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/*
* Copyright 2002 Phil Burk, Mobileer Inc
*
* 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 com.jsyn.swing;
import javax.swing.DefaultBoundedRangeModel;
/**
* Double precision data model for sliders and knobs. Maps integer range info to a double value.
*
* @author Phil Burk, (C) 2002 SoftSynth.com, PROPRIETARY and CONFIDENTIAL
*/
public class DoubleBoundedRangeModel extends DefaultBoundedRangeModel {
private static final long serialVersionUID = 284361767102120148L;
protected String name;
private double dmin;
private double dmax;
public DoubleBoundedRangeModel(String name, int resolution, double dmin, double dmax,
double dval) {
this.name = name;
this.dmin = dmin;
this.dmax = dmax;
setMinimum(0);
setMaximum(resolution);
setDoubleValue(dval);
}
public boolean equivalentTo(Object other) {
if (!(other instanceof DoubleBoundedRangeModel))
return false;
DoubleBoundedRangeModel otherModel = (DoubleBoundedRangeModel) other;
return (getValue() == otherModel.getValue());
}
/** Set name of value. This may be used in labels or when saving the value. */
public void setName(String name) {
this.name = name;
}
public String getName() {
return name;
}
public double getDoubleMinimum() {
return dmin;
}
public double getDoubleMaximum() {
return dmax;
}
public double sliderToDouble(int sliderValue) {
double doubleMin = getDoubleMinimum();
return doubleMin + ((getDoubleMaximum() - doubleMin) * sliderValue / getMaximum());
}
public int doubleToSlider(double dval) {
double doubleMin = getDoubleMinimum();
// TODO consider using Math.floor() instead of (int) if not too slow.
return (int) Math.round(getMaximum() * (dval - doubleMin)
/ (getDoubleMaximum() - doubleMin));
}
public double getDoubleValue() {
return sliderToDouble(getValue());
}
public void setDoubleValue(double dval) {
setValue(doubleToSlider(dval));
}
}
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