org.uncommons.watchmaker.swing.NumericParameterControl Maven / Gradle / Ivy
// ============================================================================
// Copyright 2006-2009 Daniel W. Dyer
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// ============================================================================
package org.uncommons.watchmaker.swing;
import javax.swing.JSpinner;
import javax.swing.SpinnerNumberModel;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import org.uncommons.maths.number.AdjustableNumberGenerator;
import org.uncommons.maths.number.NumberGenerator;
/**
* A GUI control that allows the user to set/update the value of a
* numeric parameter.
* @param The numeric type of this control (e.g. Integer, Double).
* @author Daniel Dyer
*/
public class NumericParameterControl> implements EvolutionControl
{
private final T defaultValue;
private final JSpinner control;
private final AdjustableNumberGenerator numberGenerator;
public NumericParameterControl(T minimum,
T maximum,
T stepSize,
T initialValue)
{
this.defaultValue = initialValue;
this.numberGenerator = new AdjustableNumberGenerator(this.defaultValue);
control = new JSpinner(new SpinnerNumberModel(initialValue,
minimum,
maximum,
stepSize));
control.addChangeListener(new ChangeListener()
{
public void stateChanged(ChangeEvent changeEvent)
{
@SuppressWarnings("unchecked")
T value = (T) control.getValue();
numberGenerator.setValue(value);
}
});
}
/**
* {@inheritDoc}
*/
public JSpinner getControl()
{
return control;
}
/**
* {@inheritDoc}
*/
public void reset()
{
control.setValue(defaultValue);
control.setEnabled(true);
}
/**
* Returns a number generator that simply returns the current value contained
* in the spinner field.
* @return A number generator that can be used to control an evolutionary program.
*/
public NumberGenerator getNumberGenerator()
{
return numberGenerator;
}
/**
* {@inheritDoc}
*/
public void setDescription(String description)
{
control.setToolTipText(description);
}
}