lisp/sun-curs.el

   1 ;;; sun-cursors.el --- cursor definitions for Sun windows
   2
   3 ;; Author: Jeff Peck <peck@sun.com>
   4 ;; Last-Modified: 16 Mar 1992
   5
   6 ;; Copyright (C) 1987 Free Software Foundation, Inc.
   7
   8 ;; This file is part of GNU Emacs.
   9
  10 ;; GNU Emacs is free software; you can redistribute it and/or modify
  11 ;; it under the terms of the GNU General Public License as published by
  12 ;; the Free Software Foundation; either version 2, or (at your option)
  13 ;; any later version.
  14
  15 ;; GNU Emacs is distributed in the hope that it will be useful,
  16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;; GNU General Public License for more details.
  19
  20 ;; You should have received a copy of the GNU General Public License
  21 ;; along with GNU Emacs; see the file COPYING.  If not, write to
  22 ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  23
  24 ;;; Code:
  25
  26 ;;;
  27 ;;; Added some more cursors and moved the hot spots
  28 ;;; Cursor defined by 16 pairs of 16-bit numbers
  29 ;;;
  30 ;;; 9-dec-86 Jeff Peck, Sun Microsystems Inc. <peck@sun.com>
  31
  32 (defvar sc::cursors nil "List of known cursors")
  33
  34 (defmacro defcursor (name x y string)
  35   (if (not (memq name sc::cursors))
  36       (setq sc::cursors (cons name sc::cursors)))
  37   (list 'defconst name (list 'vector x y string)))
  38
  39 ;;; push should be defined in common lisp, but if not use this:
  40 ;(defmacro push (v l)
  41 ;  "The ITEM is evaluated and consed onto LIST, a list-valued atom"
  42 ;  (list 'setq l (list 'cons v l)))
  43
  44 ;;;
  45 ;;; The standard default cursor
  46 ;;;
  47 (defcursor sc:right-arrow 15 0
  48   (concat '(0 1 0 3 0 7 0 15 0 31 0 63 0 127 0 15
  49               0 27 0 25 0 48 0 48 0 96 0 96 0 192 0 192)))
  50
  51 ;;(sc:set-cursor sc:right-arrow)
  52
  53 (defcursor sc:fat-left-arrow 0 8
  54   (concat '(1 0 3 0 7 0 15 0 31 0 63 255 127 255 255 255
  55               255 255 127 255 63 255 31 0 15 0 7 0 3 0 1 0)))
  56
  57 (defcursor sc:box 8 8
  58   (concat '(15 252 8 4 8 4 8 4 8 4 8 4 8 4 8 4
  59                8 132 8 4 8 4 8 4 8 4 8 4 8 4 15 252)))
  60
  61 (defcursor sc:hourglass 8 8
  62   (concat "\177\376\100\002\040\014\032\070"
  63           "\017\360\007\340\003\300\001\200"
  64           "\001\200\002\100\005\040\010\020"
  65           "\021\210\043\304\107\342\177\376"))
  66
  67 (defun sc:set-cursor (icon)
  68   "Change the Sun mouse cursor to ICON.
  69 If ICON is nil, switch to the system default cursor,
  70 Otherwise, ICON should be a vector or the name of a vector of [x y 32-chars]"
  71   (interactive "XIcon Name: ")
  72   (if (symbolp icon) (setq icon (symbol-value icon)))
  73   (sun-change-cursor-icon icon))
  74
  75 (make-local-variable '*edit-icon*)
  76 (make-variable-buffer-local 'icon-edit)
  77 (setq-default icon-edit nil)
  78 (or (assq 'icon-edit minor-mode-alist)
  79     (push '(icon-edit " IconEdit") minor-mode-alist))
  80
  81 (defun sc:edit-cursor (icon)
  82   "convert icon to rectangle, edit, and repack"
  83   (interactive "XIcon Name: ")
  84   (if (not icon) (setq icon (sc::menu-choose-cursor (selected-window) 1 1)))
  85   (if (symbolp icon) (setq icon (symbol-value icon)))
  86   (if (get-buffer "icon-edit") (kill-buffer "icon-edit"))
  87   (switch-to-buffer "icon-edit")
  88   (local-set-mouse '(text right) 'sc::menu-function)
  89   (local-set-mouse '(text left) '(sc::pic-ins-at-mouse 32))
  90   (local-set-mouse '(text middle) '(sc::pic-ins-at-mouse 64))
  91   (local-set-mouse '(text left middle) 'sc::hotspot)
  92   (sc::display-icon icon)
  93   (picture-mode)
  94   (setq icon-edit t)    ; for mode line display
  95 )
  96 \f
  97 (defun sc::pic-ins-at-mouse (char)
  98   "Picture insert char at mouse location"
  99   (mouse-move-point *mouse-window* (min 15 *mouse-x*) (min 15 *mouse-y*))
 100   (move-to-column-force (1+ (min 15 (current-column))))
