/*******************************************************************************
* Copyright (c) 2000, 2012 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.swt.examples.addressbook;
/* Imports */
import java.io.*;
import java.util.*;
import org.eclipse.swt.*;
import org.eclipse.swt.events.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;
/**
* AddressBookExample is an example that uses <code>org.eclipse.swt</code>
* libraries to implement a simple address book. This application has
* save, load, sorting, and searching functions common
* to basic address books.
*/
public class AddressBook {
private static ResourceBundle resAddressBook = ResourceBundle.getBundle("examples_addressbook");
private Shell shell;
private Table table;
private SearchDialog searchDialog;
private File file;
private boolean isModified;
private String[] copyBuffer;
private int lastSortColumn= -1;
private static final String DELIMITER = "\t";
private static final String[] columnNames = {resAddressBook.getString("Last_name"),
resAddressBook.getString("First_name"),
resAddressBook.getString("Business_phone"),
resAddressBook.getString("Home_phone"),
resAddressBook.getString("Email"),
resAddressBook.getString("Fax")};
public static void main(String[] args) {
Display display = new Display();
AddressBook application = new AddressBook();
Shell shell = application.open(display);
while(!shell.isDisposed()){
if(!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
public Shell open(Display display) {
shell = new Shell(display);
shell.setLayout(new FillLayout());
shell.addShellListener(new ShellAdapter() {
public void shellClosed(ShellEvent e) {
e.doit = closeAddressBook();
}
});
createMenuBar();
searchDialog = new SearchDialog(shell);
searchDialog.setSearchAreaNames(columnNames);
searchDialog.setSearchAreaLabel(resAddressBook.getString("Column"));
searchDialog.addFindListener(new FindListener () {
public boolean find() {
return findEntry();
}
});
table = new Table(shell, SWT.SINGLE | SWT.BORDER | SWT.FULL_SELECTION);
table.setHeaderVisible(true);
table.setMenu(createPopUpMenu());
table.addSelectionListener(new SelectionAdapter() {
public void widgetDefaultSelected(SelectionEvent e) {
TableItem[] items = table.getSelection();
if (items.length > 0) editEntry(items[0]);
}
});
for(int i = 0; i < columnNames.length; i++) {
TableColumn column = new TableColumn(table, SWT.NONE);
column.setText(columnNames[i]);
column.setWidth(150);
final int columnIndex = i;
column.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
sort(columnIndex);
}
});
}
newAddressBook();
shell.setSize(table.computeSize(SWT.DEFAULT, SWT.DEFAULT).x, 300);
shell.open();
return shell;
}
private boolean closeAddressBook() {
if(isModified) {
//ask user if they want to save current address book
MessageBox box = new MessageBox(shell, SWT.ICON_WARNING | SWT.YES | SWT.NO | SWT.CANCEL);
box.setText(shell.getText());
box.setMessage(resAddressBook.getString("Close_save"));
int choice = box.open();
if(choice == SWT.CANCEL) {
return false;
} else if(choice == SWT.YES) {
if (!save()) return false;
}
}
TableItem[] items = table.getItems();
for (int i = 0; i < items.length; i ++) {
items[i].dispose();
}
return true;
}
/**
* Creates the menu at the top of the shell where most
* of the programs functionality is accessed.
*
* @return The <code>Menu</code> widget that was created
*/
private Menu createMenuBar() {
Menu menuBar = new Menu(shell, SWT.BAR);
shell.setMenuBar(menuBar);
//create each header and subMenu for the menuBar
createFileMenu(menuBar);
createEditMenu(menuBar);
createSearchMenu(menuBar);
createHelpMenu(menuBar);
return menuBar;
}
/**
* Converts an encoded <code>String</code> to a String array representing a table entry.
