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
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
|
//========================================================================
//
// TextOutputDev.h
//
// Copyright 1997-2003 Glyph & Cog, LLC
//
//========================================================================
//========================================================================
//
// Modified under the Poppler project - http://poppler.freedesktop.org
//
// All changes made under the Poppler project to this file are licensed
// under GPL version 2 or later
//
// Copyright (C) 2005-2007 Kristian Høgsberg <krh@redhat.com>
// Copyright (C) 2006 Ed Catmur <ed@catmur.co.uk>
// Copyright (C) 2007, 2008, 2011 Carlos Garcia Campos <carlosgc@gnome.org>
// Copyright (C) 2007 Adrian Johnson <ajohnson@redneon.com>
// Copyright (C) 2008, 2010 Albert Astals Cid <aacid@kde.org>
// Copyright (C) 2010 Brian Ewins <brian.ewins@gmail.com>
//
// To see a description of the changes please see the Changelog file that
// came with your tarball or type make ChangeLog if you are building from git
//
//========================================================================
#ifndef TEXTOUTPUTDEV_H
#define TEXTOUTPUTDEV_H
#ifdef USE_GCC_PRAGMAS
#pragma interface
#endif
#include "poppler-config.h"
#include <stdio.h>
#include "goo/gtypes.h"
#include "GfxFont.h"
#include "GfxState.h"
#include "OutputDev.h"
class GooString;
class GooList;
class Gfx;
class GfxFont;
class GfxState;
class UnicodeMap;
class AnnotLink;
class TextWord;
class TextPool;
class TextLine;
class TextLineFrag;
class TextBlock;
class TextFlow;
class TextWordList;
class TextPage;
class TextSelectionVisitor;
//------------------------------------------------------------------------
typedef void (*TextOutputFunc)(void *stream, char *text, int len);
enum SelectionStyle {
selectionStyleGlyph,
selectionStyleWord,
selectionStyleLine
};
//------------------------------------------------------------------------
// TextFontInfo
//------------------------------------------------------------------------
class TextFontInfo {
public:
TextFontInfo(GfxState *state);
~TextFontInfo();
GBool matches(GfxState *state);
GBool matches(TextFontInfo *fontInfo);
#if TEXTOUT_WORD_LIST
// Get the font name (which may be NULL).
GooString *getFontName() { return fontName; }
// Get font descriptor flags.
GBool isFixedWidth() { return flags & fontFixedWidth; }
GBool isSerif() { return flags & fontSerif; }
GBool isSymbolic() { return flags & fontSymbolic; }
GBool isItalic() { return flags & fontItalic; }
GBool isBold() { return flags & fontBold; }
#endif
private:
GfxFont *gfxFont;
#if TEXTOUT_WORD_LIST
GooString *fontName;
int flags;
#endif
friend class TextWord;
friend class TextPage;
friend class TextSelectionPainter;
};
//------------------------------------------------------------------------
// TextWord
//------------------------------------------------------------------------
class TextWord {
public:
// Constructor.
TextWord(GfxState *state, int rotA, double x0, double y0,
int charPosA, TextFontInfo *fontA, double fontSize);
// Destructor.
~TextWord();
// Add a character to the word.
void addChar(GfxState *state, double x, double y,
double dx, double dy, CharCode c, Unicode u);
// Merge <word> onto the end of <this>.
void merge(TextWord *word);
// Compares <this> to <word>, returning -1 (<), 0 (=), or +1 (>),
// based on a primary-axis comparison, e.g., x ordering if rot=0.
int primaryCmp(TextWord *word);
// Return the distance along the primary axis between <this> and
// <word>.
double primaryDelta(TextWord *word);
static int cmpYX(const void *p1, const void *p2);
void visitSelection(TextSelectionVisitor *visitor,
PDFRectangle *selection,
SelectionStyle style);
// Get the TextFontInfo object associated with this word.
TextFontInfo *getFontInfo() { return font; }
// Get the next TextWord on the linked list.
