Change from QPainter to QPaintDevice in the API for PDF rendering

* This is to be able to use QPagedPaintDevice::nextPage in the Multi plot rendering.

ApplicationCode/UserInterface/RiuMultiPlotWindow.cpp

@@ -284,9 +284,9 @@ void RiuMultiPlotWindow::scheduleReplotOfAllPlots()
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------
-void RiuMultiPlotWindow::renderTo( QPainter* painter )
+void RiuMultiPlotWindow::renderTo( QPaintDevice* paintDevice )
 {
-    doRenderTo( painter );
+    doRenderTo( paintDevice );
 }
 
 //--------------------------------------------------------------------------------------------------
@@ -789,22 +789,23 @@ std::pair<int, int>
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------
-void RiuMultiPlotWindow::doRenderTo( QPainter* painter )
+void RiuMultiPlotWindow::doRenderTo( QPaintDevice* paintDevice )
 {
+    QPainter painter( paintDevice );
     setSelectionsVisible( false );
-    m_plotTitle->render( painter );
+    m_plotTitle->render( &painter );
 
     for ( auto subTitle : subTitlesForVisiblePlots() )
     {
         if ( subTitle->isVisible() )
         {
-            subTitle->render( painter, m_plotWidgetFrame->mapToParent( subTitle->frameGeometry().topLeft() ) );
+            subTitle->render( &painter, m_plotWidgetFrame->mapToParent( subTitle->frameGeometry().topLeft() ) );
         }
     }
 
     for ( auto legend : legendsForVisiblePlots() )
     {
-        legend->render( painter, m_plotWidgetFrame->mapToParent( legend->frameGeometry().topLeft() ) );
+        legend->render( &painter, m_plotWidgetFrame->mapToParent( legend->frameGeometry().topLeft() ) );
     }
 
     for ( auto plotWidget : visiblePlotWidgets() )
@@ -814,7 +815,7 @@ void RiuMultiPlotWindow::doRenderTo( QPainter* painter )
         QPoint plotWidgetFrameTopLeft = m_plotWidgetFrame->frameGeometry().topLeft();
         plotWidgetGeometry.moveTo( plotWidgetTopLeft + plotWidgetFrameTopLeft );
 
-        plotWidget->renderTo( painter, plotWidgetGeometry );
+        plotWidget->renderTo( &painter, plotWidgetGeometry );
     }
 
     setSelectionsVisible( true );

ApplicationCode/UserInterface/RiuMultiPlotWindow.h

@@ -81,7 +81,7 @@ public:
     void         scheduleReplotOfAllPlots();
     virtual void updateVerticalScrollBar( double visibleMin, double visibleMax, double totalMin, double totalMax ) {}
 
-    void renderTo( QPainter* painter );
+    void renderTo( QPaintDevice* paintDevice );
 
 protected:
     void    contextMenuEvent( QContextMenuEvent* ) override;
@@ -114,7 +114,7 @@ protected:
 
     std::pair<int, int> findAvailableRowAndColumn( int startRow, int startColumn, int columnSpan, int columnCount ) const;
 
-    virtual void doRenderTo( QPainter* painter );
+    virtual void doRenderTo( QPaintDevice* paintDevice );
 
 private slots:
     virtual void performUpdate();

ApplicationCode/UserInterface/RiuQwtPlotWidget.cpp

@@ -606,7 +606,7 @@ bool RiuQwtPlotWidget::isZoomerActive() const
 //--------------------------------------------------------------------------------------------------
 void RiuQwtPlotWidget::endZoomOperations() {}
 
-//--------------------------------------------------------------------------------------------------
+//--------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------
 void RiuQwtPlotWidget::renderTo( QPainter* painter, const QRect& targetRect )
@@ -639,6 +639,15 @@ void RiuQwtPlotWidget::renderTo( QPainter* painter, const QRect& targetRect )
     }
 }
 
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+void RiuQwtPlotWidget::renderTo( QPaintDevice* paintDevice, const QRect& targetRect )
+{
+    QPainter painter( paintDevice );
+    renderTo( &painter, targetRect );
+}
+
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------

ApplicationCode/UserInterface/RiuQwtPlotWidget.h

@@ -43,6 +43,8 @@ class QwtPlotPicker;
 
 class QEvent;
 class QLabel;
+class QPainter;
+class QPaintDevice;
 
 //==================================================================================================
 //
@@ -103,7 +105,8 @@ public:
     void removeOverlayFrame( RiuDraggableOverlayFrame* overlayWidget );
     void updateLayout() override;
 
-    void renderTo( QPainter* painter, const QRect& targetRect );
+	void renderTo( QPainter* painter, const QRect& targetRect );
+    void renderTo( QPaintDevice* painter, const QRect& targetRect );
     int  overlayMargins() const;
 
 protected:

ApplicationCode/UserInterface/RiuWellLogPlot.cpp

@@ -40,10 +40,10 @@ RimWellLogPlot* RiuWellLogPlot::wellLogPlotDefinition()
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------
-void RiuWellLogPlot::doRenderTo( QPainter* painter )
+void RiuWellLogPlot::doRenderTo( QPaintDevice* paintDevice )
 {
     m_trackScrollBar->setVisible( false );
-    RiuMultiPlotWindow::doRenderTo( painter );
+    RiuMultiPlotWindow::doRenderTo( paintDevice );
     m_trackScrollBar->setVisible( true );
 }
 

ApplicationCode/UserInterface/RiuWellLogPlot.h

@@ -37,7 +37,7 @@ protected:
 
     void reinsertScrollbar();
     void alignScrollbar( int offset );
-    void doRenderTo( QPainter* painter ) override;
+    void doRenderTo( QPaintDevice* paintDevice ) override;
 
 private:
     RimWellLogPlot* wellLogPlotDefinition();