/usr/share/common-lisp/source/mcclim/dialog-views.lisp is in cl-mcclim 0.9.6.dfsg.cvs20100315-1.
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;;; (c) copyright 2005 by Tim Moore (moore@bricoworks.com)
;;; 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-internals)
;;; Classes for the gadget dialog views. Eventually.
;;; A gadget that's not in the spec but which would be useful.
(defclass pop-up-menu-view (gadget-dialog-view)
()
(:documentation "A dialog view that presents the elements of a
COMPLETION presentation type as a pop-up menu."))
(defparameter +pop-up-menu-view+ (make-instance 'pop-up-menu-view))
;;; By storing these parameters and options from the COMPLETION
;;; presentation type in this object, we avoid having to dig them
;;; out of the presentation type on each call to select-query. That
;;; would not be possible if we are accepting a subtype of COMPLETION.
(defclass av-pop-up-menu-record (standard-updating-output-record)
((pop-up-sequence :accessor pop-up-sequence :initform nil)
(pop-up-test :accessor pop-up-test :initform nil)
(pop-up-value-key :accessor pop-up-value-key :initform nil)
(pop-up-name-key :accessor pop-up-name-key :initform nil)))
(define-presentation-method accept-present-default
((type completion) stream (view pop-up-menu-view)
default default-supplied-p present-p query-identifier)
(declare (ignore present-p))
(unless default-supplied-p
(setq default (funcall value-key (elt sequence 0))))
(let ((record (updating-output (stream :unique-id query-identifier
:cache-value default
:record-type 'av-pop-up-menu-record)
(with-output-as-presentation
(stream query-identifier 'selectable-query)
(surrounding-output-with-border
(stream :shape :inset :move-cursor t)
(write-string (funcall name-key default) stream))))))
(setf (pop-up-sequence record) sequence)
(setf (pop-up-test record) test)
(setf (pop-up-value-key record) value-key)
(setf (pop-up-name-key record) name-key)
record))
(defmethod select-query (stream query (record av-pop-up-menu-record))
(declare (ignore stream))
(let* ((value-key (pop-up-value-key record))
(name-key (pop-up-name-key record)))
(multiple-value-bind (new-value item event)
(menu-choose (map 'list
#'(lambda (item)
`(,(funcall name-key item)
:value ,(funcall value-key item)))
(pop-up-sequence record)))
(declare (ignore item))
(when event
(setf (value query) new-value)
(setf (changedp query) t)))))
(defmethod deselect-query (stream query (record av-pop-up-menu-record))
(declare (ignore stream query))
nil)
(defmethod finalize-query-record (query (record av-pop-up-menu-record))
(declare (ignore query))
nil)
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