java-編寫簡單的編輯器(一)
本文編寫的編輯器模仿的是windows底下的記事本功能,並增加了高亮和自動保存的功能.
該編輯器功能如下:
- 複製粘貼
- 查找替換
- 自動保存
- 代碼高亮
這次只搭建簡單的框架,搭建出基本樣子
2016/03/12 更新
基本實現windows記事本功能，查找有錯。
（參考別人代碼，所以隨意轉載）
import java.awt.*;
import java.awt.event.*;
import java.awt.AWTEvent;
import java.awt.Font;
import java.text.*;
import java.util.*;
import java.io.*;
import java.io.IOException;
import java.io.File;
import javax.swing.undo.*;
import javax.swing.*;
import javax.swing.event.*;
import java.awt.datatransfer.*;
import javax.swing.filechooser.FileNameExtensionFilter;
import java.lang.reflect.Method;
import javax.swing.text.BadLocationException;
public class Editor extends JFrame{
Container container = getContentPane();
public ImageIcon icon = new ImageIcon("./lovexw.jpg");
public Image image = icon.getImage();
public JMenuBar menubar = new JMenuBar();
public JMenu fileMenu,editMenu,formatMenu,viewMenu,helpMenu;
public JMenuItem fileMenu_New,fileMenu_Open,fileMenu_Save,fileMenu_SaveAs,fileMenu_PageSetup,fileMenu_Print,fileMenu_Exit;
public JMenuItem editMenu_Undo,editMenu_Redo,editMenu_Cut,editMenu_Copy,editMenu_Paste,editMenu_Delete,editMenu_Find,
editMenu_GoTo,editMenu_SelectAll,editMenu_TimeDate;
public JCheckBoxMenuItem formatMenu_LineWrap;
public JMenuItem formatMenu_Font;
public JCheckBoxMenuItem viewMenu_Status;
public JMenuItem helpMenu_Help,helpMenu_About;
public JTextArea editArea;
public JLabel statusLabel = new JLabel("Current Location is 1 row, 1 line",JLabel.RIGHT);
public JPopupMenu popupMenu;
public JMenuItem popupMenu_Undo,popupMenu_Redo,popupMenu_Cut,popupMenu_Copy,popupMenu_Paste,popupMenu_Delete,popupMenu_SelectAll;
public JList list;
public String currentValue,oldValue;
public String oldpath = null;
public boolean isNewFile = true;
public Toolkit toolKit=Toolkit.getDefaultToolkit();
protected UndoManager undo = new UndoManager();
public Font newfont;
//protected UndoableEditListener undoHandler = new UndoHandler();
public Editor(){
super("windows notepad");
JMenu fileMenu = new JMenu("File(F)",true);
fileMenu.setMnemonic('F');
fileMenu_New = new JMenuItem("New(N)", 'N');
fileMenu_New.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_N, InputEvent.CTRL_MASK));
fileMenu_New.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
currentValue = editArea.getText();
if(currentValue.equals(oldValue)){
editArea.setText("");
}
else{
int result = JOptionPane.showConfirmDialog(null,"No Saved,Sure to create a new File?","Warning",JOptionPane.YES_NO_OPTION);
if(result == JOptionPane.YES_OPTION){
editArea.setText("");
}
}
}
});
fileMenu_Open = new JMenuItem("Open(O)", 'O');
fileMenu_Open.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_O, InputEvent.CTRL_MASK));
fileMenu_Open.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
JFileChooser fileChooser = new JFileChooser(oldpath);
//java file only
FileNameExtensionFilter filter = new FileNameExtensionFilter("JAVA File","java");
fileChooser.setFileFilter(filter);
//fileChooser's title
fileChooser.setDialogTitle("Open File");
int result = fileChooser.showOpenDialog(getParent()); //showOpenDialog(this) isn't right
if(result == JFileChooser.APPROVE_OPTION){
String name = fileChooser.getSelectedFile().getName();
String path = fileChooser.getSelectedFile().getPath();
oldpath = path;
int line = 1;
File file = new File(path);
BufferedReader reader = null;
try{
reader = new BufferedReader(new FileReader(file));
String temstring = null;
