lotuswordpro/source/filter/bencont.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*************************************************************************
   3  *
   4  *  The Contents of this file are made available subject to the terms of
   5  *  either of the following licenses
   6  *
   7  *         - GNU Lesser General Public License Version 2.1
   8  *         - Sun Industry Standards Source License Version 1.1
   9  *
  10  *  Sun Microsystems Inc., October, 2000
  11  *
  12  *  GNU Lesser General Public License Version 2.1
  13  *  =============================================
  14  *  Copyright 2000 by Sun Microsystems, Inc.
  15  *  901 San Antonio Road, Palo Alto, CA 94303, USA
  16  *
  17  *  This library is free software; you can redistribute it and/or
  18  *  modify it under the terms of the GNU Lesser General Public
  19  *  License version 2.1, as published by the Free Software Foundation.
  20  *
  21  *  This library is distributed in the hope that it will be useful,
  22  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  23  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  24  *  Lesser General Public License for more details.
  25  *
  26  *  You should have received a copy of the GNU Lesser General Public
  27  *  License along with this library; if not, write to the Free Software
  28  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  29  *  MA  02111-1307  USA
  30  *
  31  *
  32  *  Sun Industry Standards Source License Version 1.1
  33  *  =================================================
  34  *  The contents of this file are subject to the Sun Industry Standards
  35  *  Source License Version 1.1 (the "License"); You may not use this file
  36  *  except in compliance with the License. You may obtain a copy of the
  37  *  License at http://www.openoffice.org/license.html.
  38  *
  39  *  Software provided under this License is provided on an "AS IS" basis,
  40  *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
  41  *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
  42  *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
  43  *  See the License for the specific provisions governing your rights and
  44  *  obligations concerning the Software.
  45  *
  46  *  The Initial Developer of the Original Code is: IBM Corporation
  47  *
  48  *  Copyright: 2008 by IBM Corporation
  49  *
  50  *  All Rights Reserved.
  51  *
  52  *  Contributor(s): _______________________________________
  53  *
  54  *
  55  ************************************************************************/
  56 #include "first.hxx"
  57 #include "assert.h"
  58 #include <stdio.h>
  59 #include <osl/diagnose.h>
  60 #include <sot/storinfo.hxx>
  61 namespace OpenStormBento
  62 {
  63
  64 // String definitions
  65 const char gsBenMagicBytes[] = BEN_MAGIC_BYTES;
  66
  67 /**
  68 *   New bento container from file stream
  69 *   @param  pointer to length of bento file
  70 *   @param  pointer to pointer of Bento Container object
  71 *   @return error code
  72 */
  73 sal_uLong BenOpenContainer(LwpSvStream * pStream, pLtcBenContainer * ppContainer)
  74 {
  75     BenError Err;
  76
  77     *ppContainer = NULL;
  78
  79     if (NULL == pStream)
  80     {
  81         return BenErr_ContainerWithNoObjects;
  82     }
  83
  84     pLtcBenContainer pContainer = new LtcBenContainer(pStream);
  85     if ((Err = pContainer->Open()) != BenErr_OK) // delete two inputs
  86     {
  87         delete pContainer;
  88         return BenErr_InvalidTOC;
  89     }
  90
  91     *ppContainer = pContainer;
  92     return BenErr_OK;
  93 }
  94
  95 LtcBenContainer::~LtcBenContainer()
  96 {
  97 }
  98
  99 BenError
 100 LtcBenContainer::Open() // delete two inputs
 101 {
 102     BenError Err;
 103     CBenTOCReader TOCReader(this);
 104     if ((Err = TOCReader.ReadLabelAndTOC()) != BenErr_OK)
 105     {
 106         return Err;
 107     }
 108     return BenErr_OK;
 109 }
 110
 111 BenError
