/* Copyright (c) 2001-2009, The HSQL Development Group
* All rights reserved.
*
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* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the HSQL Development Group nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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package org.hsqldb.util;
import java.util.Vector;
import java.awt.Choice;
import java.awt.Color;
/**
* Class declaration
*
*
* @author ulrivo@users
* @version 1.0.0
*/
// a Choice for the GUI which implements ZaurusComponent
//
// in addition to a Choice, a ZaurusChoice saves a vector for values of the items
// for instance: in the choice list, there are the labels A,B,C
// the corresponding values are 100,200,300
// during the defintion process, the values are provided by a second argument to add
// getContent() answers the value !!
public class ZaurusChoice extends Choice implements ZaurusComponent {
private static final int MaxLenInZChoice = 15;
Vector values;
int countChanges;
public ZaurusChoice() {
super();
values = new Vector(20);
countChanges = 0;
}
// restrict strings for the choice to MaxLenInZChoice characters
public void add(String item, String value) {
int maxChar = MaxLenInZChoice;
if (item.length() < MaxLenInZChoice) {
maxChar = item.length();
}
super.add(item.substring(0, maxChar));
values.addElement(value);
}
public void clearChanges() {
countChanges = 0;
}
public void clearContent() {
super.select(0);
}
public String getContent() {
return (String) values.elementAt(super.getSelectedIndex());
}
public boolean hasChanged() {
return countChanges > 0;
}
public void requestFocus() {
super.requestFocus();
}
public void setChanged() {
countChanges++;
}
// set the choice to the element in choice of the corresponding value
public void setContent(String s) {
super.select(this.findValue(s));
}
public void setEditable(boolean b) {
super.setEnabled(b);
if (b) {
super.setBackground(Color.white);
} else {
super.setBackground(Color.lightGray);
} // end of if (b)else
}
// find for a given value the index in values
private int findValue(String s) {
for (int i = 0; i < values.size(); i++) {
if (s.equals(values.elementAt(i))) {
return i;
} // end of if (s.equals(values.elementAt(i)))
} // end of for (int i=0; i<values.size(); i++)
return -1;
}
}