*/
private String[] decodeLine(String line) {
if(line == null) return null;
String[] parsedLine = new String[table.getColumnCount()];
for(int i = 0; i < parsedLine.length - 1; i++) {
int index = line.indexOf(DELIMITER);
if (index > -1) {
parsedLine[i] = line.substring(0, index);
line = line.substring(index + DELIMITER.length(), line.length());
} else {
return null;
}
}
if (line.indexOf(DELIMITER) != -1) return null;
parsedLine[parsedLine.length - 1] = line;
return parsedLine;
}
private void displayError(String msg) {
MessageBox box = new MessageBox(shell, SWT.ICON_ERROR);
box.setMessage(msg);
box.open();
}
private void editEntry(TableItem item) {
DataEntryDialog dialog = new DataEntryDialog(shell);
dialog.setLabels(columnNames);
String[] values = new String[table.getColumnCount()];
for (int i = 0; i < values.length; i++) {
values[i] = item.getText(i);
}
dialog.setValues(values);
values = dialog.open();
if (values != null) {
item.setText(values);
isModified = true;
}
}
private String encodeLine(String[] tableItems) {
String line = "";
for (int i = 0; i < tableItems.length - 1; i++) {
line += tableItems[i] + DELIMITER;
}
line += tableItems[tableItems.length - 1] + "\n";
return line;
}
private boolean findEntry() {
Cursor waitCursor = new Cursor(shell.getDisplay(), SWT.CURSOR_WAIT);
shell.setCursor(waitCursor);
boolean matchCase = searchDialog.getMatchCase();
boolean matchWord = searchDialog.getMatchWord();
String searchString = searchDialog.getSearchString();
int column = searchDialog.getSelectedSearchArea();
searchString = matchCase ? searchString : searchString.toLowerCase();
boolean found = false;
if (searchDialog.getSearchDown()) {
for(int i = table.getSelectionIndex() + 1; i < table.getItemCount(); i++) {
if (found = findMatch(searchString, table.getItem(i), column, matchWord, matchCase)){
table.setSelection(i);
break;
}
}
} else {
for(int i = table.getSelectionIndex() - 1; i > -1; i--) {
if (found = findMatch(searchString, table.getItem(i), column, matchWord, matchCase)){
table.setSelection(i);
break;
}
}
}
shell.setCursor(null);
waitCursor.dispose();
return found;
}
private boolean findMatch(String searchString, TableItem item, int column, boolean matchWord, boolean matchCase) {
String tableText = matchCase ? item.getText(column) : item.getText(column).toLowerCase();
if (matchWord) {
if (tableText != null && tableText.equals(searchString)) {
return true;
}
} else {
if(tableText!= null && tableText.indexOf(searchString) != -1) {
return true;
}
}
return false;
}
private void newAddressBook() {
shell.setText(resAddressBook.getString("Title_bar") + resAddressBook.getString("New_title"));
file = null;
isModified = false;
}
private void newEntry() {
DataEntryDialog dialog = new DataEntryDialog(shell);
dialog.setLabels(columnNames);
String[] data = dialog.open();
if (data != null) {
TableItem item = new TableItem(table, SWT.NONE);
item.setText(data);
isModified = true;
}
}
private void openAddressBook() {
FileDialog fileDialog = new FileDialog(shell, SWT.OPEN);
fileDialog.setFilterExtensions(new String[] {"*.adr;", "*.*"});
fileDialog.setFilterNames(new String[] {resAddressBook.getString("Book_filter_name") + " (*.adr)",
resAddressBook.getString("All_filter_name") + " (*.*)"});
String name = fileDialog.open();
if(name == null) return;
File file = new File(name);
if (!file.exists()) {
displayError(resAddressBook.getString("File")+file.getName()+" "+resAddressBook.getString("Does_not_exist"));
return;
}
Cursor waitCursor = new Cursor(shell.getDisplay(), SWT.CURSOR_WAIT);
shell.setCursor(waitCursor);
FileReader fileReader = null;
BufferedReader bufferedReader = null;
String[] data = new String[0];
try {
fileReader = new FileReader(file.getAbsolutePath());
bufferedReader = new BufferedReader(fileReader);
String nextLine = bufferedReader.readLine();
while (nextLine != null){
String[] newData = new String[data.length + 1];
System.arraycopy(data, 0, newData, 0, data.length);
newData[data.length] = nextLine;
data = newData;
nextLine = bufferedReader.readLine();
}
