llvm-gcc-4.0/libjava/javax/swing/SpinnerNumberModel.java - llvm-archive - Git at Google

 /* SpinnerNumberModel.java --
    Copyright (C) 2002, 2004 Free Software Foundation, Inc.

 This file is part of GNU Classpath.

 GNU Classpath is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 2, or (at your option)
 any later version.

 GNU Classpath is distributed in the hope that it will be useful, but
 WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with GNU Classpath; see the file COPYING.  If not, write to the
 Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
 02111-1307 USA.

 Linking this library statically or dynamically with other modules is
 making a combined work based on this library.  Thus, the terms and
 conditions of the GNU General Public License cover the whole
 combination.

 As a special exception, the copyright holders of this library give you
 permission to link this library with independent modules to produce an
 executable, regardless of the license terms of these independent
 modules, and to copy and distribute the resulting executable under
 terms of your choice, provided that you also meet, for each linked
 independent module, the terms and conditions of the license of that
 module.  An independent module is a module which is not derived from
 or based on this library.  If you modify this library, you may extend
 this exception to your version of the library, but you are not
 obligated to do so.  If you do not wish to do so, delete this
 exception statement from your version. */

 package javax.swing;

 import java.io.Serializable;

 /**
  * SpinnerNumberModel
  *
  * @author Ka-Hing Cheung
  * @version 1.0
  */
 public class SpinnerNumberModel extends AbstractSpinnerModel
   implements Serializable
 {
   /**
    * For compatability with Sun's JDK
    */
   private static final long serialVersionUID = 7279176385485777821L;

   /** DOCUMENT ME! */
   private Number value;

   /** DOCUMENT ME! */
   private Comparable minimum;

   /** DOCUMENT ME! */
   private Comparable maximum;

   /** DOCUMENT ME! */
   private Number stepSize;

   /**
    * Creates a <code>SpinnerNumberModel</code> with initial value 0, step 1,
    * and no maximum nor minimum.
    */
   public SpinnerNumberModel()
   {
     this(new Integer(0), null, null, new Integer(1));
   }

   /**
    * Creates a <code>SpinnerNumberModel</code> with double precision
    *
    * @param value the initial value
    * @param minimum the minimum value
    * @param maximum the maximum value
    * @param stepSize the step size
    * @throws IllegalArgumentException if minimum &lt;= value &lt;= maximum does not
    *                                  hold
    */
   public SpinnerNumberModel(double value, double minimum, double maximum,
                             double stepSize)
   {
     this(new Double(value), new Double(minimum), new Double(maximum),
          new Double(stepSize));
   }

   /**
    * Creates a <code>SpinnerNumberModel</code> with integer precision
    *
    * @param value the initial value
    * @param minimum the minimum value
    * @param maximum the maximum value
    * @param stepSize the step size
    * @throws IllegalArgumentException if minimum &lt;= value &lt;= maximum does not
    *                                  hold
    */
   public SpinnerNumberModel(int value, int minimum, int maximum, int stepSize)
   {
     this(new Integer(value), new Integer(minimum), new Integer(maximum),
          new Integer(stepSize));
   }

   /**
    * Creates a <code>SpinnerNumberModel</code> with <code>Number</code>s and
    * <code>Comparable</code>s.
    *
    * @param value the initial value
    * @param minimum the minimum value, if null there's no minimum
    * @param maximum the maximum value, if null there's no maximum
    * @param stepSize the step size
    *
    * @throws IllegalArgumentException if minimum &lt;= value &lt;= maximum
    *         does not hold
    */
   public SpinnerNumberModel(Number value, Comparable minimum,
                             Comparable maximum, Number stepSize)
   {
     if (stepSize == null)
       throw new IllegalArgumentException("stepSize may not be null");
     if (value == null)
       throw new IllegalArgumentException("value may not be null");
     if (minimum != null)
       {
 	if (minimum.compareTo(value) > 0)
 	  throw new IllegalArgumentException("minimum is not <= value");
       }
     else
       minimum = new Comparable()
 	  {
 	    public int compareTo(Object obj)
 	    {
 	      return -1;
 	    }
 	  };


     if (maximum != null)
       {
 	if (maximum.compareTo(value) < 0)
 	  throw new IllegalArgumentException("maximum is not >= value");
       }
     else
       maximum = new Comparable()
 	  {
 	    public int compareTo(Object obj)
 	    {
 	      return 1;
 	    }
 	  };


     this.value = value;
     this.stepSize = stepSize;
     this.minimum = minimum;
     this.maximum = maximum;
   }

   /**
    * Sets the new value and fire a change event
    *
    * @param value the new value
    *
    * @throws IllegalArgumentException if minimum &lt;= value &lt;= maximum
    *         does not hold
    */
   public void setValue(Object value)
   {
     if (! (value instanceof Number))
       throw new IllegalArgumentException("value must be a Number");

     this.value = (Number) value;
     fireStateChanged();
   }

   /**
    * Gets the current value
    *
    * @return the current value
    */
   public Object getValue()
   {
     return value;
   }

   /**
    * Gets the next value without changing the current value, or null if the
    * current value is maximum.
    *
    * @return the next value
    */
   public Object getNextValue()
   {
     Number num;

     if (value instanceof Double)
       num = new Double(value.doubleValue() + stepSize.doubleValue());
     else if (value instanceof Float)
       num = new Double(value.floatValue() + stepSize.floatValue());
     else if (value instanceof Long)
       num = new Long(value.longValue() + stepSize.longValue());
     else if (value instanceof Integer)
       num = new Integer(value.intValue() + stepSize.intValue());
     else if (value instanceof Short)
       num = new Short((short) (value.shortValue() + stepSize.shortValue()));
     else
       num = new Byte((byte) (value.byteValue() + stepSize.byteValue()));

     return maximum.compareTo(num) >= 0 ? num : null;
   }

   /**
    * Gets the previous value without changing the current value, or null if
    * the current value is minimum.
    *
    * @return the previous value
    */
   public Object getPreviousValue()
   {
     Number num;

     if (value instanceof Double)
       num = new Double(value.doubleValue() - stepSize.doubleValue());
     else if (value instanceof Float)
       num = new Double(value.floatValue() - stepSize.floatValue());
     else if (value instanceof Long)
       num = new Long(value.longValue() - stepSize.longValue());
     else if (value instanceof Integer)
       num = new Integer(value.intValue() - stepSize.intValue());
     else if (value instanceof Short)
       num = new Short((short) (value.shortValue() - stepSize.shortValue()));
     else
       num = new Byte((byte) (value.byteValue() - stepSize.byteValue()));

     return minimum.compareTo(num) <= 0 ? num : null;
   }

   /**
    * DOCUMENT ME!
    *
    * @return DOCUMENT ME!
    */
   public Number getNumber()
   {
     return value;
   }

   public Comparable getMinimum()
   {
     return minimum;
   }

   public void setMinimum(Comparable newMinimum)
   {
     if (minimum != newMinimum)
       {
 	minimum = newMinimum;
 	fireStateChanged();
       }
   }

   public Comparable getMaximum()
   {
     return maximum;
   }

   public void setMaximum(Comparable newMaximum)
   {
     if (maximum != newMaximum)
       {
 	maximum = newMaximum;
 	fireStateChanged();
       }
   }

   public Number getStepSize()
   {
     return stepSize;
   }

   public void setStepSize(Number newStepSize)
   {
     if (newStepSize == null)
       throw new IllegalArgumentException();

     if (stepSize != newStepSize)
       {
 	stepSize = newStepSize;
 	fireStateChanged();
       }
   }
 }
	/* SpinnerNumberModel.java --
	Copyright (C) 2002, 2004 Free Software Foundation, Inc.

	This file is part of GNU Classpath.

	GNU Classpath is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 2, or (at your option)
	any later version.

	GNU Classpath is distributed in the hope that it will be useful, but
	WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with GNU Classpath; see the file COPYING. If not, write to the
	Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
	02111-1307 USA.

	Linking this library statically or dynamically with other modules is
	making a combined work based on this library. Thus, the terms and
	conditions of the GNU General Public License cover the whole
	combination.

	As a special exception, the copyright holders of this library give you
	permission to link this library with independent modules to produce an
	executable, regardless of the license terms of these independent
	modules, and to copy and distribute the resulting executable under
	terms of your choice, provided that you also meet, for each linked
	independent module, the terms and conditions of the license of that
	module. An independent module is a module which is not derived from
	or based on this library. If you modify this library, you may extend
	this exception to your version of the library, but you are not
	obligated to do so. If you do not wish to do so, delete this
	exception statement from your version. */

	package javax.swing;

	import java.io.Serializable;

	/**
	* SpinnerNumberModel
	*
	* @author Ka-Hing Cheung
	* @version 1.0
	*/
	public class SpinnerNumberModel extends AbstractSpinnerModel
	implements Serializable
	{
	/**
	* For compatability with Sun's JDK
	*/
	private static final long serialVersionUID = 7279176385485777821L;

	/** DOCUMENT ME! */
	private Number value;

	/** DOCUMENT ME! */
	private Comparable minimum;

	/** DOCUMENT ME! */
	private Comparable maximum;

	/** DOCUMENT ME! */
	private Number stepSize;

	/**
	* Creates a <code>SpinnerNumberModel</code> with initial value 0, step 1,
	* and no maximum nor minimum.
	*/
	public SpinnerNumberModel()
	{
	this(new Integer(0), null, null, new Integer(1));
	}

	/**
	* Creates a <code>SpinnerNumberModel</code> with double precision
	*
	* @param value the initial value
	* @param minimum the minimum value
	* @param maximum the maximum value
	* @param stepSize the step size
	* @throws IllegalArgumentException if minimum <= value <= maximum does not
	* hold
	*/
	public SpinnerNumberModel(double value, double minimum, double maximum,
	double stepSize)
	{
	this(new Double(value), new Double(minimum), new Double(maximum),
	new Double(stepSize));
	}

