sampleaction.java

基于JAVA RCP的应用, 在代码中可以学习到editor, view, perspective的使用, 和插件的配置管理

package com.fengmanfei.myrcp.actions;

import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.IWorkbenchWindowActionDelegate;
import org.eclipse.ui.PartInitException;
import org.eclipse.jface.dialogs.MessageDialog;
import com.fengmanfei.myrcp.views.*;

/**
 * Our sample action implements workbench action delegate.
 * The action proxy will be created by the workbench and
 * shown in the UI. When the user tries to use the action,
 * this delegate will be created and execution will be 
 * delegated to it.
 * @see IWorkbenchWindowActionDelegate
 */
public class SampleAction implements IWorkbenchWindowActionDelegate {
	
	private IWorkbenchWindow window;
	private int instanceNum = 0;
	/**
	 * The constructor.
	 */
	public SampleAction() {
	}

	/**
	 * The action has been activated. The argument of the
	 * method represents the 'real' action sitting
	 * in the workbench UI.
	 * @see IWorkbenchWindowActionDelegate#run
	 */
	public void run(IAction action) {
		/*
		MessageDialog.openInformation(
			window.getShell(),
			"MyRCP 插件",
			"Hello，Eclipse world");
			*/

		if(window != null) {	
			try {
				window.getActivePage().showView(AnotherView.ID, Integer.toString(instanceNum++), IWorkbenchPage.VIEW_CREATE);
			} catch (PartInitException e) {
				MessageDialog.openError(window.getShell(), "Error", "Error opening view:" + e.getMessage());
			}
		}
	
	}

	/**
	 * Selection in the workbench has been changed. We 
	 * can change the state of the 'real' action here
	 * if we want, but this can only happen after 
	 * the delegate has been created.
	 * @see IWorkbenchWindowActionDelegate#selectionChanged
	 */
	public void selectionChanged(IAction action, ISelection selection) {

	}

	/**
	 * We can use this method to dispose of any system
	 * resources we previously allocated.
	 * @see IWorkbenchWindowActionDelegate#dispose
	 */
	public void dispose() {
	}

	/**
	 * We will cache window object in order to
	 * be able to provide parent shell for the message dialog.
	 * @see IWorkbenchWindowActionDelegate#init
	 */
	public void init(IWorkbenchWindow window) {
		this.window = window;
	}
}