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 <tools/shl.hxx>
23 : #include <dlelstnr.hxx>
24 : #include <swmodule.hxx>
25 : #include <IDocumentSettingAccess.hxx>
26 : #include <guess.hxx>
27 : #include <inftxt.hxx>
28 : #include <pagefrm.hxx>
29 : #include <pagedesc.hxx>
30 : #include <tgrditem.hxx>
31 : #include <com/sun/star/i18n/BreakType.hpp>
32 : #include <com/sun/star/i18n/WordType.hpp>
33 : #include <unotools/charclass.hxx>
34 : #include <porfld.hxx>
35 : #include <paratr.hxx>
36 :
37 : using namespace ::com::sun::star;
38 : using namespace ::com::sun::star::uno;
39 : using namespace ::com::sun::star::i18n;
40 : using namespace ::com::sun::star::beans;
41 : using namespace ::com::sun::star::linguistic2;
42 :
43 : #define CH_FULL_BLANK 0x3000
44 :
45 : /*************************************************************************
46 : * SwTxtGuess::Guess
47 : *
48 : * provides information for line break calculation
49 : * returns true if no line break has to be performed
50 : * otherwise possible break or hyphenation position is determined
51 : *************************************************************************/
52 :
53 0 : bool SwTxtGuess::Guess( const SwTxtPortion& rPor, SwTxtFormatInfo &rInf,
54 : const KSHORT nPorHeight )
55 : {
56 0 : nCutPos = rInf.GetIdx();
57 :
58 : // Empty strings are always 0
59 0 : if( !rInf.GetLen() || rInf.GetTxt().isEmpty() )
60 0 : return false;
61 :
62 : OSL_ENSURE( rInf.GetIdx() < rInf.GetTxt().getLength(),
63 : "+SwTxtGuess::Guess: invalid SwTxtFormatInfo" );
64 :
65 : OSL_ENSURE( nPorHeight, "+SwTxtGuess::Guess: no height" );
66 :
67 : sal_uInt16 nMaxSizeDiff;
68 :
69 : const SwScriptInfo& rSI =
70 0 : ((SwParaPortion*)rInf.GetParaPortion())->GetScriptInfo();
71 :
72 0 : sal_uInt16 nMaxComp = ( SW_CJK == rInf.GetFont()->GetActual() ) &&
73 0 : rSI.CountCompChg() &&
74 0 : ! rInf.IsMulti() &&
75 0 : ! rPor.InFldGrp() &&
76 0 : ! rPor.IsDropPortion() ?
77 : 10000 :
78 0 : 0 ;
79 :
80 0 : SwTwips nLineWidth = rInf.Width() - rInf.X();
81 0 : sal_Int32 nMaxLen = rInf.GetTxt().getLength() - rInf.GetIdx();
82 :
83 0 : if ( rInf.GetLen() < nMaxLen )
84 0 : nMaxLen = rInf.GetLen();
85 :
86 0 : if( !nMaxLen )
87 0 : return false;
88 :
89 0 : KSHORT nItalic = 0;
90 0 : if( ITALIC_NONE != rInf.GetFont()->GetItalic() && !rInf.NotEOL() )
91 : {
92 0 : bool bAddItalic = true;
93 :
94 : // do not add extra italic value if we have an active character grid
95 0 : if ( rInf.SnapToGrid() )
96 : {
97 : SwTextGridItem const*const pGrid(
98 0 : GetGridItem(rInf.GetTxtFrm()->FindPageFrm()));
99 0 : bAddItalic = !pGrid || GRID_LINES_CHARS != pGrid->GetGridType();
100 : }
101 :
102 : // do not add extra italic value for an isolated blank:
103 0 : if ( 1 == rInf.GetLen() &&
104 0 : CH_BLANK == rInf.GetTxt()[ rInf.GetIdx() ] )
105 0 : bAddItalic = false;
106 :
107 0 : nItalic = bAddItalic ? nPorHeight / 12 : 0;
108 :
109 0 : nLineWidth -= nItalic;
110 :
111 : // #i46524# LineBreak bug with italics
112 0 : if ( nLineWidth < 0 ) nLineWidth = 0;
113 : }
114 :
115 : const sal_Int32 nLeftRightBorderSpace =
116 0 : (!rPor.GetJoinBorderWithNext() ? rInf.GetFont()->GetRightBorderSpace() : 0) +
