JLanguagesPanel


1   /*  
2       =========================================================================
3       Package preferences - Preferences management panels.
4   
5       This module is developed and maintained by PlanetaMessenger.org. 
6       Specs, New and updated versions can be found in 
7       http://www.planetamessenger.org
8       If you want contact the Team please send a email to Project Manager
9       Leidson Campos Alves Ferreira at leidson@planetamessenger.org
10  
11      Copyright (C) since 2001 by PlanetaMessenger.org
12  
13      This program is free software; you can redistribute it and/or modify
14      it under the terms of the GNU General Public License as published by
15      the Free Software Foundation; either version 2 of the License, or
16      (at your option) any later version.
17  
18      This program is distributed in the hope that it will be useful,
19      but WITHOUT ANY WARRANTY; without even the implied warranty of
20      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
21      GNU General Public License for more details.
22  
23      You should have received a copy of the GNU General Public License
24      along with this program; if not, write to the Free Software
25      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26  
27      =========================================================================
28  */
29  /**
30   *
31   * $Id: JLanguagesPanel.java,v 1.11 2007/02/23 21:54:23 popolony2k Exp $
32   * $Author: popolony2k $
33   * $Name:  $
34   * $Revision: 1.11 $
35   * $State: Exp $
36   *
37   */
38  
39  package org.planetamessenger.mos.forms.preferences;
40  
41  import java.awt.*;
42  import java.awt.event.*;
43  import javax.swing.*;
44  import javax.swing.tree.*;
45  import javax.swing.event.*;
46  import javax.swing.text.*;
47  import javax.swing.text.html.*;
48  import java.util.*;
49  import com.jgoodies.forms.builder.*;
50  import com.jgoodies.forms.layout.*;
51  import com.jgoodies.forms.debug.*;
52  import org.planetamessenger.mos.engine.*;
53  import org.planetamessenger.plugin.*;
54  
55  
56  public class JLanguagesPanel extends JPluginPreferencesContainer implements TreeSelectionListener {
57    
58    private PanelBuilder               builder           = null;
59    private PanelBuilder               builder2          = null;
60    private FormLayout                 layout            = null;
61    private FormLayout                 layout2           = null;
62    private JSplitPane                 splitPane         = null;
63    private JScrollPane                languagesTreePane = null;
64    private JScrollPane                languageInfoPane  = null;
65    private JTree                      languagesTree     = null;
66    private JTextPane                  languageInfo      = null;
67    private JButton                    selectLanguageBtn = null;
68    private JPanel                     btnsPanel         = null;
69    private JLanguageTreeCellRenderer  renderer          = null;
70    private DefaultTreeModel           treeModel         = null;
71    private DefaultMutableTreeNode     rootNode          = null;
72    private DefaultMutableTreeNode     selectedNode      = null;
73  
74    
75    /**
76     * Constructor. Initialize all class data.
