Source Code Cross Referenced for CSSFormatter.java in  » IDE-Netbeans » css » org » netbeans » modules » css » gsf » Java Source Code / Java DocumentationJava Source Code and Java Documentation

Java Source Code / Java Documentation
1. 6.0 JDK Core
2. 6.0 JDK Modules
3. 6.0 JDK Modules com.sun
4. 6.0 JDK Modules com.sun.java
5. 6.0 JDK Modules sun
6. 6.0 JDK Platform
7. Ajax
8. Apache Harmony Java SE
9. Aspect oriented
10. Authentication Authorization
11. Blogger System
12. Build
13. Byte Code
14. Cache
15. Chart
16. Chat
17. Code Analyzer
18. Collaboration
19. Content Management System
20. Database Client
21. Database DBMS
22. Database JDBC Connection Pool
23. Database ORM
24. Development
25. EJB Server geronimo
26. EJB Server GlassFish
27. EJB Server JBoss 4.2.1
28. EJB Server resin 3.1.5
29. ERP CRM Financial
30. ESB
31. Forum
32. GIS
33. Graphic Library
34. Groupware
35. HTML Parser
36. IDE
37. IDE Eclipse
38. IDE Netbeans
39. Installer
40. Internationalization Localization
41. Inversion of Control
42. Issue Tracking
43. J2EE
44. JBoss
45. JMS
46. JMX
47. Library
48. Mail Clients
49. Net
50. Parser
51. PDF
52. Portal
53. Profiler
54. Project Management
55. Report
56. RSS RDF
57. Rule Engine
58. Science
59. Scripting
60. Search Engine
61. Security
62. Sevlet Container
63. Source Control
64. Swing Library
65. Template Engine
66. Test Coverage
67. Testing
68. UML
69. Web Crawler
70. Web Framework
71. Web Mail
72. Web Server
73. Web Services
74. Web Services apache cxf 2.0.1
75. Web Services AXIS2
76. Wiki Engine
77. Workflow Engines
78. XML
79. XML UI
Java
Java Tutorial
Java Open Source
Jar File Download
Java Articles
Java Products
Java by API
Photoshop Tutorials
Maya Tutorials
Flash Tutorials
3ds-Max Tutorials
Illustrator Tutorials
GIMP Tutorials
C# / C Sharp
C# / CSharp Tutorial
C# / CSharp Open Source
ASP.Net
ASP.NET Tutorial
JavaScript DHTML
JavaScript Tutorial
JavaScript Reference
HTML / CSS
HTML CSS Reference
C / ANSI-C
C Tutorial
C++
C++ Tutorial
Ruby
PHP
Python
Python Tutorial
Python Open Source
SQL Server / T-SQL
SQL Server / T-SQL Tutorial
Oracle PL / SQL
Oracle PL/SQL Tutorial
PostgreSQL
SQL / MySQL
MySQL Tutorial
VB.Net
VB.Net Tutorial
Flash / Flex / ActionScript
VBA / Excel / Access / Word
XML
XML Tutorial
Microsoft Office PowerPoint 2007 Tutorial
Microsoft Office Excel 2007 Tutorial
Microsoft Office Word 2007 Tutorial
Java Source Code / Java Documentation » IDE Netbeans » css » org.netbeans.modules.css.gsf 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003:         * 
004:         * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005:         * 
006:         * The contents of this file are subject to the terms of either the GNU
007:         * General Public License Version 2 only ("GPL") or the Common
008:         * Development and Distribution License("CDDL") (collectively, the
009:         * "License"). You may not use this file except in compliance with the
010:         * License. You can obtain a copy of the License at
011:         * http://www.netbeans.org/cddl-gplv2.html
012:         * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013:         * specific language governing permissions and limitations under the
014:         * License.  When distributing the software, include this License Header
015:         * Notice in each file and include the License file at
016:         * nbbuild/licenses/CDDL-GPL-2-CP.  Sun designates this
017:         * particular file as subject to the "Classpath" exception as provided
018:         * by Sun in the GPL Version 2 section of the License file that
019:         * accompanied this code. If applicable, add the following below the
020:         * License Header, with the fields enclosed by brackets [] replaced by
021:         * your own identifying information:
022:         * "Portions Copyrighted [year] [name of copyright owner]"
023:         * 
024:         * If you wish your version of this file to be governed by only the CDDL
025:         * or only the GPL Version 2, indicate your decision by adding
026:         * "[Contributor] elects to include this software in this distribution
027:         * under the [CDDL or GPL Version 2] license." If you do not indicate a
028:         * single choice of license, a recipient has the option to distribute
029:         * your version of this file under either the CDDL, the GPL Version 2 or
030:         * to extend the choice of license to its licensees as provided above.