 101   (delete-char -1)
 102   (insert char)
 103   (sc::goto-hotspot))
 104
 105 (defun sc::menu-function (window x y)
 106   (sun-menu-evaluate window (1+ x) y sc::menu))
 107
 108 (defmenu sc::menu
 109   ("Cursor Menu")
 110   ("Pack & Use" sc::pack-buffer-to-cursor)
 111   ("Pack to Icon" sc::pack-buffer-to-icon
 112                   (sc::menu-choose-cursor *menu-window* *menu-x* *menu-y*))
 113   ("New Icon" call-interactively 'sc::make-cursor)
 114   ("Edit Icon" sc:edit-cursor
 115                (sc::menu-choose-cursor *menu-window* *menu-x* *menu-y*))
 116   ("Set Cursor" sc:set-cursor
 117                 (sc::menu-choose-cursor *menu-window* *menu-x* *menu-y*))
 118   ("Reset Cursor" sc:set-cursor nil)
 119   ("Help". sc::edit-icon-help-menu)
 120   ("Quit" sc::quit-edit)
 121   )
 122
 123 (defun sc::quit-edit ()
 124   (interactive)
 125   (bury-buffer (current-buffer))
 126   (switch-to-buffer (other-buffer) 'no-record))
 127
 128 (defun sc::make-cursor (symbol)
 129   (interactive "SIcon Name: ")
 130   (eval (list 'defcursor symbol 0 0 ""))
 131   (sc::pack-buffer-to-icon (symbol-value symbol)))
 132
 133 (defmenu sc::edit-icon-help-menu
 134   ("Simple Icon Editor")
 135   ("Left     => CLEAR")
 136   ("Middle   => SET")
 137   ("L & M    => HOTSPOT")
 138   ("Right    => MENU"))
 139
 140 (defun sc::edit-icon-help ()
 141   (message "Left=> CLEAR  Middle=> SET  Left+Middle=> HOTSPOT  Right=> MENU"))
 142
 143 (defun sc::pack-buffer-to-cursor ()
 144     (sc::pack-buffer-to-icon *edit-icon*)
 145     (sc:set-cursor *edit-icon*))
 146
 147 (defun sc::menu-choose-cursor (window x y)
 148   "Presents a menu of cursor names, and returns one or nil"
 149   (let ((curs sc::cursors)
 150         (items))
 151     (while curs
 152       (push (sc::menu-item-for-cursor (car curs)) items)
 153       (setq curs (cdr curs)))
 154     (push (list "Choose Cursor") items)
 155     (setq menu (menu-create items))
 156     (sun-menu-evaluate window x y menu)))
 157
 158 (defun sc::menu-item-for-cursor (cursor)
 159   "apply function to selected cursor"
 160   (list (symbol-name cursor) 'quote cursor))
 161
 162 (defun sc::hotspot (window x y)
 163   (aset *edit-icon* 0 x)
 164   (aset *edit-icon* 1 y)
 165   (sc::goto-hotspot))
 166
 167 (defun sc::goto-hotspot ()
 168   (goto-line (1+ (aref *edit-icon* 1)))
 169   (move-to-column (aref *edit-icon* 0)))
 170
 171 (defun sc::display-icon (icon)
 172   (setq *edit-icon* (copy-sequence icon))
 173   (let ((string (aref *edit-icon* 2))
 174         (index 0))
 175     (while (< index 32)
 176       (let ((char (aref string index))
 177             (bit 128))
 178         (while (> bit 0)
 179           (insert (sc::char-at-bit char bit))
 180           (setq bit (lsh bit -1))))
 181       (if (eq 1 (% index 2)) (newline))
 182       (setq index (1+ index))))
 183   (sc::goto-hotspot))
 184
 185 (defun sc::char-at-bit (char bit)
 186   (if (> (logand char bit) 0) "@" " "))
 187
 188 (defun sc::pack-buffer-to-icon (icon)
 189   "Pack 16 x 16 field into icon string"
 190   (goto-char (point-min))
 191   (aset icon 0 (aref *edit-icon* 0))
 192   (aset icon 1 (aref *edit-icon* 1))
 193   (aset icon 2 (mapconcat 'sc::pack-one-line "1234567890123456" ""))
 194   (sc::goto-hotspot)
 195   )
 196
 197 (defun sc::pack-one-line (dummy)
 198   (let* (char chr1 chr2)
 199     (setq char 0 chr1 (mapconcat 'sc::pack-one-char "12345678" "") chr1 char)
 200     (setq char 0 chr2 (mapconcat 'sc::pack-one-char "12345678" "") chr2 char)
 201     (forward-line 1)
 202     (concat (char-to-string chr1) (char-to-string chr2))
 203     ))
 204
 205 (defun sc::pack-one-char (dummy)
 206   "pack following char into char, unless eolp"
 207   (if (or (eolp) (char-equal (following-char) 32))
 208       (setq char (lsh char 1))
 209     (setq char (1+ (lsh char 1))))
 210   (if (not (eolp))(forward-char)))
 211
 212 (provide 'sm-cursors)
 213
 214 ;;; sun-cursors.el ends here