1 : /******************************************************************************
2 : * $Id: ogredigeolayer.cpp 22195 2011-04-17 18:21:14Z rouault $
3 : *
4 : * Project: EDIGEO Translator
5 : * Purpose: Implements OGREDIGEOLayer class.
6 : * Author: Even Rouault, <even dot rouault at mines dash paris dot org>
7 : *
8 : ******************************************************************************
9 : * Copyright (c) 2011, Even Rouault <even dot rouault at mines dash paris dot org>
10 : *
11 : * Permission is hereby granted, free of charge, to any person obtaining a
12 : * copy of this software and associated documentation files (the "Software"),
13 : * to deal in the Software without restriction, including without limitation
14 : * the rights to use, copy, modify, merge, publish, distribute, sublicense,
15 : * and/or sell copies of the Software, and to permit persons to whom the
16 : * Software is furnished to do so, subject to the following conditions:
17 : *
18 : * The above copyright notice and this permission notice shall be included
19 : * in all copies or substantial portions of the Software.
20 : *
21 : * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
22 : * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
23 : * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
24 : * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
25 : * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
26 : * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
27 : * DEALINGS IN THE SOFTWARE.
28 : ****************************************************************************/
29 :
30 : #include "ogr_edigeo.h"
31 : #include "cpl_conv.h"
32 : #include "cpl_string.h"
33 : #include "ogr_p.h"
34 : #include "ogr_srs_api.h"
35 :
36 : CPL_CVSID("$Id: ogredigeolayer.cpp 22195 2011-04-17 18:21:14Z rouault $");
37 :
38 : /************************************************************************/
39 : /* OGREDIGEOLayer() */
40 : /************************************************************************/
41 :
42 29 : OGREDIGEOLayer::OGREDIGEOLayer( OGREDIGEODataSource* poDS,
43 : const char* pszName, OGRwkbGeometryType eType,
44 29 : OGRSpatialReference* poSRS )
45 :
46 : {
47 29 : this->poDS = poDS;
48 29 : nNextFID = 0;
49 :
50 29 : this->poSRS = poSRS;
51 29 : if (poSRS)
52 29 : poSRS->Reference();
53 :
54 29 : poFeatureDefn = new OGRFeatureDefn( pszName );
55 29 : poFeatureDefn->Reference();
56 29 : poFeatureDefn->SetGeomType( eType );
57 29 : }
58 :
59 : /************************************************************************/
60 : /* ~OGREDIGEOLayer() */
61 : /************************************************************************/
62 :
63 29 : OGREDIGEOLayer::~OGREDIGEOLayer()
64 :
65 : {
66 1028 : for(int i=0;i<(int)aosFeatures.size();i++)
67 999 : delete aosFeatures[i];
68 :
69 29 : poFeatureDefn->Release();
70 :
71 29 : if (poSRS)
72 29 : poSRS->Release();
73 29 : }
74 :
75 :
76 : /************************************************************************/
77 : /* ResetReading() */
78 : /************************************************************************/
79 :
80 1 : void OGREDIGEOLayer::ResetReading()
81 :
82 : {
83 1 : nNextFID = 0;
84 1 : }
85 :
86 :
87 : /************************************************************************/
88 : /* GetNextFeature() */
89 : /************************************************************************/
90 :
91 252 : OGRFeature *OGREDIGEOLayer::GetNextFeature()
92 : {
93 : OGRFeature *poFeature;
94 :
95 0 : while(TRUE)
96 : {
97 252 : poFeature = GetNextRawFeature();
98 252 : if (poFeature == NULL)
99 1 : return NULL;
100 :
101 251 : if((m_poFilterGeom == NULL
102 : || FilterGeometry( poFeature->GetGeometryRef() ) )
103 : && (m_poAttrQuery == NULL
104 : || m_poAttrQuery->Evaluate( poFeature )) )
105 : {
106 251 : return poFeature;
107 : }
108 : else
109 0 : delete poFeature;
110 : }
111 : }
112 :
113 : /************************************************************************/
