gdiplus: Implementation of function GdipDrawEllipse.

dlls/gdiplus/gdiplus.spec

@@ -170,8 +170,8 @@
 @ stdcall GdipDrawCurve(ptr ptr ptr long)
 @ stdcall GdipDrawCurveI(ptr ptr ptr long)
 @ stub GdipDrawDriverString
-@ stub GdipDrawEllipse
-@ stub GdipDrawEllipseI
+@ stdcall GdipDrawEllipse(ptr ptr long long long long)
+@ stdcall GdipDrawEllipseI(ptr ptr long long long long)
 @ stdcall GdipDrawImage(ptr ptr long long)
 @ stub GdipDrawImageFX
 @ stdcall GdipDrawImageI(ptr ptr long long)

dlls/gdiplus/graphics.c

@@ -1106,6 +1106,40 @@ GpStatus WINGDIPAPI GdipDrawCurve2I(GpGraphics *graphics, GpPen *pen,
     return ret;
 }
 
+GpStatus WINGDIPAPI GdipDrawEllipse(GpGraphics *graphics, GpPen *pen, REAL x,
+    REAL y, REAL width, REAL height)
+{
+    INT save_state;
+    GpPointF ptf[2];
+    POINT pti[2];
+
+    if(!graphics || !pen)
+        return InvalidParameter;
+
+    ptf[0].X = x;
+    ptf[0].Y = y;
+    ptf[1].X = x + width;
+    ptf[1].Y = y + height;
+
+    save_state = prepare_dc(graphics, pen);
+    SelectObject(graphics->hdc, GetStockObject(NULL_BRUSH));
+
+    transform_and_round_points(graphics, pti, ptf, 2);
+
+    Ellipse(graphics->hdc, pti[0].x, pti[0].y, pti[1].x, pti[1].y);
+
+    restore_dc(graphics, save_state);
+
+    return Ok;
+}
+
+GpStatus WINGDIPAPI GdipDrawEllipseI(GpGraphics *graphics, GpPen *pen, INT x,
+    INT y, INT width, INT height)
+{
+    return GdipDrawEllipse(graphics,pen,(REAL)x,(REAL)y,(REAL)width,(REAL)height);
+}
+
+
 GpStatus WINGDIPAPI GdipDrawImage(GpGraphics *graphics, GpImage *image, REAL x, REAL y)
 {
     /* IPicture::Render uses LONG coords */