| /******************************************************************************* |
| * Copyright (c) 2000, 2003 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.search.internal.ui.util; |
| |
| import java.util.Arrays; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.Set; |
| import java.util.StringTokenizer; |
| |
| import org.eclipse.swt.events.DisposeEvent; |
| import org.eclipse.swt.events.DisposeListener; |
| import org.eclipse.swt.events.SelectionAdapter; |
| import org.eclipse.swt.events.SelectionEvent; |
| import org.eclipse.swt.events.SelectionListener; |
| import org.eclipse.swt.widgets.Button; |
| import org.eclipse.swt.widgets.Combo; |
| import org.eclipse.swt.widgets.Widget; |
| |
| import org.eclipse.ui.IEditorRegistry; |
| |
| import org.eclipse.search.internal.ui.SearchMessages; |
| |
| public class FileTypeEditor extends SelectionAdapter implements DisposeListener, SelectionListener { |
| |
| private Combo fTextField; |
| private Button fBrowseButton; |
| private IEditorRegistry fResourceEditorRegistry; |
| |
| final static String TYPE_DELIMITER= SearchMessages.getString("FileTypeEditor.typeDelimiter"); //$NON-NLS-1$ |
| |
| public FileTypeEditor(IEditorRegistry registry, Combo textField, Button browseButton) { |
| fResourceEditorRegistry= registry; |
| fTextField= textField; |
| fBrowseButton= browseButton; |
| |
| fTextField.addDisposeListener(this); |
| fBrowseButton.addDisposeListener(this); |
| fBrowseButton.addSelectionListener(this); |
| } |
| |
| public void widgetDisposed(DisposeEvent event) { |
| Widget widget= event.widget; |
| if (widget == fTextField) |
| fTextField= null; |
| else if (widget == fBrowseButton) |
| fBrowseButton= null; |
| } |
| |
| public void widgetSelected(SelectionEvent event) { |
| if (event.widget == fBrowseButton) |
| handleBrowseButton(); |
| } |
| |
| public void widgetDoubleSelected(SelectionEvent event) { |
| } |
| /** |
| * Answer a collection of the currently-specified resource types |
| * |
| * @return java.util.Vector |
| */ |
| public Set getFileTypes() { |
| Set result= new HashSet(); |
| StringTokenizer tokenizer= new StringTokenizer(fTextField.getText(), TYPE_DELIMITER); |
| |
| while (tokenizer.hasMoreTokens()) { |
| String currentExtension= tokenizer.nextToken().trim(); |
| result.add(currentExtension); |
| } |
| return result; |
| } |
| /** |
| * Populate self's import types field based upon the passed types collection |
| * |
| * @param types java.util.Vector |
| */ |
| public void setFileTypes(Set types) { |
| fTextField.setText(typesToString(types)); |
| } |
| protected void handleBrowseButton() { |
| TypeFilteringDialog dialog= new TypeFilteringDialog(fTextField.getShell(), getFileTypes()); |
| if (dialog.open() == TypeFilteringDialog.OK) { |
| setFileTypes(new HashSet(Arrays.asList(dialog.getResult()))); |
| } |
| } |
| |
| public static String typesToString(Set types) { |
| StringBuffer result= new StringBuffer(); |
| Iterator typesIter= types.iterator(); |
| boolean first= true; |
| while (typesIter.hasNext()) { |
| if (!first) { |
| result.append(TYPE_DELIMITER); |
| result.append(" "); //$NON-NLS-1$ |
| } else |
| first= false; |
| result.append(typesIter.next()); |
| } |
| return result.toString(); |
| } |
| } |