listcontentprovider.java

来自「基于eclipse的工具开发代码」· Java 代码 · 共 38 行

package com.cownew.studio.modelDev.editors;

import java.util.List;

import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.Viewer;

public class ListContentProvider implements IStructuredContentProvider
{
	List fContents;

	public Object[] getElements(Object input)
	{
		if (fContents != null && fContents == input)
			return fContents.toArray();
		return new Object[0];
	}

	public void inputChanged(Viewer viewer, Object oldInput, Object newInput)
	{
		if (newInput instanceof List)
			fContents = (List) newInput;
		else
			fContents = null;
	}

	public void dispose()
	{
		// empty default implementation
	}

	public boolean isDeleted(Object o)
	{
		return fContents != null && !fContents.contains(o);
	}

}