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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 <com/sun/star/i18n/ScriptType.hpp>
21 : #include <vcl/outdev.hxx>
22 : #include <IDocumentSettingAccess.hxx>
23 :
24 : #include "frame.hxx"
25 : #include "paratr.hxx"
26 : #include "itrtxt.hxx"
27 : #include "porglue.hxx"
28 : #include "porlay.hxx"
29 : #include "porfly.hxx"
30 : #include "pordrop.hxx"
31 : #include "pormulti.hxx"
32 : #include <portab.hxx>
33 :
34 : #define MIN_TAB_WIDTH 60
35 :
36 : using namespace ::com::sun::star;
37 :
38 615 : void SwTextAdjuster::FormatBlock( )
39 : {
40 : // Block format does not apply to the last line.
41 : // And for tabs it doesn't exist out of tradition
42 : // If we have Flys we continue.
43 :
44 615 : const SwLinePortion *pFly = 0;
45 :
46 1229 : bool bSkip = !IsLastBlock() &&
47 1229 : nStart + pCurr->GetLen() >= GetInfo().GetText().getLength();
48 :
49 : // Multi-line fields are tricky, because we need to check whether there are
50 : // any other text portions in the paragraph.
51 615 : if( bSkip )
52 : {
53 326 : const SwLineLayout *pLay = pCurr->GetNext();
54 652 : while( pLay && !pLay->GetLen() )
55 : {
56 0 : const SwLinePortion *pPor = pCurr->GetFirstPortion();
57 0 : while( pPor && bSkip )
58 : {
59 0 : if( pPor->InTextGrp() )
60 0 : bSkip = false;
61 0 : pPor = pPor->GetPortion();
62 : }
63 0 : pLay = bSkip ? pLay->GetNext() : 0;
64 : }
65 : }
66 :
67 615 : if( bSkip )
68 : {
69 326 : if( !GetInfo().GetParaPortion()->HasFly() )
70 : {
71 299 : if( IsLastCenter() )
72 0 : CalcFlyAdjust( pCurr );
73 299 : pCurr->FinishSpaceAdd();
74 299 : return;
75 : }
76 : else
77 : {
78 27 : const SwLinePortion *pTmpFly = NULL;
79 :
80 : // End at the last Fly
81 27 : const SwLinePortion *pPos = pCurr->GetFirstPortion();
82 132 : while( pPos )
83 : {
84 : // Look for the last Fly which has text coming after it:
85 78 : if( pPos->IsFlyPortion() )
86 0 : pTmpFly = pPos; // Found a Fly
87 78 : else if ( pTmpFly && pPos->InTextGrp() )
88 : {
89 0 : pFly = pTmpFly; // A Fly with follow-up text!
90 0 : pTmpFly = NULL;
91 : }
92 78 : pPos = pPos->GetPortion();
93 : }
94 : // End if we didn't find one
95 27 : if( !pFly )
96 : {
97 27 : if( IsLastCenter() )
98 0 : CalcFlyAdjust( pCurr );
99 27 : pCurr->FinishSpaceAdd();
100 27 : return;
101 : }
102 : }
103 : }
104 :
105 289 : const sal_Int32 nOldIdx = GetInfo().GetIdx();
106 289 : GetInfo().SetIdx( nStart );
107 289 : CalcNewBlock( pCurr, pFly );
108 289 : GetInfo().SetIdx( nOldIdx );
109 289 : GetInfo().GetParaPortion()->GetRepaint().SetOfst(0);
110 : }
111 :
112 0 : static bool lcl_CheckKashidaPositions( SwScriptInfo& rSI, SwTextSizeInfo& rInf, SwTextIter& rItr,
113 : sal_Int32& rKashidas, sal_Int32& nGluePortion )
114 : {
115 : // i60594 validate Kashida justification
116 0 : sal_Int32 nIdx = rItr.GetStart();
117 0 : sal_Int32 nEnd = rItr.GetEnd();
118 :
119 : // Note on calling KashidaJustify():
120 : // Kashida positions may be marked as invalid. Therefore KashidaJustify may return the clean
121 : // total number of kashida positions, or the number of kashida positions after some positions
122 : // have been dropped.
123 : // Here we want the clean total, which is OK: We have called ClearKashidaInvalid() before.
124 0 : rKashidas = rSI.KashidaJustify ( 0, 0, rItr.GetStart(), rItr.GetLength(), 0 );
125 :
126 0 : if (rKashidas <= 0) // nothing to do
127 0 : return true;
128 :
129 : // kashida positions found in SwScriptInfo are not necessarily valid in every font
130 : // if two characters are replaced by a ligature glyph, there will be no place for a kashida
131 0 : sal_Int32* pKashidaPos = new sal_Int32[ rKashidas ];
132 0 : sal_Int32* pKashidaPosDropped = new sal_Int32[ rKashidas ];
133 0 : rSI.GetKashidaPositions ( nIdx, rItr.GetLength(), pKashidaPos );
134 0 : sal_Int32 nKashidaIdx = 0;
135 0 : while ( rKashidas && nIdx < nEnd )
136 : {
137 0 : rItr.SeekAndChgAttrIter( nIdx, rInf.GetOut() );
138 0 : sal_Int32 nNext = rItr.GetNextAttr();
139 :
140 : // is there also a script change before?
