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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 <editeng/ulspitem.hxx>
21 : #include <fmtclds.hxx>
22 : #include <fmtfordr.hxx>
23 : #include <frmfmt.hxx>
24 : #include "frmtool.hxx"
25 : #include "colfrm.hxx"
26 : #include "pagefrm.hxx"
27 : #include "bodyfrm.hxx"
28 : #include "rootfrm.hxx"
29 : #include "sectfrm.hxx"
30 : #include "switerator.hxx"
31 :
32 : // ftnfrm.cxx:
33 : void sw_RemoveFtns( SwFtnBossFrm* pBoss, sal_Bool bPageOnly, sal_Bool bEndNotes );
34 :
35 0 : SwColumnFrm::SwColumnFrm( SwFrmFmt *pFmt, SwFrm* pSib ):
36 0 : SwFtnBossFrm( pFmt, pSib )
37 : {
38 0 : mnType = FRMC_COLUMN;
39 0 : SwBodyFrm* pColBody = new SwBodyFrm( pFmt->GetDoc()->GetDfltFrmFmt(), pSib );
40 0 : pColBody->InsertBehind( this, 0 ); // ColumnFrms now with BodyFrm
41 0 : SetMaxFtnHeight( LONG_MAX );
42 0 : }
43 :
44 0 : SwColumnFrm::~SwColumnFrm()
45 : {
46 0 : SwFrmFmt *pFmt = GetFmt();
47 : SwDoc *pDoc;
48 0 : if ( !(pDoc = pFmt->GetDoc())->IsInDtor() && pFmt->IsLastDepend() )
49 : {
50 : //I'm the only one, delete the format.
51 : //Get default format before, so the base class can cope with it.
52 0 : pDoc->GetDfltFrmFmt()->Add( this );
53 0 : pDoc->DelFrmFmt( pFmt );
54 : }
55 0 : }
56 :
57 0 : static void lcl_RemoveColumns( SwLayoutFrm *pCont, sal_uInt16 nCnt )
58 : {
59 : OSL_ENSURE( pCont && pCont->Lower() && pCont->Lower()->IsColumnFrm(),
60 : "no columns to remove." );
61 :
62 0 : SwColumnFrm *pColumn = (SwColumnFrm*)pCont->Lower();
63 0 : sw_RemoveFtns( pColumn, sal_True, sal_True );
64 0 : while ( pColumn->GetNext() )
65 : {
66 : OSL_ENSURE( pColumn->GetNext()->IsColumnFrm(),
67 : "neighbor of ColumnFrame is no ColumnFrame." );
68 0 : pColumn = (SwColumnFrm*)pColumn->GetNext();
69 : }
70 0 : for ( sal_uInt16 i = 0; i < nCnt; ++i )
71 : {
72 0 : SwColumnFrm *pTmp = (SwColumnFrm*)pColumn->GetPrev();
73 0 : pColumn->Cut();
74 0 : delete pColumn; //format is going to be destroyed in the DTor if needed.
75 0 : pColumn = pTmp;
76 : }
77 0 : }
78 :
79 0 : static SwLayoutFrm * lcl_FindColumns( SwLayoutFrm *pLay, sal_uInt16 nCount )
80 : {
81 0 : SwFrm *pCol = pLay->Lower();
82 0 : if ( pLay->IsPageFrm() )
83 0 : pCol = ((SwPageFrm*)pLay)->FindBodyCont()->Lower();
84 :
85 0 : if ( pCol && pCol->IsColumnFrm() )
86 : {
87 0 : SwFrm *pTmp = pCol;
88 : sal_uInt16 i;
89 0 : for ( i = 0; pTmp; pTmp = pTmp->GetNext(), ++i )
90 : /* do nothing */;
91 0 : return i == nCount ? (SwLayoutFrm*)pCol : 0;
92 : }
93 0 : return 0;
94 : }
95 :
96 0 : static sal_Bool lcl_AddColumns( SwLayoutFrm *pCont, sal_uInt16 nCount )
97 : {
98 0 : SwDoc *pDoc = pCont->GetFmt()->GetDoc();
99 0 : const sal_Bool bMod = pDoc->IsModified();
100 :
101 : //Formats should be shared whenever possible. If a neighbour already has
102 : //the same column settings we can add them to the same format.
