/src/gdal/ogr/ogrgeomfielddefn.cpp

Source
/******************************************************************************
 *
 * Project:  OpenGIS Simple Features Reference Implementation
 * Purpose:  The OGRGeomFieldDefn class implementation.
 * Author:   Even Rouault, <even dot rouault at spatialys.com>
 *
 ******************************************************************************
 * Copyright (c) 2013, Even Rouault <even dot rouault at spatialys.com>
 *
 * SPDX-License-Identifier: MIT
 ****************************************************************************/

#include "cpl_port.h"
#include "ogr_api.h"

#include <cstring>

#include "cpl_conv.h"
#include "cpl_error.h"
#include "ogr_core.h"
#include "ogr_feature.h"
#include "ogr_p.h"
#include "ogr_spatialref.h"
#include "ogr_srs_api.h"
#include "ograpispy.h"

/************************************************************************/
/*                          OGRGeomFieldDefn()                          */
/************************************************************************/

/**
 * \brief Constructor.
 *
 * @param pszNameIn the name of the new field.
 * @param eGeomTypeIn the type of the new field.
 *
 */

OGRGeomFieldDefn::OGRGeomFieldDefn(const char *pszNameIn,
                                   OGRwkbGeometryType eGeomTypeIn)

{
    Initialize(pszNameIn, eGeomTypeIn);
}

/************************************************************************/
/*                          OGRGeomFieldDefn()                          */
/************************************************************************/

/**
 * \brief Constructor.
 *
 * Create by cloning an existing geometry field definition.
 *
 * @param poPrototype the geometry field definition to clone.
 *
 */

OGRGeomFieldDefn::OGRGeomFieldDefn(const OGRGeomFieldDefn *poPrototype)
    : OGRGeomFieldDefn(*poPrototype)

{
}

/************************************************************************/
/*                          OGR_GFld_Create()                           */
/************************************************************************/
/**
 * \brief Create a new field geometry definition.
 *
 * This function is the same as the CPP method
 * OGRGeomFieldDefn::OGRGeomFieldDefn().
 *
 * @param pszName the name of the new field definition.
 * @param eType the type of the new field definition.
 * @return handle to the new field definition.
 *
 */

OGRGeomFieldDefnH OGR_GFld_Create(const char *pszName, OGRwkbGeometryType eType)

{
    return OGRGeomFieldDefn::ToHandle(new OGRGeomFieldDefn(pszName, eType));
}

/************************************************************************/
/*                             Initialize()                             */
/************************************************************************/

//! @cond Doxygen_Suppress
void OGRGeomFieldDefn::Initialize(const char *pszNameIn,
                                  OGRwkbGeometryType eTypeIn)

{
    pszName = CPLStrdup(pszNameIn);
    eGeomType = eTypeIn;
}

//! @endcond

/************************************************************************/
/*                         ~OGRGeomFieldDefn()                          */
/************************************************************************/

OGRGeomFieldDefn::~OGRGeomFieldDefn()

{
    CPLFree(pszName);
}

/************************************************************************/
/*                 OGRGeomFieldDefn::OGRGeomFieldDefn()                 */
/************************************************************************/

/**
 * @brief Copy constructor
 * @param oOther the OGRGeomFieldDefn to copy.
 * @since GDAL 3.11
 */
OGRGeomFieldDefn::OGRGeomFieldDefn(const OGRGeomFieldDefn &oOther)
    : pszName(CPLStrdup(oOther.pszName)), eGeomType(oOther.eGeomType),
      poSRS(oOther.GetRefCountedSRS()), bIgnore(oOther.bIgnore),
      bNullable(oOther.bNullable), m_bSealed(false),
      m_oCoordPrecision(oOther.m_oCoordPrecision)
{
}

/************************************************************************/
/*                 OGRGeomFieldDefn::OGRGeomFieldDefn()                 */
/************************************************************************/

/**
 * @brief Move constructor
 * @param oOther the OGRGeomFieldDefn to move.
 * @since GDAL 3.13
 */
OGRGeomFieldDefn::OGRGeomFieldDefn(OGRGeomFieldDefn &&oOther)
    : pszName(oOther.pszName), eGeomType(oOther.eGeomType),
      poSRS(std::move(oOther.GetRefCountedSRS())), bIgnore(oOther.bIgnore),
      bNullable(oOther.bNullable), m_bSealed(oOther.m_bSealed),
      m_oCoordPrecision(oOther.m_oCoordPrecision)
{
    oOther.pszName = nullptr;
}

