1 : /******************************************************************************
2 : * $Id: ogravce00datasource.cpp 10645 2007-01-18 02:22:39Z warmerdam $
3 : *
4 : * Project: OGR
5 : * Purpose: Implements OGRAVCE00DataSource class.
6 : * Author: Frank Warmerdam, warmerdam@pobox.com
7 : * James Flemer <jflemer@alum.rpi.edu>
8 : *
9 : ******************************************************************************
10 : * Copyright (c) 2002, Frank Warmerdam <warmerdam@pobox.com>
11 : * Copyright (c) 2006, James Flemer <jflemer@alum.rpi.edu>
12 : *
13 : * Permission is hereby granted, free of charge, to any person obtaining a
14 : * copy of this software and associated documentation files (the "Software"),
15 : * to deal in the Software without restriction, including without limitation
16 : * the rights to use, copy, modify, merge, publish, distribute, sublicense,
17 : * and/or sell copies of the Software, and to permit persons to whom the
18 : * Software is furnished to do so, subject to the following conditions:
19 : *
20 : * The above copyright notice and this permission notice shall be included
21 : * in all copies or substantial portions of the Software.
22 : *
23 : * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
24 : * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
25 : * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
26 : * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
27 : * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
28 : * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
29 : * DEALINGS IN THE SOFTWARE.
30 : ****************************************************************************/
31 :
32 : #include "ogr_avc.h"
33 : #include "cpl_conv.h"
34 : #include "cpl_string.h"
35 :
36 : CPL_CVSID("$Id: ogravce00datasource.cpp 10645 2007-01-18 02:22:39Z warmerdam $");
37 :
38 : /************************************************************************/
39 : /* OGRAVCE00DataSource() */
40 : /************************************************************************/
41 :
42 51 : OGRAVCE00DataSource::OGRAVCE00DataSource()
43 51 : : nLayers(0), pszName(NULL), psE00(NULL), papoLayers(NULL)
44 : {
45 51 : }
46 :
47 : /************************************************************************/
48 : /* ~OGRAVCE00DataSource() */
49 : /************************************************************************/
50 :
51 102 : OGRAVCE00DataSource::~OGRAVCE00DataSource()
52 :
53 : {
54 51 : if( psE00 )
55 : {
56 1 : AVCE00ReadCloseE00( psE00 );
57 1 : psE00 = NULL;
58 : }
59 :
60 51 : CPLFree( pszName );
61 :
62 53 : for( int i = 0; i < nLayers; i++ )
63 2 : delete papoLayers[i];
64 :
65 51 : CPLFree( papoLayers );
66 102 : }
67 :
68 : /************************************************************************/
69 : /* Open() */
70 : /************************************************************************/
71 :
72 51 : int OGRAVCE00DataSource::Open( const char * pszNewName, int bTestOpen )
73 :
74 : {
75 : /* -------------------------------------------------------------------- */
76 : /* Open the source file. Supress error reporting if we are in */
77 : /* TestOpen mode. */
78 : /* -------------------------------------------------------------------- */
79 51 : if( bTestOpen )
80 51 : CPLPushErrorHandler( CPLQuietErrorHandler );
81 :
82 51 : psE00 = AVCE00ReadOpenE00(pszNewName);
83 :
84 51 : if( bTestOpen )
85 : {
86 51 : CPLPopErrorHandler();
87 51 : CPLErrorReset();
88 : }
89 :
90 51 : if( psE00 == NULL )
91 50 : return FALSE;
92 :
93 1 : pszName = CPLStrdup( pszNewName );
94 : /* pszCoverageName = CPLStrdup( psE00->pszCoverName ); */
95 1 : pszCoverageName = CPLStrdup( pszNewName );
96 :
97 : /* -------------------------------------------------------------------- */
98 : /* Create layers for the "interesting" sections of the coverage. */
99 : /* -------------------------------------------------------------------- */
100 : int iSection;
101 :
102 : papoLayers = (OGRAVCE00Layer **)
103 1 : CPLCalloc( sizeof(OGRAVCE00Layer *), psE00->numSections );
104 1 : nLayers = 0;
105 :
106 8 : for( iSection = 0; iSection < psE00->numSections; iSection++ )
107 : {
108 7 : AVCE00Section *psSec = psE00->pasSections + iSection;
109 :
110 7 : switch( psSec->eType )
111 : {
112 : case AVCFileARC:
113 : case AVCFilePAL:
114 : case AVCFileCNT:
115 : case AVCFileLAB:
116 : case AVCFileRPL:
117 : case AVCFileTXT:
118 2 : papoLayers[nLayers++] = new OGRAVCE00Layer( this, psSec );
119 2 : break;
120 :
121 : case AVCFileTX6:
122 0 : break;
123 :
124 : case AVCFileTABLE:
125 4 : CheckAddTable(psSec);
126 : break;
127 :
128 : case AVCFilePRJ:
129 : {
130 : #if 0
131 : poSRS = new OGRSpatialReference();
132 : char **papszPRJ;
133 : AVCE00File *hFile;
134 :
135 : hFile = AVCE00ReadOpen(psE00->pszCoverPath,
136 : psSec->pszFilename,
137 : psE00->eCoverType,
138 : psSec->eType,
139 : psE00->psDBCSInfo);
140 : if( hFile && poSRS == NULL )
141 : {
142 : papszPRJ = AVCE00ReadNextPrj( hFile );
143 :
144 : poSRS = new OGRSpatialReference();
145 : if( poSRS->importFromESRI( papszPRJ ) != OGRERR_NONE )
146 : {
147 : CPLError( CE_Warning, CPLE_AppDefined,
148 : "Failed to parse PRJ section, ignoring." );
149 : delete poSRS;
150 : poSRS = NULL;
151 : }
152 : AVCE00ReadClose( hFile );
153 : }
154 : #endif
155 : }
156 : break;
157 :
158 : default:
159 : ;
160 : }
161 : }
162 :
163 1 : return nLayers > 0;
164 : }
165 :
166 4 : int OGRAVCE00DataSource::CheckAddTable( AVCE00Section *psTblSection )
167 : {
168 4 : int i, nCount = 0;
169 12 : for (i = 0; i < nLayers; ++i)
170 : {
171 8 : if (papoLayers[i]->CheckSetupTable(psTblSection))
172 0 : ++nCount;
173 : }
174 4 : return nCount;
175 : }
176 :
177 : /************************************************************************/
178 : /* TestCapability() */
179 : /************************************************************************/
180 :
181 0 : int OGRAVCE00DataSource::TestCapability( const char * pszCap )
182 :
183 : {
184 0 : return FALSE;
185 : }
186 :
187 : /************************************************************************/
188 : /* GetLayer() */
189 : /************************************************************************/
190 :
191 1 : OGRLayer *OGRAVCE00DataSource::GetLayer( int iLayer )
192 :
193 : {
194 1 : if( iLayer < 0 || iLayer >= nLayers )
195 0 : return NULL;
196 : else
197 1 : return papoLayers[iLayer];
198 : }
199 :
200 : /************************************************************************/
201 : /* GetSpatialRef() */
202 : /************************************************************************/
203 0 : OGRSpatialReference *OGRAVCE00DataSource::GetSpatialRef()
204 : {
205 0 : if (NULL == poSRS && psE00 != NULL)
206 : /* if (psE00 != NULL) */
207 : {
208 : int iSection;
209 : AVCE00Section *psSec;
210 : char **pszPRJ;
211 :
212 0 : for( iSection = 0; iSection < psE00->numSections; iSection++ )
213 : {
214 0 : psSec = psE00->pasSections + iSection;
215 0 : if (psSec->eType == AVCFilePRJ)
216 : {
217 0 : AVCE00ReadGotoSectionE00(psE00, psSec, 0);
218 0 : pszPRJ = (char **)AVCE00ReadNextObjectE00(psE00);
219 0 : poSRS = new OGRSpatialReference();
220 0 : if( poSRS->importFromESRI( pszPRJ ) != OGRERR_NONE )
221 : {
222 : CPLError( CE_Warning, CPLE_AppDefined,
223 0 : "Failed to parse PRJ section, ignoring." );
224 0 : delete poSRS;
225 0 : poSRS = NULL;
226 : }
227 0 : break;
228 : }
229 : }
230 : }
231 0 : return poSRS;
232 : }
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