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1
19
20 package org.netbeans.modules.editor.hints.borrowed;
21
22 import java.awt.Component  ;
23 import java.awt.Dimension ;
24 import java.awt.Font ;
25 import java.beans.PropertyChangeEvent ;
26 import java.beans.PropertyChangeListener ;
27 import java.util.ArrayList ;
28 import java.util.Collection ;
29 import java.util.LinkedHashSet ;
30 import java.util.List ;
31 import javax.swing.AbstractListModel ;
32 import javax.swing.BorderFactory ;
33 import javax.swing.Icon ;
34 import javax.swing.ImageIcon ;
35 import javax.swing.JList ;
36 import javax.swing.ListCellRenderer ;
37 import javax.swing.SwingUtilities ;
38 import org.netbeans.editor.LocaleSupport;
39 import org.netbeans.modules.editor.hints.HintsUI;
40 import org.netbeans.spi.editor.hints.Fix;
41 import org.netbeans.spi.editor.hints.LazyFixList;
42 import org.openide.awt.HtmlRenderer;
43
44
48
49 public class ListCompletionView extends JList implements ListCellRenderer {
50
51 private final HtmlRenderer.Renderer defaultRenderer = HtmlRenderer.createRenderer();
52 private Font font;
53 private Icon icon = new ImageIcon (org.openide.util.Utilities.loadImage("org/netbeans/modules/editor/hints/resources/suggestion.gif"));
55 public ListCompletionView() {
56 setSelectionMode(javax.swing.ListSelectionModel.SINGLE_SELECTION);
57 font = getFont();
58 if (font.getSize() < 15 ) {
59 font = font.deriveFont(font.getSize2D() + 1);
60 }
61
62 setFont( font );
63 setCellRenderer( this );
64 setBorder( BorderFactory.createEmptyBorder() );
65 getAccessibleContext().setAccessibleName(LocaleSupport.getString("ACSN_CompletionView"));
66 getAccessibleContext().setAccessibleDescription(LocaleSupport.getString("ACSD_CompletionView"));
67 }
68
69 public Component getListCellRendererComponent(JList list, Object value, int index, boolean isSelected, boolean cellHasFocus) {
70 Component c = defaultRenderer.getListCellRendererComponent( list, value instanceof Fix ? ((Fix) value).getText() : value.toString(), index, isSelected, cellHasFocus );
71 defaultRenderer.setIcon( icon );
72 defaultRenderer.setParentFocused(true);
73 defaultRenderer.setRenderStyle(HtmlRenderer.STYLE_CLIP);
74 c.setBackground(list.getBackground());
75 return c;
76 }
77
78 public void setResult(LazyFixList data) {
79 if (data != null) {
80 Model model = new Model (data);
81
82 setModel(model);
83 if (model.fixes != null && !model.fixes.isEmpty()) {
84 setSelectedIndex(0);
85 }
86 }
87 }
88
89
90 public Dimension getPreferredScrollableViewportSize() {
91 return getPreferredSize();
92 }
93
94 public void up() {
95 if (getModel().getSize() > 0) {
96 setSelectedIndex(Math.max(getSelectedIndex() - 1, 0));
97 ensureIndexIsVisible(getSelectedIndex());
98 repaint();
99 }
100 }
101
102 public void down() {
103 int lastInd = getModel().getSize() - 1;
104 if (lastInd >= 0) {
105 setSelectedIndex(Math.min(getSelectedIndex() + 1, lastInd));
106 ensureIndexIsVisible(getSelectedIndex());
107 validate();
108 }
109 }
110
111 public void pageUp() {
112 if (getModel().getSize() > 0) {
113 int pageSize = Math.max(getLastVisibleIndex() - getFirstVisibleIndex(), 0);
114 int ind = Math.max(getSelectedIndex() - pageSize, 0);
115
116 setSelectedIndex(ind);
117 ensureIndexIsVisible(ind);
118 }
119 }
120
121 public void pageDown() {
122 int lastInd = getModel().getSize() - 1;
123 if (lastInd >= 0) {
124 int pageSize = Math.max(getLastVisibleIndex() - getFirstVisibleIndex(), 0);
125 int ind = Math.min(getSelectedIndex() + pageSize, lastInd);
126
127 setSelectedIndex(ind);
128 ensureIndexIsVisible(ind);
129 }
130 }
131
132 public void begin() {
133 if (getModel().getSize() > 0) {
134 setSelectedIndex(0);
135 ensureIndexIsVisible(0);
136 }
137 }
138
139 public void end() {
140 int lastInd = getModel().getSize() - 1;
141 if (lastInd >= 0) {
142 setSelectedIndex(lastInd);
143 ensureIndexIsVisible(lastInd);
144 }
145 }
146
147 static class Model extends AbstractListModel implements PropertyChangeListener {
148
149 private LazyFixList data;
150 private List <Fix> fixes;
151 private boolean computed;
152
153
154 static final long serialVersionUID = 3292276783870598274L;
155
156 public Model(LazyFixList data) {
157 this.data = data;
158 data.addPropertyChangeListener(this);
159 update();
160 }
161
162 private synchronized void update() {
163 computed = data.isComputed();
164 if (computed)
165 fixes = new ArrayList <Fix>(new LinkedHashSet <Fix>(data.getFixes()));
166 else
167 data.getFixes();
168 }
169
170 public synchronized int getSize() {
171 return computed ? fixes.size() : 1;
172 }
173
174 public synchronized Object getElementAt(int index) {
175 if (!computed) {
176 return "computing...";
177 } else {
178 return fixes.get(index);
179 }
180 }
181
182 public void propertyChange(PropertyChangeEvent evt) {
183 SwingUtilities.invokeLater(new Runnable () {
185 public void run() {
186 HintsUI.getDefault().removePopups();
187 HintsUI.getDefault().showPopup();
188 }
189 });
190 }
191
192 }
193
194 }
195 |
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