Line data    Source code

       1             : /******************************************************************************
       2             :  *
       3             :  * Project:  OpenGIS Simple Features Reference Implementation
       4             :  * Purpose:  Definitions related to support for use of GEOS in OGR.
       5             :  *           This file is only intended to be pulled in by OGR implementation
       6             :  *           code directly accessing GEOS.
       7             :  * Author:   Frank Warmerdam <warmerdam@pobox.com>
       8             :  *
       9             :  ******************************************************************************
      10             :  * Copyright (c) 2004, Frank Warmerdam <warmerdam@pobox.com>
      11             :  *
      12             :  * SPDX-License-Identifier: MIT
      13             :  ****************************************************************************/
      14             : 
      15             : #ifndef OGR_GEOS_H_INCLUDED
      16             : #define OGR_GEOS_H_INCLUDED
      17             : 
      18             : #ifdef HAVE_GEOS
      19             : // To avoid accidental use of non reentrant GEOS API.
      20             : // (check only effective in GEOS >= 3.5)
      21             : #define GEOS_USE_ONLY_R_API
      22             : 
      23             : #include <geos_c.h>
      24             : 
      25             : struct GDALGEOSProgressUserData
      26             : {
      27         642 :     explicit GDALGEOSProgressUserData(GDALProgressFunc pfnProgress,
      28             :                                       void *pProgressData)
      29         642 :         : m_pfnProgress(pfnProgress), m_pProgressData(pProgressData),
      30         642 :           m_bRequestedInterrupt(false)
      31             :     {
      32         642 :     }
      33             : 
      34             :     GDALProgressFunc m_pfnProgress;
      35             :     void *m_pProgressData;
      36             :     bool m_bRequestedInterrupt;
      37             : 
      38             :     CPL_DISALLOW_COPY_ASSIGN(GDALGEOSProgressUserData)
      39             : };
      40             : 
      41             : /** Class that automatically registers progress/interrupt handlers with GEOS on
      42             :  *  initialization and unregisters them upon destruction. If GDAL is built
      43             :  *  against a version of GEOS that does not support progress/interrupt handlers,
      44             :  *  no action will be taken on initialization/destruction.
      45             :  */
      46             : class GDALGEOSProgressReporter
      47             : {
      48             :   public:
      49             :     GDALGEOSProgressReporter(GEOSContextHandle_t hGEOSCtxt,
      50             :                              GDALProgressFunc pfnProgress, void *pProgressData);
      51             :     ~GDALGEOSProgressReporter();
      52             :     GEOSContextHandle_t m_context;
      53             :     GDALGEOSProgressUserData m_userData;
      54             : 
      55             :     CPL_DISALLOW_COPY_ASSIGN(GDALGEOSProgressReporter)
      56             : };
      57             : 
      58             : void GDALGEOSProgress(double frac, const char *message, void *userData);
      59             : int GDALGEOSCheckInterrupt(void *userData);
      60             : 
      61             : #else
      62             : 
      63             : namespace geos
      64             : {
      65             : class Geometry;
      66             : }
      67             : 
      68             : #endif
      69             : 
      70             : #endif /* ndef OGR_GEOS_H_INCLUDED */