;;;; butbar.stk -- Button bar management
;;;;
;;;; Copyright © 1998-1999 Erick Gallesio - I3S-CNRS/ESSI <eg@unice.fr>
;;;; 
;;;; Permission to use, copy, and/or distribute this software and its
;;;; documentation for any purpose and without fee is hereby granted, provided
;;;; that both the above copyright notice and this permission notice appear in
;;;; all copies and derived works.  Fees for distribution or use of this
;;;; software or derived works may only be charged with express written
;;;; permission of the copyright holder.  
;;;; This software is provided ``as is'' without express or implied warranty.
;;;;
;;;; $Id: butbar.stk 1.3 Fri, 22 Jan 1999 14:44:12 +0100 eg $
;;;;
;;;;           Author: Erick Gallesio [eg@unice.fr]
;;;;    Creation date:  8-Dec-1998 18:58
;;;; Last file update: 22-Jan-1999 14:22

(require "balloon")

(select-module Tk)
(export make-bordered-frame make-button-bar)

;;;
;;; Button-bar default bindings
;;;

(bind "ButtonBar" "<Enter>" (lambda (|W|) (tk-set! |W| :relief "raised")))
(bind "ButtonBar" "<Leave>" (lambda (|W|) (tk-set! |W| :relief "flat")))

;=============================================================================
;
; bordered-frame functions
;
;=============================================================================

(define (hide-bordered-frame parent)
  (let* ((info     (pack 'info parent))
	 (grand-pa (winfo 'parent parent))
	 (b        (button (& grand-pa ".hb") :image (make-image "hborder.gif"))))
    (tk-set! b :command (lambda ()
			  (pack 'unpack b)
			  (apply pack parent (cddr info))
			  (destroy b)))
    (pack 'unpack parent)
    (pack b :side "left")))

(define (make-bordered-frame parent)
  (let* ((f (frame (gensym (& parent ".border") :relief "ridge" :bd 1)))
	 (b (button (& f ".b") :image (make-image "border.gif")
		    :bd 1 :relief "ridge" :command (lambda () 
						     (hide-bordered-frame f)))))
    (pack b :side "left" :fill 'y)
    (pack f :fill 'x)
    f))


;=============================================================================
;
; make-button-bar
;
;=============================================================================
(define (make-button-bar parent l)
  
  (define (make-button parent img balloon action)
    (let* ((name (gensym (& parent ".b")))
	   (but  (button name :image (make-image img) :relief "flat" :comm action)))
      (pack but :side "left" :fill "both")
      (add-balloon-help but balloon 1500 "#ffffb0")
      (bindtags but (cons "ButtonBar" (bindtags but)))))

  (define (make-space parent size)
    (let ((name (gensym (& parent ".f"))))
      (pack (frame name :width size) :side "left" :fill "both")))

  ;; make-button-bar starts here
  (let ((f (make-bordered-frame parent)))
    (for-each (lambda (x)
		(if (integer? x)
		    (make-space f x)
		    (apply make-button f x)))
	      l)
    f))

(provide "butbar")