1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
|
/* ====================================================================
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==================================================================== */
package org.apache.poi.xwpf.usermodel;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import org.apache.poi.common.usermodel.PictureType;
import org.apache.poi.ooxml.POIXMLDocumentPart;
import org.apache.poi.ooxml.POIXMLException;
import org.apache.poi.ooxml.POIXMLRelation;
import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.openxml4j.opc.PackagePart;
import org.apache.poi.util.IOUtils;
import org.apache.poi.util.Internal;
import org.apache.xmlbeans.XmlCursor;
import org.apache.xmlbeans.XmlObject;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTHdrFtr;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTP;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTRow;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTTbl;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTTc;
/**
* Parent of XWPF headers and footers
*/
public abstract class XWPFHeaderFooter extends POIXMLDocumentPart implements IBody {
List<XWPFParagraph> paragraphs = new ArrayList<>();
List<XWPFTable> tables = new ArrayList<>();
List<XWPFPictureData> pictures = new ArrayList<>();
List<IBodyElement> bodyElements = new ArrayList<>();
CTHdrFtr headerFooter;
XWPFDocument document;
XWPFHeaderFooter(XWPFDocument doc, CTHdrFtr hdrFtr) {
if (doc == null) {
throw new NullPointerException();
}
document = doc;
headerFooter = hdrFtr;
readHdrFtr();
}
protected XWPFHeaderFooter() {
headerFooter = CTHdrFtr.Factory.newInstance();
readHdrFtr();
}
/**
* @since by POI 3.14-Beta1
*/
public XWPFHeaderFooter(POIXMLDocumentPart parent, PackagePart part) {
super(parent, part);
final POIXMLDocumentPart p = getParent();
if (!(p instanceof XWPFDocument)) {
throw new IllegalArgumentException("Had unexpected type of parent: " + (p == null ? "<null>" : p.getClass()));
}
this.document = (XWPFDocument) p;
}
@Override
protected void onDocumentRead() throws IOException {
for (POIXMLDocumentPart poixmlDocumentPart : getRelations()) {
if (poixmlDocumentPart instanceof XWPFPictureData) {
XWPFPictureData xwpfPicData = (XWPFPictureData) poixmlDocumentPart;
pictures.add(xwpfPicData);
document.registerPackagePictureData(xwpfPicData);
}
}
}
@Internal
public CTHdrFtr _getHdrFtr() {
return headerFooter;
}
@Override
public List<IBodyElement> getBodyElements() {
return Collections.unmodifiableList(bodyElements);
}
/**
* Returns the paragraph(s) that holds
* the text of the header or footer.
* Normally there is only the one paragraph, but
* there could be more in certain cases, or
* a table.
*/
@Override
public List<XWPFParagraph> getParagraphs() {
return Collections.unmodifiableList(paragraphs);
}
/**
* Return the table(s) that holds the text
* of the header or footer, for complex cases
* where a paragraph isn't used.
* Normally there's just one paragraph, but some
* complex headers/footers have a table or two
* in addition.
*/
@Override
public List<XWPFTable> getTables() throws ArrayIndexOutOfBoundsException {
return Collections.unmodifiableList(tables);
}
/**
* Returns the textual content of the header/footer,
* by flattening out the text of its paragraph(s)
*/
public String getText() {
StringBuilder t = new StringBuilder(64);
//TODO: simplify this to get ibody elements in order
for (XWPFParagraph paragraph : paragraphs) {
if (!paragraph.isEmpty()) {
String text = paragraph.getText();
if (text != null && text.length() > 0) {
t.append(text);
t.append('\n');
}
}
}
for (XWPFTable table : tables) {
String text = table.getText();
if (text != null && text.length() > 0) {
t.append(text);
t.append('\n');
}
}
for (IBodyElement bodyElement : getBodyElements()) {
if (bodyElement instanceof XWPFSDT) {
t.append(((XWPFSDT) bodyElement).getContent().getText()).append('\n');
}
}
return t.toString();
}
/**
* set a new headerFooter
*/
public void setHeaderFooter(CTHdrFtr headerFooter) {
this.headerFooter = headerFooter;
readHdrFtr();
}
/**
* if there is a corresponding {@link XWPFTable} of the parameter ctTable in the tableList of this header
* the method will return this table
* if there is no corresponding {@link XWPFTable} the method will return null
*/
@Override
public XWPFTable getTable(CTTbl ctTable) {
for (XWPFTable table : tables) {
if (table == null)
return null;
if (table.getCTTbl().equals(ctTable))
return table;
}
return null;
}
@Override
public XWPFParagraph getParagraph(CTP p) {
for (XWPFParagraph paragraph : paragraphs) {
if (paragraph.getCTP().equals(p))
return paragraph;
}
return null;
}
/**
* Returns the paragraph that holds
* the text of the header or footer.
