/src/gdal/ogr/ogrsf_frmts/edigeo/ogredigeolayer.cpp
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1 | | /****************************************************************************** |
2 | | * |
3 | | * Project: EDIGEO Translator |
4 | | * Purpose: Implements OGREDIGEOLayer class. |
5 | | * Author: Even Rouault, <even dot rouault at spatialys.com> |
6 | | * |
7 | | ****************************************************************************** |
8 | | * Copyright (c) 2011-2013, Even Rouault <even dot rouault at spatialys.com> |
9 | | * |
10 | | * SPDX-License-Identifier: MIT |
11 | | ****************************************************************************/ |
12 | | |
13 | | #include "ogr_edigeo.h" |
14 | | #include "cpl_conv.h" |
15 | | #include "cpl_string.h" |
16 | | #include "ogr_p.h" |
17 | | #include "ogr_srs_api.h" |
18 | | |
19 | | /************************************************************************/ |
20 | | /* OGREDIGEOLayer() */ |
21 | | /************************************************************************/ |
22 | | |
23 | | OGREDIGEOLayer::OGREDIGEOLayer(OGREDIGEODataSource *poDSIn, const char *pszName, |
24 | | OGRwkbGeometryType eType, |
25 | | OGRSpatialReference *poSRSIn) |
26 | 0 | : poDS(poDSIn), poFeatureDefn(new OGRFeatureDefn(pszName)), poSRS(poSRSIn), |
27 | 0 | nNextFID(0) |
28 | 0 | { |
29 | 0 | if (poSRS) |
30 | 0 | poSRS->Reference(); |
31 | |
|
32 | 0 | poFeatureDefn->Reference(); |
33 | 0 | poFeatureDefn->SetGeomType(eType); |
34 | 0 | if (poFeatureDefn->GetGeomFieldCount() != 0) |
35 | 0 | poFeatureDefn->GetGeomFieldDefn(0)->SetSpatialRef(poSRS); |
36 | 0 | SetDescription(poFeatureDefn->GetName()); |
37 | 0 | } |
38 | | |
39 | | /************************************************************************/ |
40 | | /* ~OGREDIGEOLayer() */ |
41 | | /************************************************************************/ |
42 | | |
43 | | OGREDIGEOLayer::~OGREDIGEOLayer() |
44 | | |
45 | 0 | { |
46 | 0 | for (int i = 0; i < (int)aosFeatures.size(); i++) |
47 | 0 | delete aosFeatures[i]; |
48 | |
|
49 | 0 | poFeatureDefn->Release(); |
50 | |
|
51 | 0 | if (poSRS) |
52 | 0 | poSRS->Release(); |
53 | 0 | } |
54 | | |
55 | | /************************************************************************/ |
56 | | /* ResetReading() */ |
57 | | /************************************************************************/ |
58 | | |
59 | | void OGREDIGEOLayer::ResetReading() |
60 | | |
61 | 0 | { |
62 | 0 | nNextFID = 0; |
63 | 0 | } |
64 | | |
65 | | /************************************************************************/ |
66 | | /* GetNextRawFeature() */ |
67 | | /************************************************************************/ |
68 | | |
69 | | OGRFeature *OGREDIGEOLayer::GetNextRawFeature() |
70 | 0 | { |
71 | 0 | if (nNextFID < (int)aosFeatures.size()) |
72 | 0 | { |
73 | 0 | OGRFeature *poFeature = aosFeatures[nNextFID]->Clone(); |
74 | 0 | nNextFID++; |
75 | 0 | return poFeature; |
76 | 0 | } |
77 | 0 | else |
78 | 0 | return nullptr; |
79 | 0 | } |
80 | | |
81 | | /************************************************************************/ |
82 | | /* GetFeature() */ |
83 | | /************************************************************************/ |
84 | | |
85 | | OGRFeature *OGREDIGEOLayer::GetFeature(GIntBig nFID) |
86 | 0 | { |
87 | 0 | if (nFID >= 0 && nFID < (int)aosFeatures.size()) |
88 | 0 | return aosFeatures[(int)nFID]->Clone(); |
89 | 0 | else |
90 | 0 | return nullptr; |
91 | 0 | } |
92 | | |
93 | | /************************************************************************/ |
94 | | /* TestCapability() */ |
95 | | /************************************************************************/ |
96 | | |
97 | | int OGREDIGEOLayer::TestCapability(const char *pszCap) const |
98 | | |
99 | 0 | { |
100 | 0 | if (EQUAL(pszCap, OLCFastFeatureCount)) |
101 | 0 | return m_poFilterGeom == nullptr && m_poAttrQuery == nullptr; |
102 | | |
103 | 0 | else if (EQUAL(pszCap, OLCRandomRead)) |
104 | 0 | return TRUE; |
105 | | |
106 | 0 | else if (EQUAL(pszCap, OLCStringsAsUTF8)) |
107 | 0 | return poDS->HasUTF8ContentOnly(); |
108 | | |
109 | 0 | return FALSE; |
110 | 0 | } |
111 | | |
112 | | /************************************************************************/ |
113 | | /* GetFeatureCount() */ |
114 | | /************************************************************************/ |
115 | | |
116 | | GIntBig OGREDIGEOLayer::GetFeatureCount(int bForce) |
117 | 0 | { |
118 | 0 | if (m_poFilterGeom != nullptr || m_poAttrQuery != nullptr) |
119 | 0 | return OGRLayer::GetFeatureCount(bForce); |
120 | | |
121 | 0 | return (int)aosFeatures.size(); |
122 | 0 | } |
123 | | |
124 | | /************************************************************************/ |
125 | | /* AddFeature() */ |
126 | | /************************************************************************/ |
127 | | |
128 | | void OGREDIGEOLayer::AddFeature(OGRFeature *poFeature) |
129 | 0 | { |
130 | 0 | poFeature->SetFID(aosFeatures.size()); |
131 | 0 | aosFeatures.push_back(poFeature); |
132 | 0 | } |
133 | | |
134 | | /************************************************************************/ |
135 | | /* GetAttributeIndex() */ |
136 | | /************************************************************************/ |
137 | | |
138 | | int OGREDIGEOLayer::GetAttributeIndex(const CPLString &osRID) |
139 | 0 | { |
140 | 0 | std::map<CPLString, int>::iterator itAttrIndex = |
141 | 0 | mapAttributeToIndex.find(osRID); |
142 | 0 | if (itAttrIndex != mapAttributeToIndex.end()) |
143 | 0 | return itAttrIndex->second; |
144 | 0 | else |
145 | 0 | return -1; |
146 | 0 | } |
147 | | |
148 | | /************************************************************************/ |
149 | | /* AddFieldDefn() */ |
150 | | /************************************************************************/ |
151 | | |
152 | | void OGREDIGEOLayer::AddFieldDefn(const CPLString &osName, OGRFieldType eType, |
153 | | const CPLString &osRID) |
154 | 0 | { |
155 | 0 | if (!osRID.empty()) |
156 | 0 | mapAttributeToIndex[osRID] = poFeatureDefn->GetFieldCount(); |
157 | |
|
158 | 0 | OGRFieldDefn oFieldDefn(osName, eType); |
159 | 0 | poFeatureDefn->AddFieldDefn(&oFieldDefn); |
160 | 0 | } |