Allow setting diagram properties collection

nyalldawson · nyalldawson · commit a4ef9ad89c1f · 2017-01-23T12:45:21.000+10:00
diff --git a/python/core/qgsdiagramrenderer.sip b/python/core/qgsdiagramrenderer.sip
@@ -205,14 +205,23 @@ class QgsDiagramLayerSettings
 
     /** Returns a reference to the diagram's property collection, used for data defined overrides.
      * @note added in QGIS 2.16
+     * @see setProperties()
      */
     QgsPropertyCollection& properties();
 
     /** Returns a reference to the diagram's property collection, used for data defined overrides.
      * @note added in QGIS 2.16
+     * @see setProperties()
      */
     //const QgsPropertyCollection& properties() const;
 
+    /** Sets the diagram's property collection, used for data defined overrides.
+     * @param collection property collection. Existing properties will be replaced.
+     * @note adde in QGIS 2.16
+     * @see properties()
+     */
+    void setProperties( const QgsPropertyCollection& collection );
+
 };
 
 /** \ingroup core
diff --git a/src/core/qgsdiagramrenderer.h b/src/core/qgsdiagramrenderer.h
@@ -253,14 +253,23 @@ class CORE_EXPORT QgsDiagramLayerSettings
 
     /** Returns a reference to the diagram's property collection, used for data defined overrides.
      * @note added in QGIS 3.0
+     * @see setProperties()
      */
     QgsPropertyCollection& properties() { return mProperties; }
 
     /** Returns a reference to the diagram's property collection, used for data defined overrides.
      * @note added in QGIS 3.0
+     * @see setProperties()
      */
     const QgsPropertyCollection& properties() const { return mProperties; }
 
+    /** Sets the diagram's property collection, used for data defined overrides.
+     * @param collection property collection. Existing properties will be replaced.
+     * @note added in QGIS 3.0
+     * @see properties()
+     */
+    void setProperties( const QgsPropertyCollection& collection ) { mProperties = collection; }
+
   private:
 
     //! Associated coordinate transform, or invalid transform for no transformation
