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1
19
20 package org.netbeans.modules.apisupport.project.ui.platform;
21
22 import java.awt.Component  ;
23 import java.awt.Image ;
24 import java.beans.PropertyChangeEvent ;
25 import java.beans.PropertyChangeListener ;
26 import java.util.Arrays ;
27 import java.util.Comparator ;
28 import javax.swing.AbstractListModel ;
29 import javax.swing.ComboBoxModel ;
30 import javax.swing.DefaultListCellRenderer ;
31 import javax.swing.Icon ;
32 import javax.swing.ImageIcon ;
33 import javax.swing.JComboBox ;
34 import javax.swing.JLabel ;
35 import javax.swing.JList ;
36 import javax.swing.ListCellRenderer ;
37 import javax.swing.plaf.UIResource ;
38 import org.netbeans.api.project.libraries.Library;
39 import org.netbeans.api.project.libraries.LibraryManager;
40 import org.openide.util.Utilities;
41 import org.openide.util.WeakListeners;
42
43
47 public final class LibrariesModel extends AbstractListModel implements ComboBoxModel , PropertyChangeListener {
48 private Library[] cache;
49 private Object selectedLibrary = null;
50
51 public static JComboBox getComboBox() {
52 JComboBox librariesComboBox = new JComboBox (new LibrariesModel());
53 librariesComboBox.setRenderer(new LibraryRenderer());
54 return librariesComboBox;
55 }
56
57
58 private LibrariesModel() {
59 LibraryManager manager = LibraryManager.getDefault();
60 manager.addPropertyChangeListener((PropertyChangeListener )WeakListeners.create(PropertyChangeListener .class,
61 this, manager));
62 Library[] libraries = getLibraries();
63 if (libraries != null && libraries.length > 0) {
64 selectedLibrary = libraries[0];
65 }
66
67 }
68
69 public synchronized int getSize() {
70 if (this.cache == null) {
71 this.cache = this.createLibraries();
72 }
73 return this.cache.length;
74 }
75
76 public synchronized Object getElementAt(int index) {
77 if (this.cache == null) {
78 this.cache = this.createLibraries();
79 }
80 if (index >= 0 && index < this.cache.length) {
81 return this.cache[index];
82 } else {
83 return null;
84 }
85 }
86
87 public synchronized void propertyChange(PropertyChangeEvent evt) {
88 int oldSize = this.cache == null ? 0 : this.cache.length;
89 this.cache = createLibraries();
90 int newSize = this.cache.length;
91
92 this.fireContentsChanged(this, 0, Math.min(oldSize-1,newSize-1));
93 if (oldSize > newSize) {
94 this.fireIntervalRemoved(this,newSize,oldSize-1);
95 } else if (oldSize < newSize) {
96 this.fireIntervalAdded(this,oldSize,newSize-1);
97 }
98 }
99
100 public synchronized Library[] getLibraries() {
101 if (this.cache == null) {
102 this.cache = this.createLibraries();
103 }
104 return this.cache;
105 }
106
107 private Library[] createLibraries() {
108 Library[] libs = LibraryManager.getDefault().getLibraries();
109 Arrays.sort(libs, new Comparator () {
110 public int compare(Object o1, Object o2) {
111 assert (o1 instanceof Library) && (o2 instanceof Library);
112 String name1 = ((Library)o1).getDisplayName();
113 String name2 = ((Library)o2).getDisplayName();
114 return name1.compareToIgnoreCase(name2);
115 }
116 });
117 return libs;
118 }
119
120 public void setSelectedItem(Object libarry) {
121 assert libarry == null || libarry instanceof Library;
122 if (selectedLibrary != libarry) {
123 selectedLibrary = libarry;
124 fireContentsChanged(this, -1, -1);
125 }
126 }
127
128 public Object getSelectedItem() {
129 return selectedLibrary;
130 }
131
132 private static final class LibraryRenderer extends JLabel implements ListCellRenderer , UIResource {
133
134 private static final String LIBRARY_ICON = "org/netbeans/modules/apisupport/project/ui/resources/libraries.gif"; private Icon cachedIcon;
136
137 public LibraryRenderer () {
138 setOpaque(true);
139 }
140
141 public Component getListCellRendererComponent(JList list, Object value, int index, boolean isSelected, boolean cellHasFocus) {
142 setName("ComboBox.listRenderer");
145 String displayName = null;
146
147 if (value instanceof Library) {
148 Library lib = ((Library)value);
149 displayName = lib.getDisplayName();
150 }
151 setText(displayName);
152 setIcon(createIcon());
153
154 if ( isSelected ) {
155 setBackground(list.getSelectionBackground());
156 setForeground(list.getSelectionForeground());
157 }
158 else {
159 setBackground(list.getBackground());
160 setForeground(list.getForeground());
161 }
162
163 return this;
164 }
165
166 public String getName() {
168 String name = super.getName();
169 return name == null ? "ComboBox.renderer" : name; }
171
172 private synchronized Icon createIcon () {
173 if (this.cachedIcon == null) {
174 Image img = Utilities.loadImage(LIBRARY_ICON);
175 this.cachedIcon = new ImageIcon (img);
176 }
177 return this.cachedIcon;
178 }
179 }
180 }
181 |
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