loplugin:passstuffbyref in canvas

Change-Id: Idde288ab4bb7935e5da2a84190fd4b398961d358

6 files changed, 6 insertions, 6 deletions

diff --git a/canvas/source/cairo/cairo_devicehelper.hxx b/canvas/source/cairo/cairo_devicehelper.hxx
index 6e6e46f93f35..430f91ae071c 100644
--- a/canvas/source/cairo/cairo_devicehelper.hxx
+++ b/canvas/source/cairo/cairo_devicehelper.hxx
@@ -91,7 +91,7 @@ namespace cairocanvas
         void dumpScreenContent() const;
 
         OutputDevice* getOutputDevice() const { return mpRefDevice; }
-        ::cairo::SurfaceSharedPtr getSurface() { return mpSurface; }
+        const ::cairo::SurfaceSharedPtr& getSurface() { return mpSurface; }
         ::cairo::SurfaceSharedPtr createSurface( const ::basegfx::B2ISize& rSize, int aContent = CAIRO_CONTENT_COLOR_ALPHA );
         ::cairo::SurfaceSharedPtr createSurface( BitmapSystemData& rData, const Size& rSize );
 
diff --git a/canvas/source/cairo/cairo_spritedevicehelper.hxx b/canvas/source/cairo/cairo_spritedevicehelper.hxx
index d0f164864072..750b97f5bf6a 100644
--- a/canvas/source/cairo/cairo_spritedevicehelper.hxx
+++ b/canvas/source/cairo/cairo_spritedevicehelper.hxx
@@ -60,7 +60,7 @@ namespace cairocanvas
         void notifySizeUpdate( const css::awt::Rectangle& rBounds );
         void setSize( const ::basegfx::B2ISize& rSize );
 
-        ::cairo::SurfaceSharedPtr getBufferSurface() { return mpBufferSurface; }
+        const ::cairo::SurfaceSharedPtr& getBufferSurface() { return mpBufferSurface; }
         ::cairo::SurfaceSharedPtr getWindowSurface();
         ::cairo::SurfaceSharedPtr createSurface( const ::basegfx::B2ISize& rSize, int aContent = CAIRO_CONTENT_COLOR_ALPHA );
         ::cairo::SurfaceSharedPtr createSurface( BitmapSystemData& rData, const Size& rSize );
diff --git a/canvas/source/opengl/ogl_bitmapcanvashelper.hxx b/canvas/source/opengl/ogl_bitmapcanvashelper.hxx
index cfb8ff8163b2..7b3722c84dd2 100644
--- a/canvas/source/opengl/ogl_bitmapcanvashelper.hxx
+++ b/canvas/source/opengl/ogl_bitmapcanvashelper.hxx
@@ -49,7 +49,7 @@ namespace oglcanvas
         // BitmapCanvasHelper functionality
         // ================================
 
-        css::geometry::IntegerSize2D getSize() { return maSize; }
+        const css::geometry::IntegerSize2D& getSize() { return maSize; }
 
         css::uno::Reference< css::rendering::XBitmapCanvas > queryBitmapCanvas();
 
diff --git a/canvas/source/tools/pagemanager.hxx b/canvas/source/tools/pagemanager.hxx
index 9161fe438406..03a5470ea2af 100644
--- a/canvas/source/tools/pagemanager.hxx
+++ b/canvas/source/tools/pagemanager.hxx
@@ -41,7 +41,7 @@ namespace canvas
         // accelerated page, e.g. OpenGL texture.
         ::basegfx::B2ISize getPageSize() const;
 
-        canvas::IRenderModuleSharedPtr getRenderModule() const { return mpRenderModule; }
+        const canvas::IRenderModuleSharedPtr& getRenderModule() const { return mpRenderModule; }
 
         FragmentSharedPtr allocateSpace( const ::basegfx::B2ISize& rSize );
         void              free( const FragmentSharedPtr& pFragment );
diff --git a/canvas/source/vcl/devicehelper.hxx b/canvas/source/vcl/devicehelper.hxx
index 359f2b887c13..2a5d7ac2a42e 100644
--- a/canvas/source/vcl/devicehelper.hxx
+++ b/canvas/source/vcl/devicehelper.hxx
@@ -77,7 +77,7 @@ namespace vclcanvas
         css::uno::Reference<
             css::rendering::XColorSpace > getColorSpace() const;
 
-        OutDevProviderSharedPtr getOutDev() const { return mpOutDev; }
+        const OutDevProviderSharedPtr& getOutDev() const { return mpOutDev; }
 
         /** called when DumpScreenContent property is enabled on
             XGraphicDevice, and writes out bitmaps of current screen.
diff --git a/canvas/source/vcl/spritedevicehelper.hxx b/canvas/source/vcl/spritedevicehelper.hxx
index fc7e6ba51a60..8c5d7271c5d6 100644
--- a/canvas/source/vcl/spritedevicehelper.hxx
+++ b/canvas/source/vcl/spritedevicehelper.hxx
@@ -54,7 +54,7 @@ namespace vclcanvas
         css::uno::Any getSurfaceHandle() const;
 
         void dumpScreenContent() const;
-        BackBufferSharedPtr getBackBuffer() const { return mpBackBuffer; }
+        const BackBufferSharedPtr& getBackBuffer() const { return mpBackBuffer; }
 
         void notifySizeUpdate( const css::awt::Rectangle& rBounds );