Mercurial > hg > xemacs-beta
comparison lisp/gtk-ffi.el @ 462:0784d089fdc9 r21-2-46
Import from CVS: tag r21-2-46
| author | cvs |
|---|---|
| date | Mon, 13 Aug 2007 11:44:37 +0200 |
| parents | |
| children | 3889ef128488 308d34e9f07d |
comparison
equal
deleted
inserted
replaced
| 461:120ed4009e51 | 462:0784d089fdc9 |
|---|---|
| 1 ;;; gtk-ffi.el --- Foreign function interface for the GTK object system | |
| 2 | |
| 3 ;; Copyright (C) 2000 Free Software Foundation | |
| 4 | |
| 5 ;; Maintainer: William Perry <wmperry@gnu.org> | |
| 6 ;; Keywords: extensions, dumped | |
| 7 | |
| 8 ;; This file is part of XEmacs. | |
| 9 | |
| 10 ;; XEmacs is free software; you can redistribute it and/or modify it | |
| 11 ;; 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 ;; XEmacs is distributed in the hope that it will be useful, but | |
| 16 ;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 18 ;; General Public License for more details. | |
| 19 | |
| 20 ;; You should have received a copy of the GNU General Public License | |
| 21 ;; along with XEmacs; see the file COPYING. If not, write to the Free | |
| 22 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
| 23 ;; 02111-1307, USA. | |
| 24 | |
| 25 ;;; Synched up with: Not in FSF | |
| 26 | |
| 27 ;;; Commentary: | |
| 28 | |
| 29 ;; This file is dumped with XEmacs. | |
| 30 | |
| 31 (defvar gtk-type-aliases '((GtkType . guint) | |
| 32 (GdkAtom . gulong) | |
| 33 (GdkBitmap . GdkWindow) | |
| 34 (time_t . guint) | |
| 35 (none . void) | |
| 36 (GdkDrawable . GdkWindow) | |
| 37 (GdkBitmap . GdkWindow) | |
| 38 (GdkPixmap . GdkWindow)) | |
| 39 "An assoc list of aliases for commonly used GTK types that are not | |
| 40 really part of the object system.") | |
| 41 | |
| 42 (defvar gtk-ffi-debug nil | |
| 43 "If non-nil, all functions defined wiht `gtk-import-function' will be checked | |
| 44 for missing marshallers.") | |
| 45 | |
| 46 (defun gtk-ffi-check-function (func) | |
| 47 ;; We don't call gtk-main or gtk-main-quit because it thoroughly | |
| 48 ;; hoses us (locks up xemacs handling events, but no lisp). | |
| 49 (if (not (memq func '(gtk-main gtk-main-quit))) | |
| 50 (condition-case err | |
| 51 (funcall func) | |
| 52 (error | |
| 53 (case (car err) | |
| 54 (wrong-number-of-arguments nil) | |
| 55 (error | |
| 56 (if (string= "Could not locate marshaller function" (nth 1 err)) | |
| 57 (progn | |
| 58 (set-buffer (get-buffer-create "needed marshallers")) | |
| 59 (display-buffer (current-buffer)) | |
| 60 (goto-char (point-max)) | |
| 61 (insert | |
| 62 (format "%S\n" | |
| 63 (split-string | |
| 64 (substring (nth 2 err) (length "emacs_gtk_marshal_")) "_+"))))))))))) | |
| 65 | |
| 66 (defmacro gtk-import-function (retval name &rest args) | |
| 67 (if (symbolp name) | |
| 68 (setq name (symbol-name name))) | |
| 69 (let ((lisp-name (intern (replace-in-string name "_" "-"))) | |
| 70 (doc-string nil)) | |
| 71 (setq retval (or (cdr-safe (assoc retval gtk-type-aliases)) retval) | |
| 72 doc-string (concat "The lisp version of " name ".\n" | |
| 73 (if args | |
| 74 (concat "Prototype: " (prin1-to-string args))))) | |
| 75 | |
| 76 ;; Drop off any naming of arguments, etc. | |
| 77 (if (and args (consp (car args))) | |
| 78 (setq args (mapcar 'car args))) | |
| 79 | |
| 80 ;; Get rid of any type aliases. | |
| 81 (setq args (mapcar (lambda (x) | |
| 82 (or (cdr-safe (assoc x gtk-type-aliases)) x)) args)) | |
| 83 | |
| 84 `(progn | |
| 85 (defun ,lisp-name (&rest args) | |
| 86 ,doc-string | |
| 87 (if (not (get (quote ,lisp-name) 'gtk-ffi nil)) | |
| 88 (put (quote ,lisp-name) 'gtk-ffi | |
| 89 (gtk-import-function-internal (quote ,retval) ,name | |
| 90 (quote ,args)))) | |
| 91 (gtk-call-function (get (quote ,lisp-name) 'gtk-ffi 'ignore) args)) | |
| 92 (and gtk-ffi-debug (gtk-ffi-check-function (quote ,lisp-name)))))) | |
| 93 | |
| 94 (defmacro gtk-import-variable (type name) | |
| 95 (if (symbolp name) (setq name (symbol-name name))) | |
| 96 (let ((lisp-name (intern (replace-in-string name "_" "-"))) | |
| 97 (doc-string nil)) | |
| 98 (setq type (or (cdr-safe (assoc type gtk-type-aliases)) type) | |
| 99 doc-string (concat "Retrieve the variable " name " (type: " (symbol-name type) ").\n")) | |
| 100 `(defun ,lisp-name () | |
| 101 ,doc-string | |
| 102 (gtk-import-variable-internal (quote ,type) ,name)))) | |
| 103 | |
| 104 (provide 'gtk-ffi) |