Eclipse RCP开发入门学习笔记——02.菜单和对话框

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学习:http://www.blogjava.net/youxia/archive/2006/11/20/82388.html

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1. 以编辑 ApplicationActionBarAdvisor.java 这个类的方式进行：

1) 编写菜单action类:

package hellorcp.action;

import hellorcp.dialog.FirstDialog;

import org.eclipse.jface.action.Action;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.actions.ActionFactory.IWorkbenchAction;

public class FirstAction extends Action implements IWorkbenchAction {
	private IWorkbenchWindow workbenchWindow;

	public FirstAction(IWorkbenchWindow window) {
		if (window == null) {
			throw new IllegalArgumentException();
		}

		this.workbenchWindow = window;
	}

	public void run() {
		// make sure action is not disposed
		if (workbenchWindow != null) {
			// 在这里添加功能
			FirstDialog dg = new FirstDialog(workbenchWindow.getShell());
			dg.open();

		}
	}

	public void dispose() {
		workbenchWindow = null;

	}

}

 

2) 该菜单的动作为打开对话框，故还需编写对话框类：

package hellorcp.dialog;

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Dialog;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

public class FirstDialog extends Dialog {
	protected Shell shell;

	private int result;

	public FirstDialog(Shell parent, int style) {
		super(parent, style);
	}

	public FirstDialog(Shell parent) {
		this(parent, SWT.NONE);
	}

	public int open() {
		createContents();
		shell.open();
		shell.layout();
		Display display = getParent().getDisplay();
		while (!shell.isDisposed()) {
			if (!display.readAndDispatch())
				display.sleep();
		}
		return result;
	}

	protected void createContents() {
		shell = new Shell(getParent(), SWT.DIALOG_TRIM | SWT.APPLICATION_MODAL);
		shell.setSize(150, 70);
		shell.setText(" 第一个对话框 ");

		final Button okButton = new Button(shell, SWT.NONE);
		okButton.addSelectionListener(new SelectionAdapter() {
			public void widgetSelected(SelectionEvent e) {
				result = 1;
				shell.dispose();
			}
		});
		okButton.setText(" OK ");
		okButton.setBounds(10, 10, 48, 22);

		final Button cancelButton = new Button(shell, SWT.NONE);
		cancelButton.addSelectionListener(new SelectionAdapter() {
			public void widgetSelected(SelectionEvent e) {
				result = 2;
				shell.dispose();
			}
		});
		cancelButton.setText(" Cancel ");
		cancelButton.setBounds(89, 10, 48, 22);
	}

}

 

3) 编辑方法makeActions, 注册菜单action; 然后编辑方法 fillMenuBar 画出菜单：

package hellorcp;

import hellorcp.action.FirstAction;

import org.eclipse.jface.action.IMenuManager;
import org.eclipse.jface.action.MenuManager;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.actions.ActionFactory.IWorkbenchAction;
import org.eclipse.ui.application.ActionBarAdvisor;
import org.eclipse.ui.application.IActionBarConfigurer;

public class ApplicationActionBarAdvisor extends ActionBarAdvisor {

	private IWorkbenchAction action1;
	private IWorkbenchAction action2;

	public ApplicationActionBarAdvisor(IActionBarConfigurer configurer) {
		super(configurer);
	}

	protected void makeActions(IWorkbenchWindow window) {
		action1 = new FirstAction(window);
		action1.setText("FirstMenu1");
		action1.setId(action1.getClass().getName());
		register(action1);
	
		action2 = new FirstAction(window);
		action2.setText("FirstMenu2");
		action2.setId(action2.getClass().getName());
		register(action2);
	}

	protected void fillMenuBar(IMenuManager menuBar) {
		MenuManager newMenu = new MenuManager("第一个菜单", "hellorcp.firstmenu1");
		menuBar.add(newMenu);
		newMenu.add(action1);

		MenuManager newMenu2 = new MenuManager("第一个菜单", "hellorcp.firstmenu2");
		menuBar.add(newMenu2);
		newMenu.add(action2);
	}

}

 

4) 运行效果如下图：

 

 

2. 以编辑 plugin.xml 的方式添加菜单：

1) 编写菜单action类：

package hellorcp.action;

import hellorcp.dialog.FirstDialog;

import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.IWorkbenchWindowActionDelegate;

public class Action2 implements IWorkbenchWindowActionDelegate {
	private IWorkbenchWindow window;

	public void dispose() {
		// TODO

	}

	public void init(IWorkbenchWindow window) {
		// TODO
		this.window = window;

	}

	public void run(IAction action) {
		// TODO
		FirstDialog dg = new FirstDialog(window.getShell());
		dg.open();

	}

	public void selectionChanged(IAction action, ISelection selection) {
		// TODO

	}

}

 

2) 双击 plugin.xml  打开 Extensions 编辑窗口，点击 "All Extensions" 下的 "Add..." 打开 Extension 选择窗口，并选择 org.eclipse.ui.actionSets, 如下图：

 

3) 回到 Extensions 编辑界面，选中"org.eclipse.ui.actionSets"，并在右侧 "Extension Details" 的 "ID"、"Name" 中输入内容，保存，如下图：

 

4) 点击 "plugin.xml" 选项卡，可以看到该文件中出现了如下代码：

   <extension
         id="hellorcp.actionset"
         name="菜单"
         point="org.eclipse.ui.actionSets">
   </extension>

 

   直接将该片段编辑为如下内容：

   <extension
         id="hellorcp.actionset"
         name="菜单"
         point="org.eclipse.ui.actionSets">
         <actionSet
			description ="第一个扩展" 
            id ="RCP_Start.actionSet1" 
            label ="RCP_Start.actionSet1" 
            visible ="true"> 
         	<action
				class ="hellorcp.action.Action2" 
             	icon ="icons/alt_window_16.gif" 
             	id ="RCP_Start.action2" 
          	    label ="第二个菜单项" 
				menubarPath ="hellorcp.firstmenu/additions" 
              	style ="push" 
                toolbarPath ="additions" 
               	tooltip ="第二个菜单项的按钮" /> 
       </actionSet> 
   </extension>

 

5) 再次切换到 "Extensions" 选项卡，可以看到相应内容也出现了，如下图：

 

6) 运行程序，效果如下图：

注：需要将类 ApplicationWorkbenchWindowAdvisor 方法 preWindowOpen() 中的 configurer.setShowCoolBar(false); 改为 configurer.setShowCoolBar(true); 才会出现该图标菜单。