Line data Source code
1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #include <ctype.h>
21 : #include <editeng/unolingu.hxx>
22 : #include <dlelstnr.hxx>
23 : #include <swmodule.hxx>
24 : #include <IDocumentSettingAccess.hxx>
25 : #include <guess.hxx>
26 : #include <inftxt.hxx>
27 : #include <pagefrm.hxx>
28 : #include <pagedesc.hxx>
29 : #include <tgrditem.hxx>
30 : #include <com/sun/star/i18n/BreakType.hpp>
31 : #include <com/sun/star/i18n/WordType.hpp>
32 : #include <unotools/charclass.hxx>
33 : #include <porfld.hxx>
34 : #include <paratr.hxx>
35 :
36 : using namespace ::com::sun::star;
37 : using namespace ::com::sun::star::uno;
38 : using namespace ::com::sun::star::i18n;
39 : using namespace ::com::sun::star::beans;
40 : using namespace ::com::sun::star::linguistic2;
41 :
42 : #define CH_FULL_BLANK 0x3000
43 :
44 : // provides information for line break calculation
45 : // returns true if no line break has to be performed
46 : // otherwise possible break or hyphenation position is determined
47 102021 : bool SwTextGuess::Guess( const SwTextPortion& rPor, SwTextFormatInfo &rInf,
48 : const sal_uInt16 nPorHeight )
49 : {
50 102021 : nCutPos = rInf.GetIdx();
51 :
52 : // Empty strings are always 0
53 102021 : if( !rInf.GetLen() || rInf.GetText().isEmpty() )
54 0 : return false;
55 :
56 : OSL_ENSURE( rInf.GetIdx() < rInf.GetText().getLength(),
57 : "+SwTextGuess::Guess: invalid SwTextFormatInfo" );
58 :
59 : OSL_ENSURE( nPorHeight, "+SwTextGuess::Guess: no height" );
60 :
61 : sal_uInt16 nMaxSizeDiff;
62 :
63 : const SwScriptInfo& rSI =
64 102021 : static_cast<SwParaPortion*>(rInf.GetParaPortion())->GetScriptInfo();
65 :
66 104300 : sal_uInt16 nMaxComp = ( SW_CJK == rInf.GetFont()->GetActual() ) &&
67 2279 : rSI.CountCompChg() &&
68 0 : ! rInf.IsMulti() &&
69 0 : ! rPor.InFieldGrp() &&
70 0 : ! rPor.IsDropPortion() ?
71 : 10000 :
72 102021 : 0 ;
73 :
74 102021 : SwTwips nLineWidth = rInf.Width() - rInf.X();
75 102021 : sal_Int32 nMaxLen = rInf.GetText().getLength() - rInf.GetIdx();
76 :
77 102021 : if ( rInf.GetLen() < nMaxLen )
78 56223 : nMaxLen = rInf.GetLen();
79 :
80 102021 : if( !nMaxLen )
81 0 : return false;
82 :
83 102021 : sal_uInt16 nItalic = 0;
84 102021 : if( ITALIC_NONE != rInf.GetFont()->GetItalic() && !rInf.NotEOL() )
85 : {
86 5959 : bool bAddItalic = true;
87 :
88 : // do not add extra italic value if we have an active character grid
89 5959 : if ( rInf.SnapToGrid() )
90 : {
91 : SwTextGridItem const*const pGrid(
92 809 : GetGridItem(rInf.GetTextFrm()->FindPageFrm()));
93 809 : bAddItalic = !pGrid || GRID_LINES_CHARS != pGrid->GetGridType();
94 : }
95 :
96 : // do not add extra italic value for an isolated blank:
97 6570 : if ( 1 == rInf.GetLen() &&
98 611 : CH_BLANK == rInf.GetText()[ rInf.GetIdx() ] )
99 459 : bAddItalic = false;
100 :
101 5959 : nItalic = bAddItalic ? nPorHeight / 12 : 0;
102 :
103 5959 : nLineWidth -= nItalic;
104 :
105 : // #i46524# LineBreak bug with italics
106 5959 : if ( nLineWidth < 0 ) nLineWidth = 0;
107 : }
108 :
109 : const sal_Int32 nLeftRightBorderSpace =
110 306063 : (!rPor.GetJoinBorderWithNext() ? rInf.GetFont()->GetRightBorderSpace() : 0) +
111 306063 : (!rPor.GetJoinBorderWithPrev() ? rInf.GetFont()->GetLeftBorderSpace() : 0);
112 :
113 102021 : nLineWidth -= nLeftRightBorderSpace;
