Index: trunk/src/obj_pstk.h
===================================================================
--- trunk/src/obj_pstk.h	(revision 12780)
+++ trunk/src/obj_pstk.h	(revision 12781)
@@ -134,8 +134,8 @@
 /* Deep copy a prototype */
 void pcb_pstk_proto_copy(pcb_pstk_proto_t *dst, const pcb_pstk_proto_t *src);
 
-/* grow (or shrink) a prototype to or by offs - change the proto in place */
-void pcb_pstk_proto_grow(pcb_pstk_proto_t *proto, pcb_bool is_absolute, pcb_coord_t offs);
+/* grow (or shrink) a prototype to or by val - change the proto in place */
+void pcb_pstk_proto_grow(pcb_pstk_proto_t *proto, pcb_bool is_absolute, pcb_coord_t val);
 
 
 /*** hash ***/
Index: trunk/src/obj_pstk_proto.c
===================================================================
--- trunk/src/obj_pstk_proto.c	(revision 12780)
+++ trunk/src/obj_pstk_proto.c	(revision 12781)
@@ -613,9 +613,39 @@
 	return ts;
 }
 
-void pcb_pstk_proto_grow(pcb_pstk_proto_t *proto, pcb_bool is_absolute, pcb_coord_t offs)
+static void pcb_pstk_shape_grow(pcb_pstk_shape_t *shp, pcb_bool is_absolute, pcb_coord_t val)
 {
+	switch(shp->shape) {
+		case PCB_PSSH_LINE:
+			if (is_absolute)
+				shp->data.line.thickness = val;
+			else
+				shp->data.line.thickness += val;
+			if (shp->data.line.thickness < 1)
+				shp->data.line.thickness = 1;
+			break;
+		case PCB_PSSH_CIRC:
+			if (is_absolute)
+				shp->data.circ.dia = val;
+			else
+				shp->data.circ.dia += val;
+			if (shp->data.circ.dia < 1)
+				shp->data.circ.dia = 1;
+			break;
+		case PCB_PSSH_POLY:
+#warning padstack TODO
+			break;
+	}
+}
 
+void pcb_pstk_proto_grow(pcb_pstk_proto_t *proto, pcb_bool is_absolute, pcb_coord_t val)
+{
+	int n, i;
+
+	/* do the same growth on all shapes of all transformed variants */
+	for(n = 0; n < proto->tr.used; n++)
+		for(i = 0; i < proto->tr.array[n].len; i++)
+			pcb_pstk_shape_grow(&proto->tr.array[n].shape[i], is_absolute, val);
 }