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 the
  22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  23 ;; Boston, MA 02111-1307, USA.
  24
  25 ;;; Code:
  26
  27 ;;;
  28 ;;; Added some more cursors and moved the hot spots
  29 ;;; Cursor defined by 16 pairs of 16-bit numbers
  30 ;;;
  31 ;;; 9-dec-86 Jeff Peck, Sun Microsystems Inc. <peck@sun.com>
  32
  33 (require 'cl)
  34
  35 (defvar sc::cursors nil "List of known cursors")
  36
  37 (defmacro defcursor (name x y string)
  38   (if (not (memq name sc::cursors))
  39       (setq sc::cursors (cons name sc::cursors)))
  40   (list 'defconst name (list 'vector x y string)))
  41
  42 ;;; push should be defined in common lisp, but if not use this:
  43 ;(defmacro push (v l)
  44 ;  "The ITEM is evaluated and consed onto LIST, a list-valued atom"
  45 ;  (list 'setq l (list 'cons v l)))
  46
  47 ;;;
  48 ;;; The standard default cursor
  49 ;;;
  50 (defcursor sc:right-arrow 15 0
  51   (concat '(0 1 0 3 0 7 0 15 0 31 0 63 0 127 0 15
  52               0 27 0 25 0 48 0 48 0 96 0 96 0 192 0 192)))
  53
  54 ;;(sc:set-cursor sc:right-arrow)
  55
  56 (defcursor sc:fat-left-arrow 0 8
  57   (concat '(1 0 3 0 7 0 15 0 31 0 63 255 127 255 255 255
  58               255 255 127 255 63 255 31 0 15 0 7 0 3 0 1 0)))
  59
  60 (defcursor sc:box 8 8
  61   (concat '(15 252 8 4 8 4 8 4 8 4 8 4 8 4 8 4
  62                8 132 8 4 8 4 8 4 8 4 8 4 8 4 15 252)))
  63
  64 (defcursor sc:hourglass 8 8
  65   (concat "\177\376\100\002\040\014\032\070"
  66           "\017\360\007\340\003\300\001\200"
  67           "\001\200\002\100\005\040\010\020"
  68           "\021\210\043\304\107\342\177\376"))
  69
  70 (defun sc:set-cursor (icon)
  71   "Change the Sun mouse cursor to ICON.
  72 If ICON is nil, switch to the system default cursor,
  73 Otherwise, ICON should be a vector or the name of a vector of [x y 32-chars]"
  74   (interactive "XIcon Name: ")
  75   (if (symbolp icon) (setq icon (symbol-value icon)))
  76   (sun-change-cursor-icon icon))
  77
  78 (make-local-variable '*edit-icon*)
  79 (make-variable-buffer-local 'icon-edit)
  80 (setq-default icon-edit nil)
  81 (or (assq 'icon-edit minor-mode-alist)
  82     (push '(icon-edit " IconEdit") minor-mode-alist))
  83
  84 (defun sc:edit-cursor (icon)
  85   "convert icon to rectangle, edit, and repack"
  86   (interactive "XIcon Name: ")
  87   (if (not icon) (setq icon (sc::menu-choose-cursor (selected-window) 1 1)))
  88   (if (symbolp icon) (setq icon (symbol-value icon)))
  89   (if (get-buffer "icon-edit") (kill-buffer "icon-edit"))
  90   (switch-to-buffer "icon-edit")
  91   (local-set-mouse '(text right) 'sc::menu-function)
  92   (local-set-mouse '(text left) '(sc::pic-ins-at-mouse 32))
  93   (local-set-mouse '(text middle) '(sc::pic-ins-at-mouse 64))
  94   (local-set-mouse '(text left middle) 'sc::hotspot)
  95   (sc::display-icon icon)
  96   (picture-mode)
  97   (setq icon-edit t)    ; for mode line display
  98 )
  99 \f
 100 (defun sc::pic-ins-at-mouse (char)
 101   "Picture insert char at mouse location"
 102   (mouse-move-point *mouse-window* (min 15 *mouse-x*) (min 15 *mouse-y*))
 103   (move-to-column (1+ (min 15 (current-column))) t)
 104   (delete-char -1)
 105   (insert char)
 106   (sc::goto-hotspot))
 107
 108 (defun sc::menu-function (window x y)
 109   (sun-menu-evaluate window (1+ x) y sc::menu))
 110
 111 (defmenu sc::menu
 112   ("Cursor Menu")
 113   ("Pack & Use" sc::pack-buffer-to-cursor)
 114   ("Pack to Icon" sc::pack-buffer-to-icon
 115                   (sc::menu-choose-cursor *menu-window* *menu-x* *menu-y*))