} catch(FileNotFoundException e) {
displayError(resAddressBook.getString("File_not_found") + "\n" + file.getName());
return;
} catch (IOException e ) {
displayError(resAddressBook.getString("IO_error_read") + "\n" + file.getName());
return;
} finally {
shell.setCursor(null);
waitCursor.dispose();
if(fileReader != null) {
try {
fileReader.close();
} catch(IOException e) {
displayError(resAddressBook.getString("IO_error_close") + "\n" + file.getName());
return;
}
}
}
String[][] tableInfo = new String[data.length][table.getColumnCount()];
int writeIndex = 0;
for (int i = 0; i < data.length; i++) {
String[] line = decodeLine(data[i]);
if (line != null) tableInfo[writeIndex++] = line;
}
if (writeIndex != data.length) {
String[][] result = new String[writeIndex][table.getColumnCount()];
System.arraycopy(tableInfo, 0, result, 0, writeIndex);
tableInfo = result;
}
Arrays.sort(tableInfo, new RowComparator(0));
for (int i = 0; i < tableInfo.length; i++) {
TableItem item = new TableItem(table, SWT.NONE);
item.setText(tableInfo[i]);
}
shell.setText(resAddressBook.getString("Title_bar")+fileDialog.getFileName());
isModified = false;
this.file = file;
}
private boolean save() {
if(file == null) return saveAs();
Cursor waitCursor = new Cursor(shell.getDisplay(), SWT.CURSOR_WAIT);
shell.setCursor(waitCursor);
TableItem[] items = table.getItems();
String[] lines = new String[items.length];
for(int i = 0; i < items.length; i++) {
String[] itemText = new String[table.getColumnCount()];
for (int j = 0; j < itemText.length; j++) {
itemText[j] = items[i].getText(j);
}
lines[i] = encodeLine(itemText);
}
FileWriter fileWriter = null;
try {
fileWriter = new FileWriter(file.getAbsolutePath(), false);
for (int i = 0; i < lines.length; i++) {
fileWriter.write(lines[i]);
}
} catch(FileNotFoundException e) {
displayError(resAddressBook.getString("File_not_found") + "\n" + file.getName());
return false;
} catch(IOException e ) {
displayError(resAddressBook.getString("IO_error_write") + "\n" + file.getName());
return false;
} finally {
shell.setCursor(null);
waitCursor.dispose();
if(fileWriter != null) {
try {
fileWriter.close();
} catch(IOException e) {
displayError(resAddressBook.getString("IO_error_close") + "\n" + file.getName());
return false;
}
}
}
shell.setText(resAddressBook.getString("Title_bar")+file.getName());
isModified = false;
return true;
}
private boolean saveAs() {
FileDialog saveDialog = new FileDialog(shell, SWT.SAVE);
saveDialog.setFilterExtensions(new String[] {"*.adr;", "*.*"});
saveDialog.setFilterNames(new String[] {"Address Books (*.adr)", "All Files "});
saveDialog.open();
String name = saveDialog.getFileName();
if(name.equals("")) return false;
if(name.indexOf(".adr") != name.length() - 4) {
name += ".adr";
}
File file = new File(saveDialog.getFilterPath(), name);
if(file.exists()) {
MessageBox box = new MessageBox(shell, SWT.ICON_WARNING | SWT.YES | SWT.NO);
box.setText(resAddressBook.getString("Save_as_title"));
box.setMessage(resAddressBook.getString("File") + file.getName()+" "+resAddressBook.getString("Query_overwrite"));
if(box.open() != SWT.YES) {
return false;
}
}
this.file = file;
return save();
}
private void sort(int column) {
if(table.getItemCount() <= 1) return;
TableItem[] items = table.getItems();
String[][] data = new String[items.length][table.getColumnCount()];
for(int i = 0; i < items.length; i++) {
for(int j = 0; j < table.getColumnCount(); j++) {
data[i][j] = items[i].getText(j);
}
}
Arrays.sort(data, new RowComparator(column));
if (lastSortColumn != column) {
table.setSortColumn(table.getColumn(column));
table.setSortDirection(SWT.DOWN);
for (int i = 0; i < data.length; i++) {
items[i].setText(data[i]);
}
lastSortColumn = column;
} else {
// reverse order if the current column is selected again
table.setSortDirection(SWT.UP);
int j = data.length -1;
for (int i = 0; i < data.length; i++) {
items[i].setText(data[j--]);
}
lastSortColumn = -1;
}
}
/**
* Creates all the items located in the File submenu and
* associate all the menu items with their appropriate
* functions.