114 : /* GetNextRawFeature() */
115 : /************************************************************************/
116 :
117 252 : OGRFeature *OGREDIGEOLayer::GetNextRawFeature()
118 : {
119 252 : if (nNextFID < (int)aosFeatures.size())
120 : {
121 251 : OGRFeature* poFeature = aosFeatures[nNextFID]->Clone();
122 251 : nNextFID++;
123 251 : return poFeature;
124 : }
125 : else
126 1 : return NULL;
127 : }
128 :
129 : /************************************************************************/
130 : /* GetFeature() */
131 : /************************************************************************/
132 :
133 0 : OGRFeature * OGREDIGEOLayer::GetFeature(long nFID)
134 : {
135 0 : if (nFID >= 0 && nFID < (int)aosFeatures.size())
136 0 : return aosFeatures[nFID]->Clone();
137 : else
138 0 : return NULL;
139 : }
140 :
141 : /************************************************************************/
142 : /* TestCapability() */
143 : /************************************************************************/
144 :
145 0 : int OGREDIGEOLayer::TestCapability( const char * pszCap )
146 :
147 : {
148 0 : if (EQUAL(pszCap, OLCFastFeatureCount))
149 0 : return m_poFilterGeom == NULL && m_poAttrQuery == NULL;
150 :
151 0 : else if (EQUAL(pszCap, OLCRandomRead))
152 0 : return TRUE;
153 :
154 0 : else if (EQUAL(pszCap, OLCStringsAsUTF8))
155 0 : return poDS->HasUTF8ContentOnly();
156 :
157 0 : return FALSE;
158 : }
159 :
160 : /************************************************************************/
161 : /* GetExtent() */
162 : /************************************************************************/
163 :
164 0 : OGRErr OGREDIGEOLayer::GetExtent(OGREnvelope *psExtent, int bForce)
165 : {
166 : /*if (poDS->bExtentValid)
167 : {
168 : psExtent->MinX = poDS->dfMinX;
169 : psExtent->MinY = poDS->dfMinY;
170 : psExtent->MaxX = poDS->dfMaxX;
171 : psExtent->MaxY = poDS->dfMaxY;
172 : return OGRERR_NONE;
173 : }*/
174 :
175 0 : return OGRLayer::GetExtent(psExtent, bForce);
176 : }
177 :
178 : /************************************************************************/
179 : /* GetFeatureCount() */
180 : /************************************************************************/
181 :
182 39 : int OGREDIGEOLayer::GetFeatureCount( int bForce )
183 : {
184 39 : if (m_poFilterGeom != NULL || m_poAttrQuery != NULL)
185 0 : return OGRLayer::GetFeatureCount(bForce);
186 :
187 39 : return (int)aosFeatures.size();
188 : }
189 :
190 : /************************************************************************/
191 : /* AddFeature() */
192 : /************************************************************************/
193 :
194 999 : void OGREDIGEOLayer::AddFeature(OGRFeature* poFeature)
195 : {
196 999 : poFeature->SetFID(aosFeatures.size());
197 999 : aosFeatures.push_back(poFeature);
198 999 : }
199 :
200 : /************************************************************************/
201 : /* GetAttributeIndex() */
202 : /************************************************************************/
203 :
204 4252 : int OGREDIGEOLayer::GetAttributeIndex(const CPLString& osRID)
205 : {
206 : std::map<CPLString,int>::iterator itAttrIndex =
207 4252 : mapAttributeToIndex.find(osRID);
208 4252 : if (itAttrIndex != mapAttributeToIndex.end())
209 4252 : return itAttrIndex->second;
210 : else
211 0 : return -1;
212 : }
213 :
214 : /************************************************************************/
215 : /* AddFieldDefn() */
216 : /************************************************************************/
217 :
218 176 : void OGREDIGEOLayer::AddFieldDefn(const CPLString& osName,
219 : OGRFieldType eType,
220 : const CPLString& osRID)
221 : {
222 176 : if (osRID.size() != 0)
223 107 : mapAttributeToIndex[osRID] = poFeatureDefn->GetFieldCount();
224 :
225 176 : OGRFieldDefn oFieldDefn(osName, eType);
226 176 : poFeatureDefn->AddFieldDefn(&oFieldDefn);
227 176 : }
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