Move datum transform structs out to their own header, to avoid

need to include private header file

python/core/core_auto.sip

@@ -30,6 +30,7 @@
 %Include qgsdataitemproviderregistry.sip
 %Include qgsdatasourceuri.sip
 %Include qgsdatetimestatisticalsummary.sip
+%Include qgsdatumtransform.sip
 %Include qgsdbfilterproxymodel.sip
 %Include qgsdefaultvalue.sip
 %Include qgsdiagramrenderer.sip

python/core/qgscoordinatetransform.sip

@@ -254,36 +254,7 @@ otherwise points are transformed from destination to source CRS.
 Returns true if the transform short circuits because the source and destination are equivalent.
 %End
 
-    struct TransformPair
-    {
-
-      TransformPair( int sourceTransformId = -1, int destinationTransformId = -1 );
-%Docstring
-Constructor for a TransformPair with the specified ``sourceTransformId``
-and ``destinationTransformId`` transforms.
-%End
-
-      int sourceTransformId;
-%Docstring
-ID for the datum transform to use when projecting from the source CRS.
-
-.. seealso:: :py:func:`QgsCoordinateTransform.datumTransformCrsInfo()`
-%End
-
-      int destinationTransformId;
-%Docstring
-ID for the datum transform to use when projecting to the destination CRS.
-
-.. seealso:: :py:func:`QgsCoordinateTransform.datumTransformCrsInfo()`
-%End
-
-      bool operator==( const QgsCoordinateTransform::TransformPair &other ) const;
-
-      bool operator!=( const QgsCoordinateTransform::TransformPair &other ) const;
-
-    };
-
-    static QList< QgsCoordinateTransform::TransformPair > datumTransformations( const QgsCoordinateReferenceSystem &source, const QgsCoordinateReferenceSystem &destination );
+    static QList< QgsDatumTransform::TransformPair > datumTransformations( const QgsCoordinateReferenceSystem &source, const QgsCoordinateReferenceSystem &destination );
 %Docstring
 Returns a list of datum transformations which are available for the given ``source`` and ``destination`` CRS.
 
@@ -313,61 +284,7 @@ Returns -1 if matching datum ID was not found.
 .. versionadded:: 3.0
 %End
 
-    struct TransformInfo
-    {
-      int datumTransformId;
-%Docstring
-Datum transform ID
-%End
-
-      int epsgCode;
-%Docstring
-EPSG code for the transform, or 0 if not found in EPSG database
-%End
-
-      QString sourceCrsAuthId;
-%Docstring
-Source CRS auth ID
-%End
-
-      QString destinationCrsAuthId;
-%Docstring
-Destination CRS auth ID
-%End
-
-      QString sourceCrsDescription;
-%Docstring
-Source CRS description
-%End
-
-      QString destinationCrsDescription;
-%Docstring
-Destination CRS description
-%End
-
-      QString remarks;
-%Docstring
-Transform remarks
-%End
-
-      QString scope;
-%Docstring
-Scope of transform
-%End
-
-      bool preferred;
-%Docstring
-True if transform is the preferred transform to use for the source/destination CRS combination
-%End
-
-      bool deprecated;
-%Docstring
-True if transform is deprecated
-%End
-
-    };
-
-    static QgsCoordinateTransform::TransformInfo datumTransformInfo( int datumTransformId );
+    static QgsDatumTransform::TransformInfo datumTransformInfo( int datumTransformId );
 %Docstring
 Returns detailed information about the specified ``datumTransformId``.
 If ``datumTransformId`` was not a valid transform ID, a TransformInfo with TransformInfo.datumTransformId of

python/core/qgscoordinatetransformcontext.sip

@@ -65,7 +65,7 @@ Clears all stored transform information from the context.
 
