/usr/share/common-lisp/source/mcclim/menu.lisp is in cl-mcclim 0.9.6.dfsg.cvs20100315-1.
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;;; (c) copyright 2000 by
;;; 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-internals)
(defmethod stream-force-output ((pane menu-button-pane))
(with-sheet-medium (medium pane)
(medium-force-output medium)))
(defmethod menu-root ((button menu-button-pane))
(menu-root (gadget-client button)))
(defmethod arm-menu ((button menu-button-pane))
(with-slots (client armed id) button
(unless armed
(arm-menu client)
(mapc #'disarm-menu (menu-children client))
(arm-gadget button t))
(dispatch-repaint button (sheet-region button))))
(defmethod disarm-menu ((button menu-button-pane))
(with-slots (client armed id) button
(when armed
(disarm-gadget button)
(dispatch-repaint button (sheet-region button))
(stream-force-output button))))
(defun menu-draw-highlighted (gadget)
(when (sheet-mirror gadget) ;XXX only do this when the gadget is realized.
(with-special-choices (gadget)
(with-slots (label) gadget
(with-bounding-rectangle* (x1 y1 x2 y2) (sheet-region gadget)
(let ((w (- x2 x1))
(h (- y2 y1)))
(draw-rectangle* gadget -1 -1 x2 y2
:ink (gadget-highlighted-color gadget)
:filled t)
(draw-edges-lines* gadget +white+ 0 0 +black+ (1- w) (1- h))
(draw-label* gadget x1 y1 x2 y2)))))))
(defun menu-draw-unhighlighted (gadget)
(when (sheet-mirror gadget) ;XXX only do this when the gadget is realized.
(with-special-choices (gadget)
(with-slots (label) gadget
(with-bounding-rectangle* (x1 y1 x2 y2) (sheet-region gadget)
(let ((w (- x2 x1))
(h (- y2 y1)))
(draw-rectangle* gadget -1 -1 w h ;-1 -1 x2 y2
:ink +background-ink+
:filled t)
(draw-label* gadget x1 y1 x2 y2)))))))
(defmethod handle-event ((pane menu-button-pane) (event pointer-enter-event))
(when (slot-value (slot-value pane 'client) 'armed)
(arm-branch pane)))
(defmethod handle-event ((pane menu-button-pane) (event pointer-button-press-event))
(arm-branch pane))
(defmethod handle-event ((pane menu-button-pane) (event pointer-ungrab-event))
(destroy-substructure (menu-root pane)))
;;; menu-button-leaf-pane
(defclass menu-button-leaf-pane (menu-button-pane)
((command :initform nil :initarg :command)))
(defmethod arm-branch ((button menu-button-leaf-pane))
(with-slots (client) button
(arm-menu client)
(mapc #'destroy-substructure (menu-children client))
(arm-menu button)))
(defmethod destroy-substructure ((button menu-button-leaf-pane))
(disarm-gadget button))
(defmethod handle-event ((pane menu-button-leaf-pane) (event pointer-button-release-event))
(with-slots (armed label client id) pane
(when armed
(unwind-protect
(value-changed-callback pane client id label)
(disarm-menu pane)
(destroy-substructure (menu-root pane))))))
(defmethod handle-event ((pane menu-button-leaf-pane) (event pointer-exit-event))
(disarm-menu pane))
(defmethod handle-event ((pane menu-button-leaf-pane) (event pointer-ungrab-event))
(destroy-substructure (menu-root pane)))
;;; menu-button-submenu-pane
(defclass menu-button-submenu-pane (menu-button-pane)
((frame-manager :initform nil :initarg :frame-manager)
(submenu-frame :initform nil)
(bottomp :initform nil :initarg :bottomp)
(command-table :initform nil :initarg :command-table)))
(defmethod menu-children ((submenu menu-button-submenu-pane))
(with-slots (submenu-frame) submenu
(if submenu-frame
(sheet-children (first (sheet-children (frame-panes submenu-frame))))
'())))
(defclass submenu-border (border-pane) ())
(defclass submenu-border-pane (raised-pane)
()
(:default-initargs :border-width 2 :background *3d-normal-color*))
(defun make-menu-buttons (command-table-name client)
"Map over the available menu items in the command table with
name `command-table-name', taking inherited menu items into
account, and create a list of menu buttons."
