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57 lines
2.2 KiB
C++
57 lines
2.2 KiB
C++
/******************************************************************************
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* Project: libsidx - A C API wrapper around libspatialindex
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* Purpose: Declarations to support stream loading via C API
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* Author: Howard Butler, hobu.inc@gmail.com
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******************************************************************************
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* Copyright (c) 2009, Howard Butler
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*
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* All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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******************************************************************************/
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#pragma once
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#include "sidx_export.h"
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class SIDX_DLL DataStream : public SpatialIndex::IDataStream
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{
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public:
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DataStream(int (*readNext)(SpatialIndex::id_type* id, double **pMin, double **pMax, uint32_t *nDimension, const uint8_t **pData, uint32_t *nDataLength));
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~DataStream();
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SpatialIndex::IData* getNext();
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bool hasNext();
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uint32_t size();
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void rewind();
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protected:
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SpatialIndex::RTree::Data* m_pNext;
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SpatialIndex::id_type m_id;
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private:
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int (*iterfunct)(SpatialIndex::id_type *id, double **pMin, double **pMax, uint32_t *nDimension, const uint8_t **pData, uint32_t *nDataLength);
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bool readData();
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bool m_bDoneReading;
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};
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