while((temstring = reader.readLine())!=null){
editArea.append(line + " " + temstring);
editArea.append("\n");
line ++;
}
reader.close();
}catch(IOException c){
c.printStackTrace();
}finally{
if(reader != null){
try{
reader.close();
}catch(IOException d){
}
}
}
statusLabel.setText("Current Location is " + line + " row, 1 line");
oldValue = editArea.getText();
resetTitle(name);
}
}
});
fileMenu_Save = new JMenuItem("Save(S)", 'S');
fileMenu_Save.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S, InputEvent.CTRL_MASK));
fileMenu_Save.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
if(isNewFile){
String str = null;
JFileChooser fileChooser = new JFileChooser();
fileChooser.setDialogTitle("Save File");
int result = fileChooser.showSaveDialog(getParent());
File saveFileName = fileChooser.getSelectedFile();
if(result == JFileChooser.APPROVE_OPTION){
try{
FileWriter fw = new FileWriter(saveFileName + ".java");
oldpath = saveFileName.getPath();
BufferedWriter bfw = new BufferedWriter(fw);
bfw.write(editArea.getText(),0,editArea.getText().length());
bfw.flush();
isNewFile = false;
fw.close();
oldValue = editArea.getText();
}catch(IOException c){
}
}
}
if(!oldValue.equals(editArea.getText())){
try{
FileWriter fw = new FileWriter(oldpath + ".java");
BufferedWriter bfw = new BufferedWriter(fw);
bfw.write(editArea.getText(),0,editArea.getText().length());
bfw.flush();
fw.close();
oldValue = editArea.getText();
}catch(IOException c){
}
}
}
});
fileMenu_SaveAs = new JMenuItem("Save As(A)...", 'A');
fileMenu_SaveAs.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
JFileChooser fileChooser = new JFileChooser("Save As");
FileNameExtensionFilter filter = new FileNameExtensionFilter("JAVA File","java");
fileChooser.setFileFilter(filter);
int result = fileChooser.showSaveDialog(getParent());
if(result == JFileChooser.APPROVE_OPTION){
File saveasfile = fileChooser.getSelectedFile();
try{
FileWriter fw = new FileWriter(saveasfile+".java");
BufferedWriter bfw = new BufferedWriter(fw);
bfw.write(editArea.getText(),0,editArea.getText().length());
bfw.flush();
isNewFile = false;
fw.close();
oldValue = editArea.getText();
}catch(IOException c){
}
}
}
});
fileMenu_PageSetup = new JMenuItem("Page Setup(U)...",'U');
fileMenu_PageSetup.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
dialogShow();
}
});
fileMenu_Exit = new JMenuItem("Exit(X)",'X');
fileMenu_Exit.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
if((isNewFile)||(!oldValue.equals(editArea.getText()))){
int result = JOptionPane.showConfirmDialog(null,"No Saved,Sure to Exit?","Warning",JOptionPane.YES_NO_OPTION);
if(result == JOptionPane.YES_OPTION){
System.exit(0);
}
}
}
});
JMenu editMenu = new JMenu("Edit(E)",true);
editMenu.setMnemonic('E');
editMenu_Undo = new JMenuItem("Undo(U)",'U');
editMenu_Undo.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_Z, InputEvent.CTRL_MASK));
editMenu_Undo.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
if(undo.canUndo()){
try{
undo.undo();
}catch(CannotUndoException ex){
ex.printStackTrace();
}
}
}
});
editMenu_Redo = new JMenuItem("Redo(R)",'R');
editMenu_Redo.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_Y,InputEvent.CTRL_MASK));
editMenu_Redo.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
if(undo.canRedo()){
try{
undo.redo();
}catch(CannotRedoException ex){
ex.printStackTrace();
}
}
}
});
editMenu_Cut = new JMenuItem("Cut(T)",'T');
