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-rw-r--r--generic/Curve.c22
1 files changed, 15 insertions, 7 deletions
diff --git a/generic/Curve.c b/generic/Curve.c
index 1b14ae3..a31210f 100644
--- a/generic/Curve.c
+++ b/generic/Curve.c
@@ -1785,7 +1785,7 @@ Coords(Item item,
**********************************************************************************
*/
#ifdef GPC
-static void
+static int
Contour(Item item,
int cmd,
ZnPoly *poly)
@@ -1793,13 +1793,21 @@ Contour(Item item,
CurveItem cv = (CurveItem) item;
ZnPoly rpoly;
- POLY_INIT(&rpoly);
- gpc_polygon_clip(cmd, (gpc_polygon *) &cv->shape, (gpc_polygon *) poly,
- (gpc_polygon *) &rpoly);
-
- POLY_SET(&cv->shape, &rpoly);
+ switch (cmd) {
+ case GPC_DIFF:
+ case GPC_INT:
+ case GPC_UNION:
+ case GPC_XOR:
+ POLY_INIT(&rpoly);
+ gpc_polygon_clip(cmd, (gpc_polygon *) &cv->shape, (gpc_polygon *) poly,
+ (gpc_polygon *) &rpoly);
+
+ POLY_SET(&cv->shape, &rpoly);
+
+ ITEM.Invalidate(item, ZN_COORDS_FLAG);
+ }
- ITEM.Invalidate(item, ZN_COORDS_FLAG);
+ return cv->shape.num_contours;
}
#endif