wfpanel.java

Java写的ERP系统

/******************************************************************************
 * The contents of this file are subject to the   Compiere License  Version 1.1
 * ("License"); You may not use this file except in compliance with the License
 * You may obtain a copy of the License at http://www.compiere.org/license.html
 * Software distributed under the License is distributed on an  "AS IS"  basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
 * the specific language governing rights and limitations under the License.
 * The Original Code is                  Compiere  ERP & CRM  Business Solution
 * The Initial Developer of the Original Code is Jorg Janke  and ComPiere, Inc.
 * Portions created by Jorg Janke are Copyright (C) 1999-2002 Jorg Janke, parts
 * created by ComPiere are Copyright (C) ComPiere, Inc.;   All Rights Reserved.
 * Contributor(s): ______________________________________.
 *****************************************************************************/
package org.compiere.apps.wf;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import java.util.*;
import java.beans.*;

import org.compiere.apps.*;
import org.compiere.util.*;
import org.compiere.model.*;
import org.compiere.plaf.*;
import org.compiere.swing.*;

/**
 *	WorkFlow Panel
 *
 * 	@author 	Jorg Janke
 * 	@version 	$Id: WFPanel.java,v 1.5 2003/02/14 06:44:14 jjanke Exp $
 */
public class WFPanel extends CPanel
	implements PropertyChangeListener, ActionListener, MouseListener
{
	/**
	 * 	Create Workflow Panel
	 * 	@param menu menu
	 */
	public WFPanel (AMenu menu)
	{
		m_menu = menu;
		try
		{
			jbInit();
		}
		catch(Exception e)
		{
			Log.error("WFPanel", e);
		}
	}	//	WFPanel

	/**	Menu Link					*/
	private AMenu		m_menu = null;

	/**	Workflow Model				*/
	private MWorkflow	m_wf = null;
	/**	Context						*/
	private Properties	m_ctx = Env.getCtx();
	/** Active Node					*/
	private WFNode 		m_activeNode = null;
	/**	ReadWrite Mode (see WFNode)	*/
	private boolean		m_readWrite = "Y".equals(Env.getContext(m_ctx, "#CompiereSys"));

	//	IO
	private BorderLayout mainLayout = new BorderLayout();
	private JScrollPane centerScrollPane = new JScrollPane();
	private CPanel southPanel = new CPanel();
	private CPanel centerPanel = new CPanel();
	private BorderLayout southLayout = new BorderLayout();
	private JScrollPane infoScrollPane = new JScrollPane();
	private JTextPane infoTextPane = new JTextPane();
	private CPanel buttonPanel = new CPanel();
	private JButton wfStart = new JButton();
	private JButton wfBack = new JButton();
	private JButton wfNext = new JButton();
	private JButton wfEnd = new JButton();
	//
	private JPopupMenu popup = new JPopupMenu();
	private JMenuItem mZoom = new JMenuItem (Msg.getMsg(Env.getCtx(), "Zoom"));
	private JMenuItem mRefresh = new JMenuItem (Msg.getMsg(Env.getCtx(), "Refresh"));
	private JMenuItem mResetLayout = new JMenuItem ("Reset Layout");
	private JMenuItem mSaveLayout = new JMenuItem ("Save Layout");