114 :
115 102021 : const bool bUnbreakableNumberings = rInf.GetTextFrm()->GetTextNode()->
116 102021 : getIDocumentSettingAccess()->get(DocumentSettingId::UNBREAKABLE_NUMBERINGS);
117 :
118 : // first check if everything fits to line
119 163755 : if ( ( long ( nLineWidth ) * 2 > long ( nMaxLen ) * nPorHeight ) ||
120 16036 : ( bUnbreakableNumberings && rPor.IsNumberPortion() ) )
121 : {
122 : // call GetTextSize with maximum compression (for kanas)
123 : rInf.GetTextSize( &rSI, rInf.GetIdx(), nMaxLen,
124 61734 : nMaxComp, nBreakWidth, nMaxSizeDiff );
125 :
126 61734 : if ( ( nBreakWidth <= nLineWidth ) || ( bUnbreakableNumberings && rPor.IsNumberPortion() ) )
127 : {
128 : // portion fits to line
129 61708 : nCutPos = rInf.GetIdx() + nMaxLen;
130 66061 : if( nItalic &&
131 4401 : ( nCutPos >= rInf.GetText().getLength() ||
132 : // #i48035# Needed for CalcFitToContent
133 : // if first line ends with a manual line break
134 1484 : rInf.GetText()[ nCutPos ] == CH_BREAK ) )
135 1436 : nBreakWidth = nBreakWidth + nItalic;
136 :
137 : // save maximum width for later use
138 61708 : if ( nMaxSizeDiff )
139 0 : rInf.SetMaxWidthDiff( &rPor, nMaxSizeDiff );
140 :
141 61708 : nBreakWidth += nLeftRightBorderSpace;
142 :
143 61708 : return true;
144 : }
145 : }
146 :
147 40313 : bool bHyph = rInf.IsHyphenate() && !rInf.IsHyphForbud();
148 40313 : sal_Int32 nHyphPos = 0;
149 :
150 : // nCutPos is the first character not fitting to the current line
151 : // nHyphPos is the first character not fitting to the current line,
152 : // considering an additional "-" for hyphenation
153 40313 : if( bHyph )
154 : {
155 0 : nCutPos = rInf.GetTextBreak( nLineWidth, nMaxLen, nMaxComp, nHyphPos, rInf.GetCachedVclData().get() );
156 :
157 0 : if ( !nHyphPos && rInf.GetIdx() )
158 0 : nHyphPos = rInf.GetIdx() - 1;
159 : }
160 : else
161 : {
162 40313 : nCutPos = rInf.GetTextBreak( nLineWidth, nMaxLen, nMaxComp, rInf.GetCachedVclData().get() );
163 :
164 : #if OSL_DEBUG_LEVEL > 1
165 : if ( COMPLETE_STRING != nCutPos )
166 : {
167 : sal_uInt16 nMinSize;
168 : rInf.GetTextSize( &rSI, rInf.GetIdx(), nCutPos - rInf.GetIdx(),
169 : nMaxComp, nMinSize, nMaxSizeDiff );
170 : OSL_ENSURE( nMinSize <= nLineWidth, "What a Guess!!!" );
171 : }
172 : #endif
173 : }
174 :
175 40313 : if( nCutPos > rInf.GetIdx() + nMaxLen )
176 : {
177 : // second check if everything fits to line
178 5109 : nCutPos = nBreakPos = rInf.GetIdx() + nMaxLen - 1;
179 : rInf.GetTextSize( &rSI, rInf.GetIdx(), nMaxLen, nMaxComp,
180 5109 : nBreakWidth, nMaxSizeDiff );
181 :
182 : // The following comparison should always give true, otherwise
183 : // there likely has been a pixel rounding error in GetTextBreak
184 5109 : if ( nBreakWidth <= nLineWidth )
185 : {
186 5109 : if( nItalic && ( nBreakPos + 1 ) >= rInf.GetText().getLength() )
187 65 : nBreakWidth = nBreakWidth + nItalic;
188 :
189 : // save maximum width for later use
190 5109 : if ( nMaxSizeDiff )
191 0 : rInf.SetMaxWidthDiff( &rPor, nMaxSizeDiff );
192 :
193 5109 : nBreakWidth += nLeftRightBorderSpace;
194 :
195 5109 : return true;
196 : }
197 : }
198 :
199 : // we have to trigger an underflow for a footnote portion
200 : // which does not fit to the current line
201 35204 : if ( rPor.IsFootnotePortion() )
202 : {
203 0 : nBreakPos = rInf.GetIdx();