 116   ("New Icon" call-interactively 'sc::make-cursor)
 117   ("Edit Icon" sc:edit-cursor
 118                (sc::menu-choose-cursor *menu-window* *menu-x* *menu-y*))
 119   ("Set Cursor" sc:set-cursor
 120                 (sc::menu-choose-cursor *menu-window* *menu-x* *menu-y*))
 121   ("Reset Cursor" sc:set-cursor nil)
 122   ("Help" sc::edit-icon-help-menu)
 123   ("Quit" sc::quit-edit)
 124   )
 125
 126 (defun sc::quit-edit ()
 127   (interactive)
 128   (bury-buffer (current-buffer))
 129   (switch-to-buffer (other-buffer) 'no-record))
 130
 131 (defun sc::make-cursor (symbol)
 132   (interactive "SIcon Name: ")
 133   (eval (list 'defcursor symbol 0 0 ""))
 134   (sc::pack-buffer-to-icon (symbol-value symbol)))
 135
 136 (defmenu sc::edit-icon-help-menu
 137   ("Simple Icon Editor")
 138   ("Left     => CLEAR")
 139   ("Middle   => SET")
 140   ("L & M    => HOTSPOT")
 141   ("Right    => MENU"))
 142
 143 (defun sc::edit-icon-help ()
 144   (message "Left=> CLEAR  Middle=> SET  Left+Middle=> HOTSPOT  Right=> MENU"))
 145
 146 (defun sc::pack-buffer-to-cursor ()
 147     (sc::pack-buffer-to-icon *edit-icon*)
 148     (sc:set-cursor *edit-icon*))
 149
 150 (defun sc::menu-choose-cursor (window x y)
 151   "Presents a menu of cursor names, and returns one or nil"
 152   (let ((curs sc::cursors)
 153         (items))
 154     (while curs
 155       (push (sc::menu-item-for-cursor (car curs)) items)
 156       (setq curs (cdr curs)))
 157     (push (list "Choose Cursor") items)
 158     (setq menu (menu-create items))
 159     (sun-menu-evaluate window x y menu)))
 160
 161 (defun sc::menu-item-for-cursor (cursor)
 162   "apply function to selected cursor"
 163   (list (symbol-name cursor) 'quote cursor))
 164
 165 (defun sc::hotspot (window x y)
 166   (aset *edit-icon* 0 x)
 167   (aset *edit-icon* 1 y)
 168   (sc::goto-hotspot))
 169
 170 (defun sc::goto-hotspot ()
 171   (goto-line (1+ (aref *edit-icon* 1)))
 172   (move-to-column (aref *edit-icon* 0)))
 173
 174 (defun sc::display-icon (icon)
 175   (setq *edit-icon* (copy-sequence icon))
 176   (let ((string (aref *edit-icon* 2))
 177         (index 0))
 178     (while (< index 32)
 179       (let ((char (aref string index))
 180             (bit 128))
 181         (while (> bit 0)
 182           (insert (sc::char-at-bit char bit))
 183           (setq bit (lsh bit -1))))
 184       (if (eq 1 (% index 2)) (newline))
 185       (setq index (1+ index))))
 186   (sc::goto-hotspot))
 187
 188 (defun sc::char-at-bit (char bit)
 189   (if (> (logand char bit) 0) "@" " "))
 190
 191 (defun sc::pack-buffer-to-icon (icon)
 192   "Pack 16 x 16 field into icon string"
 193   (goto-char (point-min))
 194   (aset icon 0 (aref *edit-icon* 0))
 195   (aset icon 1 (aref *edit-icon* 1))
 196   (aset icon 2 (mapconcat 'sc::pack-one-line "1234567890123456" ""))
 197   (sc::goto-hotspot)
 198   )
 199
 200 (defun sc::pack-one-line (dummy)
 201   (let* (char chr1 chr2)
 202     (setq char 0 chr1 (mapconcat 'sc::pack-one-char "12345678" "") chr1 char)
 203     (setq char 0 chr2 (mapconcat 'sc::pack-one-char "12345678" "") chr2 char)
 204     (forward-line 1)
 205     (concat (char-to-string chr1) (char-to-string chr2))
 206     ))
 207
 208 (defun sc::pack-one-char (dummy)
 209   "pack following char into char, unless eolp"
 210   (if (or (eolp) (char-equal (following-char) 32))
 211       (setq char (lsh char 1))
 212     (setq char (1+ (lsh char 1))))
 213   (if (not (eolp))(forward-char)))
 214
 215 (provide 'sm-cursors)
 216
 217 ;;; sun-curs.el ends here