treeviewerlabelprovider.java

TTreeview 的 Java实例 Eclipes环境下

package demo.pluginA.treeview.internal;

import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.ILabelProviderListener;
import org.eclipse.jface.viewers.ITableLabelProvider;
import org.eclipse.swt.graphics.Image;
import demo.pluginA.treeview.data.*;
import demo.pluginA.treeview.data.ITreeEntry;


public class TreeViewerLabelProvider implements ITableLabelProvider {

	// get the text used for label displaying, cannot be null
	public String getColumnText(Object element, int columnIndex) {
		ITreeEntry entry = (ITreeEntry) element;
		switch (columnIndex) { // ����кţ�4����ʾ��¼���ĸ��ֶ�ֵ
		case 0:
			return entry.getName();
		case 1:
			if((entry instanceof QueryEntity)&&((QueryEntity)entry).getOption()==true){
				return "Yes";
			}
			if((entry instanceof QueryEntity)&&((QueryEntity)entry).getOption()==false){
				return "NO";
			}
			else{
				return "";
			}
		case 2:
			String disp = entry.getDiscription();
			return disp;
		case 3:
			return entry.getId().toString();
		default:
			return "";
		}
	}
	
	public Image getColumnImage(Object element, int columnIndex) {
		return null;
	}

	public void addListener(ILabelProviderListener listener) {
	}

	public void removeListener(ILabelProviderListener listener) {
	}

	public void dispose() {
	}

	public boolean isLabelProperty(Object element, String property) {
		return false;
	}
	

}