Fix QgsGeometry::insertVertex and deleteVertex compatibility with

<2.10 API and multipoint geometries

Also fix a crash in QgsGeometryCollection::removeGeometry

python/core/geometry/qgsgeometrycollectionv2.sip

@@ -21,6 +21,12 @@ class QgsGeometryCollectionV2: public QgsAbstractGeometryV2
 
     /** Adds a geometry and takes ownership. Returns true in case of success*/
     virtual bool addGeometry( QgsAbstractGeometryV2* g /Transfer/ );
+
+    /** Inserts a geometry before a specified index and takes ownership. Returns true in case of success.
+     * @param index position to insert geometry before
+    */
+    virtual bool insertGeometry( QgsAbstractGeometryV2* g /Transfer/, int index );
+
     virtual bool removeGeometry( int nr );
 
     virtual void transform( const QgsCoordinateTransform& ct, QgsCoordinateTransform::TransformDirection d = QgsCoordinateTransform::ForwardTransform );

src/core/geometry/qgsgeometry.cpp

@@ -438,6 +438,15 @@ bool QgsGeometry::deleteVertex( int atVertex )
     return false;
   }
 
+  //maintain compatibility with < 2.10 API
+  if ( d->geometry->geometryType() == "MultiPoint" )
+  {
+    detach( true );
+    removeWkbGeos();
+    //delete geometry instead of point
+    return static_cast< QgsGeometryCollectionV2* >( d->geometry )->removeGeometry( atVertex );
+  }
+
   //if it is a point, set the geometry to NULL
   if ( QgsWKBTypes::flatType( d->geometry->wkbType() ) == QgsWKBTypes::Point )
   {
@@ -467,15 +476,25 @@ bool QgsGeometry::insertVertex( double x, double y, int beforeVertex )
     return false;
   }
 
-  detach( true );
+  //maintain compatibility with < 2.10 API
+  if ( d->geometry->geometryType() == "MultiPoint" )
+  {
+    detach( true );
+    removeWkbGeos();
+    //insert geometry instead of point
+    return static_cast< QgsGeometryCollectionV2* >( d->geometry )->insertGeometry( new QgsPointV2( x, y ), beforeVertex );
+  }
 
   QgsVertexId id;
   if ( !vertexIdFromVertexNr( beforeVertex, id ) )
   {
     return false;
   }
 
+  detach( true );
+
   removeWkbGeos();
+
   return d->geometry->insertVertex( id, QgsPointV2( x, y ) );
 }
 

src/core/geometry/qgsgeometrycollectionv2.cpp

@@ -105,9 +105,20 @@ bool QgsGeometryCollectionV2::addGeometry( QgsAbstractGeometryV2* g )
   return true;
 }
 
+bool QgsGeometryCollectionV2::insertGeometry( QgsAbstractGeometryV2 *g, int index )
+{
+  if ( !g )
+  {
+    return false;
+  }
+
+  mGeometries.insert( index, g );
+  return true;
+}
+
 bool QgsGeometryCollectionV2::removeGeometry( int nr )
 {
-  if ( nr >= mGeometries.size() )
+  if ( nr >= mGeometries.size() || nr < 0 )
   {
     return false;
   }

src/core/geometry/qgsgeometrycollectionv2.h

@@ -57,6 +57,11 @@ class CORE_EXPORT QgsGeometryCollectionV2: public QgsAbstractGeometryV2
     /** Adds a geometry and takes ownership. Returns true in case of success.*/
     virtual bool addGeometry( QgsAbstractGeometryV2* g );
 
+    /** Inserts a geometry before a specified index and takes ownership. Returns true in case of success.
+     * @param index position to insert geometry before
+    */
+    virtual bool insertGeometry( QgsAbstractGeometryV2* g, int index );
+
     /** Removes a geometry from the collection.
      * @param nr index of geometry to remove
      * @returns true if removal was successful.

tests/src/python/test_qgsgeometry.py

@@ -751,30 +751,30 @@ def testMultipoint(self):
         assert multipoint.vertexAt(0) == QgsPoint(5, 5), "MULTIPOINT fromWkt failed"
 
         assert multipoint.insertVertex(4, 4, 0), "MULTIPOINT insert 4,4 at 0 failed"
-        expwkt = "MultiPoint ((4 4, 5 5))"
+        expwkt = "MultiPoint ((4 4),(5 5))"
         wkt = multipoint.exportToWkt()
         assert compareWkt(expwkt, wkt), "Expected:\n%s\nGot:\n%s\n" % (expwkt, wkt)
 
         assert multipoint.insertVertex(7, 7, 2), "MULTIPOINT append 7,7 at 2 failed"
-        expwkt = "MultiPoint ((4 4, 5 5, 7 7))"
+        expwkt = "MultiPoint ((4 4),(5 5),(7 7))"
         wkt = multipoint.exportToWkt()
         assert compareWkt(expwkt, wkt), "Expected:\n%s\nGot:\n%s\n" % (expwkt, wkt)
 
         assert multipoint.insertVertex(6, 6, 2), "MULTIPOINT append 6,6 at 2 failed"
-        expwkt = "MultiPoint ((4 4, 5 5, 6 6, 7 7))"
+        expwkt = "MultiPoint ((4 4),(5 5),(6 6),(7 7))"
         wkt = multipoint.exportToWkt()
         assert compareWkt(expwkt, wkt), "Expected:\n%s\nGot:\n%s\n" % (expwkt, wkt)
 
         assert not multipoint.deleteVertex(4), "MULTIPOINT delete at 4 unexpectedly succeeded"
         assert not multipoint.deleteVertex(-1), "MULTIPOINT delete at -1 unexpectedly succeeded"
 
         assert multipoint.deleteVertex(1), "MULTIPOINT delete at 1 failed"
-        expwkt = "MultiPoint ((4 4, 6 6, 7 7))"
+        expwkt = "MultiPoint ((4 4),(6 6),(7 7))"
         wkt = multipoint.exportToWkt()
         assert compareWkt(expwkt, wkt), "Expected:\n%s\nGot:\n%s\n" % (expwkt, wkt)
 
         assert multipoint.deleteVertex(2), "MULTIPOINT delete at 2 failed"
-        expwkt = "MultiPoint ((4 4, 6 6))"
+        expwkt = "MultiPoint ((4 4),(6 6))"
         wkt = multipoint.exportToWkt()
         assert compareWkt(expwkt, wkt), "Expected:\n%s\nGot:\n%s\n" % (expwkt, wkt)