Add signals for when layer elevation properties change

python/core/auto_generated/qgsmaplayerelevationproperties.sip.in

@@ -228,7 +228,33 @@ Returns the definitions for data defined properties available for use in elevati
 
     void changed();
 %Docstring
-Emitted when the elevation properties have changed.
+Emitted when any of the elevation properties have changed.
+
+See :py:func:`~QgsMapLayerElevationProperties.renderingPropertyChanged` and :py:func:`~QgsMapLayerElevationProperties.profileGenerationPropertyChanged` for more fine-grained signals.
+%End
+
+    void renderingPropertyChanged();
+%Docstring
+Emitted when any of the elevation properties which relate solely to presentation of elevation
+results have changed.
+
+.. seealso:: :py:func:`changed`
+
+.. seealso:: :py:func:`profileGenerationPropertyChanged`
+
+.. versionadded:: 3.26
+%End
+
+    void profileGenerationPropertyChanged();
+%Docstring
+Emitted when any of the elevation properties which relate solely to generation of elevation
+profiles have changed.
+
+.. seealso:: :py:func:`changed`
+
+.. seealso:: :py:func:`renderingPropertyChanged`
+
+.. versionadded:: 3.26
 %End
 
   protected:

src/core/mesh/qgsmeshlayerelevationproperties.cpp

@@ -104,6 +104,8 @@ QgsLineSymbol *QgsMeshLayerElevationProperties::profileLineSymbol() const
 void QgsMeshLayerElevationProperties::setProfileLineSymbol( QgsLineSymbol *symbol )
 {
   mProfileLineSymbol.reset( symbol );
+  emit changed();
+  emit renderingPropertyChanged();
 }
 
 void QgsMeshLayerElevationProperties::setDefaultProfileLineSymbol()

src/core/qgsmaplayerelevationproperties.cpp

@@ -83,6 +83,36 @@ bool QgsMapLayerElevationProperties::showByDefaultInElevationProfilePlots() cons
   return false;
 }
 
+void QgsMapLayerElevationProperties::setZOffset( double offset )
+{
+  if ( qgsDoubleNear( offset, mZOffset ) )
+    return;
+
+  mZOffset = offset;
+  emit changed();
+  emit profileGenerationPropertyChanged();
+}
+
+void QgsMapLayerElevationProperties::setZScale( double scale )
+{
+  if ( qgsDoubleNear( scale, mZScale ) )
+    return;
+
+  mZScale = scale;
+  emit changed();
+  emit profileGenerationPropertyChanged();
+}
+
+void QgsMapLayerElevationProperties::setDataDefinedProperties( const QgsPropertyCollection &collection )
+{
+  if ( mDataDefinedProperties == collection )
+    return;
+
+  mDataDefinedProperties = collection;
+  emit changed();
+  emit profileGenerationPropertyChanged();
+}
+
 QgsPropertiesDefinition QgsMapLayerElevationProperties::propertyDefinitions()
 {
   static std::once_flag initialized;

src/core/qgsmaplayerelevationproperties.h

@@ -187,7 +187,7 @@ class CORE_EXPORT QgsMapLayerElevationProperties : public QObject
      *
      * \see zOffset()
      */
-    void setZOffset( double offset ) { mZOffset = offset; }
+    void setZOffset( double offset );
 
     /**
      * Returns the z scale, which is a scaling factor which should be applied to z values from
@@ -213,7 +213,7 @@ class CORE_EXPORT QgsMapLayerElevationProperties : public QObject
      *
      * \see zScale()
      */
-    void setZScale( double scale ) { mZScale = scale; }
+    void setZScale( double scale );
 
     /**
      * Returns a reference to the object's property collection, used for data defined overrides.
@@ -240,7 +240,7 @@ class CORE_EXPORT QgsMapLayerElevationProperties : public QObject
      * \see Property
      * \since QGIS 3.26
      */
-    void setDataDefinedProperties( const QgsPropertyCollection &collection ) { mDataDefinedProperties = collection; }
+    void setDataDefinedProperties( const QgsPropertyCollection &collection );
 
     /**
      * Returns the definitions for data defined properties available for use in elevation properties.
@@ -252,10 +252,32 @@ class CORE_EXPORT QgsMapLayerElevationProperties : public QObject
   signals:
 
     /**
-     * Emitted when the elevation properties have changed.
+     * Emitted when any of the elevation properties have changed.
+     *
+     * See renderingPropertyChanged() and profileGenerationPropertyChanged() for more fine-grained signals.
      */
     void changed();
 
+    /**
+     * Emitted when any of the elevation properties which relate solely to presentation of elevation
+     * results have changed.
+     *
+     * \see changed()
+     * \see profileGenerationPropertyChanged()
+     * \since QGIS 3.26
+     */
+    void renderingPropertyChanged();
+
+    /**
+     * Emitted when any of the elevation properties which relate solely to generation of elevation
+     * profiles have changed.
+     *
+     * \see changed()
+     * \see renderingPropertyChanged()
+     * \since QGIS 3.26
+     */
+    void profileGenerationPropertyChanged();
+
   protected:
     //! Z scale
     double mZScale = 1.0;

src/core/raster/qgsrasterlayerelevationproperties.cpp

@@ -104,6 +104,26 @@ bool QgsRasterLayerElevationProperties::showByDefaultInElevationProfilePlots() c
   return mEnabled;
 }
 
+void QgsRasterLayerElevationProperties::setEnabled( bool enabled )
+{
+  if ( enabled == mEnabled )
+    return;
+
+  mEnabled = enabled;
+  emit changed();
+  emit profileGenerationPropertyChanged();
+}
+
+void QgsRasterLayerElevationProperties::setBandNumber( int band )
+{
+  if ( mBandNumber == band )
+    return;
+
+  mBandNumber = band;
+  emit changed();
+  emit profileGenerationPropertyChanged();
+}
+
 QgsLineSymbol *QgsRasterLayerElevationProperties::profileLineSymbol() const
 {
   return mProfileLineSymbol.get();
@@ -112,6 +132,8 @@ QgsLineSymbol *QgsRasterLayerElevationProperties::profileLineSymbol() const
 void QgsRasterLayerElevationProperties::setProfileLineSymbol( QgsLineSymbol *symbol )
 {
   mProfileLineSymbol.reset( symbol );
+  emit changed();
+  emit renderingPropertyChanged();
 }
 
 void QgsRasterLayerElevationProperties::setDefaultProfileLineSymbol()

src/core/raster/qgsrasterlayerelevationproperties.h

@@ -65,7 +65,7 @@ class CORE_EXPORT QgsRasterLayerElevationProperties : public QgsMapLayerElevatio
      *
      * \see isEnabled()
      */
-    void setEnabled( bool enabled ) { mEnabled = enabled; }
+    void setEnabled( bool enabled );
 
     /**
      * Returns the band number from which the elevation should be taken.
@@ -79,7 +79,7 @@ class CORE_EXPORT QgsRasterLayerElevationProperties : public QgsMapLayerElevatio
      *
      * \see bandNumber()
      */
-    void setBandNumber( int band ) { mBandNumber = band; }
+    void setBandNumber( int band );
 
     /**
      * Returns the line symbol used to render the raster profile in elevation profile plots.

src/core/vector/qgsvectorlayerelevationproperties.cpp

@@ -237,6 +237,56 @@ bool QgsVectorLayerElevationProperties::showByDefaultInElevationProfilePlots() c
          || mClamping != Qgis::AltitudeClamping::Terrain;
 }
 
+void QgsVectorLayerElevationProperties::setClamping( Qgis::AltitudeClamping clamping )
+{
+  if ( mClamping == clamping )
+    return;
+
+  mClamping = clamping;
+  emit changed();
+  emit profileGenerationPropertyChanged();
+}
+
+void QgsVectorLayerElevationProperties::setBinding( Qgis::AltitudeBinding binding )
+{
+  if ( mBinding == binding )
+    return;
+
+  mBinding = binding;
+  emit changed();
+  emit profileGenerationPropertyChanged();
+}
+
+void QgsVectorLayerElevationProperties::setExtrusionEnabled( bool enabled )
+{
+  if ( mEnableExtrusion == enabled )
+    return;
+
+  mEnableExtrusion = enabled;
+  emit changed();
+  emit profileGenerationPropertyChanged();
+}
+
+void QgsVectorLayerElevationProperties::setExtrusionHeight( double height )
+{
+  if ( mExtrusionHeight == height )
+    return;
+
+  mExtrusionHeight = height;
+  emit changed();
+  emit profileGenerationPropertyChanged();
+}
+
+void QgsVectorLayerElevationProperties::setRespectLayerSymbology( bool enabled )
+{
+  if ( mRespectLayerSymbology == enabled )
+    return;
+
+  mRespectLayerSymbology = enabled;
+  emit changed();
+  emit renderingPropertyChanged();
+}
+
 QgsLineSymbol *QgsVectorLayerElevationProperties::profileLineSymbol() const
 {
   return mProfileLineSymbol.get();
@@ -245,6 +295,8 @@ QgsLineSymbol *QgsVectorLayerElevationProperties::profileLineSymbol() const
 void QgsVectorLayerElevationProperties::setProfileLineSymbol( QgsLineSymbol *symbol )
 {
   mProfileLineSymbol.reset( symbol );
+  emit changed();
+  emit renderingPropertyChanged();
 }
 
 QgsFillSymbol *QgsVectorLayerElevationProperties::profileFillSymbol() const
@@ -255,6 +307,8 @@ QgsFillSymbol *QgsVectorLayerElevationProperties::profileFillSymbol() const
 void QgsVectorLayerElevationProperties::setProfileFillSymbol( QgsFillSymbol *symbol )
 {
   mProfileFillSymbol.reset( symbol );
+  emit changed();
+  emit renderingPropertyChanged();
 }
 
 QgsMarkerSymbol *QgsVectorLayerElevationProperties::profileMarkerSymbol() const
@@ -265,6 +319,8 @@ QgsMarkerSymbol *QgsVectorLayerElevationProperties::profileMarkerSymbol() const
 void QgsVectorLayerElevationProperties::setProfileMarkerSymbol( QgsMarkerSymbol *symbol )
 {
   mProfileMarkerSymbol.reset( symbol );
+  emit changed();
+  emit renderingPropertyChanged();
 }
 
 void QgsVectorLayerElevationProperties::setDefaultProfileLineSymbol( const QColor &color )

src/core/vector/qgsvectorlayerelevationproperties.h

@@ -72,7 +72,7 @@ class CORE_EXPORT QgsVectorLayerElevationProperties : public QgsMapLayerElevatio
      *
      * \see clamping()
      */
-    void setClamping( Qgis::AltitudeClamping clamping ) { mClamping = clamping; }
+    void setClamping( Qgis::AltitudeClamping clamping );
 
     /**
      * Returns the altitude binding method, which determines how altitude is bound to individual vertices in features.
@@ -90,7 +90,7 @@ class CORE_EXPORT QgsVectorLayerElevationProperties : public QgsMapLayerElevatio
      *
      * \see binding()
      */
-    void setBinding( Qgis::AltitudeBinding binding ) { mBinding = binding; }
+    void setBinding( Qgis::AltitudeBinding binding );
 
     /**
      * Returns TRUE if extrusion is enabled.
@@ -106,7 +106,7 @@ class CORE_EXPORT QgsVectorLayerElevationProperties : public QgsMapLayerElevatio
      * \see extrusionEnabled()
      * \see setExtrusionHeight()
      */
-    void setExtrusionEnabled( bool enabled ) { mEnableExtrusion = enabled; }
+    void setExtrusionEnabled( bool enabled );
 
     /**
      * Returns the feature extrusion height.
@@ -126,7 +126,7 @@ class CORE_EXPORT QgsVectorLayerElevationProperties : public QgsMapLayerElevatio
      *
      * \see extrusionHeight()
      */
-    void setExtrusionHeight( double height ) { mExtrusionHeight = height; }
+    void setExtrusionHeight( double height );
 
     /**
      * Returns TRUE if layer symbology should be respected when rendering elevation profile plots.
@@ -146,7 +146,7 @@ class CORE_EXPORT QgsVectorLayerElevationProperties : public QgsMapLayerElevatio
      *
      * \see respectLayerSymbology()
      */
-    void setRespectLayerSymbology( bool enabled ) { mRespectLayerSymbology = enabled; }
+    void setRespectLayerSymbology( bool enabled );
 
     /**
      * Returns the symbol used to render lines for the layer in elevation profile plots.