From 065806e5f169662ff6bdc0fe842d702bf6065e43 Mon Sep 17 00:00:00 2001
From: James Tabor <james.tabor@reactos.org>
Date: Fri, 10 Nov 2006 12:50:34 +0000
Subject: [PATCH] Sync up PATH_Arc and PATH_Ellipse with Wine.

svn path=/trunk/; revision=24713
---
 .../subsystems/win32/win32k/include/path.h    |  2 +-
 .../subsystems/win32/win32k/objects/line.c    |  2 +-
 .../subsystems/win32/win32k/objects/path.c    | 24 ++++++++++++++++---
 3 files changed, 23 insertions(+), 5 deletions(-)

diff --git a/reactos/subsystems/win32/win32k/include/path.h b/reactos/subsystems/win32/win32k/include/path.h
index 3ba47d2d556..d489340b967 100644
--- a/reactos/subsystems/win32/win32k/include/path.h
+++ b/reactos/subsystems/win32/win32k/include/path.h
@@ -3,7 +3,7 @@
 
 #define PATH_IsPathOpen(path) ((path).state==PATH_Open)
 
-BOOL FASTCALL PATH_Arc (PDC dc, INT x1, INT y1, INT x2, INT y2, INT xStart, INT yStart, INT xEnd, INT yEnd);
+BOOL FASTCALL PATH_Arc (PDC dc, INT x1, INT y1, INT x2, INT y2, INT xStart, INT yStart, INT xEnd, INT yEnd, INT lines);
 BOOL FASTCALL PATH_AssignGdiPath (GdiPath *pPathDest, const GdiPath *pPathSrc);
 VOID FASTCALL PATH_DestroyGdiPath (GdiPath *pPath);
 BOOL FASTCALL PATH_Ellipse (PDC dc, INT x1, INT y1, INT x2, INT y2);
diff --git a/reactos/subsystems/win32/win32k/objects/line.c b/reactos/subsystems/win32/win32k/objects/line.c
index e2288a8457f..9773e95a831 100644
--- a/reactos/subsystems/win32/win32k/objects/line.c
+++ b/reactos/subsystems/win32/win32k/objects/line.c
@@ -299,7 +299,7 @@ IntGdiArc(DC  *dc,
   if(PATH_IsPathOpen(dc->w.path))
   {
     return PATH_Arc(dc, LeftRect, TopRect, RightRect, BottomRect,
-                    XStartArc, YStartArc, XEndArc, YEndArc);
+                    XStartArc, YStartArc, XEndArc, YEndArc, GdiTypeArc );
   }
 
   // FIXME
diff --git a/reactos/subsystems/win32/win32k/objects/path.c b/reactos/subsystems/win32/win32k/objects/path.c
index 91862d5f3d5..c2455336975 100644
--- a/reactos/subsystems/win32/win32k/objects/path.c
+++ b/reactos/subsystems/win32/win32k/objects/path.c
@@ -720,24 +720,29 @@ PATH_Ellipse ( PDC dc, INT x1, INT y1, INT x2, INT y2 )
 {
   /* TODO: This should probably be revised to call PATH_AngleArc */
   /* (once it exists) */
-  return PATH_Arc ( dc, x1, y1, x2, y2, x1, (y1+y2)/2, x1, (y1+y2)/2 );
+  BOOL Ret = PATH_Arc ( dc, x1, y1, x2, y2, x1, (y1+y2)/2, x1, (y1+y2)/2, GdiTypeArc );
+  if (Ret) IntGdiCloseFigure(dc);
+  return Ret;
 }
 
 /* PATH_Arc
  *
  * Should be called when a call to Arc is performed on a DC that has
  * an open path. This adds up to five Bezier splines representing the arc
- * to the path. Returns TRUE if successful, else FALSE.
+ * to the path. When 'lines' is 1, we add 1 extra line to get a chord,
+ * and when 'lines' is 2, we add 2 extra lines to get a pie.
+ * Returns TRUE if successful, else FALSE.
  */
 BOOL
 FASTCALL
 PATH_Arc ( PDC dc, INT x1, INT y1, INT x2, INT y2,
-   INT xStart, INT yStart, INT xEnd, INT yEnd)
+   INT xStart, INT yStart, INT xEnd, INT yEnd, INT lines)
 {
   double  angleStart, angleEnd, angleStartQuadrant, angleEndQuadrant=0.0;
           /* Initialize angleEndQuadrant to silence gcc's warning */
   double  x, y;
   FLOAT_POINT corners[2], pointStart, pointEnd;
+  POINT   centre;
   BOOL    start, end;
   INT     temp;
   BOOL    clockwise;
@@ -858,6 +863,19 @@ PATH_Arc ( PDC dc, INT x1, INT y1, INT x2, INT y2,
     start = FALSE;
   } while(!end);
 
+  /* chord: close figure. pie: add line and close figure */
+  if(lines==GdiTypeChord) // 1
+   {
+      IntGdiCloseFigure(dc);
+   }
+  else if(lines==GdiTypePie) // 2
+   {
+      centre.x = (corners[0].x+corners[1].x)/2;
+      centre.y = (corners[0].y+corners[1].y)/2;
+      if(!PATH_AddEntry(&dc->w.path, &centre, PT_LINETO | PT_CLOSEFIGURE))
+         return FALSE;
+   }
+
   return TRUE;
 }