Fixed appending circle/ellipse to wxGraphicsPath with Direct2D renderer.

Circle/ellipse should be appended as a closed sub-path and the current point after the operation should be moved to "the rightmost point" of the figure ((x+r,y) and (x+w,y+h/2) respectively).

See #17520

interface/wx/graphics.h

@@ -51,6 +51,7 @@ public:
     /**
         Appends a circle around (@a x,@a y) with radius @a r as a new closed
         subpath.
+        After this call the current point will be at (@a x+@a r, @a y).
     */
     virtual void AddCircle(wxDouble x, wxDouble y, wxDouble r);
 
@@ -70,7 +71,9 @@ public:
                          const wxPoint2DDouble& e);
 
     /**
-        Appends an ellipse fitting into the passed in rectangle.
+        Appends an ellipse fitting into the passed in rectangle as a new
+        closed subpath.
+        After this call the current point will be at (@a x+@a w, @a y+@a h/2).
     */
     virtual void AddEllipse(wxDouble x, wxDouble y, wxDouble w, wxDouble h);
 

src/msw/graphicsd2d.cpp

@@ -1239,7 +1239,17 @@ void wxD2DPathData::AddEllipse(wxDouble x, wxDouble y, wxDouble w, wxDouble h)
     const wxDouble rx = w / 2.0;
     const wxDouble ry = h / 2.0;
 
-    MoveToPoint(x, y + ry);
+    MoveToPoint(x + w, y + ry);
+
+    D2D1_ARC_SEGMENT arcSegmentLower =
+    {
+        D2D1::Point2((FLOAT)(x), (FLOAT)(y + ry)),     // end point
+        D2D1::SizeF((FLOAT)(rx), (FLOAT)(ry)),         // size
+        0.0f,
+        D2D1_SWEEP_DIRECTION_CLOCKWISE,
+        D2D1_ARC_SIZE_SMALL
+    };
+    m_geometrySink->AddArc(arcSegmentLower);
 
     D2D1_ARC_SEGMENT arcSegmentUpper =
     {
@@ -1251,15 +1261,7 @@ void wxD2DPathData::AddEllipse(wxDouble x, wxDouble y, wxDouble w, wxDouble h)
     };
     m_geometrySink->AddArc(arcSegmentUpper);
 
-    D2D1_ARC_SEGMENT arcSegmentLower =
-    {
-        D2D1::Point2((FLOAT)(x), (FLOAT)(y + ry)),     // end point
-        D2D1::SizeF((FLOAT)(rx), (FLOAT)(ry)),         // size
-        0.0f,
-        D2D1_SWEEP_DIRECTION_CLOCKWISE,
-        D2D1_ARC_SIZE_SMALL
-    };
-    m_geometrySink->AddArc(arcSegmentLower);
+    CloseSubpath();
 }
 
 // gets the last point of the current path, (0,0) if not yet set