/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* * This file is part of the LibreOffice project. * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. * * This file incorporates work covered by the following license notice: * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed * with this work for additional information regarding copyright * ownership. The ASF licenses this file to you under the Apache * License, Version 2.0 (the "License"); you may not use this file * except in compliance with the License. You may obtain a copy of * the License at http://www.apache.org/licenses/LICENSE-2.0 . */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include SwColumnFrame::SwColumnFrame( SwFrameFormat *pFormat, SwFrame* pSib ): SwFootnoteBossFrame( pFormat, pSib ) { mnFrameType = SwFrameType::Column; SwBodyFrame* pColBody = new SwBodyFrame( pFormat->GetDoc()->GetDfltFrameFormat(), pSib ); pColBody->InsertBehind( this, nullptr ); // ColumnFrames now with BodyFrame SetMaxFootnoteHeight( LONG_MAX ); } void SwColumnFrame::DestroyImpl() { SwFrameFormat *pFormat = GetFormat(); SwDoc *pDoc; if ( !(pDoc = pFormat->GetDoc())->IsInDtor() && pFormat->HasOnlyOneListener() ) { //I'm the only one, delete the format. //Get default format before, so the base class can cope with it. pDoc->GetDfltFrameFormat()->Add( this ); // tdf#134009, like #i32968# avoid SwUndoFrameFormatDelete creation, // the format is owned by the SwColumnFrame, see lcl_AddColumns() ::sw::UndoGuard const ug(pDoc->GetIDocumentUndoRedo()); pDoc->DelFrameFormat( pFormat ); } SwFootnoteBossFrame::DestroyImpl(); } SwColumnFrame::~SwColumnFrame() { } static void lcl_RemoveColumns( SwLayoutFrame *pCont, sal_uInt16 nCnt ) { OSL_ENSURE( pCont && pCont->Lower() && pCont->Lower()->IsColumnFrame(), "no columns to remove." ); SwColumnFrame *pColumn = static_cast(pCont->Lower()); sw_RemoveFootnotes( pColumn, true, true ); while ( pColumn->GetNext() ) { OSL_ENSURE( pColumn->GetNext()->IsColumnFrame(), "neighbor of ColumnFrame is no ColumnFrame." ); pColumn = static_cast(pColumn->GetNext()); } for ( sal_uInt16 i = 0; i < nCnt; ++i ) { SwColumnFrame *pTmp = static_cast(pColumn->GetPrev()); pColumn->Cut(); SwFrame::DestroyFrame(pColumn); //format is going to be destroyed in the DTor if needed. pColumn = pTmp; } } static SwLayoutFrame * lcl_FindColumns( SwLayoutFrame *pLay, sal_uInt16 nCount ) { SwFrame *pCol = pLay->Lower(); if ( pLay->IsPageFrame() ) pCol = static_cast(pLay)->FindBodyCont()->Lower(); if ( pCol && pCol->IsColumnFrame() ) { SwFrame *pTmp = pCol; sal_uInt16 i; for ( i = 0; pTmp; pTmp = pTmp->GetNext(), ++i ) /* do nothing */; return i == nCount ? static_cast(pCol) : nullptr; } return nullptr; } static bool lcl_AddColumns( SwLayoutFrame *pCont, sal_uInt16 nCount ) { SwDoc *pDoc = pCont->GetFormat()->GetDoc(); const bool bMod = pDoc->getIDocumentState().IsModified(); //Formats should be shared whenever possible. If a neighbour already has //the same column settings we can add them to the same format. //The neighbour can be searched using the format, however the owner of the //attribute depends on the frame type. SwLayoutFrame *pAttrOwner = pCont; if ( pCont->IsBodyFrame() ) pAttrOwner = pCont->FindPageFrame(); SwLayoutFrame *pNeighbourCol = nullptr; SwIterator aIter( *pAttrOwner->GetFormat() ); SwLayoutFrame *pNeighbour = aIter.First(); sal_uInt16 nAdd = 0; SwFrame *pCol = pCont->Lower(); if ( pCol && pCol->IsColumnFrame() ) for ( nAdd = 1; pCol; pCol = pCol->GetNext(), ++nAdd ) /* do nothing */; while ( pNeighbour ) { if ( nullptr != (pNeighbourCol = lcl_FindColumns( pNeighbour, nCount+nAdd )) && pNeighbourCol != pCont ) break; pNeighbourCol = nullptr; pNeighbour = aIter.Next(); } bool bRet; SwTwips nMax = pCont->IsPageBodyFrame() ? pCont->FindPageFrame()->GetMaxFootnoteHeight() : LONG_MAX; if ( pNeighbourCol ) { bRet = false; SwFrame *pTmp = pCont->Lower(); while ( pTmp ) { pTmp = pTmp->GetNext(); pNeighbourCol = static_cast(pNeighbourCol->GetNext()); } for ( sal_uInt16 i = 0; i < nCount; ++i ) { SwColumnFrame *pTmpCol = new SwColumnFrame( pNeighbourCol->GetFormat(), pCont ); pTmpCol->SetMaxFootnoteHeight( nMax ); pTmpCol->InsertBefore( pCont, nullptr ); pNeighbourCol = static_cast(pNeighbourCol->GetNext()); } } else { bRet = true; // tdf#103359, like #i32968# Inserting columns in the section causes MakeFrameFormat to put // nCount objects of type SwUndoFrameFormat on the undo stack. We don't want them. ::sw::UndoGuard const undoGuard(pDoc->GetIDocumentUndoRedo()); for ( sal_uInt16 i = 0; i < nCount; ++i ) { SwFrameFormat *pFormat = pDoc->MakeFrameFormat(OUString(), pDoc->GetDfltFrameFormat()); SwColumnFrame *pTmp = new SwColumnFrame( pFormat, pCont ); pTmp->SetMaxFootnoteHeight( nMax ); pTmp->Paste( pCont ); } } if ( !bMod ) pDoc->getIDocumentState().ResetModified(); return bRet; } /** add or remove columns from a layoutframe. * * Normally, a layoutframe with a column attribute of 1 or 0 columns contains * no columnframe. However, a sectionframe with "footnotes at the end" needs * a columnframe. * * @param rOld * @param rNew * @param bChgFootnote if true, the columnframe will be inserted or removed, if necessary. */ void SwLayoutFrame::ChgColumns( const SwFormatCol &rOld, const SwFormatCol &rNew, const bool bChgFootnote ) { if ( rOld.GetNumCols() <= 1 && rNew.GetNumCols() <= 1 && !bChgFootnote ) return; // #i97379# // If current lower is a no text frame, then columns are not allowed if ( Lower() && Lower()->IsNoTextFrame() && rNew.GetNumCols() > 1 ) { return; } sal_uInt16 nNewNum, nOldNum = 1; if( Lower() && Lower()->IsColumnFrame() ) { SwFrame* pCol = Lower(); while( nullptr != (pCol=pCol->GetNext()) ) ++nOldNum; } nNewNum = rNew.GetNumCols(); if( !nNewNum ) ++nNewNum; bool bAtEnd; if( IsSctFrame() ) bAtEnd = static_cast(this)->IsAnyNoteAtEnd(); else bAtEnd = false; //Setting the column width is only needed for new formats. bool bAdjustAttributes = nOldNum != rOld.GetNumCols(); //The content is saved and restored if the column count is different. SwFrame *pSave = nullptr; if( nOldNum != nNewNum || bChgFootnote ) { SwDoc *pDoc = GetFormat()->GetDoc(); OSL_ENSURE( pDoc, "FrameFormat doesn't return a document." ); // SaveContent would also suck up the content of the footnote container // and store it within the normal text flow. if( IsPageBodyFrame() ) pDoc->getIDocumentLayoutAccess().GetCurrentLayout()->RemoveFootnotes( static_cast(GetUpper()) ); pSave = ::SaveContent( this ); //If columns exist, they get deleted if a column count of 0 or 1 is requested. if ( nNewNum == 1 && !bAtEnd ) { ::lcl_RemoveColumns( this, nOldNum ); if ( IsBodyFrame() ) SetFrameFormat( pDoc->GetDfltFrameFormat() ); else GetFormat()->SetFormatAttr( SwFormatFillOrder() ); if ( pSave ) ::RestoreContent( pSave, this, nullptr ); return; } if ( nOldNum == 1 ) { if ( IsBodyFrame() ) SetFrameFormat( pDoc->GetColumnContFormat() ); else GetFormat()->SetFormatAttr( SwFormatFillOrder( ATT_LEFT_TO_RIGHT ) ); if( !Lower() || !Lower()->IsColumnFrame() ) --nOldNum; } if ( nOldNum > nNewNum ) { ::lcl_RemoveColumns( this, nOldNum - nNewNum ); bAdjustAttributes = true; } else if( nOldNum < nNewNum ) { sal_uInt16 nAdd = nNewNum - nOldNum; bAdjustAttributes = lcl_AddColumns( this, nAdd ); } } if ( !bAdjustAttributes ) { if ( rOld.GetLineWidth() != rNew.GetLineWidth() || rOld.GetWishWidth() != rNew.GetWishWidth() || rOld.IsOrtho() != rNew.IsOrtho() ) bAdjustAttributes = true; else { const size_t nCount = std::min( rNew.GetColumns().size(), rOld.GetColumns().size() ); for ( size_t i = 0; i < nCount; ++i ) if ( !