031:         * However, if you add GPL Version 2 code and therefore, elected the GPL
032:         * Version 2 license, then the option applies only if the new code is
033:         * made subject to such option by the copyright holder.
034:         * 
035:         * Contributor(s):
036:         * 
037:         * Portions Copyrighted 2008 Sun Microsystems, Inc.
038:         */
039:        package org.netbeans.modules.css.gsf;
040:
041:        import java.util.List;
042:        import java.util.Set;
043:        import javax.swing.text.BadLocationException;
044:        import javax.swing.text.Document;
045:        import org.netbeans.api.lexer.LanguagePath;
046:        import org.netbeans.modules.gsf.api.CompilationInfo;
047:        import org.netbeans.modules.gsf.api.Formatter;
048:        import org.netbeans.api.lexer.Token;
049:        import org.netbeans.api.lexer.TokenHierarchy;
050:        import org.netbeans.api.lexer.TokenSequence;
051:        import org.netbeans.editor.BaseDocument;
052:        import org.netbeans.editor.Utilities;
053:        import org.netbeans.modules.css.lexer.api.CSSTokenId;
054:        import org.netbeans.modules.editor.indent.api.IndentUtils;
055:        import org.openide.util.Exceptions;
056:
057:        /**
058:         *
059:         * @author marek
060:         * 
061:         * @todo fix the section reformatting so it can reformat multiple embedded pieces of css
062:         */
063:        public class CSSFormatter implements  Formatter {
064:
065:            public boolean needsParserResult() {
066:                return false;
067:            }
068:
069:            public void reformat(Document doc, int startOffset, int endOffset,
070:                    CompilationInfo info) {
071:                reindent(doc, startOffset, endOffset);
072:            }
073:
074:            public void reindent(Document document, int startOffset,
075:                    int endOffset) {
076:                BaseDocument bdoc = (BaseDocument) document;
077:
078:                //XXX still using the old formatting API, the new one is a subject of change in next version of netbeans.
079:                org.netbeans.editor.Formatter editorFormatter = bdoc
080:                        .getFormatter();
081:                //        try {
082:                //            editorFormatter.indentLock();
083:                try {
084:                    int indentLevel = IndentUtils.indentLevelSize(document);
085:                    int lastLine = Utilities.getLineOffset(bdoc, bdoc
086:                            .getLength());
087:                    int indents[] = new int[lastLine + 1];
088:                    int indentShift[] = new int[lastLine + 1];
089:                    boolean formattableLines[] = new boolean[lastLine + 1];
090:                    bdoc.atomicLock();
091:                    int lineBegin = Utilities.getRowStart(bdoc, startOffset);
092:                    //int firstLineOffset = Utilities.getLineOffset(bdoc, startOffset);
093:                    //int lastLineOffset = Utilities.getLineOffset(bdoc, endOffset);
094:
095:                    //XXX wrong impl - it needs to operate on multiple token sequences???
096:                    //does the infrastructure call me separately for each ts or just once?
