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 ;; Maintainer: none
   7 ;; Keywords: hardware
   8
   9 ;; This file is part of GNU Emacs.
  10
  11 ;; GNU Emacs is free software; you can redistribute it and/or modify
  12 ;; it under the terms of the GNU General Public License as published by
  13 ;; the Free Software Foundation; either version 2, or (at your option)
  14 ;; any later version.
  15
  16 ;; GNU Emacs is distributed in the hope that it will be useful,
  17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 ;; GNU General Public License for more details.
  20
  21 ;; You should have received a copy of the GNU General Public License
  22 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  23 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  24 ;; Boston, MA 02111-1307, USA.
  25
  26 ;;; Code:
  27
  28 ;;;
  29 ;;; Added some more cursors and moved the hot spots
  30 ;;; Cursor defined by 16 pairs of 16-bit numbers
  31 ;;;
  32 ;;; 9-dec-86 Jeff Peck, Sun Microsystems Inc. <peck@sun.com>
  33
  34 (require 'cl)
  35
  36 (defvar sc::cursors nil "List of known cursors")
  37
  38 (defmacro defcursor (name x y string)
  39   (if (not (memq name sc::cursors))
  40       (setq sc::cursors (cons name sc::cursors)))
  41   (list 'defconst name (list 'vector x y string)))
  42
  43 ;;; push should be defined in common lisp, but if not use this:
  44 ;(defmacro push (v l)
  45 ;  "The ITEM is evaluated and consed onto LIST, a list-valued atom"
  46 ;  (list 'setq l (list 'cons v l)))
  47
  48 ;;;
  49 ;;; The standard default cursor
  50 ;;;
  51 (defcursor sc:right-arrow 15 0
  52   (concat '(0 1 0 3 0 7 0 15 0 31 0 63 0 127 0 15
  53               0 27 0 25 0 48 0 48 0 96 0 96 0 192 0 192)))
  54
  55 ;;(sc:set-cursor sc:right-arrow)
  56
  57 (defcursor sc:fat-left-arrow 0 8
  58   (concat '(1 0 3 0 7 0 15 0 31 0 63 255 127 255 255 255
  59               255 255 127 255 63 255 31 0 15 0 7 0 3 0 1 0)))
  60
  61 (defcursor sc:box 8 8
  62   (concat '(15 252 8 4 8 4 8 4 8 4 8 4 8 4 8 4
  63                8 132 8 4 8 4 8 4 8 4 8 4 8 4 15 252)))
  64
  65 (defcursor sc:hourglass 8 8
  66   (concat "\177\376\100\002\040\014\032\070"
  67           "\017\360\007\340\003\300\001\200"
  68           "\001\200\002\100\005\040\010\020"
  69           "\021\210\043\304\107\342\177\376"))
  70
  71 (defun sc:set-cursor (icon)
  72   "Change the Sun mouse cursor to ICON.
  73 If ICON is nil, switch to the system default cursor,
  74 Otherwise, ICON should be a vector or the name of a vector of [x y 32-chars]"
  75   (interactive "XIcon Name: ")
  76   (if (symbolp icon) (setq icon (symbol-value icon)))
  77   (sun-change-cursor-icon icon))
  78
  79 (make-local-variable '*edit-icon*)
  80 (make-variable-buffer-local 'icon-edit)
  81 (setq-default icon-edit nil)
  82 (or (assq 'icon-edit minor-mode-alist)
  83     (push '(icon-edit " IconEdit") minor-mode-alist))
  84
  85 (defun sc:edit-cursor (icon)
  86   "convert icon to rectangle, edit, and repack"
  87   (interactive "XIcon Name: ")
  88   (if (not icon) (setq icon (sc::menu-choose-cursor (selected-window) 1 1)))
  89   (if (symbolp icon) (setq icon (symbol-value icon)))
  90   (if (get-buffer "icon-edit") (kill-buffer "icon-edit"))
  91   (switch-to-buffer "icon-edit")
  92   (local-set-mouse '(text right) 'sc::menu-function)
  93   (local-set-mouse '(text left) '(sc::pic-ins-at-mouse 32))
  94   (local-set-mouse '(text middle) '(sc::pic-ins-at-mouse 64))
  95   (local-set-mouse '(text left middle) 'sc::hotspot)
  96   (sc::display-icon icon)
  97   (picture-mode)
  98   (setq icon-edit t)    ; for mode line display
  99 )
 100 \f
 101 (defun sc::pic-ins-at-mouse (char)
 102   "Picture insert char at mouse location"
 103   (mouse-move-point *mouse-window* (min 15 *mouse-x*) (min 15 *mouse-y*))
 104   (move-to-column (1+ (min 15 (current-column))) t)
 105   (delete-char -1)
