vcl: migrate GetDownsampledBitmap() from OutputDevice to vcl::bitmap

Change-Id: Iee6caa8292472a3acca66d670a113b701f4b637e
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/121581
Tested-by: Jenkins
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>

1 files changed, 0 insertions, 68 deletions

diff --git a/vcl/source/outdev/bitmap.cxx b/vcl/source/outdev/bitmap.cxx
index 5466340c2bfe..6f548cbfc7a3 100644
--- a/vcl/source/outdev/bitmap.cxx
+++ b/vcl/source/outdev/bitmap.cxx
@@ -170,74 +170,6 @@ void OutputDevice::DrawBitmap( const Point& rDestPt, const Size& rDestSize,
     }
 }
 
-Bitmap OutputDevice::GetDownsampledBitmap( const Size& rDstSizeTwip,
-                                           const Point& rSrcPt, const Size& rSrcSz,
-                                           const Bitmap& rBmp, tools::Long nMaxBmpDPIX, tools::Long nMaxBmpDPIY )
-{
-    Bitmap aBmp( rBmp );
-
-    if( !aBmp.IsEmpty() )
-    {
-        const tools::Rectangle aBmpRect( Point(), aBmp.GetSizePixel() );
-        tools::Rectangle       aSrcRect( rSrcPt, rSrcSz );
-
-        // do cropping if necessary
-        if( aSrcRect.Intersection( aBmpRect ) != aBmpRect )
-        {
-            if( !aSrcRect.IsEmpty() )
-                aBmp.Crop( aSrcRect );
-            else
-                aBmp.SetEmpty();
-        }
-
-        if( !aBmp.IsEmpty() )
-        {
-            // do downsampling if necessary
-            // #103209# Normalize size (mirroring has to happen outside of this method)
-            Size aDstSizeTwip(std::abs(rDstSizeTwip.Width()), std::abs(rDstSizeTwip.Height()));
-
-            const Size      aBmpSize( aBmp.GetSizePixel() );
-            const double    fBmpPixelX = aBmpSize.Width();
-            const double    fBmpPixelY = aBmpSize.Height();
-            const double fMaxPixelX
-                = o3tl::convert<double>(aDstSizeTwip.Width(), o3tl::Length::twip, o3tl::Length::in)
-                  * nMaxBmpDPIX;
-            const double fMaxPixelY
-                = o3tl::convert<double>(aDstSizeTwip.Height(), o3tl::Length::twip, o3tl::Length::in)
-                  * nMaxBmpDPIY;
-
-            // check, if the bitmap DPI exceeds the maximum DPI (allow 4 pixel rounding tolerance)
-            if( ( ( fBmpPixelX > ( fMaxPixelX + 4 ) ) ||
-                  ( fBmpPixelY > ( fMaxPixelY + 4 ) ) ) &&
-                ( fBmpPixelY > 0.0 ) && ( fMaxPixelY > 0.0 ) )
-            {
-                // do scaling
-                Size            aNewBmpSize;
-                const double    fBmpWH = fBmpPixelX / fBmpPixelY;
-                const double    fMaxWH = fMaxPixelX / fMaxPixelY;
-
-                if( fBmpWH < fMaxWH )
-                {
-                    aNewBmpSize.setWidth( FRound( fMaxPixelY * fBmpWH ) );
-                    aNewBmpSize.setHeight( FRound( fMaxPixelY ) );
-                }
-                else if( fBmpWH > 0.0 )
-                {
-                    aNewBmpSize.setWidth( FRound( fMaxPixelX ) );
-                    aNewBmpSize.setHeight( FRound( fMaxPixelX / fBmpWH) );
-                }
-
-                if( aNewBmpSize.Width() && aNewBmpSize.Height() )
-                    aBmp.Scale( aNewBmpSize );
-                else
-                    aBmp.SetEmpty();
-            }
-        }
-    }
-
-    return aBmp;
-}
-
 Bitmap OutputDevice::GetBitmap( const Point& rSrcPt, const Size& rSize ) const
 {
     Bitmap  aBmp;