lisp/sun-curs.el

   1 ;;; sun-curs.el --- cursor definitions for Sun windows
   2
   3 ;; Copyright (C) 1987 Free Software Foundation, Inc.
   4
   5 ;; Author: Jeff Peck <peck@sun.com>
   6 ;; Keywords: hardware
   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 (require 'cl)
  33
  34 (defvar sc::cursors nil "List of known cursors")
  35
  36 (defmacro defcursor (name x y string)
  37   (if (not (memq name sc::cursors))
  38       (setq sc::cursors (cons name sc::cursors)))
  39   (list 'defconst name (list 'vector x y string)))
  40
  41 ;;; push should be defined in common lisp, but if not use this:
  42 ;(defmacro push (v l)
  43 ;  "The ITEM is evaluated and consed onto LIST, a list-valued atom"
  44 ;  (list 'setq l (list 'cons v l)))
  45
  46 ;;;
  47 ;;; The standard default cursor
  48 ;;;
  49 (defcursor sc:right-arrow 15 0
  50   (concat '(0 1 0 3 0 7 0 15 0 31 0 63 0 127 0 15
  51               0 27 0 25 0 48 0 48 0 96 0 96 0 192 0 192)))
  52
  53 ;;(sc:set-cursor sc:right-arrow)
  54
  55 (defcursor sc:fat-left-arrow 0 8
  56   (concat '(1 0 3 0 7 0 15 0 31 0 63 255 127 255 255 255
  57               255 255 127 255 63 255 31 0 15 0 7 0 3 0 1 0)))
  58
  59 (defcursor sc:box 8 8
  60   (concat '(15 252 8 4 8 4 8 4 8 4 8 4 8 4 8 4
  61                8 132 8 4 8 4 8 4 8 4 8 4 8 4 15 252)))
  62
  63 (defcursor sc:hourglass 8 8
  64   (concat "\177\376\100\002\040\014\032\070"
  65           "\017\360\007\340\003\300\001\200"
  66           "\001\200\002\100\005\040\010\020"
  67           "\021\210\043\304\107\342\177\376"))
  68
  69 (defun sc:set-cursor (icon)
  70   "Change the Sun mouse cursor to ICON.
  71 If ICON is nil, switch to the system default cursor,
  72 Otherwise, ICON should be a vector or the name of a vector of [x y 32-chars]"
  73   (interactive "XIcon Name: ")
  74   (if (symbolp icon) (setq icon (symbol-value icon)))
  75   (sun-change-cursor-icon icon))
  76
  77 (make-local-variable '*edit-icon*)
  78 (make-variable-buffer-local 'icon-edit)
  79 (setq-default icon-edit nil)
  80 (or (assq 'icon-edit minor-mode-alist)
  81     (push '(icon-edit " IconEdit") minor-mode-alist))
  82
  83 (defun sc:edit-cursor (icon)
  84   "convert icon to rectangle, edit, and repack"
  85   (interactive "XIcon Name: ")
  86   (if (not icon) (setq icon (sc::menu-choose-cursor (selected-window) 1 1)))
  87   (if (symbolp icon) (setq icon (symbol-value icon)))
  88   (if (get-buffer "icon-edit") (kill-buffer "icon-edit"))
  89   (switch-to-buffer "icon-edit")
  90   (local-set-mouse '(text right) 'sc::menu-function)
  91   (local-set-mouse '(text left) '(sc::pic-ins-at-mouse 32))
  92   (local-set-mouse '(text middle) '(sc::pic-ins-at-mouse 64))
  93   (local-set-mouse '(text left middle) 'sc::hotspot)
  94   (sc::display-icon icon)
  95   (picture-mode)
  96   (setq icon-edit t)    ; for mode line display
  97 )
  98 \f
  99 (defun sc::pic-ins-at-mouse (char)
 100   "Picture insert char at mouse location"
 101   (mouse-move-point *mouse-window* (min 15 *mouse-x*) (min 15 *mouse-y*))
 102   (move-to-column (1+ (min 15 (current-column))) t)
 103   (delete-char -1)
 104   (insert char)
 105   (sc::goto-hotspot))
 106
 107 (defun sc::menu-function (window x y)
 108   (sun-menu-evaluate window (1+ x) y sc::menu))
 109
 110 (defmenu sc::menu
 111   ("Cursor Menu")
 112   ("Pack & Use" sc::pack-buffer-to-cursor)
 113   ("Pack to Icon" sc::pack-buffer-to-icon
 114                   (sc::menu-choose-cursor *menu-window* *menu-x* *menu-y*))