141 : // if there is, nNext should point to the script change
142 0 : sal_Int32 nNextScript = rSI.NextScriptChg( nIdx );
143 0 : if( nNextScript < nNext )
144 0 : nNext = nNextScript;
145 :
146 0 : if ( nNext == COMPLETE_STRING || nNext > nEnd )
147 0 : nNext = nEnd;
148 0 : sal_Int32 nKashidasInAttr = rSI.KashidaJustify ( 0, 0, nIdx, nNext - nIdx );
149 0 : if (nKashidasInAttr > 0)
150 : {
151 : // Kashida glyph looks suspicious, skip Kashida justification
152 0 : if ( rInf.GetOut()->GetMinKashida() <= 0 )
153 : {
154 0 : delete[] pKashidaPos;
155 0 : delete[] pKashidaPosDropped;
156 0 : return false;
157 : }
158 :
159 0 : sal_Int32 nKashidasDropped = 0;
160 0 : if ( !SwScriptInfo::IsArabicText( rInf.GetText(), nIdx, nNext - nIdx ) )
161 : {
162 0 : nKashidasDropped = nKashidasInAttr;
163 0 : rKashidas -= nKashidasDropped;
164 : }
165 : else
166 : {
167 0 : ComplexTextLayoutMode nOldLayout = rInf.GetOut()->GetLayoutMode();
168 0 : rInf.GetOut()->SetLayoutMode ( nOldLayout | TEXT_LAYOUT_BIDI_RTL );
169 0 : nKashidasDropped = rInf.GetOut()->ValidateKashidas ( rInf.GetText(), nIdx, nNext - nIdx,
170 : nKashidasInAttr, pKashidaPos + nKashidaIdx,
171 0 : pKashidaPosDropped );
172 0 : rInf.GetOut()->SetLayoutMode ( nOldLayout );
173 0 : if ( nKashidasDropped )
174 : {
175 0 : rSI.MarkKashidasInvalid(nKashidasDropped, pKashidaPosDropped);
176 0 : rKashidas -= nKashidasDropped;
177 0 : nGluePortion -= nKashidasDropped;
178 : }
179 : }
180 0 : nKashidaIdx += nKashidasInAttr;
181 : }
182 0 : nIdx = nNext;
183 : }
184 0 : delete[] pKashidaPos;
185 0 : delete[] pKashidaPosDropped;
186 :
187 : // return false if all kashidas have been eliminated
188 0 : return (rKashidas > 0);
189 : }
190 :
191 0 : static bool lcl_CheckKashidaWidth ( SwScriptInfo& rSI, SwTextSizeInfo& rInf, SwTextIter& rItr, sal_Int32& rKashidas,
192 : sal_Int32& nGluePortion, const long nGluePortionWidth, long& nSpaceAdd )
193 : {
194 : // check kashida width
195 : // if width is smaller than minimal kashida width allowed by fonts in the current line
196 : // drop one kashida after the other until kashida width is OK
197 0 : while (rKashidas)
198 : {
199 0 : bool bAddSpaceChanged = false;
200 0 : sal_Int32 nIdx = rItr.GetStart();
201 0 : sal_Int32 nEnd = rItr.GetEnd();
202 0 : while ( nIdx < nEnd )
203 : {
204 0 : rItr.SeekAndChgAttrIter( nIdx, rInf.GetOut() );
205 0 : sal_Int32 nNext = rItr.GetNextAttr();
206 :
207 : // is there also a script change before?
