When creating an object in the GUI, its label wasn't initialized. Added

infrastructure for hole objects. (Postscript and KiCad output are still 
missing, and so does sanity checking.)

- gui_tool.c (new_obj_unconnected): set obj->name to NULL
- added hole objects to tool bar, all the various GUI routines, the .fpd
  parser, and the .fpd dumper



git-svn-id: http://svn.openmoko.org/trunk/eda/fped@5939 99fdad57-331a-0410-800a-d7fa5415bdb3

obj.c

@@ -112,6 +112,9 @@ int obj_anchors(struct obj *obj, struct vec ***anchors)
 	case ot_pad:
 		anchors[1] = &obj->u.pad.other;
 		return 2;
+	case ot_hole:
+		anchors[1] = &obj->u.hole.other;
+		return 2;
 	case ot_meas:
 		anchors[1] = &obj->u.meas.high;
 		return 2;
@@ -234,6 +237,11 @@ static int generate_objs(struct frame *frame, struct coord base, int active)
 			if (!ok)
 				goto error;
 			break;
+		case ot_hole:
+			if (!inst_hole(obj, obj->base ? obj->base->pos : base,
+			    obj->u.hole.other ? obj->u.hole.other->pos : base))
+				goto error;
+			break;
 		case ot_arc:
 			width = eval_unit_default(obj->u.arc.width, frame,
 			    DEFAULT_SILK_WIDTH);