treeprovider.java

来自「一个资源管理器的java代码」· Java 代码 · 共 35 行

package org.oscar.explorer;

import java.io.File;

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

public class TreeProvider implements ITreeContentProvider {
	public Object[] getChildren(Object arg0) {
		Object[] kids = ((File)arg0).listFiles();
		return kids == null ? new Object[0] : kids;
	}	
	public Object getParent(Object arg0) {		
		return ((File)arg0).getParentFile();
	}
	public boolean hasChildren(Object arg0) {
		return getChildren(arg0).length > 0;
	}
	public Object[] getElements(Object arg0) {	
		return getChildren(arg0);
	}	
	public void dispose() {
		// TODO Auto-generated method stub		
	}

	/* (non-Javadoc)
	 * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
	 */
	public void inputChanged(Viewer arg0, Object arg1, Object arg2) {
		// TODO Auto-generated method stub
		
	}

}