fixes for position kit and coordinate transformer

Author: PeterPetrik

src/quickgui/plugin/CMakeLists.txt

@@ -109,8 +109,9 @@ IF(QMLPLUGINDUMP_FOUND)
       COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_SOURCE_DIR}/qmldir ${QGIS_QUICK_TYPEINFO_GENERATE_DIR}
       COMMAND ${CMAKE_COMMAND} -E copy $<TARGET_FILE:qgis_quick_plugin> ${QGIS_QUICK_TYPEINFO_GENERATE_DIR}
       COMMAND ${QMLPLUGINDUMP_EXECUTABLE}
-      ARGS QgsQuick ${QGIS_QUICK_VERSION} . --output ${QGIS_QUICK_PLUGIN_TYPEINFO}
+      ARGS QgsQuick ${QGIS_QUICK_VERSION} . -noinstantiate --output ${QGIS_QUICK_PLUGIN_TYPEINFO}
       WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}"
+      COMMENT "Generating qgsquick.qmltypes with qmlplugindump"
       POST_BUILD
   )
 ENDIF()

src/quickgui/plugin/qgsquickplugin.cpp

@@ -28,6 +28,7 @@
 #include "qgsrelationmanager.h"
 #include "qgscoordinatetransformcontext.h"
 #include "qgsvectorlayer.h"
+#include "qgsunittypes.h"
 
 #include "qgsquickfeaturehighlight.h"
 #include "qgsquickcoordinatetransformer.h"
@@ -60,6 +61,7 @@ void QgsQuickPlugin::registerTypes( const char *uri )
   qRegisterMetaType< QgsPoint >( "QgsPoint" );
   qRegisterMetaType< QgsPointXY >( "QgsPointXY" );
   qRegisterMetaType< QgsQuickFeatureLayerPair >( "QgsQuickFeatureLayerPair" );
+  qRegisterMetaType< QgsUnitTypes::DistanceUnit >( "QgsUnitTypes::DistanceUnit" );
 
   qmlRegisterType< QgsProject >( uri, 0, 1, "Project" );
   qmlRegisterType< QgsQuickFeatureHighlight >( uri, 0, 1, "FeatureHighlight" );

src/quickgui/plugin/qgsquickpositionmarker.qml

@@ -47,7 +47,7 @@ Item {
   /**
    * Whether circle representing accuracy of the position should be rendered.
    */
-  property var withAccuracy: true
+  property bool withAccuracy: true
 
   /**
    * Icon for position marker.

src/quickgui/qgsquickcoordinatetransformer.cpp

@@ -14,12 +14,12 @@
  ***************************************************************************/
 
 #include "qgsquickcoordinatetransformer.h"
+#include "qgslogger.h"
 
 QgsQuickCoordinateTransformer::QgsQuickCoordinateTransformer( QObject *parent )
   : QObject( parent )
 {
   mCoordinateTransform.setSourceCrs( QgsCoordinateReferenceSystem::fromEpsgId( 4326 ) );
-  mCoordinateTransform.setContext( QgsCoordinateTransformContext() );
 }
 
 QgsPoint QgsQuickCoordinateTransformer::projectedPosition() const
@@ -32,7 +32,7 @@ QgsPoint QgsQuickCoordinateTransformer::sourcePosition() const
   return mSourcePosition;
 }
 
-void QgsQuickCoordinateTransformer::setSourcePosition( QgsPoint sourcePosition )
+void QgsQuickCoordinateTransformer::setSourcePosition( const QgsPoint &sourcePosition )
 {
   if ( mSourcePosition == sourcePosition )
     return;
@@ -74,6 +74,11 @@ void QgsQuickCoordinateTransformer::setSourceCrs( const QgsCoordinateReferenceSy
   updatePosition();
 }
 
+void QgsQuickCoordinateTransformer::setTransformContext( const QgsCoordinateTransformContext &context )
+{
+  mCoordinateTransform.setContext( context );
+}
+
 void QgsQuickCoordinateTransformer::updatePosition()
 {
   double x = mSourcePosition.x();
@@ -88,10 +93,14 @@ void QgsQuickCoordinateTransformer::updatePosition()
     z = 0;
   }
 
