]> gitweb.fperrin.net Git - GpsPrune.git/blobdiff - src/tim/prune/function/settings/SetLanguage.java
Moved source into separate src directory due to popular request
[GpsPrune.git] / src / tim / prune / function / settings / SetLanguage.java
diff --git a/src/tim/prune/function/settings/SetLanguage.java b/src/tim/prune/function/settings/SetLanguage.java
new file mode 100644 (file)
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+package tim.prune.function.settings;
+
+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<String> _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 = {"afrikaans", "\u010de\u0161tina", "deutsch", "english", "american english",
+               "espa\u00F1ol", "fran\u00E7ais", "italiano", "magyar", "nederlands", "polski", "portugu\u00EAs", "rom\u00E2n\u0103",
+               "suomi", "\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",
+               "\u0443\u043a\u0440\u0430\u0457\u043d\u0441\u044c\u043a\u0430 \u043c\u043e\u0432\u0430 (ukrainian)"
+       };
+       /** Associated language codes (must be in same order as names!) */
+       private static final String[] LANGUAGE_CODES = {"af", "cz", "de", "en", "en_us", "es", "fr", "it", "hu",
+               "nl", "pl", "pt", "ro", "fi", "ru", "zh", "ja", "ko", "de_ch", "uk"
+       };
+
+
+       /**
+        * 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<String>(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);
+       }
+}