Source Code Cross Referenced for ItemsProperty.java in  » Swing-Library » abeille-forms-designer » com » jeta » forms » store » properties » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Swing Library » abeille forms designer » com.jeta.forms.store.properties 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Copyright (c) 2004 JETA Software, Inc.  All rights reserved.
003:         * 
004:         * Redistribution and use in source and binary forms, with or without modification, 
005:         * are permitted provided that the following conditions are met:
006:         *
007:         *  o Redistributions of source code must retain the above copyright notice, 
008:         *    this list of conditions and the following disclaimer.
009:         *
010:         *  o Redistributions in binary form must reproduce the above copyright notice, 
011:         *    this list of conditions and the following disclaimer in the documentation 
012:         *    and/or other materials provided with the distribution.
013:         *
014:         *  o Neither the name of JETA Software nor the names of its contributors may 
015:         *    be used to endorse or promote products derived from this software without 
016:         *    specific prior written permission.
017:         *
018:         * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
019:         * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
020:         * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
021:         * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
022:         * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
023:         * INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
024:         * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
025:         * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
026:         * INCLUDING 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:
030:        package com.jeta.forms.store.properties;
031:
032:        import java.awt.Component;
033:        import java.io.IOException;
034:        import java.util.Collection;
035:        import java.util.Iterator;
036:
037:        import javax.swing.DefaultListModel;
038:        import javax.swing.JComboBox;
039:        import javax.swing.JList;
040:
041:        import com.jeta.forms.components.list.ListItemRenderer;
042:        import com.jeta.forms.gui.beans.JETABean;
043:        import com.jeta.forms.store.JETAObjectInput;
044:        import com.jeta.forms.store.JETAObjectOutput;
045:
046:        /**
047:         * This property is used to represent a Collection of objects for those beans
048:         * that support showing a group. For example: JComboBox and JList.
049:         * 
050:         * @author Jeff Tassin
051:         */
052:        public class ItemsProperty extends JETAProperty {
053:            static final long serialVersionUID = -382961445445803877L;
054:
055:            /**
056:             * The current version number of this class
057:             */
058:            public static final int VERSION = 1;
059:
060:            /**
061:             * The Collection of items in this property that will be added to the JList
062:             * or JComboBox. This collection will normally contain String objects or
063:             * more likely, ListItemProperty objects.
064:             */
065:            private Collection m_items;
066:
067:            /**
068:             * The name of this property
069:             */
070:            public static final String PROPERTY_ID = "items";
071:
072:            /**
073:             * Creates an unitialized <code>ItemsProperty</code> instance.
074:             */
075:            public ItemsProperty() {
076:                super (PROPERTY_ID);
077:            }
078:
079:            /**
080:             * Creates an <code>ItemsProperty</code> instance with the specified list
081:             * items.
082:             * 
083:             * @param items
084:             *            a collection of objects used to populate the Java bean.
085:             */
086:            public ItemsProperty(Collection items) {
087:                super (PROPERTY_ID);
088:                setItems(items);
089:            }
090:
091:            /**
092:             * Returns the collection of objects used to populate the Java bean
093:             * associated with this property. This collection will contain either
094:             * Strings or ListItemProperty objects.
095:             * 
096:             * @return the items in this property
097:             */
098:            public Collection getItems() {
099:                return m_items;
100:            }
101:
102:            /**
103:             * Sets the items of this property.
104:             * 
105:             * @param items
106:             *            the items for this property. This collection will contain
107:             *            either Strings or ListItemProperty objects.
108:             */
109:            private void setItems(Collection items) {
110:                if (items == null)
111:                    m_items = null;
112:                else
113:                    m_items = new java.util.LinkedList(items);
114:            }
115:
116:            /**
117:             * Sets the values of this property to that of another ItemsProperty.
118:             * 
119:             * @param prop
120:             *            an ItemsProperty object.
121:             */
122:            public void setValue(Object prop) {
123:                if (prop instanceof  ItemsProperty) {
124:                    ItemsProperty ip = (ItemsProperty) prop;
125:                    setItems(ip.getItems());
126:                } else {
127:                    assert (false);
128:                }
129:            }
130:
131:            /**
132:             * Updates the bean with the current items of this property. If the
133:             * associated Java bean is a JComboBox or JList, the items of this property
134:             * are added to the bean. Additionally, a ListItemRenderer is set as the
135:             * renderer for the bean. This allows any icons associated with the list
136:             * items to be correctly rendered.
137:             */
138:            public void updateBean(JETABean jbean) {
139:                Component comp = null;
140:                if (jbean != null)
141:                    comp = jbean.getDelegate();
142:
143:                if (comp instanceof  JComboBox) {
144:                    JComboBox jbox = (JComboBox) comp;
145:                    jbox.setRenderer(new ListItemRenderer());
146:                    jbox.removeAllItems();
147:                    if (m_items != null) {
148:                        Iterator iter = m_items.iterator();
149:                        while (iter.hasNext()) {
150:                            jbox.addItem(iter.next());
151:                        }
152:                    }
153:                } else if (comp instanceof  JList) {
154:                    JList list = (JList) comp;
155:                    Object lm = list.getModel();
156:                    if (lm instanceof  DefaultListModel) {
157:                        list.setCellRenderer(new ListItemRenderer());
158:                        DefaultListModel lmodel = (DefaultListModel) lm;
159:                        lmodel.removeAllElements();
160:                        if (m_items != null) {
161:                            Iterator iter = m_items.iterator();
162:                            while (iter.hasNext()) {
163:                                lmodel.addElement(iter.next());
164:                            }
165:                        }
166:                    }
167:                }
168:            }
169:
170:            /**
171:             * JETAPersistable Implementation
172:             */
173:            public void read(JETAObjectInput in) throws ClassNotFoundException,
174:                    IOException {
175:                super .read(in.getSuperClassInput());
176:                int version = in.readVersion();
177:                m_items = (Collection) in.readObject("items");
178:            }
179:
180:            /**
181:             * JETAPersistable Implementation
182:             */
183:            public void write(JETAObjectOutput out) throws IOException {
184:                super .write(out.getSuperClassOutput(JETAProperty.class));
185:                out.writeVersion(VERSION);
186:                out.writeObject("items", m_items);
187:            }
188:
189:            public String toString() {
190:                if (m_items == null)
191:                    return "Items Property:  null " + hashCode();
192:                else
193:                    return "Items Property:  size: " + m_items.size() + "   "
194:                            + hashCode();
195:            }
196:        }
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