*
* @param menuBar Menu
* the <code>Menu</code> that file contain
* the File submenu.
*/
private void createFileMenu(Menu menuBar) {
//File menu.
MenuItem item = new MenuItem(menuBar, SWT.CASCADE);
item.setText(resAddressBook.getString("File_menu_title"));
Menu menu = new Menu(shell, SWT.DROP_DOWN);
item.setMenu(menu);
/**
* Adds a listener to handle enabling and disabling
* some items in the Edit submenu.
*/
menu.addMenuListener(new MenuAdapter() {
public void menuShown(MenuEvent e) {
Menu menu = (Menu)e.widget;
MenuItem[] items = menu.getItems();
items[1].setEnabled(table.getSelectionCount() != 0); // edit contact
items[5].setEnabled((file != null) && isModified); // save
items[6].setEnabled(table.getItemCount() != 0); // save as
}
});
//File -> New Contact
MenuItem subItem = new MenuItem(menu, SWT.NONE);
subItem.setText(resAddressBook.getString("New_contact"));
subItem.setAccelerator(SWT.MOD1 + 'N');
subItem.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
newEntry();
}
});
subItem = new MenuItem(menu, SWT.NONE);
subItem.setText(resAddressBook.getString("Edit_contact"));
subItem.setAccelerator(SWT.MOD1 + 'E');
subItem.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
TableItem[] items = table.getSelection();
if (items.length == 0) return;
editEntry(items[0]);
}
});
new MenuItem(menu, SWT.SEPARATOR);
//File -> New Address Book
subItem = new MenuItem(menu, SWT.NONE);
subItem.setText(resAddressBook.getString("New_address_book"));
subItem.setAccelerator(SWT.MOD1 + 'B');
subItem.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
if (closeAddressBook()) {
newAddressBook();
}
}
});
//File -> Open
subItem = new MenuItem(menu, SWT.NONE);
subItem.setText(resAddressBook.getString("Open_address_book"));
subItem.setAccelerator(SWT.MOD1 + 'O');
subItem.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
if (closeAddressBook()) {
openAddressBook();
}
}
});
//File -> Save.
subItem = new MenuItem(menu, SWT.NONE);
subItem.setText(resAddressBook.getString("Save_address_book"));
subItem.setAccelerator(SWT.MOD1 + 'S');
subItem.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
save();
}
});
//File -> Save As.
subItem = new MenuItem(menu, SWT.NONE);
subItem.setText(resAddressBook.getString("Save_book_as"));
subItem.setAccelerator(SWT.MOD1 + 'A');
subItem.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
saveAs();
}
});
new MenuItem(menu, SWT.SEPARATOR);
//File -> Exit.
subItem = new MenuItem(menu, SWT.NONE);
subItem.setText(resAddressBook.getString("Exit"));
subItem.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
shell.close();
}
});
}
/**
* Creates all the items located in the Edit submenu and
* associate all the menu items with their appropriate
* functions.
*
* @param menuBar Menu
* the <code>Menu</code> that file contain
* the Edit submenu.
*
* @see #createSortMenu()
*/
private MenuItem createEditMenu(Menu menuBar) {
//Edit menu.
MenuItem item = new MenuItem(menuBar, SWT.CASCADE);
item.setText(resAddressBook.getString("Edit_menu_title"));
Menu menu = new Menu(shell, SWT.DROP_DOWN);
item.setMenu(menu);
/**
* Add a listener to handle enabling and disabling
* some items in the Edit submenu.
