gdiplus: Added GdipAddPathEllipse.

dlls/gdiplus/gdiplus.spec

@@ -14,7 +14,7 @@
 @ stub GdipAddPathCurve3I
 @ stub GdipAddPathCurve
 @ stub GdipAddPathCurveI
-@ stub GdipAddPathEllipse
+@ stdcall GdipAddPathEllipse(ptr long long long long)
 @ stub GdipAddPathEllipseI
 @ stdcall GdipAddPathLine2(ptr ptr long)
 @ stub GdipAddPathLine2I

dlls/gdiplus/graphicspath.c

@@ -121,6 +121,36 @@ GpStatus WINGDIPAPI GdipAddPathBeziers(GpPath *path, GDIPCONST GpPointF *points,
     return Ok;
 }
 
+GpStatus WINGDIPAPI GdipAddPathEllipse(GpPath *path, REAL x, REAL y, REAL width,
+    REAL height)
+{
+    INT old_count, numpts;
+
+    if(!path)
+        return InvalidParameter;
+
+    if(!lengthen_path(path, MAX_ARC_PTS))
+        return OutOfMemory;
+
+    old_count = path->pathdata.Count;
+    if((numpts = arc2polybezier(&path->pathdata.Points[old_count],  x, y, width,
+                               height, 0.0, 360.0)) != MAX_ARC_PTS){
+        ERR("expected %d points but got %d\n", MAX_ARC_PTS, numpts);
+        return GenericError;
+    }
+
+    memset(&path->pathdata.Types[old_count + 1], PathPointTypeBezier,
+           MAX_ARC_PTS - 1);
+
+    /* An ellipse is an instrinsic figure (always its own subpath). */
+    path->pathdata.Types[old_count] = PathPointTypeStart;
+    path->pathdata.Types[old_count + MAX_ARC_PTS - 1] |= PathPointTypeCloseSubpath;
+    path->newfigure = TRUE;
+    path->pathdata.Count += MAX_ARC_PTS;
+
+    return Ok;
+}
+
 GpStatus WINGDIPAPI GdipAddPathLine2(GpPath *path, GDIPCONST GpPointF *points,
     INT count)
 {

include/gdiplusflat.h

@@ -89,6 +89,7 @@ GpStatus WINGDIPAPI GdipSetSolidFillColor(GpSolidFill*,ARGB);
 
 GpStatus WINGDIPAPI GdipAddPathArc(GpPath*,REAL,REAL,REAL,REAL,REAL,REAL);
 GpStatus WINGDIPAPI GdipAddPathBeziers(GpPath*,GDIPCONST GpPointF*,INT);
+GpStatus WINGDIPAPI GdipAddPathEllipse(GpPath*,REAL,REAL,REAL,REAL);
 GpStatus WINGDIPAPI GdipAddPathLine2(GpPath*,GDIPCONST GpPointF*,INT);
 GpStatus WINGDIPAPI GdipAddPathPath(GpPath*,GDIPCONST GpPath*,BOOL);
 GpStatus WINGDIPAPI GdipClosePathFigure(GpPath*);