|
1
19
20 package org.netbeans.api.languages.support;
21
22 import java.awt.Color  ;
23 import java.awt.Font ;
24 import java.awt.Graphics ;
25 import java.awt.Image ;
26 import java.awt.event.KeyEvent ;
27 import java.util.HashMap ;
28 import java.util.Map ;
29 import javax.swing.Icon ;
30 import javax.swing.ImageIcon ;
31 import javax.swing.JLabel ;
32 import javax.swing.text.BadLocationException ;
33 import javax.swing.text.JTextComponent ;
34 import org.netbeans.api.editor.completion.Completion;
35 import org.netbeans.api.languages.LanguagesManager;
36 import org.netbeans.api.languages.ParseException;
37 import org.netbeans.api.lexer.Token;
38 import org.netbeans.api.lexer.TokenHierarchy;
39 import org.netbeans.api.lexer.TokenSequence;
40 import org.netbeans.modules.editor.NbEditorDocument;
41 import org.netbeans.modules.languages.Language;
42 import org.netbeans.modules.languages.LanguagesManagerImpl;
43 import org.netbeans.spi.editor.completion.CompletionItem;
44 import org.netbeans.spi.editor.completion.CompletionTask;
45 import org.openide.ErrorManager;
46 import org.openide.util.Utilities;
47
48
49
54 public class CompletionSupport {
55
56 public static CompletionItem createCompletionItem (
57 String text
58 ) {
59 return new CompletionItemImpl (text, text, null, 100);
60 }
61
62 public static CompletionItem createCompletionItem (
63 String text,
64 String description
65 ) {
66 return new CompletionItemImpl (text, description, null, 100);
67 }
68
69 public static CompletionItem createCompletionItem (
70 String text,
71 String description,
72 String icon
73 ) {
74 return new CompletionItemImpl (text, description, icon, 100);
75 }
76
77 public static CompletionItem createCompletionItem (
78 String text,
79 String description,
80 String icon,
81 int priority
82 ) {
83 return new CompletionItemImpl (text, description, icon, priority);
84 }
85
86 private static Map <String ,ImageIcon > icons = new HashMap <String ,ImageIcon > ();
87
88 private static Icon getCIcon (String resourceName) {
89 if (resourceName == null)
90 resourceName = "/org/netbeans/modules/languages/resources/node.gif";
91 if (!icons.containsKey (resourceName)) {
92 Image image = Utilities.loadImage (resourceName);
93 if (image == null)
94 image = Utilities.loadImage (
95 "/org/netbeans/modules/languages/resources/node.gif"
96 );
97 icons.put (
98 resourceName,
99 new ImageIcon (image)
100 );
101 }
102 return icons.get (resourceName);
103 }
104
105 private static class CompletionItemImpl implements CompletionItem {
106
107 private String text;
108 private String description;
109 private String icon;
110 private int priority;
111 private static JLabel label = new JLabel ();
112
113
114 CompletionItemImpl (
115 String text,
116 String description,
117 String icon,
118 int priority
119 ) {
120 this.text = text;
121 this.description = description;
122 this.icon = icon;
123 this.priority = priority;
124 }
125
126 public void defaultAction (JTextComponent component) {
127 NbEditorDocument doc = (NbEditorDocument) component.getDocument ();
128 int offset = component.getCaret ().getDot ();
129 try {
130 TokenHierarchy tokenHierarchy = TokenHierarchy.get (doc);
131 TokenSequence sequence = tokenHierarchy.tokenSequence ();
132 sequence.move (offset - 1);
133 sequence.moveNext();
134 Token token = sequence.token ();
135 String mimeType = (String ) doc.getProperty ("mimeType");
136 Language l = ((LanguagesManagerImpl) LanguagesManager.getDefault ()).
137 getLanguage (mimeType);
138 String t = text;
139 if (!l.getSkipTokenTypes ().contains (token.id ().name ()))
140 t = text.substring (offset - sequence.offset ());
141 doc.insertString (offset, t, null);
142 } catch (BadLocationException ex) {
143 ErrorManager.getDefault ().notify (ex);
144 } catch (ParseException ex) {
145 ErrorManager.getDefault ().notify (ex);
146 }
147 Completion.get ().hideAll ();
148 }
149
150 public void processKeyEvent (KeyEvent evt) {
151 }
152
153 public int getPreferredWidth (Graphics g, Font defaultFont) {
154 label.setFont (defaultFont);
155 label.setText (description);
156 return label.getPreferredSize ().width;
157 }
158
159 public void render (
160 Graphics g,
161 Font defaultFont,
162 Color defaultColor,
163 Color backgroundColor,
164 int width, int height, boolean selected
165 ) {
166 label.setText (description);
167 label.setForeground (defaultColor);
168 label.setBackground (backgroundColor);
169 label.setFont (defaultFont);
170 label.setIcon (getCIcon (icon));
171 label.setBounds (g.getClipBounds ());
172 label.paint (g);
173 }
174
175 public CompletionTask createDocumentationTask () {
176 return null;
177 }
178
179 public CompletionTask createToolTipTask () {
180 return null;
181 }
182
183 public boolean instantSubstitution (JTextComponent component) {
184 return false;
185 }
186
187 public int getSortPriority () {
188 return priority;
189 }
190
191 public CharSequence getSortText () {
192 return text;
193 }
194
195 public CharSequence getInsertPrefix () {
196 return text;
197 }
198 }
199 }
200
201
202 |
Popular Tags |
Java API By Example, From Geeks To Geeks.