Add TODO QGIS 3 comments

src/core/geometry/qgsgeometry.h

@@ -321,11 +321,13 @@ class CORE_EXPORT QgsGeometry
     /** Adds a new ring to this geometry. This makes only sense for polygon and multipolygons.
      @return 0 in case of success (ring added), 1 problem with geometry type, 2 ring not closed,
      3 ring is not valid geometry, 4 ring not disjoint with existing rings, 5 no polygon found which contained the ring*/
+    // TODO QGIS 3.0 returns an enum instead of a magic constant
     int addRing( const QList<QgsPoint>& ring );
 
     /** Adds a new ring to this geometry. This makes only sense for polygon and multipolygons.
      @return 0 in case of success (ring added), 1 problem with geometry type, 2 ring not closed,
      3 ring is not valid geometry, 4 ring not disjoint with existing rings, 5 no polygon found which contained the ring*/
+    // TODO QGIS 3.0 returns an enum instead of a magic constant
     int addRing( QgsCurveV2* ring );
 
     /** Adds a new part to a the geometry.
@@ -334,6 +336,7 @@ class CORE_EXPORT QgsGeometry
      * @returns 0 in case of success, 1 if not a multipolygon, 2 if ring is not a valid geometry, 3 if new polygon ring
      * not disjoint with existing polygons of the feature
      */
+    // TODO QGIS 3.0 returns an enum instead of a magic constant
     int addPart( const QList<QgsPoint> &points, QGis::GeometryType geomType = QGis::UnknownGeometry );
 
     /** Adds a new part to a the geometry.
@@ -342,6 +345,7 @@ class CORE_EXPORT QgsGeometry
      * @returns 0 in case of success, 1 if not a multipolygon, 2 if ring is not a valid geometry, 3 if new polygon ring
      * not disjoint with existing polygons of the feature
      */
+    // TODO QGIS 3.0 returns an enum instead of a magic constant
     int addPart( const QList<QgsPointV2> &points, QGis::GeometryType geomType = QGis::UnknownGeometry );
 
     /** Adds a new part to this geometry.
@@ -350,6 +354,7 @@ class CORE_EXPORT QgsGeometry
      * @returns 0 in case of success, 1 if not a multipolygon, 2 if ring is not a valid geometry, 3 if new polygon ring
      * not disjoint with existing polygons of the feature
      */
+    // TODO QGIS 3.0 returns an enum instead of a magic constant
     int addPart( QgsAbstractGeometryV2* part, QGis::GeometryType geomType = QGis::UnknownGeometry );
 
     /** Adds a new island polygon to a multipolygon feature
@@ -358,13 +363,15 @@ class CORE_EXPORT QgsGeometry
      * not disjoint with existing polygons of the feature
      * @note not available in python bindings
      */
+    // TODO QGIS 3.0 returns an enum instead of a magic constant
     int addPart( GEOSGeometry *newPart );
 
     /** Adds a new island polygon to a multipolygon feature
      @return 0 in case of success, 1 if not a multipolygon, 2 if ring is not a valid geometry, 3 if new polygon ring
      not disjoint with existing polygons of the feature
      @note available in python bindings as addPartGeometry (added in 2.2)
      */
+    // TODO QGIS 3.0 returns an enum instead of a magic constant
     int addPart( const QgsGeometry *newPart );
 
     /** Translate this geometry by dx, dy
@@ -393,6 +400,7 @@ class CORE_EXPORT QgsGeometry
     @param topological true if topological editing is enabled
     @param[out] topologyTestPoints points that need to be tested for topological completeness in the dataset
     @return 0 in case of success, 1 if geometry has not been split, error else*/
+    // TODO QGIS 3.0 returns an enum instead of a magic constant
     int splitGeometry( const QList<QgsPoint>& splitLine,
                        QList<QgsGeometry*>&newGeometries,
                        bool topological,

src/core/geometry/qgsgeometryeditutils.h

@@ -37,11 +37,13 @@ class QgsGeometryEditUtils
     /** Adds interior ring (taking ownership).
     @return 0 in case of success (ring added), 1 problem with geometry type, 2 ring not closed,
     3 ring is not valid geometry, 4 ring not disjoint with existing rings, 5 no polygon found which contained the ring*/
+    // TODO QGIS 3.0 returns an enum instead of a magic constant
     static int addRing( QgsAbstractGeometryV2* geom, QgsCurveV2* ring );
 