103 : //The neighbour can be searched using the format, however the owner of the
104 : //attribute depends on the frame type.
105 0 : SwLayoutFrm *pAttrOwner = pCont;
106 0 : if ( pCont->IsBodyFrm() )
107 0 : pAttrOwner = pCont->FindPageFrm();
108 0 : SwLayoutFrm *pNeighbourCol = 0;
109 0 : SwIterator<SwLayoutFrm,SwFmt> aIter( *pAttrOwner->GetFmt() );
110 0 : SwLayoutFrm *pNeighbour = aIter.First();
111 :
112 0 : sal_uInt16 nAdd = 0;
113 0 : SwFrm *pCol = pCont->Lower();
114 0 : if ( pCol && pCol->IsColumnFrm() )
115 0 : for ( nAdd = 1; pCol; pCol = pCol->GetNext(), ++nAdd )
116 : /* do nothing */;
117 0 : while ( pNeighbour )
118 : {
119 0 : if ( 0 != (pNeighbourCol = lcl_FindColumns( pNeighbour, nCount+nAdd )) &&
120 : pNeighbourCol != pCont )
121 0 : break;
122 0 : pNeighbourCol = 0;
123 0 : pNeighbour = aIter.Next();
124 : }
125 :
126 : sal_Bool bRet;
127 0 : SwTwips nMax = pCont->IsPageBodyFrm() ?
128 0 : pCont->FindPageFrm()->GetMaxFtnHeight() : LONG_MAX;
129 0 : if ( pNeighbourCol )
130 : {
131 0 : bRet = sal_False;
132 0 : SwFrm *pTmp = pCont->Lower();
133 0 : while ( pTmp )
134 : {
135 0 : pTmp = pTmp->GetNext();
136 0 : pNeighbourCol = (SwLayoutFrm*)pNeighbourCol->GetNext();
137 : }
138 0 : for ( sal_uInt16 i = 0; i < nCount; ++i )
139 : {
140 0 : SwColumnFrm *pTmpCol = new SwColumnFrm( pNeighbourCol->GetFmt(), pCont );
141 0 : pTmpCol->SetMaxFtnHeight( nMax );
142 0 : pTmpCol->InsertBefore( pCont, NULL );
143 0 : pNeighbourCol = (SwLayoutFrm*)pNeighbourCol->GetNext();
144 : }
145 : }
146 : else
147 : {
148 0 : bRet = sal_True;
149 0 : for ( sal_uInt16 i = 0; i < nCount; ++i )
150 : {
151 0 : SwFrmFmt *pFmt = pDoc->MakeFrmFmt( aEmptyOUStr, pDoc->GetDfltFrmFmt());
152 0 : SwColumnFrm *pTmp = new SwColumnFrm( pFmt, pCont );
153 0 : pTmp->SetMaxFtnHeight( nMax );
154 0 : pTmp->Paste( pCont );
155 : }
156 : }
157 :
158 0 : if ( !bMod )
159 0 : pDoc->ResetModified();
160 0 : return bRet;
161 : }
162 :
163 : /** add or remove columns from a layoutframe.
164 : *
165 : * Normally, a layoutframe with a column attribut of 1 or 0 columns contains
166 : * no columnframe. However, a sectionframe with "footnotes at the end" needs
167 : * a columnframe.
168 : *
169 : * @param rOld
170 : * @param rNew
171 : * @param bChgFtn if true, the columnframe will be inserted or removed, if necessary.
172 : */
173 0 : void SwLayoutFrm::ChgColumns( const SwFmtCol &rOld, const SwFmtCol &rNew,
174 : const sal_Bool bChgFtn )
175 : {
176 0 : if ( rOld.GetNumCols() <= 1 && rNew.GetNumCols() <= 1 && !bChgFtn )
177 0 : return;
178 : // #i97379#
179 : // If current lower is a no text frame, then columns are not allowed
180 0 : if ( Lower() && Lower()->IsNoTxtFrm() &&
181 0 : rNew.GetNumCols() > 1 )
182 : {
183 0 : return;
184 : }
185 :
186 0 : sal_uInt16 nNewNum, nOldNum = 1;
187 0 : if( Lower() && Lower()->IsColumnFrm() )
188 : {
189 0 : SwFrm* pCol = Lower();
190 0 : while( 0 != (pCol=pCol->GetNext()) )
191 0 : ++nOldNum;
192 : }
193 0 : nNewNum = rNew.GetNumCols();
194 0 : if( !nNewNum )
195 0 : ++nNewNum;
196 : sal_Bool bAtEnd;
197 0 : if( IsSctFrm() )
198 0 : bAtEnd = ((SwSectionFrm*)this)->IsAnyNoteAtEnd();
199 : else
200 0 : bAtEnd = sal_False;
201 :
202 : //Setting the column width is only needed for new formats.
203 0 : sal_Bool bAdjustAttributes = nOldNum != rOld.GetNumCols();
204 :
205 : //The content is saved and restored if the column count is different.
206 0 : SwFrm *pSave = 0;
207 0 : if( nOldNum != nNewNum || bChgFtn )
208 : {
209 0 : SwDoc *pDoc = GetFmt()->GetDoc();
210 : OSL_ENSURE( pDoc, "FrmFmt doesn't return a document." );
211 : // SaveCntnt would also suck up the content of the footnote container
212 : // and store it within the normal text flow.
213 0 : if( IsPageBodyFrm() )
214 0 : pDoc->GetCurrentLayout()->RemoveFtns( (SwPageFrm*)GetUpper(), sal_True, sal_False );
215 0 : pSave = ::SaveCntnt( this );
216 :
217 : //If columns exist, they get deleted if a column count of 0 or 1 is requested.
218 0 : if ( nNewNum == 1 && !bAtEnd )
219 : {
220 0 : ::lcl_RemoveColumns( this, nOldNum );
221 0 : if ( IsBodyFrm() )
222 0 : SetFrmFmt( pDoc->GetDfltFrmFmt() );
223 : else
224 0 : GetFmt()->SetFmtAttr( SwFmtFillOrder() );
225 0 : if ( pSave )
226 0 : ::RestoreCntnt( pSave, this, 0, true );
227 0 : return;
228 : }
229 0 : if ( nOldNum == 1 )
230 : {
231 0 : if ( IsBodyFrm() )
232 0 : SetFrmFmt( pDoc->GetColumnContFmt() );
233 : else
234 0 : GetFmt()->SetFmtAttr( SwFmtFillOrder( ATT_LEFT_TO_RIGHT ) );
235 0 : if( !Lower() || !Lower()->IsColumnFrm() )
236 0 : --nOldNum;
237 : }
238 0 : if ( nOldNum > nNewNum )
239 : {
240 0 : ::lcl_RemoveColumns( this, nOldNum - nNewNum );
241 0 : bAdjustAttributes = sal_True;
242 : }
243 0 : else if( nOldNum < nNewNum )
244 : {
245 0 : sal_uInt16 nAdd = nNewNum - nOldNum;
246 0 : bAdjustAttributes = lcl_AddColumns( this, nAdd );
247 : }
248 : }
249 :
250 0 : if ( !bAdjustAttributes )
251 : {
252 0 : if ( rOld.GetLineWidth() != rNew.GetLineWidth() ||
253 0 : rOld.GetWishWidth() != rNew.GetWishWidth() ||
254 0 : rOld.IsOrtho() != rNew.IsOrtho() )
255 0 : bAdjustAttributes = sal_True;
256 : else
257 : {
258 0 : sal_uInt16 nCount = std::min( rNew.GetColumns().size(), rOld.GetColumns().size() );
259 0 : for ( sal_uInt16 i = 0; i < nCount; ++i )
260 0 : if ( !(rOld.GetColumns()[i] == rNew.GetColumns()[i]) )
261 : {
262 0 : bAdjustAttributes = sal_True;
263 0 : break;
264 : }
265 : }
266 : }
267 :
268 : //The columns can now be easily adjusted.
