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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef _LAYHELP_HXX
#define _LAYHELP_HXX
#ifndef _SVSTDARR_HXX
#define _SVSTDARR_USHORTS
#define _SVSTDARR_ULONGS
#define _SVSTDARR_BYTES
#define _SVSTDARR_XUB_STRLEN
#include <svl/svstdarr.hxx>
#endif
#include <swrect.hxx>
class SwDoc;
class SwFrm;
class SwLayoutFrm;
class SwPageFrm;
class SwFlyFrm;
class SwSectionFrm;
class SwSectionNode;
class SvStream;
/*************************************************************************
* class SwLayCacheImpl
* contains the page break information and the text frame positions
* of the document (after loading)
* and is used inside the constructor of the layout rootframe to
* insert content and text frames at the right pages.
* For every page of the main text (body content, no footnotes, text frames etc.)
* we have the nodeindex of the first content at the page,
* the type of content ( table or paragraph )
* and if it's not the first part of the table/paragraph,
* the row/character-offset inside the table/paragraph.
* The text frame positions are stored in the SwPageFlyCache array.
*************************************************************************/
class SwFlyCache;
typedef SwFlyCache* SwFlyCachePtr;
SV_DECL_PTRARR_DEL( SwPageFlyCache, SwFlyCachePtr, 0, 4 )
class SwLayCacheImpl : public SvULongs
{
SvXub_StrLens aOffset;
SvUShorts aType;
SwPageFlyCache aFlyCache;
sal_Bool bUseFlyCache;
void Insert( USHORT nType, ULONG nIndex, xub_StrLen nOffset );
public:
SwLayCacheImpl() : SvULongs( 20, 10 ), aOffset( 20, 10 ), aType( 20, 10 ) {}
BOOL Read( SvStream& rStream );
ULONG GetBreakIndex( USHORT nIdx ) const { return GetObject( nIdx ); }
xub_StrLen GetBreakOfst( USHORT nIdx ) const { return aOffset[ nIdx ]; }
USHORT GetBreakType( USHORT nIdx ) const { return aType[ nIdx ]; }
USHORT GetFlyCount() const { return aFlyCache.Count(); }
SwFlyCache *GetFlyCache( USHORT nIdx ) const { return aFlyCache[ nIdx ]; }
sal_Bool IsUseFlyCache() const { return bUseFlyCache; }
};
/*************************************************************************
* class SwActualSection
* helps to create the sectionframes during the _InsertCnt-function
* by controlling nested sections.
*************************************************************************/
class SwActualSection
{
SwActualSection *pUpper;
SwSectionFrm *pSectFrm;
SwSectionNode *pSectNode;
public:
SwActualSection( SwActualSection *pUpper,
SwSectionFrm *pSect,
SwSectionNode *pNd );
SwSectionFrm *GetSectionFrm() { return pSectFrm; }
void SetSectionFrm( SwSectionFrm *p ) { pSectFrm = p; }
SwSectionNode *GetSectionNode() { return pSectNode;}
SwActualSection *GetUpper() { return pUpper; }
};
/*************************************************************************
* class SwLayHelper
* helps during the _InsertCnt-function to create new pages.
* If there's a layoutcache available, this information is used.
*************************************************************************/
class SwLayHelper
{
SwFrm* &rpFrm;
SwFrm* &rpPrv;
SwPageFrm* &rpPage;
SwLayoutFrm* &rpLay;
SwActualSection* &rpActualSection;
BOOL &rbBreakAfter;
SwDoc* pDoc;
SwLayCacheImpl* pImpl;
ULONG nMaxParaPerPage;
ULONG nParagraphCnt;
ULONG nStartOfContent;
USHORT nIndex; // the index in the page break array
USHORT nFlyIdx; // the index in the fly cache array
BOOL bFirst : 1;
void _CheckFlyCache( SwPageFrm* pPage );
public:
SwLayHelper( SwDoc *pD, SwFrm* &rpF, SwFrm* &rpP, SwPageFrm* &rpPg,
SwLayoutFrm* &rpL, SwActualSection* &rpA, BOOL &rBrk,
ULONG nNodeIndex, BOOL bCache );
~SwLayHelper();
ULONG CalcPageCount();
BOOL CheckInsert( ULONG nNodeIndex );
BOOL BreakPage( xub_StrLen& rOffs, ULONG nNodeIndex );
BOOL CheckInsertPage();
// Look for fresh text frames at this (new) page and set them to the right
// position, if they are in the fly cache.
void CheckFlyCache( SwPageFrm* pPage )
{ if( pImpl && nFlyIdx < pImpl->GetFlyCount() ) _CheckFlyCache( pPage ); }
// Look for this text frame and set it to the right position,
// if it's in the fly cache.
static BOOL CheckPageFlyCache( SwPageFrm* &rpPage, SwFlyFrm* pFly );
};
/*************************************************************************
* class SwLayCacheIoImpl
* contains the data structures that are required to read and write a
* layout cache.
*************************************************************************/
#define SW_LAYCACHE_IO_REC_PAGES 'p'
#define SW_LAYCACHE_IO_REC_PARA 'P'
#define SW_LAYCACHE_IO_REC_TABLE 'T'
#define SW_LAYCACHE_IO_REC_FLY 'F'
#define SW_LAYCACHE_IO_VERSION_MAJOR 1
#define SW_LAYCACHE_IO_VERSION_MINOR 1
class SwLayCacheIoImpl
{
SvBytes aRecTypes;
SvULongs aRecSizes;
SvStream *pStream;
ULONG nFlagRecEnd;
USHORT nMajorVersion;
USHORT nMinorVersion;
BOOL bWriteMode : 1;
BOOL bError : 1;
public:
SwLayCacheIoImpl( SvStream& rStrm, BOOL bWrtMd );
// Get input or output stream
SvStream& GetStream() const { return *pStream; }
// Open a record of type "nType"
BOOL OpenRec( BYTE nType );
// Close a record of type "nType". This skips any unread data that
// remains in the record.
BOOL CloseRec( BYTE nType );
// Return the number of bytes contained in the current record that
// haven't been read by now.
UINT32 BytesLeft();
// Return the current record's type
BYTE Peek();
// Skip the current record
void SkipRec();
// Open a flag record for reading. The uppermost four bits are flags,
// while the lowermost are the flag record's size. Flag records cannot
// be nested.
BYTE OpenFlagRec();
// Open flag record for writing;
void OpenFlagRec( BYTE nFlags, BYTE nLen );
// Close a flag record. Any bytes left are skipped.
void CloseFlagRec();
BOOL HasError() const { return bError; }
USHORT GetMajorVersion() const { return nMajorVersion; }
USHORT GetMinorVersion() const { return nMinorVersion; }
};
// Stored information about text frames:
class SwFlyCache : public SwRect // position and size
{
public:
ULONG nOrdNum; // Id to recognize text frames
USHORT nPageNum; // page number
SwFlyCache( USHORT nP, ULONG nO, long nXL, long nYL, long nWL, long nHL ) :
SwRect( nXL, nYL, nWL, nHL ), nOrdNum( nO ), nPageNum( nP ){}
};
#endif
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