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