(let ((menu-buttons '()))
(map-over-command-table-menu-items
#'(lambda (name gesture item)
(declare (ignore name gesture))
(push (make-menu-button-from-menu-item
item client :command-table command-table-name :vertical t)
menu-buttons))
command-table-name)
(nreverse menu-buttons)))
(defun create-substructure (sub-menu client)
(let* ((frame *application-frame*)
(manager (frame-manager frame))
(command-table-name (slot-value sub-menu 'command-table))
(items (make-menu-buttons command-table-name client))
(rack (make-pane-1 manager frame 'vrack-pane
:background *3d-normal-color* :contents items))
(raised (make-pane-1 manager frame 'submenu-border :contents (list rack))))
(with-slots (bottomp) sub-menu
(multiple-value-bind (xmin ymin xmax ymax)
(bounding-rectangle* (sheet-region sub-menu))
(multiple-value-bind (x y)
(transform-position (sheet-delta-transformation sub-menu nil)
(if bottomp xmin xmax)
(if bottomp ymax ymin))
(with-slots (frame-manager submenu-frame) sub-menu
(setf frame-manager manager
submenu-frame (make-menu-frame raised :left x :top y))
(adopt-frame manager submenu-frame)
(with-sheet-medium (medium raised)
(medium-force-output medium))))))))
(defmethod destroy-substructure ((sub-menu menu-button-submenu-pane))
(with-slots (frame-manager submenu-frame) sub-menu
(when submenu-frame
(mapc #'destroy-substructure (menu-children sub-menu))
(disown-frame frame-manager submenu-frame)
(disarm-gadget sub-menu)
(dispatch-repaint sub-menu +everywhere+)
(setf submenu-frame nil) )))
(defmethod arm-branch ((sub-menu menu-button-submenu-pane))
(with-slots (client frame-manager submenu-frame) sub-menu
(arm-menu client)
(if submenu-frame
(progn (mapc #'destroy-substructure (menu-children sub-menu))
(mapc #'disarm-menu (menu-children sub-menu)))
(progn
(mapc #'destroy-substructure (menu-children client))
(create-substructure sub-menu sub-menu)))
(arm-menu sub-menu)))
(defmethod handle-event ((pane menu-button-submenu-pane) (event pointer-button-release-event))
(destroy-substructure (menu-root pane)))
;;; menu-button-vertical-submenu-pane
(defclass menu-button-vertical-submenu-pane (menu-button-submenu-pane) ())
(let* ((left-padding 10)
(widget-size 5)
(right-padding 4)
(widget-width widget-size)
(widget-height (* 2 widget-size))
(total-width (+ left-padding widget-width right-padding))
(total-height widget-height))
(defmethod compose-space ((gadget menu-button-vertical-submenu-pane) &key width height)
(declare (ignorable width height))
(multiple-value-bind (width min-width max-width height min-height max-height)
(space-requirement-components (call-next-method))
(declare (ignorable max-width))
(make-space-requirement :min-width (+ min-width total-width)
:width (+ width total-width)
:max-width +fill+
:min-height (max min-height total-height)
:height (max height total-height)
:max-height (if (zerop max-height) ; make-space-requirements default maximums are zero..
