4.4BSD/usr/src/contrib/emacs-18.57/lisp/sun-cursors.el
;; Cursor definitions for Sun windows
;; Copyright (C) 1987 Free Software Foundation, Inc.
;; This file is part of GNU Emacs.
;; GNU Emacs is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 1, or (at your option)
;; any later version.
;; GNU Emacs 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 General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING. If not, write to
;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
;;;
;;; Added some more cursors and moved the hot spots
;;; Cursor defined by 16 pairs of 16-bit numbers
;;;
;;; 9-dec-86 Jeff Peck, Sun Microsystems Inc. <peck@sun.com>
(provide 'sm-cursors)
(defvar sc::cursors nil "List of known cursors")
(defmacro defcursor (name x y string)
(if (not (memq name sc::cursors))
(setq sc::cursors (cons name sc::cursors)))
(list 'defconst name (list 'vector x y string)))
;;; push should be defined in common lisp, but if not use this:
;(defmacro push (v l)
; "The ITEM is evaluated and consed onto LIST, a list-valued atom"
; (list 'setq l (list 'cons v l)))
;;;
;;; The standard default cursor
;;;
(defcursor sc:right-arrow 15 0
(concat '(0 1 0 3 0 7 0 15 0 31 0 63 0 127 0 15
0 27 0 25 0 48 0 48 0 96 0 96 0 192 0 192)))
;;(sc:set-cursor sc:right-arrow)
(defcursor sc:fat-left-arrow 0 8
(concat '(1 0 3 0 7 0 15 0 31 0 63 255 127 255 255 255
255 255 127 255 63 255 31 0 15 0 7 0 3 0 1 0)))
(defcursor sc:box 8 8
(concat '(15 252 8 4 8 4 8 4 8 4 8 4 8 4 8 4
8 132 8 4 8 4 8 4 8 4 8 4 8 4 15 252)))
(defcursor sc:hourglass 8 8
(concat "\177\376\100\002\040\014\032\070"
"\017\360\007\340\003\300\001\200"
"\001\200\002\100\005\040\010\020"
"\021\210\043\304\107\342\177\376"))
(defun sc:set-cursor (icon)
"Change the Sun mouse cursor to ICON.
If ICON is nil, switch to the system default cursor,
Otherwise, ICON should be a vector or the name of a vector of [x y 32-chars]"
(interactive "XIcon Name: ")
(if (symbolp icon) (setq icon (symbol-value icon)))
(sun-change-cursor-icon icon))
(make-local-variable '*edit-icon*)
(make-variable-buffer-local 'icon-edit)
(setq-default icon-edit nil)
(or (assq 'icon-edit minor-mode-alist)
(push '(icon-edit " IconEdit") minor-mode-alist))
(defun sc:edit-cursor (icon)
"convert icon to rectangle, edit, and repack"
(interactive "XIcon Name: ")
(if (not icon) (setq icon (sc::menu-choose-cursor (selected-window) 1 1)))
(if (symbolp icon) (setq icon (symbol-value icon)))
(if (get-buffer "icon-edit") (kill-buffer "icon-edit"))
(switch-to-buffer "icon-edit")
(local-set-mouse '(text right) 'sc::menu-function)
(local-set-mouse '(text left) '(sc::pic-ins-at-mouse 32))
(local-set-mouse '(text middle) '(sc::pic-ins-at-mouse 64))
(local-set-mouse '(text left middle) 'sc::hotspot)
(sc::display-icon icon)
(picture-mode)
(setq icon-edit t) ; for mode line display
)
(defun sc::pic-ins-at-mouse (char)
"Picture insert char at mouse location"
(mouse-move-point *mouse-window* (min 15 *mouse-x*) (min 15 *mouse-y*))
(move-to-column-force (1+ (min 15 (current-column))))
