lisp/sun-curs.el

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