	/**
	* Creates a <code>SpinnerNumberModel</code> with integer precision
	*
	* @param value the initial value
	* @param minimum the minimum value
	* @param maximum the maximum value
	* @param stepSize the step size
	* @throws IllegalArgumentException if minimum <= value <= maximum does not
	* hold
	*/
	public SpinnerNumberModel(int value, int minimum, int maximum, int stepSize)
	{
	this(new Integer(value), new Integer(minimum), new Integer(maximum),
	new Integer(stepSize));
	}

	/**
	* Creates a <code>SpinnerNumberModel</code> with <code>Number</code>s and
	* <code>Comparable</code>s.
	*
	* @param value the initial value
	* @param minimum the minimum value, if null there's no minimum
	* @param maximum the maximum value, if null there's no maximum
	* @param stepSize the step size
	*
	* @throws IllegalArgumentException if minimum <= value <= maximum
	* does not hold
	*/
	public SpinnerNumberModel(Number value, Comparable minimum,
	Comparable maximum, Number stepSize)
	{
	if (stepSize == null)
	throw new IllegalArgumentException("stepSize may not be null");
	if (value == null)
	throw new IllegalArgumentException("value may not be null");
	if (minimum != null)
	{
	if (minimum.compareTo(value) > 0)
	throw new IllegalArgumentException("minimum is not <= value");
	}
	else
	minimum = new Comparable()
	{
	public int compareTo(Object obj)
	{
	return -1;
	}
	};


	if (maximum != null)
	{
	if (maximum.compareTo(value) < 0)
	throw new IllegalArgumentException("maximum is not >= value");
	}
	else
	maximum = new Comparable()
	{
	public int compareTo(Object obj)
	{
	return 1;
	}
	};


	this.value = value;
	this.stepSize = stepSize;
	this.minimum = minimum;
	this.maximum = maximum;
	}

	/**
	* Sets the new value and fire a change event
	*
	* @param value the new value
	*
	* @throws IllegalArgumentException if minimum <= value <= maximum
	* does not hold
	*/
	public void setValue(Object value)
	{
	if (! (value instanceof Number))
	throw new IllegalArgumentException("value must be a Number");

	this.value = (Number) value;
	fireStateChanged();
	}

	/**
	* Gets the current value
	*
	* @return the current value
	*/
	public Object getValue()
	{
	return value;
	}

	/**
	* Gets the next value without changing the current value, or null if the
	* current value is maximum.
	*
	* @return the next value
	*/
	public Object getNextValue()
	{
	Number num;

	if (value instanceof Double)
	num = new Double(value.doubleValue() + stepSize.doubleValue());
	else if (value instanceof Float)
	num = new Double(value.floatValue() + stepSize.floatValue());
	else if (value instanceof Long)
	num = new Long(value.longValue() + stepSize.longValue());
	else if (value instanceof Integer)
	num = new Integer(value.intValue() + stepSize.intValue());
	else if (value instanceof Short)
	num = new Short((short) (value.shortValue() + stepSize.shortValue()));
	else
	num = new Byte((byte) (value.byteValue() + stepSize.byteValue()));

	return maximum.compareTo(num) >= 0 ? num : null;
	}

	/**
	* Gets the previous value without changing the current value, or null if
	* the current value is minimum.
	*
	* @return the previous value
	*/
	public Object getPreviousValue()
	{
	Number num;

	if (value instanceof Double)
	num = new Double(value.doubleValue() - stepSize.doubleValue());
	else if (value instanceof Float)
	num = new Double(value.floatValue() - stepSize.floatValue());
	else if (value instanceof Long)
	num = new Long(value.longValue() - stepSize.longValue());
	else if (value instanceof Integer)
	num = new Integer(value.intValue() - stepSize.intValue());
	else if (value instanceof Short)
	num = new Short((short) (value.shortValue() - stepSize.shortValue()));
	else
	num = new Byte((byte) (value.byteValue() - stepSize.byteValue()));

	return minimum.compareTo(num) <= 0 ? num : null;
	}

	/**
	* DOCUMENT ME!
	*
	* @return DOCUMENT ME!
	*/
	public Number getNumber()
	{
	return value;
	}

	public Comparable getMinimum()
	{
	return minimum;
	}

	public void setMinimum(Comparable newMinimum)
	{
	if (minimum != newMinimum)
	{
	minimum = newMinimum;
	fireStateChanged();
	}
	}

	public Comparable getMaximum()
	{
	return maximum;
	}

	public void setMaximum(Comparable newMaximum)
	{
	if (maximum != newMaximum)
	{
	maximum = newMaximum;
	fireStateChanged();
	}
	}

	public Number getStepSize()
	{
	return stepSize;
	}

	public void setStepSize(Number newStepSize)
	{
	if (newStepSize == null)
	throw new IllegalArgumentException();

	if (stepSize != newStepSize)
	{
	stepSize = newStepSize;
	fireStateChanged();
	}
	}
	}