package com.vci.client.workflow.task;

import java.awt.AWTEvent;
import java.awt.Dimension;
import java.awt.Frame;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowEvent;

import javax.swing.DefaultListModel;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JOptionPane;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.ListSelectionModel;
import javax.swing.border.TitledBorder;

import com.vci.client.LogonApplication;
import com.vci.client.ui.exception.VCIException;
import com.vci.client.workflow.commom.Checkableitem;
import com.vci.client.workflow.delegate.ProcessCustomClientDelegate;
import com.vci.corba.common.VCIError;

public class BackTaskDialog extends JDialog {
	private static final long serialVersionUID = 1L;
	public JButton buttonOk = new JButton();
    public JButton buttonCancel = new JButton();
    public boolean flag = false;
    String taskName = "";
    String outcome = "";
    String jbpmDeploymentId = "";
    public String[] userName ;
    
    private JList userList =  new JList();
    private JList nextTaskList = new JList();
    
    Checkableitem[] items = {};
    JScrollPane scrollPanel = new JScrollPane();
	JScrollPane selectScroPanel = new JScrollPane();
	JScrollPane scroll = new JScrollPane();
	private JTextArea descArea;
	private JLabel descLabel;
	private String desc = null;
	String resTask = "";
    public BackTaskDialog(){
    	
    }
    /**
     * 
     * @param frame
     */
	public BackTaskDialog(Frame frame,String jbpmDeploymentId,String taskName,String outcome){
		super(frame, true);
		this.taskName = taskName;
		this.outcome = outcome;
		this.jbpmDeploymentId = jbpmDeploymentId;
		init();
		//激活窗口事件   
        this.enableEvents(AWTEvent.WINDOW_EVENT_MASK);   

	}
	 //重写这个方法   
    @Override  
    protected void processWindowEvent(WindowEvent e) {   
        if (e.getID() == WindowEvent.WINDOW_CLOSING)   
            return; //直接返回，阻止默认动作，阻止窗口关闭   
        super.processWindowEvent(e); //该语句会执行窗口事件的默认动作(如：隐藏)   
    }   
    String[] nextTaskName;
	public void init(){
		int x = (int) (this.getParent().getLocationOnScreen().getX()) + 235;
		int y = (int) (this.getParent().getLocationOnScreen().getY()) + 125;
		this.setLocation(x, y);

		this.setSize(new Dimension(520, 400));
		this.setResizable(false);
		
		

		descLabel = new JLabel("请输入任务描述：");
		descLabel.setBounds(40, 190, 120, 25);

		scroll.setBounds(40, 220, 420, 80);
		descArea = new JTextArea();
		descArea.setLineWrap(true);
		scroll.getViewport().add(descArea);
		
		buttonOk.setText("确定");
		buttonOk.setBounds(new Rectangle(
				170, 320, 60, 25));
		buttonCancel.setText("取消");
		buttonCancel.setBounds(new Rectangle(
				270, 320, 60, 25));
		try {
			nextTaskName = getNextTaskNames(new ProcessCustomClientDelegate(
					LogonApplication.getUserEntityObject()));
			if (nextTaskName.length > 1) {
				fillNextTaskCombox();
				
				scrollPanel.setBounds(40, 10, 400, 150);
				scrollPanel.setBorder(new TitledBorder("回退任务"));
				scrollPanel.getViewport().add(nextTaskList);

				this.add(scrollPanel);
			}
		} catch (VCIError e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (VCIException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
		
		this.setLayout(null);
		this.add(scrollPanel);
		this.add(buttonOk);
		this.add(buttonCancel);
//		this.add(descLabel);
//		this.add(scroll);

		buttonOk.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent arg0) {
				flag = false;
				resTask = (String) nextTaskList.getSelectedValue();
				dispose();
			}
		});
		buttonCancel.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent arg0) {
				flag = true;
				dispose();
			}
		});

	}
	
	private void fillNextTaskCombox() {
		ProcessCustomClientDelegate processCustomClientDelegate = new ProcessCustomClientDelegate(
				LogonApplication.getUserEntityObject());
		try {
			String[] nextTaskName = getNextTaskNames(processCustomClientDelegate);
			DefaultListModel model = new DefaultListModel();

			for (int i = 0; i < nextTaskName.length; i++) {
				model.addElement(nextTaskName[i]);
			}

			nextTaskList.setModel(model);
			nextTaskList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
		} catch (VCIError e) {
			e.printStackTrace();
		} catch (VCIException e) {
			JOptionPane.showMessageDialog(LogonApplication.frame, "该资源数据模板没有配置相应流程，请确认！");
		}
	}

	private String[] getNextTaskNames(
			ProcessCustomClientDelegate processCustomClientDelegate)
			throws VCIException, VCIError {
		// 通过模板找到流程
		String[] nextTaskName = processCustomClientDelegate.getTrainName(
				jbpmDeploymentId,  taskName, outcome);
		return nextTaskName;
	}
	public String[] getUserName(){
		return userName;
	}
	public String getDesc() {
		return desc;
	}
}