tweak GetBitmap methods in BitmapEx

so we return a const& for the normal case, just like other methods,
which reduces copying.

This revealed that CreateDisplayBitmap in Bitmap can be const.

Change-Id: I9f9b9ff0c52d7e95eaae62af152218be8847dd63
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/86836
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

1 files changed, 3 insertions, 3 deletions

diff --git a/slideshow/source/engine/shapes/gdimtftools.cxx b/slideshow/source/engine/shapes/gdimtftools.cxx
index 19ea3d4f51b7..2a7bb51a4ae8 100644
--- a/slideshow/source/engine/shapes/gdimtftools.cxx
+++ b/slideshow/source/engine/shapes/gdimtftools.cxx
@@ -315,14 +315,14 @@ bool getAnimationFromGraphic( VectorOfMtfAnimationFrames&   o_rFrames,
             {
                 // #i70772# react on no mask
                 const Bitmap aMask(rAnimationBitmap.maBitmapEx.GetMask());
-                const Bitmap aContent(rAnimationBitmap.maBitmapEx.GetBitmap());
+                const Bitmap & rContent(rAnimationBitmap.maBitmapEx.GetBitmap());
 
                 pVDevMask->Erase();
-                pVDev->DrawBitmap(rAnimationBitmap.maPositionPixel, aContent);
+                pVDev->DrawBitmap(rAnimationBitmap.maPositionPixel, rContent);
 
                 if(aMask.IsEmpty())
                 {
-                    const tools::Rectangle aRect(rAnimationBitmap.maPositionPixel, aContent.GetSizePixel());
+                    const tools::Rectangle aRect(rAnimationBitmap.maPositionPixel, rContent.GetSizePixel());
                     pVDevMask->SetFillColor( COL_BLACK);
                     pVDevMask->SetLineColor();
                     pVDevMask->DrawRect(aRect);