calculator.java

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/******************************************************************************
 * 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 Smart Business Solution. The Initial
 * Developer of the Original Code is Jorg Janke. Portions created by Jorg Janke
 * are Copyright (C) 1999-2005 Jorg Janke.
 * All parts are Copyright (C) 1999-2005 ComPiere, Inc.  All Rights Reserved.
 * Contributor(s): ______________________________________.
 *****************************************************************************/
package org.compiere.grid.ed;

import java.awt.*;
import java.awt.event.*;
import java.math.*;
import java.sql.*;
import java.text.*;
import java.util.*;
import java.util.logging.*;
import javax.swing.*;

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

/**
 *  Calculator with currency conversion
 *
 *  @author 	Jorg Janke
 *  @version 	$Id: Calculator.java,v 1.13 2006/01/28 01:29:11 jjanke Exp $
 */
public final class Calculator extends CDialog
	implements ActionListener, KeyListener
{
	/**
	 *	Create Calculator
	 * 	@param frame parent
	 * 	@param title title
	 * 	@param displayType date or datetime or time
	 * 	@param format display format
	 * 	@param number initial amount
	 */
	public Calculator(Frame frame, String title, int displayType,
		DecimalFormat format, BigDecimal number)
	{
		super(frame, title, true);
		setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
		//  Get WindowNo for Currency
		m_WindowNo = Env.getWindowNo(frame);
		//
		m_DisplayType = displayType;
		if (!DisplayType.isNumeric(m_DisplayType))
			m_DisplayType = DisplayType.Number;
		//
		m_format = format;
		if (m_format == null)
			m_format = DisplayType.getNumberFormat(m_DisplayType);
		//
		m_number = number;
		if (m_number == null)
			m_number = new BigDecimal(0.0);
		//
		try
		{
			jbInit();
			finishSetup();
		}
		catch(Exception ex)
		{
			log.log(Level.SEVERE, "Calculator" + ex);
		}
	}	//	Calculator

	/**
	 *  Abbreviated  Constructor
	 * 	@param frame parent
	 */
	public Calculator(Frame frame)
	{
		this (frame, Msg.getMsg(Env.getCtx(), "Calculator"), DisplayType.Number, null, null);
	}   //  Calculator

	/**
	 *  Abbreviated  Constructor
	 * 	@param frame parent
	 * 	@param number initial amount
	 */
	public Calculator(Frame frame, BigDecimal number)
	{
		this (frame, Msg.getMsg(Env.getCtx(), "Calculator"), DisplayType.Number, null, number);
	}   //  Calculator

	private BigDecimal		m_number;			//	the current number
	private String			m_display = "";		//	what is displayed
	private int 			m_DisplayType;
	private DecimalFormat 	m_format;
	private int				m_WindowNo;
	private boolean		    m_abort = true;
	private boolean			m_currencyOK = false;

	private final static String OPERANDS = "/*-+%";
	private char			m_decimal = '.';
	/**	Logger			*/
	private static CLogger log = CLogger.getCLogger(Calculator.class);
	//
	private CPanel mainPanel = new CPanel();
	private CPanel displayPanel = new CPanel();
	private BorderLayout mainLayout = new BorderLayout();
	private CPanel keyPanel = new CPanel();
	private JLabel display = new JLabel();
	private BorderLayout displayLayout = new BorderLayout();
	private JButton b7 = new JButton();
	private JButton b8 = new JButton();
	private JButton b9 = new JButton();
	private JButton b4 = new JButton();
	private JButton b5 = new JButton();
	private JButton b6 = new JButton();
	private JButton b1 = new JButton();
	private JButton b2 = new JButton();
	private JButton b3 = new JButton();
	private GridLayout keyLayout = new GridLayout();
	private JButton bCur = new JButton();
	private JButton bC = new JButton();
	private JButton bDiv = new JButton();
	private JButton bM = new JButton();
	private JButton bMin = new JButton();
	private JButton bProc = new JButton();
	private JButton bAC = new JButton();
	private JButton bResult = new JButton();
	private JButton bDec = new JButton();
	private JButton b0 = new JButton();
	private JButton bPlus = new JButton();
	private CPanel bordPanel = new CPanel();
	private CPanel currencyPanel = new CPanel();
	private BorderLayout bordLayout = new BorderLayout();
	private JComboBox curFrom = new JComboBox();
	private JComboBox curTo = new JComboBox();
	private JLabel curLabel = new JLabel();
	private FlowLayout currencyLayout = new FlowLayout();