TextWord *getNext() { return next; }
#if TEXTOUT_WORD_LIST
int getLength() { return len; }
const Unicode *getChar(int idx) { return &text[idx]; }
GooString *getText();
GooString *getFontName() { return font->fontName; }
void getColor(double *r, double *g, double *b)
{ *r = colorR; *g = colorG; *b = colorB; }
void getBBox(double *xMinA, double *yMinA, double *xMaxA, double *yMaxA)
{ *xMinA = xMin; *yMinA = yMin; *xMaxA = xMax; *yMaxA = yMax; }
void getCharBBox(int charIdx, double *xMinA, double *yMinA,
double *xMaxA, double *yMaxA);
double getFontSize() { return fontSize; }
int getRotation() { return rot; }
int getCharPos() { return charPos; }
int getCharLen() { return charLen; }
GBool getSpaceAfter() { return spaceAfter; }
#endif
GBool isUnderlined() { return underlined; }
AnnotLink *getLink() { return link; }
double getEdge(int i) { return edge[i]; }
double getBaseline () { return base; }
GBool hasSpaceAfter () { return spaceAfter; }
TextWord* nextWord () { return next; };
private:
int rot; // rotation, multiple of 90 degrees
// (0, 1, 2, or 3)
double xMin, xMax; // bounding box x coordinates
double yMin, yMax; // bounding box y coordinates
double base; // baseline x or y coordinate
Unicode *text; // the text
CharCode *charcode; // glyph indices
double *edge; // "near" edge x or y coord of each char
// (plus one extra entry for the last char)
int len; // length of text and edge arrays
int size; // size of text and edge arrays
int charPos; // character position (within content stream)
int charLen; // number of content stream characters in
// this word
TextFontInfo *font; // font information
double fontSize; // font size
GBool spaceAfter; // set if there is a space between this
// word and the next word on the line
TextWord *next; // next word in line
#if TEXTOUT_WORD_LIST
double colorR, // word color
colorG,
colorB;
#endif
GBool underlined;
AnnotLink *link;
friend class TextPool;
friend class TextLine;
friend class TextBlock;
friend class TextFlow;
friend class TextWordList;
friend class TextPage;
friend class TextSelectionPainter;
friend class TextSelectionDumper;
};
//------------------------------------------------------------------------
// TextPool
//------------------------------------------------------------------------
class TextPool {
public:
TextPool();
~TextPool();
TextWord *getPool(int baseIdx) { return pool[baseIdx - minBaseIdx]; }
void setPool(int baseIdx, TextWord *p) { pool[baseIdx - minBaseIdx] = p; }
int getBaseIdx(double base);
void addWord(TextWord *word);
private:
int minBaseIdx; // min baseline bucket index
int maxBaseIdx; // max baseline bucket index
TextWord **pool; // array of linked lists, one for each
// baseline value (multiple of 4 pts)
TextWord *cursor; // pointer to last-accessed word
int cursorBaseIdx; // baseline bucket index of last-accessed word
friend class TextBlock;
friend class TextPage;
};
struct TextFlowData;
//------------------------------------------------------------------------
// TextLine
//------------------------------------------------------------------------
class TextLine {
public:
TextLine(TextBlock *blkA, int rotA, double baseA);
~TextLine();
void addWord(TextWord *word);
// Return the distance along the primary axis between <this> and
// <line>.
double primaryDelta(TextLine *line);
// Compares <this> to <line>, returning -1 (<), 0 (=), or +1 (>),
// based on a primary-axis comparison, e.g., x ordering if rot=0.
int primaryCmp(TextLine *line);
// Compares <this> to <line>, returning -1 (<), 0 (=), or +1 (>),
// based on a secondary-axis comparison of the baselines, e.g., y
// ordering if rot=0.
int secondaryCmp(TextLine *line);
int cmpYX(TextLine *line);
static int cmpXY(const void *p1, const void *p2);
void coalesce(UnicodeMap *uMap);
void visitSelection(TextSelectionVisitor *visitor,
PDFRectangle *selection,
SelectionStyle style);
// Get the head of the linked list of TextWords.
TextWord *getWords() { return words; }
// Get the next TextLine on the linked list.
TextLine *getNext() { return next; }
// Returns true if the last char of the line is a hyphen.
GBool isHyphenated() { return hyphenated; }
private:
TextBlock *blk; // parent block
int rot; // text rotation
double xMin, xMax; // bounding box x coordinates
double yMin, yMax; // bounding box y coordinates
double base; // baseline x or y coordinate
TextWord *words; // words in this line
TextWord *lastWord; // last word in this line
Unicode *text; // Unicode text of the line, including
// spaces between words
double *edge; // "near" edge x or y coord of each char
// (plus one extra entry for the last char)
int *col; // starting column number of each Unicode char
int len; // number of Unicode chars
int convertedLen; // total number of converted characters
GBool hyphenated; // set if last char is a hyphen
TextLine *next; // next line in block
Unicode *normalized; // normalized form of Unicode text
int normalized_len; // number of normalized Unicode chars
int *normalized_idx; // indices of normalized chars into Unicode text
friend class TextLineFrag;
friend class TextBlock;
friend class TextFlow;
friend class TextWordList;
friend class TextPage;
friend class TextSelectionPainter;
friend class TextSelectionSizer;
friend class TextSelectionDumper;
};
//------------------------------------------------------------------------
// TextBlock
//------------------------------------------------------------------------
class TextBlock {
public:
TextBlock(TextPage *pageA, int rotA);
~TextBlock();
void addWord(TextWord *word);
void coalesce(UnicodeMap *uMap);
// Update this block's priMin and priMax values, looking at <blk>.
void updatePriMinMax(TextBlock *blk);
static int cmpXYPrimaryRot(const void *p1, const void *p2);
static int cmpYXPrimaryRot(const void *p1, const void *p2);
int primaryCmp(TextBlock *blk);
double secondaryDelta(TextBlock *blk);
// Returns true if <this> is below <blk>, relative to the page's
// primary rotation.
GBool isBelow(TextBlock *blk);
void visitSelection(TextSelectionVisitor *visitor,
PDFRectangle *selection,
SelectionStyle style);
// Get the head of the linked list of TextLines.
TextLine *getLines() { return lines; }
// Get the next TextBlock on the linked list.
TextBlock *getNext() { return next; }
void getBBox(double *xMinA, double *yMinA, double *xMaxA, double *yMaxA)
{ *xMinA = xMin; *yMinA = yMin; *xMaxA = xMax; *yMaxA = yMax; }
int getLineCount() { return nLines; }
private:
GBool isBeforeByRule1(TextBlock *blk1);
GBool isBeforeByRepeatedRule1(TextBlock *blkList, TextBlock *blk1);
GBool isBeforeByRule2(TextBlock *blk1);
int visitDepthFirst(TextBlock *blkList, int pos1,
TextBlock **sorted, int sortPos,
GBool* visited);
TextPage *page; // the parent page
int rot; // text rotation
double xMin, xMax; // bounding box x coordinates
double yMin, yMax; // bounding box y coordinates
double priMin, priMax; // whitespace bounding box along primary axis
double ExMin, ExMax; // extended bounding box x coordinates
double EyMin, EyMax; // extended bounding box y coordinates
int tableId; // id of table to which this block belongs
GBool tableEnd; // is this block at end of line of actual table
TextPool *pool; // pool of words (used only until lines
// are built)
TextLine *lines; // linked list of lines
TextLine *curLine; // most recently added line
int nLines; // number of lines
int charCount; // number of characters in the block
int col; // starting column
int nColumns; // number of columns in the block
TextBlock *next;
TextBlock *stackNext;
friend class TextLine;
friend class TextLineFrag;
friend class TextFlow;
friend class TextWordList;
friend class TextPage;
friend class TextSelectionPainter;
friend class TextSelectionDumper;
};
//------------------------------------------------------------------------
// TextFlow
//------------------------------------------------------------------------
class TextFlow {
public:
TextFlow(TextPage *pageA, TextBlock *blk);
~TextFlow();
// Add a block to the end of this flow.
void addBlock(TextBlock *blk);
// Returns true if <blk> fits below <prevBlk> in the flow, i.e., (1)
// it uses a font no larger than the last block added to the flow,
// and (2) it fits within the flow's [priMin, priMax] along the
// primary axis.
