Adding icons to menu items
Okay, I'm a newbie at Java. I have a problem that I'm trying to solve. I added icons to the File menu item, that was easy, but how do I add icons to the other menu items? They are DefaultEditorKit. actions (cut copy paste undo redo) I can't seem to change their names either.
I'm also having problems with saving the changes I make in the text area.
Here's the whole code.
package components;
import java.awt.*;
import java.awt.event.*;
import java.util.HashMap;
import java.io.*;
import javax.swing.*;
import javax.swing.AbstractButton;
import javax.swing.text.*;
import javax.swing.event.*;
import javax.swing.undo.*;
publicclass TextComponentDemoextends JFrameimplements ActionListener{
JTextPane textPane;
AbstractDocument doc;
JTextArea changeLog;
JButton newButton, openButton, saveButton, undoButton, redoButton,/*cutButton, copyButton, pasteButton,*/ boldButton, italicButton, underlineButton;
protected String newline ="\n";
HashMap<Object, Action> actions;
File fFile =new File("default.txt");
JavaFilter fJavaFilter =new JavaFilter();
protected UndoAction undoAction;
protected RedoAction redoAction;
protected UndoManager undo =new UndoManager();
public TextComponentDemo(){
super("Notepad v1.0");
//Create the text pane and configure it.
textPane =new JTextPane();
textPane.setCaretPosition(0);
textPane.setMargin(new Insets(5,5,5,5));
StyledDocument styledDoc = textPane.getStyledDocument();
if (styledDocinstanceof AbstractDocument){
doc = (AbstractDocument)styledDoc;
}else{
System.err.println("Text pane's document isn't an AbstractDocument!");
System.exit(-1);
}
JScrollPane scrollPane =new JScrollPane(textPane);
scrollPane.setPreferredSize(new Dimension(600, 350));
newButton =new JButton ("", createImageIcon("images/new.png"));
newButton.setBackground(Color.white);
//newButton.setActionCommand("nou");
//newButton.addActionListener(this);
openButton =new JButton("", createImageIcon("images/open.png"));
openButton.setBackground(Color.white);
openButton.setActionCommand("deschide");
openButton.addActionListener(this);
saveButton =new JButton("", createImageIcon("images/save.png"));
saveButton.setBackground(Color.white);
saveButton.setActionCommand("salveaza");
saveButton.addActionListener(this);
Action actionBold =new StyledEditorKit.BoldAction();
actionBold.putValue(Action.NAME,"Bold");
boldButton =new JButton(actionBold);
boldButton.setBackground(Color.white);
Action actionItalic =new StyledEditorKit.ItalicAction();
actionItalic.putValue(Action.NAME,"Italic");
italicButton =new JButton(actionItalic);
italicButton.setBackground(Color.white);
Action actionUnderline =new StyledEditorKit.UnderlineAction();
actionUnderline.putValue(Action.NAME,"Underline");
underlineButton =new JButton(actionUnderline);
underlineButton.setBackground(Color.white);
String[] fontStrings ={"Arial","Arial Black","Comic Sans MS","Georgia","Serif","SansSerif","Times New Roman","Trebuchet MS","Verdana"};
JComboBox fontList =new JComboBox(fontStrings);
fontList.setSelectedIndex(0);
fontList.setBackground(Color.white);
fontList.setActionCommand("font");
fontList.addActionListener(this);
String[] sizeStrings ={"12","14","16","18","20","22","24","36","48"};
JComboBox sizeList =new JComboBox(sizeStrings);
sizeList.setSelectedIndex(0);
sizeList.setBackground(Color.white);
sizeList.setActionCommand("size");
sizeList.addActionListener(this);
JPanel buttonPanel =new JPanel();//use FlowLayout
buttonPanel.add(newButton);
buttonPanel.add(openButton);
buttonPanel.add(saveButton);
//buttonPanel.add(cutButton);
//buttonPanel.add(copyButton);
//buttonPanel.add(pasteButton);
buttonPanel.add(boldButton);
buttonPanel.add(italicButton);
buttonPanel.add(underlineButton);
buttonPanel.add(fontList);
buttonPanel.add(sizeList);
getContentPane().add(buttonPanel, BorderLayout.PAGE_START);
getContentPane().add(scrollPane, BorderLayout.CENTER);
//Set up the menu bar.
createActionTable(textPane);
JMenu fileMenu = createFileMenu();
JMenu editMenu = createEditMenu();
JMenu fontMenu = createFontMenu();
JMenu ajutorMenu = createAjutorMenu();
JMenuBar mb =new JMenuBar();
mb.add(fileMenu);
mb.add(editMenu);
mb.add(fontMenu);
mb.add(ajutorMenu);
setJMenuBar(mb);
//Start watching for undoable edits and caret changes.
doc.addUndoableEditListener(new MyUndoableEditListener());
}
//This one listens for edits that can be undone.
protectedclass MyUndoableEditListener
implements UndoableEditListener{
publicvoid undoableEditHappened(UndoableEditEvent e){
//Remember the edit and update the menus.
undo.addEdit(e.getEdit());
undoAction.updateUndoState();
redoAction.updateRedoState();
}
}
private ImageIcon createImageIcon (String fileName){
returnnew ImageIcon(fileName);
}
protected JMenu createFileMenu(){
JMenu menu =new JMenu("Fisier");
menu.setMnemonic(KeyEvent.VK_F);
JMenuItem menuItem;
ImageIcon iconNou =new ImageIcon("images/new.png");
menuItem =new JMenuItem("Nou", iconNou);
menuItem.setMnemonic(KeyEvent.VK_N);
menuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_N, ActionEvent.CTRL_MASK));
//menuItem.setActionCommand("nou");
//menuItem.addActionListener(this);
menu.add(menuItem);
menu.addSeparator();
ImageIcon iconOpen =new ImageIcon("images/open.png");
menuItem =new JMenuItem("Deschide", iconOpen);
menuItem.setMnemonic(KeyEvent.VK_O);
menuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_O, ActionEvent.CTRL_MASK));
menuItem.setActionCommand("deschide");
menuItem.addActionListener(this);
menu.add(menuItem);
ImageIcon iconSave =new ImageIcon("images/save.png");
menuItem =new JMenuItem("Salveaza", iconSave);
menuItem.setMnemonic(KeyEvent.VK_S);
menuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S, ActionEvent.CTRL_MASK));
menuItem.setActionCommand("deschide");
menuItem.addActionListener(this);
menu.add(menuItem);
menu.addSeparator();
ImageIcon iconQuit =new ImageIcon("images/quit.png");
menuItem =new JMenuItem("Iesire", iconQuit);
menuItem.setMnemonic(KeyEvent.VK_Q);
menuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_Q, ActionEvent.CTRL_MASK));
menuItem.setActionCommand("iesire");
menuItem.addActionListener(this);
menu.add(menuItem);
return menu;
}
publicvoid actionPerformed(ActionEvent e){
boolean status =false;
/* if ("nou".equals(e.getActionCommand())) {
nou();
}*/
if ("deschide".equals(e.getActionCommand())){
status = openFile();
if(!status)
JOptionPane.showMessageDialog(
null,
"Eroare la deschiderea fisierului!","Fisierul nu a putut fi deschis.",
JOptionPane.ERROR_MESSAGE
);
}
/* if ("salveaza".equals(e.getActionCommand())) {
status = saveFile();
if(!status)
JOptionPane.showMessageDialog(
null,
"Eroare IO in salvarea fisierului!", "Fisierul nu a putut fi salvat.",
JOptionPane.ERROR_MESSAGE
);
}*/
if ("iesire".equals(e.getActionCommand())){
System.exit(-1);
}
if ("font".equals(e.getActionCommand())){
JComboBox cb = (JComboBox)e.getSource();
String fontName = (String)cb.getSelectedItem();
String t =new String(textPane.getSelectedText());
//t.setText("fontName");
//t.setFont(new java.awt.Font(fontName, 0, 12));
//StyledEditorKit.FontFamilyAction font = new StyledEditorKit.FontFamilyAction(fontName, fontName);
}
}
boolean openFile(){
JFileChooser fc =new JFileChooser();
fc.setDialogTitle("Deschide Fisier");