208 : // if there is, nNext should point to the script change
209 0 : sal_Int32 nNextScript = rSI.NextScriptChg( nIdx );
210 0 : if( nNextScript < nNext )
211 0 : nNext = nNextScript;
212 :
213 0 : if ( nNext == COMPLETE_STRING || nNext > nEnd )
214 0 : nNext = nEnd;
215 0 : sal_Int32 nKashidasInAttr = rSI.KashidaJustify ( 0, 0, nIdx, nNext - nIdx );
216 :
217 0 : long nFontMinKashida = rInf.GetOut()->GetMinKashida();
218 0 : if ( nFontMinKashida && nKashidasInAttr > 0 && SwScriptInfo::IsArabicText( rInf.GetText(), nIdx, nNext - nIdx ) )
219 : {
220 0 : sal_Int32 nKashidasDropped = 0;
221 0 : while ( rKashidas && nGluePortion && nKashidasInAttr > 0 &&
222 0 : nSpaceAdd / SPACING_PRECISION_FACTOR < nFontMinKashida )
223 : {
224 0 : --nGluePortion;
225 0 : --rKashidas;
226 0 : --nKashidasInAttr;
227 0 : ++nKashidasDropped;
228 0 : if( !rKashidas || !nGluePortion ) // nothing left, return false to
229 0 : return false; // do regular blank justification
230 :
231 0 : nSpaceAdd = nGluePortionWidth / nGluePortion;
232 0 : bAddSpaceChanged = true;
233 : }
234 0 : if( nKashidasDropped )
235 0 : rSI.MarkKashidasInvalid( nKashidasDropped, nIdx, nNext - nIdx );
236 : }
237 0 : if ( bAddSpaceChanged )
238 0 : break; // start all over again
239 0 : nIdx = nNext;
240 : }
241 0 : if ( !bAddSpaceChanged )
242 0 : break; // everything was OK
243 : }
244 0 : return true;
245 : }
246 :
247 : // CalcNewBlock() must only be called _after_ CalcLine()!
248 : // We always span between two RandPortions or FixPortions (Tabs and Flys).
249 : // We count the Glues and call ExpandBlock.
250 294 : void SwTextAdjuster::CalcNewBlock( SwLineLayout *pCurrent,
251 : const SwLinePortion *pStopAt, SwTwips nReal, bool bSkipKashida )
252 : {
253 : OSL_ENSURE( GetInfo().IsMulti() || SVX_ADJUST_BLOCK == GetAdjust(),
254 : "CalcNewBlock: Why?" );
255 : OSL_ENSURE( pCurrent->Height(), "SwTextAdjuster::CalcBlockAdjust: missing CalcLine()" );
256 :
257 294 : pCurrent->InitSpaceAdd();
258 294 : sal_Int32 nGluePortion = 0;
259 294 : sal_Int32 nCharCnt = 0;
260 294 : sal_uInt16 nSpaceIdx = 0;
261 :
262 : // i60591: hennerdrews
263 294 : SwScriptInfo& rSI = GetInfo().GetParaPortion()->GetScriptInfo();
264 294 : SwTextSizeInfo aInf ( GetTextFrm() );
265 588 : SwTextIter aItr ( GetTextFrm(), &aInf );
266 :
267 294 : if ( rSI.CountKashida() )
268 : {
269 0 : while (aItr.GetCurr() != pCurrent && aItr.GetNext())
270 0 : aItr.Next();
271 :
272 0 : if( bSkipKashida )
273 : {
274 0 : rSI.SetNoKashidaLine ( aItr.GetStart(), aItr.GetLength());
275 : }
276 : else
277 : {
278 0 : rSI.ClearKashidaInvalid ( aItr.GetStart(), aItr.GetLength() );
279 0 : rSI.ClearNoKashidaLine( aItr.GetStart(), aItr.GetLength() );
280 : }
281 : }
282 :
283 : // Do not forget: CalcRightMargin() sets pCurrent->Width() to the line width!
284 294 : if (!bSkipKashida)
285 289 : CalcRightMargin( pCurrent, nReal );
286 :
287 : // #i49277#
288 : const bool bDoNotJustifyLinesWithManualBreak =
289 294 : GetTextFrm()->GetNode()->getIDocumentSettingAccess()->get(DocumentSettingId::DO_NOT_JUSTIFY_LINES_WITH_MANUAL_BREAK);
290 :
291 294 : SwLinePortion *pPos = pCurrent->GetPortion();
292 :
293 1787 : while( pPos )
294 : {
295 1199 : if ( bDoNotJustifyLinesWithManualBreak &&
296 1199 : pPos->IsBreakPortion() && !IsLastBlock() )
297 : {
298 0 : pCurrent->FinishSpaceAdd();
299 0 : break;
300 : }
301 :
302 1199 : if ( pPos->InTextGrp() )
303 593 : nGluePortion = nGluePortion + static_cast<SwTextPortion*>(pPos)->GetSpaceCnt( GetInfo(), nCharCnt );
304 606 : else if( pPos->IsMultiPortion() )
305 : {
306 0 : SwMultiPortion* pMulti = static_cast<SwMultiPortion*>(pPos);
307 : // a multiportion with a tabulator inside breaks the text adjustment
