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/**
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*
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*/
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package eu.etaxonomy.taxeditor.propertysheet;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.Set;
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import org.eclipse.jface.dialogs.IDialogConstants;
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import org.eclipse.jface.dialogs.InputDialog;
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import org.eclipse.jface.viewers.DoubleClickEvent;
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import org.eclipse.jface.viewers.IDoubleClickListener;
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import org.eclipse.jface.viewers.ISelectionChangedListener;
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import org.eclipse.jface.viewers.IStructuredContentProvider;
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import org.eclipse.jface.viewers.IStructuredSelection;
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import org.eclipse.jface.viewers.LabelProvider;
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import org.eclipse.jface.viewers.ListViewer;
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import org.eclipse.jface.viewers.SelectionChangedEvent;
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import org.eclipse.jface.viewers.Viewer;
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import org.eclipse.swt.SWT;
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import org.eclipse.swt.events.ModifyEvent;
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import org.eclipse.swt.events.ModifyListener;
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import org.eclipse.swt.events.MouseAdapter;
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import org.eclipse.swt.events.MouseEvent;
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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.Button;
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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.swt.widgets.List;
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import org.eclipse.swt.widgets.Shell;
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import org.eclipse.swt.widgets.Text;
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import eu.etaxonomy.cdm.model.common.Extension;
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import eu.etaxonomy.cdm.model.common.ExtensionType;
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import eu.etaxonomy.taxeditor.store.VocabularyStore;
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/**
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* @author p.ciardelli
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*
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*/
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public class CreateExtensionDialog extends InputDialog {
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private Set<ExtensionType> extensionTypes;
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private ListViewer textViewer;
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String typeMessage = "Choose a type for the new extension";
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private String valueMessage = "Enter a value for the new extension";
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private Button okButton;
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private Set<ExtensionType> selectedExtensionTypes;
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private Text text;
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protected boolean hasSelection = false;
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private Extension newExtension;
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/**
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* @param parentShell
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* @param extensionTypes
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*/
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protected CreateExtensionDialog(Shell shell) {
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super(shell, "Create a new extension",
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"Choose a type and value for the new extension", null, null);
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extensionTypes = VocabularyStore.getExtensionTypes();
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}
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protected Control createDialogArea(Composite parent) {
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// create composite
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Composite composite = new Composite(parent, SWT.NONE);
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GridLayout layout = new GridLayout();
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layout.marginHeight = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_MARGIN);
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layout.marginWidth = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_MARGIN);
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layout.verticalSpacing = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_SPACING);
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layout.horizontalSpacing = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_SPACING);
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composite.setLayout(layout);
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composite.setLayoutData(new GridData(GridData.FILL_BOTH));
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applyDialogFont(composite);
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// create message
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if (typeMessage != null) {
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Label typeLabel = new Label(composite, SWT.WRAP);
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typeLabel.setText(typeMessage);
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GridData data = new GridData(GridData.GRAB_HORIZONTAL
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| GridData.GRAB_VERTICAL | GridData.HORIZONTAL_ALIGN_FILL
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| GridData.VERTICAL_ALIGN_CENTER);
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data.widthHint = convertHorizontalDLUsToPixels(IDialogConstants.MINIMUM_MESSAGE_AREA_WIDTH);
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typeLabel.setLayoutData(data);
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typeLabel.setFont(parent.getFont());
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}
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textViewer = new ListViewer(new List(composite, SWT.SINGLE | SWT.BORDER));
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textViewer.getList().setLayoutData(new GridData(GridData.GRAB_HORIZONTAL
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| GridData.HORIZONTAL_ALIGN_FILL));
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textViewer.setContentProvider(new ContentProvider());
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textViewer.setLabelProvider(new LabelProvider() {
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/* (non-Javadoc)
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* @see org.eclipse.jface.viewers.LabelProvider#getText(java.lang.Object)
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*/
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@Override
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public String getText(Object element) {
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return ((ExtensionType) element).getLabel();
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}
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});
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textViewer.setInput(extensionTypes);
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textViewer.addSelectionChangedListener(new ISelectionChangedListener () {
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public void selectionChanged(SelectionChangedEvent event) {
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hasSelection = true;
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setOkEnabled(true);
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}
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});
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// create message
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if (valueMessage != null) {
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Label valueLabel = new Label(composite, SWT.WRAP);
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valueLabel.setText(valueMessage);
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GridData data = new GridData(GridData.GRAB_HORIZONTAL
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| GridData.GRAB_VERTICAL | GridData.HORIZONTAL_ALIGN_FILL
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| GridData.VERTICAL_ALIGN_CENTER);
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data.widthHint = convertHorizontalDLUsToPixels(IDialogConstants.MINIMUM_MESSAGE_AREA_WIDTH);
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valueLabel.setLayoutData(data);
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valueLabel.setFont(parent.getFont());
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}
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text = new Text(composite, getInputTextStyle());
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text.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL
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| GridData.HORIZONTAL_ALIGN_FILL));
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text.addModifyListener(new ModifyListener() {
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public void modifyText(ModifyEvent e) {
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setOkEnabled(true);
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}
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});
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applyDialogFont(composite);
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return composite;
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}
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/* (non-Javadoc)
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* @see org.eclipse.jface.dialogs.InputDialog#createButtonsForButtonBar(org.eclipse.swt.widgets.Composite)
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*/
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protected void createButtonsForButtonBar(Composite parent) {
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// create OK and Cancel buttons by default
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okButton = createButton(parent, IDialogConstants.OK_ID,
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IDialogConstants.OK_LABEL, true);
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okButton.addMouseListener(new MouseAdapter() {
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/* (non-Javadoc)
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* @see org.eclipse.swt.events.MouseAdapter#mouseUp(org.eclipse.swt.events.MouseEvent)
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*/
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@Override
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public void mouseUp(MouseEvent e) {
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close();
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}
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});
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createButton(parent, IDialogConstants.CANCEL_ID,
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IDialogConstants.CANCEL_LABEL, false);
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setOkEnabled(false);
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}
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/**
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* @param enabled
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*/
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protected void setOkEnabled(boolean enabled) {
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if (text.getText().length() > 0 && hasSelection) {
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okButton.setEnabled(enabled);
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} else {
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okButton.setEnabled(false);
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}
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}
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/* (non-Javadoc)
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* @see org.eclipse.jface.dialogs.Dialog#close()
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*/
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@Override
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public boolean close() {
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setNewExtension();
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return super.close();
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}
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/**
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* @return
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*
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*/
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private void setNewExtension() {
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selectedExtensionTypes = new HashSet<ExtensionType>();
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ExtensionType type = (ExtensionType) ((IStructuredSelection) textViewer.getSelection()).getFirstElement();
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String value = text.getText();
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newExtension = Extension.NewInstance();
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newExtension.setValue(value);
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newExtension.setType(type);
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}
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class ContentProvider implements IStructuredContentProvider {
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/* (non-Javadoc)
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* @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object)
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*/
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public Object[] getElements(Object inputElement) {
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return extensionTypes.toArray();
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}
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/* (non-Javadoc)
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* @see org.eclipse.jface.viewers.IContentProvider#dispose()
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*/
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public void dispose() {}
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/* (non-Javadoc)
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* @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
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*/
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public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {}
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}
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/**
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* @return
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*/
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public Extension getNewExtension() {
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return newExtension;
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}
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}
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