fc.setFileSelectionMode(JFileChooser.FILES_ONLY);
fc.setCurrentDirectory(new File ("."));
fc.setFileFilter(fJavaFilter);
int result = fc.showOpenDialog(this);
if(result == JFileChooser.CANCEL_OPTION){
returntrue;
}
elseif(result == JFileChooser.APPROVE_OPTION){
fFile = fc.getSelectedFile();
String file_string = readFile(fFile);
if(file_string !=null){
textPane.setText(file_string);
}
else
returnfalse;
}
else{
returnfalse;
}
returntrue;
}
public String readFile (File file){
StringBuffer fileBuffer;
String fileString=null;
String line;
try{
FileReader in =new FileReader (file);
BufferedReader dis =new BufferedReader (in);
fileBuffer =new StringBuffer () ;
while ((line = dis.readLine ()) !=null){
fileBuffer.append (line +"\n");
}
in.close ();
fileString = fileBuffer.toString ();
}
catch (IOException e ){
returnnull;
}
return fileString;
}
/* boolean saveFile () {
File file = null;
JFileChooser fc = new JFileChooser ();
fc.setCurrentDirectory (new File ("."));
fc.setFileFilter (fJavaFilter);
fc.setSelectedFile (fFile);
int result = fc.showSaveDialog (this);
if (result == JFileChooser.CANCEL_OPTION) {
return true;
} else if (result == JFileChooser.APPROVE_OPTION) {
fFile = fc.getSelectedFile ();
if (fFile.exists ()) {
int response = JOptionPane.showConfirmDialog (null,
"Overwrite existing file?","Confirm Overwrite",
JOptionPane.OK_CANCEL_OPTION,
JOptionPane.QUESTION_MESSAGE);
if (response == JOptionPane.CANCEL_OPTION) return false;
}
return writeFile (fFile, textPane.getText ());
} else {
return false;
}
}*/
protected JMenu createEditMenu(){
JMenu menu =new JMenu("Editare");
menu.setMnemonic(KeyEvent.VK_E);
JMenuItem menuItem;
undoAction=new UndoAction();
menu.add(undoAction);
redoAction =new RedoAction();
menu.add(redoAction);
menu.addSeparator();
menu.add(getActionByName(DefaultEditorKit.cutAction));
menu.add(getActionByName(DefaultEditorKit.copyAction));
menu.add(getActionByName(DefaultEditorKit.pasteAction));
menu.addSeparator();
menu.add(getActionByName(DefaultEditorKit.selectAllAction));
return menu;
}
//Create the style menu.
protected JMenu createFontMenu(){
JMenu menu =new JMenu("Font");
menu.setMnemonic(KeyEvent.VK_F);
JMenu subMenu =new JMenu ("Stil ");
Action action =new StyledEditorKit.BoldAction();
action.putValue(Action.NAME,"Bold");
subMenu.add(action);
action =new StyledEditorKit.ItalicAction();
action.putValue(Action.NAME,"Italic");
subMenu.add(action);
action =new StyledEditorKit.UnderlineAction();
action.putValue(Action.NAME,"Underline");
subMenu.add(action);
menu.add(subMenu);
menu.addSeparator();
JMenu subMenu2 =new JMenu ("Marime ");
subMenu2.add(new StyledEditorKit.FontSizeAction("12", 12));
subMenu2.add(new StyledEditorKit.FontSizeAction("14", 14));
subMenu2.add(new StyledEditorKit.FontSizeAction("16", 16));
subMenu2.add(new StyledEditorKit.FontSizeAction("18", 18));
subMenu2.add(new StyledEditorKit.FontSizeAction("20", 20));
subMenu2.add(new StyledEditorKit.FontSizeAction("22", 22));
subMenu2.add(new StyledEditorKit.FontSizeAction("24", 24));
subMenu2.add(new StyledEditorKit.FontSizeAction("36", 36));
subMenu2.add(new StyledEditorKit.FontSizeAction("48", 48));
menu.add(subMenu2);
menu.addSeparator();
JMenu subMenu3 =new JMenu ("Familie ");
subMenu3.add(new StyledEditorKit.FontFamilyAction("Arial","Arial"));
