;;-----------------=={ AutoLabel Attributes }==---------------;;
;; ;;
;; Automatically labels a specific attribute in a set of ;;
;; blocks, renumbering if blocks are added, copied or ;;
;; erased. ;;
;;------------------------------------------------------------;;
;; Author: Lee Mac, Copyright © 2011 - www.lee-mac.com ;;
;;------------------------------------------------------------;;
;; Version 1.0 - 14-09-2011 ;;
;;------------------------------------------------------------;;

;;------------------------------------------------------------;;
;; Settings ;;
;;------------------------------------------------------------;;

;; [Note: Block names and Attribute Tags are *not* case-sensitive]

(setq *blockname* "ПП-" ;; Name of Block to be Updated
*blocktag* "num_pp" ;; Attribute Tag to be Updated
)

;;------------------------------------------------------------;;
;; Main Program ;;
;;------------------------------------------------------------;;

(defun ObjectReactorCallback:RenumberBlocks ( object reactor params )
(setq *reactor* reactor)
(vlr-command-reactor "temp" '((:vlr-commandended . CommandReactorCallback:RenumberBlocks)))
(vlr-remove reactor)
(princ)
)

;;------------------------------------------------------------;;

(defun CommandReactorCallback:RenumberBlocks ( reactor params / e f i l n s )
(if reactor (vlr-remove reactor))
(if
(and
(not *undoflag*)
(setq s (ssget "_X" *filter*))
)
(progn
(setq n 0)
(repeat (setq i (sslength s))
(if (eq *blockname*
(AutoLabel:EffectiveName
(setq o (vlax-ename->vla-object (setq e (ssname s (setq i (1- i))))))
)
)
(progn
(setq e (entnext e)
l (entget e)
f nil
)
(while (and (not f) (eq "ATTRIB" (cdr (assoc 0 l))))
(if (eq *blocktag* (strcase (cdr (assoc 2 l))))
(setq f (entmod (subst (cons 1 (itoa (setq n (1+ n)))) (assoc 1 l) l)))
)
(setq e (entnext e)
l (entget e)
)
)
(if (and *reactor* (not (member o (vlr-owners *reactor*))))
(vlr-owner-add *reactor* o)
)
)
)
)
)
)
(if *reactor*
(progn (vlr-add *reactor*) (setq *reactor* nil))
)
(princ)
)

;;------------------------------------------------------------;;

(defun CommandReactorCallback:UndoCheck ( reactor params )
(setq *undoflag* (wcmatch (strcase (car params)) "*U,*UNDO"))
(princ)
)

;;------------------------------------------------------------;;

(defun CommandReactorCallback:BlockInserted ( reactor params / e l )
(if
(and
(not *undoflag*)
(wcmatch (strcase (car params)) "*I,*INSERT,*EXECUTETOOL")
(setq e (entlast))
(setq l (entget e))
(eq "INSERT" (cdr (assoc 0 l)))
(= 1 (cdr (assoc 66 l)))
(eq *blockname* (AutoLabel:EffectiveName (vlax-ename->vla-object e)))
)
(AutoLabel:GetNewNumber e)
)
(princ)
)

;;------------------------------------------------------------;;

(defun AutoLabel:GetNewNumber ( ent / e f i l n r s )
(if (setq s (ssget "_X" *filter*))
(progn
(setq n 0)
(repeat (setq i (sslength s))
(if (eq *blockname*
(AutoLabel:Effectivename
(vlax-ename->vla-object (ssname s (setq i (1- i))))
)
)
(setq n (1+ n))
)
)
(setq e (entnext ent)
l (entget e)
)
(while (and (not f) (eq "ATTRIB" (cdr (assoc 0 l))))
(if (eq *blocktag* (strcase (cdr (assoc 2 l))))
(setq f (entmod (subst (cons 1 (itoa n)) (assoc 1 l) l)))
)
(setq e (entnext e)
l (entget e)
)
)
(if
(setq r
(vl-some
(function
(lambda ( r ) (if (eq *reacdata* (vlr-data r)) r))
)
(cdar (vlr-reactors :vlr-object-reactor))
)
)
(vlr-owner-add r (vlax-ename->vla-object ent))
)
)
)
(princ)
)

;;------------------------------------------------------------;;

(defun AutoLabel:EffectiveName ( obj )
(strcase
(if (vlax-property-available-p obj 'effectivename)
(vla-get-effectivename obj)
(vla-get-name obj)
)
)
)

;;------------------------------------------------------------;;
;; Loading Expressions ;;
;;------------------------------------------------------------;;

(vl-load-com)

(
(lambda ( / i s l o )
(setq
*blocktag* (strcase *blocktag*)
*blockname* (strcase *blockname*)
*reacdata* "AutoBlockLabel"
*reactor* nil
*undoflag* nil
)
(foreach r1 (vlr-reactors)
(foreach r2 (cdr r1)
(if (eq *reacdata* (vlr-data r2)) (vlr-remove r2))
)
)
(if
(setq s
(ssget "_X"
(setq *filter*
(list
'(0 . "INSERT")
'(66 . 1)
(cons 2 (strcat "`*U*," *blockname*))
(cons 410 (getvar 'CTAB))
)
)
)
)
(progn
(repeat (setq i (sslength s))
(if (eq *blockname*
(AutoLabel:EffectiveName
(setq o (vlax-ename->vla-object (ssname s (setq i (1- i)))))
)
)
(setq l (cons o l))
)
)
(CommandReactorCallback:RenumberBlocks nil nil)
(vlr-object-reactor l *reacdata*
(list
(cons :vlr-erased 'ObjectReactorCallback:RenumberBlocks)
(cons :vlr-copied 'ObjectReactorCallback:RenumberBlocks)
(cons :vlr-unerased 'ObjectReactorCallback:RenumberBlocks)
)
)
(vlr-command-reactor *reacdata*
(list
(cons :vlr-commandwillstart 'CommandReactorCallback:UndoCheck)
(cons :vlr-commandended 'CommandReactorCallback:BlockInserted)
)
)
)
)
)
)

(princ)

;;------------------------------------------------------------;;
;; End of File ;;
;;------------------------------------------------------------;;