308 : // a ruby portion will not be stretched by text adjustment
309 : // a double line portion takes additional space for each blank
310 : // in the wider line
311 0 : if( pMulti->HasTabulator() )
312 : {
313 0 : if ( nSpaceIdx == pCurrent->GetLLSpaceAddCount() )
314 0 : pCurrent->SetLLSpaceAdd( 0, nSpaceIdx );
315 :
316 0 : nSpaceIdx++;
317 0 : nGluePortion = 0;
318 0 : nCharCnt = 0;
319 : }
320 0 : else if( pMulti->IsDouble() )
321 0 : nGluePortion = nGluePortion + static_cast<SwDoubleLinePortion*>(pMulti)->GetSpaceCnt();
322 0 : else if ( pMulti->IsBidi() )
323 0 : nGluePortion = nGluePortion + static_cast<SwBidiPortion*>(pMulti)->GetSpaceCnt( GetInfo() ); // i60594
324 : }
325 :
326 1199 : if( pPos->InGlueGrp() )
327 : {
328 299 : if( pPos->InFixMargGrp() )
329 : {
330 299 : if ( nSpaceIdx == pCurrent->GetLLSpaceAddCount() )
331 10 : pCurrent->SetLLSpaceAdd( 0, nSpaceIdx );
332 :
333 299 : const long nGluePortionWidth = static_cast<SwGluePortion*>(pPos)->GetPrtGlue() *
334 299 : SPACING_PRECISION_FACTOR;
335 :
336 299 : sal_Int32 nKashidas = 0;
337 299 : if( nGluePortion && rSI.CountKashida() && !bSkipKashida )
338 : {
339 : // kashida positions found in SwScriptInfo are not necessarily valid in every font
340 : // if two characters are replaced by a ligature glyph, there will be no place for a kashida
341 0 : if ( !lcl_CheckKashidaPositions ( rSI, aInf, aItr, nKashidas, nGluePortion ))
342 : {
343 : // all kashida positions are invalid
344 : // do regular blank justification
345 0 : pCurrent->FinishSpaceAdd();
346 0 : GetInfo().SetIdx( nStart );
347 0 : CalcNewBlock( pCurrent, pStopAt, nReal, true );
348 0 : return;
349 : }
350 : }
351 :
352 299 : if( nGluePortion )
353 : {
354 285 : long nSpaceAdd = nGluePortionWidth / nGluePortion;
355 :
356 : // i60594
357 285 : if( rSI.CountKashida() && !bSkipKashida )
358 : {
359 0 : if( !lcl_CheckKashidaWidth( rSI, aInf, aItr, nKashidas, nGluePortion, nGluePortionWidth, nSpaceAdd ))
360 : {
361 : // no kashidas left
362 : // do regular blank justification
363 0 : pCurrent->FinishSpaceAdd();
364 0 : GetInfo().SetIdx( nStart );
365 0 : CalcNewBlock( pCurrent, pStopAt, nReal, true );
366 0 : return;
367 : }
368 : }
369 :
370 285 : pCurrent->SetLLSpaceAdd( nSpaceAdd , nSpaceIdx );
371 285 : pPos->Width( static_cast<SwGluePortion*>(pPos)->GetFixWidth() );
372 : }
373 14 : else if ( IsOneBlock() && nCharCnt > 1 )
374 : {
375 0 : const long nSpaceAdd = - nGluePortionWidth / ( nCharCnt - 1 );
376 0 : pCurrent->SetLLSpaceAdd( nSpaceAdd, nSpaceIdx );
377 0 : pPos->Width( static_cast<SwGluePortion*>(pPos)->GetFixWidth() );
378 : }
379 :
380 299 : nSpaceIdx++;
381 299 : nGluePortion = 0;
382 299 : nCharCnt = 0;
383 : }
384 : else
385 0 : ++nGluePortion;
386 : }
387 1199 : GetInfo().SetIdx( GetInfo().GetIdx() + pPos->GetLen() );
388 1199 : if ( pPos == pStopAt )
389 : {
390 0 : pCurrent->SetLLSpaceAdd( 0, nSpaceIdx );
391 0 : break;
392 : }
393 1199 : pPos = pPos->GetPortion();
394 294 : }
395 : }
396 :
397 0 : SwTwips SwTextAdjuster::CalcKanaAdj( SwLineLayout* pCurrent )
398 : {
399 : OSL_ENSURE( pCurrent->Height(), "SwTextAdjuster::CalcBlockAdjust: missing CalcLine()" );
400 : OSL_ENSURE( !pCurrent->GetpKanaComp(), "pKanaComp already exists!!" );
401 :
402 0 : std::deque<sal_uInt16> *pNewKana = new std::deque<sal_uInt16>();
403 0 : pCurrent->SetKanaComp( pNewKana );
404 :
405 0 : const sal_uInt16 nNull = 0;
406 0 : size_t nKanaIdx = 0;
407 0 : long nKanaDiffSum = 0;
408 0 : SwTwips nRepaintOfst = 0;
409 0 : SwTwips nX = 0;
410 0 : bool bNoCompression = false;
411 :
412 : // Do not forget: CalcRightMargin() sets pCurrent->Width() to the line width!