77     */
78    public JLanguagesPanel() {
79  
80      super();
81  
82      GridBagConstraints        btnsConst     = new GridBagConstraints();
83      CellConstraints           cellConst     = new CellConstraints();
84      String                      strRootName   = "AVAILABLE_LANGUAGES";
85      JLanguageField            rootNodeField = new JLanguageField();
86      
87      rootNodeField.setLanguageId( null );
88      rootNodeField.setLanguage( strRootName );
89      rootNodeField.setObject( new Boolean  ( false ) );
90  
91      layout            = new FormLayout( "fill:260dlu:grow", "fill:310dlu" );
92      layout2           = new FormLayout( "fill:90dlu:grow, fill:10dlu:grow", "fill:100dlu:grow" );
93      builder           = new PanelBuilder( layout );
94      builder2          = new PanelBuilder( layout2 );
95      //builder2          = new DefaultFormBuilder( layout2, new FormDebugPanel() );
96      //builder           = new DefaultFormBuilder( layout, new FormDebugPanel() );
97      languagesTree     = new JTree();
98      languagesTreePane = new JScrollPane( languagesTree );
99      languageInfo      = new JTextPane();
100     languageInfoPane  = new JScrollPane( languageInfo );
101     splitPane         = new JSplitPane( JSplitPane.VERTICAL_SPLIT, builder2.getPanel(), languageInfoPane );
102     selectLanguageBtn = new JButton();
103     btnsPanel         = new JPanel();
104 
105     builder.setDefaultDialogBorder();
106     builder2.setDefaultDialogBorder();
107 
108     rootNode  = new DefaultMutableTreeNode( rootNodeField );
109     treeModel = new DefaultTreeModel( rootNode );
110     languagesTree.setModel( treeModel );
111 
112     renderer = new JLanguageTreeCellRenderer();
113     renderer.setLeafIcon( null );
114     renderer.setOpenIcon( null );
115     renderer.setClosedIcon( null );
116 
117     selectLanguageBtn.setFont( JSystemFonts.FONT );
118     selectLanguageBtn.setPreferredSize( new Dimension( JResources.DEFAULT_BUTTON_WIDTH, JResources.DEFAULT_BUTTON_HEIGHT ) );
119     selectLanguageBtn.setMinimumSize( selectLanguageBtn.getPreferredSize() );
120     selectLanguageBtn.setIcon( JSharedObjects.getResources().getIcon( JResources.OK_BUTTON_ICON  ) );
121     selectLanguageBtn.setEnabled( false );
122     selectLanguageBtn.addActionListener( new ActionListener()  {
123                                    public void actionPerformed( ActionEvent evt )  {
124                                      selectLanguage();
125                                    }
126                                  } );
127     
128 
129     languagesTree.addTreeSelectionListener( this );
130     languagesTree.setCellRenderer( renderer );
131     languagesTree.putClientProperty( "JTree.lineStyle", "Angled" );
132     languagesTree.getSelectionModel().setSelectionMode( TreeSelectionModel.SINGLE_TREE_SELECTION );
133 
134     languageInfo.setFont( JSystemFonts.FONT );
135     languageInfo.setEditable( false );
136     languageInfo.setEditorKit( JTextPane.createEditorKitForContentType( "text/html" ) ); 
137     
138     // Buttons panel setup
139     btnsPanel.setLayout( new GridBagLayout() );
140     
141     btnsConst.gridx      = 0;
142     btnsConst.gridy      = 0;
143     btnsConst.gridwidth  = GridBagConstraints.REMAINDER;
144     btnsConst.gridheight = 1;
145     btnsConst.weightx    = 0.0001;
146     btnsConst.weighty    = 0.0001;
147     btnsConst.insets     = new Insets( 3, 3, 3, 3 );
148     btnsConst.fill       = GridBagConstraints.HORIZONTAL;
149     btnsConst.anchor     = GridBagConstraints.NORTH;
150     btnsPanel.add( selectLanguageBtn, btnsConst );
151 
152     splitPane.setDividerLocation( splitPane.getMinimumDividerLocation() );
153 
154     builder2.add( languagesTreePane, cellConst.xy( 1, 1 ) );
155     builder2.add( btnsPanel, cellConst.xy( 2, 1 ) );
156     builder.add( splitPane, cellConst.xy( 1, 1 ) );
157   }
158   
159   /**
160    * Initialize the component's panel to show on
161    *  preferences window.
162    */
163   public void onShow()  {
164 
165     if( getComponentCount() == 0 )
166       add( builder.getPanel() );
167     
168     fillLanguages();
169   }
170   
171   /**
172    * Called when Apply/Ok button is triggered.
173    * Store the new configuration to PM database.
174    */
175   public boolean onApply()  {
176     
177     try  {
178       JLanguageField    item = ( JLanguageField ) selectedNode.getUserObject();
179 
180       if( !item.getLanguageId().equals( JSharedObjects.getLanguageManager().getCurrentLanguage() ) )  {
181         JSharedObjects.getLanguageManager().loadLanguage( item.getLanguageId() );
182         JSharedObjects.getLanguageManager().updateProfile( JSharedObjects.getProfileManager().getProfileId(), item.getLanguageId() );
183         fillLanguages();
184       }
185     }  catch( Exception   e )  {
186       System.err.println( "JLanguagesPanel.onApply() - " + e );
187       return false;
188     }
189 
190     return true;
191   }
192   
193   /**
194    * Called when cancel button is triggered.
