searchIcon = new ImageIcon("Icons/search.gif");
timeIcon = new ImageIcon("Icons/time.gif");
fontIcon = new ImageIcon("Icons/font.gif");
boldIcon = new ImageIcon("Icons/bold.gif");
italicIcon = new ImageIcon("Icons/italic.gif");
bgcolorIcon = new ImageIcon("Icons/bgcolor.gif");
fgcolorIcon = new ImageIcon("Icons/fgcolor.gif");
helpIcon = new ImageIcon("Icons/help.gif"); newButton = new JButton(newIcon);
openButton = new JButton(openIcon);
saveButton = new JButton(saveIcon);
saveAsButton = new JButton(saveAsIcon);
printButton = new JButton(printIcon);
undoButton = new JButton(undoIcon);
// undoButton.setEnabled(false);
cutButton = new JButton(cutIcon);
// cutButton.setEnabled(false);
copyButton = new JButton(copyIcon);
// copyButton.setEnabled(false);
JButton pasteButton = new JButton(pasteIcon);
// pasteButton.setEnabled(false);
deleteButton = new JButton(deleteIcon);
// deleteButton.setEnabled(false);
searchButton = new JButton(searchIcon);
timeButton = new JButton(timeIcon);
fontButton = new JButton(fontIcon);
boldButton = new JButton(boldIcon);
italicButton = new JButton(italicIcon);
fgcolorButton = new JButton(fgcolorIcon);
bgcolorButton = new JButton(bgcolorIcon);
helpButton = new JButton(helpIcon);
box_font.setPreferredSize(new Dimension(60, 22));
box_size.setPreferredSize(new Dimension(60, 22));
box_style.setPreferredSize(new Dimension(60, 22));
newButton.setPreferredSize(new Dimension(22, 22));
openButton.setPreferredSize(new Dimension(22, 22));
saveButton.setPreferredSize(new Dimension(22, 22));
saveAsButton.setPreferredSize(new Dimension(22, 22));
printButton.setPreferredSize(new Dimension(22, 22));
undoButton.setPreferredSize(new Dimension(22, 22));
cutButton.setPreferredSize(new Dimension(22, 22));
copyButton.setPreferredSize(new Dimension(22, 22));
pasteButton.setPreferredSize(new Dimension(22, 22));
deleteButton.setPreferredSize(new Dimension(22, 22));
searchButton.setPreferredSize(new Dimension(22, 22));
timeButton.setPreferredSize(new Dimension(22, 22));
// fontButton.setPreferredSize(new Dimension(22, 22));
// boldButton.setPreferredSize(new Dimension(22, 22));
italicButton.setPreferredSize(new Dimension(22, 22));
fgcolorButton.setPreferredSize(new Dimension(22, 22));
bgcolorButton.setPreferredSize(new Dimension(22, 22));
helpButton.setPreferredSize(new Dimension(22, 22));
// -----------------------------------注册工具栏按钮事件
newButton.addActionListener(this);
openButton.addActionListener(this);
saveButton.addActionListener(this);
saveAsButton.addActionListener(this);
printButton.addActionListener(this);
undoButton.addActionListener(this);
cutButton.addActionListener(this);
copyButton.addActionListener(this);
pasteButton.addActionListener(this);
deleteButton.addActionListener(this);
searchButton.addActionListener(this);
timeButton.addActionListener(this);
fontButton.addActionListener(this);
boldButton.addActionListener(this);
italicButton.addActionListener(this);
fgcolorButton.addActionListener(this);
bgcolorButton.addActionListener(this);
helpButton.addActionListener(this);
// ------------------------设置按钮提示文字
newButton.setToolTipText("新建");
openButton.setToolTipText("打开");
saveButton.setToolTipText("保存");
saveAsButton.setToolTipText("另存为");
printButton.setToolTipText("打印");
undoButton.setToolTipText("撤消");
cutButton.setToolTipText("剪切");
copyButton.setToolTipText("复制");
pasteButton.setToolTipText("粘贴");
deleteButton.setToolTipText("删除所选");
