Fix node tool. Change geometry type for memory layer to ..ZM.

src/app/nodetool/qgsmaptoolnodetool.cpp

@@ -630,7 +630,9 @@ void QgsMapToolNodeTool::canvasDoubleClickEvent( QgsMapMouseEvent* e )
   vlayer->beginEditCommand( tr( "Inserted vertex" ) );
 
   // add vertex
-  vlayer->insertVertex( layerCoords.x(), layerCoords.y(), mSelectedFeature->featureId(), snapResults.first().afterVertexNr );
+  QgsPointV2 p( layerCoords.x(), layerCoords.y() );
+  p.addZValue( defaultZValue() );
+  vlayer->insertVertex( p, mSelectedFeature->featureId(), snapResults.first().afterVertexNr );
 
   if ( topologicalEditing )
   {

src/core/geometry/qgsgeometry.cpp

@@ -508,6 +508,32 @@ bool QgsGeometry::insertVertex( double x, double y, int beforeVertex )
   return d->geometry->insertVertex( id, QgsPointV2( x, y ) );
 }
 
+bool QgsGeometry::insertVertex( QgsPointV2& p, int beforeVertex )
+{
+  if ( !d->geometry )
+  {
+    return false;
+  }
+
+  //maintain compatibility with < 2.10 API
+  if ( QgsWkbTypes::flatType( d->geometry->wkbType() ) == QgsWkbTypes::MultiPoint )
+  {
+    detach( true );
+    //insert geometry instead of point
+    return static_cast< QgsGeometryCollection* >( d->geometry )->insertGeometry( new QgsPointV2( p ), beforeVertex );
+  }
+
+  QgsVertexId id;
+  if ( !vertexIdFromVertexNr( beforeVertex, id ) )
+  {
+    return false;
+  }
+
+  detach( true );
+
+  return d->geometry->insertVertex( id, p );
+}
+
 QgsPoint QgsGeometry::vertexAt( int atVertex ) const
 {
   if ( !d->geometry )

src/core/geometry/qgsgeometry.h

@@ -268,6 +268,19 @@ class CORE_EXPORT QgsGeometry
      */
     bool insertVertex( double x, double y, int beforeVertex );
 
+    /** Insert a new vertex before the given vertex index,
+     *  ring and item (first number is index 0)
+     *  If the requested vertex number (beforeVertex.back()) is greater
+     *  than the last actual vertex on the requested ring and item,
+     *  it is assumed that the vertex is to be appended instead of inserted.
+     *  Returns false if atVertex does not correspond to a valid vertex
+     *  on this geometry (including if this geometry is a Point).
+     *  It is up to the caller to distinguish between
+     *  these error conditions.  (Or maybe we add another method to this
+     *  object to help make the distinction?)
+     */
+    bool insertVertex( QgsPointV2& p, int beforeVertex );
+
     /** Moves the vertex at the given position number
      *  and item (first number is index 0)
      *  to the given coordinates.

src/core/qgsvectorlayer.cpp

@@ -1023,6 +1023,19 @@ bool QgsVectorLayer::insertVertex( double x, double y, QgsFeatureId atFeatureId,
 }
 
 
+bool QgsVectorLayer::insertVertex( QgsPointV2& p, QgsFeatureId atFeatureId, int beforeVertex )
+{
+  if ( !mValid || !mEditBuffer || !mDataProvider )
+    return false;
+
+  QgsVectorLayerEditUtils utils( this );
+  bool result = utils.insertVertex( p, atFeatureId, beforeVertex );
+  if ( result )
+    updateExtents();
+  return result;
+}
+
+
 bool QgsVectorLayer::moveVertex( double x, double y, QgsFeatureId atFeatureId, int atVertex )
 {
   if ( !mValid || !mEditBuffer || !mDataProvider )

src/core/qgsvectorlayer.h

@@ -939,6 +939,12 @@ class CORE_EXPORT QgsVectorLayer : public QgsMapLayer, public QgsExpressionConte
      */
     bool insertVertex( double x, double y, QgsFeatureId atFeatureId, int beforeVertex );
 
+    /** Insert a new vertex before the given vertex number,
+     *  in the given ring, item (first number is index 0), and feature
+     *  Not meaningful for Point geometries
+     */
+    bool insertVertex( QgsPointV2& p, QgsFeatureId atFeatureId, int beforeVertex );
+
     /** Moves the vertex at the given position number,
      *  ring and item (first number is index 0), and feature
      *  to the given coordinates

src/core/qgsvectorlayereditutils.cpp

@@ -56,6 +56,27 @@ bool QgsVectorLayerEditUtils::insertVertex( double x, double y, QgsFeatureId atF
   return true;
 }
 
+bool QgsVectorLayerEditUtils::insertVertex( QgsPointV2& p, QgsFeatureId atFeatureId, int beforeVertex )
+{
+  if ( !L->hasGeometryType() )
+    return false;
+
+  QgsGeometry geometry;
+  if ( !cache()->geometry( atFeatureId, geometry ) )
+  {
+    // it's not in cache: let's fetch it from layer
+    QgsFeature f;
+    if ( !L->getFeatures( QgsFeatureRequest().setFilterFid( atFeatureId ).setSubsetOfAttributes( QgsAttributeList() ) ).nextFeature( f ) || !f.hasGeometry() )
+      return false; // geometry not found
+
+    geometry = f.geometry();
+  }
+
+  geometry.insertVertex( p, beforeVertex );
+
+  L->editBuffer()->changeGeometry( atFeatureId, geometry );
+  return true;
+}
 
 bool QgsVectorLayerEditUtils::moveVertex( double x, double y, QgsFeatureId atFeatureId, int atVertex )
 {

src/core/qgsvectorlayereditutils.h

@@ -41,6 +41,12 @@ class CORE_EXPORT QgsVectorLayerEditUtils
      */
     bool insertVertex( double x, double y, QgsFeatureId atFeatureId, int beforeVertex );
 
+    /** Insert a new vertex before the given vertex number,
+     *  in the given ring, item (first number is index 0), and feature
+     *  Not meaningful for Point geometries
+     */
+    bool insertVertex( QgsPointV2& p, QgsFeatureId atFeatureId, int beforeVertex );
+
     /** Moves the vertex at the given position number,
      *  ring and item (first number is index 0), and feature
      *  to the given coordinates

src/gui/qgsmaptoolcapture.cpp

@@ -611,11 +611,6 @@ void QgsMapToolCapture::deleteTempRubberBand()
   }
 }
 
-double QgsMapToolCapture::defaultZValue()
-{
-  QSettings().value( QStringLiteral( "/qgis/digitizing/default_z_value" ), Qgis::DEFAULT_Z_COORDINATE ).toDouble();
-}
-
 void QgsMapToolCapture::closePolygon()
 {
   mCaptureCurve.close();

src/gui/qgsmaptoolcapture.h

@@ -82,12 +82,6 @@ class GUI_EXPORT QgsMapToolCapture : public QgsMapToolAdvancedDigitizing
      */
     void deleteTempRubberBand();
 
-    /**
-     * Return default Z value
-     * Use for set Z coordinate to new vertex for 2.5d geometries
-     */
-    double defaultZValue();
-
   private slots:
     void validationFinished();
     void currentLayerChanged( QgsMapLayer *layer );

src/gui/qgsmaptooledit.cpp

@@ -34,6 +34,11 @@ QgsMapToolEdit::~QgsMapToolEdit()
 }
 
 
+double QgsMapToolEdit::defaultZValue()
+{
+  QSettings().value( QStringLiteral( "/qgis/digitizing/default_z_value" ), Qgis::DEFAULT_Z_COORDINATE ).toDouble();
+}
+
 QgsRubberBand* QgsMapToolEdit::createRubberBand( QgsWkbTypes::GeometryType geometryType, bool alternativeBand )
 {
   QSettings settings;

src/gui/qgsmaptooledit.h

@@ -37,6 +37,12 @@ class GUI_EXPORT QgsMapToolEdit: public QgsMapTool
 
     virtual Flags flags() const override { return QgsMapTool::EditTool; }
 
+    /**
+     * Return default Z value
+     * Use for set Z coordinate to new vertex for 2.5d geometries
+     */
+    double defaultZValue();
+
   protected:
 
     /** Creates a rubber band with the color/line width from

src/gui/qgsnewmemorylayerdialog.cpp

@@ -110,7 +110,7 @@ QgsWkbTypes::Type QgsNewMemoryLayerDialog::selectedType() const
   }
 
   if ( mGeometryWithZCheckBox->isChecked() && wkbType != QgsWkbTypes::Unknown && wkbType != QgsWkbTypes::NoGeometry )
-    wkbType = QgsWkbTypes::zmType( wkbType, true, false );
+    wkbType = QgsWkbTypes::zmType( wkbType, true, true );
 
   return wkbType;
 }

src/ui/qgsnewmemorylayerdialogbase.ui

@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>444</width>
-    <height>293</height>
+    <height>304</height>
    </rect>
   </property>
   <property name="sizePolicy">
@@ -81,7 +81,7 @@
       <item>
        <widget class="QCheckBox" name="mGeometryWithZCheckBox">
         <property name="text">
-         <string>Geometries with Z coordinate</string>
+         <string>Geometries with Z/M coordinate</string>
         </property>
        </widget>
       </item>