117 0 : (!rPor.GetJoinBorderWithPrev() ? rInf.GetFont()->GetLeftBorderSpace() : 0);
118 :
119 0 : nLineWidth -= nLeftRightBorderSpace;
120 :
121 0 : const bool bUnbreakableNumberings = rInf.GetTxtFrm()->GetTxtNode()->
122 0 : getIDocumentSettingAccess()->get(IDocumentSettingAccess::UNBREAKABLE_NUMBERINGS);
123 :
124 : // first check if everything fits to line
125 0 : if ( ( long ( nLineWidth ) * 2 > long ( nMaxLen ) * nPorHeight ) ||
126 0 : ( bUnbreakableNumberings && rPor.IsNumberPortion() ) )
127 : {
128 : // call GetTxtSize with maximum compression (for kanas)
129 : rInf.GetTxtSize( &rSI, rInf.GetIdx(), nMaxLen,
130 0 : nMaxComp, nBreakWidth, nMaxSizeDiff );
131 :
132 0 : if ( ( nBreakWidth <= nLineWidth ) || ( bUnbreakableNumberings && rPor.IsNumberPortion() ) )
133 : {
134 : // portion fits to line
135 0 : nCutPos = rInf.GetIdx() + nMaxLen;
136 0 : if( nItalic &&
137 0 : ( nCutPos >= rInf.GetTxt().getLength() ||
138 : // #i48035# Needed for CalcFitToContent
139 : // if first line ends with a manual line break
140 0 : rInf.GetTxt()[ nCutPos ] == CH_BREAK ) )
141 0 : nBreakWidth = nBreakWidth + nItalic;
142 :
143 : // save maximum width for later use
144 0 : if ( nMaxSizeDiff )
145 0 : rInf.SetMaxWidthDiff( (sal_uLong)&rPor, nMaxSizeDiff );
146 :
147 0 : nBreakWidth += nLeftRightBorderSpace;
148 :
149 0 : return true;
150 : }
151 : }
152 :
153 0 : bool bHyph = rInf.IsHyphenate() && !rInf.IsHyphForbud();
154 0 : sal_Int32 nHyphPos = 0;
155 :
156 : // nCutPos is the first character not fitting to the current line
157 : // nHyphPos is the first character not fitting to the current line,
158 : // considering an additional "-" for hyphenation
159 0 : if( bHyph )
160 : {
161 0 : nCutPos = rInf.GetTxtBreak( nLineWidth, nMaxLen, nMaxComp, nHyphPos );
162 :
163 0 : if ( !nHyphPos && rInf.GetIdx() )
164 0 : nHyphPos = rInf.GetIdx() - 1;
165 : }
166 : else
167 : {
168 0 : nCutPos = rInf.GetTxtBreak( nLineWidth, nMaxLen, nMaxComp );
169 :
170 : #if OSL_DEBUG_LEVEL > 1
171 : if ( COMPLETE_STRING != nCutPos )
172 : {
173 : sal_uInt16 nMinSize;
174 : rInf.GetTxtSize( &rSI, rInf.GetIdx(), nCutPos - rInf.GetIdx(),
175 : nMaxComp, nMinSize, nMaxSizeDiff );
176 : OSL_ENSURE( nMinSize <= nLineWidth, "What a Guess!!!" );
177 : }
178 : #endif
179 : }
180 :
181 0 : if( nCutPos > rInf.GetIdx() + nMaxLen )
182 : {
183 : // second check if everything fits to line
184 0 : nCutPos = nBreakPos = rInf.GetIdx() + nMaxLen - 1;
185 : rInf.GetTxtSize( &rSI, rInf.GetIdx(), nMaxLen, nMaxComp,
186 0 : nBreakWidth, nMaxSizeDiff );
187 :
188 : // The following comparison should always give true, otherwise
189 : // there likely has been a pixel rounding error in GetTxtBreak
190 0 : if ( nBreakWidth <= nLineWidth )
191 : {
192 0 : if( nItalic && ( nBreakPos + 1 ) >= rInf.GetTxt().getLength() )
193 0 : nBreakWidth = nBreakWidth + nItalic;
194 :
195 : // save maximum width for later use
196 0 : if ( nMaxSizeDiff )
197 0 : rInf.SetMaxWidthDiff( (sal_uLong)&rPor, nMaxSizeDiff );
198 :
199 0 : nBreakWidth += nLeftRightBorderSpace;
200 :
201 0 : return true;
202 : }
203 : }
204 :
205 : // we have to trigger an underflow for a footnote portion
206 : // which does not fit to the current line
207 0 : if ( rPor.IsFtnPortion() )
208 : {
209 0 : nBreakPos = rInf.GetIdx();
210 0 : nCutPos = rInf.GetLen();
211 0 : return false;
212 : }
213 :
214 0 : sal_Int32 nPorLen = 0;
215 : // do not call the break iterator nCutPos is a blank
216 0 : sal_Unicode cCutChar = rInf.GetTxt()[ nCutPos ];
217 0 : if( CH_BLANK == cCutChar || CH_FULL_BLANK == cCutChar )
218 : {
219 0 : nBreakPos = nCutPos;
220 0 : sal_Int32 nX = nBreakPos;
221 :
222 0 : const SvxAdjust& rAdjust = rInf.GetTxtFrm()->GetTxtNode()->GetSwAttrSet().GetAdjust().GetAdjust();
223 0 : if ( rAdjust == SVX_ADJUST_LEFT )
224 : {
225 : // we step back until a non blank character has been found
226 : // or there is only one more character left
227 0 : while( nX && nBreakPos > rInf.GetTxt().getLength() &&
228 0 : ( CH_BLANK == ( cCutChar = rInf.GetChar( --nX ) ) ||
229 : CH_FULL_BLANK == cCutChar ) )
230 0 : --nBreakPos;
231 : }
232 : else // #i20878#
233 : {
234 0 : while( nX && nBreakPos > rInf.GetLineStart() + 1 &&
235 0 : ( CH_BLANK == ( cCutChar = rInf.GetChar( --nX ) ) ||
236 : CH_FULL_BLANK == cCutChar ) )
237 0 : --nBreakPos;
238 : }
239 :
240 0 : if( nBreakPos > rInf.GetIdx() )
241 0 : nPorLen = nBreakPos - rInf.GetIdx();
242 0 : while( ++nCutPos < rInf.GetTxt().getLength() &&
243 0 : ( CH_BLANK == ( cCutChar = rInf.GetChar( nCutPos ) ) ||
244 : CH_FULL_BLANK == cCutChar ) )
245 : ; // nothing
246 :
247 0 : nBreakStart = nCutPos;
248 : }
249 0 : else if( g_pBreakIt->GetBreakIter().is() )
250 : {
251 : // New: We should have a look into the last portion, if it was a
252 : // field portion. For this, we expand the text of the field portion
253 : // into our string. If the line break position is inside of before
254 : // the field portion, we trigger an underflow.
255 :
256 0 : sal_Int32 nOldIdx = rInf.GetIdx();
257 0 : sal_Unicode cFldChr = 0;
258 :
259 : #if OSL_DEBUG_LEVEL > 0
260 : OUString aDebugString;
261 : #endif
262 :
263 : // be careful: a field portion can be both: 0x01 (common field)
264 : // or 0x02 (the follow of a footnode)
265 0 : if ( rInf.GetLast() && rInf.GetLast()->InFldGrp() &&
266 0 : ! rInf.GetLast()->IsFtnPortion() &&
267 0 : rInf.GetIdx() > rInf.GetLineStart() &&
268 : CH_TXTATR_BREAKWORD ==
269 0 : ( cFldChr = rInf.GetTxt()[ rInf.GetIdx() - 1 ] ) )
270 : {
271 0 : SwFldPortion* pFld = (SwFldPortion*)rInf.GetLast();
272 0 : OUString aTxt;
273 0 : pFld->GetExpTxt( rInf, aTxt );
274 :
275 0 : if ( !aTxt.isEmpty() )
276 : {
277 0 : nFieldDiff = aTxt.getLength() - 1;
278 0 : nCutPos = nCutPos + nFieldDiff;
279 0 : nHyphPos = nHyphPos + nFieldDiff;
280 :
281 : #if OSL_DEBUG_LEVEL > 0
282 : aDebugString = rInf.GetTxt();
283 : #endif
284 :
285 0 : OUString& rOldTxt = const_cast<OUString&> (rInf.GetTxt());
286 0 : rOldTxt = rOldTxt.replaceAt( rInf.GetIdx() - 1, 1, aTxt );
287 0 : rInf.SetIdx( rInf.GetIdx() + nFieldDiff );
288 : }
289 : else
290 0 : cFldChr = 0;
291 : }
292 :
293 0 : LineBreakHyphenationOptions aHyphOpt;
294 0 : Reference< XHyphenator > xHyph;
295 0 : if( bHyph )
296 : {
297 0 : xHyph = ::GetHyphenator();
298 0 : aHyphOpt = LineBreakHyphenationOptions( xHyph,
299 0 : rInf.GetHyphValues(), nHyphPos );
300 : }
301 :
302 : // Get Language for break iterator.