204 0 : nCutPos = -1;
205 0 : return false;
206 : }
207 :
208 35204 : sal_Int32 nPorLen = 0;
209 : // do not call the break iterator nCutPos is a blank
210 35204 : sal_Unicode cCutChar = nCutPos < rInf.GetText().getLength() ? rInf.GetText()[nCutPos] : 0;
211 35204 : if( CH_BLANK == cCutChar || CH_FULL_BLANK == cCutChar )
212 : {
213 1424 : nBreakPos = nCutPos;
214 1424 : sal_Int32 nX = nBreakPos;
215 :
216 1424 : const SvxAdjust& rAdjust = rInf.GetTextFrm()->GetTextNode()->GetSwAttrSet().GetAdjust().GetAdjust();
217 1424 : if ( rAdjust == SVX_ADJUST_LEFT )
218 : {
219 : // we step back until a non blank character has been found
220 : // or there is only one more character left
221 2064 : while( nX && nBreakPos > rInf.GetText().getLength() &&
222 0 : ( CH_BLANK == ( cCutChar = rInf.GetChar( --nX ) ) ||
223 : CH_FULL_BLANK == cCutChar ) )
224 0 : --nBreakPos;
225 : }
226 : else // #i20878#
227 : {
228 1614 : while( nX && nBreakPos > rInf.GetLineStart() + 1 &&
229 875 : ( CH_BLANK == ( cCutChar = rInf.GetChar( --nX ) ) ||
230 : CH_FULL_BLANK == cCutChar ) )
231 157 : --nBreakPos;
232 : }
233 :
234 1424 : if( nBreakPos > rInf.GetIdx() )
235 1317 : nPorLen = nBreakPos - rInf.GetIdx();
236 4086 : while( ++nCutPos < rInf.GetText().getLength() &&
237 3392 : ( CH_BLANK == ( cCutChar = rInf.GetChar( nCutPos ) ) ||
238 : CH_FULL_BLANK == cCutChar ) )
239 : ; // nothing
240 :
241 1424 : nBreakStart = nCutPos;
242 : }
243 33780 : else if( g_pBreakIt->GetBreakIter().is() )
244 : {
245 : // New: We should have a look into the last portion, if it was a
246 : // field portion. For this, we expand the text of the field portion
247 : // into our string. If the line break position is inside of before
248 : // the field portion, we trigger an underflow.
249 :
250 33780 : sal_Int32 nOldIdx = rInf.GetIdx();
251 33780 : sal_Unicode cFieldChr = 0;
252 :
253 : #if OSL_DEBUG_LEVEL > 0
254 : OUString aDebugString;
255 : #endif
256 :
257 : // be careful: a field portion can be both: 0x01 (common field)
258 : // or 0x02 (the follow of a footnode)
259 101595 : if ( rInf.GetLast() && rInf.GetLast()->InFieldGrp() &&
260 509 : ! rInf.GetLast()->IsFootnotePortion() &&
261 34061 : rInf.GetIdx() > rInf.GetLineStart() &&
262 : CH_TXTATR_BREAKWORD ==
263 27 : ( cFieldChr = rInf.GetText()[ rInf.GetIdx() - 1 ] ) )
264 : {
265 27 : SwFieldPortion* pField = static_cast<SwFieldPortion*>(rInf.GetLast());
266 27 : OUString aText;
267 27 : pField->GetExpText( rInf, aText );
268 :
269 27 : if ( !aText.isEmpty() )
270 : {
271 27 : nFieldDiff = aText.getLength() - 1;
272 27 : nCutPos = nCutPos + nFieldDiff;
273 27 : nHyphPos = nHyphPos + nFieldDiff;
274 :
275 : #if OSL_DEBUG_LEVEL > 0
276 : aDebugString = rInf.GetText();
277 : #endif
278 :
279 27 : OUString& rOldText = const_cast<OUString&> (rInf.GetText());
280 27 : rOldText = rOldText.replaceAt( rInf.GetIdx() - 1, 1, aText );
281 27 : rInf.SetIdx( rInf.GetIdx() + nFieldDiff );
282 : }
283 : else
284 0 : cFieldChr = 0;
285 : }
286 :
287 33780 : LineBreakHyphenationOptions aHyphOpt;
288 67560 : Reference< XHyphenator > xHyph;
289 33780 : if( bHyph )
290 : {
291 0 : xHyph = ::GetHyphenator();
292 0 : aHyphOpt = LineBreakHyphenationOptions( xHyph,
293 0 : rInf.GetHyphValues(), nHyphPos );
294 : }
295 :
296 : // Get Language for break iterator.
