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;;; -*- Mode: Lisp; Syntax: ANSI-Common-Lisp; Package: CLIM-DEMO; Base: 10; Lowercase: Yes -*-
;;; (c) copyright 2001 by
;;; Julien Boninfante (boninfan@emi.u-bordeaux.fr)
;;; (c) copyright 2009 by
;;; Robert Strandh (strandh@labri.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.
;;; How to use the possibilities of the traffic-lights, you have two
;;; possibilites :
;;; 1 - Click on a toggle-button : the color of the light-pane
;;; will change
;;; 2 - Click on the orange or green toggle-button, then move your
;;; mouse-pointer on the light-pane, and wait a few seconds.
(in-package :clim-internals)
;;; example gadget definition
(defclass light-pane (standard-gadget) ())
(defmethod handle-repaint ((pane light-pane) region)
(declare (ignore region))
(multiple-value-bind (x1 y1 x2 y2) (bounding-rectangle* (sheet-region pane))
(display-gadget-background
pane (gadget-current-color pane) 0 0 (- x2 x1) (- y2 y1))))
(in-package :clim-demo)
;;; callback functions
(defmethod handle-event :after ((pane clim-internals::light-pane) (event pointer-event))
(declare (ignorable event))
(let ((label (gadget-label (radio-box-current-selection
(slot-value *application-frame* 'radio-box)))))
(cond ((string= label "O")
(traffic-pause 3)
(simulate-user-action (find-pane-named *application-frame*
'red)))
((string= label "G")
(traffic-pause 5)
(simulate-user-action (find-pane-named *application-frame*
'orange)))
(t nil))))
(defun traffic-pause (time)
(let ((time-left-window (find-pane-named *application-frame* 'time-left)))
(flet ((show-time (left)
(setf (gadget-value time-left-window)
(format nil "~D" left))))
(loop for left from time downto 1
do (show-time left)
(sleep 1))
(show-time 0))))
(defmethod simulate-user-action ((pane toggle-button))
(setf (gadget-value pane :invoke-callback t) (not (gadget-value pane))))
(defun callback-red (gadget value)
(declare (ignorable gadget))
(when value
(setf (clim-internals::gadget-current-color (slot-value *application-frame* 'light))
(clim-internals::gadget-normal-color (slot-value *application-frame* 'light)))))
(defun callback-orange (gadget value)
(declare (ignore gadget))
(when value
(setf (clim-internals::gadget-current-color (slot-value *application-frame* 'light))
(clim-internals::gadget-highlighted-color (slot-value *application-frame* 'light)))))
(defun callback-green (gadget value)
(declare (ignore gadget))
(when value
(setf (clim-internals::gadget-current-color (slot-value *application-frame* 'light))
(clim-internals::gadget-pushed-and-highlighted-color (slot-value *application-frame* 'light)))))
;;; test functions
(defun traffic-lights ()
(loop for port in climi::*all-ports*
do (destroy-port port))
(setq climi::*all-ports* nil)
(run-frame-top-level (make-application-frame 'traffic-lights)))
(defmethod traffic-lights-frame-top-level ((frame application-frame))
(setf (slot-value frame 'light) (find-pane-named frame 'light)
(slot-value frame 'radio-box) (find-pane-named frame 'radio-box))
(clim-extensions:simple-event-loop))
(defmacro make-color-chooser-toggle-button (name color label callback)
(let ((color-name (gensym "COLOR")))
`(let ((,color-name ,color))
(make-pane 'toggle-button
:name ,name
:label ,label
:indicator-type :one-of
:width 30
:height 30
:normal ,color-name
:highlighted ,color-name
:pushed-and-highlighted ,color-name
:value-changed-callback ,callback))))
(define-application-frame traffic-lights ()
((radio-box :initform nil)
(light :initform nil))
(:panes
(light :light
:width 30
:normal +red+
:highlighted +orange+
:pushed-and-highlighted +green+)
(radio-box (with-radio-box ()
(radio-box-current-selection
(make-color-chooser-toggle-button 'red +red+ "R" 'callback-red))
(make-color-chooser-toggle-button 'orange +orange+ "O" 'callback-orange)
(make-color-chooser-toggle-button 'green +green+ "G" 'callback-green)))
(time-left text-field
:editable-p nil
:value "0"))
(:layouts
(default (horizontally () (vertically (:spacing 10) radio-box time-left) light)))
(:top-level (traffic-lights-frame-top-level . nil)))
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