 106   (insert char)
 107   (sc::goto-hotspot))
 108
 109 (defun sc::menu-function (window x y)
 110   (sun-menu-evaluate window (1+ x) y sc::menu))
 111
 112 (defmenu sc::menu
 113   ("Cursor Menu")
 114   ("Pack & Use" sc::pack-buffer-to-cursor)
 115   ("Pack to Icon" sc::pack-buffer-to-icon
 116                   (sc::menu-choose-cursor *menu-window* *menu-x* *menu-y*))
 117   ("New Icon" call-interactively 'sc::make-cursor)
 118   ("Edit Icon" sc:edit-cursor
 119                (sc::menu-choose-cursor *menu-window* *menu-x* *menu-y*))
 120   ("Set Cursor" sc:set-cursor
 121                 (sc::menu-choose-cursor *menu-window* *menu-x* *menu-y*))
 122   ("Reset Cursor" sc:set-cursor nil)
 123   ("Help" sc::edit-icon-help-menu)
 124   ("Quit" sc::quit-edit)
 125   )
 126
 127 (defun sc::quit-edit ()
 128   (interactive)
 129   (bury-buffer (current-buffer))
 130   (switch-to-buffer (other-buffer) 'no-record))
 131
 132 (defun sc::make-cursor (symbol)
 133   (interactive "SIcon Name: ")
 134   (eval (list 'defcursor symbol 0 0 ""))
 135   (sc::pack-buffer-to-icon (symbol-value symbol)))
 136
 137 (defmenu sc::edit-icon-help-menu
 138   ("Simple Icon Editor")
 139   ("Left     => CLEAR")
 140   ("Middle   => SET")
 141   ("L & M    => HOTSPOT")
 142   ("Right    => MENU"))
 143
 144 (defun sc::edit-icon-help ()
 145   (message "Left=> CLEAR  Middle=> SET  Left+Middle=> HOTSPOT  Right=> MENU"))
 146
 147 (defun sc::pack-buffer-to-cursor ()
 148     (sc::pack-buffer-to-icon *edit-icon*)
 149     (sc:set-cursor *edit-icon*))
 150
 151 (defun sc::menu-choose-cursor (window x y)
 152   "Presents a menu of cursor names, and returns one or nil"
 153   (let ((curs sc::cursors)
 154         (items))
 155     (while curs
 156       (push (sc::menu-item-for-cursor (car curs)) items)
 157       (setq curs (cdr curs)))
 158     (push (list "Choose Cursor") items)
 159     (setq menu (menu-create items))
 160     (sun-menu-evaluate window x y menu)))
 161
 162 (defun sc::menu-item-for-cursor (cursor)
 163   "apply function to selected cursor"
 164   (list (symbol-name cursor) 'quote cursor))
 165
 166 (defun sc::hotspot (window x y)
 167   (aset *edit-icon* 0 x)
 168   (aset *edit-icon* 1 y)
 169   (sc::goto-hotspot))
 170
 171 (defun sc::goto-hotspot ()
 172   (goto-line (1+ (aref *edit-icon* 1)))
 173   (move-to-column (aref *edit-icon* 0)))
 174
 175 (defun sc::display-icon (icon)
 176   (setq *edit-icon* (copy-sequence icon))
 177   (let ((string (aref *edit-icon* 2))
 178         (index 0))
 179     (while (< index 32)
 180       (let ((char (aref string index))
 181             (bit 128))
 182         (while (> bit 0)
 183           (insert (sc::char-at-bit char bit))
 184           (setq bit (lsh bit -1))))
 185       (if (eq 1 (% index 2)) (newline))
 186       (setq index (1+ index))))
 187   (sc::goto-hotspot))
 188
 189 (defun sc::char-at-bit (char bit)
 190   (if (> (logand char bit) 0) "@" " "))
 191
 192 (defun sc::pack-buffer-to-icon (icon)
 193   "Pack 16 x 16 field into icon string"
 194   (goto-char (point-min))
 195   (aset icon 0 (aref *edit-icon* 0))
 196   (aset icon 1 (aref *edit-icon* 1))
 197   (aset icon 2 (mapconcat 'sc::pack-one-line "1234567890123456" ""))
 198   (sc::goto-hotspot)
 199   )
 200
 201 (defun sc::pack-one-line (dummy)
 202   (let* (char chr1 chr2)
 203     (setq char 0 chr1 (mapconcat 'sc::pack-one-char "12345678" "") chr1 char)
 204     (setq char 0 chr2 (mapconcat 'sc::pack-one-char "12345678" "") chr2 char)
 205     (forward-line 1)
 206     (concat (char-to-string chr1) (char-to-string chr2))
 207     ))
 208
 209 (defun sc::pack-one-char (dummy)
 210   "pack following char into char, unless eolp"
 211   (if (or (eolp) (char-equal (following-char) 32))
 212       (setq char (lsh char 1))
 213     (setq char (1+ (lsh char 1))))
 214   (if (not (eolp))(forward-char)))
 215
 216 (provide 'sm-cursors)
 217
 218 ;;; sun-curs.el ends here