RCP表单编辑器---》一、打开编辑器

1、创建JsEditor.java

package com.testrcp.myrcp.editors;

import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IEditorSite;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.part.EditorPart;

public class JsEditor extends EditorPart{
	//对应plugin.xml指定的id
	public static final String ID = "com.testrcp.myrcp.editors.JsEditor";
	private Text text;
	//编辑器中的内容是否被修改的标志
	private boolean bDirty = false;
	public JsEditor() {
		super();
	}
	//初始化编辑器
	public void init(IEditorSite site, IEditorInput input)throws PartInitException{
		this.setSite(site);//设置site
		this.setInput(input);//设置输入的IEditorInput对象
		this.setPartName(input.getName());//设置编辑器上方显示的名称
	}
	//创建编辑器中的控件
	public void createPartControl(Composite parent) {
		text = new Text(parent, SWT.NONE);
		//当文本框修改时，设定内容被修改过
		text.addModifyListener(new ModifyListener() {
			public void modifyText(ModifyEvent e) {
				if (!isDirty()) {//如果未修改
					setDirty(true);//设置修改
					//更改编辑器的状态
					firePropertyChange(IEditorPart.PROP_DIRTY);
				}
			}
		});
	}
	
	//编辑器关闭时，保存编辑器内容时所调用的方法
	public void doSave(IProgressMonitor monitor) {
		//将保存状态显示在状态栏中
		try {
			monitor.beginTask("保存文件...", 100);
			for (int i = 0; i < 10 && !monitor.isCanceled(); i++) {
				Thread.sleep(500);
				monitor.worked(10);
				double d = (i + 1) / 10d;
				monitor.subTask("已完成" + d * 100 + "%");// 显示任务状态
			}
			monitor.done();
			if (monitor.isCanceled()){
				throw new InterruptedException("取消保存");
			}
		}catch (InterruptedException e) {
			
		}
	}
	
	//另存为调用的方法
	public void doSaveAs() {
		
	}
	
	//判断是否被修改过
	public boolean isDirty() {
		return bDirty;
	}
	
	//是否允许保存
	public boolean isSaveAsAllowed() {
		return true;
	}
	//设置焦点
	public void setFocus() {
		text.setFocus();
	}
	//设置编辑器内容被修改过
	public void setDirty(boolean b) {
		bDirty = b;
	}

　　2、创建JsEditorInput.java

package com.testrcp.myrcp.editors;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IPersistableElement;

import formeditorrcp.Activator;

public class JsEditorInput implements IEditorInput  {
	//输入的字符
	private String input ;
	public JsEditorInput ( String input ){
		this.input = input ;
	}
	//是否将编辑器保存在最近访问记录中
	public boolean exists() {
		return true;
	}
	//输入内容的图标
	public ImageDescriptor getImageDescriptor() {
		return Activator.getImageDescriptor("icons/samples.gif");
	}
	//输入信息的名称
	public String getName() {
		return input;
	}
	//是否可以持久化该编辑器
	public IPersistableElement getPersistable() {
		return null;
	}
	//设置编辑器标签中显示提示信息
	public String getToolTipText() {
		return input;
	}
	//返回与该输入相关的类的对象
	public Object getAdapter(Class adapter) {
		return null;
	}
}

3、创建OpenEditorView.java

package com.testrcp.myrcp.views;

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.List;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.internal.part.NullEditorInput;
import org.eclipse.ui.part.ViewPart;

import com.testrcp.myrcp.editors.JsEditor;
import com.testrcp.myrcp.editors.JsEditorInput;


public class OpenEditorView extends ViewPart  {
	public static final String ID = "com.testrcp.myrcp.views.OpenEditorView";
	public List list;
	public OpenEditorView() {
		super();
	}
	public void createPartControl(Composite parent) {
		list = new List(parent, SWT.NONE);
		list.add("Editor");
		list.add("MutiPage Editor");
		list.add("Form Editor");
		list.add("Master/Detail Page");
		list.addSelectionListener(new SelectionAdapter() {
			public void widgetSelected(SelectionEvent e) {
				String select = list.getSelection()[0];
				// 获得当前激活的IWorkbenchPage对象
				IWorkbenchPage page = getViewSite().getWorkbenchWindow().getActivePage();
				try {
					if (select.equals("Editor")) {// 如果选中的"Editor"一项
						// 创建输入的内容对象
						JsEditorInput editor = new JsEditorInput(select);
						// 打开该编辑器
						page.openEditor(editor, JsEditor.ID);
					}else if (select.equals("MutiPage Editor")) {
						//page.openEditor(new NullEditorInput(), MutiEditorSample.ID);
					}else if (select.equals("Form Editor")) {// 如果选中的"Editor"一项
						//page.openEditor(new NullEditorInput(), MyMutiForm.ID);
					}
				}catch (PartInitException ee) {
					ee.printStackTrace();
				}
			}
		});
	}
	
	public void setFocus() {
		list.setFocus();
	}
	
}

4、在plugin.xml中增加如下代码

<extension point="org.eclipse.ui.views"> 
        <view 
        allowMultiple="false" 
        class="com.testrcp.myrcp.views.OpenEditorView" 
        icon="icons/alt_window16.gif" 
        id="com.testrcp.myrcp.views.OpenEditorView" 
        name="打开编辑器"/> 
    </extension>

5、在透视图中，增加如下代码

public void createInitialLayout(IPageLayout layout) {
		String editorArea = layout.getEditorArea(); 
    //添加树视图 
    layout.addView(OpenEditorView.ID, IPageLayout.LEFT, 0.2f, editorArea); 
}

6、效果如图：

 7、获取源码

链接：https://pan.baidu.com/s/1GjtxKitstcsdX2HvBSfJAg
提取码：oeah