413 0 : CalcRightMargin( pCurrent, 0 );
414 :
415 0 : SwLinePortion* pPos = pCurrent->GetPortion();
416 :
417 0 : while( pPos )
418 : {
419 0 : if ( pPos->InTextGrp() )
420 : {
421 : // get maximum portion width from info structure, calculated
422 : // during text formatting
423 0 : sal_uInt16 nMaxWidthDiff = GetInfo().GetMaxWidthDiff( pPos );
424 :
425 : // check, if information is stored under other key
426 0 : if ( !nMaxWidthDiff && pPos == pCurrent->GetFirstPortion() )
427 0 : nMaxWidthDiff = GetInfo().GetMaxWidthDiff( pCurrent );
428 :
429 : // calculate difference between portion width and max. width
430 0 : nKanaDiffSum += nMaxWidthDiff;
431 :
432 : // we store the beginning of the first compressable portion
433 : // for repaint
434 0 : if ( nMaxWidthDiff && !nRepaintOfst )
435 0 : nRepaintOfst = nX + GetLeftMargin();
436 : }
437 0 : else if( pPos->InGlueGrp() && pPos->InFixMargGrp() )
438 : {
439 0 : if ( nKanaIdx == pCurrent->GetKanaComp().size() )
440 0 : pCurrent->GetKanaComp().push_back( nNull );
441 :
442 : sal_uInt16 nRest;
443 :
444 0 : if ( pPos->InTabGrp() )
445 : {
446 0 : nRest = ! bNoCompression &&
447 0 : ( pPos->Width() > MIN_TAB_WIDTH ) ?
448 0 : pPos->Width() - MIN_TAB_WIDTH :
449 0 : 0;
450 :
451 : // for simplifying the handling of left, right ... tabs,
452 : // we do expand portions, which are lying behind
453 : // those special tabs
454 0 : bNoCompression = !pPos->IsTabLeftPortion();
455 : }
456 : else
457 : {
458 0 : nRest = ! bNoCompression ?
459 0 : static_cast<SwGluePortion*>(pPos)->GetPrtGlue() :
460 0 : 0;
461 :
462 0 : bNoCompression = false;
463 : }
464 :
465 0 : if( nKanaDiffSum )
466 : {
467 0 : sal_uLong nCompress = ( 10000 * nRest ) / nKanaDiffSum;
468 :
469 0 : if ( nCompress >= 10000 )
470 : // kanas can be expanded to 100%, and there is still
471 : // some space remaining
472 0 : nCompress = 0;
473 :
474 : else
475 0 : nCompress = 10000 - nCompress;
476 :
477 0 : ( pCurrent->GetKanaComp() )[ nKanaIdx ] = (sal_uInt16)nCompress;
478 0 : nKanaDiffSum = 0;
479 : }
480 :
481 0 : nKanaIdx++;
482 : }
483 :
484 0 : nX += pPos->Width();
485 0 : pPos = pPos->GetPortion();
486 : }
487 :
488 : // set portion width
489 0 : nKanaIdx = 0;
490 0 : sal_uInt16 nCompress = ( pCurrent->GetKanaComp() )[ nKanaIdx ];
491 0 : pPos = pCurrent->GetPortion();
492 0 : long nDecompress = 0;
493 0 : nKanaDiffSum = 0;
494 :
495 0 : while( pPos )
496 : {
497 0 : if ( pPos->InTextGrp() )
498 : {
499 0 : const sal_uInt16 nMinWidth = pPos->Width();
500 :
501 : // get maximum portion width from info structure, calculated
502 : // during text formatting
503 0 : sal_uInt16 nMaxWidthDiff = GetInfo().GetMaxWidthDiff( pPos );
504 :
505 : // check, if information is stored under other key
506 0 : if ( !nMaxWidthDiff && pPos == pCurrent->GetFirstPortion() )
507 0 : nMaxWidthDiff = GetInfo().GetMaxWidthDiff( pCurrent );
508 0 : nKanaDiffSum += nMaxWidthDiff;
509 : pPos->Width( nMinWidth +
510 0 : ( ( 10000 - nCompress ) * nMaxWidthDiff ) / 10000 );
511 0 : nDecompress += pPos->Width() - nMinWidth;
512 : }
513 0 : else if( pPos->InGlueGrp() && pPos->InFixMargGrp() )
514 : {
515 0 : pPos->Width( static_cast<sal_uInt16>(pPos->Width() - nDecompress) );
516 :
517 0 : if ( pPos->InTabGrp() )
518 : // set fix width to width
519 0 : static_cast<SwTabPortion*>(pPos)->SetFixWidth( pPos->Width() );
520 :
521 0 : if ( ++nKanaIdx < pCurrent->GetKanaComp().size() )
522 0 : nCompress = ( pCurrent->GetKanaComp() )[ nKanaIdx ];
523 :
524 0 : nKanaDiffSum = 0;
525 0 : nDecompress = 0;
526 : }
527 0 : pPos = pPos->GetPortion();
528 : }
529 :
530 0 : return nRepaintOfst;
531 : }
532 :
533 1406 : SwMarginPortion *SwTextAdjuster::CalcRightMargin( SwLineLayout *pCurrent,
534 : SwTwips nReal )
535 : {
536 : long nRealWidth;
537 1406 : const sal_uInt16 nRealHeight = GetLineHeight();
538 1406 : const sal_uInt16 nLineHeight = pCurrent->Height();
539 :
540 1406 : sal_uInt16 nPrtWidth = pCurrent->PrtWidth();
541 1406 : SwLinePortion *pLast = pCurrent->FindLastPortion();
542 :
543 1406 : if( GetInfo().IsMulti() )
544 0 : nRealWidth = nReal;
545 : else
546 : {
547 1406 : nRealWidth = GetLineWidth();
548 : // For each FlyFrm extending into the right margin, we create a FlyPortion.
