Source Code Cross Referenced for PdfName.java in  » PDF » PDFClown-0.0.5 » it » stefanochizzolini » clown » objects » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » PDF » PDFClown 0.0.5 » it.stefanochizzolini.clown.objects 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:          Copyright © 2006,2007 Stefano Chizzolini. http://clown.stefanochizzolini.it
003:
004:          Contributors:
005:         * Stefano Chizzolini (original code developer, http://www.stefanochizzolini.it):
006:              contributed code is Copyright © 2006,2007 by Stefano Chizzolini.
007:
008:          This file should be part of the source code distribution of "PDF Clown library"
009:          (the Program): see the accompanying README files for more info.
010:
011:          This Program is free software; you can redistribute it and/or modify it under
012:          the terms of the GNU General Public License as published by the Free Software
013:          Foundation; either version 2 of the License, or (at your option) any later version.
014:
015:          This Program is distributed in the hope that it will be useful, but WITHOUT ANY
016:          WARRANTY, either expressed or implied; without even the implied warranty of
017:          MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the License for more details.
018:
019:          You should have received a copy of the GNU General Public License along with this
020:          Program (see README files); if not, go to the GNU website (http://www.gnu.org/).
021:
022:          Redistribution and use, with or without modification, are permitted provided that such
023:          redistributions retain the above copyright notice, license and disclaimer, along with
024:          this list of conditions.
025:         */
026:
027:        package it.stefanochizzolini.clown.objects;
028:
029:        import it.stefanochizzolini.clown.files.File;
030:
031:        import java.util.regex.Matcher;
032:        import java.util.regex.Pattern;
033:
034:        /**
035:         PDF name object [PDF:1.6:3.2.4].
036:         */
037:        /*
038:         NOTE: As name objects are atomic symbols uniquely defined by sequences of characters,
039:         the bytes making up the name are never treated as text, always keeping them escaped.
040:         */
041:        public final class PdfName extends PdfAtomicObject<String> {
042:            // <class>
043:            // <static>
044:            // <fields>
045:            /*
046:              NOTE: Name lexical conventions prescribe that the following reserved characters
047:              are to be escaped when placed inside names' character sequences:
048:                - delimiters;
049:                - whitespaces;
050:                - '#' (number sign character).
051:             */
052:            private static final Pattern EscapedPattern = Pattern
053:                    .compile("#([\\da-fA-F]{2})");
054:            private static final Pattern UnescapedPattern = Pattern
055:                    .compile("[\\s\\(\\)<>\\[\\]{}/%#]");
056:
057:            public static final PdfName A85 = new PdfName("A85");
058:            public static final PdfName AHx = new PdfName("AHx");
059:            public static final PdfName Annots = new PdfName("Annots");
060:            public static final PdfName Ascent = new PdfName("Ascent");
061:            public static final PdfName ASCII85Decode = new PdfName(
062:                    "ASCII85Decode");
063:            public static final PdfName ASCIIHexDecode = new PdfName(
064:                    "ASCIIHexDecode");
065:            public static final PdfName Author = new PdfName("Author");
066:            public static final PdfName BaseFont = new PdfName("BaseFont");
067:            public static final PdfName BitsPerComponent = new PdfName(
068:                    "BitsPerComponent");
069:            public static final PdfName BBox = new PdfName("BBox");
070:            public static final PdfName BPC = new PdfName("BPC");
071:            public static final PdfName CalGray = new PdfName("CalGray");
072:            public static final PdfName CalRGB = new PdfName("CalRGB");
073:            public static final PdfName CapHeight = new PdfName("CapHeight");
074:            public static final PdfName Catalog = new PdfName("Catalog");
075:            public static final PdfName CCF = new PdfName("CCF");
076:            public static final PdfName CCITTFaxDecode = new PdfName(
077:                    "CCITTFaxDecode");
078:            public static final PdfName CenterWindow = new PdfName(
079:                    "CenterWindow");
080:            public static final PdfName ColorSpace = new PdfName("ColorSpace");
081:            public static final PdfName Contents = new PdfName("Contents");
082:            public static final PdfName Count = new PdfName("Count");
083:            public static final PdfName CreationDate = new PdfName(
084:                    "CreationDate");
085:            public static final PdfName Creator = new PdfName("Creator");
086:            public static final PdfName Crypt = new PdfName("Crypt");
087:            public static final PdfName CS = new PdfName("CS");
088:            public static final PdfName D = new PdfName("D");
089:            public static final PdfName Descent = new PdfName("Descent");
090:            public static final PdfName Dest = new PdfName("Dest");
091:            public static final PdfName Dests = new PdfName("Dests");
092:            public static final PdfName DisplayDocTitle = new PdfName(
093:                    "DisplayDocTitle");
094:            public static final PdfName DCT = new PdfName("DCT");
095:            public static final PdfName DCTDecode = new PdfName("DCTDecode");
096:            public static final PdfName DeviceCMYK = new PdfName("DeviceCMYK");