297 : // We have to switch the current language if we have a script
298 : // change at nCutPos. Otherwise LATIN punctuation would never
299 : // be allowed to be hanging punctuation.
300 : // NEVER call GetLang if the string has been modified!!!
301 33780 : LanguageType aLang = rInf.GetFont()->GetLanguage();
302 :
303 : // If we are inside a field portion, we use a temporary string which
304 : // differs from the string at the textnode. Therefore we are not allowed
305 : // to call the GetLang function.
306 33780 : if ( nCutPos && ! rPor.InFieldGrp() )
307 : {
308 33629 : const CharClass& rCC = GetAppCharClass();
309 :
310 : // step back until a non-punctuation character is reached
311 33629 : sal_Int32 nLangIndex = nCutPos;
312 :
313 : // If a field has been expanded right in front of us we do not
314 : // step further than the beginning of the expanded field
315 : // (which is the position of the field placeholder in our
316 : // original string).
317 : const sal_Int32 nDoNotStepOver = CH_TXTATR_BREAKWORD == cFieldChr ?
318 27 : rInf.GetIdx() - nFieldDiff - 1:
319 33656 : 0;
320 :
321 67258 : if ( nLangIndex > nDoNotStepOver &&
322 33629 : rInf.GetText().getLength() == nLangIndex )
323 0 : --nLangIndex;
324 :
325 157655 : while ( nLangIndex > nDoNotStepOver &&
326 61998 : ! rCC.isLetterNumeric( rInf.GetText(), nLangIndex ) )
327 28399 : --nLangIndex;
328 :
329 : // last "real" character is not inside our current portion
330 : // we have to check the script type of the last "real" character
331 33629 : if ( nLangIndex < rInf.GetIdx() )
332 : {
333 127 : sal_uInt16 nScript = g_pBreakIt->GetRealScriptOfText( rInf.GetText(),
334 127 : nLangIndex );
335 : OSL_ENSURE( nScript, "Script is not between 1 and 4" );
336 :
337 : // compare current script with script from last "real" character
338 127 : if ( nScript - 1 != rInf.GetFont()->GetActual() )
339 : aLang = rInf.GetTextFrm()->GetTextNode()->GetLang(
340 : CH_TXTATR_BREAKWORD == cFieldChr ?
341 : nDoNotStepOver :
342 1 : nLangIndex, 0, nScript );
343 : }
344 : }
345 :
346 : const ForbiddenCharacters aForbidden(
347 67560 : *rInf.GetTextFrm()->GetNode()->getIDocumentSettingAccess()->getForbiddenCharacters( aLang, true ) );
348 :
349 67302 : const bool bAllowHanging = rInf.IsHanging() && ! rInf.IsMulti() &&
350 67302 : ! rPor.InFieldGrp();
351 :
352 : LineBreakUserOptions aUserOpt(
353 : aForbidden.beginLine, aForbidden.endLine,
354 67560 : rInf.HasForbiddenChars(), bAllowHanging, false );
355 :
356 : //! register listener to LinguServiceEvents now in order to get
357 : //! notified about relevant changes in the future
358 33780 : SwModule *pModule = SW_MOD();
359 33780 : if (!pModule->GetLngSvcEvtListener().is())
360 23 : pModule->CreateLngSvcEvtListener();
361 :
362 : // !!! We must have a local copy of the locale, because inside
363 : // getLineBreak the LinguEventListener can trigger a new formatting,
364 : // which can corrupt the locale pointer inside pBreakIt.
