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;;; -*- Mode: Lisp; Syntax: ANSI-Common-Lisp; Package: CLIM-DEMO; Base: 10; Lowercase: Yes -*-
;;; (c) copyright 2000 by
;;; Iban Hatchondo (hatchond@emi.u-bordeaux.fr)
;;; Julien Boninfante (boninfan@emi.u-bordeaux.fr)
;;; Robert Strandh (strandh@labri.u-bordeaux.fr)
;;; This library is free software; you can redistribute it and/or
;;; modify it under the terms of the GNU Library General Public
;;; License as published by the Free Software Foundation; either
;;; version 2 of the License, or (at your option) any later version.
;;;
;;; This library is distributed in the hope that it will be useful,
;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;;; Library General Public License for more details.
;;;
;;; You should have received a copy of the GNU Library General Public
;;; License along with this library; if not, write to the
;;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;;; Boston, MA 02111-1307 USA.
(in-package :clim-demo)
(defparameter *calculator-text-style*
(make-text-style :sans-serif :roman :large))
(defun calculator ()
#+nil
(progn
(loop for port in climi::*all-ports*
do (destroy-port port))
(setq climi::*all-ports* nil))
(let ((frame (make-application-frame 'calculator)))
(run-frame-top-level frame)
frame))
(defun show (number)
(setf (gadget-value (slot-value *application-frame* 'text-field))
(princ-to-string number)))
(defun queue-number (number)
(lambda (gadget)
(declare (ignore gadget))
(with-slots (state) *application-frame*
(if (numberp (first state))
(setf (first state) (+ (* 10 (first state)) number))
(push number state))
(show (first state)))))
(defun queue-operator (operator)
(lambda (gadget)
(declare (ignore gadget))
(do-operation t)
(with-slots (state) *application-frame*
(if (functionp (first state))
(setf (first state) operator)
(push operator state)))))
(defun do-operation (gadget)
(declare (ignore gadget))
(with-slots (state) *application-frame*
(when (= 3 (length state))
(setf state (list (funcall (second state) (third state) (first state))))
(show (first state)))))
(defun initac (gadget)
(declare (ignore gadget))
(with-slots (state) *application-frame*
(setf state (list 0)))
(show 0))
(defun initce (gadget)
(declare (ignore gadget))
(with-slots (state) *application-frame*
(when (numberp (first state))
(pop state))
(show 0)))
(defmethod calculator-frame-top-level ((frame application-frame)
&key (command-parser 'command-line-command-parser)
(command-unparser 'command-line-command-unparser)
(partial-command-parser
'command-line-read-remaining-arguments-for-partial-command)
(prompt "Command: "))
(declare (ignore command-parser command-unparser partial-command-parser prompt))
(clim-extensions:simple-event-loop))
(defun make-button (label operator &key width height
(max-width +fill+) min-width
(max-height +fill+) min-height)
(make-pane 'push-button
:label label
:activate-callback operator
:text-style *calculator-text-style*
:width width :height height
:max-width max-width :min-width min-width
:max-height max-height :min-height min-height))
(define-application-frame calculator ()
((text-field :initform nil)
(state :initform (list 0)))
(:panes
(plus (make-button "+" (queue-operator #'+)))
(dash (make-button "-" (queue-operator #'-)))
(multiply (make-button "*" (queue-operator #'*)))
(divide (make-button "/" (queue-operator #'round)))
(result (make-button "=" #'do-operation))
(one (make-button "1" (queue-number 1)))
(two (make-button "2" (queue-number 2)))
(three (make-button "3" (queue-number 3)))
(four (make-button "4" (queue-number 4)))
(five (make-button "5" (queue-number 5)))
(six (make-button "6" (queue-number 6)))
(seven (make-button "7" (queue-number 7)))
(eight (make-button "8" (queue-number 8)))
(nine (make-button "9" (queue-number 9)))
(zero (make-button "0" (queue-number 0)))
(screen :text-field :value "0" :text-style *calculator-text-style*)
(ac (make-button "AC" #'initac))
(ce (make-button "CE" #'initce)))
(:layouts
(default
(with-slots (text-field) *application-frame*
(vertically (:width 150 :max-width 500)
(setf text-field screen)
(horizontally (:height 50) ac ce)
(tabling (:grid t)
(list one two plus)
(list three four dash)
(list five six multiply)
(list seven eight divide)
(list nine zero result))))))
(:top-level (calculator-frame-top-level . nil)))
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