195    */
196   public void onCancel()  {
197 
198   }
199   
200   /**
201    * Called by plugin manager when LAF is changed
202    * by user;
203    */
204   public void onLookAndFeelChanged()  {
205 
206     SwingUtilities.updateComponentTreeUI( this );
207   }
208   
209   /**
210    * Called by plugin manager when LAF is changed
211    * by user;
212    */
213   public void onLanguageChanged( String   strCountryCode )  {
214 
215     selectLanguageBtn.setText( JSharedObjects.getLanguageManager().getStringEx( "SELECT" ) );
216   }
217   
218   /**
219    * Fill available languages to Languages tree control.
220    */
221   private void fillLanguages()  {
222     
223     ArrayList<JLanguageField>     vAvailableLanguages = JSharedObjects.getLanguageManager().getLanguageList();
224     int                           nMaxItems           = vAvailableLanguages.size();
225     DefaultMutableTreeNode        newNode             = null;
226     TreePath                      path                = null;
227 
228 
229     rootNode.removeAllChildren();
230     languagesTree.expandRow( 0 );
231 
232     for( int nCount = 0; nCount < nMaxItems; nCount++ )  {
233 
234       JLanguageField  langField   = vAvailableLanguages.get( nCount );
235       JLanguageField  itemField   = ( JLanguageField ) langField.clone();
236       boolean         bIsSelected = JSharedObjects.getLanguageManager().getCurrentLanguage().equals( langField.getLanguageId() );
237 
238 
239       itemField.setObject( new Boolean  ( bIsSelected ) );
240       newNode = new DefaultMutableTreeNode( itemField );
241       rootNode.add( newNode );
242 
243       if( bIsSelected )  {
244         path         = languagesTree.getPathForRow( 0 ).pathByAddingChild( newNode );
245         selectedNode = newNode;
246       }
247     }
248     
249     treeModel.reload();
250     
251     if( path != null )
252       languagesTree.getSelectionModel().setSelectionPath( path );
253   }
254   
255   // TreeSelectionListener implementation
256   /**
257    * Implements the valueChanged of TreeSelectionListener
258    * interface.<br>
259    * Update the Plugin Info panel depending on selection;
260    * item selected;<br>
261    * @param See Jdk docs;
262    */
263    public void valueChanged( TreeSelectionEvent treeSelectionEvent ) {
264 
265      TreePath                path       = treeSelectionEvent.getPath();
266      DefaultMutableTreeNode  node       = ( DefaultMutableTreeNode ) path.getLastPathComponent();
267      JLanguageField          item       = ( JLanguageField ) node.getUserObject();
268 
269      languageInfo.setText( "" );
270 
271      if( item.getLanguageId() != null )  {
272        HTMLDocument      doc         = ( HTMLDocument ) languageInfo.getDocument();
273        HTMLEditorKit     html        = ( HTMLEditorKit ) languageInfo.getEditorKit();
274        boolean           bIsSelected = ( ( Boolean   ) item.getObject() ).booleanValue();
275 
276 
277        selectLanguageBtn.setEnabled( !bIsSelected );
278 
279        try  {
280          html.insertHTML( doc, doc.getLength(), "<strong>" + item.getLanguage() + "</strong><p>" , 0, 0, null );
281          html.insertHTML( doc, doc.getLength(), "<b>" + JSharedObjects.getLanguageManager().getStringEx( "VERSION_FULL" ) + " : </b>" + item.getVersion(), 0, 0, null );
282          html.insertHTML( doc, doc.getLength(), "<b>" + JSharedObjects.getLanguageManager().getStringEx( "OWNER" ) + " : </b>" + item.getOwner(), 0, 0, null );
283          html.insertHTML( doc, doc.getLength(), "<b>" + JSharedObjects.getLanguageManager().getStringEx( "LICENSE" ) + " : </b>" + item.getLicense(), 0, 0, null );
284          html.insertHTML( doc, doc.getLength(), "<b>" + JSharedObjects.getLanguageManager().getStringEx( "HOME_PAGE" ) + " : </b>" + item.getHomePage(), 0, 0, null );
285          html.insertHTML( doc, doc.getLength(), "<b>" + JSharedObjects.getLanguageManager().getStringEx( "DESCRIPTION" ) + " : </b>" + item.getDescription(), 0, 0, null );
286        }  catch( BadLocationException e )  {
287          System.err.println( "JLanguagesPanel.valueChanged() - " + e );
288        }  catch( java.io.IOException   ioe )  {
289          System.err.println( "JLanguagesPanel.valueChanged() - " + ioe );
290        }
291      }
292      else
293        selectLanguageBtn.setEnabled( false );
294   }
295    
296   /**
297    * Change current language to selected language
298    * by user.
