Changeset 12278

Timestamp:

2006-07-24T11:26:58+12:00 (18 years ago)

Author:

kjdon

Message:

tidied this up. now can have a list of languages per partition.

File:

• trunk/gli/src/org/greenstone/gatherer/cdm/LanguageManager.java (modified) (22 diffs)

trunk/gli/src/org/greenstone/gatherer/cdm/LanguageManager.java

@@ -33 +33 @@
 import java.util.*;
 import javax.swing.*;
+import javax.swing.border.*;
 import javax.swing.event.*;
 import org.greenstone.gatherer.Configuration;
@@ -39 +40 @@
 import org.greenstone.gatherer.Gatherer;
 import org.greenstone.gatherer.gui.GLIButton;
+import org.greenstone.gatherer.util.CheckList;
+import org.greenstone.gatherer.util.CheckListEntry;
 import org.greenstone.gatherer.util.JarTools;
 import org.greenstone.gatherer.util.XMLTools;
@@ -77 +80 @@
     // Load a series of code->language mappings into known_languages, by reading from the 'languages.xml' file, which is essentially a subset of the ISO 639 Standard.
     known_languages = new LinkedHashMap();
-    /*
-      try {
-        File in_file = new File("languages.dat");
-        FileReader in_reader = new FileReader(in_file);
-        BufferedReader in = new BufferedReader(in_reader);
-        String entry = null;
-        while((entry = in.readLine()) != null) {
-        if(!entry.startsWith("#")) {
-            StringTokenizer tokenizer = new StringTokenizer(entry);
-            if(tokenizer.countTokens() >= 2) {
-            String name = tokenizer.nextToken();
-            String code = tokenizer.nextToken().toLowerCase();
-            known_languages.put(code, name);
-            }
-        }
-        }
-        in.close();
-        in_reader.close();
-        in = null;
-        in_reader = null;
-        in_file = null;
-    }
-    catch (Exception error) {
-        error.printStackTrace();
-    }
-    */
     NodeList language_elements = LANGUAGES_DOCUMENT.getDocumentElement().getElementsByTagName(CollectionConfiguration.LANGUAGE_ELEMENT);
     for(int i = 0; i < language_elements.getLength(); i++) {
@@ -122 +99 @@
     private void addLanguage(Language language) {
     if(!contains(language)) {
-        Element element = language.getElement();
-        append(language);
+        // need to add a pseudo metadata
+        CollectionMeta metadatum = new CollectionMeta(CollectionConfiguration.STOP_CHARACTER + language.getCode());
+        metadatum.setValue(language.getName());
+        CollectionDesignManager.collectionmeta_manager.addMetadatum(metadatum);
+        add(getSize(), language);
         Gatherer.c_man.configurationChanged();
     }
@@ -148 +128 @@
     return controls;
     }
-
-    /** Method to retrieve the default language code.
-     * @return A <strong>Language</strong> containing a two letter code.
-     */
-    /* private Language getDefaultLanguage() {
-    // If no default is set...
-    if(default_language != null && default_language.isAssigned()) {
-        return default_language;
-    }
-    return null;
-    } */
-
+    
     /** Method to retrieve a certain language object by its code.
      * @param code The two letter code of a language, as a <strong>String</strong>.
@@ -239 +208 @@
     private void removeLanguage(Language language) {
     remove(language);
+    // Remove any collection metadata for this language
+    CollectionDesignManager.collectionmeta_manager.removeMetadata(CollectionConfiguration.STOP_CHARACTER + language.getCode());
     if(default_language != null && default_language.equals(language)) {
-        default_language = null;
+        setDefault(null);
     }
     Gatherer.c_man.configurationChanged();
     }
 
