showviewaction.java

java eclipse rcp学习

/**
 * 
 */
package chainShopMS.action;

import org.eclipse.jface.action.Action;
import org.eclipse.jface.dialogs.ErrorDialog;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.actions.ActionFactory.IWorkbenchAction;
import org.eclipse.ui.views.IViewDescriptor;

public class ShowViewAction extends Action implements IWorkbenchAction
{

	private IWorkbenchWindow workbenchWindow;

	private IViewDescriptor desc;

	public ShowViewAction(final IWorkbenchWindow window,
			final IViewDescriptor desc)
	{
		super("");
		/** 获得视图的名称 */
		final String label = desc.getLabel();
		/** 设置操作的名称 */
		setText(label);
		/** 设置操作的图标为视图的图标 */
		setImageDescriptor(desc.getImageDescriptor());
		/** 设置操作的提示文本 */
		setToolTipText(label);
		setId("ShowView" + desc.getId());
		this.workbenchWindow = window;
		this.desc = desc;
	}

	public void run()
	{
		/** 获得当前工作区及获得工作页面 */
		final IWorkbenchPage page = workbenchWindow.getActivePage();
		/** 如果页面不为null */
		if (page != null)
		{
			try
			{
				/** 显示视图 */
				page.showView(desc.getId());
			}
			catch (final PartInitException e)
			{
				ErrorDialog.openError(workbenchWindow.getShell(), "打开视图错误！", e
						.getMessage(), e.getStatus());
			}
		}
	}

	public void dispose()
	{
		workbenchWindow = null;

	}

}