GBool blockFits(TextBlock *blk, TextBlock *prevBlk);
// Get the head of the linked list of TextBlocks.
TextBlock *getBlocks() { return blocks; }
// Get the next TextFlow on the linked list.
TextFlow *getNext() { return next; }
private:
TextPage *page; // the parent page
double xMin, xMax; // bounding box x coordinates
double yMin, yMax; // bounding box y coordinates
double priMin, priMax; // whitespace bounding box along primary axis
TextBlock *blocks; // blocks in flow
TextBlock *lastBlk; // last block in this flow
TextFlow *next;
friend class TextWordList;
friend class TextPage;
};
#if TEXTOUT_WORD_LIST
//------------------------------------------------------------------------
// TextWordList
//------------------------------------------------------------------------
class TextWordList {
public:
// Build a flat word list, in content stream order (if
// text->rawOrder is true), physical layout order (if <physLayout>
// is true and text->rawOrder is false), or reading order (if both
// flags are false).
TextWordList(TextPage *text, GBool physLayout);
~TextWordList();
// Return the number of words on the list.
int getLength();
// Return the <idx>th word from the list.
TextWord *get(int idx);
private:
GooList *words; // [TextWord]
};
#endif // TEXTOUT_WORD_LIST
//------------------------------------------------------------------------
// TextPage
//------------------------------------------------------------------------
class TextPage {
public:
// Constructor.
TextPage(GBool rawOrderA);
void incRefCnt();
void decRefCnt();
// Start a new page.
void startPage(GfxState *state);
// End the current page.
void endPage();
// Update the current font.
void updateFont(GfxState *state);
// Begin a new word.
void beginWord(GfxState *state, double x0, double y0);
// Add a character to the current word.
void addChar(GfxState *state, double x, double y,
double dx, double dy,
CharCode c, int nBytes, Unicode *u, int uLen);
// End the current word, sorting it into the list of words.
void endWord();
// Add a word, sorting it into the list of words.
void addWord(TextWord *word);
// Add a (potential) underline.
void addUnderline(double x0, double y0, double x1, double y1);
// Add a hyperlink.
void addLink(int xMin, int yMin, int xMax, int yMax, AnnotLink *link);
// Coalesce strings that look like parts of the same line.
void coalesce(GBool physLayout, GBool doHTML);
// Find a string. If <startAtTop> is true, starts looking at the
// top of the page; else if <startAtLast> is true, starts looking
// immediately after the last find result; else starts looking at
// <xMin>,<yMin>. If <stopAtBottom> is true, stops looking at the
// bottom of the page; else if <stopAtLast> is true, stops looking
// just before the last find result; else stops looking at
// <xMax>,<yMax>.
GBool findText(Unicode *s, int len,
GBool startAtTop, GBool stopAtBottom,
GBool startAtLast, GBool stopAtLast,
GBool caseSensitive, GBool backward,
double *xMin, double *yMin,
double *xMax, double *yMax);
// Get the text which is inside the specified rectangle.
GooString *getText(double xMin, double yMin,
double xMax, double yMax);
void visitSelection(TextSelectionVisitor *visitor,
PDFRectangle *selection,
SelectionStyle style);
void drawSelection(OutputDev *out,
double scale,
int rotation,
PDFRectangle *selection,
SelectionStyle style,
GfxColor *glyph_color, GfxColor *box_color);
GooList *getSelectionRegion(PDFRectangle *selection,
SelectionStyle style,
double scale);
GooString *getSelectionText(PDFRectangle *selection,
SelectionStyle style);
// Find a string by character position and length. If found, sets
// the text bounding rectangle and returns true; otherwise returns
// false.