 112 LtcBenContainer::RegisterPropertyName(const char * sPropertyName,
 113   pCBenPropertyName * ppPropertyName)
 114 {
 115     pCUtListElmt pPrevNamedObjectListElmt;
 116     pCBenNamedObject pNamedObject = FindNamedObject(&cNamedObjects,
 117       sPropertyName, &pPrevNamedObjectListElmt);
 118
 119     if (pNamedObject != NULL)
 120     {
 121         if (! pNamedObject->IsPropertyName())
 122             return BenErr_NameConflict;
 123         else *ppPropertyName = static_cast<pCBenPropertyName>(pNamedObject);
 124     }
 125     else
 126     {
 127         pCUtListElmt pPrevObject;
 128         if (FindID(&cObjects, cNextAvailObjectID, &pPrevObject) != NULL)
 129             return BenErr_DuplicateObjectID;
 130
 131         *ppPropertyName = new CBenPropertyName(this, cNextAvailObjectID,
 132           static_cast<pCBenObject>(pPrevObject), sPropertyName, pPrevNamedObjectListElmt);
 133         ++cNextAvailObjectID;
 134     }
 135
 136     return BenErr_OK;
 137 }
 138
 139 pCBenObject
 140 LtcBenContainer::GetNextObject(pCBenObject pCurrObject)
 141 {
 142     return static_cast<pCBenObject>(cObjects.GetNextOrNULL(pCurrObject));
 143 }
 144
 145 pCBenObject
 146 LtcBenContainer::FindNextObjectWithProperty(pCBenObject pCurrObject,
 147   BenObjectID PropertyID)
 148 {
 149     while ((pCurrObject = GetNextObject(pCurrObject)) != NULL)
 150         if (pCurrObject->UseProperty(PropertyID) != NULL)
 151             return pCurrObject;
 152
 153     return NULL;
 154 }
 155
 156 /**
 157 *   Construction
 158 *   @param  Bento file stream pointer
 159 *   @return
 160 */
 161 LtcBenContainer::LtcBenContainer(LwpSvStream * pStream)
 162     : cNextAvailObjectID(0)
 163 {
 164     cpStream = pStream;
 165     pStream->Seek(STREAM_SEEK_TO_END);
 166     m_ulLength = pStream->Tell();
 167     pStream->Seek(STREAM_SEEK_TO_BEGIN);
 168 }
 169
 170 /**
 171 *   Read buffer fro bento file with specified buffer
 172 *   @date   07/05/2004
 173 *   @param  buffer pointer
 174 *   @param  buffer size
 175 *   @param  number of bytes read
 176 *   @return BenError
 177 */
 178 BenError LtcBenContainer::Read(BenDataPtr pBuffer, unsigned long MaxSize,
 179   unsigned long * pAmtRead)
 180 {
 181     *pAmtRead = cpStream->Read(pBuffer, MaxSize);
 182     return BenErr_OK;
 183 }
 184 /**
 185 *   Read buffer from bento file with specified size
 186 *   @date   07/05/2004
 187 *   @param  buffer pointer
 188 *   @param  number of bytes to be read
 189 *   @return BenError
 190 */
 191 BenError LtcBenContainer::ReadKnownSize(BenDataPtr pBuffer, unsigned long Amt)
 192 {
 193     sal_uLong ulLength;
 194     ulLength = cpStream->Read(pBuffer, Amt);
 195     if(ulLength == Amt)
 196     {
 197         return BenErr_OK;
 198     }
 199     return BenErr_ReadPastEndOfContainer;
 200 }
 201 /**
 202 *   Seek to position from the beginning of the bento file
 203 *   @date   07/05/2004
 204 *   @param  position in container file from beginning
 205 *   @return BenError
 206 */
 207 BenError LtcBenContainer::SeekToPosition(BenContainerPos Pos)
 208 {
 209     cpStream->Seek(Pos);
 210     return BenErr_OK;
 211 }
 212 /**
 213 *   Seek to position compare to end of bento file
 214 *   @date   07/05/2004
 215 *   @param  position in container file from end
 216 *   @return BenError
 217 */
 218 BenError LtcBenContainer::SeekFromEnd(long Offset)
 219 {
 220     cpStream->Seek(STREAM_SEEK_TO_END);
 221     cpStream->SeekRel(Offset);
 222
 223     return BenErr_OK;
 224 }
 225 /**
 226 *   Find the next value stream with property name
 227 *   @date   07/05/2004
 228 *   @param  string of property name
 229 *   @param  current value stream pointer with the property name
 230 *   @return next value stream pointer with the property names
 231 */
 232 LtcUtBenValueStream * LtcBenContainer::FindNextValueStreamWithPropertyName(const char * sPropertyName, LtcUtBenValueStream * pCurrentValueStream)
 233 {
 234     CBenPropertyName * pPropertyName;