     /** Adds part to multi type geometry (taking ownership)
     @return 0 in case of success, 1 if not a multigeometry, 2 if part is not a valid geometry, 3 if new polygon ring
     not disjoint with existing polygons of the feature*/
+    // TODO QGIS 3.0 returns an enum instead of a magic constant
     static int addPart( QgsAbstractGeometryV2* geom, QgsAbstractGeometryV2* part );
 
     /** Deletes a ring from a geometry.

src/core/qgsvectorlayer.h

@@ -953,6 +953,7 @@ class CORE_EXPORT QgsVectorLayer : public QgsMapLayer
      *  5 no feature found where ring can be inserted
      *  6 layer not editable
      */
+    // TODO QGIS 3.0 returns an enum instead of a magic constant
     int addRing( const QList<QgsPoint>& ring, QgsFeatureId* featureId = nullptr );
 
     /** Adds a ring to polygon/multipolygon features (takes ownership)
@@ -965,6 +966,7 @@ class CORE_EXPORT QgsVectorLayer : public QgsMapLayer
      *  6 layer not editable
      * @note available in python as addCurvedRing
      */
+    // TODO QGIS 3.0 returns an enum instead of a magic constant
     int addRing( QgsCurveV2* ring, QgsFeatureId* featureId = nullptr );
 
     /** Adds a new part polygon to a multipart feature
@@ -978,6 +980,7 @@ class CORE_EXPORT QgsVectorLayer : public QgsMapLayer
      *   6 if selected geometry not found
      *   7 layer not editable
      */
+    // TODO QGIS 3.0 returns an enum instead of a magic constant
     int addPart( const QList<QgsPoint>& ring );
 
     /** Adds a new part polygon to a multipart feature
@@ -992,6 +995,7 @@ class CORE_EXPORT QgsVectorLayer : public QgsMapLayer
      *   7 layer not editable
      * @note available in python bindings as addPartV2
      */
+    // TODO QGIS 3.0 returns an enum instead of a magic constant
     int addPart( const QList<QgsPointV2>& ring );
 
     //! @note available in python as addCurvedPart
@@ -1012,6 +1016,7 @@ class CORE_EXPORT QgsVectorLayer : public QgsMapLayer
      *   0 in case of success,
      *   4 if there is a selection but no feature split
      */
+    // TODO QGIS 3.0 returns an enum instead of a magic constant
     int splitParts( const QList<QgsPoint>& splitLine, bool topologicalEditing = false );
 
     /** Splits features cut by the given line
@@ -1021,6 +1026,7 @@ class CORE_EXPORT QgsVectorLayer : public QgsMapLayer
      *   0 in case of success,
      *   4 if there is a selection but no feature split
      */
+    // TODO QGIS 3.0 returns an enum instead of a magic constant
     int splitFeatures( const QList<QgsPoint>& splitLine, bool topologicalEditing = false );
 
     /** Changes the specified geometry such that it has no intersections with other

src/core/qgsvectorlayereditutils.h

@@ -76,6 +76,7 @@ class CORE_EXPORT QgsVectorLayerEditUtils
      *   4 ring crosses existing rings,
      *   5 no feature found where ring can be inserted
      */
+    // TODO QGIS 3.0 returns an enum instead of a magic constant
     int addRing( const QList<QgsPoint>& ring, const QgsFeatureIds& targetFeatureIds = QgsFeatureIds(), QgsFeatureId* modifiedFeatureId = nullptr );
 
     /** Adds a ring to polygon/multipolygon features
@@ -92,6 +93,7 @@ class CORE_EXPORT QgsVectorLayerEditUtils
      *  5 no feature found where ring can be inserted
      * @note available in python bindings as addCurvedRing
      */
+    // TODO QGIS 3.0 returns an enum instead of a magic constant
     int addRing( QgsCurveV2* ring, const QgsFeatureIds& targetFeatureIds = QgsFeatureIds(), QgsFeatureId* modifiedFeatureId = nullptr );
 
     /** Adds a new part polygon to a multipart feature
@@ -104,6 +106,7 @@ class CORE_EXPORT QgsVectorLayerEditUtils
      *  5 if several features are selected,
      *  6 if selected geometry not found
      */
+    // TODO QGIS 3.0 returns an enum instead of a magic constant
     int addPart( const QList<QgsPoint>& ring, QgsFeatureId featureId );
 
