vcl/inc/image.h | 2 ++ vcl/source/gdi/impimage.cxx | 7 ++++++- 2 files changed, 8 insertions(+), 1 deletion(-)
New commits: commit aa7ab5695c06f7acb86cfe92e9dd0262f27ee950 Author: Tomaž Vajngerl <[email protected]> Date: Wed Sep 30 14:55:18 2015 +0200 create "disabled" image (icon) only if the original changes Currently we create a "disabled" version of bitmaps in "Image" class (used for toolbar icons for example) in every draw call. This is not really optimal. The solution is to calculate the checksum of the original and create a "disabled" version only if the checksum changes. (cherry picked from commit 86186de42e13426305cf3dc8dfb076aff6a5e4ae) Conflicts: vcl/source/gdi/impimage.cxx Change-Id: I6ed2d08c64fee028b479fedb35e4384f112e98e2 diff --git a/vcl/inc/image.h b/vcl/inc/image.h index 3aa9424..0dcc14e 100644 --- a/vcl/inc/image.h +++ b/vcl/inc/image.h @@ -40,6 +40,8 @@ public: private: BitmapEx maBmpEx; + BitmapChecksum maBitmapChecksum; + BitmapEx maDisabledBmpEx; BitmapEx* mpDisplayBmp; Size maSize; diff --git a/vcl/source/gdi/impimage.cxx b/vcl/source/gdi/impimage.cxx index 067b6e8..8ea787e 100644 --- a/vcl/source/gdi/impimage.cxx +++ b/vcl/source/gdi/impimage.cxx @@ -182,7 +182,12 @@ void ImplImageBmp::Draw( sal_uInt16 nPos, OutputDevice* pOutDev, if( nStyle & DrawImageFlags::Disable ) { - ImplUpdateDisabledBmpEx( nPos); + BitmapChecksum aChecksum = maBmpEx.GetChecksum(); + if (maBitmapChecksum != aChecksum) + { + maBitmapChecksum = aChecksum; + ImplUpdateDisabledBmpEx(nPos); + } pOutDev->DrawBitmapEx( rPos, aOutSize, aSrcPos, maSize, maDisabledBmpEx ); } else
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