eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/preference/LanguageEditorPreferencePage.java

   1 /**
   2 * Copyright (C) 2007 EDIT
   3 * European Distributed Institute of Taxonomy
   4 * http://www.e-taxonomy.eu
   5 *
   6 * The contents of this file are subject to the Mozilla Public License Version 1.1
   7 * See LICENSE.TXT at the top of this package for the full license terms.
   8 */
   9 package eu.etaxonomy.taxeditor.preference;
  10
  11 import java.io.IOException;
  12 import java.util.Locale;
  13
  14 import org.apache.commons.lang3.StringUtils;
  15 import org.eclipse.jface.dialogs.MessageDialog;
  16 import org.eclipse.swt.SWT;
  17 import org.eclipse.swt.custom.CCombo;
  18 import org.eclipse.swt.events.SelectionEvent;
  19 import org.eclipse.swt.events.SelectionListener;
  20 import org.eclipse.swt.layout.GridData;
  21 import org.eclipse.swt.layout.GridLayout;
  22 import org.eclipse.swt.widgets.Composite;
  23 import org.eclipse.swt.widgets.Control;
  24 import org.eclipse.swt.widgets.Label;
  25 import org.eclipse.ui.PlatformUI;
  26
  27 import eu.etaxonomy.taxeditor.l10n.Messages;
  28 import eu.etaxonomy.taxeditor.preference.menu.CdmPreferencePage;
  29
  30 /**
  31  * @author n.hoffmann
  32  * @created Dec 3, 2010
  33  */
  34 public class LanguageEditorPreferencePage extends CdmPreferencePage {
  35
  36     private CCombo combo;
  37     PreferencesUtil preferencesUtil = new PreferencesUtil();
  38     private boolean isSelectionChanged = false;
  39     private int initalSelectionIndex;
  40
  41         @Override
  42         protected Control createContents(Composite parent) {
  43                 Composite container = new Composite(parent, SWT.NULL);
  44                 final GridLayout gridLayout = new GridLayout();
  45                 container.setLayout(gridLayout);
  46                 createEditorDefaultLanguage(container);
  47                 return container;
  48         }
  49
  50         /**
  51      * @param container
  52      */
  53     private void createEditorDefaultLanguage(Composite container) {
  54         // TODO Auto-generated method stub
  55         final Label description = new Label(container, SWT.NONE);
  56         description.setText(Messages.LanguageEditorPreferencePage_RestartRequired);
  57
  58         final Label label = new Label(container, SWT.NONE);
  59         label.setText(Messages.LanguageEditorPreferencePage_ChooseDefaultLanguage);
  60
  61         GridData oneLine = new GridData();
  62         oneLine.grabExcessHorizontalSpace = true;
  63         oneLine.horizontalAlignment = GridData.FILL;
  64
  65         combo = new CCombo(container, SWT.NONE);
  66         combo.setLayoutData(oneLine);
  67
  68         combo.add(Language.GERMAN.getLabel(), 0);
  69         combo.add(Language.ENGLISH.getLabel(), 1);
  70         restoreSavedSelection();
  71
  72         combo.addSelectionListener(new SelectionListener() {
  73
  74             @Override
  75             public void widgetSelected(SelectionEvent e) {
  76                 setApply(true);
  77 //                try {
  78 //                    preferencesUtil.writePropertyToConfigFile(combo.getSelectionIndex());
  79                     if(initalSelectionIndex != combo.getSelectionIndex()) {
  80                         isSelectionChanged = true;
  81                     }else{
  82                         isSelectionChanged = false;
  83                     }
  84 //                } catch (IOException e1) {
  85 //                    MessagingUtils.messageDialog("Failed to write Config.ini", LanguageEditorPreferencePage.class,
  86 //                            "Language switch failed, because could not write to Folder. No writing permissions!", null);
  87 //                }
  88             }
  89
  90             @Override
  91             public void widgetDefaultSelected(SelectionEvent e) {
  92                 // TODO Auto-generated method stub
  93
  94             }
  95         });
  96     }
  97
  98     /**
  99      * TODO: This method is not taking advantages of the enum field yet
 100      */
 101     private void restoreSavedSelection() {
 102         String rememberedValue = PreferencesUtil.getStringValue(IPreferenceKeys.DEFAULT_LANGUAGE_EDITOR);
 103         if(StringUtils.isNotEmpty(rememberedValue)&& StringUtils.isNotBlank(rememberedValue)){
 104             if(rememberedValue.equalsIgnoreCase("en")){ //$NON-NLS-1$
 105                 initalSelectionIndex = 1;
 106                 combo.select(1);
 107             }else if(rememberedValue.equalsIgnoreCase("de")){ //$NON-NLS-1$
 108                 initalSelectionIndex = 0;
 109                 combo.select(0);
 110             }
 111         }else{
 112             Locale locale = Locale.getDefault();
 113             if(locale.getLanguage().equals(new Locale("de").getLanguage())){
 114                 initalSelectionIndex = 0;
 115                 combo.select(0);
 116             }else if(locale.getLanguage().equals(new Locale("en").getLanguage())){
 117                 initalSelectionIndex = 1;
 118                 combo.select(1);
 119             }
 120         }
 121     }
 122
 123     private enum Language{
 124
 125         GERMAN("Deutsch"), ENGLISH("English"); //$NON-NLS-1$ //$NON-NLS-2$
 126         private final String label;
 127         private Language(String label){
 128             this.label = label;
 129         }
 130
 131         /**
 132          * @return the label
 133          */
 134         public String getLabel() {
 135             return label;
 136         }
 137     }
 138
 139         @Override
 140         public boolean performOk() {
 141         try {
 142             if(isSelectionChanged){
 143                 preferencesUtil.writePropertyToConfigFile(combo.getSelectionIndex());
 144                 boolean result = MessageDialog.openConfirm(getShell(), Messages.LanguageEditorPreferencePage_PleaseRestart, Messages.LanguageEditorPreferencePage_EditorHasToRestart);
 145                 if(result){
 146                     //Press Ok
 147                     PlatformUI.getWorkbench().restart();
 148                 }
 149             }
 150         } catch (IOException e) {
 151             e.printStackTrace();
 152         }
 153                 return super.performOk();
 154         }
 155 }