lisp/sun-curs.el

   1 ;;; sun-cursors.el --- cursor definitions for Sun windows
   2
   3 ;; Copyright (C) 1987 Free Software Foundation, Inc.
   4
   5 ;; Author: Jeff Peck <peck@sun.com>
   6
   7 ;; This file is part of GNU Emacs.
   8
   9 ;; GNU Emacs is free software; you can redistribute it and/or modify
  10 ;; it under the terms of the GNU General Public License as published by
  11 ;; the Free Software Foundation; either version 2, or (at your option)
  12 ;; any later version.
  13
  14 ;; GNU Emacs is distributed in the hope that it will be useful,
  15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 ;; GNU General Public License for more details.
  18
  19 ;; You should have received a copy of the GNU General Public License
  20 ;; along with GNU Emacs; see the file COPYING.  If not, write to
  21 ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  22
  23 ;;; Code:
  24
  25 ;;;
  26 ;;; Added some more cursors and moved the hot spots
  27 ;;; Cursor defined by 16 pairs of 16-bit numbers
  28 ;;;
  29 ;;; 9-dec-86 Jeff Peck, Sun Microsystems Inc. <peck@sun.com>
  30
  31 (defvar sc::cursors nil "List of known cursors")
  32
  33 (defmacro defcursor (name x y string)
  34   (if (not (memq name sc::cursors))
  35       (setq sc::cursors (cons name sc::cursors)))
  36   (list 'defconst name (list 'vector x y string)))
  37
  38 ;;; push should be defined in common lisp, but if not use this:
  39 ;(defmacro push (v l)
  40 ;  "The ITEM is evaluated and consed onto LIST, a list-valued atom"
  41 ;  (list 'setq l (list 'cons v l)))
  42
  43 ;;;
  44 ;;; The standard default cursor
  45 ;;;
  46 (defcursor sc:right-arrow 15 0
  47   (concat '(0 1 0 3 0 7 0 15 0 31 0 63 0 127 0 15
  48               0 27 0 25 0 48 0 48 0 96 0 96 0 192 0 192)))
  49
  50 ;;(sc:set-cursor sc:right-arrow)
  51
  52 (defcursor sc:fat-left-arrow 0 8
  53   (concat '(1 0 3 0 7 0 15 0 31 0 63 255 127 255 255 255
  54               255 255 127 255 63 255 31 0 15 0 7 0 3 0 1 0)))
  55
  56 (defcursor sc:box 8 8
  57   (concat '(15 252 8 4 8 4 8 4 8 4 8 4 8 4 8 4
  58                8 132 8 4 8 4 8 4 8 4 8 4 8 4 15 252)))
  59
  60 (defcursor sc:hourglass 8 8
  61   (concat "\177\376\100\002\040\014\032\070"
  62           "\017\360\007\340\003\300\001\200"
  63           "\001\200\002\100\005\040\010\020"
  64           "\021\210\043\304\107\342\177\376"))
  65
  66 (defun sc:set-cursor (icon)
  67   "Change the Sun mouse cursor to ICON.
  68 If ICON is nil, switch to the system default cursor,
  69 Otherwise, ICON should be a vector or the name of a vector of [x y 32-chars]"
  70   (interactive "XIcon Name: ")
  71   (if (symbolp icon) (setq icon (symbol-value icon)))
  72   (sun-change-cursor-icon icon))
  73
  74 (make-local-variable '*edit-icon*)
  75 (make-variable-buffer-local 'icon-edit)
  76 (setq-default icon-edit nil)
  77 (or (assq 'icon-edit minor-mode-alist)
  78     (push '(icon-edit " IconEdit") minor-mode-alist))
  79
  80 (defun sc:edit-cursor (icon)
  81   "convert icon to rectangle, edit, and repack"
  82   (interactive "XIcon Name: ")
  83   (if (not icon) (setq icon (sc::menu-choose-cursor (selected-window) 1 1)))
  84   (if (symbolp icon) (setq icon (symbol-value icon)))
  85   (if (get-buffer "icon-edit") (kill-buffer "icon-edit"))
  86   (switch-to-buffer "icon-edit")
  87   (local-set-mouse '(text right) 'sc::menu-function)
  88   (local-set-mouse '(text left) '(sc::pic-ins-at-mouse 32))
  89   (local-set-mouse '(text middle) '(sc::pic-ins-at-mouse 64))
  90   (local-set-mouse '(text left middle) 'sc::hotspot)
  91   (sc::display-icon icon)
  92   (picture-mode)
  93   (setq icon-edit t)    ; for mode line display
  94 )
  95 \f
  96 (defun sc::pic-ins-at-mouse (char)
  97   "Picture insert char at mouse location"
  98   (mouse-move-point *mouse-window* (min 15 *mouse-x*) (min 15 *mouse-y*))
  99   (move-to-column-force (1+ (min 15 (current-column))))
 100   (delete-char -1)
