4f9533c772
Imported GNU Classpath 0.90 * scripts/makemake.tcl: LocaleData.java moved to gnu/java/locale. * sources.am: Regenerated. * gcj/javaprims.h: Regenerated. * Makefile.in: Regenerated. * gcj/Makefile.in: Regenerated. * include/Makefile.in: Regenerated. * testsuite/Makefile.in: Regenerated. * gnu/java/lang/VMInstrumentationImpl.java: New override. * gnu/java/net/local/LocalSocketImpl.java: Likewise. * gnu/classpath/jdwp/VMMethod.java: Likewise. * gnu/classpath/jdwp/VMVirtualMachine.java: Update to latest interface. * java/lang/Thread.java: Add UncaughtExceptionHandler. * java/lang/reflect/Method.java: Implements GenericDeclaration and isSynthetic(), * java/lang/reflect/Field.java: Likewise. * java/lang/reflect/Constructor.java * java/lang/Class.java: Implements Type, GenericDeclaration, getSimpleName() and getEnclosing*() methods. * java/lang/Class.h: Add new public methods. * java/lang/Math.java: Add signum(), ulp() and log10(). * java/lang/natMath.cc (log10): New function. * java/security/VMSecureRandom.java: New override. * java/util/logging/Logger.java: Updated to latest classpath version. * java/util/logging/LogManager.java: New override. From-SVN: r113887
362 lines
11 KiB
Java
362 lines
11 KiB
Java
/* SpinnerNumberModel.java --
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Copyright (C) 2002, 2004, 2006 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package javax.swing;
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import java.io.Serializable;
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import javax.swing.event.ChangeEvent;
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/**
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* A model used by the {@link JSpinner} component.
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*
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* @author Ka-Hing Cheung
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* @since 1.4
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*/
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public class SpinnerNumberModel extends AbstractSpinnerModel
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implements Serializable
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{
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/**
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* For compatability with Sun's JDK
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*/
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private static final long serialVersionUID = 7279176385485777821L;
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/** The current value. */
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private Number value;
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/** The minimum value (or <code>null</code>). */
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private Comparable minimum;
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/** The maximum value (or <code>null</code>). */
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private Comparable maximum;
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/** The step size. */
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private Number stepSize;
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/**
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* Creates a <code>SpinnerNumberModel</code> with initial value 0, step 1,
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* and no maximum nor minimum.
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*/
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public SpinnerNumberModel()
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{
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this(new Integer(0), null, null, new Integer(1));
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}
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/**
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* Creates a <code>SpinnerNumberModel</code> with double precision.
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*
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* @param value the initial value
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* @param minimum the minimum value
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* @param maximum the maximum value
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* @param stepSize the step size
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* @throws IllegalArgumentException if minimum <= value <= maximum does
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* not hold.
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*/
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public SpinnerNumberModel(double value, double minimum, double maximum,
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double stepSize)
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{
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this(new Double(value), new Double(minimum), new Double(maximum),
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new Double(stepSize));
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}
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/**
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* Creates a <code>SpinnerNumberModel</code> with integer precision.
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*
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* @param value the initial value
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* @param minimum the minimum value
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* @param maximum the maximum value
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* @param stepSize the step size
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* @throws IllegalArgumentException if minimum <= value <= maximum does
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* not hold.
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*/
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public SpinnerNumberModel(int value, int minimum, int maximum, int stepSize)
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{
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this(new Integer(value), new Integer(minimum), new Integer(maximum),
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new Integer(stepSize));
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}
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/**
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* Creates a <code>SpinnerNumberModel</code> with the given attributes. The
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* caller should ensure that both <code>minimum</code> and
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* <code>maximum</code> are serializable.
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*
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* @param value the initial value (<code>null</code> not permitted).
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* @param minimum the minimum value (<code>null</code> permitted).
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* @param maximum the maximum value (<code>null</code> permitted).
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* @param stepSize the step size (<code>null</code> not permitted).
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*
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* @throws IllegalArgumentException if minimum <= value <= maximum
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* does not hold
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* @throws IllegalArgumentException if <code>value</code> is
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* <code>null</code>.
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* @throws IllegalArgumentException if <code>stepSize</code> is
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* <code>null</code>.
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*/
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public SpinnerNumberModel(Number value, Comparable minimum,
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Comparable maximum, Number stepSize)
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{
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if (stepSize == null)
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throw new IllegalArgumentException("stepSize may not be null");
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if (value == null)
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throw new IllegalArgumentException("value may not be null");
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if (minimum != null)
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{
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if (minimum.compareTo(value) > 0)
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throw new IllegalArgumentException("minimum is not <= value");
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}
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if (maximum != null)
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{
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if (maximum.compareTo(value) < 0)
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throw new IllegalArgumentException("maximum is not >= value");
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}
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this.value = value;
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this.stepSize = stepSize;
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this.minimum = minimum;
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this.maximum = maximum;
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}
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/**
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* Sets the current value and, if the new value is different to the old
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* value, sends a {@link ChangeEvent} to all registered listeners.
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*
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* @param value the new value (<code>null</code> not permitted, must be an
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* instance of <code>Number</code>).
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*
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* @throws IllegalArgumentException if <code>value</code> is not an instance
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* of <code>Number</code>.
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*/
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public void setValue(Object value)
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{
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if (! (value instanceof Number))
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throw new IllegalArgumentException("value must be a Number");
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if (!this.value.equals(value))
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{
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this.value = (Number) value;
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fireStateChanged();
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}
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}
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/**
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* Returns the current value, which for this class is always an instance of
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* {@link Number}.
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*
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* @return The current value.
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*
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* @see #getNumber()
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*/
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public Object getValue()
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{
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return value;
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}
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/**
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* Returns the next value, or <code>null</code> if adding the step size to
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* the current value results in a value greater than the maximum value.
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* The current value is not changed.
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*
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* @return The next value, or <code>null</code> if the current value is the
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* maximum value represented by this model.
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*/
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public Object getNextValue()
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{
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Number num;
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if (value instanceof Double)
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num = new Double(value.doubleValue() + stepSize.doubleValue());
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else if (value instanceof Float)
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num = new Double(value.floatValue() + stepSize.floatValue());
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else if (value instanceof Long)
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num = new Long(value.longValue() + stepSize.longValue());
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else if (value instanceof Integer)
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num = new Integer(value.intValue() + stepSize.intValue());
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else if (value instanceof Short)
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num = new Short((short) (value.shortValue() + stepSize.shortValue()));
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else
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num = new Byte((byte) (value.byteValue() + stepSize.byteValue()));
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// check upper bound if set
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if ((maximum != null) && maximum.compareTo(num) < 0)
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num = null;
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return num;
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}
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/**
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* Returns the previous value, or <code>null</code> if subtracting the
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* step size from the current value results in a value less than the minimum
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* value. The current value is not changed.
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*
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* @return The previous value, or <code>null</code> if the current value
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* is the minimum value represented by this model.
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*/
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public Object getPreviousValue()
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{
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Number num;
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if (value instanceof Double)
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num = new Double(value.doubleValue() - stepSize.doubleValue());
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else if (value instanceof Float)
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num = new Double(value.floatValue() - stepSize.floatValue());
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else if (value instanceof Long)
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num = new Long(value.longValue() - stepSize.longValue());
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else if (value instanceof Integer)
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num = new Integer(value.intValue() - stepSize.intValue());
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else if (value instanceof Short)
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num = new Short((short) (value.shortValue() - stepSize.shortValue()));
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else
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num = new Byte((byte) (value.byteValue() - stepSize.byteValue()));
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// check lower bound if set
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if ((minimum != null) && minimum.compareTo(num) > 0)
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num = null;
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return num;
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}
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/**
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* Returns the current value.
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*
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* @return The current value.
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*/
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public Number getNumber()
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{
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return value;
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}
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/**
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* Returns the minimum value, or <code>null</code> if there is no minimum.
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*
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* @return The minimum value.
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*
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* @see #setMinimum(Comparable)
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*/
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public Comparable getMinimum()
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{
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return minimum;
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}
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/**
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* Sets the minimum value and, if the new value is different to the old
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* value, sends a {@link ChangeEvent} to all registered listeners. A
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* <code>null</code> value is interpreted as "no minimum value". No check
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* is made to ensure that the new minimum is less than or equal to the
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* current value, the caller is responsible for ensuring that this
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* relationship holds. In addition, the caller should ensure that
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* <code>newMinimum</code> is {@link Serializable}.
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*
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* @param newMinimum the new minimum value (<code>null</code> permitted).
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*
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* @see #getMinimum()
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*/
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public void setMinimum(Comparable newMinimum)
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{
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if (minimum != null ? !minimum.equals(newMinimum) : newMinimum != null)
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{
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minimum = newMinimum;
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fireStateChanged();
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}
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}
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/**
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* Returns the maximum value, or <code>null</code> if there is no maximum.
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*
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* @return The maximum value.
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*
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* @see #getMinimum()
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* @see #setMaximum(Comparable)
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*/
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public Comparable getMaximum()
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{
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return maximum;
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}
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/**
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* Sets the maximum value and, if the new value is different to the old
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* value, sends a {@link ChangeEvent} to all registered listeners. A
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* <code>null</code> value is interpreted as "no maximum value". No check
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* is made to ensure that the new maximum is greater than or equal to the
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* current value, the caller is responsible for ensuring that this
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* relationship holds. In addition, the caller should ensure that
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* <code>newMaximum</code> is {@link Serializable}.
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*
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* @param newMaximum the new maximum (<code>null</code> permitted).
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*
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* @see #getMaximum()
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*/
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public void setMaximum(Comparable newMaximum)
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{
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if (maximum != null ? !maximum.equals(newMaximum) : newMaximum != null)
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{
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maximum = newMaximum;
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fireStateChanged();
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}
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}
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/**
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* Returns the step size.
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*
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* @return The step size (never <code>null</code>).
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*/
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public Number getStepSize()
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{
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return stepSize;
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}
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/**
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* Sets the step size and, if the new step size is different to the old
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* step size, sends a {@link ChangeEvent} to all registered listeners.
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*
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* @param newStepSize the new step size (<code>null</code> not permitted).
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*
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* @throws IllegalArgumentException if <code>newStepSize</code> is
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* <code>null</code>.
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*/
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public void setStepSize(Number newStepSize)
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{
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if (newStepSize == null)
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throw new IllegalArgumentException();
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if (!stepSize.equals(newStepSize))
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{
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stepSize = newStepSize;
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fireStateChanged();
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}
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}
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}
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