sw/source/core/text/txtcache.cxx

   1 /*************************************************************************
   2  *
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * Copyright 2008 by Sun Microsystems, Inc.
   6  *
   7  * OpenOffice.org - a multi-platform office productivity suite
   8  *
   9  * $RCSfile: txtcache.cxx,v $
  10  * $Revision: 1.9 $
  11  *
  12  * This file is part of OpenOffice.org.
  13  *
  14  * OpenOffice.org is free software: you can redistribute it and/or modify
  15  * it under the terms of the GNU Lesser General Public License version 3
  16  * only, as published by the Free Software Foundation.
  17  *
  18  * OpenOffice.org is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU Lesser General Public License version 3 for more details
  22  * (a copy is included in the LICENSE file that accompanied this code).
  23  *
  24  * You should have received a copy of the GNU Lesser General Public License
  25  * version 3 along with OpenOffice.org.  If not, see
  26  * <http://www.openoffice.org/license.html>
  27  * for a copy of the LGPLv3 License.
  28  *
  29  ************************************************************************/
  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_sw.hxx"
  33
  34
  35
  36 #include "errhdl.hxx"
  37
  38 #include "txtcache.hxx"
  39 #include "txtfrm.hxx"
  40 #include "porlay.hxx"
  41
  42 /*************************************************************************
  43 |*
  44 |*      SwTxtLine::SwTxtLine(), ~SwTxtLine()
  45 |*
  46 |*      Ersterstellung          MA 16. Mar. 94
  47 |*      Letzte Aenderung        MA 16. Mar. 94
  48 |*
  49 |*************************************************************************/
  50
  51 SwTxtLine::SwTxtLine( SwTxtFrm *pFrm, SwParaPortion *pNew ) :
  52     SwCacheObj( (void*)pFrm ),
  53     pLine( pNew )
  54 {
  55 }
  56
  57 SwTxtLine::~SwTxtLine()
  58 {
  59     delete pLine;
  60 }
  61
  62 /*************************************************************************
  63 |*
  64 |*      SwTxtLineAccess::NewObj()
  65 |*
  66 |*      Ersterstellung          MA 16. Mar. 94
  67 |*      Letzte Aenderung        MA 16. Mar. 94
  68 |*
  69 |*************************************************************************/
  70
  71 SwCacheObj *SwTxtLineAccess::NewObj()
  72 {
  73     return new SwTxtLine( (SwTxtFrm*)pOwner );
  74 }
  75
  76 /*************************************************************************
  77 |*
  78 |*      SwTxtLineAccess::GetPara()
  79 |*
  80 |*      Ersterstellung          MA 16. Mar. 94
  81 |*      Letzte Aenderung        MA 16. Mar. 94
  82 |*
  83 |*************************************************************************/
  84
  85 SwParaPortion *SwTxtLineAccess::GetPara()
  86 {
  87     SwTxtLine *pRet;
  88     if ( pObj )
  89         pRet = (SwTxtLine*)pObj;
  90     else
  91     {
  92         pRet = (SwTxtLine*)Get();
  93         ((SwTxtFrm*)pOwner)->SetCacheIdx( pRet->GetCachePos() );
  94     }
  95     if ( !pRet->GetPara() )
  96         pRet->SetPara( new SwParaPortion );
  97     return pRet->GetPara();
  98 }
  99
 100
 101 /*************************************************************************
 102 |*
 103 |*      SwTxtLineAccess::SwTxtLineAccess()
 104 |*
 105 |*      Ersterstellung          MA 16. Mar. 94
 106 |*      Letzte Aenderung        MA 16. Mar. 94
 107 |*
 108 |*************************************************************************/
 109
 110 SwTxtLineAccess::SwTxtLineAccess( const SwTxtFrm *pOwn ) :
 111     SwCacheAccess( *SwTxtFrm::GetTxtCache(), pOwn, pOwn->GetCacheIdx() )
 112 {
 113 }
 114
 115 /*************************************************************************
 116 |*
 117 |*      SwTxtLineAccess::IsAvailable
 118 |*
 119 |*      Ersterstellung          MA 23. Mar. 94
 120 |*      Letzte Aenderung        MA 23. Mar. 94
 121 |*
 122 |*************************************************************************/
 123