 
 
-    QMap< QPair< QString, QString>, QgsCoordinateTransform::TransformPair > sourceDestinationDatumTransforms() const;
+    QMap< QPair< QString, QString>, QgsDatumTransform::TransformPair > sourceDestinationDatumTransforms() const;
 %Docstring
 Returns the stored mapping for source to destination CRS pairs to associated datum transforms to use.
 The map keys will be QgsCoordinateReferenceSystems.authid()s.
@@ -123,7 +123,7 @@ when transforming from the specified ``source`` CRS to ``destination`` CRS.
    source and destination are reversible.
 %End
 
-    QgsCoordinateTransform::TransformPair calculateDatumTransforms( const QgsCoordinateReferenceSystem &source,
+    QgsDatumTransform::TransformPair calculateDatumTransforms( const QgsCoordinateReferenceSystem &source,
         const QgsCoordinateReferenceSystem &destination ) const;
 %Docstring
 Returns the pair of source and destination datum transforms to use

python/core/qgsdatumtransform.sip

@@ -0,0 +1,114 @@
+/************************************************************************
+ * This file has been generated automatically from                      *
+ *                                                                      *
+ * src/core/qgsdatumtransform.h                                         *
+ *                                                                      *
+ * Do not edit manually ! Edit header and run scripts/sipify.pl again   *
+ ************************************************************************/
+
+
+
+class QgsDatumTransform
+{
+%Docstring
+Contains methods and classes relating the datum transformations.
+
+.. versionadded:: 3.0
+%End
+
+%TypeHeaderCode
+#include "qgsdatumtransform.h"
+%End
+  public:
+
+    struct TransformPair
+    {
+
+      TransformPair( int sourceTransformId = -1, int destinationTransformId = -1 );
+%Docstring
+Constructor for a TransformPair with the specified ``sourceTransformId``
+and ``destinationTransformId`` transforms.
+%End
+
+      int sourceTransformId;
+%Docstring
+ID for the datum transform to use when projecting from the source CRS.
+
+.. seealso:: :py:func:`QgsCoordinateTransform.datumTransformCrsInfo()`
+%End
+
+      int destinationTransformId;
+%Docstring
+ID for the datum transform to use when projecting to the destination CRS.
+
+.. seealso:: :py:func:`QgsCoordinateTransform.datumTransformCrsInfo()`
+%End
+
+      bool operator==( const QgsDatumTransform::TransformPair &other ) const;
+
+      bool operator!=( const QgsDatumTransform::TransformPair &other ) const;
+
+    };
+
+    struct TransformInfo
+    {
+      int datumTransformId;
+%Docstring
+Datum transform ID
+%End
+
+      int epsgCode;
+%Docstring
+EPSG code for the transform, or 0 if not found in EPSG database
+%End
+
+      QString sourceCrsAuthId;
+%Docstring
+Source CRS auth ID
+%End
+
+      QString destinationCrsAuthId;
+%Docstring
+Destination CRS auth ID
+%End
+
+      QString sourceCrsDescription;
+%Docstring
+Source CRS description
+%End
+
+      QString destinationCrsDescription;
+%Docstring
+Destination CRS description
+%End
+
+      QString remarks;
+%Docstring
+Transform remarks
+%End
+
+      QString scope;
+%Docstring
+Scope of transform
+%End
+
+      bool preferred;
+%Docstring
+True if transform is the preferred transform to use for the source/destination CRS combination
+%End
+
+      bool deprecated;
+%Docstring
+True if transform is deprecated
+%End
+
+    };
+};
+
+/************************************************************************
+ * This file has been generated automatically from                      *
+ *                                                                      *
+ * src/core/qgsdatumtransform.h                                         *
+ *                                                                      *
+ * Do not edit manually ! Edit header and run scripts/sipify.pl again   *
+ ************************************************************************/

