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package tim.prune.function;
import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.util.Locale;
import javax.swing.BorderFactory;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JDialog;
import javax.swing.JFileChooser;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.SwingConstants;
import javax.swing.border.EtchedBorder;
import tim.prune.App;
import tim.prune.GenericFunction;
import tim.prune.I18nManager;
import tim.prune.config.Config;
import tim.prune.load.GenericFileFilter;
/**
* Class to show the popup window for setting the language code / file
*/
public class SetLanguage extends GenericFunction
{
private JDialog _dialog = null;
private JComboBox _languageDropDown = null;
private JTextField _langFileBox = null;
private int _startIndex = 0;
/** Names of languages for display in dropdown (not translated) */
private static final String[] LANGUAGE_NAMES = {"\u010de\u0161tina", "deutsch", "english", "american english",
"espa\u00F1ol", "fran\u00E7ais", "italiano", "magyar", "nederlands", "polski",
"portugu\u00EAs", "\u0440\u0443\u0441\u0441\u043a\u0438\u0439 (russian)", "\u4e2d\u6587 (chinese)", "\u65E5\u672C\u8A9E (japanese)",
"\uD55C\uAD6D\uC5B4/\uC870\uC120\uB9D0 (korean)", "schwiizerd\u00FC\u00FCtsch", "t\u00FCrk\u00E7e",
"rom\u00E2n\u0103", "afrikaans", "bahasa indonesia"
};
/** Associated language codes (must be in same order as names!) */
private static final String[] LANGUAGE_CODES = {"cz", "de", "en", "en_us", "es", "fr", "it", "hu",
"nl", "pl", "pt", "ru", "zh", "ja", "ko", "de_ch", "tr", "ro", "af", "in"
};
/**
* Constructor
* @param inApp app object
*/
public SetLanguage(App inApp)
{
super(inApp);
}
/**
* Return the name key for this function
*/
public String getNameKey()
{
return "function.setlanguage";
}
/**
* @return the contents of the window as a Component
*/
private Component makeContents()
{
JPanel mainPanel = new JPanel();
mainPanel.setLayout(new BorderLayout(0, 5));
JPanel midPanel = new JPanel();
midPanel.setLayout(new BoxLayout(midPanel, BoxLayout.Y_AXIS));
midPanel.setBorder(BorderFactory.createEmptyBorder(3, 3, 3, 3));
// description labels
JLabel label1 = new JLabel("<html>" + I18nManager.getText("dialog.setlanguage.firstintro") + "</html>");
label1.setAlignmentX(Component.LEFT_ALIGNMENT);
label1.setHorizontalAlignment(SwingConstants.LEFT);
midPanel.add(label1);
JLabel label2 = new JLabel("<html>" + I18nManager.getText("dialog.setlanguage.secondintro") + "</html>");
label2.setAlignmentX(Component.LEFT_ALIGNMENT);
label2.setHorizontalAlignment(SwingConstants.LEFT);
midPanel.add(label2);
midPanel.add(Box.createVerticalStrut(10));
// built-in languages
JPanel builtinPanel = new JPanel();
builtinPanel.setBorder(BorderFactory.createCompoundBorder(
BorderFactory.createEtchedBorder(EtchedBorder.LOWERED), BorderFactory.createEmptyBorder(3, 3, 3, 3))
);
builtinPanel.setLayout(new BoxLayout(builtinPanel, BoxLayout.X_AXIS));
builtinPanel.add(new JLabel(I18nManager.getText("dialog.setlanguage.language") + " : "));
// Language dropdown
_languageDropDown = new JComboBox(LANGUAGE_NAMES);
builtinPanel.add(_languageDropDown);
builtinPanel.add(Box.createHorizontalGlue());
JButton selectLangButton = new JButton(I18nManager.getText("button.select"));
selectLangButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
selectLanguage();
}
});
builtinPanel.add(selectLangButton);
builtinPanel.setAlignmentX(Component.LEFT_ALIGNMENT);
midPanel.add(builtinPanel);
midPanel.add(Box.createVerticalStrut(4));
// external language file
JPanel extraPanel = new JPanel();
extraPanel.setBorder(BorderFactory.createCompoundBorder(
BorderFactory.createEtchedBorder(EtchedBorder.LOWERED), BorderFactory.createEmptyBorder(3, 3, 3, 3))
);
extraPanel.setLayout(new BoxLayout(extraPanel, BoxLayout.X_AXIS));
extraPanel.add(new JLabel(I18nManager.getText("dialog.setlanguage.languagefile") + " : "));
_langFileBox = new JTextField("some_long_example_file_path.txt");
extraPanel.add(_langFileBox);
// browse button
JButton browseButton = new JButton(I18nManager.getText("button.browse"));
extraPanel.add(browseButton);
browseButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
chooseFile();
}
});
extraPanel.add(Box.createHorizontalStrut(5));
JButton selectFileButton = new JButton(I18nManager.getText("button.select"));
selectFileButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
selectLanguageFile();
}
});
extraPanel.add(selectFileButton);
extraPanel.setAlignmentX(Component.LEFT_ALIGNMENT);
midPanel.add(Box.createVerticalStrut(5));
midPanel.add(extraPanel);
midPanel.add(Box.createVerticalGlue());
mainPanel.add(midPanel, BorderLayout.CENTER);
// Cancel button at the bottom
JPanel buttonPanel = new JPanel();
buttonPanel.setLayout(new FlowLayout(FlowLayout.RIGHT));
JButton cancelButton = new JButton(I18nManager.getText("button.cancel"));
cancelButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e)
{
_dialog.dispose();
}
});
buttonPanel.add(cancelButton);
mainPanel.add(buttonPanel, BorderLayout.SOUTH);
return mainPanel;
}
/**
* Show window
*/
public void begin()
{
if (_dialog == null)
{
_dialog = new JDialog(_parentFrame, I18nManager.getText(getNameKey()));
_dialog.setLocationRelativeTo(_parentFrame);
_dialog.getContentPane().add(makeContents());
_dialog.pack();
}
// Try to use code from config
String code = Config.getConfigString(Config.KEY_LANGUAGE_CODE);
int index = getLanguageIndex(code);
// If it's not present, then use system locale settings
if (index < 0) {
Locale locale = Locale.getDefault();
index = getLanguageIndex(locale.getLanguage() + "_" + locale.getCountry());
if (index < 0) {
index = getLanguageIndex(locale.getLanguage());
}
}
// Select appropriate language from dropdown
if (index >= 0) {
_languageDropDown.setSelectedIndex(index);
}
_startIndex = _languageDropDown.getSelectedIndex();
// Get language file from config
String langfile = Config.getConfigString(Config.KEY_LANGUAGE_FILE);
_langFileBox.setText(langfile==null?"":langfile);
_dialog.setVisible(true);
}
/**
* Find the index of the given language code
* @param inCode code to look for
* @return index if found or -1
*/
private static int getLanguageIndex(String inCode)
{
int idx = -1;
if (inCode != null && !inCode.equals("")) {
for (int i=0; i<LANGUAGE_CODES.length; i++) {
if (LANGUAGE_CODES[i].equalsIgnoreCase(inCode)) {
idx = i;
}
}
}
return idx;
}
/**
* Set the currently selected language in the Config
*/
private void selectLanguage()
{
int index = _languageDropDown.getSelectedIndex();
// If index hasn't changed then don't dismiss dialog
if (index >= 0 && index != _startIndex)
{
String code = LANGUAGE_CODES[index];
// Set code and langfile in config
Config.setConfigString(Config.KEY_LANGUAGE_CODE, code);
Config.setConfigString(Config.KEY_LANGUAGE_FILE, null);
_dialog.dispose();
showEndMessage();
}
}
/**
* Select the currently selected language file to use for texts
*/
private void selectLanguageFile()
{
final String oldPath = Config.getConfigString(Config.KEY_LANGUAGE_FILE);
String filename = _langFileBox.getText();
// Check there is an entry in the box
if (filename != null && !filename.equals(""))
{
// Check the file exists and is readable
File textsFile = new File(filename);
if (!textsFile.exists() || !textsFile.canRead())
{
_app.showErrorMessage(getNameKey(), "error.load.noread");
}
else if (!languageFileLooksOk(textsFile))
{
_app.showErrorMessage(getNameKey(), "error.language.wrongfile");
}
else if (oldPath == null || !textsFile.getAbsolutePath().equalsIgnoreCase(oldPath))
{
// Set in Config
Config.setConfigString(Config.KEY_LANGUAGE_FILE, textsFile.getAbsolutePath());
_dialog.dispose();
showEndMessage();
}
}
else {
// if file was previously selected, and now it's blank, then reset Config
if (oldPath != null && oldPath.length() > 0)
{
Config.setConfigString(Config.KEY_LANGUAGE_FILE, null);
_dialog.dispose();
showEndMessage();
}
}
}
/**
* Check the given file to see if it looks like a language file
* @param inFile File object to load
* @return true if file looks ok
*/
private static boolean languageFileLooksOk(File inFile)
{
boolean ok = false;
boolean wrong = false;
BufferedReader reader = null;
try
{
// Read through text file looking for lines with the right start
reader = new BufferedReader(new FileReader(inFile));
String currLine = reader.readLine();
while (currLine != null && !ok && !wrong)
{
if (currLine.trim().length() > 0 && currLine.matches("[a-z.]+=.+")) {
ok = true;
}
if (currLine.indexOf('\0', 0) >= 0) {
wrong = true;
}
currLine = reader.readLine();
}
}
catch (Exception e) {} // ignore exceptions, flag remains as set
finally {
try {reader.close();} catch (Exception e2) {}
}
return ok && !wrong;
}
/**
* Function activated by the "Browse..." button to select a file
*/
private void chooseFile()
{
JFileChooser chooser = new JFileChooser();
chooser.addChoosableFileFilter(
new GenericFileFilter("filetype.txt", new String[] {"txt", "text"}));
chooser.setAcceptAllFileFilterUsed(true);
// Set start path from currently selected file
String currPath = _langFileBox.getText();
if (currPath != null && currPath.length() > 1) {
chooser.setSelectedFile(new File(currPath));
}
if (chooser.showOpenDialog(_parentFrame) == JFileChooser.APPROVE_OPTION)
{
_langFileBox.setText(chooser.getSelectedFile().getAbsolutePath());
}
}
/**
* Show message to remind about saving settings and restarting
*/
private void showEndMessage()
{
final String messageKey = Config.getConfigBoolean(Config.KEY_AUTOSAVE_SETTINGS)?
"dialog.setlanguage.endmessagewithautosave":"dialog.setlanguage.endmessage";
JOptionPane.showMessageDialog(_parentFrame,
I18nManager.getText(messageKey),
I18nManager.getText(getNameKey()), JOptionPane.INFORMATION_MESSAGE);
}
}
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