 124 sal_Bool SwTxtLineAccess::IsAvailable() const
 125 {
 126     if ( pObj )
 127         return ((SwTxtLine*)pObj)->GetPara() != 0;
 128     return sal_False;
 129 }
 130
 131 /*************************************************************************
 132 |*
 133 |*      SwTxtFrm::HasPara()
 134 |*
 135 |*      Ersterstellung          MA 16. Mar. 94
 136 |*      Letzte Aenderung        MA 22. Aug. 94
 137 |*
 138 |*************************************************************************/
 139
 140 sal_Bool SwTxtFrm::_HasPara() const
 141 {
 142     SwTxtLine *pTxtLine = (SwTxtLine*)SwTxtFrm::GetTxtCache()->
 143                                             Get( this, GetCacheIdx(), sal_False );
 144     if ( pTxtLine )
 145     {
 146         if ( pTxtLine->GetPara() )
 147             return sal_True;
 148     }
 149     else
 150         ((SwTxtFrm*)this)->nCacheIdx = MSHRT_MAX;
 151
 152     return sal_False;
 153 }
 154
 155 /*************************************************************************
 156 |*
 157 |*      SwTxtFrm::GetPara()
 158 |*
 159 |*      Ersterstellung          MA 16. Mar. 94
 160 |*      Letzte Aenderung        MA 22. Aug. 94
 161 |*
 162 |*************************************************************************/
 163
 164 SwParaPortion *SwTxtFrm::GetPara()
 165 {
 166     if ( GetCacheIdx() != MSHRT_MAX )
 167     {   SwTxtLine *pLine = (SwTxtLine*)SwTxtFrm::GetTxtCache()->
 168                                         Get( this, GetCacheIdx(), sal_False );
 169         if ( pLine )
 170             return pLine->GetPara();
 171         else
 172             nCacheIdx = MSHRT_MAX;
 173     }
 174     return 0;
 175 }
 176
 177
 178 /*************************************************************************
 179 |*
 180 |*      SwTxtFrm::ClearPara()
 181 |*
 182 |*      Ersterstellung          MA 16. Mar. 94
 183 |*      Letzte Aenderung        MA 22. Aug. 94
 184 |*
 185 |*************************************************************************/
 186
 187 void SwTxtFrm::ClearPara()
 188 {
 189     ASSERT( !IsLocked(), "+SwTxtFrm::ClearPara: this is locked." );
 190     if ( !IsLocked() && GetCacheIdx() != MSHRT_MAX )
 191     {
 192         SwTxtLine *pTxtLine = (SwTxtLine*)SwTxtFrm::GetTxtCache()->
 193                                         Get( this, GetCacheIdx(), sal_False );
 194         if ( pTxtLine )
 195         {
 196             delete pTxtLine->GetPara();
 197             pTxtLine->SetPara( 0 );
 198         }
 199         else
 200             nCacheIdx = MSHRT_MAX;
 201     }
 202 }
 203
 204 /*************************************************************************
 205 |*
 206 |*      SwTxtFrm::SetPara()
 207 |*
 208 |*      Ersterstellung          MA 16. Mar. 94
 209 |*      Letzte Aenderung        MA 22. Aug. 94
 210 |*
 211 |*************************************************************************/
 212
 213 void SwTxtFrm::SetPara( SwParaPortion *pNew, sal_Bool bDelete )
 214 {
 215     if ( GetCacheIdx() != MSHRT_MAX )
 216     {
 217         //Nur die Information Auswechseln, das CacheObj bleibt stehen.
 218         SwTxtLine *pTxtLine = (SwTxtLine*)SwTxtFrm::GetTxtCache()->
 219                                         Get( this, GetCacheIdx(), sal_False );
 220         if ( pTxtLine )
 221         {
 222             if( bDelete )
 223                 delete pTxtLine->GetPara();
 224             pTxtLine->SetPara( pNew );
 225         }
 226         else
 227         {
 228             ASSERT( !pNew, "+SetPara: Losing SwParaPortion" );
 229             nCacheIdx = MSHRT_MAX;
 230         }
 231     }
 232     else if ( pNew )
 233     {   //Einen neuen einfuegen.
 234         SwTxtLine *pTxtLine = new SwTxtLine( this, pNew );
 235         if ( SwTxtFrm::GetTxtCache()->Insert( pTxtLine ) )
 236             nCacheIdx = pTxtLine->GetCachePos();
 237         else
 238         {
 239             ASSERT( sal_False, "+SetPara: InsertCache failed." );
 240         }
 241     }
 242 }
 243
 244