| /******************************************************************************* |
| * 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.ui.views.markers.internal; |
| |
| import java.util.List; |
| |
| import org.eclipse.jface.viewers.IStructuredContentProvider; |
| import org.eclipse.jface.viewers.TableViewer; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.ui.IWorkbenchPartSite; |
| |
| |
| class TableContentProvider implements IStructuredContentProvider, IItemsChangedListener { |
| |
| private ITableViewContentProvider provider; |
| private IWorkbenchPartSite site; |
| private TableViewer viewer; |
| |
| public TableContentProvider(IWorkbenchPartSite site, ITableViewContentProvider provider) { |
| this.site = site; |
| this.provider = provider; |
| provider.addItemsChangedListener(this); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object) |
| */ |
| public Object[] getElements(Object inputElement) { |
| return provider.getElements(); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.viewers.IContentProvider#dispose() |
| */ |
| public void dispose() { |
| provider.removeItemsChangedListener(this); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object) |
| */ |
| public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { |
| if (viewer != null && viewer instanceof TableViewer) { |
| this.viewer = (TableViewer) viewer; |
| } |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.views.internal.tableview.IItemsChangedListener#itemsChanged(java.util.List, java.util.List, java.util.List) |
| */ |
| public void itemsChanged(final List additions, final List removals, final List changes) { |
| if (viewer != null) { |
| site.getShell().getDisplay().asyncExec(new Runnable() { |
| public void run() { |
| updateViewer(additions, removals, changes); |
| } |
| }); |
| } |
| } |
| |
| /** |
| * Updates the viewer given the lists of added, removed, and changes |
| * markers. This is called inside an syncExec. |
| */ |
| private void updateViewer(List additions, List removals, List changes) { |
| |
| // The widget may have been destroyed by the time this is run. |
| // Check for this and do nothing if so. |
| Control ctrl = viewer.getControl(); |
| |
| if (ctrl == null || ctrl.isDisposed()) { |
| return; |
| } |
| |
| ctrl.setRedraw(false); |
| |
| //update the viewer based on the marker changes. |
| //process removals before additions, to avoid multiple equal elements in |
| //the viewer |
| if (removals.size() > 0) { |
| |
| // Cancel any open cell editor. We assume that the one being edited |
| // is the one being removed. |
| viewer.cancelEditing(); |
| viewer.remove(removals.toArray()); |
| } |
| |
| if (additions.size() > 0) { |
| viewer.add(additions.toArray()); |
| } |
| |
| if (changes.size() > 0) { |
| viewer.update(changes.toArray(), null); |
| } |
| |
| ctrl.setRedraw(true); |
| } |
| |
| } |