Source Code Cross Referenced for IntegerOptionComponent.java in  » IDE » DrJava » edu » rice » cs » drjava » ui » config » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » IDE » DrJava » edu.rice.cs.drjava.ui.config 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*BEGIN_COPYRIGHT_BLOCK
002:         *
003:         * Copyright (c) 2001-2007, JavaPLT group at Rice University (javaplt@rice.edu)
004:         * All rights reserved.
005:         * 
006:         * Redistribution and use in source and binary forms, with or without
007:         * modification, are permitted provided that the following conditions are met:
008:         *    * Redistributions of source code must retain the above copyright
009:         *      notice, this list of conditions and the following disclaimer.
010:         *    * Redistributions in binary form must reproduce the above copyright
011:         *      notice, this list of conditions and the following disclaimer in the
012:         *      documentation and/or other materials provided with the distribution.
013:         *    * Neither the names of DrJava, the JavaPLT group, Rice University, nor the
014:         *      names of its contributors may be used to endorse or promote products
015:         *      derived from this software without specific prior written permission.
016:         * 
017:         * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
018:         * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
019:         * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
020:         * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
021:         * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
022:         * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
023:         * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
024:         * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
025:         * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
026:         * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
027:         * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
028:         *
029:         * This software is Open Source Initiative approved Open Source Software.
030:         * Open Source Initative Approved is a trademark of the Open Source Initiative.
031:         * 
032:         * This file is part of DrJava.  Download the current version of this project
033:         * from http://www.drjava.org/ or http://sourceforge.net/projects/drjava/
034:         * 
035:         * END_COPYRIGHT_BLOCK*/
036:
037:        package edu.rice.cs.drjava.ui.config;
038:
039:        import javax.swing.*;
040:        import javax.swing.event.*;
041:        import edu.rice.cs.drjava.config.*;
042:        import edu.rice.cs.drjava.*;
043:        import java.awt.*;
044:
045:        /**
046:         * Graphical form of an IntegerOption.
047:         * @version $Id: IntegerOptionComponent.java 4255 2007-08-28 19:17:37Z mgricken $
048:         */
049:        public class IntegerOptionComponent extends OptionComponent<Integer> {
050:            private JTextField _jtf;
051:
052:            public IntegerOptionComponent(IntegerOption opt, String text,
053:                    Frame parent) {
054:                super (opt, text, parent);
055:                _jtf = new JTextField();
056:                _jtf.setText(_option.format(DrJava.getConfig().getSetting(
057:                        _option)));
058:                _jtf.getDocument().addDocumentListener(new DocumentListener() {
059:                    public void insertUpdate(DocumentEvent e) {
060:                        notifyChangeListeners();
061:                    }
062:
063:                    public void removeUpdate(DocumentEvent e) {
064:                        notifyChangeListeners();
065:                    }
066:
067:                    public void changedUpdate(DocumentEvent e) {
068:                        notifyChangeListeners();
069:                    }
070:                });
071:            }
072:
073:            /**
074:             * Constructor that allows for a tooltip description.
075:             */
076:            public IntegerOptionComponent(IntegerOption opt, String text,
077:                    Frame parent, String description) {
078:                this (opt, text, parent);
079:                setDescription(description);
080:            }
081:
082:            /**
083:             * Sets the tooltip description text for this option.
084:             * @param description the tooltip text
085:             */
086:            public void setDescription(String description) {
087:                _jtf.setToolTipText(description);
088:                _label.setToolTipText(description);
089:            }
090:
091:            /**
092:             * Updates the config object with the new setting.
093:             * @return true if the new value is set successfully
094:             */
095:            public boolean updateConfig() {
096:
097:                Integer currentValue = DrJava.getConfig().getSetting(_option);
098:                String enteredString = _jtf.getText().trim();
099:                //If the current value is the same as the enterd value, there is nothing to do.
100:                if (currentValue.toString().equals(enteredString)) {
101:                    return true;
102:                }
103:
104:                Integer enteredValue;
105:                try {
106:                    enteredValue = _option.parse(enteredString);
107:                } catch (OptionParseException ope) {
108:                    showErrorMessage("Invalid Integer!", ope);
109:                    return false;
110:                }
111:
112:                DrJava.getConfig().setSetting(_option, enteredValue);
113:                return true;
114:            }
115:
116:            /**
117:             * Displays the given value.
118:             */
119:            public void setValue(Integer value) {
120:                _jtf.setText(_option.format(value));
121:            }
122:
123:            /**
124:             * Return's this OptionComponent's configurable component.
125:             */
126:            public JComponent getComponent() {
127:                return _jtf;
128:            }
129:
130:        }
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