303 : // We have to switch the current language if we have a script
304 : // change at nCutPos. Otherwise LATIN punctuation would never
305 : // be allowed to be hanging punctuation.
306 : // NEVER call GetLang if the string has been modified!!!
307 0 : LanguageType aLang = rInf.GetFont()->GetLanguage();
308 :
309 : // If we are inside a field portion, we use a temporary string which
310 : // differs from the string at the textnode. Therefore we are not allowed
311 : // to call the GetLang function.
312 0 : if ( nCutPos && ! rPor.InFldGrp() )
313 : {
314 0 : const CharClass& rCC = GetAppCharClass();
315 :
316 : // step back until a non-punctuation character is reached
317 0 : sal_Int32 nLangIndex = nCutPos;
318 :
319 : // If a field has been expanded right in front of us we do not
320 : // step further than the beginning of the expanded field
321 : // (which is the position of the field placeholder in our
322 : // original string).
323 : const sal_Int32 nDoNotStepOver = CH_TXTATR_BREAKWORD == cFldChr ?
324 0 : rInf.GetIdx() - nFieldDiff - 1:
325 0 : 0;
326 :
327 0 : while ( nLangIndex > nDoNotStepOver &&
328 0 : ! rCC.isLetterNumeric( rInf.GetTxt(), nLangIndex ) )
329 0 : --nLangIndex;
330 :
331 : // last "real" character is not inside our current portion
332 : // we have to check the script type of the last "real" character
333 0 : if ( nLangIndex < rInf.GetIdx() )
334 : {
335 0 : sal_uInt16 nScript = g_pBreakIt->GetRealScriptOfText( rInf.GetTxt(),
336 0 : nLangIndex );
337 : OSL_ENSURE( nScript, "Script is not between 1 and 4" );
338 :
339 : // compare current script with script from last "real" character
340 0 : if ( nScript - 1 != rInf.GetFont()->GetActual() )
341 : aLang = rInf.GetTxtFrm()->GetTxtNode()->GetLang(
342 : CH_TXTATR_BREAKWORD == cFldChr ?
343 : nDoNotStepOver :
344 0 : nLangIndex, 0, nScript );
345 : }
346 : }
347 :
348 : const ForbiddenCharacters aForbidden(
349 0 : *rInf.GetTxtFrm()->GetNode()->getIDocumentSettingAccess()->getForbiddenCharacters( aLang, true ) );
350 :
351 0 : const bool bAllowHanging = rInf.IsHanging() && ! rInf.IsMulti() &&
352 0 : ! rPor.InFldGrp();
353 :
354 : LineBreakUserOptions aUserOpt(
355 : aForbidden.beginLine, aForbidden.endLine,
356 0 : rInf.HasForbiddenChars(), bAllowHanging, false );
357 :
358 : //! register listener to LinguServiceEvents now in order to get
359 : //! notified about relevant changes in the future
360 0 : SwModule *pModule = SW_MOD();
361 0 : if (!pModule->GetLngSvcEvtListener().is())
362 0 : pModule->CreateLngSvcEvtListener();
363 :
364 : // !!! We must have a local copy of the locale, because inside
365 : // getLineBreak the LinguEventListener can trigger a new formatting,
366 : // which can corrupt the locale pointer inside pBreakIt.
