Jface第三天

主要内容：

     ErrorDialog();

内容：

package com.cmo.mes.dialogutil;

import org.eclipse.core.runtime.Status;
import org.eclipse.jface.dialogs.ErrorDialog;
import org.eclipse.jface.window.ApplicationWindow;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

public class KErrorDialog extends ApplicationWindow {
 final String dummyPlugin = "plugin id";

 public KErrorDialog() {
  super(null);
  // TODO Auto-generated constructor stub
 }

 protected Control createContents(Composite parent) {
  Composite composite = new Composite(parent, SWT.NONE);
  composite.setLayout(new RowLayout(SWT.VERTICAL));
  Button btn = new Button(composite, SWT.NONE);
  btn.setText("打开一人错误");
  btn.addSelectionListener(new SelectionAdapter() {
   public void widgetSelected(SelectionEvent e) {
    Status status = new Status(Status.ERROR, dummyPlugin, 1,
      "未找到该类", new ClassNotFoundException());
    ErrorDialog dlg = new ErrorDialog(Display.getCurrent()
      .getActiveShell(), "提示错误", "装载类时出现错误", status,
      Status.ERROR);
    dlg.open();
   }
   
  });
  return parent;

 }
 public static void main(String[] args)
 {
  KErrorDialog kerror=new KErrorDialog();
  kerror.setBlockOnOpen(true);
  kerror.open();
  Display.getCurrent().dispose();
 }
}

说明：
   ErrorDialog需要用到IStatus类，该类是一个接口，
   实现接口的类有Status和MultiStatus类,
   1。Status可以保存一个错误的状态信息，
   2。MultiStatus可以同时保存多个错误状态信息，

  public  Status(int severity,String pluginId,int code,String message,Throwable EXCEPTION)
   servrity:错误的级别，有Status.INFO,IStatus.ERROR,IStatus.WARNING,IStatus.OK
            Status.CANCEL等，
   pluginId:主要用于eclipse平台中识别插件的唯一标识ID,如果不是在eclipse平台下使用，可以随意设置
           字符，
   code:表示eclipse的插件状态码，
   message:出现该错误时，提示给用户的信息.
   exception: 异常出现的类型

如：
 Status status=new Status(IStatus.WARNING,"PLUGIN_ID",1,"未找到该 类",
                new ClassNot Found Exception());

同时显示多个错误：

  

Composite composite = new Composite(parent, SWT.NONE);
  composite.setLayout(new RowLayout(SWT.VERTICAL));
  Button btn = new Button(composite, SWT.NONE);
  btn.setText("打开一人错误");
  btn.addSelectionListener(new SelectionAdapter() {
   public void widgetSelected(SelectionEvent e) {
    Status status = new Status(IStatus.ERROR, dummyPlugin, 1,
      "未找到该类", new ClassNotFoundException());
    IStatus[] statusesStatus = new IStatus[3];
    statusesStatus[0] = new Status(IStatus.ERROR, dummyPlugin, 1,
      "未找到该类", new ClassNotFoundException());
    statusesStatus[1] = new Status(IStatus.ERROR, dummyPlugin, 1,
      "未找到该类", new FileNotFoundException());
    statusesStatus[2] = new Status(IStatus.ERROR, dummyPlugin, 1,
      "未找到该类", new RuntimeException());
    MultiStatus ms = new MultiStatus(dummyPlugin, IStatus.OK,
      statusesStatus, "test", new Exception());
    keimDialog.openDialog(status);
    keimDialog.openMDialog(ms);
   }

  });

DialogLIB:

import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.MultiStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.dialogs.ErrorDialog;
import org.eclipse.swt.widgets.Display;

public class keimDialog {
 public static void openDialog(Status status) {
  ErrorDialog dlg = new ErrorDialog(
    Display.getCurrent().getActiveShell(),
    "提示错误", "装载类时出现错误",status,
    Status.ERROR);
  dlg.open();
 }

 public static void openMDialog(MultiStatus status) {
  ErrorDialog dlg = new ErrorDialog(
    Display.getCurrent().getActiveShell(),
    "提示错误", "装载类时出现错误",status,
    MultiStatus.WARNING|MultiStatus.ERROR);
  dlg.open();
 }

}