/********************************************************************** * $Id: mitab_mapobjectblock.cpp,v 1.15 2005/10/06 19:15:31 dmorissette Exp $ * * Name: mitab_mapobjectblock.cpp * Project: MapInfo TAB Read/Write library * Language: C++ * Purpose: Implementation of the TABMAPObjectBlock class used to handle * reading/writing of the .MAP files' object data blocks * Author: Daniel Morissette, dmorissette@dmsolutions.ca * ********************************************************************** * Copyright (c) 1999-2001, Daniel Morissette * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. ********************************************************************** * * $Log: mitab_mapobjectblock.cpp,v $ * Revision 1.15 2005/10/06 19:15:31 dmorissette * Collections: added support for reading/writing pen/brush/symbol ids and * for writing collection objects to .TAB/.MAP (bug 1126) * * Revision 1.14 2005/10/04 15:44:31 dmorissette * First round of support for Collection objects. Currently supports reading * from .TAB/.MAP and writing to .MIF. Still lacks symbol support and write * support. (Based in part on patch and docs from Jim Hope, bug 1126) * * Revision 1.13 2004/06/30 20:29:04 dmorissette * Fixed refs to old address danmo@videotron.ca * * Revision 1.12 2002/03/26 01:48:40 daniel * Added Multipoint object type (V650) * * Revision 1.11 2001/12/05 22:40:27 daniel * Init MBR to 0 in TABMAPObjHdr and modif. SetMBR() to validate min/max * * Revision 1.10 2001/11/19 15:07:06 daniel * Handle the case of TAB_GEOM_NONE with the new TABMAPObjHdr classes. * * Revision 1.9 2001/11/17 21:54:06 daniel * Made several changes in order to support writing objects in 16 bits * coordinate format. New TABMAPObjHdr-derived classes are used to hold * object info in mem until block is full. * * Revision 1.8 2001/09/19 19:19:11 warmerda * modified AdvanceToNextObject() to skip deleted objects * * Revision 1.7 2001/09/14 03:23:55 warmerda * Substantial upgrade to support spatial queries using spatial indexes * * Revision 1.6 2000/01/15 22:30:44 daniel * Switch to MIT/X-Consortium OpenSource license * * Revision 1.5 1999/10/19 06:07:29 daniel * Removed obsolete comment. * * Revision 1.4 1999/10/18 15:41:00 daniel * Added WriteIntMBRCoord() * * Revision 1.3 1999/09/29 04:23:06 daniel * Fixed typo in GetMBR() * * Revision 1.2 1999/09/26 14:59:37 daniel * Implemented write support * * Revision 1.1 1999/07/12 04:18:25 daniel * Initial checkin * **********************************************************************/ #include "mitab.h" /*===================================================================== * class TABMAPObjectBlock *====================================================================*/ #define MAP_OBJECT_HEADER_SIZE 20 /********************************************************************** * TABMAPObjectBlock::TABMAPObjectBlock() * * Constructor. **********************************************************************/ TABMAPObjectBlock::TABMAPObjectBlock(TABAccess eAccessMode /*= TABRead*/): TABRawBinBlock(eAccessMode, TRUE) { m_papoObjHdr = NULL; m_numObjects = 0; } /********************************************************************** * TABMAPObjectBlock::~TABMAPObjectBlock() * * Destructor. **********************************************************************/ TABMAPObjectBlock::~TABMAPObjectBlock() { m_nMinX = 1000000000; m_nMinY = 1000000000; m_nMaxX = -1000000000; m_nMaxY = -1000000000; FreeObjectArray(); } /********************************************************************** * TABMAPObjectBlock::FreeObjectArray() **********************************************************************/ void TABMAPObjectBlock::FreeObjectArray() { if (m_numObjects > 0 && m_papoObjHdr) { for(int i=0; iGetMapObjectSize( m_nCurObjectType ); } if( m_nCurObjectOffset + 5 < m_numDataBytes + 20 ) { GotoByteInBlock( m_nCurObjectOffset ); m_nCurObjectType = ReadByte(); } else { m_nCurObjectType = -1; } if( m_nCurObjectType <= 0 || m_nCurObjectType >= 0x80 ) { m_nCurObjectType = -1; m_nCurObjectId = -1; m_nCurObjectOffset = -1; } else { m_nCurObjectId = ReadInt32(); // Is this object marked as deleted? If so, skip it. // I check both the top bits but I have only seen this occur // with the second highest bit set (ie. in usa/states.tab). NFW. if( (((GUInt32)m_nCurObjectId) & (GUInt32) 0xC0000000) != 0 ) { m_nCurObjectId = AdvanceToNextObject( poHeader ); } } return m_nCurObjectId; } /********************************************************************** * TABMAPObjectBlock::CommitToFile() * * Commit the current state of the binary block to the file to which * it has been previously attached. * * This method makes sure all values are properly set in the map object * block header and then calls TABRawBinBlock::CommitToFile() to do * the actual writing to disk. * * Returns 0 if succesful or -1 if an error happened, in which case * CPLError() will have been called. **********************************************************************/ int TABMAPObjectBlock::CommitToFile() { int nStatus = 0; if ( m_pabyBuf == NULL ) { CPLError(CE_Failure, CPLE_AssertionFailed, "TABMAPObjectBlock::CommitToFile(): Block has not been initialized yet!"); return -1; } /*----------------------------------------------------------------- * Make sure 20 bytes block header is up to date. *----------------------------------------------------------------*/ GotoByteInBlock(0x000); WriteInt16(TABMAP_OBJECT_BLOCK); // Block type code WriteInt16(m_nSizeUsed - MAP_OBJECT_HEADER_SIZE); // num. bytes used WriteInt32(m_nCenterX); WriteInt32(m_nCenterY); WriteInt32(m_nFirstCoordBlock); WriteInt32(m_nLastCoordBlock); nStatus = CPLGetLastErrorNo(); /*----------------------------------------------------------------- * Write all the individual objects *----------------------------------------------------------------*/ for(int i=0; iWriteObj(this); } /*----------------------------------------------------------------- * OK, call the base class to write the block to disk. *----------------------------------------------------------------*/ if (nStatus == 0) nStatus = TABRawBinBlock::CommitToFile(); return nStatus; } /********************************************************************** * TABMAPObjectBlock::InitNewBlock() * * Initialize a newly created block so that it knows to which file it * is attached, its block size, etc . and then perform any specific * initialization for this block type, including writing a default * block header, etc. and leave the block ready to receive data. * * This is an alternative to calling ReadFromFile() or InitBlockFromData() * that puts the block in a stable state without loading any initial * data in it. * * Returns 0 if succesful or -1 if an error happened, in which case * CPLError() will have been called. **********************************************************************/ int TABMAPObjectBlock::InitNewBlock(FILE *fpSrc, int nBlockSize, int nFileOffset /* = 0*/) { /*----------------------------------------------------------------- * Start with the default initialisation *----------------------------------------------------------------*/ if ( TABRawBinBlock::InitNewBlock(fpSrc, nBlockSize, nFileOffset) != 0) return -1; /*----------------------------------------------------------------- * And then set default values for the block header. *----------------------------------------------------------------*/ // Set block MBR to extreme values to force an update on the first // UpdateMBR() call. m_nMinX = 1000000000; m_nMaxX = -1000000000; m_nMinY = 1000000000; m_nMaxY = -1000000000; // Make sure there is no object header left from last time. FreeObjectArray(); m_numDataBytes = 0; /* Data size excluding header */ m_nCenterX = m_nCenterY = 0; m_nFirstCoordBlock = 0; m_nLastCoordBlock = 0; if (m_eAccess != TABRead) { GotoByteInBlock(0x000); WriteInt16(TABMAP_OBJECT_BLOCK);// Block type code WriteInt16(0); // num. bytes used, excluding header // MBR center here... will be written in CommitToFile() WriteInt32(0); WriteInt32(0); // First/last coord block ref... will be written in CommitToFile() WriteInt32(0); WriteInt32(0); } if (CPLGetLastErrorNo() != 0) return -1; return 0; } /********************************************************************** * TABMAPObjectBlock::ReadCoord() * * Read the next pair of integer coordinates value from the block, and * apply the translation relative to to the center of the data block * if bCompressed=TRUE. * * This means that the returned coordinates are always absolute integer * coordinates, even when the source coords are in compressed form. * * Returns 0 if succesful or -1 if an error happened, in which case * CPLError() will have been called. **********************************************************************/ int TABMAPObjectBlock::ReadIntCoord(GBool bCompressed, GInt32 &nX, GInt32 &nY) { if (bCompressed) { nX = m_nCenterX + ReadInt16(); nY = m_nCenterY + ReadInt16(); } else { nX = ReadInt32(); nY = ReadInt32(); } if (CPLGetLastErrorNo() != 0) return -1; return 0; } /********************************************************************** * TABMAPObjectBlock::WriteIntCoord() * * Write a pair of integer coordinates values to the current position in the * the block. If bCompr=TRUE then the coordinates are written relative to * the object block center... otherwise they're written as 32 bits int. * * This function does not maintain the block's MBR and center... it is * assumed to have been set before the first call to WriteIntCoord() * * Returns 0 if succesful or -1 if an error happened, in which case * CPLError() will have been called. **********************************************************************/ int TABMAPObjectBlock::WriteIntCoord(GInt32 nX, GInt32 nY, GBool bCompressed /*=FALSE*/) { /*----------------------------------------------------------------- * Write coords to the file. *----------------------------------------------------------------*/ if ((!bCompressed && (WriteInt32(nX) != 0 || WriteInt32(nY) != 0 ) ) || (bCompressed && (WriteInt16(nX - m_nCenterX) != 0 || WriteInt16(nY - m_nCenterY) != 0) ) ) { return -1; } return 0; } /********************************************************************** * TABMAPObjectBlock::WriteIntMBRCoord() * * Write 2 pairs of integer coordinates values to the current position * in the the block after making sure that min values are smaller than * max values. Use this function to write MBR coordinates for an object. * * If bCompr=TRUE then the coordinates are written relative to * the object block center... otherwise they're written as 32 bits int. * * This function does not maintain the block's MBR and center... it is * assumed to have been set before the first call to WriteIntCoord() * * Returns 0 if succesful or -1 if an error happened, in which case * CPLError() will have been called. **********************************************************************/ int TABMAPObjectBlock::WriteIntMBRCoord(GInt32 nXMin, GInt32 nYMin, GInt32 nXMax, GInt32 nYMax, GBool bCompressed /*=FALSE*/) { if (WriteIntCoord(MIN(nXMin, nXMax), MIN(nYMin, nYMax), bCompressed) != 0 || WriteIntCoord(MAX(nXMin, nXMax), MAX(nYMin, nYMax), bCompressed) != 0 ) { return -1; } return 0; } /********************************************************************** * TABMAPObjectBlock::UpdateMBR() * * Update