GBool findCharRange(int pos, int length,
double *xMin, double *yMin,
double *xMax, double *yMax);
// Dump contents of page to a file.
void dump(void *outputStream, TextOutputFunc outputFunc,
GBool physLayout);
// Get the head of the linked list of TextFlows.
TextFlow *getFlows() { return flows; }
#if TEXTOUT_WORD_LIST
// Build a flat word list, in content stream order (if
// this->rawOrder is true), physical layout order (if <physLayout>
// is true and this->rawOrder is false), or reading order (if both
// flags are false).
TextWordList *makeWordList(GBool physLayout);
#endif
private:
// Destructor.
~TextPage();
void clear();
void assignColumns(TextLineFrag *frags, int nFrags, GBool rot);
int dumpFragment(Unicode *text, int len, UnicodeMap *uMap, GooString *s);
GBool rawOrder; // keep text in content stream order
double pageWidth, pageHeight; // width and height of current page
TextWord *curWord; // currently active string
int charPos; // next character position (within content
// stream)
TextFontInfo *curFont; // current font
double curFontSize; // current font size
int nest; // current nesting level (for Type 3 fonts)
int nTinyChars; // number of "tiny" chars seen so far
GBool lastCharOverlap; // set if the last added char overlapped the
// previous char
TextPool *pools[4]; // a "pool" of TextWords for each rotation
TextFlow *flows; // linked list of flows
TextBlock **blocks; // array of blocks, in yx order
int nBlocks; // number of blocks
int primaryRot; // primary rotation
GBool primaryLR; // primary direction (true means L-to-R,
// false means R-to-L)
TextWord *rawWords; // list of words, in raw order (only if
// rawOrder is set)
TextWord *rawLastWord; // last word on rawWords list
GooList *fonts; // all font info objects used on this
// page [TextFontInfo]
double lastFindXMin, // coordinates of the last "find" result
lastFindYMin;
GBool haveLastFind;
GooList *underlines; // [TextUnderline]
GooList *links; // [TextLink]
int refCnt;
friend class TextLine;
friend class TextLineFrag;
friend class TextBlock;
friend class TextFlow;
friend class TextWordList;
friend class TextSelectionPainter;
friend class TextSelectionDumper;
};
//------------------------------------------------------------------------
// ActualText
//------------------------------------------------------------------------
class ActualText {
public:
// Create an ActualText
ActualText(TextPage *out);
~ActualText();
void addChar(GfxState *state, double x, double y,
double dx, double dy,
CharCode c, int nBytes, Unicode *u, int uLen);
void beginMC(Dict *properties);
void endMC(GfxState *state);
private:
TextPage *text;
int actualTextBMCLevel; // > 0 when inside ActualText span. Incremented
// for each nested BMC inside the span.
GooString *actualText; // replacement text for the span
GBool newActualTextSpan; // true at start of span. used to init the extent
double actualText_x, actualText_y; // extent of the text inside the span
double actualText_dx, actualText_dy;
};
//------------------------------------------------------------------------
// TextOutputDev
//------------------------------------------------------------------------
class TextOutputDev: public OutputDev {
public:
// Open a text output file. If <fileName> is NULL, no file is
// written (this is useful, e.g., for searching text). If
// <physLayoutA> is true, the original physical layout of the text
// is maintained. If <rawOrder> is true, the text is kept in
// content stream order.
TextOutputDev(char *fileName, GBool physLayoutA,
GBool rawOrderA, GBool append);
// Create a TextOutputDev which will write to a generic stream. If
// <physLayoutA> is true, the original physical layout of the text
// is maintained. If <rawOrder> is true, the text is kept in
// content stream order.
