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 <sot/storinfo.hxx>
  60 namespace OpenStormBento
  61 {
  62
  63 // String definitions
  64 const char gsBenMagicBytes[] = BEN_MAGIC_BYTES;
  65
  66 /**
  67 *   New bento container from file stream
  68 *   @param  pointer to length of bento file
  69 *   @param  pointer to pointer of Bento Container object
  70 *   @return error code
  71 */
  72 sal_uLong BenOpenContainer(LwpSvStream * pStream, pLtcBenContainer * ppContainer)
  73 {
  74     BenError Err;
  75
  76     *ppContainer = NULL;
  77
  78     if (NULL == pStream)
  79     {
  80         return BenErr_ContainerWithNoObjects;
  81     }
  82
  83     pLtcBenContainer pContainer = new LtcBenContainer(pStream);
  84     if ((Err = pContainer->Open()) != BenErr_OK) // delete two inputs
  85     {
  86         delete pContainer;
  87         return BenErr_InvalidTOC;
  88     }
  89
  90     *ppContainer = pContainer;
  91     return BenErr_OK;
  92 }
  93 BenError
  94 LtcBenContainer::Close()
  95 {
  96     return BenErr_OK;
  97 }
  98
  99 LtcBenContainer::~LtcBenContainer()
 100 {
 101     Close();
 102 }
 103
 104 BenError
 105 LtcBenContainer::Open() // delete two inputs
 106 {
 107     BenError Err;
 108     CBenTOCReader TOCReader(this);
 109     if ((Err = TOCReader.ReadLabelAndTOC()) != BenErr_OK)
 110     {
 111         return Err;
 112     }
 113     return BenErr_OK;
 114 }
 115
 116 BenError
 117 LtcBenContainer::RegisterPropertyName(const char * sPropertyName,
 118   pCBenPropertyName * ppPropertyName)
 119 {
 120     pCBenNamedObjectListElmt pPrevNamedObjectListElmt;
 121     pCBenNamedObject pNamedObject = FindNamedObject(&cNamedObjects,
 122       sPropertyName, &pPrevNamedObjectListElmt);
 123
 124     if (pNamedObject != NULL)
 125     {
 126         if (! pNamedObject->IsPropertyName())
 127             return BenErr_NameConflict;
 128         else *ppPropertyName = (pCBenPropertyName) pNamedObject;
 129     }
 130     else
 131     {
 132         pCBenIDListElmt pPrevObject;
 133         if (FindID(&cObjects, cNextAvailObjectID, &pPrevObject) != NULL)
 134             return BenErr_DuplicateObjectID;
 135
 136         *ppPropertyName = new CBenPropertyName(this, cNextAvailObjectID,
 137           (pCBenObject) pPrevObject, sPropertyName, pPrevNamedObjectListElmt);
 138         ++cNextAvailObjectID;
 139     }
 140
 141     return BenErr_OK;
 142 }
 143
 144 pCBenObject
 145 LtcBenContainer::GetNextObject(pCBenObject pCurrObject)
 146 {
 147     return (pCBenObject) cObjects.GetNextOrNULL(pCurrObject);
 148 }
 149
 150 pCBenObject
 151 LtcBenContainer::FindNextObjectWithProperty(pCBenObject pCurrObject,
 152   BenObjectID PropertyID)
 153 {
 154     while ((pCurrObject = GetNextObject(pCurrObject)) != NULL)
 155         if (pCurrObject->UseProperty(PropertyID) != NULL)
 156             return pCurrObject;
 157
 158     return NULL;
 159 }
 160
 161 /**
 162 *   Construction
 163 *   @param  Bento file stream pointer
 164 *   @return
 165 */
 166 LtcBenContainer::LtcBenContainer(LwpSvStream * pStream)
 167 {
 168     cpStream = pStream;
 169     pStream->Seek(STREAM_SEEK_TO_END);
 170     m_ulLength = pStream->Tell();
 171     pStream->Seek(STREAM_SEEK_TO_BEGIN);
 172 }
 173
 174 /**
 175 *   Read buffer fro bento file with specified buffer
 176 *   @date   07/05/2004
 177 *   @param  buffer pointer
 178 *   @param  buffer size
 179 *   @param  number of bytes read
 180 *   @return BenError
 181 */
 182 BenError LtcBenContainer::Read(BenDataPtr pBuffer, unsigned long MaxSize,
 183   unsigned long * pAmtRead)
 184 {
 185     *pAmtRead = cpStream->Read(pBuffer, MaxSize);
 186     return BenErr_OK;
 187 }
 188 /**
 189 *   Read buffer from bento file with specified size
 190 *   @date   07/05/2004
 191 *   @param  buffer pointer
 192 *   @param  number of bytes to be read
 193 *   @return BenError
 194 */
 195 BenError LtcBenContainer::ReadKnownSize(BenDataPtr pBuffer, unsigned long Amt)
 196 {
 197     sal_uLong ulLength;
 198     ulLength = cpStream->Read(pBuffer, Amt);
 199     if(ulLength == Amt)
 200     {
 201         return BenErr_OK;
 202     }
 203     return BenErr_ReadPastEndOfContainer;
 204 }
 205 /**
 206 *   Seek to position from the beginning of the bento file
 207 *   @date   07/05/2004
 208 *   @param  position in container file from beginning
 209 *   @return BenError
 210 */
 211 BenError LtcBenContainer::SeekToPosition(BenContainerPos Pos)
 212 {
 213     cpStream->Seek(Pos);
 214     return BenErr_OK;
 215 }
 216 /**
 217 *   Seek to position compare to end of bento file
 218 *   @date   07/05/2004
 219 *   @param  position in container file from end