the block's MBR and center. * * Returns 0 if succesful or -1 if an error happened, in which case * CPLError() will have been called. **********************************************************************/ int TABMAPObjectBlock::UpdateMBR(GInt32 nX, GInt32 nY) { if (nX < m_nMinX) m_nMinX = nX; if (nX > m_nMaxX) m_nMaxX = nX; if (nY < m_nMinY) m_nMinY = nY; if (nY > m_nMaxY) m_nMaxY = nY; m_nCenterX = (m_nMinX + m_nMaxX) /2; m_nCenterY = (m_nMinY + m_nMaxY) /2; return 0; } /********************************************************************** * TABMAPObjectBlock::AddCoordBlockRef() * * Update the first/last coord block fields in this object to contain * the specified block address. **********************************************************************/ void TABMAPObjectBlock::AddCoordBlockRef(GInt32 nNewBlockAddress) { /*----------------------------------------------------------------- * Normally, new blocks are added to the end of the list, except * the first one which is the beginning and the end of the list at * the same time. *----------------------------------------------------------------*/ if (m_nFirstCoordBlock == 0) m_nFirstCoordBlock = nNewBlockAddress; m_nLastCoordBlock = nNewBlockAddress; } /********************************************************************** * TABMAPObjectBlock::GetMBR() * * Return the MBR for the current block. **********************************************************************/ void TABMAPObjectBlock::GetMBR(GInt32 &nXMin, GInt32 &nYMin, GInt32 &nXMax, GInt32 &nYMax) { nXMin = m_nMinX; nYMin = m_nMinY; nXMax = m_nMaxX; nYMax = m_nMaxY; } /********************************************************************** * TABMAPObjectBlock::AddObject() * * Add an object to be eventually writtent to this object. The poObjHdr * becomes owned by the TABMAPObjectBlock object and will be destroyed * once we're done with it. * * In write mode, an array of TABMAPObjHdr objects is maintained in memory * until the object is full, at which time the block center is recomputed * and all objects are written to the block. **********************************************************************/ int TABMAPObjectBlock::AddObject(TABMAPObjHdr *poObjHdr) { // We do not store NONE objects if (poObjHdr->m_nType == TAB_GEOM_NONE) { delete poObjHdr; return 0; } if (m_papoObjHdr == NULL || m_numObjects%10 == 0) { // Realloc the array... by steps of 10 m_papoObjHdr = (TABMAPObjHdr**)CPLRealloc(m_papoObjHdr, (m_numObjects+10)* sizeof(TABMAPObjHdr*)); } m_papoObjHdr[m_numObjects++] = poObjHdr; // Maintain MBR of this object block. UpdateMBR(poObjHdr->m_nMinX, poObjHdr->m_nMinY); UpdateMBR(poObjHdr->m_nMaxX, poObjHdr->m_nMaxY); return 0; } /********************************************************************** * TABMAPObjectBlock::Dump() * * Dump block contents... available only in DEBUG mode. **********************************************************************/ #ifdef DEBUG void TABMAPObjectBlock::Dump(FILE *fpOut, GBool bDetails) { if (fpOut == NULL) fpOut = stdout; fprintf(fpOut, "----- TABMAPObjectBlock::Dump() -----\n"); if (m_pabyBuf == NULL) { fprintf(fpOut, "Block has not been initialized yet."); } else { fprintf(fpOut,"Object Data Block (type %d) at offset %d.\n", m_nBlockType, m_nFileOffset); fprintf(fpOut," m_numDataBytes = %d\n", m_numDataBytes); fprintf(fpOut," m_nCenterX = %d\n", m_nCenterX); fprintf(fpOut," m_nCenterY = %d\n", m_nCenterY); fprintf(fpOut," m_nFirstCoordBlock = %d\n", m_nFirstCoordBlock); fprintf(fpOut," m_nLastCoordBlock = %d\n", m_nLastCoordBlock); } if (bDetails) { /* We need the mapfile's header block */ TABRawBinBlock *poBlock; TABMAPHeaderBlock *poHeader; poBlock = TABCreateMAPBlockFromFile(m_fp, 0, 512); if (poBlock==NULL || poBlock->GetBlockClass() != TABMAP_HEADER_BLOCK) { CPLError(CE_Failure, CPLE_AssertionFailed, "Failed reading header block."); return; } poHeader = (TABMAPHeaderBlock *)poBlock; while(AdvanceToNextObject(poHeader) != -1) { fprintf(fpOut, " object id=%d, type=%d, offset=%d (%d), size=%d \n", m_nCurObjectId, m_nCurObjectType, m_nCurObjectOffset, m_nFileOffset + m_nCurObjectOffset, poHeader->GetMapObjectSize( m_nCurObjectType ) ); } delete poHeader; } fflush(fpOut); } #endif // DEBUG /*===================================================================== * class TABMAPObjHdr and family *====================================================================*/ /********************************************************************** * class TABMAPObjHdr * * Virtual base class... contains static methods used to allocate instance * of the derived classes. * * __TODO__ * - Why are most of the ReadObj() methods not implemented??? * -> Because it's faster to not parse the whole object block all the time * but instead parse one object at a time in read mode... so there is * no real use for this class in read mode UNTIL we support random * update. * At this point, only TABRegion and TABPolyline make use of the * ReadObj() methods. **********************************************************************/ /********************************************************************** * TABMAPObjHdr::NewObj() * * Alloc a new object of specified type or NULL for NONE types or if type * is not supported. **********************************************************************/ TABMAPObjHdr *TABMAPObjHdr::NewObj(GByte nNewObjType, GInt32 nId /*=0*/) { TABMAPObjHdr *poObj = NULL; switch(nNewObjType) { case TAB_GEOM_NONE: poObj = new TABMAPObjNone; break; case TAB_GEOM_SYMBOL_C: case TAB_GEOM_SYMBOL: poObj = new TABMAPObjPoint; break; case TAB_GEOM_FONTSYMBOL_C: case TAB_GEOM_FONTSYMBOL: poObj = new