367 0 : const lang::Locale aLocale = g_pBreakIt->GetLocale( aLang );
368 :
369 : // determines first possible line break from nCutPos to
370 : // start index of current line
371 0 : LineBreakResults aResult = g_pBreakIt->GetBreakIter()->getLineBreak(
372 0 : rInf.GetTxt(), nCutPos, aLocale,
373 0 : rInf.GetLineStart(), aHyphOpt, aUserOpt );
374 :
375 0 : nBreakPos = aResult.breakIndex;
376 :
377 : // if we are formatting multi portions we want to allow line breaks
378 : // at the border between single line and multi line portion
379 : // we have to be carefull with footnote portions, they always come in
380 : // with an index 0
381 0 : if ( nBreakPos < rInf.GetLineStart() && rInf.IsFirstMulti() &&
382 0 : ! rInf.IsFtnInside() )
383 0 : nBreakPos = rInf.GetLineStart();
384 :
385 0 : nBreakStart = nBreakPos;
386 :
387 0 : bHyph = BreakType::HYPHENATION == aResult.breakType;
388 :
389 0 : if ( bHyph && nBreakPos != COMPLETE_STRING )
390 : {
391 : // found hyphenation position within line
392 : // nBreakPos is set to the hyphenation position
393 0 : xHyphWord = aResult.rHyphenatedWord;
394 0 : nBreakPos += xHyphWord->getHyphenationPos() + 1;
395 :
396 : #if OSL_DEBUG_LEVEL > 1
397 : // e.g., Schif-fahrt, referes to our string
398 : const OUString aWord = xHyphWord->getWord();
399 : // e.g., Schiff-fahrt, referes to the word after hyphenation
400 : const OUString aHyphenatedWord = xHyphWord->getHyphenatedWord();
401 : // e.g., Schif-fahrt: 5, referes to our string
402 : const sal_uInt16 nHyphenationPos = xHyphWord->getHyphenationPos();
403 : (void)nHyphenationPos;
404 : // e.g., Schiff-fahrt: 6, referes to the word after hyphenation
405 : const sal_uInt16 nHyphenPos = xHyphWord->getHyphenPos();
406 : (void)nHyphenPos;
407 : #endif
408 :
409 : // if not in interactive mode, we have to break behind a soft hyphen
410 0 : if ( ! rInf.IsInterHyph() && rInf.GetIdx() )
411 : {
412 : const long nSoftHyphPos =
413 0 : xHyphWord->getWord().indexOf( CHAR_SOFTHYPHEN );
414 :
415 0 : if ( nSoftHyphPos >= 0 &&
416 0 : nBreakStart + nSoftHyphPos <= nBreakPos &&
417 0 : nBreakPos > rInf.GetLineStart() )
418 0 : nBreakPos = rInf.GetIdx() - 1;
419 : }
420 :
421 0 : if( nBreakPos >= rInf.GetIdx() )
422 : {
423 0 : nPorLen = nBreakPos - rInf.GetIdx();
424 0 : if( '-' == rInf.GetTxt()[ nBreakPos - 1 ] )
425 0 : xHyphWord = NULL;
426 0 : }
427 : }
428 0 : else if ( !bHyph && nBreakPos >= rInf.GetLineStart() )
429 : {
430 : OSL_ENSURE( nBreakPos != COMPLETE_STRING, "we should have found a break pos" );
431 :
432 : // found break position within line
433 0 : xHyphWord = NULL;
434 :
435 : // check, if break position is soft hyphen and an underflow
436 : // has to be triggered
437 0 : if( nBreakPos > rInf.GetLineStart() && rInf.GetIdx() &&
438 0 : CHAR_SOFTHYPHEN == rInf.GetTxt()[ nBreakPos - 1 ] )
439 0 : nBreakPos = rInf.GetIdx() - 1;
440 :
441 0 : const SvxAdjust& rAdjust = rInf.GetTxtFrm()->GetTxtNode()->GetSwAttrSet().GetAdjust().GetAdjust();
442 0 : if( rAdjust != SVX_ADJUST_LEFT )
443 : {
444 : // Delete any blanks at the end of a line, but be careful:
445 : // If a field has been expanded, we do not want to delete any
446 : // blanks inside the field portion. This would cause an unwanted
447 : // underflow
448 0 : sal_Int32 nX = nBreakPos;
449 0 : while( nX > rInf.GetLineStart() &&
450 0 : ( CH_TXTATR_BREAKWORD != cFldChr || nX > rInf.GetIdx() ) &&
451 0 : ( CH_BLANK == rInf.GetChar( --nX ) ||
452 0 : CH_FULL_BLANK == rInf.GetChar( nX ) ) )
453 0 : nBreakPos = nX;
454 : }
455 0 : if( nBreakPos > rInf.GetIdx() )
456 0 : nPorLen = nBreakPos - rInf.GetIdx();
457 : }
458 : else
459 : {
460 : // no line break found, setting nBreakPos to COMPLETE_STRING
461 : // causes a break cut
462 0 : nBreakPos = COMPLETE_STRING;
463 : OSL_ENSURE( nCutPos >= rInf.GetIdx(), "Deep cut" );
464 0 : nPorLen = nCutPos - rInf.GetIdx();
465 : }
466 :
467 0 : if( nBreakPos > nCutPos && nBreakPos != COMPLETE_STRING )
468 : {
469 0 : const sal_Int32 nHangingLen = nBreakPos - nCutPos;
470 : SwPosSize aTmpSize = rInf.GetTxtSize( &rSI, nCutPos,
471 0 : nHangingLen, 0 );
472 0 : aTmpSize.Width(aTmpSize.Width() + nLeftRightBorderSpace);
473 : OSL_ENSURE( !pHanging, "A hanging portion is hanging around" );
474 0 : pHanging = new SwHangingPortion( aTmpSize );
475 0 : pHanging->SetLen( nHangingLen );
476 0 : nPorLen = nCutPos - rInf.GetIdx();
477 : }
478 :
479 : // If we expanded a field, we must repair the original string.