 101   (insert char)
 102   (sc::goto-hotspot))
 103
 104 (defun sc::menu-function (window x y)
 105   (sun-menu-evaluate window (1+ x) y sc::menu))
 106
 107 (defmenu sc::menu
 108   ("Cursor Menu")
 109   ("Pack & Use" sc::pack-buffer-to-cursor)
 110   ("Pack to Icon" sc::pack-buffer-to-icon
 111                   (sc::menu-choose-cursor *menu-window* *menu-x* *menu-y*))
 112   ("New Icon" call-interactively 'sc::make-cursor)
 113   ("Edit Icon" sc:edit-cursor
 114                (sc::menu-choose-cursor *menu-window* *menu-x* *menu-y*))
 115   ("Set Cursor" sc:set-cursor
 116                 (sc::menu-choose-cursor *menu-window* *menu-x* *menu-y*))
 117   ("Reset Cursor" sc:set-cursor nil)
 118   ("Help". sc::edit-icon-help-menu)
 119   ("Quit" sc::quit-edit)
 120   )
 121
 122 (defun sc::quit-edit ()
 123   (interactive)
 124   (bury-buffer (current-buffer))
 125   (switch-to-buffer (other-buffer) 'no-record))
 126
 127 (defun sc::make-cursor (symbol)
 128   (interactive "SIcon Name: ")
 129   (eval (list 'defcursor symbol 0 0 ""))
 130   (sc::pack-buffer-to-icon (symbol-value symbol)))
 131
 132 (defmenu sc::edit-icon-help-menu
 133   ("Simple Icon Editor")
 134   ("Left     => CLEAR")
 135   ("Middle   => SET")
 136   ("L & M    => HOTSPOT")
 137   ("Right    => MENU"))
 138
 139 (defun sc::edit-icon-help ()
 140   (message "Left=> CLEAR  Middle=> SET  Left+Middle=> HOTSPOT  Right=> MENU"))
 141
 142 (defun sc::pack-buffer-to-cursor ()
 143     (sc::pack-buffer-to-icon *edit-icon*)
 144     (sc:set-cursor *edit-icon*))
 145
 146 (defun sc::menu-choose-cursor (window x y)
 147   "Presents a menu of cursor names, and returns one or nil"
 148   (let ((curs sc::cursors)
 149         (items))
 150     (while curs
 151       (push (sc::menu-item-for-cursor (car curs)) items)
 152       (setq curs (cdr curs)))
 153     (push (list "Choose Cursor") items)
 154     (setq menu (menu-create items))
 155     (sun-menu-evaluate window x y menu)))
 156
 157 (defun sc::menu-item-for-cursor (cursor)
 158   "apply function to selected cursor"
 159   (list (symbol-name cursor) 'quote cursor))
 160
 161 (defun sc::hotspot (window x y)
 162   (aset *edit-icon* 0 x)
 163   (aset *edit-icon* 1 y)
 164   (sc::goto-hotspot))
 165
 166 (defun sc::goto-hotspot ()
 167   (goto-line (1+ (aref *edit-icon* 1)))
 168   (move-to-column (aref *edit-icon* 0)))
 169
 170 (defun sc::display-icon (icon)
 171   (setq *edit-icon* (copy-sequence icon))
 172   (let ((string (aref *edit-icon* 2))
 173         (index 0))
 174     (while (< index 32)
 175       (let ((char (aref string index))
 176             (bit 128))
 177         (while (> bit 0)
 178           (insert (sc::char-at-bit char bit))
 179           (setq bit (lsh bit -1))))
 180       (if (eq 1 (% index 2)) (newline))
 181       (setq index (1+ index))))
 182   (sc::goto-hotspot))
 183
 184 (defun sc::char-at-bit (char bit)
 185   (if (> (logand char bit) 0) "@" " "))
 186
 187 (defun sc::pack-buffer-to-icon (icon)
 188   "Pack 16 x 16 field into icon string"
 189   (goto-char (point-min))
 190   (aset icon 0 (aref *edit-icon* 0))
 191   (aset icon 1 (aref *edit-icon* 1))
 192   (aset icon 2 (mapconcat 'sc::pack-one-line "1234567890123456" ""))
 193   (sc::goto-hotspot)
 194   )
 195
 196 (defun sc::pack-one-line (dummy)
 197   (let* (char chr1 chr2)
 198     (setq char 0 chr1 (mapconcat 'sc::pack-one-char "12345678" "") chr1 char)
 199     (setq char 0 chr2 (mapconcat 'sc::pack-one-char "12345678" "") chr2 char)
 200     (forward-line 1)
 201     (concat (char-to-string chr1) (char-to-string chr2))
 202     ))
 203
 204 (defun sc::pack-one-char (dummy)
 205   "pack following char into char, unless eolp"
 206   (if (or (eolp) (char-equal (following-char) 32))
 207       (setq char (lsh char 1))
 208     (setq char (1+ (lsh char 1))))
 209   (if (not (eolp))(forward-char)))
 210
 211 (provide 'sm-cursors)
 212
 213 ;;; sun-cursors.el ends here