editMenu_Cut.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_X, InputEvent.CTRL_MASK));
editMenu_Cut.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
editArea.cut();
}
});
editMenu_Copy = new JMenuItem("Copy(C)",'C');
editMenu_Copy.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_C, InputEvent.CTRL_MASK));
editMenu_Copy.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
editArea.copy();
}
});
editMenu_Paste = new JMenuItem("Paste(P)",'P');
editMenu_Paste.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_V, InputEvent.CTRL_MASK));
editMenu_Paste.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
editArea.paste();
}
});
editMenu_Delete = new JMenuItem("Delete(L)",'L');
editMenu_Delete.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_DELETE, 0));
editMenu_Delete.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
editArea.replaceSelection(null);
}
});
editMenu_Find = new JMenuItem("Find(F)...",'F');
editMenu_Find.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F, InputEvent.CTRL_MASK));
editMenu_Find.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
search();
}
});
editMenu_GoTo = new JMenuItem("Go(G)...",'G');
editMenu_GoTo.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_G, InputEvent.CTRL_MASK));
editMenu_GoTo.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
JOptionPane pane = new JOptionPane();
String s = pane.showInputDialog(null,"Go to","Please input the line number",JOptionPane.YES_OPTION);
if(s!=null){
int result = Integer.valueOf(s).intValue();
try{
int position = editArea.getLineStartOffset(result) - 1;
editArea.setCaretPosition(position);
}catch(Exception ex){
ex.printStackTrace();
}
}
}
});
editMenu_SelectAll = new JMenuItem("Select All",'A');
editMenu_SelectAll.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_A, InputEvent.CTRL_MASK));
editMenu_SelectAll.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
editArea.selectAll();
}
});
editMenu_TimeDate = new JMenuItem("Time/Date(D)",'D');
editMenu_TimeDate.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F5,0));
editMenu_TimeDate.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
int y,m,d,h,mi,s;
Calendar cal=Calendar.getInstance();
y=cal.get(Calendar.YEAR);
m=cal.get(Calendar.MONTH);
d=cal.get(Calendar.DATE);
h=cal.get(Calendar.HOUR_OF_DAY);
mi=cal.get(Calendar.MINUTE);
s=cal.get(Calendar.SECOND);
//Date date=new Date();
//DateFormat format=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
//String time=format.format(date);
editArea.insert(y+" year "+m+" mouth "+d+" day "+h+":"+mi+":"+s,editArea.getCaretPosition());
}
});
JMenu formatMenu = new JMenu("Format(O)", true);
formatMenu.setMnemonic('O');
formatMenu_LineWrap = new JCheckBoxMenuItem("Line Wrap(W)");
formatMenu_LineWrap.setMnemonic('W');
formatMenu_LineWrap.setState(true);
formatMenu_LineWrap.addItemListener(new ItemListener(){
public void itemStateChanged(ItemEvent e){
if(formatMenu_LineWrap.getState()){
editArea.setLineWrap(true);
}
else{
editArea.setLineWrap(false);
}
}
});
formatMenu_Font = new JMenuItem("Font(F)...",'F');
formatMenu_Font.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
dialogforfont();
}
});
JMenu viewMenu = new JMenu("View(V)", true);
viewMenu.setMnemonic('V');
viewMenu_Status = new JCheckBoxMenuItem("Status Bar(S)");
viewMenu_Status.setMnemonic('S');
viewMenu_Status.setState(false);
viewMenu_Status.addItemListener(new ItemListener(){
public void itemStateChanged(ItemEvent e){
