X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/8f7b34a878bbcb2f71a0c7694e2a3bec51460218..53997bc265b691aaf12fafd259a5a2d2a27b0565:/src/mgl/dc.cpp

diff --git a/src/mgl/dc.cpp b/src/mgl/dc.cpp
index ecaa40dc6a..e33904e99a 100644
--- a/src/mgl/dc.cpp
+++ b/src/mgl/dc.cpp
@@ -1387,7 +1387,8 @@ wxSize wxDC::GetPPI() const
 bool wxDC::DoBlit(wxCoord xdest, wxCoord ydest,
                   wxCoord width, wxCoord height,
                   wxDC *source, wxCoord xsrc, wxCoord ysrc,
-                  int rop, bool useMask)
+                  int rop, bool useMask,
+                  wxCoord xsrcMask, wxCoord ysrcMask)
 {
     wxCHECK_MSG( Ok(), FALSE, wxT("invalid dc") );
     wxCHECK_MSG( source, FALSE, wxT("invalid source dc") );
@@ -1396,6 +1397,17 @@ bool wxDC::DoBlit(wxCoord xdest, wxCoord ydest,
     xsrc = source->LogicalToDeviceX(xsrc);
     ysrc = source->LogicalToDeviceY(ysrc);
 
+    /* TODO: use the mask origin when drawing transparently */
+    if (xsrcMask == -1 && ysrcMask == -1)
+    {
+        xsrcMask = xsrc; ysrcMask = ysrc;
+    }
+    else
+    {
+        xsrcMask = source->LogicalToDeviceX(xsrcMask);
+        ysrcMask = source->LogicalToDeviceY(ysrcMask);
+    }
+
     CalcBoundingBox(xdest, ydest);
     CalcBoundingBox(xdest + width, ydest + height);