tableviewerwithcopy.java

Eclipse RCP下编写的工作管理软件代码

package net.sf.pim.view;

import java.util.ArrayList;

import org.eclipse.jface.action.MenuManager;
import org.eclipse.jface.viewers.ILabelProviderListener;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.ITableLabelProvider;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.dnd.Clipboard;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Menu;
/**
 * 支持将数据拷贝到剪贴板上的TableViewer
 * 其内容格式为字符串数组的List
 * @author hlstudio
 */
public class TableViewerWithCopy extends TableViewer {

	public TableViewerWithCopy(Composite parent, int style) {
		super(parent, style);
		init();
	}
	//初始化
	private void init() {
		setContentProvider(new ArrayListContentProvider());
		setLabelProvider(new ArrayLabelProvider());
		
        MenuManager menuMgr = new MenuManager("#PopupMenu"); //$NON-NLS-1$
        Clipboard clipboard=new Clipboard(this.getControl().getDisplay());
        Copy2ClipboardAction copyAction=new Copy2ClipboardAction(this,"copy",clipboard);
        menuMgr.add(copyAction);
        Menu menu = menuMgr.createContextMenu(getControl());
        getControl().setMenu(menu);
	}
	
	
	private class ArrayLabelProvider implements ITableLabelProvider {
		public Image getColumnImage(Object element, int columnIndex) {
			return null;
		}

		public String getColumnText(Object element, int columnIndex) {
			if (element instanceof String[])
				return ((String[]) element)[columnIndex];
			else
				return "";
		}

		public void addListener(ILabelProviderListener listener) {
		}

		public void dispose() {
		}

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

		public void removeListener(ILabelProviderListener listener) {
		}
	}

	private class ArrayListContentProvider implements IStructuredContentProvider {
		public void dispose() {
		}

		public void inputChanged(Viewer viewer, Object oldInput,
				Object newInput) {
		}

		public Object[] getElements(Object input) {
			if (input instanceof ArrayList)
				return ((ArrayList) input).toArray();
			else
				return new Object[0];
		}
	}

}