BoundsQuery.h

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/******************************************************************************
 * Project:  libsidx - A C API wrapper around libspatialindex
 * Purpose:  C++ object declarations to implement the bounds query.
 * Author:   Howard Butler, hobu.inc@gmail.com
 ******************************************************************************
 * Copyright (c) 2009, Howard Butler
 *
 * All rights reserved.
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
******************************************************************************/
 
#pragma once
 
#include "sidx_export.h"
 
class SIDX_DLL BoundsQuery : public SpatialIndex::IQueryStrategy
{
private:
    SpatialIndex::Region* m_bounds;
    
public:
 
    BoundsQuery();
    ~BoundsQuery() { if (m_bounds != 0) delete m_bounds; }
    void getNextEntry(  const SpatialIndex::IEntry& entry, 
                        SpatialIndex::id_type& nextEntry, 
                        bool& hasNext);
    
    SpatialIndex::Region* GetBounds() const { return m_bounds; }
};