| /******************************************************************************* |
| * Copyright (c) 2000, 2006 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.search.internal.ui.text; |
| |
| import org.eclipse.jface.viewers.IStructuredContentProvider; |
| import org.eclipse.jface.viewers.TableViewer; |
| import org.eclipse.jface.viewers.Viewer; |
| |
| import org.eclipse.search.ui.text.AbstractTextSearchResult; |
| |
| public class FileTableContentProvider implements IStructuredContentProvider, IFileSearchContentProvider { |
| |
| private final Object[] EMPTY_ARR= new Object[0]; |
| |
| private FileSearchPage fPage; |
| private AbstractTextSearchResult fResult; |
| |
| public FileTableContentProvider(FileSearchPage page) { |
| fPage= page; |
| } |
| |
| public void dispose() { |
| // nothing to do |
| } |
| |
| public Object[] getElements(Object inputElement) { |
| if (inputElement instanceof FileSearchResult) { |
| int elementLimit= getElementLimit(); |
| Object[] elements= ((FileSearchResult)inputElement).getElements(); |
| if (elementLimit != -1 && elements.length > elementLimit) { |
| Object[] shownElements= new Object[elementLimit]; |
| System.arraycopy(elements, 0, shownElements, 0, elementLimit); |
| return shownElements; |
| } |
| return elements; |
| } |
| return EMPTY_ARR; |
| } |
| |
| public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { |
| if (newInput instanceof FileSearchResult) { |
| fResult= (FileSearchResult) newInput; |
| } |
| } |
| |
| public void elementsChanged(Object[] updatedElements) { |
| TableViewer viewer= getViewer(); |
| int elementLimit= getElementLimit(); |
| boolean tableLimited= elementLimit != -1; |
| for (int i= 0; i < updatedElements.length; i++) { |
| if (fResult.getMatchCount(updatedElements[i]) > 0) { |
| if (viewer.testFindItem(updatedElements[i]) != null) |
| viewer.update(updatedElements[i], null); |
| else { |
| if (!tableLimited || viewer.getTable().getItemCount() < elementLimit) |
| viewer.add(updatedElements[i]); |
| } |
| } else |
| viewer.remove(updatedElements[i]); |
| } |
| } |
| |
| private int getElementLimit() { |
| return fPage.getElementLimit().intValue(); |
| } |
| |
| private TableViewer getViewer() { |
| return (TableViewer) fPage.getViewer(); |
| } |
| |
| public void clear() { |
| getViewer().refresh(); |
| } |
| } |