     /** Adds a new part polygon to a multipart feature
@@ -117,9 +120,11 @@ class CORE_EXPORT QgsVectorLayerEditUtils
      *  6 if selected geometry not found
      * @note available in python bindings as addPartV2
      */
+    // TODO QGIS 3.0 returns an enum instead of a magic constant
     int addPart( const QList<QgsPointV2>& ring, QgsFeatureId featureId );
 
     // @note available in python bindings as addCurvedPart
+    // TODO QGIS 3.0 returns an enum instead of a magic constant
     int addPart( QgsCurveV2* ring, QgsFeatureId featureId );
 
     /** Translates feature by dx, dy
@@ -137,6 +142,7 @@ class CORE_EXPORT QgsVectorLayerEditUtils
      *   0 in case of success,
      *   4 if there is a selection but no feature split
      */
+    // TODO QGIS 3.0 returns an enum instead of a magic constant
     int splitParts( const QList<QgsPoint>& splitLine, bool topologicalEditing = false );
 
     /** Splits features cut by the given line
@@ -146,6 +152,7 @@ class CORE_EXPORT QgsVectorLayerEditUtils
      *   0 in case of success,
      *   4 if there is a selection but no feature split
      */
+    // TODO QGIS 3.0 returns an enum instead of a magic constant
     int splitFeatures( const QList<QgsPoint>& splitLine, bool topologicalEditing = false );
 
     /** Adds topological points for every vertex of the geometry.

src/gui/qgsmaptoolcapture.h

@@ -98,6 +98,7 @@ class GUI_EXPORT QgsMapToolCapture : public QgsMapToolAdvancedDigitizing
      *  2 if the transformation failed
      * @deprecated use nextPoint(const QgsPointV2&, QgsPointV2&)
      */
+    // TODO QGIS 3.0 returns an enum instead of a magic constant
     Q_DECL_DEPRECATED int nextPoint( const QgsPoint& mapPoint, QgsPoint& layerPoint );
 
     /** Converts a map point to layer coordinates
@@ -108,6 +109,7 @@ class GUI_EXPORT QgsMapToolCapture : public QgsMapToolAdvancedDigitizing
      *   1 if the current layer is null or not a vector layer
      *   2 if the transformation failed
      */
+    // TODO QGIS 3.0 returns an enum instead of a magic constant
     int nextPoint( const QgsPointV2& mapPoint, QgsPointV2& layerPoint );
 
     /** Converts a point to map coordinates and layer coordinates
@@ -120,6 +122,7 @@ class GUI_EXPORT QgsMapToolCapture : public QgsMapToolAdvancedDigitizing
      *  2 if the transformation failed
      * @deprecated use nextPoint( const QPoint&, QgsPointV2&, QgsPointV2& )
      */
+    // TODO QGIS 3.0 returns an enum instead of a magic constant
     Q_DECL_DEPRECATED int nextPoint( QPoint p, QgsPoint &layerPoint, QgsPoint &mapPoint );
 
     /** Converts a point to map coordinates and layer coordinates
@@ -131,18 +134,21 @@ class GUI_EXPORT QgsMapToolCapture : public QgsMapToolAdvancedDigitizing
      *  1 if the current layer is null or not a vector layer
      *  2 if the transformation failed
      */
+    // TODO QGIS 3.0 returns an enum instead of a magic constant
     int nextPoint( QPoint p, QgsPointV2 &layerPoint, QgsPointV2 &mapPoint );
 
     /** Fetches the original point from the source layer if it has the same
      * CRS as the current layer.
      * @return 0 in case of success, 1 if not applicable (CRS mismatch), 2 in case of failure
      * @note added in 2.14
      */
+    // TODO QGIS 3.0 returns an enum instead of a magic constant
     int fetchLayerPoint( QgsPointLocator::Match match, QgsPointV2& layerPoint );
 
     /** Adds a point to the rubber band (in map coordinates) and to the capture list (in layer coordinates)
      * @return 0 in case of success, 1 if current layer is not a vector layer, 2 if coordinate transformation failed
      */
+    // TODO QGIS 3.0 returns an enum instead of a magic constant
     int addVertex( const QgsPoint& point );
 
     /** Variant to supply more information in the case of snapping