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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 java.util.Hashtable;
import javax.swing.BorderFactory;
import javax.swing.JLabel;
import javax.swing.JSlider;
import javax.swing.border.TitledBorder;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import com.jsyn.util.NumericOutput;
/**
* Slider that takes a DoubleBoundedRangeModel. It displays the current value in a titled border.
*
* @author Phil Burk, (C) 2002 SoftSynth.com, PROPRIETARY and CONFIDENTIAL
*/
public class DoubleBoundedRangeSlider extends JSlider {
/**
*
*/
private static final long serialVersionUID = -440390322602838998L;
/** Places after decimal point for display. */
private int places;
public DoubleBoundedRangeSlider(DoubleBoundedRangeModel model) {
this(model, 5);
}
public DoubleBoundedRangeSlider(DoubleBoundedRangeModel model, int places) {
super(model);
this.places = places;
setBorder(BorderFactory.createTitledBorder(generateTitleText()));
model.addChangeListener(new ChangeListener() {
@Override
public void stateChanged(ChangeEvent e) {
updateTitle();
}
});
}
protected void updateTitle() {
TitledBorder border = (TitledBorder) getBorder();
if (border != null) {
border.setTitle(generateTitleText());
repaint();
}
}
String generateTitleText() {
DoubleBoundedRangeModel model = (DoubleBoundedRangeModel) getModel();
double val = model.getDoubleValue();
String valText = NumericOutput.doubleToString(val, 0, places);
return model.getName() + " = " + valText;
}
public void makeStandardLabels(int labelSpacing) {
setMajorTickSpacing(labelSpacing / 2);
setLabelTable(createStandardLabels(labelSpacing));
setPaintTicks(true);
setPaintLabels(true);
}
public double nextLabelValue(double current, double delta) {
return current + delta;
}
public void makeLabels(double start, double delta, int places) {
DoubleBoundedRangeModel model = (DoubleBoundedRangeModel) getModel();
// Create the label table
Hashtable<Integer, JLabel> labelTable = new Hashtable<Integer, JLabel>();
double dval = start;
while (dval <= model.getDoubleMaximum()) {
int sliderValue = model.doubleToSlider(dval);
String text = NumericOutput.doubleToString(dval, 0, places);
labelTable.put(new Integer(sliderValue), new JLabel(text));
dval = nextLabelValue(dval, delta);
}
setLabelTable(labelTable);
setPaintLabels(true);
}
}
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