/************************************************************************/
/*                    OGRGeomFieldDefn::operator=()                     */
/************************************************************************/

/**
 * Copy assignment operator
 * @param oOther the OGRGeomFieldDefn to copy.
 * @return a reference to the current object.
 * @since GDAL 3.11
 */
OGRGeomFieldDefn &OGRGeomFieldDefn::operator=(const OGRGeomFieldDefn &oOther)
{
    if (&oOther != this)
    {
        CPLFree(pszName);
        pszName = CPLStrdup(oOther.pszName);
        eGeomType = oOther.eGeomType;
        poSRS = oOther.GetRefCountedSRS();
        bNullable = oOther.bNullable;
        m_oCoordPrecision = oOther.m_oCoordPrecision;
        m_bSealed = oOther.m_bSealed;
        bIgnore = oOther.bIgnore;
    }
    return *this;
}

/************************************************************************/
/*                    OGRGeomFieldDefn::operator=()                     */
/************************************************************************/

/**
 * Move assignment operator
 * @param oOther the OGRGeomFieldDefn to move.
 * @return a reference to the current object.
 * @since GDAL 3.13
 */
OGRGeomFieldDefn &OGRGeomFieldDefn::operator=(OGRGeomFieldDefn &&oOther)
{
    if (&oOther != this)
    {
        std::swap(pszName, oOther.pszName);
        eGeomType = oOther.eGeomType;
        std::swap(poSRS, oOther.GetRefCountedSRS());
        bNullable = oOther.bNullable;
        m_oCoordPrecision = oOther.m_oCoordPrecision;
        m_bSealed = oOther.m_bSealed;
        bIgnore = oOther.bIgnore;
    }
    return *this;
}

/************************************************************************/
/*                          OGR_GFld_Destroy()                          */
/************************************************************************/
/**
 * \brief Destroy a geometry field definition.
 *
 * @param hDefn handle to the geometry field definition to destroy.
 *
 */

void OGR_GFld_Destroy(OGRGeomFieldDefnH hDefn)

{
    VALIDATE_POINTER0(hDefn, "OGR_GFld_Destroy");

    delete OGRGeomFieldDefn::FromHandle(hDefn);
}

/************************************************************************/
/*                              SetName()                               */
/************************************************************************/

/**
 * \brief Reset the name of this field.
 *
 * This method is the same as the C function OGR_GFld_SetName().
 *
 * Note that once a OGRGeomFieldDefn has been added to a layer definition with
 * OGRLayer::AddGeomFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn() const->GetGeomFieldDefn(). Instead,
 * OGRLayer::AlterGeomFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn().
 *
 * @param pszNameIn the new name to apply.
 *
 */

void OGRGeomFieldDefn::SetName(const char *pszNameIn)

{
    if (m_bSealed)
    {
        CPLError(CE_Failure, CPLE_AppDefined,
                 "OGRGeomFieldDefn::SetName() not allowed on a sealed object");
        return;
    }
    if (pszName != pszNameIn)
    {
        CPLFree(pszName);
        pszName = CPLStrdup(pszNameIn);
    }
}

/************************************************************************/
/*                          OGR_GFld_SetName()                          */
/************************************************************************/
/**
 * \brief Reset the name of this field.
 *
 * This function is the same as the CPP method OGRGeomFieldDefn::SetName().
 *
 * Note that once a OGRGeomFieldDefn has been added to a layer definition with
 * OGRLayer::AddGeomFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn() const->GetGeomFieldDefn(). Instead,
 * OGRLayer::AlterGeomFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn().
 *
 * @param hDefn handle to the geometry field definition to apply the
 * new name to.
 * @param pszName the new name to apply.
 *
 */

void OGR_GFld_SetName(OGRGeomFieldDefnH hDefn, const char *pszName)

{
    VALIDATE_POINTER0(hDefn, "OGR_GFld_SetName");

    OGRGeomFieldDefn::FromHandle(hDefn)->SetName(pszName);
}

/************************************************************************/
/*                             GetNameRef()                             */
/************************************************************************/