549 1406 : const long nLeftMar = GetLeftMargin();
550 1406 : SwRect aCurrRect( nLeftMar + nPrtWidth, Y() + nRealHeight - nLineHeight,
551 2812 : nRealWidth - nPrtWidth, nLineHeight );
552 :
553 1406 : SwFlyPortion *pFly = CalcFlyPortion( nRealWidth, aCurrRect );
554 2816 : while( pFly && long( nPrtWidth )< nRealWidth )
555 : {
556 4 : pLast->Append( pFly );
557 4 : pLast = pFly;
558 4 : if( pFly->Fix() > nPrtWidth )
559 2 : pFly->Width( ( pFly->Fix() - nPrtWidth) + pFly->Width() + 1);
560 4 : nPrtWidth += pFly->Width() + 1;
561 4 : aCurrRect.Left( nLeftMar + nPrtWidth );
562 4 : pFly = CalcFlyPortion( nRealWidth, aCurrRect );
563 : }
564 1406 : delete pFly;
565 : }
566 :
567 1406 : SwMarginPortion *pRight = new SwMarginPortion( 0 );
568 1406 : pLast->Append( pRight );
569 :
570 1406 : if( long( nPrtWidth )< nRealWidth )
571 1395 : pRight->PrtWidth( sal_uInt16( nRealWidth - nPrtWidth ) );
572 :
573 : // pCurrent->Width() is set to the real size, because we attach the
574 : // MarginPortions.
575 : // This trick gives miraculous results:
576 : // If pCurrent->Width() == nRealWidth, then the adjustment gets overruled
577 : // implicitly. GetLeftMarginAdjust() and IsJustified() think they have a
578 : // line filled with chars.
579 :
580 1406 : pCurrent->PrtWidth( sal_uInt16( nRealWidth ) );
581 1406 : return pRight;
582 : }
583 :
584 1117 : void SwTextAdjuster::CalcFlyAdjust( SwLineLayout *pCurrent )
585 : {
586 : // 1) We insert a left margin:
587 1117 : SwMarginPortion *pLeft = pCurrent->CalcLeftMargin();
588 1117 : SwGluePortion *pGlue = pLeft; // the last GluePortion
589 :
590 : // 2) We attach a right margin:
591 : // CalcRightMargin also calculates a possible overlap with FlyFrms.
592 1117 : CalcRightMargin( pCurrent );
593 :
594 1117 : SwLinePortion *pPos = pLeft->GetPortion();
595 1117 : sal_Int32 nLen = 0;
596 :
597 : // If we only have one line, the text portion is consecutive and we center, then ...
598 1117 : bool bComplete = 0 == nStart;
599 1117 : const bool bTabCompat = GetTextFrm()->GetNode()->getIDocumentSettingAccess()->get(DocumentSettingId::TAB_COMPAT);
600 1117 : bool bMultiTab = false;
601 :
602 4631 : while( pPos )
603 : {
604 2397 : if ( pPos->IsMultiPortion() && static_cast<SwMultiPortion*>(pPos)->HasTabulator() )
605 0 : bMultiTab = true;
606 3525 : else if( pPos->InFixMargGrp() &&
607 1128 : ( bTabCompat ? ! pPos->InTabGrp() : ! bMultiTab ) )
608 : {
609 : // in tab compat mode we do not want to change tab portions
610 : // in non tab compat mode we do not want to change margins if we
611 : // found a multi portion with tabs
612 1121 : if( SVX_ADJUST_RIGHT == GetAdjust() )
613 133 : static_cast<SwGluePortion*>(pPos)->MoveAllGlue( pGlue );
614 : else
615 : {
616 : // We set the first text portion to right-aligned and the last one
617 : // to left-aligned.
618 : // The first text portion gets the whole Glue, but only if we have
619 : // more than one line.