 235     RegisterPropertyName(sPropertyName, &pPropertyName);        // Get property name object
 236
 237     if (NULL == pPropertyName)
 238         return NULL;                                            // Property not exist
 239
 240     // Get current object
 241     CBenObject * pObj = NULL;
 242     if (pCurrentValueStream != NULL)
 243     {
 244         pObj = pCurrentValueStream->GetValue()->GetProperty()->GetBenObject();
 245     }
 246
 247     pObj =FindNextObjectWithProperty(pObj, pPropertyName->GetID()); // Get next object with same property name
 248     if (NULL == pObj)
 249         return NULL;
 250
 251     CBenValue * pValue;
 252     LtcUtBenValueStream * pValueStream;
 253
 254     pValue = pObj->UseValue(pPropertyName->GetID());
 255
 256     pValueStream = new LtcUtBenValueStream(pValue);
 257
 258     return pValueStream;
 259 }
 260
 261 /**
 262 *   Find the unique value stream with property name
 263 *   @date   07/05/2004
 264 *   @param  string of property name
 265 *   @return the only value stream pointer with the property names
 266 */
 267 LtcUtBenValueStream * LtcBenContainer::FindValueStreamWithPropertyName(const char * sPropertyName)
 268 {
 269     return FindNextValueStreamWithPropertyName(sPropertyName, NULL);
 270 }
 271 /**
 272 *   <description>
 273 *   @date   07/05/2004
 274 *   @param  pointer to length of bento file
 275 *   @return BenError
 276 */
 277 BenError LtcBenContainer::GetSize(sal_uLong * pLength)
 278 {
 279     *pLength = m_ulLength;
 280     return BenErr_OK;
 281 }
 282
 283 sal_uInt32 GetSvStreamSize(SvStream * pStream)
 284 {
 285     sal_uInt32 nCurPos = pStream->Tell();
 286     pStream->Seek(STREAM_SEEK_TO_END);
 287     sal_uInt32 ulLength = pStream->Tell();
 288     pStream->Seek(nCurPos);
 289
 290     return ulLength;
 291 }
 292
 293 /**
 294 *   Find hazily according to object ID
 295 *   @date   01/31/2005
 296 *   @param  pObjectname - format as "GrXX,XXXXXXXX" wherein XX is high part of object ID, and XXXXXXXX is low part
 297 *   @return the value stream pointers  with the property names
 298 */
 299 BenError LtcBenContainer::CreateGraphicStream(SvStream * &pStream, const char *pObjectName)
 300 {
 301     if (!pObjectName)
 302     {
 303         pStream = NULL;
 304         return BenErr_NamedObjectError;
 305     }
 306     // construct the string of property name
 307     char sSName[64]="";
 308     char sDName[64]="";
 309
 310     sprintf(sSName, "%s-S", pObjectName);
 311     sprintf(sDName, "%s-D", pObjectName);
 312
 313     /* traverse the found properties and construct the stream vectors */
 314     SvMemoryStream * pMemStream = NULL;
 315     // get S&D's stream and merge them together
 316     SvStream *pD = NULL, *pS = NULL;
 317
 318     pS = FindValueStreamWithPropertyName(sSName);
 319     pD = FindValueStreamWithPropertyName(sDName);
 320
 321     sal_uInt32 nDLen = 0;
 322     if(pD)
 323     {
 324         nDLen = GetSvStreamSize(pD);
 325     }
 326     sal_uInt32 nLen = nDLen;
 327     if(pS)
 328     {
 329         nLen += GetSvStreamSize(pS) ;
 330     }
 331
 332     OSL_ENSURE(nLen > 0, "expected a non-0 length");
 333     // the 'D' stream is NULL or it has invalid length
 334     if (nLen <= 0)
 335     {
 336         pStream = NULL;
 337         return BenErr_NamedObjectError;
 338     }
 339
 340     char * pBuf = new char[nLen];
 341     assert(pBuf != NULL);
 342     char * pPointer = pBuf;
 343     if(pD)
 344     {
 345         pD->Read(pPointer, nDLen);
 346         delete pD;
 347     }
 348     pPointer += nDLen;
 349     if(pS)
 350     {
 351         pS->Read(pPointer, nLen - nDLen);
 352         delete pS;
 353     }
 354
 355     pMemStream = new SvMemoryStream(pBuf, nLen, StreamMode::READ);
 356     assert(pMemStream != NULL);
 357
 358     pStream = pMemStream;
 359     return BenErr_OK;
 360 }
 361
 362 }// end namespace OpenStormBento
 363
 364 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */