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/**
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* Copyright (C) 2007 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.taxeditor.preference;
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import java.io.IOException;
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import java.util.Locale;
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import org.apache.commons.lang.StringUtils;
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import org.eclipse.jface.dialogs.MessageDialog;
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import org.eclipse.jface.preference.PreferencePage;
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import org.eclipse.swt.SWT;
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import org.eclipse.swt.custom.CCombo;
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import org.eclipse.swt.events.SelectionEvent;
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import org.eclipse.swt.events.SelectionListener;
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import org.eclipse.swt.layout.GridData;
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import org.eclipse.swt.layout.GridLayout;
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import org.eclipse.swt.widgets.Composite;
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import org.eclipse.swt.widgets.Control;
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import org.eclipse.swt.widgets.Label;
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import org.eclipse.ui.IWorkbench;
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import org.eclipse.ui.IWorkbenchPreferencePage;
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import org.eclipse.ui.PlatformUI;
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import eu.etaxonomy.taxeditor.l10n.Messages;
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import eu.etaxonomy.taxeditor.model.MessagingUtils;
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/**
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* @author n.hoffmann
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* @created Dec 3, 2010
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* @version 1.0
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*/
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public class LanguageEditorPreferencePage extends PreferencePage implements IWorkbenchPreferencePage{
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private CCombo combo;
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PreferencesUtil preferencesUtil = new PreferencesUtil();
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private boolean isSelectionChanged = false;
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private int initalSelectionIndex;
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/* (non-Javadoc)
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* @see org.eclipse.jface.preference.PreferencePage#createContents(org.eclipse.swt.widgets.Composite)
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*/
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@Override
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protected Control createContents(Composite parent) {
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Composite container = new Composite(parent, SWT.NULL);
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final GridLayout gridLayout = new GridLayout();
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container.setLayout(gridLayout);
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createEditorDefaultLanguage(container);
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return container;
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}
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/**
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* @param container
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*/
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private void createEditorDefaultLanguage(Composite container) {
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// TODO Auto-generated method stub
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final Label description = new Label(container, SWT.NONE);
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description.setText(Messages.LanguageEditorPreferencePage_RestartRequired);
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final Label label = new Label(container, SWT.NONE);
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label.setText(Messages.LanguageEditorPreferencePage_ChooseDefaultLanguage);
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GridData oneLine = new GridData();
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oneLine.grabExcessHorizontalSpace = true;
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oneLine.horizontalAlignment = GridData.FILL;
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combo = new CCombo(container, SWT.NONE);
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combo.setLayoutData(oneLine);
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combo.add(Language.GERMAN.getLabel(), 0);
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combo.add(Language.ENGLISH.getLabel(), 1);
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restoreSavedSelection();
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combo.addSelectionListener(new SelectionListener() {
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@Override
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public void widgetSelected(SelectionEvent e) {
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try {
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preferencesUtil.writePropertyToConfigFile(combo.getSelectionIndex());
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if(initalSelectionIndex != combo.getSelectionIndex()) {
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isSelectionChanged = true;
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}else{
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isSelectionChanged = false;
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}
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} catch (IOException e1) {
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MessagingUtils.messageDialog("Failed to write Config.ini", LanguageEditorPreferencePage.class,
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"Language switch failed, because could not write to Folder. No writing permissions!", null);
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}
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}
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@Override
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public void widgetDefaultSelected(SelectionEvent e) {
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// TODO Auto-generated method stub
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}
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});
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}
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/**
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* TODO: This method is not taking advantages of the enum field yet
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*/
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private void restoreSavedSelection() {
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String rememberedValue = PreferencesUtil.getPreferenceStore().getString(IPreferenceKeys.DEFAULT_LANGUAGE_EDITOR);
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if(StringUtils.isNotEmpty(rememberedValue)&& StringUtils.isNotBlank(rememberedValue)){
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if(rememberedValue.equalsIgnoreCase("en")){ //$NON-NLS-1$
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initalSelectionIndex = 1;
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combo.select(1);
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}else if(rememberedValue.equalsIgnoreCase("de")){ //$NON-NLS-1$
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initalSelectionIndex = 0;
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combo.select(0);
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}
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}else{
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Locale locale = Locale.getDefault();
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if(locale.getLanguage().equals(new Locale("de").getLanguage())){
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initalSelectionIndex = 0;
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combo.select(0);
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}else if(locale.getLanguage().equals(new Locale("en").getLanguage())){
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initalSelectionIndex = 1;
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combo.select(1);
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}
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}
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}
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private enum Language{
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GERMAN("Deutsch"), ENGLISH("English"); //$NON-NLS-1$ //$NON-NLS-2$
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private final String label;
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private Language(String label){
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this.label = label;
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}
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/**
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* @return the label
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*/
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public String getLabel() {
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return label;
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}
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}
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/* (non-Javadoc)
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* @see org.eclipse.ui.IWorkbenchPreferencePage#init(org.eclipse.ui.IWorkbench)
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*/
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@Override
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public void init(IWorkbench workbench) {
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setPreferenceStore(PreferencesUtil.getPreferenceStore());
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}
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/* (non-Javadoc)
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* @see org.eclipse.jface.preference.PreferencePage#performOk()
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*/
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@Override
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public boolean performOk() {
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try {
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if(isSelectionChanged){
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preferencesUtil.writePropertyToConfigFile(combo.getSelectionIndex());
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boolean result = MessageDialog.openConfirm(getShell(), Messages.LanguageEditorPreferencePage_PleaseRestart, Messages.LanguageEditorPreferencePage_EditorHasToRestart);
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if(result){
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//Press Ok
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PlatformUI.getWorkbench().restart();
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}
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}
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} catch (IOException e) {
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e.printStackTrace();
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}
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return super.performOk();
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}
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}
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