manageraction.java

基于Eclipse RCP开发的管理工具

 /*  
  * Copyright 2006 Marcel Schoffelmeer 
  * 
  * Licensed under the Apache License, Version 2.0 (the "License"); 
  * you may not use this file except in compliance with the License. 
  * You may obtain a copy of the License at 
  * 
  *    http://www.apache.org/licenses/LICENSE-2.0 
  *    
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS, 
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

package com.s10r.manager.actions;


import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.IWorkbenchWindow;

public abstract class ManagerAction extends Action
{
    protected IWorkbenchWindow window;
    
    protected ISelection selection;
    
    public ManagerAction()
    {    	
    }
    
	public ManagerAction(IWorkbenchWindow window)
	{
		this.window = window;
	}

	protected Display getDisplay()
	{
	    return window.getShell().getDisplay();
	}


	protected IWorkbenchWindow getWorkbenchWindow()
	{
		return window;
	}
	
	
	public void selectionChanged(IAction action, ISelection selection)
	{
		System.out.println("ManagerAction.selectionChanged: selection: " + selection);
		
		this.selection = selection;
	} 

	public void setActivePart(IAction action, IWorkbenchPart targetPart)
	{
		window = targetPart.getSite().getWorkbenchWindow();
	}
	

	protected void showStatusMessage(String msg)
	{
		try {
			
		
		window.getWorkbench().getActiveWorkbenchWindow()
		.getActivePage().getActiveEditor().getEditorSite()
		.getActionBars().getStatusLineManager().setMessage(
				msg);
		}
		// for debugging purposes to see if we always can get away
		// with this nagivation.
		catch (NullPointerException e)
		{
			e.printStackTrace();
			throw e;
		}
	}
}