*/
@Override
public XWPFParagraph getParagraphArray(int pos) {
if(pos >= 0 && pos<paragraphs.size()){
return paragraphs.get(pos);
}
return null;
}
/**
* get a List of all Paragraphs
*
* @return a list of {@link XWPFParagraph}
*/
public List<XWPFParagraph> getListParagraph() {
return paragraphs;
}
public List<XWPFPictureData> getAllPictures() {
return Collections.unmodifiableList(pictures);
}
/**
* get all Pictures in this package
*
* @return all Pictures in this package
*/
public List<XWPFPictureData> getAllPackagePictures() {
return document.getAllPackagePictures();
}
/**
* Adds a picture to the document.
*
* @param pictureData The picture data
* @param format The format of the picture.
* @return the index to this picture (0 based), the added picture can be obtained from {@link #getAllPictures()} .
* @throws InvalidFormatException If the format of the picture is not known.
* @see #addPictureData(byte[], PictureType)
*/
public String addPictureData(byte[] pictureData, int format) throws InvalidFormatException {
return addPictureData(pictureData, PictureType.findByOoxmlId(format));
}
/**
* Adds a picture to the document.
*
* @param pictureData The picture data
* @param pictureType The {@link PictureType} of the picture.
* @return the index to this picture (0 based), the added picture can be obtained from {@link #getAllPictures()} .
* @throws InvalidFormatException If the format of the picture is not known.
* @since POI 5.2.3
*/
public String addPictureData(byte[] pictureData, PictureType pictureType) throws InvalidFormatException {
if (pictureType == null) {
throw new InvalidFormatException("pictureType is not supported");
}
XWPFPictureData xwpfPicData = document.findPackagePictureData(pictureData);
POIXMLRelation relDesc = XWPFPictureData.RELATIONS[pictureType.ooxmlId];
if (xwpfPicData == null) {
/* Part doesn't exist, create a new one */
int idx = document.getNextPicNameNumber(pictureType);
xwpfPicData = (XWPFPictureData) createRelationship(relDesc, XWPFFactory.getInstance(), idx);
/* write bytes to new part */
PackagePart picDataPart = xwpfPicData.getPackagePart();
try (OutputStream out = picDataPart.getOutputStream()) {
out.write(pictureData);
} catch (IOException e) {
throw new POIXMLException(e);
}
document.registerPackagePictureData(xwpfPicData);
pictures.add(xwpfPicData);
return getRelationId(xwpfPicData);
} else if (!getRelations().contains(xwpfPicData)) {
/*
* Part already existed, but was not related so far. Create
* relationship to the already existing part and update
* POIXMLDocumentPart data.
*/
// TODO add support for TargetMode.EXTERNAL relations.
RelationPart rp = addRelation(null, XWPFRelation.IMAGES, xwpfPicData);
pictures.add(xwpfPicData);
return rp.getRelationship().getId();
} else {
/* Part already existed, get relation id and return it */
return getRelationId(xwpfPicData);
}
}
/**
* Adds a picture to the document.
*
* @param is The stream to read image from
* @param format The format of the picture.
* @return the index to this picture (0 based), the added picture can be obtained from {@link #getAllPictures()} .
* @throws InvalidFormatException If the format of the picture is not known.
* @throws IOException If reading the picture-data from the stream fails.
* @see #addPictureData(InputStream, PictureType)
*/
public String addPictureData(InputStream is, int format) throws InvalidFormatException, IOException {
byte[] data = IOUtils.toByteArrayWithMaxLength(is, XWPFPictureData.getMaxImageSize());
return addPictureData(data, format);
}
/**
* Adds a picture to the document.
*
* @param is The stream to read image from
* @param pictureType The {@link PictureType} of the picture.
* @return the index to this picture (0 based), the added picture can be obtained from {@link #getAllPictures()} .
* @throws InvalidFormatException If the format of the picture is not known.
* @throws IOException If reading the picture-data from the stream fails.
* @since POI 5.2.3
*/
public String addPictureData(InputStream is, PictureType pictureType) throws InvalidFormatException, IOException {
byte[] data = IOUtils.toByteArrayWithMaxLength(is, XWPFPictureData.getMaxImageSize());
return addPictureData(data, pictureType);
}
/**
* returns the PictureData by blipID
*
* @return XWPFPictureData of a specificID
*/
public XWPFPictureData getPictureDataByID(String blipID) {
POIXMLDocumentPart relatedPart = getRelationById(blipID);
if (relatedPart instanceof XWPFPictureData) {
return (XWPFPictureData) relatedPart;
}
return null;
}
/**
* Adds a new paragraph at the end of the header or footer
*
* @return new {@link XWPFParagraph} object
*/
public XWPFParagraph createParagraph() {
XWPFParagraph paragraph = new XWPFParagraph(headerFooter.addNewP(), this);
paragraphs.add(paragraph);
bodyElements.add(paragraph);
return paragraph;
}
/**
* Adds a new table at the end of the header or footer
*
* @param rows - number of rows in the table
* @param cols - number of columns in the table
* @return new {@link XWPFTable} object
*/
public XWPFTable createTable(int rows, int cols) {
XWPFTable table = new XWPFTable(headerFooter.addNewTbl(), this, rows, cols);
tables.add(table);
bodyElements.add(table);
return table;
}
/**
* Removes a specific paragraph from this header / footer
*
* @param paragraph - {@link XWPFParagraph} object to remove
*/
public void removeParagraph(XWPFParagraph paragraph) {
if (paragraphs.contains(paragraph)) {
CTP ctP = paragraph.getCTP();
try (XmlCursor c = ctP.newCursor()) {
c.removeXml();
}
paragraphs.remove(paragraph);
bodyElements.remove(paragraph);
}
}
/**
* Removes a specific table from this header / footer
*
* @param table - {@link XWPFTable} object to remove
*/
public void removeTable(XWPFTable table) {
if (tables.contains(table)) {
CTTbl ctTbl = table.getCTTbl();
try (XmlCursor c = ctTbl.newCursor()) {
c.removeXml();
}
tables.remove(table);
bodyElements.remove(table);
}
}
/**
* Clears all paragraphs and tables from this header / footer
*/
public void clearHeaderFooter() {
try (XmlCursor c = headerFooter.newCursor()) {
c.removeXmlContents();
}
paragraphs.clear();
tables.clear();
bodyElements.clear();
}
/**
* add a new paragraph at position of the cursor
*
* @return the inserted paragraph
*/
@Override
public XWPFParagraph insertNewParagraph(XmlCursor cursor) {
if (isCursorInHdrF(cursor)) {
String uri = CTP.type.getName().getNamespaceURI();
String localPart = "p";
cursor.beginElement(localPart, uri);
cursor.toParent();
CTP p = (CTP) cursor.getObject();
XWPFParagraph newP = new XWPFParagraph(p, this);
XmlObject o = null;
while (!(o instanceof CTP) && (cursor.toPrevSibling())) {
o = cursor.getObject();
}
if ((!(o instanceof CTP)) || o == p) {
paragraphs.add(0, newP);
} else {
int pos = paragraphs.indexOf(getParagraph((CTP) o)) + 1;
paragraphs.add(pos, newP);
}
int i = 0;
try (final XmlCursor p2 = p.newCursor()) {
cursor.toCursor(p2);
}
while (cursor.toPrevSibling()) {
o = cursor.getObject();
if (o instanceof CTP || o instanceof CTTbl)
i++;
}
bodyElements.add(i, newP);
try(final XmlCursor p3 = p.newCursor()) {
cursor.toCursor(p3);
cursor.toEndToken();
}
return newP;
}
return null;
}
/**
* @return the inserted table
*/
@Override
public XWPFTable insertNewTbl(final XmlCursor cursor) {
if (isCursorInHdrF(cursor)) {
String uri = CTTbl.type.getName().getNamespaceURI();
String localPart = "tbl";
cursor.beginElement(localPart, uri);
cursor.toParent();
CTTbl t = (CTTbl) cursor.getObject();
XWPFTable newT = new XWPFTable(t, this);
cursor.removeXmlContents();
XmlObject o = null;
while (!(o instanceof CTTbl) && (cursor.toPrevSibling())) {
o = cursor.getObject();
}
if (!(o instanceof CTTbl)) {
tables.add(0, newT);
} else {
int pos = tables.indexOf(getTable((CTTbl) o)) + 1;
tables.add(pos, newT);
}
int i = 0;
try (final XmlCursor cursor2 = t.newCursor()) {
while (cursor2.toPrevSibling()) {
o = cursor2.getObject();
if (o instanceof CTP || o instanceof CTTbl) {
i++;
}
}
}
bodyElements.add(i, newT);
try(final XmlCursor cursor3 = t.newCursor()) {
cursor.toCursor(cursor3);
cursor.toEndToken();
}
return newT;
}
return null;
}
/**
* verifies that cursor is on the right position
*/
private boolean isCursorInHdrF(XmlCursor cursor) {
try (XmlCursor verify = cursor.newCursor()) {
verify.toParent();
return (verify.getObject() == this.headerFooter);
}
}
public POIXMLDocumentPart getOwner() {
return this;
}
/**
* Returns the table at position pos
*/
@Override
public XWPFTable getTableArray(int pos) {
if (pos >= 0 && pos < tables.size()) {
return tables.get(pos);
}
return null;
}
/**
* inserts an existing XWPFTable to the arrays bodyElements and tables
*/
@Override
public void insertTable(int pos, XWPFTable table) {
bodyElements.add(pos, table);
int i = 0;
for (CTTbl tbl : headerFooter.getTblArray()) {
if (tbl == table.getCTTbl()) {
break;
}
i++;
}
tables.add(i, table);
}
public void readHdrFtr() {
bodyElements = new ArrayList<>();
paragraphs = new ArrayList<>();
tables = new ArrayList<>();
// parse the document with cursor and add
// the XmlObject to its lists
try (XmlCursor cursor = headerFooter.newCursor()) {
cursor.selectPath("./*");
while (cursor.toNextSelection()) {
XmlObject o = cursor.getObject();
if (o instanceof CTP) {
XWPFParagraph p = new XWPFParagraph((CTP) o, this);
paragraphs.add(p);
bodyElements.add(p);
}
if (o instanceof CTTbl) {
XWPFTable t = new XWPFTable((CTTbl) o, this, false);
tables.add(t);
bodyElements.add(t);
}
}
}
}
/**
* get the TableCell which belongs to the TableCell
*/
@Override
public XWPFTableCell getTableCell(CTTc cell) {
XmlObject o;
CTRow row;
try (XmlCursor cursor = cell.newCursor()) {
cursor.toParent();
o = cursor.getObject();
if (!(o instanceof CTRow)) {
return null;
}
row = (CTRow) o;
cursor.toParent();
o = cursor.getObject();
}
if (!(o instanceof CTTbl)) {
return null;
}
CTTbl tbl = (CTTbl) o;
XWPFTable table = getTable(tbl);
if (table == null) {
return null;
}
XWPFTableRow tableRow = table.getRow(row);
return tableRow.getTableCell(cell);
}
@Override
public XWPFDocument getXWPFDocument() {
if (document != null) {
return document;
} else {
return (XWPFDocument) getParent();
}
}
public void setXWPFDocument(XWPFDocument doc) {
document = doc;
}
/**
* returns the Part, to which the body belongs, which you need for adding relationship to other parts
*/
@Override
public POIXMLDocumentPart getPart() {
return this;
}
@Override
protected void prepareForCommit() {
// must contain at least an empty paragraph
if (bodyElements.isEmpty()) {
createParagraph();
}
// Cells must contain at least an empty paragraph
for (XWPFTable tbl : tables) {
for (XWPFTableRow row : tbl.tableRows) {
for (XWPFTableCell cell : row.getTableCells()) {
if (cell.getBodyElements().isEmpty()) {
cell.addParagraph();
}
}
}
}
super.prepareForCommit();
}
}
|