/**
 * \fn const char *OGRGeomFieldDefn::GetNameRef();
 *
 * \brief Fetch name of this field.
 *
 * This method is the same as the C function OGR_GFld_GetNameRef().
 *
 * @return pointer to an internal name string that should not be freed or
 * modified.
 *
 */

/************************************************************************/
/*                        OGR_GFld_GetNameRef()                         */
/************************************************************************/
/**
 * \brief Fetch name of this field.
 *
 * This function is the same as the CPP method OGRGeomFieldDefn::GetNameRef().
 *
 * @param hDefn handle to the geometry field definition.
 * @return the name of the geometry field definition.
 *
 */

const char *OGR_GFld_GetNameRef(OGRGeomFieldDefnH hDefn)

{
    VALIDATE_POINTER1(hDefn, "OGR_GFld_GetNameRef", "");

#ifdef OGRAPISPY_ENABLED
    if (bOGRAPISpyEnabled)
        OGRAPISpy_GFld_GetXXXX(hDefn, "GetNameRef");
#endif

    return OGRGeomFieldDefn::FromHandle(hDefn)->GetNameRef();
}

/************************************************************************/
/*                              GetType()                               */
/************************************************************************/

/**
 * \fn OGRwkbGeometryType OGRGeomFieldDefn::GetType() const;
 *
 * \brief Fetch geometry type of this field.
 *
 * This method is the same as the C function OGR_GFld_GetType().
 *
 * @return field geometry type.
 *
 */

/************************************************************************/
/*                          OGR_GFld_GetType()                          */
/************************************************************************/
/**
 * \brief Fetch geometry type of this field.
 *
 * This function is the same as the CPP method OGRGeomFieldDefn::GetType().
 *
 * @param hDefn handle to the geometry field definition to get type from.
 * @return field geometry type.
 *
 */

OGRwkbGeometryType OGR_GFld_GetType(OGRGeomFieldDefnH hDefn)

{
    VALIDATE_POINTER1(hDefn, "OGR_GFld_GetType", wkbUnknown);

#ifdef OGRAPISPY_ENABLED
    if (bOGRAPISpyEnabled)
        OGRAPISpy_GFld_GetXXXX(hDefn, "GetType");
#endif

    OGRwkbGeometryType eType = OGRGeomFieldDefn::FromHandle(hDefn)->GetType();
    if (OGR_GT_IsNonLinear(eType) && !OGRGetNonLinearGeometriesEnabledFlag())
    {
        eType = OGR_GT_GetLinear(eType);
    }
    return eType;
}

/************************************************************************/
/*                              SetType()                               */
/************************************************************************/

/**
 * \brief Set the geometry type of this field.
 * This should never be done to an OGRGeomFieldDefn
 * that is already part of an OGRFeatureDefn.
 *
 * This method is the same as the C function OGR_GFld_SetType().
 *
 * Note that once a OGRGeomFieldDefn has been added to a layer definition with
 * OGRLayer::AddGeomFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn() const->GetGeomFieldDefn(). Instead,
 * OGRLayer::AlterGeomFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn().
 *
 * @param eTypeIn the new field geometry type.
 *
 */

void OGRGeomFieldDefn::SetType(OGRwkbGeometryType eTypeIn)

{
    if (m_bSealed)
    {
        CPLError(CE_Failure, CPLE_AppDefined,
                 "OGRGeomFieldDefn::SetType() not allowed on a sealed object");
        return;
    }
    eGeomType = eTypeIn;
}

/************************************************************************/
/*                          OGR_GFld_SetType()                          */
/************************************************************************/
/**
 * \brief Set the geometry type of this field.
 * This should never be done to an OGRGeomFieldDefn
 * that is already part of an OGRFeatureDefn.
 *
 * This function is the same as the CPP method OGRGeomFieldDefn::SetType().
 *
 * Note that once a OGRGeomFieldDefn has been added to a layer definition with
 * OGRLayer::AddGeomFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn() const->GetGeomFieldDefn(). Instead,
 * OGRLayer::AlterGeomFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn().
 *
 * @param hDefn handle to the geometry field definition to set type to.
 * @param eType the new field geometry type.
 *
 */

void OGR_GFld_SetType(OGRGeomFieldDefnH hDefn, OGRwkbGeometryType eType)

{
    VALIDATE_POINTER0(hDefn, "OGR_GFld_SetType");

