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HSQLDB example source code file (ZaurusChoice.java)
The HSQLDB ZaurusChoice.java source code/* Copyright (c) 2001-2008, The HSQL Development Group * All rights reserved. * * Redistribution and use in source and binary forms, with or without * 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" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL HSQL DEVELOPMENT GROUP, HSQLDB.ORG, * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ 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; } } Other HSQLDB examples (source code examples)Here is a short list of links related to this HSQLDB ZaurusChoice.java source code file: |
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