if(viewMenu_Status.getState()){
status();
fresh();
statusLabel.setVisible(true);
}
else{
statusLabel.setVisible(false);
}
}
});
JMenu helpMenu = new JMenu("Help(H)", true);
helpMenu.setMnemonic('H');
helpMenu_Help = new JMenuItem("Help(H)",'H');
helpMenu_Help.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F1,0));
helpMenu_Help.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
String helpTopicsStr=new String("<center><br>lalalal<br><a href=http:// target=_blank>"+"http://</a><br><br><br>"+"demo</center>");
JEditorPane editPane=new JEditorPane("text/html",helpTopicsStr);
editPane.setEditable(false);
try{
java.net.URI uri = java.net.URI.create("http://www.baidu.com/");
java.awt.Desktop dp = java.awt.Desktop.getDesktop() ;
if (dp.isSupported(java.awt.Desktop.Action.BROWSE))
dp.browse(uri);
}catch(Exception c){
c.printStackTrace();
}
}
});
helpMenu_About = new JMenuItem("About(A)",'A');
helpMenu_About.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
JOptionPane.showMessageDialog(null,
" demo \n" +
" fo \n" +
" java \n",
"About",JOptionPane.INFORMATION_MESSAGE);
}
});
menubar.add(fileMenu);
fileMenu.add(fileMenu_New);
fileMenu.add(fileMenu_Open);
fileMenu.add(fileMenu_Save);
fileMenu.add(fileMenu_SaveAs);
fileMenu.addSeparator();
fileMenu.add(fileMenu_PageSetup);
fileMenu.addSeparator();
fileMenu.add(fileMenu_Exit);
menubar.add(editMenu);
editMenu.add(editMenu_Undo);
editMenu.add(editMenu_Redo);
editMenu.addSeparator();
editMenu.add(editMenu_Cut);
editMenu.add(editMenu_Copy);
editMenu.add(editMenu_Paste);
editMenu.add(editMenu_Delete);
editMenu.addSeparator();
editMenu.add(editMenu_Find);
editMenu.add(editMenu_GoTo);
editMenu.addSeparator();
editMenu.add(editMenu_SelectAll);
editMenu.add(editMenu_TimeDate);
menubar.add(formatMenu);
formatMenu.add(formatMenu_LineWrap);
formatMenu.addSeparator();
formatMenu.add(formatMenu_Font);
menubar.add(viewMenu);
viewMenu.add(viewMenu_Status);
menubar.add(helpMenu);
helpMenu.add(helpMenu_Help);
helpMenu.addSeparator();
helpMenu.add(helpMenu_About);
editArea = new JTextArea();
JScrollPane scroller = new JScrollPane(editArea);
scroller.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
container.add(scroller,BorderLayout.CENTER);
editArea.setWrapStyleWord(true);
editArea.setLineWrap(true);
Font font = new Font("TimesRoman",Font.PLAIN,17);
editArea.setFont(font);
editArea.setBackground(Color.white);
editArea.setForeground(Color.black);
editArea.getDocument().addUndoableEditListener(new UndoableEditListener(){
public void undoableEditHappened(UndoableEditEvent e) {
undo.addEdit(e.getEdit());
}
});
popupMenu=new JPopupMenu();
popupMenu_Undo=new JMenuItem("Undo(U)",'U');
popupMenu_Redo=new JMenuItem("Redo(R)",'R');
popupMenu_Cut =new JMenuItem("Cut(T)",'T');
popupMenu_Copy=new JMenuItem("Copy(C)",'C');
popupMenu_Paste=new JMenuItem("Paset(P)",'P');
popupMenu_Delete=new JMenuItem("Delete(D)",'D');
popupMenu_SelectAll=new JMenuItem("Select all(A)",'A');
popupMenu.add(popupMenu_Undo);
popupMenu.add(popupMenu_Redo);
popupMenu.addSeparator();
popupMenu.add(popupMenu_Cut);
popupMenu.add(popupMenu_Copy);
popupMenu.add(popupMenu_Paste);
popupMenu.add(popupMenu_Delete);
popupMenu.addSeparator();
editArea.addMouseListener(new MouseAdapter(){
public void mousePressed(MouseEvent e){
int mods = e.getModifiers();
if(mods == InputEvent.BUTTON3_MASK)
popupMenu.show(e.getComponent(),e.getX(),e.getY());
}
//兩個方法都可以的