+    private void replaceLanguage(Language old_language, Language new_language) {
+    // Remove old lang collection meta
+    CollectionDesignManager.collectionmeta_manager.removeMetadata(CollectionConfiguration.STOP_CHARACTER + old_language.getCode());
+    // Add new one
+    CollectionMeta metadatum = new CollectionMeta(CollectionConfiguration.STOP_CHARACTER + new_language.getCode());
+    metadatum.setValue(new_language.getName());
+    CollectionDesignManager.collectionmeta_manager.addMetadatum(metadatum);
+    if(default_language != null && default_language.equals(old_language)) {
+        setDefault(new_language);
+    }
+
+    // get the position of the old one
+    int position = indexOf(old_language);
+    remove(old_language);
+    add(position, new_language);
+
+    // Schedule the collection for saving
+    Gatherer.c_man.configurationChanged();
+
+    }
     /** Method to set the default language.
      * @param language The <strong>Language</strong> to use as a default, or <i>null</i> for no default.
@@ -280 +271 @@
     extends JPanel 
     implements Control {
+    /** The list of available languages */
+    private CheckList language_list = null;
     /** The button to add a new language support. */
     private JButton add_button = null;
+    /** The button to replace a language support. */
+    private JButton replace_button = null;
     /** The button to remove a supported language. */
     private JButton remove_button = null;
@@ -291 +286 @@
     private JButton set_default_button = null;
     /** A combobox listing the available supported languages. */
-    private JComboBox language_combobox = null;
+    //private JComboBox language_combobox = null;
     /** A list of currently supported languages. */
     private JList selected_languages_list = null;
@@ -317 +312 @@
         JLabel selector_label = new JLabel(Dictionary.get("CDM.LanguageManager.Selector"));
         
-        language_combobox = new JComboBox(getLanguageCodes().toArray());
-        language_combobox.setPreferredSize(COMPONENT_SIZE);
-        language_combobox.setBackground(Configuration.getColor("coloring.collection_tree_background", false));
-        language_combobox.setRenderer(new LanguageListCellRenderer());
-        language_combobox.setToolTipText(Dictionary.get("CDM.LanguageManager.Selector_Tooltip"));
-        
+        language_list = new CheckList(false);
+        language_list.setListData(getLanguageCodes());
+        language_list.setToolTipText(Dictionary.get("CDM.LanguageManager.Selector_Tooltip"));
+        language_list.setCellRenderer(new LanguageCheckListCellRenderer());
+                
         JPanel movement_pane = new JPanel();
         move_up_button = new GLIButton(Dictionary.get("CDM.Move.Move_Up"), JarTools.getImage("arrow-up.gif"), Dictionary.get("CDM.Move.Move_Up_Tooltip"));
@@ -335 +329 @@
         JPanel button_panel = new JPanel();
 
-        add_button = new GLIButton(Dictionary.get("CDM.LanguageManager.Add"), Dictionary.get("CDM.LanguageManager.Add_Tooltip"));
-        
-        if (getLanguage((String)language_combobox.getItemAt(0))==null) {
-        add_button.setEnabled(true);
-        } else {
-        add_button.setEnabled(false);
-        }
-        remove_button = new GLIButton(Dictionary.get("CDM.LanguageManager.Remove"), Dictionary.get("CDM.LanguageManager.Remove_Tooltip"));
+        add_button = new GLIButton(Dictionary.get("CDM.SubcollectionIndexManager.Add_Subindex"), Dictionary.get("CDM.LanguageManager.Add_Tooltip"));
+        add_button.setEnabled(false);
+
+        replace_button = new GLIButton(Dictionary.get("CDM.SubcollectionIndexManager.Replace_Subindex"), Dictionary.get("CDM.LanguageManager.Replace_Tooltip"));
+        replace_button.setEnabled(false);
+        
+        remove_button = new GLIButton(Dictionary.get("CDM.SubcollectionIndexManager.Remove_Subindex"), Dictionary.get("CDM.LanguageManager.Remove_Tooltip"));
         remove_button.setEnabled(false);
         
@@ -354 +347 @@
         remove_button.addActionListener(new RemoveListener());
         remove_button.addActionListener(CollectionDesignManager.buildcol_change_listener);
-        language_combobox.addActionListener(new SelectorListener());
+        replace_button.addActionListener(new ReplaceListener());
+        replace_button.addActionListener(CollectionDesignManager.buildcol_change_listener);
+
+        language_list.addListSelectionListener(new LanguageListListener());
+        
         set_default_button.addActionListener(new SetDefaultListener());
         set_default_button.addActionListener(CollectionDesignManager.buildcol_change_listener);
@@ -360 +357 @@
 
