From 09a105503755858a5c9e9d78cf3c0349f8eea052 Mon Sep 17 00:00:00 2001
From: lecoanet
Date: Tue, 5 Nov 2002 09:51:08 +0000
Subject: Suppression dans la structure ZnPoly de holes et migration de cw dans
 la structure ZnContour. Ajout de controls � la structure ZnContour pour faire
 de paths. Ajout de l'enum ZnContourCmd pour les op�rations sur les contours.
 Migration de fan de la structure ZnTristrip � la structure ZnStrip pour
 g�n�raliser (Tesselateur GLU). Ajout de  ZnCombineData pour assurer le
 support du tesselateur GLU.

---
 generic/Types.h | 45 +++++++++++++++++++++++++--------------------
 1 file changed, 25 insertions(+), 20 deletions(-)

diff --git a/generic/Types.h b/generic/Types.h
index fec26b0..f46a4a0 100644
--- a/generic/Types.h
+++ b/generic/Types.h
@@ -47,8 +47,8 @@ extern "C" {
 typedef void		*ZnItemClassId;
 typedef	void		*ZnItemId;
 
-typedef double		ZnReal;	/* Keep it a double for GPC & libart. */
-typedef int		ZnBool;	/* Keep it an int to keep Tk & GPC happy */
+typedef double		ZnReal;	/* Keep it a double for GL. */
+typedef int		ZnBool;	/* Keep it an int to keep Tk happy */
 typedef ZnReal		ZnPos;
 typedef ZnReal		ZnDim;
 typedef XColor		*ZnColor;
@@ -67,44 +67,49 @@ typedef struct {
 typedef struct {
   int		num_points;
   ZnPoint	*points;
+  char		*controls;
+  ZnBool	cw;
 } ZnContour;
 
 /*
- * contour1/hole1 can be used to store a single contour
- * without having to alloc the holes & contours arrays.
- * The first three fields must be in sync with the gpc_polygon
- * struct when using gpc.
+ * contour1 can be used to store a single contour
+ * without having to alloc the contours array.
  */
 typedef struct {
   int		num_contours;
-  ZnBool	*holes;
   ZnContour	*contours;
-  ZnBool	*cw;
-  ZnBool	hole1;
   ZnContour	contour1;
-  ZnBool	cw1;
 } ZnPoly;
 
+/*
+ * Keep this enum in sync with op_strings in Contour()
+ * in tkZinc.c.
+ */
+typedef enum {
+  ZN_CONTOUR_ADD, ZN_CONTOUR_ADD_HOLE, ZN_CONTOUR_REMOVE
+} ZnContourCmd;
+
 typedef struct {
   int		num_points;
   ZnPoint	*points;
+  ZnBool	fan;	/* When using a fan, all contour vertices must be
+			 * included to describe the contour as a polygon
+			 * (clipping code use that to speed up region
+			 * rendering) and the center must be the first
+			 * vertex. */
 } ZnStrip;
   
-/*
- * The first two fields must be kept in sync with gpc_tristrip
- * when using gpc.
- */
 typedef struct {
   int		num_strips;
   ZnStrip	*strips;
   ZnStrip	strip1;
-  ZnBool	fan;		/* When using a fan, all contour vertices must be
-				 * included to describe the contour as a polygon
-				 * (clipping code use that to speed up region
-				 * rendering). */
-  ZnPoint	center;
 } ZnTriStrip;
-  
+
+typedef struct _ZnCombineData {
+  ZnReal		v[2];
+  struct _ZnCombineData	*next;
+} ZnCombineData;
+
 /*
  * ZnBBox: orig is into the area while corner is not.
  * Thus the test: ((bbox.orig.x == bbox.corner.x) ||
-- 
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