 220 *   @return BenError
 221 */
 222 BenError LtcBenContainer::SeekFromEnd(long Offset)
 223 {
 224     cpStream->Seek(STREAM_SEEK_TO_END);
 225     cpStream->SeekRel(Offset);
 226
 227     return BenErr_OK;
 228 }
 229 /**
 230 *   Find the next value stream with property name
 231 *   @date   07/05/2004
 232 *   @param  string of property name
 233 *   @param  current value stream pointer with the property name
 234 *   @return next value stream pointer with the property names
 235 */
 236 LtcUtBenValueStream * LtcBenContainer::FindNextValueStreamWithPropertyName(const char * sPropertyName, LtcUtBenValueStream * pCurrentValueStream)
 237 {
 238     CBenPropertyName * pPropertyName;
 239     RegisterPropertyName(sPropertyName, &pPropertyName);        // Get property name object
 240
 241     if (NULL == pPropertyName)
 242         return NULL;                                            // Property not exist
 243
 244     // Get current object
 245     CBenObject * pObj = NULL;
 246     if (pCurrentValueStream != NULL)
 247     {
 248         pObj = pCurrentValueStream->GetValue()->GetProperty()->GetBenObject();
 249     }
 250
 251
 252     pObj =FindNextObjectWithProperty(pObj, pPropertyName->GetID()); // Get next object with same property name
 253     if (NULL == pObj)
 254         return NULL;
 255
 256     CBenValue * pValue;
 257     LtcUtBenValueStream * pValueStream;
 258
 259     pValue = pObj->UseValue(pPropertyName->GetID());
 260
 261     pValueStream = new LtcUtBenValueStream(pValue);
 262
 263     return pValueStream;
 264 }
 265
 266 /**
 267 *   Find the unique value stream with property name
 268 *   @date   07/05/2004
 269 *   @param  string of property name
 270 *   @return the only value stream pointer with the property names
 271 */
 272 LtcUtBenValueStream * LtcBenContainer::FindValueStreamWithPropertyName(const char * sPropertyName)
 273 {
 274     return FindNextValueStreamWithPropertyName(sPropertyName, NULL);
 275 }
 276 /**
 277 *   <description>
 278 *   @date   07/05/2004
 279 *   @param  pointer to length of bento file
 280 *   @return BenError
 281 */
 282 BenError LtcBenContainer::GetSize(sal_uLong * pLength)
 283 {
 284     *pLength = m_ulLength;
 285     return BenErr_OK;
 286 }
 287
 288 sal_uInt32 GetSvStreamSize(SvStream * pStream)
 289 {
 290     sal_uInt32 nCurPos = pStream->Tell();
 291     pStream->Seek(STREAM_SEEK_TO_END);
 292     sal_uInt32 ulLength = pStream->Tell();
 293     pStream->Seek(nCurPos);
 294
 295     return ulLength;
 296 }
 297
 298 /**
 299 *   Find hazily according to object ID
 300 *   @date   01/31/2005
 301 *   @param  pObjectname - format as "GrXX,XXXXXXXX" wherein XX is high part of object ID, and XXXXXXXX is low part
 302 *   @return the value stream pointers  with the property names
 303 */
 304 BenError LtcBenContainer::CreateGraphicStream(SvStream * &pStream, const char *pObjectName)
 305 {
 306     if (!pObjectName)
 307     {
 308         pStream = NULL;
 309         return BenErr_NamedObjectError;
 310     }
 311     // construct the string of property name
 312     char sSName[64]="";
 313     char sDName[64]="";
 314
 315     sprintf(sSName, "%s-S", pObjectName);
 316     sprintf(sDName, "%s-D", pObjectName);
 317
 318     /* traverse the found properties and construct the stream vectors */
 319     SvMemoryStream * pMemStream = NULL;
 320     // get S&D's stream and merge them together
 321     SvStream *pD = NULL, *pS = NULL;
 322
 323     pS = FindValueStreamWithPropertyName(sSName);
 324     pD = FindValueStreamWithPropertyName(sDName);
 325
 326
 327     sal_uInt32 nDLen = 0;
 328     if(pD)
 329     {
 330         nDLen = GetSvStreamSize(pD);
 331     }
 332     sal_uInt32 nLen = nDLen;
 333     if(pS)
 334     {
 335         nLen += GetSvStreamSize(pS) ;
 336     }
 337
 338     OSL_ENSURE(nLen > 0, "expected a non-0 length");
 339     // the 'D' stream is NULL or it has invalid length
 340     if (nLen <= 0)
 341     {
 342         pStream = NULL;
 343         return BenErr_NamedObjectError;
 344     }
 345
 346     char * pBuf = new char[nLen];
 347     assert(pBuf != NULL);
 348     char * pPointer = pBuf;
 349     if(pD)
 350     {
 351         pD->Read(pPointer, nDLen);
 352         delete pD;
 353     }
 354     pPointer += nDLen;
 355     if(pS)
 356     {
 357         pS->Read(pPointer, nLen - nDLen);
 358         delete pS;
 359     }
 360
 361     pMemStream = new SvMemoryStream(pBuf, nLen, STREAM_READ);
 362     assert(pMemStream != NULL);
 363
 364     pStream = pMemStream;
 365     return BenErr_OK;
 366 }
 367
 368 }// end namespace OpenStormBento
 369
 370 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */