From c8875fb97fc03779a5bba09872227b1d08e5d52a Mon Sep 17 00:00:00 2001 From: tromey Date: Sat, 16 Jul 2005 00:30:23 +0000 Subject: Initial revision git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@102074 138bc75d-0d04-0410-961f-82ee72b054a4 --- .../classpath/javax/swing/SpinnerNumberModel.java | 298 +++++++++++++++++++++ 1 file changed, 298 insertions(+) create mode 100644 libjava/classpath/javax/swing/SpinnerNumberModel.java (limited to 'libjava/classpath/javax/swing/SpinnerNumberModel.java') diff --git a/libjava/classpath/javax/swing/SpinnerNumberModel.java b/libjava/classpath/javax/swing/SpinnerNumberModel.java new file mode 100644 index 00000000000..2274c9ec038 --- /dev/null +++ b/libjava/classpath/javax/swing/SpinnerNumberModel.java @@ -0,0 +1,298 @@ +/* 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., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 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 SpinnerNumberModel with initial value 0, step 1, + * and no maximum nor minimum. + */ + public SpinnerNumberModel() + { + this(new Integer(0), null, null, new Integer(1)); + } + + /** + * Creates a SpinnerNumberModel 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 SpinnerNumberModel 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 SpinnerNumberModel with Numbers and + * Comparables. + * + * @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(); + } + } +} -- cgit v1.2.1