    OGRGeomFieldDefn::FromHandle(hDefn)->SetType(eType);
}

/************************************************************************/
/*                             IsIgnored()                              */
/************************************************************************/

/**
 * \fn int OGRGeomFieldDefn::IsIgnored() const;
 *
 * \brief Return whether this field should be omitted when fetching features
 *
 * This method is the same as the C function OGR_GFld_IsIgnored().
 *
 * @return ignore state
 *
 */

/************************************************************************/
/*                         OGR_GFld_IsIgnored()                         */
/************************************************************************/

/**
 * \brief Return whether this field should be omitted when fetching features
 *
 * This method is the same as the C++ method OGRGeomFieldDefn::IsIgnored().
 *
 * @param hDefn handle to the geometry field definition
 * @return ignore state
 *
 */

int OGR_GFld_IsIgnored(OGRGeomFieldDefnH hDefn)
{
    VALIDATE_POINTER1(hDefn, "OGR_GFld_IsIgnored", FALSE);

    return OGRGeomFieldDefn::FromHandle(hDefn)->IsIgnored();
}

/************************************************************************/
/*                             SetIgnored()                             */
/************************************************************************/

/**
 * \fn void OGRGeomFieldDefn::SetIgnored( int ignore );
 *
 * \brief Set whether this field should be omitted when fetching features
 *
 * This method is the same as the C function OGR_GFld_SetIgnored().
 *
 * This method should not be called on a object returned with
 * OGRLayer::GetLayerDefn() const->GetGeomFieldDefn(). Instead, the
 * OGRLayer::SetIgnoredFields() method should be called.
 *
 * @param ignore ignore state
 *
 */

/************************************************************************/
/*                        OGR_GFld_SetIgnored()                         */
/************************************************************************/

/**
 * \brief Set whether this field should be omitted when fetching features
 *
 * This method is the same as the C++ method OGRGeomFieldDefn::SetIgnored().
 *
 * This method should not be called on a object returned with
 * OGRLayer::GetLayerDefn() const->GetGeomFieldDefn(). Instead, the
 * OGRLayer::SetIgnoredFields() method should be called.
 *
 * @param hDefn handle to the geometry field definition
 * @param ignore ignore state
 *
 */

void OGR_GFld_SetIgnored(OGRGeomFieldDefnH hDefn, int ignore)
{
    VALIDATE_POINTER0(hDefn, "OGR_GFld_SetIgnored");

    OGRGeomFieldDefn::FromHandle(hDefn)->SetIgnored(ignore);
}

/************************************************************************/
/*                           GetSpatialRef()                            */
/************************************************************************/
/**
 * \brief Fetch spatial reference system of this field.
 *
 * This method is the same as the C function OGR_GFld_GetSpatialRef().
 *
 * @return field spatial reference system.
 *
 */

const OGRSpatialReference *OGRGeomFieldDefn::GetSpatialRef() const
{
    return poSRS.get();
}

/************************************************************************/
/*                       OGR_GFld_GetSpatialRef()                       */
/************************************************************************/

/**
 * \brief Fetch spatial reference system of this field.
 *
 * This function is the same as the C++ method
 * OGRGeomFieldDefn::GetSpatialRef().
 *
 * @param hDefn handle to the geometry field definition
 *
 * @return a reference to the field spatial reference system.
 * It should not be modified.
 *
 */

OGRSpatialReferenceH OGR_GFld_GetSpatialRef(OGRGeomFieldDefnH hDefn)
{
    VALIDATE_POINTER1(hDefn, "OGR_GFld_GetSpatialRef", nullptr);

#ifdef OGRAPISPY_ENABLED
    if (bOGRAPISpyEnabled)
        OGRAPISpy_GFld_GetXXXX(hDefn, "GetSpatialRef");
#endif

    return OGRSpatialReference::ToHandle(const_cast<OGRSpatialReference *>(
        OGRGeomFieldDefn::FromHandle(hDefn)->GetSpatialRef()));
}

/************************************************************************/
/*                           SetSpatialRef()                            */
/************************************************************************/

