/* Copyright (c) 2010, Carl Burch. License information is located in the
* com.cburch.logisim.Main source code and at www.cburch.com/logisim/. */
package com.cburch.logisim.prefs;
import java.util.prefs.PreferenceChangeEvent;
import java.util.prefs.Preferences;
class PrefMonitorInt extends AbstractPrefMonitor<Integer> {
private int dflt;
private int value;
PrefMonitorInt(String name, int dflt) {
super(name);
this.dflt = dflt;
this.value = dflt;
Preferences prefs = AppPreferences.getPrefs();
set(Integer.valueOf(prefs.getInt(name, dflt)));
prefs.addPreferenceChangeListener(this);
}
public Integer get() {
return Integer.valueOf(value);
}
public void set(Integer newValue) {
int newVal = newValue.intValue();
if (value != newVal) {
AppPreferences.getPrefs().putInt(getIdentifier(), newVal);
}
}
public void preferenceChange(PreferenceChangeEvent event) {
Preferences prefs = event.getNode();
String prop = event.getKey();
String name = getIdentifier();
if (prop.equals(name)) {
int oldValue = value;
int newValue = prefs.getInt(name, dflt);
if (newValue != oldValue) {
value = newValue;
AppPreferences.firePropertyChange(name,
Integer.valueOf(oldValue), Integer.valueOf(newValue));
}
}
}
}