subMenu3.add(new StyledEditorKit.FontFamilyAction("Arial Black","Arial Black"));
subMenu3.add(new StyledEditorKit.FontFamilyAction("Comic Sans MS","Comic Sans MS"));
subMenu3.add(new StyledEditorKit.FontFamilyAction("Georgia","Georgia"));
subMenu3.add(new StyledEditorKit.FontFamilyAction("Serif","Serif"));
subMenu3.add(new StyledEditorKit.FontFamilyAction("SansSerif","SansSerif"));
subMenu3.add(new StyledEditorKit.FontFamilyAction("Times New Roman","Times New Roman"));
subMenu3.add(new StyledEditorKit.FontFamilyAction("Trebuchet MS","Trebuchet MS"));
subMenu3.add(new StyledEditorKit.FontFamilyAction("Verdana","Verdana"));
menu.add(subMenu3);
menu.addSeparator();
JMenu subMenu4 =new JMenu ("Culoare ");
subMenu4.add(new StyledEditorKit.ForegroundAction("Rosu", Color.red));
subMenu4.add(new StyledEditorKit.ForegroundAction("Verde", Color.green));
subMenu4.add(new StyledEditorKit.ForegroundAction("Albastru", Color.blue));
subMenu4.add(new StyledEditorKit.ForegroundAction("Galben", Color.yellow));
subMenu4.add(new StyledEditorKit.ForegroundAction("Gri", Color.gray));
subMenu4.add(new StyledEditorKit.ForegroundAction("Gri inchis", Color.darkGray));
subMenu4.add(new StyledEditorKit.ForegroundAction("Negru", Color.black));
menu.add(subMenu4);
return menu;
}
protected JMenu createAjutorMenu(){
JMenu menu =new JMenu("Ajutor");
menu.setMnemonic(KeyEvent.VK_J);
return menu;
}
privatevoid createActionTable(JTextComponent textComponent){
actions =new HashMap<Object, Action>();
Action[] actionsArray = textComponent.getActions();
for (int i = 0; i < actionsArray.length; i++){
Action a = actionsArray[i];
actions.put(a.getValue(Action.NAME), a);
}
}
private Action getActionByName(String name){
return actions.get(name);
}
class UndoActionextends AbstractAction{
public UndoAction(){
super("Undo");
setEnabled(false);
}
publicvoid actionPerformed(ActionEvent e){
try{
undo.undo();
}catch (CannotUndoException ex){
System.out.println("Unable to undo: " + ex);
ex.printStackTrace();
}
updateUndoState();
redoAction.updateRedoState();
}
protectedvoid updateUndoState(){
if (undo.canUndo()){
setEnabled(true);
putValue(Action.NAME, undo.getUndoPresentationName());
}else{
setEnabled(false);
putValue(Action.NAME,"Undo");
}
}
}
class RedoActionextends AbstractAction{
public RedoAction(){
super("Redo");
setEnabled(false);
}
publicvoid actionPerformed(ActionEvent e){
try{
undo.redo();
}catch (CannotRedoException ex){
System.out.println("Unable to redo: " + ex);
ex.printStackTrace();
}
updateRedoState();
undoAction.updateUndoState();
}
protectedvoid updateRedoState(){
if (undo.canRedo()){
setEnabled(true);
putValue(Action.NAME, undo.getRedoPresentationName());
}else{
setEnabled(false);
putValue(Action.NAME,"Redo");
}
}
}
privatestaticvoid createAndShowGUI(){
final TextComponentDemo frame =new TextComponentDemo();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
frame.setVisible(true);
}
publicstaticvoid main(String[] args){
SwingUtilities.invokeLater(new Runnable(){
publicvoid run(){
UIManager.put("swing.boldMetal", Boolean.FALSE);
createAndShowGUI();
}
});
}
}
class JavaFilterextends javax.swing.filechooser.FileFilter
{
publicboolean accept (File f){
return f.getName ().toLowerCase ().endsWith (".txt")
|| f.isDirectory ();
}
public String getDescription (){
return"Fisiere text (*.txt)";
}
}