097:                    TokenHierarchy th = TokenHierarchy.get(bdoc);
098:
099:                    for (LanguagePath languagePath : (Set<LanguagePath>) th
100:                            .languagePaths()) {
101:                        if (languagePath.innerLanguage() == CSSTokenId
102:                                .language()) {
103:                            for (TokenSequence ts : (List<TokenSequence>) th
104:                                    .tokenSequenceList(languagePath, 0, bdoc
105:                                            .getLength())) {
106:                                TextBounds tsBounds = findTokenSequenceBounds(
107:                                        bdoc, ts);
108:
109:                                if (tsBounds.getAbsoluteEnd() < startOffset
110:                                        || tsBounds.getAbsoluteStart() > endOffset
111:                                        || tsBounds.getStartPos() == -1) { // empty CSS section
112:                                    continue;
113:                                }
114:
115:                                if (startOffset == endOffset) {
116:                                    //enter pressed - indent just the line under cursor
117:                                    if (lineBegin == 1) {
118:                                        //pressed on first line - do not indent
119:                                        return;
120:                                    }
121:
122:                                    //go back and find first line with ident(ifier) or '{' char - and indent accordingly 
123:                                    // ident = 0
124:                                    // { = +1
125:                                    ts.move(lineBegin);
126:                                    while (ts.movePrevious()) {
127:                                        Token t = ts.token();
128:                                        if (t.id() == CSSTokenId.IDENT
129:                                                || t.id() == CSSTokenId.RBRACE) {
130:                                            //we are on a line with css rule item e.g. color:red; 
131:                                            //where the property name is of IDENT token type
132:                                            //..or.. we are just after end of a rule ("}" token)
133:                                            //=> use the same indent level
134:                                            int indent = Utilities
135:                                                    .getRowIndent(bdoc, t
136:                                                            .offset(th));
137:                                            editorFormatter.changeRowIndent(
138:                                                    bdoc, lineBegin, indent);
139:                                            return;
140:                                        } else if (t.id() == CSSTokenId.LBRACE) {
141:                                            // just rule beginning before current position - increase indent
142:                                            int indent = Utilities
143:                                                    .getRowIndent(bdoc, t
144:                                                            .offset(th));
145:
146:                                            //XXX or should I use the this.indentSize() instead????
147:                                            editorFormatter.changeRowIndent(
148:                                                    bdoc, lineBegin, indent
149:                                                            + indentLevel);
150:                                            return;
151:                                        }
152:                                    }
153:                                } else {
154:                                    //user peformed reformat on a selection or the whole text
155:
156:                                    int firstLineOffset = tsBounds
157:                                            .getStartLine();
158:                                    int lastLineOffset = tsBounds.getEndLine();
159:
160:                                    int firstLineOriginalIndent = Utilities
161:                                            .getRowIndent(bdoc, tsBounds
162:                                                    .getStartPos());
163:
164:                                    for (int line = firstLineOffset; line <= lastLineOffset; line++) {
165:                                        indentShift[line] = firstLineOriginalIndent;
166:                                        formattableLines[line] = true;
167:                                    }
168:
169:                                    //contains <line_start_offset; indent_level> pairs
170:                                    int indent = 0;
171:                                    for (int line = firstLineOffset; line <= lastLineOffset; line++) {
172:                                        int indents_index = line;
173:                                        if (indents_index == 0) {
174:                                            //do we start inside a rule?