097:            public static final PdfName DeviceGray = new PdfName("DeviceGray");
098:            public static final PdfName DeviceRGB = new PdfName("DeviceRGB");
099:            public static final PdfName Encoding = new PdfName("Encoding");
100:            public static final PdfName Encrypt = new PdfName("Encrypt");
101:            public static final PdfName F = new PdfName("F");
102:            public static final PdfName Filter = new PdfName("Filter");
103:            public static final PdfName First = new PdfName("First");
104:            public static final PdfName FirstChar = new PdfName("FirstChar");
105:            public static final PdfName Fit = new PdfName("Fit");
106:            public static final PdfName FitH = new PdfName("FitH");
107:            public static final PdfName FitV = new PdfName("FitV");
108:            public static final PdfName FitR = new PdfName("FitR");
109:            public static final PdfName FitB = new PdfName("FitB");
110:            public static final PdfName FitBH = new PdfName("FitBH");
111:            public static final PdfName FitBV = new PdfName("FitBV");
112:            public static final PdfName FitWindow = new PdfName("FitWindow");
113:            public static final PdfName Fl = new PdfName("Fl");
114:            public static final PdfName Flags = new PdfName("Flags");
115:            public static final PdfName FlateDecode = new PdfName("FlateDecode");
116:            public static final PdfName Font = new PdfName("Font");
117:            public static final PdfName FontBBox = new PdfName("FontBBox");
118:            public static final PdfName FontDescriptor = new PdfName(
119:                    "FontDescriptor");
120:            public static final PdfName FontFile = new PdfName("FontFile");
121:            public static final PdfName FontFile3 = new PdfName("FontFile3");
122:            public static final PdfName FontName = new PdfName("FontName");
123:            public static final PdfName Form = new PdfName("Form");
124:            public static final PdfName FullScreen = new PdfName("FullScreen");
125:            public static final PdfName H = new PdfName("H");
126:            public static final PdfName Height = new PdfName("Height");
127:            public static final PdfName HideMenubar = new PdfName("HideMenubar");
128:            public static final PdfName HideToolbar = new PdfName("HideToolbar");
129:            public static final PdfName HideWindowUI = new PdfName(
130:                    "HideWindowUI");
131:            public static final PdfName ICCBased = new PdfName("ICCBased");
132:            public static final PdfName Image = new PdfName("Image");
133:            public static final PdfName Info = new PdfName("Info");
134:            public static final PdfName ItalicAngle = new PdfName("ItalicAngle");
135:            public static final PdfName JBIG2Decode = new PdfName("JBIG2Decode");
136:            public static final PdfName JPXDecode = new PdfName("JPXDecode");
137:            public static final PdfName Keywords = new PdfName("Keywords");
138:            public static final PdfName Kids = new PdfName("Kids");
139:            public static final PdfName Lab = new PdfName("Lab");
140:            public static final PdfName Last = new PdfName("Last");
141:            public static final PdfName LastChar = new PdfName("LastChar");
142:            public static final PdfName Leading = new PdfName("Leading");
143:            public static final PdfName Length = new PdfName("Length");
144:            public static final PdfName Limits = new PdfName("Limits");
145:            public static final PdfName LZW = new PdfName("LZW");
146:            public static final PdfName LZWDecode = new PdfName("LZWDecode");
147:            public static final PdfName Matrix = new PdfName("Matrix");
148:            public static final PdfName MediaBox = new PdfName("MediaBox");
149:            public static final PdfName ModDate = new PdfName("ModDate");
150:            public static final PdfName Names = new PdfName("Names");
151:            public static final PdfName Next = new PdfName("Next");
152:            public static final PdfName OneColumn = new PdfName("OneColumn");
153:            public static final PdfName OpenType = new PdfName("OpenType");
154:            public static final PdfName Outlines = new PdfName("Outlines");
155:            public static final PdfName Page = new PdfName("Page");
156:            public static final PdfName PageLayout = new PdfName("PageLayout");
157:            public static final PdfName PageMode = new PdfName("PageMode");
158:            public static final PdfName Pages = new PdfName("Pages");
159:            public static final PdfName Parent = new PdfName("Parent");
160:            public static final PdfName Prev = new PdfName("Prev");
161:            public static final PdfName Producer = new PdfName("Producer");
162:            public static final PdfName Resources = new PdfName("Resources");
163:            public static final PdfName RGB = new PdfName("RGB");
164:            public static final PdfName RL = new PdfName("RL");
165:            public static final PdfName Root = new PdfName("Root");
166:            public static final PdfName RunLengthDecode = new PdfName(
167:                    "RunLengthDecode");
168:            public static final PdfName SinglePage = new PdfName("SinglePage");
169:            public static final PdfName Size = new PdfName("Size");
170:            public static final PdfName Subject = new PdfName("Subject");
171:            public static final PdfName Subtype = new PdfName("Subtype");
172:            public static final PdfName StemV = new PdfName("StemV");
173:            public static final PdfName Title = new PdfName("Title");
174:            public static final PdfName TrueType = new PdfName("TrueType");
