;;;
;;; Copyright (c) 2003,2004 uim Project http://uim.freedesktop.org/
;;;
;;; All rights reserved.
;;;
;;; Redistribution and use in source and binary forms, with or without
;;; modification, are permitted provided that the following conditions
;;; are met:
;;; 1. Redistributions of source code must retain the above copyright
;;;    notice, this list of conditions and the following disclaimer.
;;; 2. Redistributions in binary form must reproduce the above copyright
;;;    notice, this list of conditions and the following disclaimer in the
;;;    documentation and/or other materials provided with the distribution.
;;; 3. Neither the name of authors nor the names of its contributors
;;;    may be used to endorse or promote products derived from this software
;;;    without specific prior written permission.
;;;
;;; THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
;;; ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
;;; IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
;;; ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
;;; FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
;;; DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
;;; OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
;;; HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
;;; LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
;;; OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
;;; SUCH DAMAGE.
;;;;

;; SKKの再起学習をインラインで行うための簡易テキストエディタ
;;
(define skk-editor-new
  (lambda (sc id)
    (let ((ec (copy-list '(() () () ()))))
      (skk-editor-set-context! ec sc)
      (skk-editor-set-id! ec id)
      ec)))

(define skk-editor-context
  (lambda (ec)
    (car (nthcdr 0 ec))))

(define skk-editor-set-context!
  (lambda (ec s)
    (set-car! (nthcdr 0 ec) s)))

(define skk-editor-id
  (lambda (ec)
    (car (nthcdr 1 ec))))

(define skk-editor-set-id!
  (lambda (ec s)
    (set-car! (nthcdr 1 ec) s)))

(define skk-editor-left-string
  (lambda (ec)
    (car (nthcdr 2 ec))))

(define skk-editor-set-left-string!
  (lambda (ec s)
    (set-car! (nthcdr 2 ec) s)))

(define skk-editor-right-string
  (lambda (ec)
    (car (nthcdr 3 ec))))

(define skk-editor-set-right-string!
  (lambda (ec s)
    (set-car! (nthcdr 3 ec) s)))

(define skk-editor-flush
  (lambda (ec)
    (skk-editor-set-left-string! ec '())
    (skk-editor-set-right-string! ec '())))

(define skk-editor-make-string
  (lambda (sl dir)
    (if sl
	(if dir
	    (string-append (skk-editor-make-string (cdr sl) dir)
			   (car sl))
	    (string-append (car sl)
			   (skk-editor-make-string (cdr sl) dir)))
	"")))

(define skk-editor-get-left-string
  (lambda (ec)
    (skk-editor-make-string
     (skk-editor-left-string ec) #t)))

(define skk-editor-get-right-string
  (lambda (ec)
    (skk-editor-make-string
     (skk-editor-right-string ec) #f)))

(define skk-editor-commit-char-list
  (lambda (ec sl)
    (if sl
	(begin
	  (skk-editor-set-left-string!
	   ec
	   (cons (car sl)
		 (skk-editor-left-string ec)))
	  (skk-editor-commit-char-list
	   ec (cdr sl))))))

(define skk-editor-commit
  (lambda (ec str)
    (skk-editor-commit-char-list
     ec (reverse (string-to-list str)))))
				 
(define skk-editor-commit-raw
  (lambda (ec key key-state)
    (let ((raw-str (im-get-raw-key-str key key-state))
	  (sc (skk-editor-context ec))
	  (str
	   (string-append
	    (skk-editor-get-left-string ec)
	    (skk-editor-get-right-string ec))))
      (if raw-str
	  (skk-editor-commit ec raw-str)
	  ;; not a string
	  (and
	   (if (skk-backspace-key? key key-state)
	       (let ((cur (skk-editor-left-string ec)))
		 (if cur
		     (skk-editor-set-left-string!
		      ec (cdr cur)))
		 #f)
	       #t)
	   (if (skk-return-key? key key-state)
	       (begin
		 (if (< 0 (string-length str))
		     (begin
		       (skk-lib-learn-word
			(skk-make-string (skk-context-head sc)
					 skk-type-hiragana)
			(skk-context-okuri-head sc)
			(skk-make-string (skk-context-okuri sc)
					 skk-type-hiragana)
			str)
		       (skk-save-personal-dictionary)))
		 (skk-commit-editor-context
		  sc (skk-editor-id ec) str)
		 #f)
	       #t)
	   (if (skk-cancel-key? key key-state)
	       (begin
		 (skk-back-to-kanji-state sc (skk-editor-id ec))
		 (skk-context-set-child-context! sc #f)
		 #f)
	       #t)
	   )))))