365 67560 : const lang::Locale aLocale = g_pBreakIt->GetLocale( aLang );
366 :
367 : // determines first possible line break from nCutPos to
368 : // start index of current line
369 67560 : LineBreakResults aResult = g_pBreakIt->GetBreakIter()->getLineBreak(
370 33780 : rInf.GetText(), nCutPos, aLocale,
371 101340 : rInf.GetLineStart(), aHyphOpt, aUserOpt );
372 :
373 33780 : nBreakPos = aResult.breakIndex;
374 :
375 : // if we are formatting multi portions we want to allow line breaks
376 : // at the border between single line and multi line portion
377 : // we have to be careful with footnote portions, they always come in
378 : // with an index 0
379 33780 : if ( nBreakPos < rInf.GetLineStart() && rInf.IsFirstMulti() &&
380 0 : ! rInf.IsFootnoteInside() )
381 0 : nBreakPos = rInf.GetLineStart();
382 :
383 33780 : nBreakStart = nBreakPos;
384 :
385 33780 : bHyph = BreakType::HYPHENATION == aResult.breakType;
386 :
387 33780 : if ( bHyph && nBreakPos != COMPLETE_STRING )
388 : {
389 : // found hyphenation position within line
390 : // nBreakPos is set to the hyphenation position
391 0 : xHyphWord = aResult.rHyphenatedWord;
392 0 : nBreakPos += xHyphWord->getHyphenationPos() + 1;
393 :
394 : // if not in interactive mode, we have to break behind a soft hyphen
395 0 : if ( ! rInf.IsInterHyph() && rInf.GetIdx() )
396 : {
397 : const long nSoftHyphPos =
398 0 : xHyphWord->getWord().indexOf( CHAR_SOFTHYPHEN );
399 :
400 0 : if ( nSoftHyphPos >= 0 &&
401 0 : nBreakStart + nSoftHyphPos <= nBreakPos &&
402 0 : nBreakPos > rInf.GetLineStart() )
403 0 : nBreakPos = rInf.GetIdx() - 1;
404 : }
405 :
406 0 : if( nBreakPos >= rInf.GetIdx() )
407 : {
408 0 : nPorLen = nBreakPos - rInf.GetIdx();
409 0 : if( '-' == rInf.GetText()[ nBreakPos - 1 ] )
410 0 : xHyphWord = NULL;
411 0 : }
412 : }
413 33780 : else if ( !bHyph && nBreakPos >= rInf.GetLineStart() )
414 : {
415 : OSL_ENSURE( nBreakPos != COMPLETE_STRING, "we should have found a break pos" );
416 :
417 : // found break position within line
418 32922 : xHyphWord = NULL;
419 :
420 : // check, if break position is soft hyphen and an underflow
421 : // has to be triggered
422 59595 : if( nBreakPos > rInf.GetLineStart() && rInf.GetIdx() &&
423 26673 : CHAR_SOFTHYPHEN == rInf.GetText()[ nBreakPos - 1 ] )
424 0 : nBreakPos = rInf.GetIdx() - 1;
425 :
426 32922 : const SvxAdjust& rAdjust = rInf.GetTextFrm()->GetTextNode()->GetSwAttrSet().GetAdjust().GetAdjust();
427 32922 : if( rAdjust != SVX_ADJUST_LEFT )
428 : {
429 : // Delete any blanks at the end of a line, but be careful:
430 : // If a field has been expanded, we do not want to delete any
431 : // blanks inside the field portion. This would cause an unwanted
432 : // underflow
433 2586 : sal_Int32 nX = nBreakPos;
434 17507 : while( nX > rInf.GetLineStart() &&
435 12335 : ( CH_TXTATR_BREAKWORD != cFieldChr || nX > rInf.GetIdx() ) &&
436 7373 : ( CH_BLANK == rInf.GetChar( --nX ) ||
437 2474 : CH_FULL_BLANK == rInf.GetChar( nX ) ) )
438 2425 : nBreakPos = nX;
439 : }
440 32922 : if( nBreakPos > rInf.GetIdx() )
441 30295 : nPorLen = nBreakPos - rInf.GetIdx();
442 : }
443 : else
444 : {
445 : // no line break found, setting nBreakPos to COMPLETE_STRING
446 : // causes a break cut
447 858 : nBreakPos = COMPLETE_STRING;
448 : OSL_ENSURE( nCutPos >= rInf.GetIdx(), "Deep cut" );
449 858 : nPorLen = nCutPos - rInf.GetIdx();
450 : }
451 :
452 33780 : if( nBreakPos > nCutPos && nBreakPos != COMPLETE_STRING )
453 : {
454 0 : const sal_Int32 nHangingLen = nBreakPos - nCutPos;
455 : SwPosSize aTmpSize = rInf.GetTextSize( &rSI, nCutPos,
456 0 : nHangingLen, 0 );
457 0 : aTmpSize.Width(aTmpSize.Width() + nLeftRightBorderSpace);
458 : OSL_ENSURE( !pHanging, "A hanging portion is hanging around" );
459 0 : pHanging = new SwHangingPortion( aTmpSize );
460 0 : pHanging->SetLen( nHangingLen );
461 0 : nPorLen = nCutPos - rInf.GetIdx();
462 : }
463 :
464 : // If we expanded a field, we must repair the original string.