         // Layout components
+        button_panel.setLayout(new GridLayout(1,3));
+        button_panel.add(add_button);
+        button_panel.add(replace_button);
+        button_panel.add(remove_button);
+
         movement_pane.setBorder(BorderFactory.createEmptyBorder(0,2,0,0));
         movement_pane.setLayout(new GridLayout(3,1));
@@ -369 +371 @@
         control_panel.setLayout(new BorderLayout());
         control_panel.add(selector_label, BorderLayout.WEST);
-        control_panel.add(language_combobox, BorderLayout.CENTER);
+        control_panel.add(new JScrollPane(language_list), BorderLayout.CENTER);
+        control_panel.add(button_panel, BorderLayout.SOUTH);
 
         center_panel.setLayout(new BorderLayout());
@@ -375 +378 @@
         center_panel.add(new JScrollPane(selected_languages_list), BorderLayout.CENTER);
         center_panel.add(movement_pane, BorderLayout.EAST);
-        center_panel.add(control_panel, BorderLayout.SOUTH);
-
-        button_panel.setLayout(new GridLayout(1,2));
-        button_panel.add(add_button);
-        button_panel.add(remove_button);
-//      button_panel.add(set_button);
-//      button_panel.add(clear_button);
-
-        //when we go to a multi list, remove inner_panel and empty_panel
-        JPanel empty_panel = new JPanel();
-        JPanel inner_panel = new JPanel();
-
-        inner_panel.setLayout(new BorderLayout());
-        inner_panel.add(center_panel, BorderLayout.CENTER);
-        inner_panel.add(button_panel, BorderLayout.SOUTH);
+
         setBorder(BorderFactory.createEmptyBorder(5,5,5,5));
         setLayout(new BorderLayout());
-        //add(center_panel, BorderLayout.CENTER);
-        //add(button_panel, BorderLayout.SOUTH);
-        add(inner_panel, BorderLayout.NORTH);
-        add(empty_panel, BorderLayout.CENTER);
+        add(center_panel, BorderLayout.NORTH);
+        add(control_panel, BorderLayout.CENTER);
     }
     
@@ -408 +395 @@
     }
 
+    
+    private void clearControls() {
+        selected_languages_list.clearSelection();
+        language_list.clearTicked();
+        add_button.setEnabled(false);
+        remove_button.setEnabled(false);
+        replace_button.setEnabled(false);
+        set_default_button.setEnabled(false);
+        move_down_button.setEnabled(false);
+        move_up_button.setEnabled(false);
+
+    }
+    
+    private void updateControlsWithSelectedLanguage()
+    {
+        Language selected_lang = (Language) selected_languages_list.getSelectedValue();
+        if (selected_lang == null) {
+        clearControls();
+        return;
+        }
+        
+        // Display the selected subcollection index's sources
+        language_list.clearTicked();
+        language_list.setTickedObjects(selected_lang.getCode().split(","));
+        
+    }
+
+    private void validateButtons() {
+        boolean add_enabled = false;
+        boolean replace_enabled = false;
+
+        if (!language_list.isNothingTicked()) {
+        // Create a dummy Langauge and see if its in the collection
+        ArrayList langs = language_list.getTicked();
+        StringBuffer code_str = new StringBuffer();
+        boolean first = true;
+        for (int i=0; i<langs.size(); i++) {
+            if (!first) {
+            code_str.append(",");
+            } else {
+            first = false;
+            }
+            code_str.append(langs.get(i));
+        }
+        String lang_str = code_str.toString();
+        
+        if (!model.contains(lang_str)) {
+            add_enabled = true;
+            if (!selected_languages_list.isSelectionEmpty()) {
+            replace_enabled = true;
+            }
+        }
+
+        }
+        add_button.setEnabled(add_enabled);
+        replace_button.setEnabled(replace_enabled);
+    }
+    
     /** Listens for actions apon the 'add' button in the LanguageManager controls, and if detected calls the add method of the manager with a newly created language. */
     private class AddListener
@@ -416 +461 @@
          */
         public void actionPerformed(ActionEvent event) {
-        String language_code = (String) language_combobox.getSelectedItem();
-        if(language_code != null) {
-            addLanguage(new Language(language_code));
-        }
-        // add some collectionmeta
-        String lang_name = getLanguageName(language_code);
-        CollectionMeta metadatum = new CollectionMeta("." + language_code);
-        metadatum.setValue(lang_name);
-        CollectionDesignManager.collectionmeta_manager.addMetadatum(metadatum);
-
-        add_button.setEnabled(false);
+        if (!language_list.isNothingTicked()) {
+            ArrayList langs = language_list.getTicked();
+            addLanguage(new Language(language_list.getTicked()));
+            clearControls();
+        }
         }
     }
@@ -440 +479 @@
         Language delete_me = (Language)selected_languages_list.getSelectedValue();
         if(delete_me != null) {
-            // Remove any current metadata for this language
-            CollectionDesignManager.collectionmeta_manager.removeMetadata("." + delete_me.getCode());
             removeLanguage(delete_me);
-            if(default_language != null && default_language.equals(delete_me)) {
-            setDefault(null);
-            //clear_button.setEnabled(false);
-            //default_language_field.setText("");
-            }
-        }
-        remove_button.setEnabled(false);
-        }
-    }
-
-    /** Listens for selections within the combobox on the LanguageManager controls, and if a change is detected enables, or disables, controls appropriately. */
-    private class SelectorListener
+        }
+        }
+    }
+
+    private class ReplaceListener
         implements ActionListener {
-        /** Enable or disable controls depeding on selection.
-         * @param event An <strong>ActionEvent</strong>.
-         */
+        
         public void actionPerformed(ActionEvent event) {
-        String language_code = (String) language_combobox.getSelectedItem();
-        if(language_code != null && getLanguage(language_code) == null) {
-            add_button.setEnabled(true);
-        }
-        else {
-            add_button.setEnabled(false);
-        }
-        }
-    }
-
+        if (selected_languages_list.isSelectionEmpty() || language_list.isNothingTicked()) {
+            // This should never happen, but just in case...
+            replace_button.setEnabled(false);
+            return;
+        }
+        Language old_language = (Language) selected_languages_list.getSelectedValue();
+        Language new_language = new Language(language_list.getTicked());
+        replaceLanguage(old_language, new_language);
+        
+        }
+    }
+    
+    private class LanguageListListener
+        implements ListSelectionListener {
+
+        public void valueChanged(ListSelectionEvent event) {
+        if (event.getValueIsAdjusting()) {
+            return;
+        }
+        validateButtons();
+        }
+    }
+    
     /** Listens for actions apon the 'set default' button in the LanguageManager controls, and if detected calls the <i>setDefault()</i> method of the manager with the language selected for default. */
     private class SetDefaultListener
@@ -481 +522 @@
         if(selected_language != null) {
             setDefault(selected_language);
-            //clear_button.setEnabled(true);
             // This should cause a repaint of just the desired row
             selected_languages_list.setSelectedValue(selected_language, true);
@@ -523 +563 @@
         }
         if(selected_languages_list.isSelectionEmpty()) {
-            remove_button.setEnabled(false);
-            set_default_button.setEnabled(false);
-            move_down_button.setEnabled(false);
-            move_up_button.setEnabled(false);
+            clearControls();
             return;
         }
@@ -534 +571 @@
         Language selected_lang = (Language)selected_languages_list.getSelectedValue();
         remove_button.setEnabled(true);
+        replace_button.setEnabled(false);
+        add_button.setEnabled(false);
         set_default_button.setEnabled(default_language == null || !default_language.equals(selected_lang));
         
