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1
16
17 package org.apache.poi.hwpf.model;
18
19 import java.util.List  ;
20 import java.util.ArrayList ;
21 import java.io.OutputStream ;
22 import java.io.IOException ;
23
24 import org.apache.poi.poifs.common.POIFSConstants;
25 import org.apache.poi.util.LittleEndian;
26 import org.apache.poi.hwpf.model.io.*;
27 import org.apache.poi.hwpf.sprm.SprmBuffer;
28
29
34 public class CHPBinTable
35 {
36
37 protected ArrayList _textRuns = new ArrayList ();
38
39
40 public CHPBinTable()
41 {
42 }
43
44
53 public CHPBinTable(byte[] documentStream, byte[] tableStream, int offset,
54 int size, int fcMin)
55 {
56 PlexOfCps binTable = new PlexOfCps(tableStream, offset, size, 4);
57
58 int length = binTable.length();
59 for (int x = 0; x < length; x++)
60 {
61 GenericPropertyNode node = binTable.getProperty(x);
62
63 int pageNum = LittleEndian.getInt(node.getBytes());
64 int pageOffset = POIFSConstants.BIG_BLOCK_SIZE * pageNum;
65
66 CHPFormattedDiskPage cfkp = new CHPFormattedDiskPage(documentStream,
67 pageOffset, fcMin);
68
69 int fkpSize = cfkp.size();
70
71 for (int y = 0; y < fkpSize; y++)
72 {
73 _textRuns.add(cfkp.getCHPX(y));
74 }
75 }
76 }
77
78 public void adjustForDelete(int listIndex, int offset, int length)
79 {
80 int size = _textRuns.size();
81 int endMark = offset + length;
82 int endIndex = listIndex;
83
84 CHPX chpx = (CHPX)_textRuns.get(endIndex);
85 while (chpx.getEnd() < endMark)
86 {
87 chpx = (CHPX)_textRuns.get(++endIndex);
88 }
89 if (listIndex == endIndex)
90 {
91 chpx = (CHPX)_textRuns.get(endIndex);
92 chpx.setEnd((chpx.getEnd() - endMark) + offset);
93 }
94 else
95 {
96 chpx = (CHPX)_textRuns.get(listIndex);
97 chpx.setEnd(offset);
98 for (int x = listIndex + 1; x < endIndex; x++)
99 {
100 chpx = (CHPX)_textRuns.get(x);
101 chpx.setStart(offset);
102 chpx.setEnd(offset);
103 }
104 chpx = (CHPX)_textRuns.get(endIndex);
105 chpx.setEnd((chpx.getEnd() - endMark) + offset);
106 }
107
108 for (int x = endIndex + 1; x < size; x++)
109 {
110 chpx = (CHPX)_textRuns.get(x);
111 chpx.setStart(chpx.getStart() - length);
112 chpx.setEnd(chpx.getEnd() - length);
113 }
114 }
115
116 public void insert(int listIndex, int cpStart, SprmBuffer buf)
117 {
118 CHPX insertChpx = new CHPX(cpStart, cpStart, buf);
119 if (listIndex == _textRuns.size())
120 {
121 _textRuns.add(insertChpx);
122 }
123 else
124 {
125 CHPX chpx = (CHPX)_textRuns.get(listIndex);
126 if (chpx.getStart() < cpStart)
127 {
128 CHPX clone = new CHPX(cpStart, chpx.getEnd(), chpx.getSprmBuf());
129 chpx.setEnd(cpStart);
130
131 _textRuns.add(listIndex + 1, insertChpx);
132 _textRuns.add(listIndex + 2, clone);
133 }
134 else
135 {
136 _textRuns.add(listIndex, insertChpx);
137 }
138 }
139 }
140
141 public void adjustForInsert(int listIndex, int length)
142 {
143 int size = _textRuns.size();
144 CHPX chpx = (CHPX)_textRuns.get(listIndex);
145 chpx.setEnd(chpx.getEnd() + length);
146
147 for (int x = listIndex + 1; x < size; x++)
148 {
149 chpx = (CHPX)_textRuns.get(x);
150 chpx.setStart(chpx.getStart() + length);
151 chpx.setEnd(chpx.getEnd() + length);
152 }
153 }
154
155 public List getTextRuns()
156 {
157 return _textRuns;
158 }
159
160 public void writeTo(HWPFFileSystem sys, int fcMin)
161 throws IOException
162 {
163
164 HWPFOutputStream docStream = sys.getStream("WordDocument");
165 OutputStream tableStream = sys.getStream("1Table");
166
167 PlexOfCps binTable = new PlexOfCps(4);
168
169 int docOffset = docStream.getOffset();
171 int mod = docOffset % POIFSConstants.BIG_BLOCK_SIZE;
172 if (mod != 0)
173 {
174 byte[] padding = new byte[POIFSConstants.BIG_BLOCK_SIZE - mod];
175 docStream.write(padding);
176 }
177
178 docOffset = docStream.getOffset();
180 int pageNum = docOffset/POIFSConstants.BIG_BLOCK_SIZE;
181
182 int endingFc = ((PropertyNode)_textRuns.get(_textRuns.size() - 1)).getEnd();
184 endingFc += fcMin;
185
186
187 ArrayList overflow = _textRuns;
188 do
189 {
190 PropertyNode startingProp = (PropertyNode)overflow.get(0);
191 int start = startingProp.getStart() + fcMin;
192
193 CHPFormattedDiskPage cfkp = new CHPFormattedDiskPage();
194 cfkp.fill(overflow);
195
196 byte[] bufFkp = cfkp.toByteArray(fcMin);
197 docStream.write(bufFkp);
198 overflow = cfkp.getOverflow();
199
200 int end = endingFc;
201 if (overflow != null)
202 {
203 end = ((PropertyNode)overflow.get(0)).getStart() + fcMin;
204 }
205
206 byte[] intHolder = new byte[4];
207 LittleEndian.putInt(intHolder, pageNum++);
208 binTable.addProperty(new GenericPropertyNode(start, end, intHolder));
209
210 }
211 while (overflow != null);
212 tableStream.write(binTable.toByteArray());
213 }
214
215
216
217
218
219 }
220 |
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