searchButton.setToolTipText("查找与替换");
timeButton.setToolTipText("插入时间/日期");
// fontButton.setToolTipText("设置字体");
// boldButton.setToolTipText("粗体");
box_font.setToolTipText("设置字体");
box_size.setToolTipText("设置字号");
box_style.setToolTipText("设置字型");
italicButton.setToolTipText("斜体");
fgcolorButton.setToolTipText("设置字体颜色");
bgcolorButton.setToolTipText("设置背景颜色");
helpButton.setToolTipText("帮助");
// 设置撤消、重做、剪切、复制、粘贴、删除等工具栏按钮不可用时的图片(灰色)
undoButton.setDisabledIcon(new ImageIcon("Icons/undo1.gif"));
cutButton.setDisabledIcon(new ImageIcon("Icons/cut1.gif"));
copyButton.setDisabledIcon(new ImageIcon("Icons/copy1.gif"));
pasteButton.setDisabledIcon(new ImageIcon("Icons/paste1.gif"));
deleteButton.setDisabledIcon(new ImageIcon("Icons/delete1.gif"));
// ------------------------向工具栏添加按钮
toolBar.add(newButton);
toolBar.add(openButton);
toolBar.add(saveButton);
toolBar.add(saveAsButton);
toolBar.add(printButton);
toolBar.add(undoButton);
toolBar.add(cutButton);
toolBar.add(copyButton);
toolBar.add(pasteButton);
toolBar.add(deleteButton);
toolBar.add(searchButton);
toolBar.add(timeButton);
// toolBar.add(fontButton);
// toolBar.add(boldButton);
// toolBar.add(italicButton);
toolBar.add(fgcolorButton);
toolBar.add(bgcolorButton);
toolBar.add(helpButton);
toolBar.add(box_font);
toolBar.add(box_style);
toolBar.add(box_size); // --------------------------------------向容器添加工具栏
con.add(toolBar, BorderLayout.NORTH);
//*****************************悬浮菜单****************
final JPopupMenu popupMenu = new JPopupMenu();
popupMenu_Undo = new JMenuItem("撤消(U)", 'U');
popupMenu_Cut = new JMenuItem("剪切(T)", 'T');
popupMenu_Copy = new JMenuItem("复制(C)", 'C');
popupMenu_Paste = new JMenuItem("粘贴(P)", 'P');
popupMenu_Delete = new JMenuItem("删除(D)", 'D');
popupMenu_SelectAll = new JMenuItem("全选(A)", 'A'); popupMenu_Undo.setEnabled(false); // 撤消选项初始设为不可用
// ---------------向右键菜单添加菜单项和分隔符
popupMenu.add(popupMenu_Undo);
popupMenu.addSeparator();
popupMenu.add(popupMenu_Cut);
popupMenu.add(popupMenu_Copy);
popupMenu.add(popupMenu_Paste);
popupMenu.add(popupMenu_Delete);
popupMenu.addSeparator();
popupMenu.add(popupMenu_SelectAll);
// --------------------右键菜单注册事件
popupMenu_Undo.addActionListener(this);
popupMenu_Cut.addActionListener(this);
popupMenu_Copy.addActionListener(this);
popupMenu_Paste.addActionListener(this);
popupMenu_Delete.addActionListener(this);
popupMenu_SelectAll.addActionListener(this);
area.addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent e) {
checkForTriggerEvent(e);
} public void mouseReleased(MouseEvent e) {
checkForTriggerEvent(e); }
private void checkForTriggerEvent(MouseEvent e) {
if (e.isPopupTrigger())
popupMenu.show(e.getComponent(), e.getX(), e.getY());// 在组件调用者的坐标空间中的位置
// X、Y
// 显示弹出菜单。
else {
statusLabel3.setText("当前光标所在行数: " /*+ getlineNumber()*/);
}
//checkMenuItemEnabled(); // 设置剪切、复制、粘贴、删除等功能的可用性
area.requestFocus(); // 编辑区获取焦点
}
});
clipboard=this.getToolkit().getSystemClipboard();//获得系统剪切板
this.setBounds(250, 127, 650, 495);
this.setVisible(true);
this.validate();
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Clock clock = new Clock();
clock.start();
}
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==file_quit)
{
dispose();
}
if (e.getSource()==file_open || e.getSource() == openButton) {
{
JFileChooser chooser=new JFileChooser();
int state =chooser.showOpenDialog(null);
File file=chooser.getSelectedFile();
if(file!=null&&state==JFileChooser.APPROVE_OPTION)