620 988 : if( bComplete && GetInfo().GetText().getLength() == nLen )
621 854 : static_cast<SwGluePortion*>(pPos)->MoveHalfGlue( pGlue );
622 : else
623 : {
624 134 : if ( ! bTabCompat )
625 : {
626 0 : if( pLeft == pGlue )
627 : {
628 : // If we only have a left and right margin, the
629 : // margins share the Glue.
630 0 : if( nLen + pPos->GetLen() >= pCurrent->GetLen() )
631 0 : static_cast<SwGluePortion*>(pPos)->MoveHalfGlue( pGlue );
632 : else
633 0 : static_cast<SwGluePortion*>(pPos)->MoveAllGlue( pGlue );
634 : }
635 : else
636 : {
637 : // The last text portion retains its Glue.
638 0 : if( !pPos->IsMarginPortion() )
639 0 : static_cast<SwGluePortion*>(pPos)->MoveHalfGlue( pGlue );
640 : }
641 : }
642 : else
643 134 : static_cast<SwGluePortion*>(pPos)->MoveHalfGlue( pGlue );
644 : }
645 : }
646 :
647 1121 : pGlue = static_cast<SwGluePortion*>(pPos);
648 1121 : bComplete = false;
649 : }
650 2397 : nLen = nLen + pPos->GetLen();
651 2397 : pPos = pPos->GetPortion();
652 : }
653 :
654 1117 : if( ! bTabCompat && ! bMultiTab && SVX_ADJUST_RIGHT == GetAdjust() )
655 : // portions are moved to the right if possible
656 0 : pLeft->AdjustRight( pCurrent );
657 1117 : }
658 :
659 1732 : void SwTextAdjuster::CalcAdjLine( SwLineLayout *pCurrent )
660 : {
661 : OSL_ENSURE( pCurrent->IsFormatAdj(), "CalcAdjLine: Why?" );
662 :
663 1732 : pCurrent->SetFormatAdj(false);
664 :
665 1732 : SwParaPortion* pPara = GetInfo().GetParaPortion();
666 :
667 1732 : switch( GetAdjust() )
668 : {
669 : case SVX_ADJUST_RIGHT:
670 : case SVX_ADJUST_CENTER:
671 : {
672 1117 : CalcFlyAdjust( pCurrent );
673 1117 : pPara->GetRepaint().SetOfst( 0 );
674 1117 : break;
675 : }
676 : case SVX_ADJUST_BLOCK:
677 : {
678 615 : FormatBlock();
679 615 : break;
680 : }
681 0 : default : return;
682 : }
683 : }
684 :
685 : // This is a quite complicated calculation: nCurrWidth is the width _before_
686 : // adding the word, that still fits onto the line! For this reason the FlyPortion's
687 : // width is still correct if we get a deadlock-situation of:
688 : // bFirstWord && !WORDFITS
689 1410 : SwFlyPortion *SwTextAdjuster::CalcFlyPortion( const long nRealWidth,
690 : const SwRect &rCurrRect )
691 : {
692 1410 : SwTextFly aTextFly( GetTextFrm() );
693 :
694 1410 : const sal_uInt16 nCurrWidth = pCurr->PrtWidth();
695 1410 : SwFlyPortion *pFlyPortion = 0;
696 :
697 1410 : SwRect aLineVert( rCurrRect );
698 1410 : if ( GetTextFrm()->IsRightToLeft() )
699 18 : GetTextFrm()->SwitchLTRtoRTL( aLineVert );
700 1410 : if ( GetTextFrm()->IsVertical() )
701 0 : GetTextFrm()->SwitchHorizontalToVertical( aLineVert );
702 :
703 : // aFlyRect is document-global!