@@ -548 +587 @@
             move_down_button.setEnabled(false);
         }
+        updateControlsWithSelectedLanguage();
         }
     }
@@ -564 +604 @@
     }
     }
+    
+    /** A custom list cell renderer for producing rows which contain clickable check boxes. */
+    private class LanguageCheckListCellRenderer 
+    implements ListCellRenderer
+    {
+    /** Return a component that has been configured to display the specified value. That component's paint method is then called to "render" the cell. If it is necessary to compute the dimensions of a list because the list cells do not have a fixed size, this method is called to generate a component on which getPreferredSize  can be invoked.
+     * @param list The </strong>JList</strong> we're painting.
+     * @param value The value returned by list.getModel().getElementAt(index), as an <strong>Object</strong>.
+     * @param index The cells index as an <i>int</i>.
+     * @param is_selected <i>true</i> if the specified cell was selected, <i>false</i> otherwise.
+     * @param cell_has_focus <i>true</i> if and only if the specified cell has the focus.
+     * @return A <strong>Component</strong> whose paint() method will render the specified value.
+     */
+    public Component getListCellRendererComponent(JList list, Object value, int index, boolean is_selected, boolean cell_has_focus) {
+        JCheckBox checkbox = (JCheckBox) value;
+        checkbox.setBackground(list.getBackground());
+        checkbox.setForeground(list.getForeground());
+        checkbox.setBorderPainted(false);
+        checkbox.setEnabled(list.isEnabled());
+        checkbox.setFont(list.getFont());
+        checkbox.setFocusPainted(false);
+        checkbox.setBorder((is_selected) ? UIManager.getBorder("List.focusCellHighlightBorder") : new EmptyBorder(1, 1, 1, 1));
+        
+        String code = (String)((CheckListEntry)list.getModel().getElementAt(index)).getObject();
+        checkbox.setText((String)known_languages.get(code));
+
+        return checkbox;
+    }
+    }
+
 }