299    */
300   private void selectLanguage()  {
301 
302     TreePath   path = languagesTree.getSelectionPath();
303 
304     if( path != null )  {
305       DefaultMutableTreeNode   node    = ( DefaultMutableTreeNode ) path.getLastPathComponent();
306       JLanguageField           item    = ( JLanguageField ) node.getUserObject();
307       JLanguageField           oldItem = ( JLanguageField ) selectedNode.getUserObject();
308       
309       item.setObject( new Boolean  ( true ) );
310       oldItem.setObject( new Boolean  ( false ) );
311       selectedNode = node;
312       treeModel.reload();
313       JSharedObjects.getKernelManager().getPreferencesManager().EnableApplyPreferencesManager( true );
314     }
315   }
316 
317 
318   /**
319    *=========================================================================
320    * JLanguageTreeCellRenderer class implementation
321    * This is a new cell renderer implementation for languages tree component.
322    *=========================================================================
323    */
324   private class JLanguageTreeCellRenderer  extends DefaultTreeCellRenderer {
325 
326     /**
327      * Overrides the Cell renderer method of this JTreeCellRenderer.<br>
328      * Show the check icon (disable option) when plugin is selected to be installed;
329      * See JDK API for the parameters.
330      */
331     public java.awt.Component   getTreeCellRendererComponent( javax.swing.JTree   tree, java.lang.Object   objValue, boolean bSelected, boolean bExpanded, boolean bIsLeaf, int nRow, boolean bHasFocus ) {
332 
333       super.getTreeCellRendererComponent( tree, objValue, bSelected, bExpanded, bIsLeaf, nRow, bHasFocus );
334       
335       try  {
336 
337         DefaultMutableTreeNode   node        = ( DefaultMutableTreeNode ) objValue;
338         JLanguageField           item        = ( JLanguageField ) node.getUserObject();
339         Boolean                    bIsSelected = ( Boolean   ) item.getObject();
340 
341       
342         // Only root item has Keyname as null
343         if( item.getLanguageId() == null )  {
344           setText( JSharedObjects.getLanguageManager().getStringEx( item.getLanguage() ) );
345           return this;
346         }
347         
348         setText( item.getLanguage() );
349 
350         // Add/remove the checked icon
351         if( bIsSelected )
352           setIcon( JSharedObjects.getResources().getIcon( JResources.INSTALL_PLUGIN_ICON ) );
353         else
354           setIcon( JSharedObjects.getResources().getIcon( JResources.UNINSTALL_PLUGIN_ICON ) );
355       } catch( Exception   e )  {
356         System.err.println( "JLanguagesPanel.JLanguageTreeCellRenderer.getTreeCellRendererComponent() - Invalid item object. Ignoring event" );
357       }
358 
359       return this;
360     }
361   }  // JLanguageTreeCellRenderer Class
362 }
363 
364 // JLanguagesPanel class
365
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