基于Java的模拟写字板的设计与实现

package work; import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.io.*; import javax.swing.event.*; import java.util.*; import java.awt.datatransfer.*; class text implements Serializable{ String keyword;//密码 String textmain;//文本部分 } public class SlNotepad extends JFrame implements ActionListener,ListSelectionListener{ MenuBar menusBar;//菜单栏 MenuItem open,keep,save,newfile,exit_out,about,text_font,colorchoose,backchoose,timeadd,keyopen,keysave,zcancel,copy,paste,cut,delete,selectall,search,autoline; Menu file,edit,format,help;//菜单种类 MenuShortcut opencut,dsavecut,savecut,newworkcut,quitcut,aboutcut,fontchoosecut,colorchoosecut,backchoosecut,timeaddcut,keyopencut,keysavecut,zcancelcut,copycut,pastecut,cutcut,deletecut,selectallcut,searchcut,autolinecut; Toolkit tool=this.getToolkit(); Clipboard clip;//剪贴版 Image image=tool.getImage("data/icon.jpg");//框架图标 JTextArea textarea;//文本区域 JDialog dialog,fontdialog,keydialog,searchdialog;//问是否 JList fontlist;//字体单 Choice fontpara;//字体粗斜 JTextField fontsizetext;//字体大小输入 JTextField searchtext;//搜索文字 JTextField changetext;//替换文字 TextField keyentertext;//密码输入 JScrollPane listscroll,textscroll; JPanel fontbuttonpanel,fontmainpanel,fontsizepanel,searchpanel,searchbuttonpanel,searchtextpanel,changepanel,changetextpanel,changebuttonpanel; GraphicsEnvironment ge=GraphicsEnvironment.getLocalGraphicsEnvironment(); String fontname[]=ge.getAvailableFontFamilyNames();//字体库 boolean havesave=true;//是否已存 boolean enterquit=false;//用来判定对话框之前是否按退出 JButton yes,no,cancel,ok,can,keyok,searchok,searchcancel,changeok,changeall;//对话框按钮 JLabel tip,fonttype,fontsize,searchtip,changetip;//提示 FileDialog filedialog;//输入输出对话框 text text;//存储对象 String opensource="";//用来判断是否已保存 String texttype="宋体";//字体 String direct="";//保存路径 String canceltext="";//用来撤销 int size=18;//字体大小 int para=0;//字体粗斜 Font font=new Font(texttype,Font.PLAIN,size); Color fontcolor=Color.black;//字体颜色 Color backcolor=Color.white;//背景颜色 Date nowtime;//现在时间 char savemode1='s'; char savemode2='t';//加密保存方式 public SlNotepad(String title){ this.setIconImage(image);//图标 setTitle(title);//标题 this.setResizable(true);//大小可调 this.setBackground(Color.cyan); this.setBounds(new Rectangle(150,100,800,550));//窗口大小 this.addWindowListener(new WindowAdapter(){ public void windowClosing(WindowEvent e){ System.out.println("程序关闭"); System.exit(0); } public void windowOpened(WindowEvent e){ System.out.println("程序打开"); } });//程序关闭监听 clip=getToolkit().getSystemClipboard();//获得剪贴版 this.initcopy();//初始化为空 textarea=new JTextArea(); textarea.setLineWrap(false); textarea.setFont(font); textarea.setForeground(Color.black); textarea.setBackground(Color.white); textscroll=new JScrollPane(textarea); this.add(textscroll); //文本域 //------------------------------------------------ searchdialog=new JDialog(this,"搜索/替換",false); searchdialog.setResizable(false); searchdialog.setLayout(new BorderLayout()); searchdialog.setSize(250,230); searchok=new JButton("查找下一个"); searchcancel=new JButton("取消搜索"); searchtext=new JTextField("",10); searchtip=new JLabel("搜索关键字："); searchpanel=new JPanel(); searchpanel.setBorder(BorderFactory.createTitledBorder("搜索"));//加边框 searchpanel.setLayout(new BoxLayout(searchpanel, BoxLayout.Y_AXIS));//上下的 searchbuttonpanel=new JPanel(); searchbuttonpanel.setLayout(new FlowLayout()); searchtextpanel=new JPanel(); searchtextpanel.setLayout(new FlowLayout()); searchtextpanel.add(searchtip); searchtextpanel.add(searchtext); searchbuttonpanel.add(searchok); searchbuttonpanel.add(searchcancel); searchpanel.add(searchtextpanel); searchpanel.add(searchbuttonpanel); searchdialog.add(searchpanel,BorderLayout.NORTH); searchok.addActionListener(this); searchcancel.addActionListener(this); //搜索对话框(搜索) changetext=new JTextField("",10); changetip=new JLabel("替换为： "); changeok=new JButton("替换"); changeall=new JButton("全部替换"); changepanel=new JPanel(); changepanel.setBorder(BorderFactory.createTitledBorder("替换"));//加边框 changepanel.setLayout(new BoxLayout(changepanel, BoxLayout.Y_AXIS));//上下的 changebuttonpanel=new JPanel(); changebuttonpanel.setLayout(new FlowLayout()); changetextpanel=new JPanel(); changetextpanel.setLayout(new FlowLayout()); changetextpanel.add(changetip); changetextpanel.add(changetext); changebuttonpanel.add(changeok); changebuttonpanel.add(changeall); changepanel.add(changetextpanel); changepanel.add(changebuttonpanel); searchdialog.add(changepanel,BorderLayout.CENTER); changeok.addActionListener(this); changeall.addActionListener(this); //搜索对话框(替换) keyentertext=new TextField("",8); keyentertext.setEchoChar('*'); keyok=new JButton("输入完成"); keydialog=new JDialog(this,"密码设置",true); keydialog.setResizable(false); keydialog.setLayout(new FlowLayout()); keydialog.setSize(250,80); keydialog.add(keyentertext); keydialog.add(keyok); keyok.addActionListener(this); //密码对话框 yes=new JButton("是"); no=new JButton("否"); cancel=new JButton("取消"); tip=new JLabel("文件的文字已经改动，要保存文件吗？"); dialog=new JDialog(this,"写字板",true); dialog.setResizable(false); dialog.setLayout(new FlowLayout()); dialog.setSize(250,100); dialog.add(tip); dialog.add(yes); dialog.add(no); dialog.add(cancel); yes.addActionListener(this); no.addActionListener(this); cancel.addActionListener(this); //保存提示对话框 ok=new JButton("确定"); can=new JButton("取消"); fontpara=new Choice(); fontpara.add("一般"); fontpara.add("粗体"); fontpara.add("斜体"); fontpara.add("粗斜体"); fonttype=new JLabel("字体选择："); fontsize=new JLabel("字体大小选择："); fontsizetext=new JTextField("18",2); fontlist=new JList(fontname); listscroll=new JScrollPane(fontlist); fontbuttonpanel=new JPanel(); fontbuttonpanel.setLayout(new FlowLayout(FlowLayout.RIGHT,10,10)); fontbuttonpanel.add(ok); fontbuttonpanel.add(can); fontmainpanel=new JPanel(); fontmainpanel.setLayout(new BorderLayout()); fontmainpanel.add(fonttype,BorderLayout.NORTH); fontmainpanel.add(listscroll,BorderLayout.CENTER); fontsizepanel=new JPanel(); fontsizepanel.setLayout(new FlowLayout(FlowLayout.RIGHT,10,10)); fontsizepanel.add(fontsize); fontsizepanel.add(fontsizetext); fontsizepanel.add(fontpara); fontdialog=new JDialog(