	/**
	 * 	Static Init
	 *  <pre>
	 * 		centerScrollPane
	 * 			centerPanel
	 * 		south Panel
	 * 			infoScrollPane
	 * 			buttonPanel
	 * 	</pre>
	 * 	@throws Exception
	 */
	private void jbInit() throws Exception
	{
		this.setLayout(mainLayout);
		CompiereColor.setBackground(this);
		southPanel.setLayout(southLayout);
		//	Center
		this.add(centerScrollPane,  BorderLayout.CENTER);
		centerPanel.setLayout (new WFLayoutManager());
		centerPanel.setBorder (BorderFactory.createEmptyBorder(5,5,5,5));
		centerPanel.setBackground(new Color(236,236,236));
		centerPanel.setOpaque(false);
		centerScrollPane.getViewport().add(centerPanel, null);
		//	Info
		infoScrollPane.getViewport().add(infoTextPane, null);
		infoScrollPane.setPreferredSize(new Dimension(200, 140));
		infoTextPane.setBackground(CompierePLAF.getFieldBackground_Inactive());
		infoTextPane.setEditable(false);
		infoTextPane.setRequestFocusEnabled(false);
		infoTextPane.setContentType("text/html");
		//	South
		this.add(southPanel, BorderLayout.SOUTH);
		southPanel.add(infoScrollPane,  BorderLayout.CENTER);
		southPanel.add(buttonPanel,  BorderLayout.SOUTH);
		//
		wfStart.setIcon(Env.getImageIcon("wfStart24.gif"));
		wfStart.setMargin(new Insets(0, 10, 0, 10));
		wfStart.setRequestFocusEnabled(false);
		wfStart.addActionListener(this);
		wfStart.setToolTipText(Msg.getMsg(m_ctx, "WFStart"));
		wfBack.setIcon(Env.getImageIcon("wfBack24.gif"));
		wfBack.setMargin(new Insets(0, 15, 0, 15));
		wfBack.setRequestFocusEnabled(false);
		wfBack.addActionListener(this);
		wfBack.setToolTipText(Msg.getMsg(m_ctx, "WFPrevious"));
		wfNext.setIcon(Env.getImageIcon("wfNext24.gif"));
		wfNext.setMargin(new Insets(0, 15, 0, 15));
		wfNext.setRequestFocusEnabled(false);
		wfNext.addActionListener(this);
		wfNext.setToolTipText(Msg.getMsg(m_ctx, "WFNext"));
		wfEnd.setIcon(Env.getImageIcon("wfEnd24.gif"));
		wfEnd.setMargin(new Insets(0, 10, 0, 10));
		wfEnd.setRequestFocusEnabled(false);
		wfEnd.addActionListener(this);
		wfEnd.setToolTipText(Msg.getMsg(m_ctx, "WFExit"));
		buttonPanel.add(wfStart, null);
		buttonPanel.add(wfBack, null);
		buttonPanel.add(wfNext, null);
		buttonPanel.add(wfEnd, null);

		//	Popup Menu
		centerPanel.addMouseListener(this);
		mZoom.addActionListener(this);
		popup.add(mZoom);
		mRefresh.addActionListener(this);
		popup.add(mRefresh);
		if (m_readWrite)
		{
			mResetLayout.addActionListener(this);
			popup.add(mResetLayout);
			mSaveLayout.addActionListener(this);
			popup.add(mSaveLayout);
		}
	}	//	jbInit

	/*************************************************************************/

	/**
	 * 	Load Workflow & Nodes
	 * 	@param AD_Workflow_ID ID
	 */
	public void load (int AD_Workflow_ID)
	{
		Log.trace(Log.l4_Data, "WFPanel.load " + AD_Workflow_ID);
		m_wf = new MWorkflow (Env.getCtx(), AD_Workflow_ID);
		centerPanel.removeAll();
		//	Add Nodes for Paint
		MWFNode[] nodes = m_wf.getNodes(true);
		for (int i = 0; i < nodes.length; i++)
		{
			WFNode wf = new WFNode(nodes[i]);
			wf.addPropertyChangeListener(WFNode.PROPERTY_SELECTED, this);
			centerPanel.add (wf);
			//	Add Lines
			MWFNodeNext[] nexts = nodes[i].getNextNodes();
			for (int j = 0; j < nexts.length; j++)
				centerPanel.add (new WFLine (nexts[j]));
		}
		//	Info Text
		StringBuffer msg = new StringBuffer("<HTML>");
		msg.append("<H2>").append(m_wf.getName(true)).append("</H2>");
		String s = m_wf.getDescription(true);
		if (s != null && s.length() > 0)
			msg.append("<B>").append(s).append("</B>");
		s = m_wf.getHelp(true);
		if (s != null && s.length() > 0)
			msg.append("<BR>").append(s);
		msg.append("</HTML>");
		infoTextPane.setText (msg.toString());
		infoTextPane.setCaretPosition(0);

		//	Layout
		centerPanel.validate();
		centerPanel.repaint();
		validate();
	}	//	load

	/**
	 * 	Property Change Listener
	 * 	@param e event
	 */
	public void propertyChange (PropertyChangeEvent e)
	{
		start ((WFNode)e.getSource());
	}	//	propertyChange

	/**
	 * 	Action Listener
	 * 	@param e event
	 */
	public void actionPerformed (ActionEvent e)
	{
		if (m_wf == null)
			return;

		setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
		//	Popup
		if (e.getSource() == mZoom)
			zoom();
		else if (e.getSource() == mRefresh)
			load(m_wf.getAD_Workflow_ID());
		else if (e.getSource() == mSaveLayout)
			m_wf.save();
		else if (e.getSource() == mResetLayout)
			resetLayout();
		//	Buttons
		else if (e.getSource() == wfStart || m_activeNode == null)
			start (m_wf.getAD_WF_Node_ID());
		else if (e.getSource() == wfBack)
			start (m_wf.getPrevious (m_activeNode.getAD_WF_Node_ID()));
		else if (e.getSource() == wfNext)
			start (m_wf.getNext (m_activeNode.getAD_WF_Node_ID()));
		else if (e.getSource() == wfEnd)
			start (m_wf.getLast (m_activeNode.getAD_WF_Node_ID()));
		//
		setCursor(Cursor.getDefaultCursor());
	}	//	actionPerformed