-  if ( mMapSettings )
-    mCoordinateTransform.setContext( mMapSettings->transformContext() );
-
-  mCoordinateTransform.transformInPlace( x, y, z );
+  try
+  {
+    mCoordinateTransform.transformInPlace( x, y, z );
+  }
+  catch ( const QgsCsException &exp )
+  {
+    QgsDebugMsg( exp.what() );
+  }
 
   mProjectedPosition = QgsPoint( x, y );
   mProjectedPosition.addZValue( mSourcePosition.z() );

src/quickgui/qgsquickcoordinatetransformer.h

@@ -21,12 +21,17 @@
 #include "qgspoint.h"
 
 #include "qgis_quick.h"
-#include "qgsquickmapsettings.h"
+#include "qgscoordinatetransformcontext.h"
+#include "qgscoordinatereferencesystem.h"
+#include "qgspoint.h"
 
 /**
  * \ingroup quick
  * Helper class for transform of coordinates (QgsPoint) to a different coordinate reference system.
  *
+ * It requires connection of transformation context from mapSettings, source position and source CRS to
+ * calculate projected position in desired destination CRS
+ *
  * \note QML Type: CoordinateTransformer
  *
  * \since QGIS 3.2
@@ -47,8 +52,8 @@ class QUICK_EXPORT QgsQuickCoordinateTransformer : public QObject
     //! Source CRS, default 4326
     Q_PROPERTY( QgsCoordinateReferenceSystem sourceCrs READ sourceCrs WRITE setSourceCrs NOTIFY sourceCrsChanged )
 
-    //! Map settings, for getting transformation context
-    Q_PROPERTY( QgsQuickMapSettings *mapSettings MEMBER mMapSettings NOTIFY mapSettingsChanged )
+    //! Transformation context, can be set from QgsQuickMapSettings::transformContext()
+    Q_PROPERTY( QgsCoordinateTransformContext transformContext WRITE setTransformContext )
 
   public:
     //! Creates new coordinate transformer
@@ -61,7 +66,7 @@ class QUICK_EXPORT QgsQuickCoordinateTransformer : public QObject
     QgsPoint sourcePosition() const;
 
     //!\copydoc QgsQuickCoordinateTransformer::sourcePosition
-    void setSourcePosition( QgsPoint sourcePosition );
+    void setSourcePosition( const QgsPoint &sourcePosition );
 
     //!\copydoc QgsQuickCoordinateTransformer::destinationCrs
     QgsCoordinateReferenceSystem destinationCrs() const;
@@ -75,29 +80,31 @@ class QUICK_EXPORT QgsQuickCoordinateTransformer : public QObject
     //!\copydoc QgsQuickCoordinateTransformer::sourceCrs
     void setSourceCrs( const QgsCoordinateReferenceSystem &sourceCrs );
 
+    //!\copydoc QgsQuickCoordinateTransformer::transformContext
+    void setTransformContext( const QgsCoordinateTransformContext &context );
+
   signals:
-    //! Projected position changed
+    //!\copydoc QgsQuickCoordinateTransformer::projectedPosition
     void projectedPositionChanged();
 
-    //! Source position changed
+    //!\copydoc QgsQuickCoordinateTransformer::sourcePosition
     void sourcePositionChanged();
 
-    //! Destination CRS changed
+    //!\copydoc QgsQuickCoordinateTransformer::destinationCrs
     void destinationCrsChanged();
 
-    //! Source CRS changed
+    //!\copydoc QgsQuickCoordinateTransformer::sourceCrs
     void sourceCrsChanged();
 
-    //! Map settings changed
-    void mapSettingsChanged();
+    //!\copydoc QgsQuickCoordinateTransformer::transformContext
+    void transformContextChanged();
 
   private:
     void updatePosition();
 
     QgsPoint mProjectedPosition;
     QgsPoint mSourcePosition;
     QgsCoordinateTransform mCoordinateTransform;
-    QgsQuickMapSettings *mMapSettings = nullptr;
 };
 
 #endif // QGSQUICKCOORDINATETRANSFORMER_H