269 0 : AdjustColumns( &rNew, bAdjustAttributes );
270 :
271 : //Don't restore the content before. An earlier restore would trigger useless
272 : //actions during setup.
273 0 : if ( pSave )
274 : {
275 : OSL_ENSURE( Lower() && Lower()->IsLayoutFrm() &&
276 : ((SwLayoutFrm*)Lower())->Lower() &&
277 : ((SwLayoutFrm*)Lower())->Lower()->IsLayoutFrm(),
278 : "no column body." ); // ColumnFrms contain BodyFrms
279 0 : ::RestoreCntnt( pSave, (SwLayoutFrm*)((SwLayoutFrm*)Lower())->Lower(), 0, true );
280 : }
281 : }
282 :
283 0 : void SwLayoutFrm::AdjustColumns( const SwFmtCol *pAttr, sal_Bool bAdjustAttributes )
284 : {
285 0 : if( !Lower()->GetNext() )
286 : {
287 0 : Lower()->ChgSize( Prt().SSize() );
288 0 : return;
289 : }
290 :
291 0 : const sal_Bool bVert = IsVertical();
292 : //Badaa: 2008-04-18 * Support for Classical Mongolian Script (SCMS) joint with Jiayanmin
293 0 : SwRectFn fnRect = bVert ? ( IsVertLR() ? fnRectVertL2R : fnRectVert ) : fnRectHori;
294 :
295 : //If we have a pointer or we have to configure an attribute, we set the
296 : //column widths in any case. Otherwise we check if a configuration is needed.
297 0 : if ( !pAttr )
298 : {
299 0 : pAttr = &GetFmt()->GetCol();
300 0 : if ( !bAdjustAttributes )
301 : {
302 0 : long nAvail = (Prt().*fnRect->fnGetWidth)();
303 0 : for ( SwLayoutFrm *pCol = (SwLayoutFrm*)Lower();
304 : pCol;
305 0 : pCol = (SwLayoutFrm*)pCol->GetNext() )
306 0 : nAvail -= (pCol->Frm().*fnRect->fnGetWidth)();
307 0 : if ( !nAvail )
308 0 : return;
309 : }
310 : }
311 :
312 : //The columns can now be easily adjusted.
313 : //The widths get counted so we can give the reminder to the last one.
314 0 : SwTwips nAvail = (Prt().*fnRect->fnGetWidth)();
315 0 : const sal_Bool bLine = pAttr->GetLineAdj() != COLADJ_NONE;
316 0 : const sal_uInt16 nMin = bLine ? sal_uInt16( 20 + ( pAttr->GetLineWidth() / 2) ) : 0;
317 :
318 0 : const sal_Bool bR2L = IsRightToLeft();
319 0 : SwFrm *pCol = bR2L ? GetLastLower() : Lower();
320 :
321 : // #i27399#
322 : // bOrtho means we have to adjust the column frames manually. Otherwise
323 : // we may use the values returned by CalcColWidth:
324 0 : const sal_Bool bOrtho = pAttr->IsOrtho() && pAttr->GetNumCols() > 0;
325 0 : long nGutter = 0;
326 :
327 0 : for ( sal_uInt16 i = 0; i < pAttr->GetNumCols() && pCol; ++i ) //i118878, value returned by GetNumCols() can't be trusted
328 : {
329 0 : if( !bOrtho )
330 : {
331 0 : const SwTwips nWidth = i == (pAttr->GetNumCols() - 1) ?
332 : nAvail :
333 0 : pAttr->CalcColWidth( i, sal_uInt16( (Prt().*fnRect->fnGetWidth)() ) );
334 :
335 : const Size aColSz = bVert ?