704 1410 : SwRect aFlyRect( aTextFly.GetFrm( aLineVert ) );
705 :
706 1410 : if ( GetTextFrm()->IsRightToLeft() )
707 18 : GetTextFrm()->SwitchRTLtoLTR( aFlyRect );
708 1410 : if ( GetTextFrm()->IsVertical() )
709 0 : GetTextFrm()->SwitchVerticalToHorizontal( aFlyRect );
710 :
711 : // If a Frame overlapps we open a Portion
712 1410 : if( aFlyRect.HasArea() )
713 : {
714 : // aLocal is frame-local
715 8 : SwRect aLocal( aFlyRect );
716 8 : aLocal.Pos( aLocal.Left() - GetLeftMargin(), aLocal.Top() );
717 8 : if( nCurrWidth > aLocal.Left() )
718 4 : aLocal.Left( nCurrWidth );
719 :
720 : // If the rect is wider than the line, we adjust it to the right size
721 8 : const long nLocalWidth = aLocal.Left() + aLocal.Width();
722 8 : if( nRealWidth < nLocalWidth )
723 8 : aLocal.Width( nRealWidth - aLocal.Left() );
724 8 : GetInfo().GetParaPortion()->SetFly( true );
725 8 : pFlyPortion = new SwFlyPortion( aLocal );
726 8 : pFlyPortion->Height( sal_uInt16( rCurrRect.Height() ) );
727 : // The Width could be smaller than the FixWidth, thus:
728 8 : pFlyPortion->AdjFixWidth();
729 : }
730 1410 : return pFlyPortion;
731 : }
732 :
733 : // CalcDropAdjust is called at the end by Format() if needed
734 0 : void SwTextAdjuster::CalcDropAdjust()
735 : {
736 : OSL_ENSURE( 1<GetDropLines() && SVX_ADJUST_LEFT!=GetAdjust() && SVX_ADJUST_BLOCK!=GetAdjust(),
737 : "CalcDropAdjust: No reason for DropAdjustment." );
738 :
739 0 : const sal_uInt16 nLineNumber = GetLineNr();
740 :
741 : // 1) Skip dummies
742 0 : Top();
743 :
744 0 : if( !pCurr->IsDummy() || NextLine() )
745 : {
746 : // Adjust first
747 0 : GetAdjusted();
748 :
749 0 : SwLinePortion *pPor = pCurr->GetFirstPortion();
750 :
751 : // 2) Make sure we include the ropPortion
752 : // 3) pLeft is the GluePor preceding the DropPor
753 0 : if( pPor->InGlueGrp() && pPor->GetPortion()
754 0 : && pPor->GetPortion()->IsDropPortion() )
755 : {
756 0 : const SwLinePortion *pDropPor = static_cast<SwDropPortion*>( pPor->GetPortion() );
757 0 : SwGluePortion *pLeft = static_cast<SwGluePortion*>( pPor );
758 :
759 : // 4) pRight: Find the GluePor coming after the DropPor
760 0 : pPor = pPor->GetPortion();
761 0 : while( pPor && !pPor->InFixMargGrp() )
762 0 : pPor = pPor->GetPortion();
763 :
764 0 : SwGluePortion *pRight = ( pPor && pPor->InGlueGrp() ) ?
765 0 : static_cast<SwGluePortion*>(pPor) : 0;
766 0 : if( pRight && pRight != pLeft )
767 : {
768 : // 5) Calculate nMinLeft. Who is the most to left?
769 : const sal_uInt16 nDropLineStart =
770 0 : sal_uInt16(GetLineStart()) + pLeft->Width() + pDropPor->Width();
771 0 : sal_uInt16 nMinLeft = nDropLineStart;
772 0 : for( sal_uInt16 i = 1; i < GetDropLines(); ++i )
773 : {
774 0 : if( NextLine() )
775 : {
776 : // Adjust first
777 0 : GetAdjusted();
778 :
779 0 : pPor = pCurr->GetFirstPortion();
780 0 : const SwMarginPortion *pMar = pPor->IsMarginPortion() ?
781 0 : static_cast<SwMarginPortion*>(pPor) : 0;
782 0 : if( !pMar )
783 0 : nMinLeft = 0;
784 : else
785 : {
786 : const sal_uInt16 nLineStart =
787 0 : sal_uInt16(GetLineStart()) + pMar->Width();
788 0 : if( nMinLeft > nLineStart )
789 0 : nMinLeft = nLineStart;
790 : }
791 : }
792 : }
793 :
794 : // 6) Distribute the Glue anew between pLeft and pRight
795 0 : if( nMinLeft < nDropLineStart )
796 : {
797 : // The Glue is always passed from pLeft to pRight, so that
798 : // the text moves to the left.
799 0 : const short nGlue = nDropLineStart - nMinLeft;
800 0 : if( !nMinLeft )
801 0 : pLeft->MoveAllGlue( pRight );
802 : else
803 0 : pLeft->MoveGlue( pRight, nGlue );
804 : }
805 : }
806 : }
807 : }
808 :
809 0 : if( nLineNumber != GetLineNr() )
810 : {
811 0 : Top();
812 0 : while( nLineNumber != GetLineNr() && Next() )
813 : ;
814 : }
815 0 : }
816 :
817 0 : void SwTextAdjuster::CalcDropRepaint()
818 : {
819 0 : Top();
820 0 : SwRepaint &rRepaint = GetInfo().GetParaPortion()->GetRepaint();
821 0 : if( rRepaint.Top() > Y() )
822 0 : rRepaint.Top( Y() );
823 0 : for( sal_uInt16 i = 1; i < GetDropLines(); ++i )
824 0 : NextLine();
825 0 : const SwTwips nBottom = Y() + GetLineHeight() - 1;
826 0 : if( rRepaint.Bottom() < nBottom )
827 0 : rRepaint.Bottom( nBottom );
828 177 : }
829 :
830 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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