175:            public static final PdfName Type = new PdfName("Type");
176:            public static final PdfName Type1 = new PdfName("Type1");
177:            public static final PdfName Type1C = new PdfName("Type1C");
178:            public static final PdfName TwoColumnLeft = new PdfName(
179:                    "TwoColumnLeft");
180:            public static final PdfName UseNone = new PdfName("UseNone");
181:            public static final PdfName UseOutlines = new PdfName("UseOutlines");
182:            public static final PdfName UseThumbs = new PdfName("UseThumbs");
183:            public static final PdfName ViewerPreferences = new PdfName(
184:                    "ViewerPreferences");
185:            public static final PdfName W = new PdfName("W");
186:            public static final PdfName Width = new PdfName("Width");
187:            public static final PdfName Widths = new PdfName("Widths");
188:            public static final PdfName WinAnsiEncoding = new PdfName(
189:                    "WinAnsiEncoding");
190:            public static final PdfName XObject = new PdfName("XObject");
191:            public static final PdfName XYZ = new PdfName("XYZ");
192:
193:            // </fields>
194:
195:            // <interface>
196:            // <public>
197:            public static String toPdf(String value) {
198:                return "/" + value;
199:            }
200:
201:            // </public>
202:            // </interface>
203:            // </static>
204:
205:            // <dynamic>
206:            // <constructors>
207:            public PdfName(String value) {
208:                setValue(value);
209:            }
210:
211:            /**
212:              For internal use only.
213:             */
214:            /*
215:              NOTE: To avoid ambiguities due to the presence of '#' characters,
216:              it's necessary to explicitly state when a name value has already been escaped.
217:              This is tipically the case of names parsed from a previously-serialized PDF file.
218:             */
219:            public PdfName(String value, boolean escaped) {
220:                if (escaped) {
221:                    super .setValue(value);
222:                } else {
223:                    this .setValue(value);
224:                }
225:            }
226:
227:            // </constructors>
228:
229:            // <interface>
230:            // <public>
231:            @Override
232:            public Object clone(File context) {
233:                // Shallow copy.
234:                PdfName clone = (PdfName) super .clone();
235:
236:                // Deep copy.
237:                /* NOTE: No mutable object to be cloned. */
238:
239:                return clone;
240:            }
241:
242:            @Override
243:            public boolean equals(Object object) {
244:                if (!(object instanceof  PdfName))
245:                    return false;
246:
247:                return getValue().equals(((PdfName) object).getValue());
248:            }
249:
250:            @Override
251:            public int hashCode() {
252:                return getValue().hashCode();
253:            }
254:
255:            @Override
256:            public void setValue(String value) {
257:                /*
258:                  NOTE: Before being accepted, any character sequence identifying a name MUST be normalized
259:                  escaping reserved characters.
260:                 */
261:                StringBuilder buffer = new StringBuilder();
262:                int index = 0;
263:                Matcher unescapedMatcher = UnescapedPattern.matcher(value);
264:                while (unescapedMatcher.find()) {
265:                    int start = unescapedMatcher.start();
266:                    if (start > index) {
267:                        buffer.append(value.substring(index, start));
268:                    }
269:
270:                    buffer.append('#' + Integer
271:                            .toHexString((int) unescapedMatcher.group(0)
272:                                    .charAt(0)));
273:
274:                    index = unescapedMatcher.end();
275:                }
276:                if (index < value.length()) {
277:                    buffer.append(value.substring(index));
278:                }
279:
280:                super .setValue(buffer.toString());
281:            }
282:
283:            @Override
284:            public String toPdf() {
285:                return PdfName.toPdf(getValue());
286:            }
287:
288:            @Override
289:            public String toString() {
290:                /*
291:                  NOTE: The textual representation of a name concerns unescaping reserved characters.
292:                 */
293:                String value = getValue();
294:                StringBuilder buffer = new StringBuilder();
295:                int index = 0;
296:                Matcher escapedMatcher = EscapedPattern.matcher(value);
297:                while (escapedMatcher.find()) {
298:                    int start = escapedMatcher.start();
299:                    if (start > index) {
300:                        buffer.append(value.substring(index, start));
301:                    }
302:
303:                    buffer.append((char) Integer.parseInt(escapedMatcher
304:                            .group(1), 16));
305:
306:                    index = escapedMatcher.end();
307:                }
308:                if (index < value.length()) {
309:                    buffer.append(value.substring(index));
310:                }
311:
312:                return buffer.toString();
313:            }
314:            // </public>
315:            // </interface>
316:            // </dynamic>
317:            // </class>
318:        }
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