vnumber.java

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	{
		if (m_text == null || m_text.getText() == null || m_text.getText().length() == 0)
			return null;
		String value = m_text.getText();
		//	return 0 if text deleted
		if (value == null || value.length() == 0)
		{
			if (!m_modified)
				return null;
			if (m_displayType == DisplayType.Integer)
				return new Integer(0);
			return Env.ZERO;
		}
		if (value.equals(".") || value.equals(",") || value.equals("-"))
			value = "0";
		try
		{
			Number number = m_format.parse(value);
			value = number.toString();      //	converts it to US w/o thousands
			BigDecimal bd = new BigDecimal(value);
			if (m_displayType == DisplayType.Integer)
				return new Integer(bd.intValue());
			if (bd.signum() == 0)
				return bd;
			return bd.setScale(m_format.getMaximumFractionDigits(), BigDecimal.ROUND_HALF_UP);
		}
		catch (Exception e)
		{
			log.log(Level.SEVERE, "Value=" + value, e);
		}
		if (m_displayType == DisplayType.Integer)
			return new Integer(0);
		return Env.ZERO;
	}	//	getValue

	/**
	 *  Return Display Value
	 *  @return value
	 */
	public String getDisplay()
	{
		return m_text.getText();
	}   //  getDisplay

	/**
	 * 	Get Title
	 *	@return title
	 */
	public String getTitle()
	{
		return m_title;
	}	//	getTitle

	/**
	 * 	Plus - add one.
	 * 	Also sets Value
	 *	@return new value
	 */
	public Object plus()
	{
		Object value = getValue();
		if (value == null)
		{
			if (m_displayType == DisplayType.Integer)
				value = new Integer(0);
			else
				value = Env.ZERO;
		}
		//	Add
		if (value instanceof BigDecimal)
			value = ((BigDecimal)value).add(Env.ONE);
		else
			value = new Integer(((Integer)value).intValue() + 1);
		//
		setValue(value);
		return value;
	}	//	plus
	
	/**
	 * 	Minus - subtract one, but not below minimum.
	 * 	Also sets Value
	 *	@param minimum minimum
	 *	@return new value
	 */
	public Object minus (int minimum)
	{
		Object value = getValue();
		if (value == null)
		{
			if (m_displayType == DisplayType.Integer)
				value = new Integer(minimum);
			else
				value = new BigDecimal(minimum);
			setValue(value);
			return value;
		}
		
		//	Subtract
		if (value instanceof BigDecimal)
		{
			BigDecimal bd = ((BigDecimal)value).subtract(Env.ONE);
			BigDecimal min = new BigDecimal(minimum);
			if (bd.compareTo(min) < 0)
				value = min;
			else
				value = bd;
		}
		else
		{
			int i = ((Integer)value).intValue();
			i--;
			if (i < minimum)
				i = minimum;
			value = new Integer(i);
		}
		//
		setValue(value);
		return value;
	}	//	minus
	
	/**************************************************************************
	 *	Action Listener
	 *  @param e event
	 */
	public void actionPerformed (ActionEvent e)
	{
		log.config(e.getActionCommand());
		if (ValuePreference.NAME.equals(e.getActionCommand()))
		{
			if (MRole.getDefault().isShowPreference())
				ValuePreference.start (m_mField, getValue());
			return;
		}

		if (e.getSource() == m_button)
		{
			m_button.setEnabled(false);
			String str = startCalculator(this, m_text.getText(), m_format, m_displayType, m_title);
			m_text.setText(str);
			m_button.setEnabled(true);
			try
			{
				fireVetoableChange (m_columnName, m_oldText, getValue());
			}
			catch (PropertyVetoException pve)	{}
			m_text.requestFocus();
		}
	}	//	actionPerformed

	/**************************************************************************
	 *	Key Listener Interface
	 *  @param e event
	 */
	public void keyTyped(KeyEvent e)    {}
	public void keyPressed(KeyEvent e)  {}

	/**
	 *	Key Listener.
	 *		- Escape 		- Restore old Text
	 *		- firstChange	- signal change
	 *  @param e event
	 */
	public void keyReleased(KeyEvent e)
	{
		log.finest("Key=" + e.getKeyCode() + " - " + e.getKeyChar()
			+ " -> " + m_text.getText());

