1 : /******************************************************************************
2 : * $Id: ogr_htf.h 20996 2010-10-28 18:38:15Z rouault $
3 : *
4 : * Project: HTF Translator
5 : * Purpose: Definition of classes for OGR .htf driver.
6 : * Author: Even Rouault, even dot rouault at mines dash paris dot org
7 : *
8 : ******************************************************************************
9 : * Copyright (c) 2010, 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 : #ifndef _OGR_HTF_H_INCLUDED
31 : #define _OGR_HTF_H_INCLUDED
32 :
33 : #include "ogrsf_frmts.h"
34 :
35 : #include <vector>
36 :
37 : /************************************************************************/
38 : /* OGRHTFLayer */
39 : /************************************************************************/
40 :
41 : class OGRHTFLayer : public OGRLayer
42 : {
43 : protected:
44 : OGRFeatureDefn* poFeatureDefn;
45 : OGRSpatialReference *poSRS;
46 :
47 : VSILFILE* fpHTF;
48 : int bEOF;
49 :
50 : int nNextFID;
51 :
52 : virtual OGRFeature * GetNextRawFeature() = 0;
53 :
54 : int bHasExtent;
55 : double dfMinX;
56 : double dfMinY;
57 : double dfMaxX;
58 : double dfMaxY;
59 :
60 : public:
61 : OGRHTFLayer(const char* pszFilename, int nZone, int bIsNorth);
62 : ~OGRHTFLayer();
63 :
64 :
65 : virtual void ResetReading();
66 : virtual OGRFeature * GetNextFeature();
67 :
68 95 : virtual OGRFeatureDefn * GetLayerDefn() { return poFeatureDefn; }
69 :
70 : virtual int TestCapability( const char * );
71 :
72 2 : virtual OGRSpatialReference *GetSpatialRef() { return poSRS; }
73 :
74 : virtual OGRErr GetExtent(OGREnvelope *psExtent, int bForce = TRUE);
75 : void SetExtent(double dfMinX, double dfMinY, double dfMaxX, double dfMaxY);
76 :
77 : };
78 :
79 : /************************************************************************/
80 : /* OGRHTFPolygonLayer */
81 : /************************************************************************/
82 :
83 : class OGRHTFPolygonLayer : public OGRHTFLayer
84 6 : {
85 : protected:
86 : virtual OGRFeature * GetNextRawFeature();
87 :
88 : public:
89 : OGRHTFPolygonLayer(const char* pszFilename, int nZone, int bIsNorth);
90 :
91 : virtual void ResetReading();
92 : };
93 :
94 : /************************************************************************/
95 : /* OGRHTFSoundingLayer */
96 : /************************************************************************/
97 :
98 : class OGRHTFSoundingLayer : public OGRHTFLayer
99 : {
100 : private:
101 : int bHasFPK;
102 : int nFieldsPresent;
103 : int *panFieldPresence;
104 : int nEastingIndex, nNorthingIndex;
105 : int nTotalSoundings;
106 :
107 : protected:
108 : virtual OGRFeature * GetNextRawFeature();
109 :
110 : public:
111 : OGRHTFSoundingLayer(const char* pszFilename, int nZone, int bIsNorth, int nTotalSoundings);
112 : ~OGRHTFSoundingLayer();
113 :
114 : virtual void ResetReading();
115 :
116 : virtual int TestCapability( const char * );
117 :
118 : virtual int GetFeatureCount(int bForce = TRUE);
119 : };
120 :
121 : /************************************************************************/
122 : /* OGRHTFMetadataLayer */
123 : /************************************************************************/
124 :
125 : class OGRHTFMetadataLayer : public OGRLayer
126 : {
127 : protected:
128 : OGRFeatureDefn *poFeatureDefn;
129 : OGRFeature *poFeature;
130 : std::vector<CPLString> aosMD;
131 :
132 : int nNextFID;
133 :
134 : public:
135 : OGRHTFMetadataLayer(std::vector<CPLString> aosMD);
136 : ~OGRHTFMetadataLayer();
137 :
138 :
139 23 : virtual void ResetReading() { nNextFID = 0; }
140 : virtual OGRFeature * GetNextFeature();
141 :
142 114 : virtual OGRFeatureDefn * GetLayerDefn() { return poFeatureDefn; }
143 :
144 4 : virtual int TestCapability( const char * ) { return FALSE; }
145 :
146 1 : virtual OGRSpatialReference *GetSpatialRef() { return NULL; }
147 : };
148 :
149 : /************************************************************************/
150 : /* OGRHTFDataSource */
151 : /************************************************************************/
152 :
153 : class OGRHTFDataSource : public OGRDataSource
154 : {
155 : char* pszName;
156 :
157 : OGRHTFLayer** papoLayers;
158 : int nLayers;
159 : OGRLayer *poMetadataLayer;
160 :
161 : public:
162 : OGRHTFDataSource();
163 : ~OGRHTFDataSource();
164 :
165 : int Open( const char * pszFilename,
166 : int bUpdate );
167 :
168 3 : virtual const char* GetName() { return pszName; }
169 :
170 4 : virtual int GetLayerCount() { return nLayers; }
171 : virtual OGRLayer* GetLayer( int );
172 : virtual OGRLayer* GetLayerByName( const char* pszLayerName );
173 :
174 : virtual int TestCapability( const char * );
175 : };
176 :
177 : /************************************************************************/
178 : /* OGRHTFDriver */
179 : /************************************************************************/
180 :
181 : class OGRHTFDriver : public OGRSFDriver
182 178 : {
183 : public:
184 : ~OGRHTFDriver();
185 :
186 : virtual const char* GetName();
187 : virtual OGRDataSource* Open( const char *, int );
188 : virtual int TestCapability( const char * );
189 : };
190 :
191 :
192 : #endif /* ndef _OGR_HTF_H_INCLUDED */
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