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/*
* Copyright 2000 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.awt.Color;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import javax.swing.JTextField;
import javax.swing.SwingConstants;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
/**
* TextField that turns pink when modified, and white when the value is entered.
*
* @author (C) 2000-2010 Phil Burk, Mobileer Inc
* @version 16
*/
public class DoubleBoundedTextField extends JTextField {
private static final long serialVersionUID = 6882779668177620812L;
boolean modified = false;
int numCharacters;
private DoubleBoundedRangeModel model;
public DoubleBoundedTextField(DoubleBoundedRangeModel pModel, int numCharacters) {
super(numCharacters);
this.model = pModel;
this.numCharacters = numCharacters;
setHorizontalAlignment(SwingConstants.LEADING);
setValue(model.getDoubleValue());
addKeyListener(new KeyAdapter() {
@Override
public void keyTyped(KeyEvent e) {
if (e.getKeyChar() == '\n') {
model.setDoubleValue(getValue());
} else {
markDirty();
}
}
});
model.addChangeListener(new ChangeListener() {
@Override
public void stateChanged(ChangeEvent e) {
setValue(model.getDoubleValue());
}
});
}
private void markDirty() {
modified = true;
setBackground(Color.pink);
repaint();
}
private void markClean() {
modified = false;
setBackground(Color.white);
setCaretPosition(0);
repaint();
}
@Override
public void setText(String text) {
markDirty();
super.setText(text);
}
private double getValue() throws NumberFormatException {
double val = Double.valueOf(getText()).doubleValue();
markClean();
return val;
}
private void setValue(double value) {
super.setText(String.format("%6.4f", value));
markClean();
}
}
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