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-rw-r--r--vcl/inc/salgdiimpl.hxx4
1 files changed, 4 insertions, 0 deletions
diff --git a/vcl/inc/salgdiimpl.hxx b/vcl/inc/salgdiimpl.hxx
index 035f896b2456..cb4bc35bd942 100644
--- a/vcl/inc/salgdiimpl.hxx
+++ b/vcl/inc/salgdiimpl.hxx
@@ -212,6 +212,10 @@ public:
const SalBitmap* pAlphaBitmap,
double fAlpha) = 0;
+ /// Used e.g. by canvas to know whether to cache the drawing.
+ /// See also tdf#138068.
+ virtual bool hasFastDrawTransformedBitmap() const = 0;
+
virtual bool drawAlphaRect(
tools::Long nX, tools::Long nY,
tools::Long nWidth, tools::Long nHeight,