try{FileInputStream in=new FileInputStream(file);
DataInputStream datain=new DataInputStream(in);
byte b[] =new byte[112];
int n=-1;
area.setText(null);
while((n=datain.read(b))!=-1)
{
String str=new String(b,0,n);
area.append(str);
}
this.setTitle(file.getName() + " - 记事本");
statusLabel1.setText(" 当前打开文件:" + file.getAbsoluteFile());
}
catch(IOException ee)
{}
}
}
if(e.getSource()==file_save||e.getSource()==saveButton)
{
JFileChooser fileChooser = new JFileChooser();
fileChooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
fileChooser.setApproveButtonText("确定");
fileChooser.setDialogTitle("保存");
int result = fileChooser.showSaveDialog(this);
if (result == JFileChooser.CANCEL_OPTION) {
statusLabel1.setText(" 您没有选择任何文件");
return;
}
File saveFileName = fileChooser.getSelectedFile();
if (saveFileName == null || saveFileName.getName().equals(""))
JOptionPane.showMessageDialog(this, "不合法的文件名", "不合法的文件名", JOptionPane.ERROR_MESSAGE);
else {
try{
FileWriter tofile=new FileWriter(saveFileName);
BufferedWriter out=new BufferedWriter(tofile);
out.write(area.getText(), 0, (area.getText().length()));
this.setTitle(saveFileName.getName() + " - 记事本");
// statusLabel1.setText(" 当前打开文件:" + saveFileName.getAbsoluteFile());
out.close();
tofile.close();
}
catch(IOException e2)
{}
}
}
if(e.getSource()==file_asave||e.getSource()==saveAsButton)
{
JFileChooser fileChooser = new JFileChooser();
fileChooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
fileChooser.setApproveButtonText("确定");
fileChooser.setDialogTitle("另存为");
int result = fileChooser.showSaveDialog(this);
if (result == JFileChooser.CANCEL_OPTION) {
statusLabel1.setText(" 您没有选择任何文件");
return;
}
File saveFileName = fileChooser.getSelectedFile();
if (saveFileName == null || saveFileName.getName().equals(""))
JOptionPane.showMessageDialog(this, "不合法的文件名", "不合法的文件名", JOptionPane.ERROR_MESSAGE);
else {
try{
FileWriter tofile=new FileWriter(saveFileName);
BufferedWriter out=new BufferedWriter(tofile);
out.write(area.getText(), 0, (area.getText().length()));
this.setTitle(saveFileName.getName() + " - 记事本");
// statusLabel1.setText(" 当前打开文件:" + saveFileName.getAbsoluteFile());
out.close();
tofile.close();
}
catch(IOException e2)
{}
}
}
if(e.getSource()==file_new||e.getSource()==newButton)
{ int n=0;
if(area.getText()!=null)
{
n=JOptionPane.showConfirmDialog(this, "文件没有保存，请先保存！","警告",JOptionPane.YES_NO_OPTION);
}
if(n==0)
{
JOptionPane.showMessageDialog(this, "请按保存按钮进行保存！");
}
if(n==1)
{
area.replaceRange("", 0, area.getText().length());
}
statusLabel1.setText(" 新建文件" );
}
if(e.getSource()==format_bcolor||e.getSource()==bgcolorButton)
{
Color newColor=JColorChooser.showDialog(this, "选择背景颜色", area.getBackground());
if(newColor!=null)
area.setBackground(newColor);
}
if(e.getSource()==format_fcolor||e.getSource()==fgcolorButton)
{
Color newColor=JColorChooser.showDialog(this, "选择字体颜色", area.getBackground());
if(newColor!=null)
area.setForeground(newColor);
}
if(e.getSource()==format_linewrap||e.getSource()==italicButton)
{ if(format_linewrap.getState())
area.setLineWrap(true);
else
area.setLineWrap(false);
}
if(e.getSource()==fontButton||e.getSource()==format_bold)
{
JOptionPane.showMessageDialog(this, "请根据工具栏设置字体","提示",JOptionPane.INFORMATION_MESSAGE);
}
if(e.getSource()==look_state)
{
if (look_state.getState())
statusBar.setVisible(true);
else
statusBar.setVisible(false);
}
if(e.getSource()==help_about)