(rOld.GetColumns()[i] == rNew.GetColumns()[i]) ) { bAdjustAttributes = true; break; } } } //The columns can now be easily adjusted. AdjustColumns( &rNew, bAdjustAttributes ); //Don't restore the content before. An earlier restore would trigger useless //actions during setup. if ( pSave ) { OSL_ENSURE( Lower() && Lower()->IsLayoutFrame() && static_cast(Lower())->Lower() && static_cast(Lower())->Lower()->IsLayoutFrame(), "no column body." ); // ColumnFrames contain BodyFrames ::RestoreContent( pSave, static_cast(static_cast(Lower())->Lower()), nullptr ); } } void SwLayoutFrame::AdjustColumns( const SwFormatCol *pAttr, bool bAdjustAttributes ) { if( !Lower()->GetNext() ) { Lower()->ChgSize( getFramePrintArea().SSize() ); return; } const bool bVert = IsVertical(); SwRectFn fnRect = bVert ? ( IsVertLR() ? (IsVertLRBT() ? fnRectVertL2RB2T : fnRectVertL2R) : fnRectVert ) : fnRectHori; //If we have a pointer or we have to configure an attribute, we set the //column widths in any case. Otherwise we check if a configuration is needed. if ( !pAttr ) { pAttr = &GetFormat()->GetCol(); if ( !bAdjustAttributes ) { long nAvail = (getFramePrintArea().*fnRect->fnGetWidth)(); for ( SwLayoutFrame *pCol = static_cast(Lower()); pCol; pCol = static_cast(pCol->GetNext()) ) nAvail -= (pCol->getFrameArea().*fnRect->fnGetWidth)(); if ( !nAvail ) return; } } //The columns can now be easily adjusted. //The widths get counted so we can give the reminder to the last one. SwTwips nAvail = (getFramePrintArea().*fnRect->fnGetWidth)(); const bool bLine = pAttr->GetLineAdj() != COLADJ_NONE; const sal_uInt16 nMin = bLine ? sal_uInt16( 20 + ( pAttr->GetLineWidth() / 2) ) : 0; const bool bR2L = IsRightToLeft(); SwFrame *pCol = bR2L ? GetLastLower() : Lower(); // #i27399# // bOrtho means we have to adjust the column frames manually. Otherwise // we may use the values returned by CalcColWidth: const bool bOrtho = pAttr->IsOrtho() && pAttr->GetNumCols() > 0; long nGutter = 0; for ( sal_uInt16 i = 0; i < pAttr->GetNumCols() && pCol; ++i ) //i118878, value returned by GetNumCols() can't be trusted { if( !bOrtho ) { const SwTwips nWidth = i == (pAttr->GetNumCols() - 1) ? nAvail : pAttr->CalcColWidth( i, sal_uInt16( (getFramePrintArea().*fnRect->fnGetWidth)() ) ); const Size aColSz = bVert ? Size( getFramePrintArea().Width(), nWidth ) : Size( nWidth, getFramePrintArea().Height() ); pCol->ChgSize( aColSz ); // With this, the ColumnBodyFrames from page columns gets adjusted and // their bFixHeight flag is set so they won't shrink/grow. // Don't use the flag with frame columns because BodyFrames in frame // columns can grow/shrink. if( IsBodyFrame() ) static_cast(pCol)->Lower()->ChgSize( aColSz ); nAvail -= nWidth; } if ( bOrtho || bAdjustAttributes ) { const SwColumn *pC = &pAttr->GetColumns()[i]; const SwAttrSet* pSet = pCol->GetAttrSet(); SvxLRSpaceItem aLR( pSet->GetLRSpace() ); //In order to have enough space for the separation lines, we have to //take them into account here. Every time two columns meet we //calculate a clearance of 20 + half the pen width on the left or //right side, respectively. const sal_uInt16 nLeft = pC->GetLeft(); const sal_uInt16 nRight = pC->GetRight(); aLR.SetLeft ( nLeft ); aLR.SetRight( nRight ); if ( bLine ) { if ( i == 0 ) { aLR.SetRight( std::max( nRight, nMin ) ); } else if ( i == pAttr->GetNumCols() - 1 ) { aLR.SetLeft ( std::max( nLeft, nMin ) ); } else { aLR.SetLeft ( std::max( nLeft, nMin ) ); aLR.SetRight( std::max( nRight, nMin ) ); } } if ( bAdjustAttributes ) { SvxULSpaceItem aUL( pSet->GetULSpace() ); aUL.SetUpper(0); aUL.SetLower(0); static_cast(pCol)->GetFormat()->SetFormatAttr( aLR ); static_cast(pCol)->GetFormat()->SetFormatAttr( aUL ); } nGutter += aLR.GetLeft() + aLR.GetRight(); } pCol = bR2L ? pCol->GetPrev() : pCol->GetNext(); } if( bOrtho ) { long nInnerWidth = ( nAvail - nGutter ) / pAttr->GetNumCols(); pCol = Lower(); for( sal_uInt16 i = 0; i < pAttr->GetNumCols() && pCol; pCol = pCol->GetNext(), ++i ) //i118878, value returned by GetNumCols() can't be trusted { SwTwips nWidth; if ( i == pAttr->GetNumCols() - 1 ) nWidth = nAvail; else { SvxLRSpaceItem aLR( pCol->GetAttrSet()->GetLRSpace() ); nWidth = nInnerWidth + aLR.GetLeft() + aLR.GetRight(); } if( nWidth < 0 ) nWidth = 0; const Size aColSz = bVert ? Size( getFramePrintArea().Width(), nWidth ) : Size( nWidth, getFramePrintArea().Height() ); pCol->ChgSize( aColSz ); if( IsBodyFrame() ) static_cast(pCol)->Lower()->ChgSize( aColSz ); nAvail -= nWidth; } } } /* vim:set shiftwidth=4 softtabstop=4 expandtab: */