336 0 : Size( Prt().Width(), nWidth ) :
337 0 : Size( nWidth, Prt().Height() );
338 :
339 0 : pCol->ChgSize( aColSz );
340 :
341 : // With this, the ColumnBodyFrms from page columns gets adjusted and
342 : // their bFixHeight flag is set so they won't shrink/grow.
343 : // Don't use the flag with frame columns because BodyFrms in frame
344 : // columns can grow/shrink.
345 0 : if( IsBodyFrm() )
346 0 : ((SwLayoutFrm*)pCol)->Lower()->ChgSize( aColSz );
347 :
348 0 : nAvail -= nWidth;
349 : }
350 :
351 0 : if ( bOrtho || bAdjustAttributes )
352 : {
353 0 : const SwColumn *pC = &pAttr->GetColumns()[i];
354 0 : const SwAttrSet* pSet = pCol->GetAttrSet();
355 0 : SvxLRSpaceItem aLR( pSet->GetLRSpace() );
356 :
357 : //In order to have enough space for the separation lines, we have to
358 : //take them into account here. Every time two columns meet we
359 : //calculate a clearance of 20 + half the pen width on the left or
360 : //right side, respectively.
361 0 : const sal_uInt16 nLeft = pC->GetLeft();
362 0 : const sal_uInt16 nRight = pC->GetRight();
363 :
364 0 : aLR.SetLeft ( nLeft );
365 0 : aLR.SetRight( nRight );
366 :
367 0 : if ( bLine )
368 : {
369 0 : if ( i == 0 )
370 : {
371 0 : aLR.SetRight( std::max( nRight, nMin ) );
372 : }
373 0 : else if ( i == pAttr->GetNumCols() - 1 )
374 : {
375 0 : aLR.SetLeft ( std::max( nLeft, nMin ) );
376 : }
377 : else
378 : {
379 0 : aLR.SetLeft ( std::max( nLeft, nMin ) );
380 0 : aLR.SetRight( std::max( nRight, nMin ) );
381 : }
382 : }
383 :
384 0 : if ( bAdjustAttributes )
385 : {
386 0 : SvxULSpaceItem aUL( pSet->GetULSpace() );
387 0 : aUL.SetUpper( pC->GetUpper());
388 0 : aUL.SetLower( pC->GetLower());
389 :
390 0 : ((SwLayoutFrm*)pCol)->GetFmt()->SetFmtAttr( aLR );
391 0 : ((SwLayoutFrm*)pCol)->GetFmt()->SetFmtAttr( aUL );
392 : }
393 :
394 0 : nGutter += aLR.GetLeft() + aLR.GetRight();
395 : }
396 :
397 0 : pCol = bR2L ? pCol->GetPrev() : pCol->GetNext();
398 : }
399 :
400 0 : if( bOrtho )
401 : {
402 0 : long nInnerWidth = ( nAvail - nGutter ) / pAttr->GetNumCols();
403 0 : pCol = Lower();
404 0 : for( sal_uInt16 i = 0; i < pAttr->GetNumCols() && pCol; pCol = pCol->GetNext(), ++i ) //i118878, value returned by GetNumCols() can't be trusted
405 : {
406 : SwTwips nWidth;
407 0 : if ( i == pAttr->GetNumCols() - 1 )
408 0 : nWidth = nAvail;
409 : else
410 : {
411 0 : SvxLRSpaceItem aLR( pCol->GetAttrSet()->GetLRSpace() );
412 0 : nWidth = nInnerWidth + aLR.GetLeft() + aLR.GetRight();
413 : }
414 0 : if( nWidth < 0 )
415 0 : nWidth = 0;
416 :
417 : const Size aColSz = bVert ?
418 0 : Size( Prt().Width(), nWidth ) :
419 0 : Size( nWidth, Prt().Height() );
420 :
421 0 : pCol->ChgSize( aColSz );
422 :
423 0 : if( IsBodyFrm() )
424 0 : ((SwLayoutFrm*)pCol)->Lower()->ChgSize( aColSz );
425 :
426 0 : nAvail -= nWidth;
427 : }
428 : }
429 : }
430 :
431 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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