(delete-char -1)
(insert char)
(sc::goto-hotspot))
(defun sc::menu-function (window x y)
(sun-menu-evaluate window (1+ x) y sc::menu))
(defmenu sc::menu
("Cursor Menu")
("Pack & Use" sc::pack-buffer-to-cursor)
("Pack to Icon" sc::pack-buffer-to-icon
(sc::menu-choose-cursor *menu-window* *menu-x* *menu-y*))
("New Icon" call-interactively 'sc::make-cursor)
("Edit Icon" sc:edit-cursor
(sc::menu-choose-cursor *menu-window* *menu-x* *menu-y*))
("Set Cursor" sc:set-cursor
(sc::menu-choose-cursor *menu-window* *menu-x* *menu-y*))
("Reset Cursor" sc:set-cursor nil)
("Help". sc::edit-icon-help-menu)
("Quit" sc::quit-edit)
)
(defun sc::quit-edit ()
(interactive)
(bury-buffer (current-buffer))
(switch-to-buffer (other-buffer) 'no-record))
(defun sc::make-cursor (symbol)
(interactive "SIcon Name: ")
(eval (list 'defcursor symbol 0 0 ""))
(sc::pack-buffer-to-icon (symbol-value symbol)))
(defmenu sc::edit-icon-help-menu
("Simple Icon Editor")
("Left => CLEAR")
("Middle => SET")
("L & M => HOTSPOT")
("Right => MENU"))
(defun sc::edit-icon-help ()
(message "Left=> CLEAR Middle=> SET Left+Middle=> HOTSPOT Right=> MENU"))
(defun sc::pack-buffer-to-cursor ()
(sc::pack-buffer-to-icon *edit-icon*)
(sc:set-cursor *edit-icon*))
(defun sc::menu-choose-cursor (window x y)
"Presents a menu of cursor names, and returns one or nil"
(let ((curs sc::cursors)
(items))
(while curs
(push (sc::menu-item-for-cursor (car curs)) items)
(setq curs (cdr curs)))
(push (list "Choose Cursor") items)
(setq menu (menu-create items))
(sun-menu-evaluate window x y menu)))
(defun sc::menu-item-for-cursor (cursor)
"apply function to selected cursor"
(list (symbol-name cursor) 'quote cursor))
(defun sc::hotspot (window x y)
(aset *edit-icon* 0 x)
(aset *edit-icon* 1 y)
(sc::goto-hotspot))
(defun sc::goto-hotspot ()
(goto-line (1+ (aref *edit-icon* 1)))
(move-to-column (aref *edit-icon* 0)))
(defun sc::display-icon (icon)
(setq *edit-icon* (copy-sequence icon))
(let ((string (aref *edit-icon* 2))
(index 0))
(while (< index 32)
(let ((char (aref string index))
(bit 128))
(while (> bit 0)
(insert (sc::char-at-bit char bit))
(setq bit (lsh bit -1))))
(if (eq 1 (mod index 2)) (newline))
(setq index (1+ index))))
(sc::goto-hotspot))
(defun sc::char-at-bit (char bit)
(if (> (logand char bit) 0) "@" " "))
(defun sc::pack-buffer-to-icon (icon)
"Pack 16 x 16 field into icon string"
(goto-char (point-min))
(aset icon 0 (aref *edit-icon* 0))
(aset icon 1 (aref *edit-icon* 1))
(aset icon 2 (mapconcat 'sc::pack-one-line "1234567890123456" ""))
(sc::goto-hotspot)
)
(defun sc::pack-one-line (dummy)
(let* (char chr1 chr2)
(setq char 0 chr1 (mapconcat 'sc::pack-one-char "12345678" "") chr1 char)
(setq char 0 chr2 (mapconcat 'sc::pack-one-char "12345678" "") chr2 char)
(forward-line 1)
(concat (char-to-string chr1) (char-to-string chr2))
))
(defun sc::pack-one-char (dummy)
"pack following char into char, unless eolp"
(if (or (eolp) (char-equal (following-char) 32))
(setq char (lsh char 1))
(setq char (1+ (lsh char 1))))
(if (not (eolp))(forward-char)))