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1
19
20 package org.netbeans.lib.editor.codetemplates;
21
22 import java.awt.Color  ;
23 import java.awt.Font ;
24 import java.awt.Graphics ;
25 import java.awt.event.KeyEvent ;
26 import javax.swing.ImageIcon ;
27 import javax.swing.text.BadLocationException ;
28 import javax.swing.text.Document ;
29 import javax.swing.text.JTextComponent ;
30 import org.netbeans.api.editor.completion.Completion;
31 import org.netbeans.lib.editor.codetemplates.api.CodeTemplate;
32 import org.netbeans.lib.editor.util.swing.DocumentUtilities;
33 import org.netbeans.spi.editor.completion.CompletionDocumentation;
34 import org.netbeans.spi.editor.completion.CompletionItem;
35 import org.netbeans.spi.editor.completion.CompletionResultSet;
36 import org.netbeans.spi.editor.completion.CompletionTask;
37 import org.netbeans.spi.editor.completion.support.AsyncCompletionQuery;
38 import org.netbeans.spi.editor.completion.support.AsyncCompletionTask;
39 import org.netbeans.spi.editor.completion.support.CompletionUtilities;
40 import org.openide.util.Utilities;
41
42
47 public final class CodeTemplateCompletionItem implements CompletionItem {
48
49 private static ImageIcon icon;
50
51 private final CodeTemplate codeTemplate;
52
53 private String leftText;
54
55 public static String toHtmlText(String text) {
56 StringBuffer htmlText = null;
57 for (int i = 0; i < text.length(); i++) {
58 String rep; char ch = text.charAt(i);
60 switch (ch) {
61 case '<':
62 rep = "<"; break;
64 case '>':
65 rep = ">"; break;
67 case '\n':
68 rep = "<br>"; break;
70 default:
71 rep = null;
72 break;
73 }
74
75 if (rep != null) {
76 if (htmlText == null) {
77 htmlText = new StringBuffer (120 * text.length() / 100);
79 if (i > 0) {
80 htmlText.append(text.substring(0, i));
81 }
82 }
83 htmlText.append(rep);
84
85 } else { if (htmlText != null) {
87 htmlText.append(ch);
88 }
89 }
90 }
91 return (htmlText != null) ? htmlText.toString() : text;
92 }
93
94 public CodeTemplateCompletionItem(CodeTemplate codeTemplate) {
95 this.codeTemplate = codeTemplate;
96 }
97
98 private String getLeftText() {
99 return codeTemplate.getDescription();
102 }
103
104 private String getRightText() {
105 if (leftText == null) {
106 leftText = toHtmlText(codeTemplate.getAbbreviation());
107 }
108 return leftText;
109 }
110
111 public int getPreferredWidth(Graphics g, Font defaultFont) {
112 return CompletionUtilities.getPreferredWidth(getLeftText(), getRightText(),
113 g, defaultFont);
114 }
115
116 public void render(Graphics g, Font defaultFont, Color defaultColor,
117 Color backgroundColor, int width, int height, boolean selected) {
118
119 if (icon == null) {
120 icon = new ImageIcon (Utilities.loadImage(
121 "org/netbeans/lib/editor/codetemplates/resources/code_template.png")); }
123 CompletionUtilities.renderHtml(icon, getLeftText(), getRightText(),
124 g, defaultFont, defaultColor, width, height, selected);
125 }
126
127 public void defaultAction(JTextComponent component) {
128 Completion.get().hideAll();
129 Document doc = component.getDocument();
131 int caretOffset = component.getSelectionStart();
132 int initMatchLen = getInitialMatchLength(doc, caretOffset, codeTemplate.getParametrizedText());
133 if (initMatchLen > 0) {
134 try {
135 doc.remove(caretOffset - initMatchLen, initMatchLen);
137 } catch (BadLocationException ble) {
138 }
139 }
140 codeTemplate.insert(component);
141 }
142
143 public void processKeyEvent(KeyEvent evt) {
144 }
145
146 public boolean instantSubstitution(JTextComponent component) {
147 return false;
149 }
150
151 public static int getInitialMatchLength(Document doc, int caretOffset, String text) {
152 int matchLength = Math.min(text.length(), caretOffset);
153 CharSequence docText = DocumentUtilities.getText((org.netbeans.editor.BaseDocument)doc);
154 while (matchLength > 0) {
155 int i;
156 for (i = 1; i < matchLength; i++) {
157 if (docText.charAt(caretOffset - i) != text.charAt(matchLength - i)) {
158 break;
159 }
160 }
161 if (i == matchLength) {
162 break;
163 }
164 matchLength--;
165 }
166 return matchLength;
167 }
168
169 public CompletionTask createDocumentationTask() {
170 return new AsyncCompletionTask(new DocQuery(codeTemplate));
171 }
172
173 public CompletionTask createToolTipTask() {
174 return null;
175 }
176
177 public int getSortPriority() {
178 return 650;
179 }
180
181 public CharSequence getSortText() {
182 return "";
183 }
184
185 public CharSequence getInsertPrefix() {
186 String insertPrefix = codeTemplate.getParametrizedText();
187 int dollarIndex = insertPrefix.indexOf("${"); if (dollarIndex >= 0) {
189 insertPrefix = insertPrefix.substring(0, dollarIndex);
190 }
191 return insertPrefix;
192 }
193
194 private static final class DocQuery extends AsyncCompletionQuery {
195
196 private CodeTemplate codeTemplate;
197
198 DocQuery(CodeTemplate codeTemplate) {
199 this.codeTemplate = codeTemplate;
200 }
201
202 protected void query(CompletionResultSet resultSet, Document doc, int caretOffset) {
203 resultSet.setDocumentation(new DocItem(codeTemplate));
204 resultSet.finish();
205 }
206
207 }
208
209 private static final class DocItem implements CompletionDocumentation {
210
211 private CodeTemplate codeTemplate;
212
213 private String text;
214
215 DocItem(CodeTemplate codeTemplate) {
216 this.codeTemplate = codeTemplate;
217 text = createText();
218 }
219
220 public String getText() {
221 return text;
222 }
223
224 private String createText() {
225 StringBuffer htmlText = new StringBuffer ("<html><pre>"); ParametrizedTextParser parser = new ParametrizedTextParser(null, codeTemplate.getParametrizedText());
228 parser.parse();
229 parser.appendHtmlText(htmlText);
230 htmlText.append("</pre>");
232 htmlText.append("<br>Abbreviation: "); htmlText.append(toHtmlText(codeTemplate.getAbbreviation()));
235 htmlText.append(" ["); String mimeType = CodeTemplateApiPackageAccessor.get().getOperation(codeTemplate).getMimeType();
238 htmlText.append(AbbrevSettings.get(mimeType).getExpandKeyStrokeText());
239 htmlText.append(" for expansion]</html>"); return htmlText.toString();
241 }
242
243 public CompletionDocumentation resolveLink(String link) {
244 return null;
245 }
246
247 public java.net.URL getURL() {
248 return null;
249 }
250
251
252 public javax.swing.Action getGotoSourceAction() {
253 return null;
254 }
255
256 }
257
258 }
259 |
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