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  * @version 1.0
  34  */
  35 public class LanguageEditorPreferencePage extends CdmPreferencePage {
  36
  37     private CCombo combo;
  38     PreferencesUtil preferencesUtil = new PreferencesUtil();
  39     private boolean isSelectionChanged = false;
  40     private int initalSelectionIndex;
  41
  42         @Override
  43         protected Control createContents(Composite parent) {
  44                 Composite container = new Composite(parent, SWT.NULL);
  45                 final GridLayout gridLayout = new GridLayout();
  46                 container.setLayout(gridLayout);
  47                 createEditorDefaultLanguage(container);
  48                 return container;
  49         }
  50
  51         /**
  52      * @param container
  53      */
  54     private void createEditorDefaultLanguage(Composite container) {
  55         // TODO Auto-generated method stub
  56         final Label description = new Label(container, SWT.NONE);
  57         description.setText(Messages.LanguageEditorPreferencePage_RestartRequired);
  58
  59         final Label label = new Label(container, SWT.NONE);
  60         label.setText(Messages.LanguageEditorPreferencePage_ChooseDefaultLanguage);
  61
  62         GridData oneLine = new GridData();
  63         oneLine.grabExcessHorizontalSpace = true;
  64         oneLine.horizontalAlignment = GridData.FILL;
  65
  66         combo = new CCombo(container, SWT.NONE);
  67         combo.setLayoutData(oneLine);
  68
  69         combo.add(Language.GERMAN.getLabel(), 0);
  70         combo.add(Language.ENGLISH.getLabel(), 1);
  71         restoreSavedSelection();
  72
  73         combo.addSelectionListener(new SelectionListener() {
  74
  75             @Override
  76             public void widgetSelected(SelectionEvent e) {
  77                 setApply(true);
  78 //                try {
  79 //                    preferencesUtil.writePropertyToConfigFile(combo.getSelectionIndex());
  80                     if(initalSelectionIndex != combo.getSelectionIndex()) {
  81                         isSelectionChanged = true;
  82                     }else{
  83                         isSelectionChanged = false;
  84                     }
  85 //                } catch (IOException e1) {
  86 //                    MessagingUtils.messageDialog("Failed to write Config.ini", LanguageEditorPreferencePage.class,
  87 //                            "Language switch failed, because could not write to Folder. No writing permissions!", null);
  88 //                }
  89             }
  90
  91             @Override
  92             public void widgetDefaultSelected(SelectionEvent e) {
  93                 // TODO Auto-generated method stub
  94
  95             }
  96         });
  97     }
  98
  99     /**
 100      * TODO: This method is not taking advantages of the enum field yet
 101      */
 102     private void restoreSavedSelection() {
 103         String rememberedValue = PreferencesUtil.getStringValue(IPreferenceKeys.DEFAULT_LANGUAGE_EDITOR);
 104         if(StringUtils.isNotEmpty(rememberedValue)&& StringUtils.isNotBlank(rememberedValue)){
 105             if(rememberedValue.equalsIgnoreCase("en")){ //$NON-NLS-1$
 106                 initalSelectionIndex = 1;
 107                 combo.select(1);
 108             }else if(rememberedValue.equalsIgnoreCase("de")){ //$NON-NLS-1$
 109                 initalSelectionIndex = 0;
 110                 combo.select(0);
 111             }
 112         }else{
 113             Locale locale = Locale.getDefault();
 114             if(locale.getLanguage().equals(new Locale("de").getLanguage())){
 115                 initalSelectionIndex = 0;
 116                 combo.select(0);
 117             }else if(locale.getLanguage().equals(new Locale("en").getLanguage())){
 118                 initalSelectionIndex = 1;
 119                 combo.select(1);
 120             }
 121         }
 122     }
 123
 124     private enum Language{
 125
 126         GERMAN("Deutsch"), ENGLISH("English"); //$NON-NLS-1$ //$NON-NLS-2$
 127         private final String label;
 128         private Language(String label){
 129             this.label = label;
 130         }
 131
 132         /**
 133          * @return the label
 134          */
 135         public String getLabel() {
 136             return label;
 137         }
 138     }
 139
 140         @Override
 141         public boolean performOk() {
 142         try {
 143             if(isSelectionChanged){
 144                 preferencesUtil.writePropertyToConfigFile(combo.getSelectionIndex());
 145                 boolean result = MessageDialog.openConfirm(getShell(), Messages.LanguageEditorPreferencePage_PleaseRestart, Messages.LanguageEditorPreferencePage_EditorHasToRestart);
 146                 if(result){
 147                     //Press Ok
 148                     PlatformUI.getWorkbench().restart();
 149                 }
 150             }
 151         } catch (IOException e) {
 152             e.printStackTrace();
 153         }
 154                 return super.performOk();
 155         }
 156
 157 }