X-Git-Url: http://secure.phpeclipse.com

diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/viewsupport/ResourceToItemsMapper.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/viewsupport/ResourceToItemsMapper.java
deleted file mode 100644
index a28a8ab..0000000
--- a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/viewsupport/ResourceToItemsMapper.java
+++ /dev/null
@@ -1,204 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2000, 2004 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 net.sourceforge.phpdt.internal.ui.viewsupport;
-
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Stack;
-
-import net.sourceforge.phpdt.core.ICompilationUnit;
-import net.sourceforge.phpdt.core.IJavaElement;
-
-import org.eclipse.core.resources.IResource;
-import org.eclipse.jface.viewers.ContentViewer;
-import org.eclipse.jface.viewers.ILabelProvider;
-import org.eclipse.jface.viewers.IViewerLabelProvider;
-import org.eclipse.jface.viewers.ViewerLabel;
-import org.eclipse.swt.graphics.Image;
-import org.eclipse.swt.widgets.Item;
-
-/**
- * Helper class for updating error markers and other decorators that work on resources.
- * Items are mapped to their element's underlying resource.
- * Method <code>resourceChanged</code> updates all items that are affected from the changed
- * elements.
- */
-public class ResourceToItemsMapper {
-
-	private static final int NUMBER_LIST_REUSE= 10;
-
-	// map from resource to item
-	private HashMap fResourceToItem;
-	private Stack fReuseLists;
-	
-	private ContentViewer fContentViewer;
-
-	public ResourceToItemsMapper(ContentViewer viewer) {
-		fResourceToItem= new HashMap();
-		fReuseLists= new Stack();
-		
-		fContentViewer= viewer;
-	}
-
-	/**
-	 * Must be called from the UI thread.
-	 */
-	public void resourceChanged(IResource changedResource) {
-		Object obj= fResourceToItem.get(changedResource);
-		if (obj == null) {
-			// not mapped
-		} else if (obj instanceof Item) {
-			updateItem((Item) obj);
-		} else { // List of Items
-			List list= (List) obj;
-			for (int k= 0; k < list.size(); k++) {
-				updateItem((Item) list.get(k));
-			}
-		}
-	}
-		
-	private void updateItem(Item item) {
-		if (!item.isDisposed()) { // defensive code
-			ILabelProvider lprovider= (ILabelProvider) fContentViewer.getLabelProvider();
-			
-			Object data= item.getData();
-			
-			// If it is an IItemLabelProvider than short circuit: patch Tod (bug 55012)
-			if (lprovider instanceof IViewerLabelProvider) {
-				IViewerLabelProvider provider= (IViewerLabelProvider) lprovider;
-				
-				ViewerLabel updateLabel= new ViewerLabel(item.getText(), item.getImage());
-				provider.updateLabel(updateLabel, data);
-				
-				if (updateLabel.hasNewImage()) {
-					item.setImage(updateLabel.getImage());
-				}
-				if (updateLabel.hasNewText()) {
-					item.setText(updateLabel.getText());
-				}
-			} else {
-				Image oldImage= item.getImage();
-				Image image= lprovider.getImage(data);
-				if (image != null && !image.equals(oldImage)) {
-					item.setImage(image);
-				}
-				String oldText= item.getText();
-				String text= lprovider.getText(data);
-				if (text != null && !text.equals(oldText)) {
-					item.setText(text);
-				}
-			}
-		}
-	}
-
-	/**
-	 * Adds a new item to the map.
-	 * @param element Element to map
-	 * @param item The item used for the element
-	 */
-	public void addToMap(Object element, Item item) {
-		IResource resource= getCorrespondingResource(element);
-		if (resource != null) {
-			Object existingMapping= fResourceToItem.get(resource);
-			if (existingMapping == null) {
-				fResourceToItem.put(resource, item);
-			} else if (existingMapping instanceof Item) {
-				if (existingMapping != item) {
-					List list= getNewList();
-					list.add(existingMapping);
-					list.add(item);
-					fResourceToItem.put(resource, list);
-				}
-			} else { // List			
-				List list= (List) existingMapping;
-				if (!list.contains(item)) {
-					list.add(item);
-				}
-			}
-		}
-	}
-
-	/**
-	 * Removes an element from the map.
-	 */	
-	public void removeFromMap(Object element, Item item) {
-		IResource resource= getCorrespondingResource(element);
-		if (resource != null) {
-			Object existingMapping= fResourceToItem.get(resource);
-			if (existingMapping == null) {
-				return;
-			} else if (existingMapping instanceof Item) {
-				fResourceToItem.remove(resource);
-			} else { // List
-				List list= (List) existingMapping;
-				list.remove(item);
-				if (list.isEmpty()) {
-					fResourceToItem.remove(list);
-					releaseList(list);
-				}
-			}
-		}
-	}
-	
-	private List getNewList() {
-		if (!fReuseLists.isEmpty()) {
-			return (List) fReuseLists.pop();
-		}
-		return new ArrayList(2);
-	}
-	
-	private void releaseList(List list) {
-		if (fReuseLists.size() < NUMBER_LIST_REUSE) {
-			fReuseLists.push(list);
-		}
-	}
-	
-	/**
-	 * Clears the map.
-	 */
-	public void clearMap() {
-		fResourceToItem.clear();
-	}
-	
-	/**
-	 * Tests if the map is empty
-	 */
-	public boolean isEmpty() {
-		return fResourceToItem.isEmpty();
-	}	
-	
-	/**
-	 * Method that decides which elements can have error markers
-	 * Returns null if an element can not have error markers.
-	 */	
-	private static IResource getCorrespondingResource(Object element) {
-		if (element instanceof IJavaElement) {
-			IJavaElement elem= (IJavaElement) element;
-			if (!elem.isReadOnly()) { // only modifieable elements can get error ticks
-				IResource res= elem.getResource();
-				if (res == null) {
-					ICompilationUnit cu= (ICompilationUnit) elem.getAncestor(IJavaElement.COMPILATION_UNIT);
-					if (cu != null) {
-						// elements in compilation units are mapped to the underlying resource of the original cu
-						res= cu.getResource();
-					}
-				}
-				return res; 
-			}
-			return null;
-		} else if (element instanceof IResource) {
-			return (IResource) element;
-		}
-		return null;
-	}
-	
-}