Line data Source code
1 : /******************************************************************************
2 : * $Id$
3 : *
4 : * Project: KML Driver
5 : * Purpose: Declarations for OGR wrapper classes for KML, and OGR->KML
6 : * translation of geometry.
7 : * Author: Christopher Condit, condit@sdsc.edu;
8 : * Jens Oberender, j.obi@troja.net
9 : *
10 : ******************************************************************************
11 : * Copyright (c) 2006, Christopher Condit
12 : * 2007, Jens Oberender
13 : * Copyright (c) 2007-2014, Even Rouault <even dot rouault at spatialys.com>
14 : *
15 : * Permission is hereby granted, free of charge, to any person obtaining a
16 : * copy of this software and associated documentation files (the "Software"),
17 : * to deal in the Software without restriction, including without limitation
18 : * the rights to use, copy, modify, merge, publish, distribute, sublicense,
19 : * and/or sell copies of the Software, and to permit persons to whom the
20 : * Software is furnished to do so, subject to the following conditions:
21 : *
22 : * The above copyright notice and this permission notice shall be included
23 : * in all copies or substantial portions of the Software.
24 : *
25 : * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
26 : * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
27 : * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
28 : * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
29 : * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
30 : * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
31 : * DEALINGS IN THE SOFTWARE.
32 : ****************************************************************************/
33 : #ifndef OGR_KML_H_INCLUDED
34 : #define OGR_KML_H_INCLUDED
35 :
36 : #include "ogrsf_frmts.h"
37 :
38 : #ifdef HAVE_EXPAT
39 : #include "kmlvector.h"
40 : #endif
41 :
42 : class OGRKMLDataSource;
43 :
44 : /************************************************************************/
45 : /* OGRKMLLayer */
46 : /************************************************************************/
47 :
48 : class OGRKMLLayer final : public OGRLayer
49 : {
50 : public:
51 : OGRKMLLayer(const char *pszName_, const OGRSpatialReference *poSRS,
52 : bool bWriter, OGRwkbGeometryType eType, OGRKMLDataSource *poDS);
53 : ~OGRKMLLayer();
54 :
55 : //
56 : // OGRLayer Interface
57 : //
58 : OGRFeatureDefn *GetLayerDefn() override;
59 : OGRErr ICreateFeature(OGRFeature *poFeature) override;
60 : OGRErr CreateField(const OGRFieldDefn *poField,
61 : int bApproxOK = TRUE) override;
62 : void ResetReading() override;
63 : OGRFeature *GetNextFeature() override;
64 : GIntBig GetFeatureCount(int bForce = TRUE) override;
65 : int TestCapability(const char *pszCap) override;
66 :
67 : GDALDataset *GetDataset() override;
68 :
69 : //
70 : // OGRKMLLayer Interface
71 : //
72 : void SetLayerNumber(int nLayer);
73 :
74 19 : void SetClosedForWriting()
75 : {
76 19 : bClosedForWriting = true;
77 19 : }
78 :
79 : CPLString WriteSchema();
80 :
81 : private:
82 : friend class OGRKMLDataSource;
83 :
84 : OGRKMLDataSource *poDS_;
85 : OGRSpatialReference *poSRS_;
86 : OGRCoordinateTransformation *poCT_;
87 :
88 : OGRFeatureDefn *poFeatureDefn_;
89 :
90 : int iNextKMLId_;
91 : bool bWriter_;
92 : int nLayerNumber_;
93 : int nWroteFeatureCount_;
94 : bool bSchemaWritten_;
95 : bool bClosedForWriting;
96 : char *pszName_;
97 :
98 : int nLastAsked;
99 : int nLastCount;
100 : };
101 :
102 : /************************************************************************/
103 : /* OGRKMLDataSource */
104 : /************************************************************************/
105 :
106 : class OGRKMLDataSource final : public OGRDataSource
107 : {
108 : public:
109 : OGRKMLDataSource();
110 : ~OGRKMLDataSource();
111 :
112 : //
113 : // OGRDataSource Interface
114 : //
115 : int Open(const char *pszName, int bTestOpen);
116 :
117 0 : const char *GetName() override
118 : {
119 0 : return pszName_;
120 : }
121 :
122 1243 : int GetLayerCount() override
123 : {
124 1243 : return nLayers_;
125 : }
126 :
127 : OGRLayer *GetLayer(int nLayer) override;
128 : OGRLayer *ICreateLayer(const char *pszName,
129 : const OGRGeomFieldDefn *poGeomFieldDefn,
130 : CSLConstList papszOptions) override;
131 : int TestCapability(const char *pszCap) override;
132 :
133 : //
134 : // OGRKMLDataSource Interface
135 : //
136 : int Create(const char *pszName, char **papszOptions);
137 :
138 1581 : const char *GetNameField() const
139 : {
140 1581 : return pszNameField_;
141 : }
142 :
143 1497 : const char *GetDescriptionField() const
144 : {
145 1497 : return pszDescriptionField_;
146 : }
147 :
148 90 : const char *GetAltitudeMode()
149 : {
150 90 : return pszAltitudeMode_;
151 : }
152 :
153 128 : VSILFILE *GetOutputFP()
154 : {
155 128 : return fpOutput_;
156 : }
157 :
158 : void GrowExtents(OGREnvelope *psGeomBounds);
159 : #ifdef HAVE_EXPAT
160 810 : KML *GetKMLFile()
161 : {
162 810 : return poKMLFile_;
163 : }
164 : #endif
165 :
166 0 : bool IsFirstCTError() const
167 : {
168 0 : return !bIssuedCTError_;
169 : }
170 :
171 0 : void IssuedFirstCTError()
172 : {
173 0 : bIssuedCTError_ = true;
174 0 : }
175 :
176 : private:
177 : #ifdef HAVE_EXPAT
178 : KML *poKMLFile_;
179 : #endif
180 :
181 : char *pszName_;
182 :
183 : OGRKMLLayer **papoLayers_;
184 : int nLayers_;
185 :
186 : // The name of the field to use for the KML name element.
187 : char *pszNameField_;
188 : char *pszDescriptionField_;
189 :
190 : // The KML altitude mode to use.
191 : char *pszAltitudeMode_;
192 :
193 : char **papszCreateOptions_;
194 :
195 : // Output related parameters.
196 : VSILFILE *fpOutput_;
197 :
198 : OGREnvelope oEnvelope_;
199 :
200 : // Have we issued a coordinate transformation already for this datasource.
201 : bool bIssuedCTError_;
202 : };
203 :
204 : #endif /* OGR_KML_H_INCLUDED */
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