TABMAPObjFontPoint; break; case TAB_GEOM_CUSTOMSYMBOL_C: case TAB_GEOM_CUSTOMSYMBOL: poObj = new TABMAPObjCustomPoint; break; case TAB_GEOM_LINE_C: case TAB_GEOM_LINE: poObj = new TABMAPObjLine; break; case TAB_GEOM_PLINE_C: case TAB_GEOM_PLINE: case TAB_GEOM_REGION_C: case TAB_GEOM_REGION: case TAB_GEOM_MULTIPLINE_C: case TAB_GEOM_MULTIPLINE: case TAB_GEOM_V450_REGION_C: case TAB_GEOM_V450_REGION: case TAB_GEOM_V450_MULTIPLINE_C: case TAB_GEOM_V450_MULTIPLINE: poObj = new TABMAPObjPLine; break; case TAB_GEOM_ARC_C: case TAB_GEOM_ARC: poObj = new TABMAPObjArc; break; case TAB_GEOM_RECT_C: case TAB_GEOM_RECT: case TAB_GEOM_ROUNDRECT_C: case TAB_GEOM_ROUNDRECT: case TAB_GEOM_ELLIPSE_C: case TAB_GEOM_ELLIPSE: poObj = new TABMAPObjRectEllipse; break; case TAB_GEOM_TEXT_C: case TAB_GEOM_TEXT: poObj = new TABMAPObjText; break; case TAB_GEOM_MULTIPOINT_C: case TAB_GEOM_MULTIPOINT: poObj = new TABMAPObjMultiPoint; break; case TAB_GEOM_COLLECTION_C: case TAB_GEOM_COLLECTION: poObj = new TABMAPObjCollection(); break; default: CPLError(CE_Failure, CPLE_AssertionFailed, "TABMAPObjHdr::NewObj(): Unsupported object type %d", nNewObjType); } if (poObj) { poObj->m_nType = nNewObjType; poObj->m_nId = nId; poObj->m_nMinX = poObj->m_nMinY = poObj->m_nMaxX = poObj->m_nMaxY = 0; } return poObj; } /********************************************************************** * TABMAPObjHdr::ReadNextObj() * * Read next object in this block and allocate/init a new object for it * if succesful. * Returns NULL in case of error or if we reached end of block. **********************************************************************/ TABMAPObjHdr *TABMAPObjHdr::ReadNextObj(TABMAPObjectBlock *poObjBlock, TABMAPHeaderBlock *poHeader) { TABMAPObjHdr *poObjHdr = NULL; if (poObjBlock->AdvanceToNextObject(poHeader) != -1) { poObjHdr=TABMAPObjHdr::NewObj(poObjBlock->GetCurObjectType()); if (poObjHdr && ((poObjHdr->m_nId = poObjBlock->GetCurObjectId()) == -1 || poObjHdr->ReadObj(poObjBlock) != 0 ) ) { // Failed reading object in block... an error was already produced delete poObjHdr; return NULL; } } return poObjHdr; } /********************************************************************** * TABMAPObjHdr::IsCompressedType() * * Returns TRUE if the current object type uses compressed coordinates * or FALSE otherwise. **********************************************************************/ GBool TABMAPObjHdr::IsCompressedType() { // Compressed types are 1, 4, 7, etc. return ((m_nType % 3) == 1 ? TRUE : FALSE); } /********************************************************************** * TABMAPObjHdr::WriteObjTypeAndId() * * Writetype+object id information... should be called only by the derived * classes' WriteObj() methods. * * Returns 0 on success, -1 on error. **********************************************************************/ int TABMAPObjHdr::WriteObjTypeAndId(TABMAPObjectBlock *poObjBlock) { poObjBlock->WriteByte(m_nType); return poObjBlock->WriteInt32(m_nId); } /********************************************************************** * TABMAPObjHdr::SetMBR() * **********************************************************************/ void TABMAPObjHdr::SetMBR(GInt32 nMinX, GInt32 nMinY, GInt32 nMaxX, GInt32 nMaxY) { m_nMinX = MIN(nMinX, nMaxX); m_nMinY = MIN(nMinY, nMaxY); m_nMaxX = MAX(nMinX, nMaxX); m_nMaxY = MAX(nMinY, nMaxY); } /********************************************************************** * class TABMAPObjLine * * Applies to 2-points LINEs only **********************************************************************/ /********************************************************************** * TABMAPObjLine::ReadObj() * * Read Object information starting after the object id which should * have been read by TABMAPObjHdr::ReadNextObj() already. * This function should be called only by TABMAPObjHdr::ReadNextObj(). * * Returns 0 on success, -1 on error. **********************************************************************/ int TABMAPObjLine::ReadObj(TABMAPObjectBlock *poObjBlock) { poObjBlock->ReadIntCoord(IsCompressedType(), m_nX1, m_nY1); poObjBlock->ReadIntCoord(IsCompressedType(), m_nX2, m_nY2); m_nPenId = poObjBlock->ReadByte(); // Pen index SetMBR(m_nX1, m_nY1, m_nX2, m_nY2); if (CPLGetLastErrorNo() != 0) return -1; return 0; } /********************************************************************** * TABMAPObjLine::WriteObj() * * Write Object information with the type+object id * * Returns 0 on success, -1 on error. **********************************************************************/ int TABMAPObjLine::WriteObj(TABMAPObjectBlock *poObjBlock) { // Write object type and id TABMAPObjHdr::WriteObjTypeAndId(poObjBlock); poObjBlock->WriteIntCoord(m_nX1, m_nY1, IsCompressedType()); poObjBlock->WriteIntCoord(m_nX2, m_nY2, IsCompressedType()); poObjBlock->WriteByte(m_nPenId); // Pen index if (CPLGetLastErrorNo() != 0) return -1; return 0; } /********************************************************************** * class TABMAPObjPLine * * Applies to PLINE, MULTIPLINE and REGION object types **********************************************************************/ /********************************************************************** * TABMAPObjPLine::ReadObj() * * Read Object information starting after the object id which should * have been read by TABMAPObjHdr::ReadNextObj() already. * This function should be called only by TABMAPObjHdr::ReadNextObj(). * * Returns 0 on success, -1 on error. **********************************************************************/ int TABMAPObjPLine::ReadObj(TABMAPObjectBlock *poObjBlock) { m_nCoordBlockPtr = poObjBlock->ReadInt32(); m_nCoordDataSize = poObjBlock->ReadInt32(); if (m_nCoordDataSize & 0x80000000) { m_bSmooth = TRUE; m_nCoordDataSize &= 0x7FFFFFFF; //Take smooth flag out of the value } else { m_bSmooth = FALSE; } // Number of line segments applies only to MULTIPLINE/REGION but not PLINE if (m_nType == TAB_GEOM_PLINE_C || m_nType == TAB_GEOM_PLINE ) { m_numLineSections = 1; } else { m_numLineSections = poObjBlock->ReadInt16(); } #ifdef TABDUMP printf("PLINE/REGION: id=%d, type=%d, " "CoordBlockPtr=%d, CoordDataSize=%d, numLineSect=%d, bSmooth=%d\n", m_nId, m_nType, m_nCoordBlockPtr, m_nCoordDataSize, m_numLineSections, m_bSmooth); #endif if (IsCompressedType()) { // Region center/label point, relative to compr. coord. origin // No it's not relative to the Object block center m_nLabelX = poObjBlock->ReadInt16(); m_nLabelY = poObjBlock->ReadInt16(); // Compressed coordinate origin (present only in compressed case!) m_nComprOrgX = poObjBlock->ReadInt32(); m_nComprOrgY = poObjBlock->ReadInt32(); m_nLabelX += m_nComprOrgX; m_nLabelY += m_nComprOrgY; m_nMinX = m_nComprOrgX + poObjBlock->ReadInt16(); // Read MBR m_nMinY = m_nComprOrgY + poObjBlock->ReadInt16(); m_nMaxX = m_nComprOrgX + poObjBlock->ReadInt16(); m_nMaxY = m_nComprOrgY + poObjBlock->ReadInt16(); } else { // Region center/label point, relative to compr. coord. origin // No it's not relative to the Object block center m_nLabelX = poObjBlock->ReadInt32(); m_nLabelY = poObjBlock->ReadInt32(); m_nMinX = poObjBlock->ReadInt32(); // Read MBR m_nMinY = poObjBlock->ReadInt32(); m_nMaxX = poObjBlock->ReadInt32(); m_nMaxY = poObjBlock->ReadInt32(); } if ( ! IsCompressedType() ) { // Init. Compr. Origin to a default value in case type is ever changed m_nComprOrgX = (m_nMinX + m_nMaxX) / 2; m_nComprOrgY = (m_nMinY + m_nMaxY) / 2; } m_nPenId = poObjBlock->ReadByte(); // Pen index if (m_nType == TAB_GEOM_REGION || m_nType == TAB_GEOM_REGION_C || m_nType == TAB_GEOM_V450_REGION || m_nType == TAB_GEOM_V450_REGION_C ) { m_nBrushId = poObjBlock->ReadByte(); // Brush index... REGION only } else { m_nBrushId = 0; } if (CPLGetLastErrorNo() != 0) return -1; return 0; } /********************************************************************** * TABMAPObjPLine::WriteObj() * * Write Object information with the type+object id * * Returns 0 on success, -1 on error. **********************************************************************/ int TABMAPObjPLine::WriteObj(TABMAPObjectBlock *poObjBlock) { // Write object type and id TABMAPObjHdr::WriteObjTypeAndId(poObjBlock); poObjBlock->WriteInt32(m_nCoordBlockPtr); // Combine smooth flag in the coord data size. if (m_bSmooth) poObjBlock->WriteInt32( m_nCoordDataSize | 0x80000000 ); else poObjBlock->WriteInt32( m_nCoordDataSize ); // Number of line segments applies only to MULTIPLINE/REGION but not PLINE if (m_nType != TAB_GEOM_PLINE_C && m_nType != TAB_GEOM_PLINE ) { poObjBlock->WriteInt16(m_numLineSections); } if (IsCompressedType()) { // Region center/label point, relative to compr. coord. origin // No it's not relative to the Object block center poObjBlock->WriteInt16(m_nLabelX - m_nComprOrgX); poObjBlock->WriteInt16(m_nLabelY - m_nComprOrgY); // Compressed coordinate origin (present only in compressed case!) poObjBlock->WriteInt32(m_nComprOrgX); poObjBlock->WriteInt32(m_nComprOrgY); } else { // Region center/label point poObjBlock->WriteInt32(m_nLabelX); poObjBlock->WriteInt32(m_nLabelY); } // MBR if (IsCompressedType()) { // MBR relative to PLINE origin (and not object block center) poObjBlock->WriteInt16(m_nMinX - m_nComprOrgX); poObjBlock->WriteInt16(m_nMinY - m_nComprOrgY); poObjBlock->WriteInt16(m_nMaxX - m_nComprOrgX); poObjBlock->WriteInt16(m_nMaxY - m_nComprOrgY); } else { poObjBlock->WriteInt32(m_nMinX); poObjBlock->WriteInt32(m_nMinY); poObjBlock->WriteInt32(m_nMaxX); poObjBlock->WriteInt32(m_nMaxY); } poObjBlock->WriteByte(m_nPenId); // Pen index if (m_nType == TAB_GEOM_REGION || m_nType == TAB_GEOM_REGION_C || m_nType == TAB_GEOM_V450_REGION || m_nType == TAB_GEOM_V450_REGION_C ) { poObjBlock->WriteByte(m_nBrushId); // Brush index... REGION only } if (CPLGetLastErrorNo() != 0) return -1; return 0; } /********************************************************************** * class TABMAPObjPoint * **********************************************************************/ /********************************************************************** * TABMAPObjPoint::ReadObj() * * Read Object information starting after the object id **********************************************************************/ int TABMAPObjPoint::ReadObj(TABMAPObjectBlock *poObjBlock) { //__TODO__ For now this is read directly in ReadGeometryFromMAPFile() // This will be implemented the day we support random update. return 0; } /********************************************************************** * TABMAPObjPoint::WriteObj() * * Write Object information with the type+object id * * Returns 0 on success, -1 on error. **********************************************************************/ int TABMAPObjPoint::WriteObj(TABMAPObjectBlock *poObjBlock) { // Write object type and id TABMAPObjHdr::WriteObjTypeAndId(poObjBlock); poObjBlock->WriteIntCoord(m_nX, m_nY, IsCompressedType()); poObjBlock->WriteByte(m_nSymbolId); // Symbol index if (CPLGetLastErrorNo() != 0) return -1; return 0; } /********************************************************************** * class TABMAPObjFontPoint * **********************************************************************/ /********************************************************************** * TABMAPObjFontPoint::ReadObj() * * Read Object information starting after the object id **********************************************************************/ int TABMAPObjFontPoint::ReadObj(TABMAPObjectBlock *poObjBlock) { //__TODO__ For now this is read directly in ReadGeometryFromMAPFile() // This will be implemented the day we support random update. return 0; } /********************************************************************** * TABMAPObjFontPoint::WriteObj() * * Write Object information with the type+object id * * Returns 0 on success, -1 on error. **********************************************************************/ int TABMAPObjFontPoint::WriteObj(TABMAPObjectBlock *poObjBlock) { // Write object type and id TABMAPObjHdr::WriteObjTypeAndId(poObjBlock); poObjBlock->WriteByte(m_nSymbolId); // symbol shape poObjBlock->WriteByte(m_nPointSize); poObjBlock->WriteInt16(m_nFontStyle); // font style poObjBlock->WriteByte( m_nR ); poObjBlock->WriteByte( m_nG ); poObjBlock->WriteByte( m_nB ); poObjBlock->WriteByte( 0 ); poObjBlock->WriteByte( 0 ); poObjBlock->WriteByte( 0 ); poObjBlock->WriteInt16(m_nAngle); poObjBlock->WriteIntCoord(m_nX, m_nY, IsCompressedType()); poObjBlock->WriteByte(m_nFontId); // Font name index if (CPLGetLastErrorNo() != 0) return -1; return 0; } /********************************************************************** * class TABMAPObjCustomPoint * **********************************************************************/ /********************************************************************** * TABMAPObjCustomPoint::ReadObj() * * Read Object information starting after the object id **********************************************************************/ int TABMAPObjCustomPoint::ReadObj(TABMAPObjectBlock *poObjBlock) { //__TODO__ For now this is read directly in ReadGeometryFromMAPFile() // This will be implemented the day we support random update. return 0; } /********************************************************************** * TABMAPObjCustomPoint::WriteObj() * * Write Object information with the type+object id * * Returns 0 on success, -1 on error. **********************************************************************/ int TABMAPObjCustomPoint::WriteObj(TABMAPObjectBlock *poObjBlock) { // Write object type and id TABMAPObjHdr::WriteObjTypeAndId(poObjBlock); poObjBlock->WriteByte(m_nUnknown_); // ??? poObjBlock->WriteByte(m_nCustomStyle); // 0x01=Show BG, 0x02=Apply Color poObjBlock->WriteIntCoord(m_nX, m_nY, IsCompressedType()); poObjBlock->WriteByte(m_nSymbolId); // Symbol index poObjBlock->WriteByte(m_nFontId); // Font index if (CPLGetLastErrorNo() != 0) return -1; return 0; } /********************************************************************** * class TABMAPObjRectEllipse * **********************************************************************/ /********************************************************************** * TABMAPObjRectEllipse::ReadObj() * * Read Object information starting after the object id **********************************************************************/ int TABMAPObjRectEllipse::ReadObj(TABMAPObjectBlock *poObjBlock) { //__TODO__ For now this is read directly in ReadGeometryFromMAPFile() // This will be implemented the day we support random update. return 0; } /********************************************************************** * TABMAPObjRectEllipse::WriteObj() * * Write Object information with the type+object id * * Returns 0 on success, -1 on error. **********************************************************************/ int TABMAPObjRectEllipse::WriteObj(TABMAPObjectBlock *poObjBlock) { // Write object type and id TABMAPObjHdr::WriteObjTypeAndId(poObjBlock); if (m_nType == TAB_GEOM_ROUNDRECT || m_nType == TAB_GEOM_ROUNDRECT_C) { if (IsCompressedType()) { poObjBlock->WriteInt16(m_nCornerWidth); poObjBlock->WriteInt16(m_nCornerHeight); } else { poObjBlock->WriteInt32(m_nCornerWidth); poObjBlock->WriteInt32(m_nCornerHeight); } } poObjBlock->WriteIntMBRCoord(m_nMinX, m_nMinY, m_nMaxX, m_nMaxY, IsCompressedType()); poObjBlock->WriteByte(m_nPenId); // Pen index poObjBlock->WriteByte(m_nBrushId); // Brush index if (CPLGetLastErrorNo() != 0) return -1; return 0; } /********************************************************************** * class TABMAPObjArc * **********************************************************************/ /********************************************************************** * TABMAPObjArc::ReadObj() * * Read Object information starting after the object id **********************************************************************/ int TABMAPObjArc::ReadObj(TABMAPObjectBlock *poObjBlock) { //__TODO__ For now this is read directly in ReadGeometryFromMAPFile() // This will be implemented the day we support random update. return 0; } /********************************************************************** * TABMAPObjArc::WriteObj() * * Write Object information with the type+object id * * Returns 0 on success, -1 on error. **********************************************************************/ int TABMAPObjArc::WriteObj(TABMAPObjectBlock *poObjBlock) { // Write object type and id TABMAPObjHdr::WriteObjTypeAndId(poObjBlock); poObjBlock->WriteInt16(m_nStartAngle); poObjBlock->WriteInt16(m_nEndAngle); // An arc is defined by its defining ellipse's MBR: poObjBlock->WriteIntMBRCoord(m_nArcEllipseMinX, m_nArcEllipseMinY, m_nArcEllipseMaxX, m_nArcEllipseMaxY, IsCompressedType()); // Write the Arc's actual MBR poObjBlock->WriteIntMBRCoord(m_nMinX, m_nMinY, m_nMaxX, m_nMaxY, IsCompressedType()); poObjBlock->WriteByte(m_nPenId); // Pen index if (CPLGetLastErrorNo() != 0) return -1; return 0; } /********************************************************************** * class TABMAPObjText * **********************************************************************/ /********************************************************************** * TABMAPObjText::ReadObj() * * Read Object information starting after the object id **********************************************************************/ int TABMAPObjText::ReadObj(TABMAPObjectBlock *poObjBlock) { //__TODO__ For now this is read directly in ReadGeometryFromMAPFile() // This will be implemented the day we support random update. return 0; } /********************************************************************** * TABMAPObjText::WriteObj() * * Write Object information with the type+object id * * Returns 0 on success, -1 on error. **********************************************************************/ int TABMAPObjText::WriteObj(TABMAPObjectBlock *poObjBlock) { // Write object type and id TABMAPObjHdr::WriteObjTypeAndId(poObjBlock); poObjBlock->WriteInt32(m_nCoordBlockPtr); // String position poObjBlock->WriteInt16(m_nCoordDataSize); // String length poObjBlock->WriteInt16(m_nTextAlignment); // just./spacing/arrow poObjBlock->WriteInt16(m_nAngle); // Tenths of degree poObjBlock->WriteInt16(m_nFontStyle); // Font style/effect poObjBlock->WriteByte(m_nFGColorR ); poObjBlock->WriteByte(m_nFGColorG ); poObjBlock->WriteByte(m_nFGColorB ); poObjBlock->WriteByte(m_nBGColorR ); poObjBlock->WriteByte(m_nBGColorG ); poObjBlock->WriteByte(m_nBGColorB ); // Label line end point poObjBlock->WriteIntCoord(m_nLineEndX, m_nLineEndY, IsCompressedType()); // Text Height poObjBlock->WriteInt32(m_nHeight); // Font name poObjBlock->WriteByte(m_nFontId); // Font name index // MBR after rotation poObjBlock->WriteIntMBRCoord(m_nMinX, m_nMinY, m_nMaxX, m_nMaxY, IsCompressedType()); poObjBlock->WriteByte(m_nPenId); // Pen index if (CPLGetLastErrorNo() != 0) return -1; return 0; } /********************************************************************** * class TABMAPObjMultiPoint * * Applies to PLINE, MULTIPLINE and REGION object types **********************************************************************/ /********************************************************************** * TABMAPObjMultiPoint::ReadObj() * * Read Object information starting after the object id which should * have been read by TABMAPObjHdr::ReadNextObj() already. * This function should be called only by TABMAPObjHdr::ReadNextObj(). * * Returns 0 on success, -1 on error. **********************************************************************/ int TABMAPObjMultiPoint::ReadObj(TABMAPObjectBlock *poObjBlock) { m_nCoordBlockPtr = poObjBlock->ReadInt32(); m_nNumPoints = poObjBlock->ReadInt32(); if (IsCompressedType()) { m_nCoordDataSize = m_nNumPoints * 2 * 2; } else { m_nCoordDataSize = m_nNumPoints * 2 * 4; } #ifdef TABDUMP printf("MULTIPOINT: id=%d, type=%d, " "CoordBlockPtr=%d, CoordDataSize=%d, numPoints=%d\n", m_nId, m_nType, m_nCoordBlockPtr, m_nCoordDataSize, m_nNumPoints); #endif // ????? poObjBlock->ReadInt32(); poObjBlock->ReadInt32(); poObjBlock->ReadInt32(); poObjBlock->ReadByte(); poObjBlock->ReadByte(); poObjBlock->ReadByte(); m_nSymbolId = poObjBlock->ReadByte(); // ????? poObjBlock->ReadByte(); if (IsCompressedType()) { // Region center/label point, relative to compr. coord. origin // No it's not relative to the Object block center m_nLabelX = poObjBlock->ReadInt16(); m_nLabelY = poObjBlock->ReadInt16(); // Compressed coordinate origin m_nComprOrgX = poObjBlock->ReadInt32(); m_nComprOrgY = poObjBlock->ReadInt32(); m_nLabelX += m_nComprOrgX; m_nLabelY += m_nComprOrgY; m_nMinX = m_nComprOrgX + poObjBlock->ReadInt16(); // Read MBR m_nMinY = m_nComprOrgY + poObjBlock->ReadInt16(); m_nMaxX = m_nComprOrgX + poObjBlock->ReadInt16(); m_nMaxY = m_nComprOrgY + poObjBlock->ReadInt16(); } else { // Region center/label point m_nLabelX = poObjBlock->ReadInt32(); m_nLabelY = poObjBlock->ReadInt32(); m_nMinX = poObjBlock->ReadInt32(); // Read MBR m_nMinY = poObjBlock->ReadInt32(); m_nMaxX = poObjBlock->ReadInt32(); m_nMaxY = poObjBlock->ReadInt32(); // Init. Compr. Origin to a default value in case type is ever changed m_nComprOrgX = (m_nMinX + m_nMaxX) / 2; m_nComprOrgY = (m_nMinY + m_nMaxY) / 2; } if (CPLGetLastErrorNo() != 0) return -1; return 0; } /********************************************************************** * TABMAPObjMultiPoint::WriteObj() * * Write Object information with the type+object id * * Returns 0 on success, -1 on error. **********************************************************************/ int TABMAPObjMultiPoint::WriteObj(TABMAPObjectBlock *poObjBlock) { // Write object type and id TABMAPObjHdr::WriteObjTypeAndId(poObjBlock); poObjBlock->WriteInt32(m_nCoordBlockPtr); // Number of points poObjBlock->WriteInt32(m_nNumPoints); // unknown bytes poObjBlock->WriteInt32(0); poObjBlock->WriteInt32(0); poObjBlock->WriteInt32(0); poObjBlock->WriteByte(0); poObjBlock->WriteByte(0); poObjBlock->WriteByte(0); // Symbol Id poObjBlock->WriteByte(m_nSymbolId); // ???? poObjBlock->WriteByte(0); // MBR if (IsCompressedType()) { // Region center/label point, relative to compr. coord. origin // No it's not relative to the Object block center poObjBlock->WriteInt16(m_nLabelX - m_nComprOrgX); poObjBlock->WriteInt16(m_nLabelY - m_nComprOrgY); poObjBlock->WriteInt32(m_nComprOrgX); poObjBlock->WriteInt32(m_nComprOrgY); // MBR relative to object origin (and not object block center) poObjBlock->WriteInt16(m_nMinX - m_nComprOrgX); poObjBlock->WriteInt16(m_nMinY - m_nComprOrgY); poObjBlock->WriteInt16(m_nMaxX - m_nComprOrgX); poObjBlock->WriteInt16(m_nMaxY - m_nComprOrgY); } else { // Region center/label point