eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/ui/translation/TranslationWizardPage.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2007 EDIT
   4 * European Distributed Institute of Taxonomy
   5 * http://www.e-taxonomy.eu
   6 *
   7 * The contents of this file are subject to the Mozilla Public License Version 1.1
   8 * See LICENSE.TXT at the top of this package for the full license terms.
   9 */
  10
  11 package eu.etaxonomy.taxeditor.ui.translation;
  12
  13 import java.util.ArrayList;
  14 import java.util.Arrays;
  15 import java.util.List;
  16 import java.util.Map;
  17 import java.util.Set;
  18
  19 import org.eclipse.core.runtime.Assert;
  20 import org.eclipse.jface.wizard.WizardPage;
  21 import org.eclipse.swt.SWT;
  22 import org.eclipse.swt.events.SelectionAdapter;
  23 import org.eclipse.swt.events.SelectionEvent;
  24 import org.eclipse.swt.widgets.Composite;
  25 import org.eclipse.swt.widgets.Display;
  26
  27 import eu.etaxonomy.cdm.model.common.Language;
  28 import eu.etaxonomy.cdm.model.common.LanguageString;
  29 import eu.etaxonomy.cdm.model.common.MultilanguageTextHelper;
  30 import eu.etaxonomy.cdm.model.common.TermType;
  31 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  32 import eu.etaxonomy.taxeditor.preference.PreferencesUtil;
  33 import eu.etaxonomy.taxeditor.store.CdmStore;
  34 import eu.etaxonomy.taxeditor.ui.combo.TermComboElement;
  35 import eu.etaxonomy.taxeditor.ui.element.CdmFormFactory;
  36 import eu.etaxonomy.taxeditor.ui.element.ICdmFormElement;
  37 import eu.etaxonomy.taxeditor.ui.element.LanguageStringWithLabelElement;
  38 import eu.etaxonomy.taxeditor.ui.element.LayoutConstants;
  39 import eu.etaxonomy.taxeditor.ui.element.MultilanguageTextElement;
  40 import eu.etaxonomy.taxeditor.ui.element.RootElement;
  41
  42 /**
  43  * <p>TranslationWizardPage class.</p>
  44  *
  45  * @author n.hoffmann
  46  * @created Sep 29, 2010
  47  * @version 1.0
  48  */
  49 public class TranslationWizardPage extends WizardPage{
  50
  51         private static int TEXT_HEIGHT = 400;
  52
  53         private final Map<Language, LanguageString> multilanguageText;
  54
  55         MultilanguageTextElement source;
  56
  57         private final CdmFormFactory formFactory;
  58
  59         private TermComboElement<Language> combo_sourceLanguage;
  60
  61         private LanguageStringWithLabelElement text_source;
  62
  63         private TermComboElement<Language> combo_targetLanguage;
  64
  65         private LanguageStringWithLabelElement text_target;
  66
  67         /**
  68          * <p>Constructor for TranslationWizardPage.</p>
  69          *
  70          * @param multilanguageText a {@link java.util.Map} object.
  71          */
  72         protected TranslationWizardPage(Map<Language, LanguageString> multilanguageText) {
  73                 super("TranslationWizardPage");
  74                 Assert.isNotNull(multilanguageText, "Multilanguage text may not be null");
  75                 setTitle("Add or edit translations.");
  76                 this.multilanguageText = multilanguageText;
  77                 formFactory = new CdmFormFactory(Display.getCurrent());
  78                 setPageComplete(false);
  79         }
  80
  81         /* (non-Javadoc)
  82          * @see org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets.Composite)
  83          */
  84         /** {@inheritDoc} */
  85         @Override
  86         public void createControl(Composite parent) {
  87                 Composite control = formFactory.createComposite(parent);
  88 //              control.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_GREEN));
  89                 control.setLayout(LayoutConstants.LAYOUT(2, true));
  90
  91                 Composite leftContainer = formFactory.createComposite(control);
  92                 leftContainer.setLayoutData(LayoutConstants.FILL());
  93                 leftContainer.setLayout(LayoutConstants.LAYOUT(1, false));
  94 //              leftContainer.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_BLUE));
  95                 RootElement leftRoot = new RootElement(formFactory, leftContainer);
  96
  97                 Composite rightContainer = formFactory.createComposite(control);
  98                 rightContainer.setLayoutData(LayoutConstants.FILL());
  99                 rightContainer.setLayout(LayoutConstants.LAYOUT(1, false));
 100 //              rightContainer.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_RED));
 101                 RootElement rightRoot = new RootElement(formFactory, rightContainer);
 102
 103                 createLeftControls(leftRoot);
 104                 createRightControls(rightRoot);
 105
 106                 // initialize with default language
 107                 setSource(CdmStore.getDefaultLanguage());
 108
 109
 110                 setControl(control);
 111         }
 112
 113         /**
 114          * @param defaultLanguage
 115          */
 116         private void setSource(Language language) {
 117
 118                 List<Language> languages = Arrays.asList(new Language[]{language});
 119
 120                 LanguageString preferredLanguageString = MultilanguageTextHelper.getPreferredLanguageString(multilanguageText, languages);
 121
 122                 if(preferredLanguageString != null){
 123                         combo_sourceLanguage.setSelection(preferredLanguageString.getLanguage());
 124                         text_source.setLanguageString(preferredLanguageString);
 125                 }
 126         }
 127
 128
 129         /**
 130          *
 131          * @param element
 132          */
 133         private void createLeftControls(ICdmFormElement element){
 134
 135                 combo_sourceLanguage = formFactory.createDefinedTermComboElement(TermType.Language, element, null, null, SWT.NULL);
 136
 137                 combo_sourceLanguage.setTerms(getLanguages());
 138
 139                 combo_sourceLanguage.addSelectionListener(new SelectionAdapter() {
 140                         /* (non-Javadoc)
 141                          * @see org.eclipse.swt.events.SelectionAdapter#widgetSelected(org.eclipse.swt.events.SelectionEvent)
 142                          */
 143                         @Override
 144                         public void widgetSelected(SelectionEvent e) {
 145                                 text_source.setLanguageString(multilanguageText.get(combo_sourceLanguage.getSelection()));
 146                         }
 147                 });
 148
 149                 LanguageString preferredLanguageString = MultilanguageTextHelper.getPreferredLanguageString(multilanguageText, getLanguages());
 150                 if (preferredLanguageString == null){
 151                         preferredLanguageString = LanguageString.NewInstance("", PreferencesUtil.getGlobalLanguage());
 152                 }
 153                 text_source = formFactory.createLanguageStringWithLabelElement(element, null, preferredLanguageString, TEXT_HEIGHT, false, SWT.NULL);
 154
 155 //              text_source.setEnabled(false);
 156
 157                 text_source.setText(preferredLanguageString.getText());
 158         }
 159
 160         /**
 161          *
 162          * @param element
 163          */
 164         private void createRightControls(ICdmFormElement element){
 165                 combo_targetLanguage = formFactory.createDefinedTermComboElement(TermType.Language, element, null, null, SWT.NULL);
 166
 167                 combo_targetLanguage.addSelectionListener(new SelectionAdapter() {
 168                         /* (non-Javadoc)
 169                          * @see org.eclipse.swt.events.SelectionAdapter#widgetSelected(org.eclipse.swt.events.SelectionEvent)
 170                          */
 171                         @Override
 172                         public void widgetSelected(SelectionEvent e) {
 173                                 Language language = combo_targetLanguage.getSelection();
 174
 175                                 if (language == null){
 176                                         setPageComplete(false);
 177                                         return;
 178                                 }
 179
 180                                 setPageComplete(true);
 181                                 LanguageString languageString;
 182
 183                                 if(multilanguageText.containsKey(language)){
 184                                         languageString = multilanguageText.get(language);
 185                                 }else{
 186                                         languageString = LanguageString.NewInstance("", language);
 187                                 }
 188
 189                                 text_target.setLanguageString(languageString);
 190                         }
 191                 });
 192
 193                 text_target = formFactory.createLanguageStringWithLabelElement(element, null, null, TEXT_HEIGHT, false, SWT.NULL);
 194
 195                 //
 196                 // The automated translation did rely on the Google Translate API. Unfortunately this service is not free anymore.
 197                 // See http://code.google.com/apis/language/translate/overview.html
 198                 //
 199 //              Button button_translationService = formFactory.createButton(element.getLayoutComposite(), "Translate", SWT.PUSH);
 200 //              button_translationService.addSelectionListener(new SelectionAdapter() {
 201 //                      /* (non-Javadoc)
 202 //                       * @see org.eclipse.swt.events.SelectionAdapter#widgetSelected(org.eclipse.swt.events.SelectionEvent)
 203 //                       */
 204 //                      @Override
 205 //                      public void widgetSelected(SelectionEvent event) {
 206 //                              ITranslationServiceWrapper service = new GoogleLanguageApiWrapper();
 207 //                              String translatedText;
 208 //                              try {
 209 //                                      String text = text_source.getText();
 210 //                                      Language sourceLanguage = text_source.getLanguageString().getLanguage();
 211 //                                      Language targetLanguage = combo_targetLanguage.getSelection();
 212 //
 213 //                                      if(targetLanguage == null){
 214 //                                              StoreUtil.warningDialog("Please select a target language", TranslationWizardPage.class, "Please select a language from the combo box at the right.");
 215 //                                              return;
 216 //                                      }
 217 //
 218 //                                      translatedText = service.translate(text, sourceLanguage, targetLanguage);
 219 //                                      text_target.setText(translatedText);
 220 //                              } catch (LanguageNotSupportedException e) {
 221 //                                      StoreUtil.warningDialog("Language not supported", TranslationWizardPage.class, "The chosen language is not supported by the translation service.");
 222 //                              } catch (Exception e){
 223 //                                      StoreUtil.warningDialog("Error translating text", TranslationWizardPage.class, e.getMessage());
 224 //                              }
 225 //
 226 //                      }
 227 //              });
 228         }
 229
 230
 231         /**
 232          *
 233          * @return
 234          */
 235         private List<Language> getLanguages(){
 236                 Set<Language> languageSet = MultilanguageTextHelper.getLanguages(multilanguageText);
 237
 238                 List<Language> languageList = new ArrayList<Language>();
 239                 // protect against corrupt language sets
 240                 for (Language language : languageSet){
 241                         if (language != null){
 242                                 languageList.add(language);
 243                         }else{
 244                                 MessagingUtils.warningDialog("Empty languages", getClass(), "The multilanguage string contains invalid data. Please contact the administrator of you datasource.");
 245                         }
 246                 }
 247
 248                 return languageList;
 249         }
 250
 251         /* (non-Javadoc)
 252          * @see org.eclipse.jface.dialogs.DialogPage#dispose()
 253          */
 254         /** {@inheritDoc} */
 255         @Override
 256         public void dispose() {
 257                 super.dispose();
 258         }
 259
 260         /**
 261          * @return
 262          *
 263          */
 264         public LanguageString getTargetLanguageString() {
 265                 return text_target.getLanguageString();
 266         }
 267 }