/*public void mousePressed(MouseEvent e){
triggerEvent(e);
}
public void triggerEvent(MouseEvent e){
if(e.isPopupTrigger())
popupMenu.show(e.getComponent(),e.getX(),e.getY());
}*/
});
try{
String lookAndFeel = UIManager.getSystemLookAndFeelClassName();
UIManager.setLookAndFeel(lookAndFeel);
SwingUtilities.updateComponentTreeUI(this);
}catch(Exception e){
e.printStackTrace();
}
this.setJMenuBar(menubar);
this.setSize(1050,650);
this.setLocation(100,50);
this.setTitle("XW");
this.setDefaultCloseOperation(EXIT_ON_CLOSE);
this.setIconImage(image);
this.setVisible(true);
}
public void search(){
final JDialog searchDialog = new JDialog();
Container con = searchDialog.getContentPane();
con.setLayout(new FlowLayout(FlowLayout.LEFT));
JLabel searchlabel = new JLabel("Search:");
JLabel replacelabel = new JLabel("Replace by");
final JTextField searchtext = new JTextField(15);
final JTextField replacetext = new JTextField(15);
final JCheckBox matchcase = new JCheckBox("Seperated by big characters");
ButtonGroup bgroup = new ButtonGroup();
final JRadioButton up = new JRadioButton("Up");
final JRadioButton down = new JRadioButton("Down");
down.setSelected(true);
bgroup.add(up);
bgroup.add(down);
JButton next = new JButton("Find Next");
JButton replace = new JButton("Replace");
final JButton replaceall = new JButton("Replace All");
next.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
if(searchtext.getText().equals("")){
JOptionPane.showMessageDialog(searchDialog,"Search Field can't be empty'!","Warning",JOptionPane.WARNING_MESSAGE);
}
else{
String a;
String b;
if(matchcase.isSelected()){
a = editArea.getText();
b = searchtext.getText();
}
else{
a = editArea.getText().toLowerCase();
b = searchtext.getText().toLowerCase();
}
if(down.isSelected()){
int l = a.indexOf(b,l0);
if(l > 0){
l0 = l + 1;
editArea.select(l,l + searchtext.getText().length());
}
else{
JOptionPane.showMessageDialog(searchDialog,"No next","Warning",JOptionPane.WARNING_MESSAGE);
}
}
if(up.isSelected()){
}
}
}
});
replace.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
if(replacetext.getText()== null && editArea.getSelectedText()!= null){
System.out.println("kong succeed!");
editArea.replaceSelection("");
}
else if(replacetext.getText()!= null && editArea.getSelectedText()!= null){
System.out.println("fei kong succeed!");
editArea.replaceSelection(replacetext.getText());
}
}
});
replaceall.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
editArea.setCaretPosition(0);
int a = 0;
int b = 0;
int replaceCount = 0;
if(searchtext.getText()==null){
JOptionPane.showMessageDialog(searchDialog,"Please Input the Search String!","Warning",JOptionPane.WARNING_MESSAGE);
searchtext.requestFocus(true);
return ;
}
while(a > -1){
int startpos = editArea.getCaretPosition();
String sa,sb;
String s1 = editArea.getText();
String s2 = s1.toLowerCase();
String s3 = searchtext.getText();
String s4 = s3.toLowerCase();
if(matchcase.isSelected()) {
sa = s1;
sb = s3;
}
else{
sa = s2;
sb = s4;
}
if(up.isSelected()){
if(editArea.getSelectedText() == null){
a = sa.lastIndexOf(sb,startpos - 1);
}
else{
a = sa.lastIndexOf(sb,startpos - searchtext.getText().length() - 1);
}
}
else if(down.isSelected()){
if(editArea.getSelectedText() == null){
a = sa.indexOf(sb,startpos);
}
else{
a = sa.indexOf(sb,startpos - searchtext.getText().length() + 1);
}
}
}
}
});
JPanel bottomPanel=new JPanel();
JPanel centerPanel=new JPanel();