0
(max max-height total-height)))))
(defmethod handle-repaint ((pane menu-button-vertical-submenu-pane) region)
(call-next-method)
(multiple-value-bind (x1 y1 x2 y2)
(bounding-rectangle* (sheet-region pane))
(when (and (> (- x2 x1) total-width)
(> (- y2 y1) total-height))
(let* ((center (/ (+ y1 y2) 2))
(vbase (- center (/ widget-height 2)))
(hbase (+ (- x2 total-width) left-padding))
(shape (list hbase vbase
(+ hbase widget-size) (+ vbase widget-size)
hbase (+ vbase (* 2 widget-size)))))
(draw-polygon* pane shape :ink +black+))))))
;;; menu-divider-leaf-pane
(defclass menu-divider-leaf-pane (standard-gadget)
((label :initform nil :initarg :label)))
(defparameter *labelled-divider-text-style* (make-text-style :sans-serif :roman :small))
(defmethod destroy-substructure ((object menu-divider-leaf-pane)))
(defmethod arm-menu ((object menu-divider-leaf-pane)))
(defmethod disarm-menu ((object menu-divider-leaf-pane)))
(defmethod compose-space ((gadget menu-divider-leaf-pane) &key width height)
(declare (ignorable width height))
(flet ((make-sr (w h)
(make-space-requirement :min-width w :width w
:min-height h :height h :max-height h)))
(let ((label (slot-value gadget 'label)))
(if label
(multiple-value-bind (width height fx fy baseline)
(text-size gadget label :text-style *labelled-divider-text-style*)
(declare (ignore fx fy height baseline))
(make-sr width (+ 0
(text-style-ascent *labelled-divider-text-style* gadget)
(text-style-descent *labelled-divider-text-style* gadget))))
(make-sr 0 4)))))
(defmethod handle-repaint ((pane menu-divider-leaf-pane) region)
(let ((label (slot-value pane 'label)))
(multiple-value-bind (x1 y1 x2 y2)
(bounding-rectangle* (sheet-region pane))
(declare (ignore y2))
(if label
(multiple-value-bind (width height fx fy baseline)
(text-size pane label :text-style *labelled-divider-text-style*)
(declare (ignore height fx fy))
(let ((tx0 (+ x1 (/ (- (- x2 x1) width) 2)))
(ty0 (+ 1 y1 baseline)))
(draw-line* pane tx0 (1+ ty0) (+ tx0 width) (1+ ty0) :ink *3d-dark-color*)
(draw-text* pane label tx0 ty0
:text-style *labelled-divider-text-style*)))
(progn
(draw-line* pane x1 (1+ y1) x2 (1+ y1) :ink *3d-dark-color*)
(draw-line* pane x1 (+ 2 y1) x2 (+ 2 y1) :ink *3d-light-color*))))))
;;; Menu creation from command tables
(defparameter *enabled-text-style* (make-text-style :sans-serif :roman :normal))
(defparameter *disabled-text-style* (make-text-style :sans-serif :roman :normal))
(defun make-menu-button-from-menu-item (item client
&key (bottomp nil)
(vertical nil)
command-table
(presentation-type 'menu-item))
(declare (ignore command-table))
(let ((name (command-menu-item-name item))
(type (command-menu-item-type item))
(value (command-menu-item-value item))
(frame *application-frame*)
(manager (frame-manager *application-frame*)))
(case type
(:command
(let ((command-name (if (consp value) (car value) value)))
(if (command-enabled command-name frame)
(make-pane-1 manager frame 'menu-button-leaf-pane
:label name
:text-style *enabled-text-style*
:client client
:vertical vertical
:value-changed-callback
#'(lambda (gadget val)
(declare (ignore gadget val))
(throw-object-ptype item presentation-type)))
(let ((pane (make-pane-1 manager frame 'menu-button-leaf-pane
:label name
:text-style *disabled-text-style*
:client client
:vertical vertical
:value-changed-callback
#'(lambda (gadget val)
(declare (ignore gadget val))
nil))))
(deactivate-gadget pane)
pane))))
(:function
(make-pane-1 manager frame 'menu-button-leaf-pane
:label name
:text-style *enabled-text-style*
:client client
:vertical vertical
:value-changed-callback
#'(lambda (gadget val)
(declare (ignore gadget val))
;; FIXME: the spec requires us to pass a gesture to the
;; function, but value-changed-callback doesn't provide
;; one, so we pass NIL for now.
;; FIXME: We don't have a numeric argument, either.