poObjBlock->WriteInt32(m_nLabelX); poObjBlock->WriteInt32(m_nLabelY); poObjBlock->WriteInt32(m_nMinX); poObjBlock->WriteInt32(m_nMinY); poObjBlock->WriteInt32(m_nMaxX); poObjBlock->WriteInt32(m_nMaxY); } if (CPLGetLastErrorNo() != 0) return -1; return 0; } /********************************************************************** * class TABMAPObjCollection * **********************************************************************/ /********************************************************************** * TABMAPObjCollection::ReadObj() * * Read Object information starting after the object id which should * have been read by TABMAPObjHdr::ReadNextObj() already. * This function should be called only by TABMAPObjHdr::ReadNextObj(). * * Returns 0 on success, -1 on error. **********************************************************************/ int TABMAPObjCollection::ReadObj(TABMAPObjectBlock *poObjBlock) { const int SIZE_OF_PLINE_HDR = 24; const int SIZE_OF_REGION_HDR = 24; // const int SIZE_OF_MULTI_PT_HDR = 24; m_nCoordBlockPtr = poObjBlock->ReadInt32(); // pointer into coord block m_nNumMultiPoints = poObjBlock->ReadInt32(); // no. points in multi point m_nRegionDataSize = poObjBlock->ReadInt32(); // size of region data inc. section hdrs m_nPolylineDataSize = poObjBlock->ReadInt32(); // size of multipline data inc. section hdrs m_nNumRegSections = poObjBlock->ReadInt16(); // Num Region section headers m_nNumPLineSections = poObjBlock->ReadInt16(); // Num Pline section headers if (IsCompressedType()) { m_nMPointDataSize = m_nNumMultiPoints * 2 * 2; } else { m_nMPointDataSize = m_nNumMultiPoints * 2 * 4; } /* NB. The Region and Pline section headers are supposed to be extended * by 2 bytes to align with a 4 byte boundary. This extension is included * in the Region and Polyline data sizes read above. In reality the * extension is nowhere to be found so the actual data sizes are * two bytes shorter per section header. */ m_nTotalRegDataSize = 0; if(m_nNumRegSections > 0) { m_nTotalRegDataSize = SIZE_OF_REGION_HDR + m_nRegionDataSize - (2 * m_nNumRegSections); } m_nTotalPolyDataSize = 0; if(m_nNumPLineSections > 0) { m_nTotalPolyDataSize = SIZE_OF_PLINE_HDR + m_nPolylineDataSize - (2 * m_nNumPLineSections); } #ifdef TABDUMP printf("COLLECTION: id=%d, type=%d (0x%x), " "CoordBlockPtr=%d, numRegionSections=%d, " "numPlineSections=%d, numPoints=%d\n", m_nId, m_nType, m_nType, m_nCoordBlockPtr, m_nNumRegSections, m_nNumPLineSections, m_nNumMultiPoints); #endif // ??? All zeros ??? poObjBlock->ReadInt32(); poObjBlock->ReadInt32(); poObjBlock->ReadInt32(); poObjBlock->ReadByte(); poObjBlock->ReadByte(); poObjBlock->ReadByte(); m_nMultiPointSymbolId = poObjBlock->ReadByte(); poObjBlock->ReadByte(); // ??? m_nRegionPenId = poObjBlock->ReadByte(); m_nPolylinePenId = poObjBlock->ReadByte(); m_nRegionBrushId = poObjBlock->ReadByte(); if (IsCompressedType()) { #ifdef TABDUMP printf("COLLECTION: READING ComprOrg @ %d\n", poObjBlock->GetCurAddress()); #endif // Compressed coordinate origin m_nComprOrgX = poObjBlock->ReadInt32(); m_nComprOrgY = poObjBlock->ReadInt32(); m_nMinX = m_nComprOrgX + poObjBlock->ReadInt16(); // Read MBR m_nMinY = m_nComprOrgY + poObjBlock->ReadInt16(); m_nMaxX = m_nComprOrgX + poObjBlock->ReadInt16(); m_nMaxY = m_nComprOrgY + poObjBlock->ReadInt16(); #ifdef TABDUMP printf("COLLECTION: ComprOrgX,Y= (%d,%d)\n", m_nComprOrgX, m_nComprOrgY); #endif } else { m_nMinX = poObjBlock->ReadInt32(); // Read MBR m_nMinY = poObjBlock->ReadInt32(); m_nMaxX = poObjBlock->ReadInt32(); m_nMaxY = poObjBlock->ReadInt32(); // Init. Compr. Origin to a default value in case type is ever changed m_nComprOrgX = (m_nMinX + m_nMaxX) / 2; m_nComprOrgY = (m_nMinY + m_nMaxY) / 2; } if (CPLGetLastErrorNo() != 0) return -1; return 0; } /********************************************************************** * TABMAPObjCollection::WriteObj() * * Write Object information with the type+object id * * Returns 0 on success, -1 on error. **********************************************************************/ int TABMAPObjCollection::WriteObj(TABMAPObjectBlock *poObjBlock) { // Write object type and id TABMAPObjHdr::WriteObjTypeAndId(poObjBlock); poObjBlock->WriteInt32(m_nCoordBlockPtr); // pointer into coord block poObjBlock->WriteInt32(m_nNumMultiPoints); // no. points in multi point poObjBlock->WriteInt32(m_nRegionDataSize); // size of region data inc. section hdrs poObjBlock->WriteInt32(m_nPolylineDataSize); // size of Mpolyline data inc. sction hdrs poObjBlock->WriteInt16(m_nNumRegSections); // Num Region section headers poObjBlock->WriteInt16(m_nNumPLineSections); // Num Pline section headers // Unknown data ????? poObjBlock->WriteInt32(0); poObjBlock->WriteInt32(0); poObjBlock->WriteInt32(0); poObjBlock->WriteByte(0); poObjBlock->WriteByte(0); poObjBlock->WriteByte(0); poObjBlock->WriteByte(m_nMultiPointSymbolId); poObjBlock->WriteByte(0); poObjBlock->WriteByte(m_nRegionPenId); poObjBlock->WriteByte(m_nPolylinePenId); poObjBlock->WriteByte(m_nRegionBrushId); if (IsCompressedType()) { #ifdef TABDUMP printf("COLLECTION: WRITING ComprOrgX,Y= (%d,%d) @ %d\n", m_nComprOrgX, m_nComprOrgY, poObjBlock->GetCurAddress()); #endif // Compressed coordinate origin poObjBlock->WriteInt32(m_nComprOrgX); poObjBlock->WriteInt32(m_nComprOrgY); poObjBlock->WriteInt16(m_nMinX - m_nComprOrgX); // MBR poObjBlock->WriteInt16(m_nMinY - m_nComprOrgY); poObjBlock->WriteInt16(m_nMaxX - m_nComprOrgX); poObjBlock->WriteInt16(m_nMaxY - m_nComprOrgY); } else { poObjBlock->WriteInt32(m_nMinX); // MBR poObjBlock->WriteInt32(m_nMinY); poObjBlock->WriteInt32(m_nMaxX); poObjBlock->WriteInt32(m_nMaxY); } if (CPLGetLastErrorNo() != 0) return -1; return 0; }