make Bitmap/BitmapEx constructors explicit

and add
BitmapEx::operator=(Bitmap const &)
Image::Image(Bitmap const &)
to lessen the fallout

Change-Id: Iff5fab88d167a7be739c370c9933d36c297bc61c
Reviewed-on: https://gerrit.libreoffice.org/54162
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/vcl/bitmap.hxx b/include/vcl/bitmap.hxx
index 9dfca1de0af1..6ba6dd43378c 100644
--- a/include/vcl/bitmap.hxx
+++ b/include/vcl/bitmap.hxx
@@ -124,7 +124,7 @@ public:
                             Bitmap();
                             Bitmap( const Bitmap& rBitmap );
                             Bitmap( const Size& rSizePixel, sal_uInt16 nBitCount, const BitmapPalette* pPal = nullptr );
-                            Bitmap( SalBitmap* pSalBitmap );
+    explicit                Bitmap( SalBitmap* pSalBitmap );
     virtual                 ~Bitmap();
 
     Bitmap&                 operator=( const Bitmap& rBitmap );