175:
176:                                            Token[] ruleBoundaries = findRule(
177:                                                    ts, lineBegin);
178:                                            if (ruleBoundaries != null) {
179:                                                //yes, we start in a rule
180:                                                indent = Utilities
181:                                                        .getRowIndent(
182:                                                                bdoc,
183:                                                                ruleBoundaries[0]
184:                                                                        .offset(th));
185:                                                //and add the content indent
186:                                                indent = indent + indentLevel;
187:                                            }
188:                                        }
189:
190:                                        //identify the line content
191:                                        int lStart = Utilities
192:                                                .getRowStartFromLineOffset(
193:                                                        bdoc, line);
194:                                        int lEnd = Utilities.getRowEnd(bdoc,
195:                                                lStart);
196:                                        ts.move(lStart);
197:                                        int ruleStart = -1;
198:                                        int ruleEnd = -1;
199:                                        int ident = -1;
200:                                        while (ts.moveNext()
201:                                                && ts.offset() < lEnd) {
202:                                            Token t = ts.token();
203:                                            if (t.id() == CSSTokenId.LBRACE) {
204:                                                ruleStart = ts.offset();
205:                                            } else if (t.id() == CSSTokenId.RBRACE) {
206:                                                ruleEnd = ts.offset();
207:                                            } else if (t.id() == CSSTokenId.IDENT) {
208:                                                ident = ts.offset();
209:                                            }
210:                                        }
211:
212:                                        if (ruleStart != -1 && ruleEnd == -1) {
213:                                            //rule started
214:                                            indents[indents_index] = indent;
215:                                            //increase indent of the content
216:                                            indent = indent + indentLevel;
217:                                        } else if (ruleStart == -1
218:                                                && ruleEnd != -1) {
219:                                            //rule ended
220:
221:                                            //test if there is an identifier before the rule closing symbol
222:                                            //in such case do not lower the indent of the line
223:                                            if (ident != -1 && ident < ruleEnd) {
224:                                                //sg. like "color: red; }" on the line
225:                                                indents[indents_index] = indent;
226:                                                indent = indent - indentLevel;
227:                                            } else {
228:                                                indent = indent - indentLevel;
229:                                                indents[indents_index] = indent;
230:                                            }
231:                                        } else {
232:                                            //just text inside or outside of a rule
233:                                            indents[indents_index] = indent;
234:                                        }
235:
236:                                    }
237:                                }
238:                            }
239:                        }
240:
241:                    }
242:
243:                    int firstLineWithinFormattingRange = Utilities
244:                            .getLineOffset(bdoc, startOffset);
245:                    int lastLineWithinFormattingRange = Utilities
246:                            .getLineOffset(bdoc, endOffset);
247:
248:                    //apply the formatting
249:                    for (int line = firstLineWithinFormattingRange; line <= lastLineWithinFormattingRange; line++) {
250:                        if (formattableLines[line]) {
251:                            int lStart = Utilities.getRowStartFromLineOffset(
252:                                    bdoc, line);
253:                            editorFormatter.changeRowIndent(bdoc, lStart,
254:                                    indents[line] + indentShift[line]);
255:                        }
256:                    }
257:
258:                } catch (BadLocationException ex) {
259:                    Exceptions.printStackTrace(ex);
260:                } finally {
261:                    bdoc.atomicUnlock();
262:                }
263:                //        } finally {
264:                //            editorFormatter.indentUnlock();
265:                //        }
266:
267:            }
268:
269:            /** 
270:             * @param ts - tokenSequence
271:             * @param offset - where to start the search
272:             * @return an array of two Tokens which represents the curly brackets of
273:             * css rule.
274:             */
275:            private Token[] findRule(TokenSequence ts, int offset) {
276:                ts.move(offset);
277:                while (ts.movePrevious()) {
278:                    Token t = ts.token();
279:                    if (t.id() == CSSTokenId.RBRACE) {
280:                        //we found } => we are out of a rule
281:                        return null;
282:                    } else if (t.id() == CSSTokenId.LBRACE) {
283:                        //we are in a rule -> find the end of the rule
284:                        while (ts.moveNext()) {
285:                            Token t2 = ts.token();
286:                            if (t2.id() == CSSTokenId.RBRACE) {
287:                                //end of the rule
288:                                return new Token[] { t, t2 };
289:                            }
290:                        }
291:
292:                        break;
293:                    }
294:
295:                }
296:                //din't find anything reasonable
297:                return null;
298:            }
299:
300:            public int indentSize() {
301:                return 4;
302:            }
303:
304:            public int hangingIndentSize() {
305:                return 4;
306:            }
307:
308:            private TextBounds findTokenSequenceBounds(BaseDocument doc,
309:                    TokenSequence tokenSequence) throws BadLocationException {
310:                tokenSequence.moveStart();
311:                tokenSequence.moveNext();
312:                int absoluteStart = tokenSequence.offset();
313:                tokenSequence.moveEnd();
314:                tokenSequence.movePrevious();
315:                int absoluteEnd = tokenSequence.offset()
316:                        + tokenSequence.token().length();
317:
318:                //         trim whitespaces from both ends
319:                while (isWSToken(tokenSequence.token())) {
320:                    if (!tokenSequence.movePrevious()) {
321:                        return new TextBounds(absoluteStart, absoluteEnd); // a block of empty text
322:                    }
323:                }
324:
325:                int whiteSpaceSuffixLen = 0;
326:
327:                while (Character.isWhitespace(tokenSequence.token().text()
328:                        .charAt(
329:                                tokenSequence.token().length() - 1
330:                                        - whiteSpaceSuffixLen))) {
331:                    whiteSpaceSuffixLen++;
332:                }
333:
334:                int languageBlockEnd = tokenSequence.offset()
335:                        + tokenSequence.token().length() - whiteSpaceSuffixLen;
336:
337:                tokenSequence.moveStart();
338:
339:                do {
340:                    tokenSequence.moveNext();
341:                } while (isWSToken(tokenSequence.token()));
342:
343:                int whiteSpacePrefixLen = 0;
344:
345:                while (Character.isWhitespace(tokenSequence.token().text()
346:                        .charAt(whiteSpacePrefixLen))) {
347:                    whiteSpacePrefixLen++;
348:                }
349:
350:                int languageBlockStart = tokenSequence.offset()
351:                        + whiteSpacePrefixLen;
352:                int firstLineOfTheLanguageBlock = Utilities.getLineOffset(doc,
353:                        languageBlockStart);
354:                int lastLineOfTheLanguageBlock = Utilities.getLineOffset(doc,
355:                        languageBlockEnd);
356:                return new TextBounds(absoluteStart, absoluteEnd,
357:                        languageBlockStart, languageBlockEnd,
358:                        firstLineOfTheLanguageBlock, lastLineOfTheLanguageBlock);
359:            }
360:
361:            protected boolean isWSToken(Token token) {
362:                return isOnlyWhiteSpaces(token.text());
363:            }
364:
365:            protected boolean isOnlyWhiteSpaces(CharSequence txt) {
366:                for (int i = 0; i < txt.length(); i++) {
367:                    if (!Character.isWhitespace(txt.charAt(i))) {
368:                        return false;
369:                    }
370:                }
371:
372:                return true;
373:            }
374:
375:            public static class TextBounds {
376:
377:                private int absoluteStart; // start offset regardless of white spaces
378:                private int absoluteEnd; // end --
379:                private int startPos = -1;
380:                private int endPos = -1;
381:                private int startLine = -1;
382:                private int endLine = -1;
383:
384:                public TextBounds(int absoluteStart, int absoluteEnd) {
385:                    this .absoluteStart = absoluteStart;
386:                    this .absoluteEnd = absoluteEnd;
387:                }
388:
389:                public TextBounds(int absoluteStart, int absoluteEnd,
390:                        int startPos, int endPos, int startLine, int endLine) {
391:                    this .absoluteStart = absoluteStart;
392:                    this .absoluteEnd = absoluteEnd;
393:                    this .startPos = startPos;
394:                    this .endPos = endPos;
395:                    this .startLine = startLine;
396:                    this .endLine = endLine;
397:                }
398:
399:                public int getEndPos() {
400:                    return endPos;
401:                }
402:
403:                public int getStartPos() {
404:                    return startPos;
405:                }
406:
407:                public int getEndLine() {
408:                    return endLine;
409:                }
410:
411:                public int getStartLine() {
412:                    return startLine;
413:                }
414:
415:                public int getAbsoluteEnd() {
416:                    return absoluteEnd;
417:                }
418:
419:                public int getAbsoluteStart() {
420:                    return absoluteStart;
421:                }
422:
423:                @Override
424:                public String toString() {
425:                    return "pos " + startPos + "-" + endPos + ", lines "
426:                            + startLine + "-" + endLine; //NOI18N
427:                }
428:            }
429:        }
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.