src/app/qgsdatumtransformtablewidget.cpp

@@ -85,7 +85,7 @@ QVariant QgsDatumTransformTableModel::data( const QModelIndex &index, int role )
     QPair< QString, QString> crses = mTransformContext.sourceDestinationDatumTransforms().keys().at( index.row() );
     sourceCrs = crses.first;
     destinationCrs = crses.second;
-    const QgsCoordinateTransform::TransformPair transforms = mTransformContext.sourceDestinationDatumTransforms().value( crses );
+    const QgsDatumTransform::TransformPair transforms = mTransformContext.sourceDestinationDatumTransforms().value( crses );
     sourceTransform = transforms.sourceTransformId;
     destinationTransform = transforms.destinationTransformId;
 #ifdef singlesourcedest

src/core/CMakeLists.txt

@@ -854,14 +854,14 @@ SET(QGIS_CORE_HDRS
   qgscoordinateformatter.h
   qgscoordinatetransform.h
   qgscoordinatetransformcontext.h
-  qgscoordinatetransformcontext_p.h
   qgscoordinateutils.h
   qgsdartmeasurement.h
   qgsdatadefinedsizelegend.h
   qgsdataitemprovider.h
   qgsdataitemproviderregistry.h
   qgsdatasourceuri.h
   qgsdatetimestatisticalsummary.h
+  qgsdatumtransform.h
   qgsdbfilterproxymodel.h
   qgsdefaultvalue.h
   qgsdiagramrenderer.h

src/core/qgscoordinatetransform.cpp

@@ -691,9 +691,9 @@ const char *finder( const char *name )
 
 
 
-QList< QgsCoordinateTransform::TransformPair > QgsCoordinateTransform::datumTransformations( const QgsCoordinateReferenceSystem &srcCRS, const QgsCoordinateReferenceSystem &destCRS )
+QList< QgsDatumTransform::TransformPair > QgsCoordinateTransform::datumTransformations( const QgsCoordinateReferenceSystem &srcCRS, const QgsCoordinateReferenceSystem &destCRS )
 {
-  QList< QgsCoordinateTransform::TransformPair > transformations;
+  QList< QgsDatumTransform::TransformPair > transformations;
 
   QString srcGeoId = srcCRS.geographicCrsAuthId();
   QString destGeoId = destCRS.geographicCrsAuthId();
@@ -735,20 +735,20 @@ QList< QgsCoordinateTransform::TransformPair > QgsCoordinateTransform::datumTran
   //add direct datum transformations
   for ( int transform : qgis::as_const( directTransforms ) )
   {
-    transformations.push_back( TransformPair( transform, -1 ) );
+    transformations.push_back( QgsDatumTransform::TransformPair( transform, -1 ) );
   }
 
   //add direct datum transformations
   for ( int transform : qgis::as_const( directTransforms ) )
   {
-    transformations.push_back( TransformPair( -1, transform ) );
+    transformations.push_back( QgsDatumTransform::TransformPair( -1, transform ) );
   }
 
   for ( int srcTransform : qgis::as_const( srcToWgs84 ) )
   {
     for ( int destTransform : qgis::as_const( destToWgs84 ) )
     {
-      transformations.push_back( TransformPair( srcTransform, destTransform ) );
+      transformations.push_back( QgsDatumTransform::TransformPair( srcTransform, destTransform ) );
     }
   }
 
@@ -821,9 +821,9 @@ int QgsCoordinateTransform::projStringToDatumTransformId( const QString &string
   return QgsCoordinateTransformPrivate::transformIdFromString( string );
 }
 
-QgsCoordinateTransform::TransformInfo QgsCoordinateTransform::datumTransformInfo( int datumTransform )
+QgsDatumTransform::TransformInfo QgsCoordinateTransform::datumTransformInfo( int datumTransform )
 {
-  TransformInfo info;
+  QgsDatumTransform::TransformInfo info;
 
   sqlite3_database_unique_ptr database;
   int openResult = database.open_v2( QgsApplication::srsDatabaseFilePath(), SQLITE_OPEN_READONLY, nullptr );