{
JOptionPane.showMessageDialog(this,"本记事本为学习而用，请勿用作商业用途！/n李福春","关于",JOptionPane.WARNING_MESSAGE);
}
if(e.getSource()==help_help||e.getSource()==helpButton)
{
JOptionPane.showMessageDialog(this,"相关的菜单设置了快捷键，工具栏设有提示，不足之处，请指正！","帮助",JOptionPane.WARNING_MESSAGE);
}
if(e.getSource()==edit_date||e.getSource()==timeButton)
{
area.requestFocus();
SimpleDateFormat currentDateTime = new SimpleDateFormat("yyyy-MM-dd HH:mm ");
area.insert(currentDateTime.format(new Date()),area.getCaretPosition());
}
if(e.getSource()==edit_selectall||e.getSource()==popupMenu_SelectAll)
{
area.selectAll();
}
if(e.getSource()==file_print||e.getSource()==printButton)
{
PrintJob p=this.getToolkit().getPrintJob(this,"打印", null);
Graphics g=p.getGraphics();
// if(area.getText()!=null)
// {
area.printAll(g);
g.dispose();
p.end();
// }
// else
// {
// JOptionPane.showConfirmDialog(this, "文本中没有内容，请输入内容进行打印","警告",JOptionPane.YES_NO_OPTION);
// }
}
if(e.getSource()==popupMenu_Cut||e.getSource()==cutButton||e.getSource()==edit_cut)
{
String temp=area.getSelectedText();
StringSelection text=new StringSelection(temp);
clipboard.setContents(text, null);
int start=area.getSelectionStart();
int end=area.getSelectionEnd();
area.replaceRange("", start, end);
}
if(e.getSource()==popupMenu_Copy||e.getSource()==edit_copy||e.getSource()==copyButton)
{
String temp=area.getSelectedText();
StringSelection text=new StringSelection(temp);
// Clipboard clipboard=this.getToolkit().getSystemClipboard();
clipboard.setContents(text, null);
// int start=area.getSelectionStart();
// int end=area.getSelectionEnd();
// area.replaceRange("", start, end);
}
if(e.getSource()==popupMenu_Paste||e.getSource()==edit_paste||e.getSource()==pasteButton)
{
Transferable contents=clipboard.getContents(this);
DataFlavor flavor=DataFlavor.stringFlavor;
if(contents.isDataFlavorSupported(flavor))
{
try{
String str=(String)contents.getTransferData(flavor);
area.append(str);
}
catch(Exception ee)
{}
}
}
if(e.getSource()==popupMenu_Delete||e.getSource()==deleteButton||e.getSource()==edit_del)
{
int start=area.getSelectionStart();
int end=area.getSelectionEnd();
area.replaceRange("", start, end);
}
}
}
class Clock extends Thread { // 模拟时钟
public void run() {
while (true) {
GregorianCalendar time = new GregorianCalendar();
int hour = time.get(Calendar.HOUR_OF_DAY);
int min = time.get(Calendar.MINUTE);
int second = time.get(Calendar.SECOND);
statusLabel2.setText(" 当前时间：" + hour + ":" + min + ":" + second);
try {
Thread.sleep(950);
} catch (InterruptedException exception) {
} }
}
}
public void itemStateChanged(ItemEvent e)
{
if(e.getSource()==box_font)
{
name=(String)box_font.getSelectedItem();
f=new Font(name,style,size);
area.setFont(f);
}
if(e.getSource()==box_size)
{
int r=box_size.getSelectedIndex();
size=2*r;
f=new Font(name,style,size);
area.setFont(f);
}
if(e.getSource()==box_style)
{
if((String) box_style.getSelectedItem()=="加粗")
style=Font.BOLD;
if((String) box_style.getSelectedItem()=="斜体")
style=Font.ITALIC;
if((String) box_style.getSelectedItem()=="常规")
style=Font.PLAIN;
if((String) box_style.getSelectedItem()=="粗斜体")
style=Font.BOLD+Font.ITALIC;
f=new Font(name,style,size);
area.setFont(f); }
}
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
new TextbookTest("记事本");
}
} 0
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自己做的java 记事本（查找，替换部分功能缺失） 多多交流
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