/**
 * \brief Set the spatial reference of this field.
 *
 * This method is the same as the C function OGR_GFld_SetSpatialRef().
 *
 * This method drops the reference of the previously set SRS object and
 * acquires a new reference on the passed object (if non-NULL).
 *
 * Note that once a OGRGeomFieldDefn has been added to a layer definition with
 * OGRLayer::AddGeomFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn() const->GetGeomFieldDefn(). Instead,
 * OGRLayer::AlterGeomFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn().
 *
 * @param poSRSIn the new SRS to apply.
 *
 */
void OGRGeomFieldDefn::SetSpatialRef(const OGRSpatialReference *poSRSIn)
{

    if (m_bSealed)
    {
        CPLError(
            CE_Failure, CPLE_AppDefined,
            "OGRGeomFieldDefn::SetSpatialRef() not allowed on a sealed object");
        return;
    }

    poSRS.reset(const_cast<OGRSpatialReference *>(poSRSIn), /*add_ref=*/true);
}

/************************************************************************/
/*                           SetSpatialRef()                            */
/************************************************************************/

/**
 * \brief Set the spatial reference of this field.
 *
 * This method drops the reference of the previously set SRS object and
 * acquires a new reference on the passed object (if non-NULL).
 *
 * Note that once a OGRGeomFieldDefn has been added to a layer definition with
 * OGRLayer::AddGeomFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn() const->GetGeomFieldDefn(). Instead,
 * OGRLayer::AlterGeomFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn().
 *
 * @param poSRSIn the new SRS to apply.
 *
 * @since 3.13
 */
void OGRGeomFieldDefn::SetSpatialRef(OGRSpatialReferenceRefCountedPtr poSRSIn)
{
    if (m_bSealed)
    {
        CPLError(
            CE_Failure, CPLE_AppDefined,
            "OGRGeomFieldDefn::SetSpatialRef() not allowed on a sealed object");
        return;
    }

    poSRS = std::move(poSRSIn);
}

/************************************************************************/
/*                       OGR_GFld_SetSpatialRef()                       */
/************************************************************************/

/**
 * \brief Set the spatial reference of this field.
 *
 * This function is the same as the C++ method
 * OGRGeomFieldDefn::SetSpatialRef().
 *
 * This function drops the reference of the previously set SRS object and
 * acquires a new reference on the passed object (if non-NULL).
 *
 * Note that once a OGRGeomFieldDefn has been added to a layer definition with
 * OGRLayer::AddGeomFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn() const->GetGeomFieldDefn(). Instead,
 * OGRLayer::AlterGeomFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn().
 *
 * @param hDefn handle to the geometry field definition
 * @param hSRS the new SRS to apply.
 *
 */

void OGR_GFld_SetSpatialRef(OGRGeomFieldDefnH hDefn, OGRSpatialReferenceH hSRS)
{
    VALIDATE_POINTER0(hDefn, "OGR_GFld_SetSpatialRef");

    OGRGeomFieldDefn::FromHandle(hDefn)->SetSpatialRef(
        reinterpret_cast<OGRSpatialReference *>(hSRS));
}

/************************************************************************/
/*                               IsSame()                               */
/************************************************************************/

/**
 * \brief Test if the geometry field definition is identical to the other one.
 *
 * @param poOtherFieldDefn the other field definition to compare to.
 * @return TRUE if the geometry field definition is identical to the other one.
 *
 */

int OGRGeomFieldDefn::IsSame(const OGRGeomFieldDefn *poOtherFieldDefn) const
{
    if (!(strcmp(GetNameRef(), poOtherFieldDefn->GetNameRef()) == 0 &&
          GetType() == poOtherFieldDefn->GetType() &&
          IsNullable() == poOtherFieldDefn->IsNullable() &&
          m_oCoordPrecision.dfXYResolution ==
              poOtherFieldDefn->m_oCoordPrecision.dfXYResolution &&
          m_oCoordPrecision.dfZResolution ==
              poOtherFieldDefn->m_oCoordPrecision.dfZResolution &&
          m_oCoordPrecision.dfMResolution ==
              poOtherFieldDefn->m_oCoordPrecision.dfMResolution))
        return FALSE;
    const OGRSpatialReference *poMySRS = GetSpatialRef();
    const OGRSpatialReference *poOtherSRS = poOtherFieldDefn->GetSpatialRef();
    return ((poMySRS == poOtherSRS) ||
            (poMySRS != nullptr && poOtherSRS != nullptr &&
             poMySRS->IsSame(poOtherSRS)));
}

/************************************************************************/
/*                             IsNullable()                             */
/************************************************************************/