	/**
	 *	Static init
	 * 	@throws Exception
	 */
	void jbInit() throws Exception
	{
		mainPanel.setLayout(mainLayout);
		displayPanel.setLayout(displayLayout);
		keyPanel.setLayout(keyLayout);
		mainLayout.setHgap(2);
		mainLayout.setVgap(2);
		mainPanel.setBorder(BorderFactory.createLoweredBevelBorder());
		mainPanel.addKeyListener(this);
		display.setBackground(Color.white);
		display.setFont(new java.awt.Font("SansSerif", 0, 14));
		display.setBorder(BorderFactory.createLoweredBevelBorder());
		display.setText("0");
		display.setHorizontalAlignment(SwingConstants.RIGHT);
		b7.setText("7");
		b8.setText("8");
		b9.setText("9");
		b4.setText("4");
		b5.setText("5");
		b6.setText("6");
		b1.setText("1");
		b2.setText("2");
		b3.setText("3");
		keyLayout.setColumns(5);
		keyLayout.setHgap(3);
		keyLayout.setRows(4);
		keyLayout.setVgap(3);
		bCur.setForeground(Color.yellow);
		bCur.setToolTipText(Msg.getMsg(Env.getCtx(), "CurrencyConversion"));
		bCur.setText("$");
		bC.setForeground(Color.red);
		bC.setText("C");
		bDiv.setForeground(Color.blue);
		bDiv.setText("/");
		bM.setForeground(Color.blue);
		bM.setText("*");
		bMin.setForeground(Color.blue);
		bMin.setText("-");
		bProc.setForeground(Color.blue);
		bProc.setText("%");
		bAC.setForeground(Color.red);
		bAC.setText("AC");
		bResult.setForeground(Color.green);
		bResult.setText("=");
		bDec.setText(".");
		b0.setText("0");
		bPlus.setForeground(Color.blue);
		bPlus.setText("+");
		bordPanel.setLayout(bordLayout);
		curLabel.setHorizontalAlignment(SwingConstants.CENTER);
		curLabel.setHorizontalTextPosition(SwingConstants.CENTER);
		curLabel.setText(" >> ");
		currencyPanel.setLayout(currencyLayout);
		bordLayout.setHgap(2);
		bordLayout.setVgap(2);
		displayLayout.setHgap(2);
		displayLayout.setVgap(2);
		currencyLayout.setHgap(3);
		currencyLayout.setVgap(2);
		displayPanel.setBackground(Color.white);
		getContentPane().add(mainPanel);
		mainPanel.add(displayPanel, BorderLayout.NORTH);
		displayPanel.add(display, BorderLayout.CENTER);
		mainPanel.add(bordPanel, BorderLayout.CENTER);
		bordPanel.add(currencyPanel, BorderLayout.NORTH);
		currencyPanel.add(curFrom, null);
		currencyPanel.add(curLabel, null);
		currencyPanel.add(curTo, null);
		bordPanel.add(keyPanel, BorderLayout.CENTER);
		keyPanel.add(bAC, null);
		keyPanel.add(b7, null);
		keyPanel.add(b8, null);
		keyPanel.add(b9, null);
		keyPanel.add(bM, null);
		keyPanel.add(bC, null);
		keyPanel.add(b4, null);
		keyPanel.add(b5, null);
		keyPanel.add(b6, null);
		keyPanel.add(bDiv, null);
		keyPanel.add(bProc, null);
		keyPanel.add(b1, null);
		keyPanel.add(b2, null);
		keyPanel.add(b3, null);
		keyPanel.add(bMin, null);
		keyPanel.add(bCur, null);
		keyPanel.add(b0, null);
		keyPanel.add(bDec, null);
		keyPanel.add(bResult, null);
		keyPanel.add(bPlus, null);
	}	//	jbInit

	/**
	 *	Finish Setup
	 */
	private void finishSetup()
	{
		Insets in = new Insets(2, 2, 2, 2);

		//	For all buttons
		Component[] comp = keyPanel.getComponents();
		for (int i = 0; i < comp.length; i++)
		{
			if (comp[i] instanceof JButton)
			{
				JButton b = (JButton)comp[i];
				b.setMargin(in);
				b.addActionListener(this);
				b.addKeyListener(this);
			}
		}
		//	Currency
		toggleCurrency();

		//	Format setting
		m_decimal = m_format.getDecimalFormatSymbols().getDecimalSeparator();

		//	display start number
		m_display = m_format.format(m_number);
		display.setText(m_display);
	}	//	finishSetup

	/**
	 *	Action Listener
	 * 	@param e event
	 */
	public void actionPerformed(ActionEvent e)
	{
		//	Handle Button input
		if (e.getSource() instanceof JButton)
		{
			String cmd = e.getActionCommand();
			if (cmd != null && cmd.length() > 0)
				handleInput(cmd.charAt(0));
		}
		//	Convert Amount
		else if (e.getSource() == curTo)
		{
			KeyNamePair p = (KeyNamePair)curFrom.getSelectedItem();
			int curFromID = p.getKey();
			p = (KeyNamePair)curTo.getSelectedItem();
			int curToID = p.getKey();
			//	convert
			int AD_Client_ID = Env.getAD_Client_ID(Env.getCtx());
			int AD_Org_ID = Env.getAD_Org_ID(Env.getCtx());
			m_number = MConversionRate.convert(Env.getCtx(),
				evaluate(), curFromID, curToID, AD_Client_ID, AD_Org_ID);
			m_display = m_format.format(m_number);
			display.setText(m_display);
			curFrom.setSelectedItem(p);
		}
	}	//	actionPerformed

	/**
	 *	handle input
	 * 	@param c input character
	 */
	public void handleInput(char c)
	{
	//	System.out.println("Input: " + c);
		switch (c)
		{
			//	Number		===============================
			case '0':		case '1':		case '2':
			case '3':		case '4':		case '5':