org.smallmind.swing.spinner.IntegerSpinnerModel Maven / Gradle / Ivy
/*
* Copyright (c) 2007 through 2024 David Berkman
*
* This file is part of the SmallMind Code Project.
*
* The SmallMind Code Project is free software, you can redistribute
* it and/or modify it under either, at your discretion...
*
* 1) The terms of GNU Affero General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at
* your option) any later version.
*
* ...or...
*
* 2) The terms of the Apache License, Version 2.0.
*
* The SmallMind Code Project 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 or Apache License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* and the Apache License along with the SmallMind Code Project. If not, see
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*
* Additional permission under the GNU Affero GPL version 3 section 7
* ------------------------------------------------------------------
* If you modify this Program, or any covered work, by linking or
* combining it with other code, such other code is not for that reason
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package org.smallmind.swing.spinner;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import org.smallmind.nutsnbolts.util.WeakEventListenerList;
public class IntegerSpinnerModel implements EdgeAwareSpinnerModel {
private final WeakEventListenerList listenerList;
private final Integer minimumValue;
private final Integer maximumValue;
private final int increment;
private int value;
public IntegerSpinnerModel (int value, int increment, Integer minimumValue, Integer maximumValue) {
listenerList = new WeakEventListenerList();
this.value = value;
this.increment = increment;
this.minimumValue = minimumValue;
this.maximumValue = maximumValue;
}
public void addChangeListener (ChangeListener changeListener) {
listenerList.addListener(changeListener);
}
public void removeChangeListener (ChangeListener changeListener) {
listenerList.removeListener(changeListener);
}
public Object getMinimumValue () {
return minimumValue;
}
public Object getMaximumValue () {
return maximumValue;
}
public Object getValue () {
return value;
}
public void setValue (Object value) {
ChangeEvent changeEvent;
this.value = (Integer)value;
changeEvent = new ChangeEvent(this);
for (ChangeListener changeListener : listenerList) {
changeListener.stateChanged(changeEvent);
}
}
public Object getNextValue () {
return value + increment;
}
public Object getPreviousValue () {
return value - increment;
}
}