/**
 * \fn int OGRGeomFieldDefn::IsNullable() const
 *
 * \brief Return whether this geometry field can receive null values.
 *
 * By default, fields are nullable.
 *
 * Even if this method returns FALSE (i.e not-nullable field), it doesn't mean
 * that OGRFeature::IsFieldSet() will necessary return TRUE, as fields can be
 * temporary unset and null/not-null validation is usually done when
 * OGRLayer::CreateFeature()/SetFeature() is called.
 *
 * Note that not-nullable geometry fields might also contain 'empty' geometries.
 *
 * This method is the same as the C function OGR_GFld_IsNullable().
 *
 * @return TRUE if the field is authorized to be null.
 */

/************************************************************************/
/*                        OGR_GFld_IsNullable()                         */
/************************************************************************/

/**
 * \brief Return whether this geometry field can receive null values.
 *
 * By default, fields are nullable.
 *
 * Even if this method returns FALSE (i.e not-nullable field), it doesn't mean
 * that OGRFeature::IsFieldSet() will necessary return TRUE, as fields can be
 * temporary unset and null/not-null validation is usually done when
 * OGRLayer::CreateFeature()/SetFeature() is called.
 *
 * Note that not-nullable geometry fields might also contain 'empty' geometries.
 *
 * This method is the same as the C++ method OGRGeomFieldDefn::IsNullable().
 *
 * Note that once a OGRGeomFieldDefn has been added to a layer definition with
 * OGRLayer::AddGeomFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn() const->GetGeomFieldDefn(). Instead,
 * OGRLayer::AlterGeomFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn().
 *
 * @param hDefn handle to the field definition
 * @return TRUE if the field is authorized to be null.
 */

int OGR_GFld_IsNullable(OGRGeomFieldDefnH hDefn)
{
    return OGRGeomFieldDefn::FromHandle(hDefn)->IsNullable();
}

/************************************************************************/
/*                            SetNullable()                             */
/************************************************************************/

/**
 * \fn void OGRGeomFieldDefn::SetNullable( int bNullableIn );
 *
 * \brief Set whether this geometry field can receive null values.
 *
 * By default, fields are nullable, so this method is generally called with
 * FALSE to set a not-null constraint.
 *
 * Drivers that support writing not-null constraint will advertise the
 * GDAL_DCAP_NOTNULL_GEOMFIELDS driver metadata item.
 *
 * This method is the same as the C function OGR_GFld_SetNullable().
 *
 * Note that once a OGRGeomFieldDefn has been added to a layer definition with
 * OGRLayer::AddGeomFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn() const->GetGeomFieldDefn(). Instead,
 * OGRLayer::AlterGeomFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn().
 *
 * @param bNullableIn FALSE if the field must have a not-null constraint.
 */
void OGRGeomFieldDefn::SetNullable(int bNullableIn)
{
    if (m_bSealed)
    {
        CPLError(
            CE_Failure, CPLE_AppDefined,
            "OGRGeomFieldDefn::SetNullable() not allowed on a sealed object");
        return;
    }
    bNullable = bNullableIn;
}

/************************************************************************/
/*                        OGR_GFld_SetNullable()                        */
/************************************************************************/

/**
 * \brief Set whether this geometry field can receive null values.
 *
 * By default, fields are nullable, so this method is generally called with
 * FALSE to set a not-null constraint.
 *
 * Drivers that support writing not-null constraint will advertise the
 * GDAL_DCAP_NOTNULL_GEOMFIELDS driver metadata item.
 *
 * This method is the same as the C++ method OGRGeomFieldDefn::SetNullable().
 *
 * @param hDefn handle to the field definition
 * @param bNullableIn FALSE if the field must have a not-null constraint.
 */

void OGR_GFld_SetNullable(OGRGeomFieldDefnH hDefn, int bNullableIn)
{
    OGRGeomFieldDefn::FromHandle(hDefn)->SetNullable(bNullableIn);
}

/************************************************************************/
/*                       GetCoordinatePrecision()                       */
/************************************************************************/

/**
 * \fn int OGRGeomFieldDefn::GetCoordinatePrecision() const
 *
 * \brief Return the coordinate precision associated to this geometry field.
 *
 * This method is the same as the C function OGR_GFld_GetCoordinatePrecision().
 *
 * @return the coordinate precision
 * @since GDAL 3.9
 */

/************************************************************************/
/*                  OGR_GFld_GetCoordinatePrecision()                   */
/************************************************************************/

