X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/32b8ec418aee4e38877d4cb79e2984c766dcc358..0d58bb65789a8efec581d2beb2117669d1d1db9d:/src/mgl/dc.cpp?ds=sidebyside

diff --git a/src/mgl/dc.cpp b/src/mgl/dc.cpp
index edbfd13c3b..e33904e99a 100644
--- a/src/mgl/dc.cpp
+++ b/src/mgl/dc.cpp
@@ -4,7 +4,7 @@
 // Author:      Vaclav Slavik
 // Created:     2001/03/09
 // RCS-ID:      $Id$
-// Copyright:   (c) Vaclav Slavik
+// Copyright:   (c) 2001 SciTech Software, Inc. (www.scitechsoft.com)
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
@@ -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);