 115   ("New Icon" call-interactively 'sc::make-cursor)
 116   ("Edit Icon" sc:edit-cursor
 117                (sc::menu-choose-cursor *menu-window* *menu-x* *menu-y*))
 118   ("Set Cursor" sc:set-cursor
 119                 (sc::menu-choose-cursor *menu-window* *menu-x* *menu-y*))
 120   ("Reset Cursor" sc:set-cursor nil)
 121   ("Help". sc::edit-icon-help-menu)
 122   ("Quit" sc::quit-edit)
 123   )
 124
 125 (defun sc::quit-edit ()
 126   (interactive)
 127   (bury-buffer (current-buffer))
 128   (switch-to-buffer (other-buffer) 'no-record))
 129
 130 (defun sc::make-cursor (symbol)
 131   (interactive "SIcon Name: ")
 132   (eval (list 'defcursor symbol 0 0 ""))
 133   (sc::pack-buffer-to-icon (symbol-value symbol)))
 134
 135 (defmenu sc::edit-icon-help-menu
 136   ("Simple Icon Editor")
 137   ("Left     => CLEAR")
 138   ("Middle   => SET")
 139   ("L & M    => HOTSPOT")
 140   ("Right    => MENU"))
 141
 142 (defun sc::edit-icon-help ()
 143   (message "Left=> CLEAR  Middle=> SET  Left+Middle=> HOTSPOT  Right=> MENU"))
 144
 145 (defun sc::pack-buffer-to-cursor ()
 146     (sc::pack-buffer-to-icon *edit-icon*)
 147     (sc:set-cursor *edit-icon*))
 148
 149 (defun sc::menu-choose-cursor (window x y)
 150   "Presents a menu of cursor names, and returns one or nil"
 151   (let ((curs sc::cursors)
 152         (items))
 153     (while curs
 154       (push (sc::menu-item-for-cursor (car curs)) items)
 155       (setq curs (cdr curs)))
 156     (push (list "Choose Cursor") items)
 157     (setq menu (menu-create items))
 158     (sun-menu-evaluate window x y menu)))
 159
 160 (defun sc::menu-item-for-cursor (cursor)
 161   "apply function to selected cursor"
 162   (list (symbol-name cursor) 'quote cursor))
 163
 164 (defun sc::hotspot (window x y)
 165   (aset *edit-icon* 0 x)
 166   (aset *edit-icon* 1 y)
 167   (sc::goto-hotspot))
 168
 169 (defun sc::goto-hotspot ()
 170   (goto-line (1+ (aref *edit-icon* 1)))
 171   (move-to-column (aref *edit-icon* 0)))
 172
 173 (defun sc::display-icon (icon)
 174   (setq *edit-icon* (copy-sequence icon))
 175   (let ((string (aref *edit-icon* 2))
 176         (index 0))
 177     (while (< index 32)
 178       (let ((char (aref string index))
 179             (bit 128))
 180         (while (> bit 0)
 181           (insert (sc::char-at-bit char bit))
 182           (setq bit (lsh bit -1))))
 183       (if (eq 1 (% index 2)) (newline))
 184       (setq index (1+ index))))
 185   (sc::goto-hotspot))
 186
 187 (defun sc::char-at-bit (char bit)
 188   (if (> (logand char bit) 0) "@" " "))
 189
 190 (defun sc::pack-buffer-to-icon (icon)
 191   "Pack 16 x 16 field into icon string"
 192   (goto-char (point-min))
 193   (aset icon 0 (aref *edit-icon* 0))
 194   (aset icon 1 (aref *edit-icon* 1))
 195   (aset icon 2 (mapconcat 'sc::pack-one-line "1234567890123456" ""))
 196   (sc::goto-hotspot)
 197   )
 198
 199 (defun sc::pack-one-line (dummy)
 200   (let* (char chr1 chr2)
 201     (setq char 0 chr1 (mapconcat 'sc::pack-one-char "12345678" "") chr1 char)
 202     (setq char 0 chr2 (mapconcat 'sc::pack-one-char "12345678" "") chr2 char)
 203     (forward-line 1)
 204     (concat (char-to-string chr1) (char-to-string chr2))
 205     ))
 206
 207 (defun sc::pack-one-char (dummy)
 208   "pack following char into char, unless eolp"
 209   (if (or (eolp) (char-equal (following-char) 32))
 210       (setq char (lsh char 1))
 211     (setq char (1+ (lsh char 1))))
 212   (if (not (eolp))(forward-char)))
 213
 214 (provide 'sm-cursors)
 215
 216 ;;; sun-curs.el ends here