/**
 * \brief Return the coordinate precision associated to this geometry field.
 *
 * This method is the same as the C++ method OGRGeomFieldDefn::GetCoordinatePrecision()
 *
 * @param hDefn handle to the field definition
 * @return the coordinate precision
 * @since GDAL 3.9
 */

OGRGeomCoordinatePrecisionH
OGR_GFld_GetCoordinatePrecision(OGRGeomFieldDefnH hDefn)
{
    return const_cast<OGRGeomCoordinatePrecision *>(
        &(OGRGeomFieldDefn::FromHandle(hDefn)->GetCoordinatePrecision()));
}

/************************************************************************/
/*                       SetCoordinatePrecision()                       */
/************************************************************************/

/**
 * \brief Set coordinate precision associated to this geometry field.
 *
 * This method is the same as the C function OGR_GFld_SetCoordinatePrecision().
 *
 * Note that once a OGRGeomFieldDefn has been added to a layer definition with
 * OGRLayer::AddGeomFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn() const->GetGeomFieldDefn().
 *
 * @param prec Coordinate precision
 * @since GDAL 3.9
 */
void OGRGeomFieldDefn::SetCoordinatePrecision(
    const OGRGeomCoordinatePrecision &prec)
{
    if (m_bSealed)
    {
        CPLError(CE_Failure, CPLE_AppDefined,
                 "OGRGeomFieldDefn::SetCoordinatePrecision() not allowed on a "
                 "sealed object");
        return;
    }
    m_oCoordPrecision = prec;
}

/************************************************************************/
/*                  OGR_GFld_SetCoordinatePrecision()                   */
/************************************************************************/

/**
 * \brief Set coordinate precision associated to this geometry field.
 *
 * This method is the same as the C++ method OGRGeomFieldDefn::SetCoordinatePrecision()
 *
 * Note that once a OGRGeomFieldDefn has been added to a layer definition with
 * OGRLayer::AddGeomFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn() const->GetGeomFieldDefn().
 *
 * @param hDefn handle to the field definition.  Must not be NULL.
 * @param hGeomCoordPrec Coordinate precision. Must not be NULL.
 * @since GDAL 3.9
 */
void OGR_GFld_SetCoordinatePrecision(OGRGeomFieldDefnH hDefn,
                                     OGRGeomCoordinatePrecisionH hGeomCoordPrec)
{
    VALIDATE_POINTER0(hGeomCoordPrec, "OGR_GFld_SetCoordinatePrecision");
    OGRGeomFieldDefn::FromHandle(hDefn)->SetCoordinatePrecision(
        *hGeomCoordPrec);
}

/************************************************************************/
/*                       OGRGeomFieldDefn::Seal()                       */
/************************************************************************/

/** Seal a OGRGeomFieldDefn.
 *
 * A sealed OGRGeomFieldDefn can not be modified while it is sealed.
 *
 * This method should only be called by driver implementations.
 *
 * @since GDAL 3.9
 */
void OGRGeomFieldDefn::Seal()
{
    m_bSealed = true;
}

/************************************************************************/
/*                      OGRGeomFieldDefn::Unseal()                      */
/************************************************************************/

/** Unseal a OGRGeomFieldDefn.
 *
 * Undo OGRGeomFieldDefn::Seal()
 *
 * Using GetTemporaryUnsealer() is recommended for most use cases.
 *
 * This method should only be called by driver implementations.
 *
 * @since GDAL 3.9
 */
void OGRGeomFieldDefn::Unseal()
{
    m_bSealed = false;
}

/************************************************************************/
/*               OGRGeomFieldDefn::GetTemporaryUnsealer()               */
/************************************************************************/

/** Return an object that temporary unseals the OGRGeomFieldDefn
 *
 * The returned object calls Unseal() initially, and when it is destroyed
 * it calls Seal().
 *
 * This method should only be called by driver implementations.
 *
 * It is also possible to use the helper method whileUnsealing(). Example:
 * whileUnsealing(poGeomFieldDefn)->some_method()
 *
 * @since GDAL 3.9
 */
OGRGeomFieldDefn::TemporaryUnsealer OGRGeomFieldDefn::GetTemporaryUnsealer()
{
    return TemporaryUnsealer(this);
}

Coverage Report

Created: 2026-07-25 06:50