480 : // In case we do not trigger an underflow, we correct the nBreakPos
481 : // value, but we cannot correct the nBreakStart value:
482 : // If we have found a hyphenation position, nBreakStart can lie before
483 : // the field.
484 0 : if ( CH_TXTATR_BREAKWORD == cFldChr )
485 : {
486 0 : if ( nBreakPos < rInf.GetIdx() )
487 0 : nBreakPos = nOldIdx - 1;
488 0 : else if ( COMPLETE_STRING != nBreakPos )
489 : {
490 : OSL_ENSURE( nBreakPos >= nFieldDiff, "I've got field trouble!" );
491 0 : nBreakPos = nBreakPos - nFieldDiff;
492 : }
493 :
494 : OSL_ENSURE( nCutPos >= rInf.GetIdx() && nCutPos >= nFieldDiff,
495 : "I've got field trouble, part2!" );
496 0 : nCutPos = nCutPos - nFieldDiff;
497 :
498 0 : OUString& rOldTxt = const_cast<OUString&> (rInf.GetTxt());
499 0 : OUString aReplacement( cFldChr );
500 0 : rOldTxt = rOldTxt.replaceAt( nOldIdx - 1, nFieldDiff + 1, aReplacement);
501 0 : rInf.SetIdx( nOldIdx );
502 :
503 : #if OSL_DEBUG_LEVEL > 0
504 : OSL_ENSURE( aDebugString == rInf.GetTxt(),
505 : "Somebody, somebody, somebody put something in my string" );
506 : #endif
507 0 : }
508 : }
509 :
510 0 : if( nPorLen )
511 : {
512 : rInf.GetTxtSize( &rSI, rInf.GetIdx(), nPorLen,
513 0 : nMaxComp, nBreakWidth, nMaxSizeDiff );
514 :
515 : // save maximum width for later use
516 0 : if ( nMaxSizeDiff )
517 0 : rInf.SetMaxWidthDiff( (sal_uLong)&rPor, nMaxSizeDiff );
518 :
519 0 : nBreakWidth += nItalic + nLeftRightBorderSpace;
520 : }
521 : else
522 0 : nBreakWidth = 0;
523 :
524 0 : if( pHanging )
525 0 : nBreakPos = nCutPos;
526 :
527 0 : return false;
528 : }
529 :
530 : // returns true if word at position nPos has a diffenrent spelling
531 : // if hyphenated at this position (old german spelling)
532 0 : bool SwTxtGuess::AlternativeSpelling( const SwTxtFormatInfo &rInf,
533 : const sal_Int32 nPos )
534 : {
535 : // get word boundaries
536 : Boundary aBound =
537 0 : g_pBreakIt->GetBreakIter()->getWordBoundary( rInf.GetTxt(), nPos,
538 0 : g_pBreakIt->GetLocale( rInf.GetFont()->GetLanguage() ),
539 0 : WordType::DICTIONARY_WORD, true );
540 0 : nBreakStart = aBound.startPos;
541 0 : sal_Int32 nWordLen = aBound.endPos - nBreakStart;
542 :
543 : // if everything else fails, we want to cut at nPos
544 0 : nCutPos = nPos;
545 :
546 0 : OUString aTxt( rInf.GetTxt().copy( nBreakStart, nWordLen ) );
547 :
548 : // check, if word has alternative spelling
549 0 : Reference< XHyphenator > xHyph( ::GetHyphenator() );
550 : OSL_ENSURE( xHyph.is(), "Hyphenator is missing");
551 : //! subtract 1 since the UNO-interface is 0 based
552 0 : xHyphWord = xHyph->queryAlternativeSpelling( aTxt,
553 0 : g_pBreakIt->GetLocale( rInf.GetFont()->GetLanguage() ),
554 0 : nPos - nBreakStart, rInf.GetHyphValues() );
555 0 : return xHyphWord.is() && xHyphWord->isAlternativeSpelling();
556 : }
557 :
558 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