JPanel topPanel=new JPanel();
JPanel direction=new JPanel();
direction.setBorder(BorderFactory.createTitledBorder("direction:"));
direction.add(up);
direction.add(down);
JPanel replacePanel=new JPanel();
replacePanel.setLayout(new GridLayout(2,1));
replacePanel.add(replace);
replacePanel.add(replaceall);
topPanel.add(searchlabel);
topPanel.add(searchtext);
topPanel.add(next);
centerPanel.add(replacelabel);
centerPanel.add(replacetext);
centerPanel.add(replacePanel);
bottomPanel.add(matchcase);
bottomPanel.add(direction);
//bottomPanel.add(cancelbutton);
con.add(topPanel);
con.add(centerPanel);
con.add(bottomPanel);
searchDialog.setTitle("Search");
searchDialog.setSize(400,350);
searchDialog.setLocation(450,200);
searchDialog.setResizable(false);
searchDialog.setVisible(true);
}
public void dialogforfont(){
final JDialog fontDialog = new JDialog();
final JLabel example = new JLabel("demo for font");
example.setHorizontalAlignment(SwingConstants.CENTER);
example.setPreferredSize(new Dimension(200,30));
fontDialog.setTitle("Font Setup");
Container con=fontDialog.getContentPane();
con.setLayout(new FlowLayout(FlowLayout.LEFT));
final Font currentFont=editArea.getFont();
newfont = currentFont;
JLabel font = new JLabel("Font:");
font.setPreferredSize(new Dimension(100,20));
JLabel style = new JLabel("style");
style.setPreferredSize(new Dimension(100,20));
JLabel size = new JLabel("size");
size.setPreferredSize(new Dimension(100,20));
final JTextField nfont = new JTextField(10);
nfont.setPreferredSize(new Dimension(30,30));
final JTextField nstyle = new JTextField(8);
nstyle.setPreferredSize(new Dimension(30,30));
final JTextField nsize = new JTextField(3);
nsize.setPreferredSize(new Dimension(30,30));
nfont.setText(currentFont.getFontName());
nfont.selectAll();
if(currentFont.getStyle()==Font.PLAIN)
nstyle.setText("chang gui");
else if(currentFont.getStyle()==Font.BOLD)
nstyle.setText("cu ti");
else if(currentFont.getStyle()==Font.ITALIC)
nstyle.setText("xie ti");
else if(currentFont.getStyle()==(Font.BOLD+Font.ITALIC))
nstyle.setText("cu xie ti");
nstyle.requestFocus();
nstyle.selectAll();
nsize.setText(currentFont.getSize()+"");
nsize.requestFocus();
nsize.selectAll();
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
final String fontname[] = ge.getAvailableFontFamilyNames();
int defaultFontIndex = 0;
for(int i = 0;i < fontname.length;i ++){
if(fontname[i].equals(currentFont.getFontName())){
defaultFontIndex = i;
break;
}
}
final JList listfont = new JList(fontname);
listfont.setSelectedIndex(defaultFontIndex);
listfont.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
listfont.setVisibleRowCount(7);
listfont.setFixedCellWidth(82);
listfont.setFixedCellHeight(20);
listfont.addListSelectionListener(new ListSelectionListener(){
public void valueChanged(ListSelectionEvent event){
nfont.setText(fontname[listfont.getSelectedIndex()]);
nfont.requestFocus();
nfont.selectAll();
Font newFont = new Font(nfont.getText(),newfont.getStyle(),newfont.getSize());
example.setFont(newFont);
newfont = newFont;
}
});
final String fontstyle[] = {"chang gui","cu ti","xie ti","cu xie ti"};
final JList liststyle = new JList(fontstyle);
liststyle.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
if(currentFont.getStyle()==Font.PLAIN)
liststyle.setSelectedIndex(0);
else if(currentFont.getStyle()==Font.BOLD)
liststyle.setSelectedIndex(1);
else if(currentFont.getStyle()==Font.ITALIC)