		//  ESC
		if (e.getKeyCode() == KeyEvent.VK_ESCAPE)
			m_text.setText(m_initialText);
		m_modified = true;
		m_setting = true;
		try
		{
			if (e.getKeyCode() == KeyEvent.VK_ENTER)	//	10
			{
				fireVetoableChange (m_columnName, m_oldText, getValue());
				fireActionPerformed();
			}
			else	//	indicate change
				fireVetoableChange (m_columnName, m_oldText, null);	
		}
		catch (PropertyVetoException pve)	{}
		m_setting = false;
	}	//	keyReleased

	/**
	 *	Focus Gained
	 *  @param e event
	 */
	public void focusGained (FocusEvent e)
	{
		if (m_text != null)
			m_text.selectAll();
	}	//	focusGained

	/**
	 *	Data Binding to MTable (via GridController.vetoableChange).
	 *  @param e event
	 */
	public void focusLost (FocusEvent e)
	{
	//	log.finest(e.toString());
		//	APanel - Escape
		if (e.getOppositeComponent() instanceof AGlassPane)
		{
			m_text.setText(m_initialText);
			return;
		}
		try
		{
			fireVetoableChange (m_columnName, m_initialText, getValue());
			fireActionPerformed();
		}
		catch (PropertyVetoException pve)	{}
	}   //  focusLost

	/**
	 *	Invalid Entry - Start Calculator
	 *  @param jc parent
	 *  @param value value
	 *  @param format format
	 *  @param displayType display type
	 *  @param title title
	 *  @return value
	 */
	public static String startCalculator(Container jc, String value,
		DecimalFormat format, int displayType, String title)
	{
		log.config("Value=" + value);
		BigDecimal startValue = new BigDecimal(0.0);
		try
		{
			if (value != null && value.length() > 0)
			{
				Number number = format.parse(value);
				startValue = new BigDecimal (number.toString());
			}
		}
		catch (ParseException pe)
		{
			log.info("InvalidEntry - " + pe.getMessage());
		}

		//	Find frame
		Frame frame = Env.getFrame(jc);
		//	Actual Call
		Calculator calc = new Calculator(frame, title,
			displayType, format, startValue);
		AEnv.showCenterWindow(frame, calc);
		BigDecimal result = calc.getNumber();
		log.config( "Result=" + result);
		//
		calc = null;
		if (result != null)
			return format.format(result);
		else
			return value;		//	original value
	}	//	startCalculator

	/**
	 *  Set Field/WindowNo for ValuePreference
	 *  @param mField field
	 */
	public void setField (MField mField)
	{
		m_mField = mField;
		/**
		if (m_mField != null
			&& MRole.getDefault().isShowPreference())
			ValuePreference.addMenu (this, popupMenu);
		**/
	}   //  setField

	
	/**************************************************************************
	 * 	Remove Action Listner
	 * 	@param l Action Listener
	 */
	public void removeActionListener(ActionListener l)
	{
		listenerList.remove(ActionListener.class, l);
	}	//	removeActionListener

	/**
	 * 	Add Action Listner
	 * 	@param l Action Listener
	 */
	public void addActionListener(ActionListener l)
	{
		listenerList.add(ActionListener.class, l);
	}	//	addActionListener

	/**
	 * 	Fire Action Event to listeners
	 */
	protected void fireActionPerformed()
	{
		int modifiers = 0;
		AWTEvent currentEvent = EventQueue.getCurrentEvent();
		if (currentEvent instanceof InputEvent)
			modifiers = ((InputEvent)currentEvent).getModifiers();
		else if (currentEvent instanceof ActionEvent)
			modifiers = ((ActionEvent)currentEvent).getModifiers();
		ActionEvent ae = new ActionEvent (this, ActionEvent.ACTION_PERFORMED,
			"VNumber", EventQueue.getMostRecentEventTime(), modifiers);

		// Guaranteed to return a non-null array
		Object[] listeners = listenerList.getListenerList();
		// Process the listeners last to first, notifying those that are interested in this event
		for (int i = listeners.length-2; i>=0; i-=2)
		{
			if (listeners[i]==ActionListener.class)
			{
				((ActionListener)listeners[i+1]).actionPerformed(ae);
			}
		}
	}	//	fireActionPerformed
	/**/
}	//	VNumber