added check for self-assignment to wxPrintData::operator=() (thanks HP aCC for a...

[wxWidgets.git] / src / msw / dc.cpp

diff --git a/src/msw/dc.cpp b/src/msw/dc.cpp
index 5a8608840b557b41ed29bf66f6f06143aa4e7a3f..d878f66645385b778425e3db9fc0a8992cdb4b23 100644 (file)
--- a/src/msw/dc.cpp
+++ b/src/msw/dc.cpp
@@ -399,6 +399,16 @@ wxBrushAttrsSetter::wxBrushAttrsSetter(wxMSWDCImpl& dc)
     }
 }
 
+// ----------------------------------------------------------------------------
+// wxDC MSW-specific methods
+// ----------------------------------------------------------------------------
+
+WXHDC wxDC::GetHDC() const
+{
+    wxMSWDCImpl * const impl = wxDynamicCast(GetImpl(), wxMSWDCImpl);
+    return impl ? impl->GetHDC() : 0;
+}
+
 // ---------------------------------------------------------------------------
 // wxMSWDCImpl
 // ---------------------------------------------------------------------------
@@ -1074,10 +1084,15 @@ void wxMSWDCImpl::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord hei
 
     wxBrushAttrsSetter cc(*this); // needed for wxSTIPPLE_MASK_OPAQUE handling
 
-    wxCoord x2 = (x+width);
-    wxCoord y2 = (y+height);
+    // +1 below makes the ellipse more similar to other platforms.
+    // In particular, DoDrawEllipse(x,y,1,1) should draw one point.
+    wxCoord x2 = x + width + 1;
+    wxCoord y2 = y + height + 1;
+
+    // Problem: Windows GDI Ellipse() with x2-x == y2-y == 3 and transparent
+    // pen doesn't draw anything. Should we provide a workaround?
 
-    (void)Ellipse(GetHdc(), XLOG2DEV(x), YLOG2DEV(y), XLOG2DEV(x2), YLOG2DEV(y2));
+    ::Ellipse(GetHdc(), XLOG2DEV(x), YLOG2DEV(y), XLOG2DEV(x2), YLOG2DEV(y2));
 
     CalcBoundingBox(x, y);
     CalcBoundingBox(x2, y2);