TextOutputDev(TextOutputFunc func, void *stream,
GBool physLayoutA, GBool rawOrderA);
// Destructor.
virtual ~TextOutputDev();
// Check if file was successfully created.
virtual GBool isOk() { return ok; }
//---- get info about output device
// Does this device use upside-down coordinates?
// (Upside-down means (0,0) is the top left corner of the page.)
virtual GBool upsideDown() { return gTrue; }
// Does this device use drawChar() or drawString()?
virtual GBool useDrawChar() { return gTrue; }
// Does this device use beginType3Char/endType3Char? Otherwise,
// text in Type 3 fonts will be drawn with drawChar/drawString.
virtual GBool interpretType3Chars() { return gFalse; }
// Does this device need non-text content?
virtual GBool needNonText() { return gFalse; }
//----- initialization and control
// Start a page.
virtual void startPage(int pageNum, GfxState *state);
// End a page.
virtual void endPage();
//----- update text state
virtual void updateFont(GfxState *state);
//----- text drawing
virtual void beginString(GfxState *state, GooString *s);
virtual void endString(GfxState *state);
virtual void drawChar(GfxState *state, double x, double y,
double dx, double dy,
double originX, double originY,
CharCode c, int nBytes, Unicode *u, int uLen);
//----- grouping operators
virtual void beginMarkedContent(char *name, Dict *properties);
virtual void endMarkedContent(GfxState *state);
//----- path painting
virtual void stroke(GfxState *state);
virtual void fill(GfxState *state);
virtual void eoFill(GfxState *state);
//----- link borders
virtual void processLink(AnnotLink *link, Catalog *catalog);
//----- special access
// Find a string. If <startAtTop> is true, starts looking at the
// top of the page; else if <startAtLast> is true, starts looking
// immediately after the last find result; else starts looking at
// <xMin>,<yMin>. If <stopAtBottom> is true, stops looking at the
// bottom of the page; else if <stopAtLast> is true, stops looking
// just before the last find result; else stops looking at
// <xMax>,<yMax>.
GBool findText(Unicode *s, int len,
GBool startAtTop, GBool stopAtBottom,
GBool startAtLast, GBool stopAtLast,
GBool caseSensitive, GBool backward,
double *xMin, double *yMin,
double *xMax, double *yMax);
// Get the text which is inside the specified rectangle.
GooString *getText(double xMin, double yMin,
double xMax, double yMax);
// Find a string by character position and length. If found, sets
// the text bounding rectangle and returns true; otherwise returns
// false.
GBool findCharRange(int pos, int length,
double *xMin, double *yMin,
double *xMax, double *yMax);
void drawSelection(OutputDev *out, double scale, int rotation,
PDFRectangle *selection,
SelectionStyle style,
GfxColor *glyph_color, GfxColor *box_color);
GooList *getSelectionRegion(PDFRectangle *selection,
SelectionStyle style,
double scale);
GooString *getSelectionText(PDFRectangle *selection,
SelectionStyle style);
#if TEXTOUT_WORD_LIST
// Build a flat word list, in content stream order (if
// this->rawOrder is true), physical layout order (if
// this->physLayout is true and this->rawOrder is false), or reading
// order (if both flags are false).
TextWordList *makeWordList();
#endif
// Returns the TextPage object for the last rasterized page,
// transferring ownership to the caller.
TextPage *takeText();
// Turn extra processing for HTML conversion on or off.
void enableHTMLExtras(GBool doHTMLA) { doHTML = doHTMLA; }
private:
TextOutputFunc outputFunc; // output function
void *outputStream; // output stream
GBool needClose; // need to close the output file?
// (only if outputStream is a FILE*)
TextPage *text; // text for the current page
GBool physLayout; // maintain original physical layout when
// dumping text
GBool rawOrder; // keep text in content stream order
GBool doHTML; // extra processing for HTML conversion
GBool ok; // set up ok?
ActualText *actualText;
};
#endif
|