465 : // In case we do not trigger an underflow, we correct the nBreakPos
466 : // value, but we cannot correct the nBreakStart value:
467 : // If we have found a hyphenation position, nBreakStart can lie before
468 : // the field.
469 33780 : if ( CH_TXTATR_BREAKWORD == cFieldChr )
470 : {
471 27 : if ( nBreakPos < rInf.GetIdx() )
472 6 : nBreakPos = nOldIdx - 1;
473 21 : else if ( COMPLETE_STRING != nBreakPos )
474 : {
475 : OSL_ENSURE( nBreakPos >= nFieldDiff, "I've got field trouble!" );
476 21 : nBreakPos = nBreakPos - nFieldDiff;
477 : }
478 :
479 : OSL_ENSURE( nCutPos >= rInf.GetIdx() && nCutPos >= nFieldDiff,
480 : "I've got field trouble, part2!" );
481 27 : nCutPos = nCutPos - nFieldDiff;
482 :
483 27 : OUString& rOldText = const_cast<OUString&> (rInf.GetText());
484 27 : OUString aReplacement( cFieldChr );
485 27 : rOldText = rOldText.replaceAt( nOldIdx - 1, nFieldDiff + 1, aReplacement);
486 27 : rInf.SetIdx( nOldIdx );
487 :
488 : #if OSL_DEBUG_LEVEL > 0
489 : OSL_ENSURE( aDebugString == rInf.GetText(),
490 : "Somebody, somebody, somebody put something in my string" );
491 : #endif
492 33780 : }
493 : }
494 :
495 35204 : if( nPorLen )
496 : {
497 : rInf.GetTextSize( &rSI, rInf.GetIdx(), nPorLen,
498 : nMaxComp, nBreakWidth, nMaxSizeDiff,
499 31956 : rInf.GetCachedVclData().get() );
500 :
501 : // save maximum width for later use
502 31956 : if ( nMaxSizeDiff )
503 0 : rInf.SetMaxWidthDiff( &rPor, nMaxSizeDiff );
504 :
505 31956 : nBreakWidth += nItalic + nLeftRightBorderSpace;
506 : }
507 : else
508 3248 : nBreakWidth = 0;
509 :
510 35204 : if( pHanging )
511 0 : nBreakPos = nCutPos;
512 :
513 35204 : return false;
514 : }
515 :
516 : // returns true if word at position nPos has a diffenrent spelling
517 : // if hyphenated at this position (old german spelling)
518 0 : bool SwTextGuess::AlternativeSpelling( const SwTextFormatInfo &rInf,
519 : const sal_Int32 nPos )
520 : {
521 : // get word boundaries
522 : Boundary aBound =
523 0 : g_pBreakIt->GetBreakIter()->getWordBoundary( rInf.GetText(), nPos,
524 0 : g_pBreakIt->GetLocale( rInf.GetFont()->GetLanguage() ),
525 0 : WordType::DICTIONARY_WORD, true );
526 0 : nBreakStart = aBound.startPos;
527 0 : sal_Int32 nWordLen = aBound.endPos - nBreakStart;
528 :
529 : // if everything else fails, we want to cut at nPos
530 0 : nCutPos = nPos;
531 :
532 0 : OUString aText( rInf.GetText().copy( nBreakStart, nWordLen ) );
533 :
534 : // check, if word has alternative spelling
535 0 : Reference< XHyphenator > xHyph( ::GetHyphenator() );
536 : OSL_ENSURE( xHyph.is(), "Hyphenator is missing");
537 : //! subtract 1 since the UNO-interface is 0 based
538 0 : xHyphWord = xHyph->queryAlternativeSpelling( aText,
539 0 : g_pBreakIt->GetLocale( rInf.GetFont()->GetLanguage() ),
540 0 : nPos - nBreakStart, rInf.GetHyphValues() );
541 0 : return xHyphWord.is() && xHyphWord->isAlternativeSpelling();
542 177 : }
543 :
544 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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