Fix export to geopdf skips raster and mesh layers

Fixes #32148

python/core/auto_generated/qgsmaplayerrenderer.sip.in

@@ -62,6 +62,13 @@ Returns list of errors (problems) that happened during the rendering
     QString layerId() const;
 %Docstring
 Gets access to the ID of the layer rendered by this class
+%End
+
+    virtual void setPainter( QPainter *painter );
+%Docstring
+Resets the painter to use for the job to a new ``painter``.
+
+.. versionadded:: 3.10
 %End
 
   protected:

src/core/mesh/qgsmeshlayerrenderer.cpp

@@ -57,6 +57,11 @@ QgsMeshLayerRenderer::QgsMeshLayerRenderer( QgsMeshLayer *layer, QgsRenderContex
   calculateOutputSize();
 }
 
+void QgsMeshLayerRenderer::setPainter( QPainter *painter )
+{
+  mContext.setPainter( painter );
+}
+
 QgsFeedback *QgsMeshLayerRenderer::feedback() const
 {
   return mFeedback.get();

src/core/mesh/qgsmeshlayerrenderer.h

@@ -88,6 +88,7 @@ class QgsMeshLayerRenderer : public QgsMapLayerRenderer
     //! Ctor
     QgsMeshLayerRenderer( QgsMeshLayer *layer, QgsRenderContext &context );
     ~QgsMeshLayerRenderer() override = default;
+    void setPainter( QPainter *painter ) override;
     QgsFeedback *feedback() const override;
     bool render() override;
 

src/core/qgsmaplayerrenderer.h

@@ -21,6 +21,7 @@
 #include "qgis_core.h"
 
 class QgsFeedback;
+class QPainter;
 
 /**
  * \ingroup core
@@ -66,6 +67,13 @@ class CORE_EXPORT QgsMapLayerRenderer
     //! Gets access to the ID of the layer rendered by this class
     QString layerId() const { return mLayerID; }
 
+    /**
+     * Resets the painter to use for the job to a new \a painter.
+     *
+     * \since QGIS 3.10
+     */
+    virtual void setPainter( QPainter *painter ) { Q_UNUSED( painter ) }
+
   protected:
     QStringList mErrors;
     QString mLayerID;

src/core/qgsmaprendererstagedrenderjob.cpp

@@ -102,7 +102,7 @@ bool QgsMapRendererStagedRenderJob::renderCurrentPart( QPainter *painter )
   if ( mJobIt != mLayerJobs.end() )
   {
     LayerRenderJob &job = *mJobIt;
-    job.context.setPainter( painter );
+    job.renderer->setPainter( painter );
 
     if ( job.context.useAdvancedEffects() )
     {

src/core/qgsvectorlayerrenderer.cpp

@@ -131,6 +131,11 @@ QgsFeedback *QgsVectorLayerRenderer::feedback() const
   return mInterruptionChecker.get();
 }
 
+void QgsVectorLayerRenderer::setPainter( QPainter *painter )
+{
+  mContext.setPainter( painter );
+}
+
 bool QgsVectorLayerRenderer::render()
 {
   if ( mGeometryType == QgsWkbTypes::NullGeometry || mGeometryType == QgsWkbTypes::UnknownGeometry )

src/core/qgsvectorlayerrenderer.h

@@ -77,7 +77,7 @@ class QgsVectorLayerRenderer : public QgsMapLayerRenderer
     QgsVectorLayerRenderer( QgsVectorLayer *layer, QgsRenderContext &context );
     ~QgsVectorLayerRenderer() override;
     QgsFeedback *feedback() const override;
-
+    void setPainter( QPainter *painter ) override;
     bool render() override;
 
   private:

src/core/raster/qgsrasterlayerrenderer.cpp

@@ -238,6 +238,11 @@ QgsRasterLayerRenderer::~QgsRasterLayerRenderer()
   delete mPipe;
 }
 
+void QgsRasterLayerRenderer::setPainter( QPainter *painter )
+{
+  mPainter = painter;
+}
+
 bool QgsRasterLayerRenderer::render()
 {
   if ( !mRasterViewPort )

src/core/raster/qgsrasterlayerrenderer.h

@@ -71,8 +71,8 @@ class CORE_EXPORT QgsRasterLayerRenderer : public QgsMapLayerRenderer
     QgsRasterLayerRenderer( QgsRasterLayer *layer, QgsRenderContext &rendererContext );
     ~QgsRasterLayerRenderer() override;
 
+    void setPainter( QPainter *painter ) override;
     bool render() override;
-
     QgsFeedback *feedback() const override;
 
   private: