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/*************************************************************************
*
* $RCSfile: layhelp.hxx,v $
*
* $Revision: 1.3 $
*
* last change: $Author: vg $ $Date: 2003-04-17 16:07:40 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
*
* - GNU Lesser General Public License Version 2.1
* - Sun Industry Standards Source License Version 1.1
*
* Sun Microsystems Inc., October, 2000
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2000 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library 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 for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*
* Sun Industry Standards Source License Version 1.1
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.1 (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.openoffice.org/license.html.
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
*
* Copyright: 2000 by Sun Microsystems, Inc.
*
* All Rights Reserved.
*
* Contributor(s): _______________________________________
*
*
************************************************************************/
#ifndef _LAYHELP_HXX
#define _LAYHELP_HXX
#ifndef _SVSTDARR_HXX
#define _SVSTDARR_USHORTS
#define _SVSTDARR_ULONGS
#define _SVSTDARR_BYTES
#define _SVSTDARR_XUB_STRLEN
#include <svtools/svstdarr.hxx>
#endif
#ifndef _SWRECT_HXX
#include <swrect.hxx>
#endif
class SwDoc;
class SwFrm;
class SwLayoutFrm;
class SwPageFrm;
class SwFlyFrm;
class SwSectionFrm;
class SwSectionNode;
class SwLayoutCache;
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 nX, long nY, long nW, long nH ) :
SwRect( nX, nY, nW, nH ), nOrdNum( nO ), nPageNum( nP ){}
};
#endif
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