*/
menu.addMenuListener(new MenuAdapter() {
public void menuShown(MenuEvent e) {
Menu menu = (Menu)e.widget;
MenuItem[] items = menu.getItems();
int count = table.getSelectionCount();
items[0].setEnabled(count != 0); // edit
items[1].setEnabled(count != 0); // copy
items[2].setEnabled(copyBuffer != null); // paste
items[3].setEnabled(count != 0); // delete
items[5].setEnabled(table.getItemCount() != 0); // sort
}
});
//Edit -> Edit
MenuItem subItem = new MenuItem(menu, SWT.CASCADE);
subItem.setText(resAddressBook.getString("Edit"));
subItem.setAccelerator(SWT.MOD1 + 'E');
subItem.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
TableItem[] items = table.getSelection();
if (items.length == 0) return;
editEntry(items[0]);
}
});
//Edit -> Copy
subItem = new MenuItem(menu, SWT.NONE);
subItem.setText(resAddressBook.getString("Copy"));
subItem.setAccelerator(SWT.MOD1 + 'C');
subItem.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
TableItem[] items = table.getSelection();
if (items.length == 0) return;
copyBuffer = new String[table.getColumnCount()];
for (int i = 0; i < copyBuffer.length; i++) {
copyBuffer[i] = items[0].getText(i);
}
}
});
//Edit -> Paste
subItem = new MenuItem(menu, SWT.NONE);
subItem.setText(resAddressBook.getString("Paste"));
subItem.setAccelerator(SWT.MOD1 + 'V');
subItem.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
if (copyBuffer == null) return;
TableItem item = new TableItem(table, SWT.NONE);
item.setText(copyBuffer);
isModified = true;
}
});
//Edit -> Delete
subItem = new MenuItem(menu, SWT.NONE);
subItem.setText(resAddressBook.getString("Delete"));
subItem.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
TableItem[] items = table.getSelection();
if (items.length == 0) return;
items[0].dispose();
isModified = true; }
});
new MenuItem(menu, SWT.SEPARATOR);
//Edit -> Sort(Cascade)
subItem = new MenuItem(menu, SWT.CASCADE);
subItem.setText(resAddressBook.getString("Sort"));
Menu submenu = createSortMenu();
subItem.setMenu(submenu);
return item;
}
/**
* Creates all the items located in the Sort cascading submenu and
* associate all the menu items with their appropriate
* functions.
*
* @return Menu
* The cascading menu with all the sort menu items on it.
*/
private Menu createSortMenu() {
Menu submenu = new Menu(shell, SWT.DROP_DOWN);
MenuItem subitem;
for(int i = 0; i < columnNames.length; i++) {
subitem = new MenuItem (submenu, SWT.NONE);
subitem.setText(columnNames [i]);
final int column = i;
subitem.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
sort(column);
}
});
}
return submenu;
}
/**
* Creates all the items located in the Search submenu and
* associate all the menu items with their appropriate
* functions.
*
* @param menuBar Menu
* the <code>Menu</code> that file contain
* the Search submenu.
*/
private void createSearchMenu(Menu menuBar) {
//Search menu.
MenuItem item = new MenuItem(menuBar, SWT.CASCADE);
item.setText(resAddressBook.getString("Search_menu_title"));
Menu searchMenu = new Menu(shell, SWT.DROP_DOWN);
item.setMenu(searchMenu);
//Search -> Find...
item = new MenuItem(searchMenu, SWT.NONE);
item.setText(resAddressBook.getString("Find"));
item.setAccelerator(SWT.MOD1 + 'F');
item.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
searchDialog.setMatchCase(false);
searchDialog.setMatchWord(false);
searchDialog.setSearchDown(true);
searchDialog.setSearchString("");
searchDialog.setSelectedSearchArea(0);
searchDialog.open();
}
});
//Search -> Find Next
item = new MenuItem(searchMenu, SWT.NONE);
item.setText(resAddressBook.getString("Find_next"));
item.setAccelerator(SWT.F3);
item.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
searchDialog.open();
}
});
}
/**
* Creates all items located in the popup menu and associates
* all the menu items with their appropriate functions.
*
* @return Menu
* The created popup menu.