liststyle.setSelectedIndex(2);
else if(currentFont.getStyle()==(Font.BOLD+Font.ITALIC))
liststyle.setSelectedIndex(3);
liststyle.setVisibleRowCount(7);
liststyle.setVisibleRowCount(7);
liststyle.setFixedCellWidth(99);
liststyle.setFixedCellHeight(20);
liststyle.addListSelectionListener(new ListSelectionListener(){
public void valueChanged(ListSelectionEvent e){
nstyle.setText(fontstyle[liststyle.getSelectedIndex()]);
nstyle.requestFocus();
nstyle.selectAll();
int newstyle = 0;
if(nstyle.getText().equals("chang gui")){
newstyle = Font.PLAIN;
}
else if(nstyle.getText().equals("cu ti")){
newstyle = Font.BOLD;
}
else if(nstyle.getText().equals("xie ti")){
newstyle = Font.ITALIC;
}
else{
newstyle = Font.BOLD + Font.ITALIC;
}
Font newFont = new Font(nfont.getText(),newstyle,newfont.getSize());
example.setFont(newFont);
newfont = newFont;
}
});
final String fontsize[] = {"11","12","13","14","15","16","17","18","19","20","21","22","23","24","25","26","27","28","29","30"};
final JList listsize = new JList(fontsize);
int defaultFontSizeIndex = 0;
for(int i = 0;i < fontsize.length;i ++){
if(fontsize[i].equals(currentFont.getSize() + "")){
defaultFontSizeIndex = i;
break;
}
}
listsize.setSelectedIndex(defaultFontSizeIndex);
listsize.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
listsize.setVisibleRowCount(7);
listsize.setFixedCellWidth(39);
listsize.setFixedCellHeight(20);
listsize.addListSelectionListener(new ListSelectionListener(){
public void valueChanged(ListSelectionEvent e){
nsize.setText(fontsize[listsize.getSelectedIndex()]);
nsize.requestFocus();
nsize.selectAll();
Font newFont = new Font(nfont.getText(),newfont.getStyle(),Integer.valueOf(nsize.getText()));
example.setFont(newFont);
newfont = newFont;
}
});
JButton fontokbutton = new JButton("OK");
fontokbutton.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
editArea.setFont(newfont);
fontDialog.dispose();
}
});
JButton fontcancelbutton = new JButton("Cancel");
fontcancelbutton.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
fontDialog.dispose();
}
});
JPanel samplePanel=new JPanel();
samplePanel.setBorder(BorderFactory.createTitledBorder("示例"));
samplePanel.add(example);
con.add(font);
con.add(style);
con.add(size);
con.add(nfont);
con.add(nstyle);
con.add(nsize);
con.add(new JScrollPane(listfont));
con.add(new JScrollPane(liststyle));
con.add(new JScrollPane(listsize));
con.add(samplePanel);
con.add(fontokbutton);
con.add(fontcancelbutton);
fontDialog.setSize(350,340);
fontDialog.setLocation(200,200);
fontDialog.setResizable(false);
fontDialog.setVisible(true);
}
public void fresh(){
this.validate();
}
public void status(){
editArea.addCaretListener(new CaretListener(){
public void caretUpdate(CaretEvent e){
try{
int pos = editArea.getCaretPosition();
int lineOfC = editArea.getLineOfOffset(pos) + 1;
int col = pos - editArea.getLineStartOffset(lineOfC - 1) + 1;
statusLabel.setText("Current Location is " + lineOfC + " row, " + col + " line");
}catch(Exception ex)
{
statusLabel.setText("No Location");
}
}
});
container.add(statusLabel,BorderLayout.SOUTH);
}
public void resetTitle(String s){
String str = s.substring(0,s.length()-5);
this.setTitle(str + " - XW");
}
public void dialogShow(){
JDialog dialog = new JDialog(this,"Page Setup");
dialog.setSize(400,300);
dialog.setLocationRelativeTo(this);
dialog.setVisible(true);
}
public static void main(String[] args){
Editor example = new Editor();
}
}