	/**
	 * 	Display Menu
	 * 	@param e event
	 */
	public void mouseClicked (MouseEvent e)
	{
		if (SwingUtilities.isRightMouseButton(e))
		{
			popup.show(centerPanel, e.getX(), e.getY());
		}
	}	//	mouseClicked
	public void mousePressed(MouseEvent e)	{}
	public void mouseReleased(MouseEvent e)	{}
	public void mouseEntered(MouseEvent e)	{}
	public void mouseExited(MouseEvent e)	{}

	/*************************************************************************/

	/**
	 * 	Start Node
	 * 	@param node node
	 */
	public void start (WFNode node)
	{
		if (m_activeNode != null)
			m_activeNode.setSelected(false);
		//	Prepare
		node.setSelected(true);
		MWFNode model = node.getModel();
		//	Info Text
		StringBuffer msg = new StringBuffer("<HTML>");
		msg.append("<H2>").append(model.getName(true)).append("</H2>");
		String s = model.getDescription(true);
		if (s != null && s.length() > 0)
			msg.append("<B>").append(s).append("</B>");
		s = model.getHelp(true);
		if (s != null && s.length() > 0)
			msg.append("<BR>").append(s);
		msg.append("</HTML>");
		infoTextPane.setText (msg.toString());
		infoTextPane.setCaretPosition(0);

		//	Load Window
		(new AMenuStartItem(model.getAD_WF_Node_ID(), false, model.getName(true), m_menu)).start();		//	async load
		//
		m_activeNode = node;
		//
		boolean first = m_wf.isFirst(m_activeNode.getAD_WF_Node_ID());
		boolean last = m_wf.isLast(m_activeNode.getAD_WF_Node_ID());
		wfStart.setEnabled(!first);
		wfBack.setEnabled(!first);
		wfNext.setEnabled(!last);
		wfEnd.setEnabled(!last);
	}	//	start

	/**
	 * 	Start Node
	 * 	@param AD_WF_Node_ID node id
	 */
	public void start (int AD_WF_Node_ID)
	{
		if (AD_WF_Node_ID == 0)
			return;
		//
		for (int i = 0; i < centerPanel.getComponentCount(); i++)
		{
			Component comp = centerPanel.getComponent(i);
			if (comp instanceof WFNode)
			{
				WFNode node = (WFNode)comp;
				if (node.getAD_WF_Node_ID() == AD_WF_Node_ID)
				{
					start (node);
					return;
				}
			}	//	WFNode
		}	//	for all components
	}	//	start

	/**
	 * 	Reset Layout
	 */
	public void resetLayout()
	{
		Point p0 = new Point (0,0);
		for (int i = 0; i < centerPanel.getComponentCount(); i++)
		{
			Component comp = centerPanel.getComponent(i);
			comp.setLocation(p0);
		}
		centerPanel.doLayout();
	}	//	resetLayout

	/**
	 * 	Zoom to WorkFlow
	 */
	private void zoom()
	{
		int AD_Window_ID = 113;
		MQuery query = null;
		if (m_wf != null)
			query = MQuery.getEqualQuery("AD_Workflow_ID", m_wf.getAD_Workflow_ID());
		AWindow frame = new AWindow();
		if (!frame.initWindow (AD_Window_ID, query, false))
			return;
		AEnv.showCenterScreen(frame);
		frame = null;
	}	//	zoom

	/**
	 * 	String Representation
	 * 	@return info
	 */
	public String toString()
	{
		StringBuffer sb = new StringBuffer("WFPanel[");
		if (m_wf != null)
			sb.append(m_wf.getAD_Workflow_ID());
		sb.append("]");
		return sb.toString();
	}	//	toString

	/*************************************************************************/

	/**
	 * 	Test
	 * 	@param args ignored
	 */
	public static void main (String[] args)
	{
		org.compiere.Compiere.startupClient();
		JFrame jf = new JFrame ("WF");
		WFPanel pp = new WFPanel(null);
		pp.load(101);
		jf.getContentPane().add (pp);
		jf.pack();
		jf.show();
	}	//	main

}	//	WFPanel