*/
private Menu createPopUpMenu() {
Menu popUpMenu = new Menu(shell, SWT.POP_UP);
/**
* Adds a listener to handle enabling and disabling
* some items in the Edit submenu.
*/
popUpMenu.addMenuListener(new MenuAdapter() {
public void menuShown(MenuEvent e) {
Menu menu = (Menu)e.widget;
MenuItem[] items = menu.getItems();
int count = table.getSelectionCount();
items[2].setEnabled(count != 0); // edit
items[3].setEnabled(count != 0); // copy
items[4].setEnabled(copyBuffer != null); // paste
items[5].setEnabled(count != 0); // delete
items[7].setEnabled(table.getItemCount() != 0); // find
}
});
//New
MenuItem item = new MenuItem(popUpMenu, SWT.CASCADE);
item.setText(resAddressBook.getString("Pop_up_new"));
item.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
newEntry();
}
});
new MenuItem(popUpMenu, SWT.SEPARATOR);
//Edit
item = new MenuItem(popUpMenu, SWT.CASCADE);
item.setText(resAddressBook.getString("Pop_up_edit"));
item.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
TableItem[] items = table.getSelection();
if (items.length == 0) return;
editEntry(items[0]);
}
});
//Copy
item = new MenuItem(popUpMenu, SWT.CASCADE);
item.setText(resAddressBook.getString("Pop_up_copy"));
item.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
TableItem[] items = table.getSelection();
if (items.length == 0) return;
copyBuffer = new String[table.getColumnCount()];
for (int i = 0; i < copyBuffer.length; i++) {
copyBuffer[i] = items[0].getText(i);
}
}
});
//Paste
item = new MenuItem(popUpMenu, SWT.CASCADE);
item.setText(resAddressBook.getString("Pop_up_paste"));
item.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
if (copyBuffer == null) return;
TableItem item = new TableItem(table, SWT.NONE);
item.setText(copyBuffer);
isModified = true;
}
});
//Delete
item = new MenuItem(popUpMenu, SWT.CASCADE);
item.setText(resAddressBook.getString("Pop_up_delete"));
item.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
TableItem[] items = table.getSelection();
if (items.length == 0) return;
items[0].dispose();
isModified = true;
}
});
new MenuItem(popUpMenu, SWT.SEPARATOR);
//Find...
item = new MenuItem(popUpMenu, SWT.NONE);
item.setText(resAddressBook.getString("Pop_up_find"));
item.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
searchDialog.open();
}
});
return popUpMenu;
}
/**
* Creates all the items located in the Help submenu and
* associate all the menu items with their appropriate
* functions.
*
* @param menuBar Menu
* the <code>Menu</code> that file contain
* the Help submenu.
*/
private void createHelpMenu(Menu menuBar) {
//Help Menu
MenuItem item = new MenuItem(menuBar, SWT.CASCADE);
item.setText(resAddressBook.getString("Help_menu_title"));
Menu menu = new Menu(shell, SWT.DROP_DOWN);
item.setMenu(menu);
//Help -> About Text Editor
MenuItem subItem = new MenuItem(menu, SWT.NONE);
subItem.setText(resAddressBook.getString("About"));
subItem.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
MessageBox box = new MessageBox(shell, SWT.NONE);
box.setText(resAddressBook.getString("About_1") + shell.getText());
box.setMessage(shell.getText() + resAddressBook.getString("About_2"));
box.open();
}
});
}
/**
* To compare entries (rows) by the given column
*/
private class RowComparator implements Comparator {
private int column;
/**
* Constructs a RowComparator given the column index
* @param col The index (starting at zero) of the column
*/
public RowComparator(int col) {
column = col;
}
/**
* Compares two rows (type String[]) using the specified
* column entry.
* @param obj1 First row to compare
* @param obj2 Second row to compare
* @return negative if obj1 less than obj2, positive if
* obj1 greater than obj2, and zero if equal.
*/
public int compare(Object obj1, Object obj2) {
String[] row1 = (String[])obj1;
String[] row2 = (String[])obj2;
return row1[column].compareTo(row2[column]);
}
}
}