(let ((command (funcall value nil nil)))
(throw-object-ptype command 'command)))))
(:divider
(make-pane-1 manager frame 'menu-divider-leaf-pane
:label name
:vertical vertical
:client client))
(:menu
(make-pane-1 manager frame (if vertical
'menu-button-vertical-submenu-pane
'menu-button-submenu-pane)
:label name
:client client
:vertical vertical
:frame-manager manager
:command-table value
:bottomp bottomp))
(otherwise (error "Don't know how to create a menu button for ~W" type)))))
;;
;; MENU-BAR
;;
(defclass menu-button-hrack-pane (hrack-pane) ())
(defclass menu-bar (menu-button-hrack-pane
permanent-medium-sheet-output-mixin)
((items :initform nil)
(armed :initform nil)))
(defmethod initialize-instance :after ((pane menu-bar)
&rest args
&key
&allow-other-keys)
(declare (ignore args))
(setf (slot-value pane 'items) (copy-list (sheet-children pane)))
(loop for child in (menu-children pane)
do (setf (gadget-client child) pane)))
(defmethod menu-children ((menu-bar menu-bar))
(slot-value menu-bar 'items))
(defmethod menu-root ((object menu-bar))
object)
(defmethod destroy-substructure ((object menu-bar))
(loop for child in (menu-children object)
do (progn (destroy-substructure child)
(dispatch-repaint child (sheet-region child))))
(setf (slot-value object 'armed) nil))
(defmethod arm-menu ((object menu-bar))
(setf (slot-value object 'armed) t))
(defmethod disarm-menu ((object menu-bar))
(setf (slot-value object 'armed) nil))
(defun make-menu-bar (command-table
&key width height
(max-width +fill+) max-height
min-width min-height)
(with-slots (menu) (find-command-table command-table)
(make-pane-1 *pane-realizer* *application-frame*
'menu-bar
:background *3d-normal-color*
:width width :height height
:max-width max-width :max-height max-height
:min-width min-width :min-height min-height
:contents
(append
(loop for item in menu
collect
(make-menu-button-from-menu-item
item nil
:bottomp t
:vertical nil
:command-table command-table))
(list +fill+)))))
(defmethod handle-repaint ((pane menu-bar) region)
(declare (ignore region))
(with-slots (border-width) pane
(multiple-value-call #'draw-bordered-rectangle*
pane
(bounding-rectangle* (sheet-region pane))
:style :outset
:border-width 2)))
(defmethod compose-space ((pane menu-bar) &key width height)
(declare (ignore width height))
(space-requirement+
(call-next-method)
(make-space-requirement :height 4 :max-height 4 :min-height 4)))
(defmethod box-layout-mixin/horizontally-allocate-space
((pane menu-bar) real-width real-height)
(with-slots (x-spacing) pane
(let ((widths
(box-layout-mixin/horizontally-allocate-space-aux*
pane real-width real-height))
(x 2))
(loop
for child in (box-layout-mixin-clients pane)
for width in widths
do
(when (box-client-pane child)
(layout-child (box-client-pane child)
:expand
:expand
x
2
width
(- real-height 4)))
(incf x width)
(incf x x-spacing)))))
(defmethod display-command-table-menu ((command-table standard-command-table)
(stream fundamental-output-stream)
&rest args
&key max-width max-height n-rows n-columns
x-spacing y-spacing initial-spacing
row-wise (cell-align-x :left)
(cell-align-y :top) (move-cursor t))
(formatting-item-list (stream :max-width max-width :max-height max-height :n-rows n-rows
:n-columns n-columns :x-spacing x-spacing :y-spacing y-spacing
:initial-spacing initial-spacing :row-wise row-wise
:move-cursor move-cursor)
(map-over-command-table-menu-items
#'(lambda (item-name accelerator item)
(declare (ignore accelerator))
(formatting-cell (stream :align-x cell-align-x :align-y cell-align-y)
(cond ((eq (command-menu-item-type item) :menu)
(with-text-style (stream (make-text-style :serif '(:bold :italic) nil))
(write-string item-name stream)
(terpri stream))
(surrounding-output-with-border (stream)
(apply #'display-command-table-menu
(find-command-table (command-menu-item-value item))
stream args)))
((eq (command-menu-item-type item) :command)
(let ((name (command-menu-item-name item)))
(with-output-as-presentation (stream (command-menu-item-value item) 'command)
(write-string name stream)))))))
command-table)))
(defmethod display-command-menu (frame (stream fundamental-output-stream)
&rest args &key
(command-table (frame-command-table frame))
initial-spacing row-wise max-width
max-height n-rows n-columns
(cell-align-x :left) (cell-align-y :top))
(declare (ignore initial-spacing row-wise max-width max-height
n-rows n-columns cell-align-x cell-align-y))
(with-keywords-removed (args (:command-table))
(apply #'display-command-table-menu command-table stream args)))
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