annotate lisp/gtk-ffi.el @ 593:5fd7ba8b56e7

[xemacs-hg @ 2001-05-31 12:45:27 by ben] xemacs-faq.texi: Major rewrite. Update all MS Windows info to current. Redo section 6.1 almost completely. Incorporate sections 1 and 2 of Hrvoje's FAQ. etags.el: Fix infloop when going up to the root. s\cygwin32.h: Don't unilaterally include ntplay, but only when we're compiling with native sound (look in configure now). event-msw.c: Fix yet more problems with C-g handling. Implement debug-mswindows-events. event-stream.c, events.h, signal.c, sysdep.h: Rearrange the signal-handling code to eliminate the former spaghetti logic paths in it. Document clearly what "low-level" and "high-level" timeouts are. Rename some functions with unclear names (e.g. "...alarm...") to names that reflect what they actually do (e.g. "...async_timeout..."). Fix numerous bugs discovered in the process. console-x.h, event-Xt.c, event-msw.c, frame-x.c: Hopefully make XEmacs properly maintain the "iconified" state on frames at all times. This should fix the "can't delete a frame with C-x 5 0 when there's another iconified frame out there" bug. Put a notice in of further changes that should probably be made to clean up the frame-visibility support. (especially directed at Jan Vroonhof) lisp.h, miscplay.c: Rename SBufbyte to CBufbyte to avoid a misleading name. Eliminate UChar, which is not used anywhere and contributes no semantic info. Add a comment about the documentation-only properties of the char/unsigned char typedefs. Add SChar_Binary as an explicitly `signed' version of Char_Binary and put back the `signed' declarations in miscplay.c. alloc.c: Use char typedefs. console-msw.c, device-msw.c, dialog-msw.c, editfns.c, fileio.c, glyphs-eimage.c, menubar-msw.c, ntplay.c, objects-msw.c, realpath.c, redisplay-msw.c, select-msw.c, syswindows.h, win32.c: Eliminate numerous C++ errors. frame-msw.c: Eliminate numerous C++ errors and Mule-ize. glyphs-msw.c: Eliminate numerous C++ errors and use char typedefs. configure.in: Fix problems detecting both native and Linux sound on Cygwin when compiled with --with-msw=no. Rearrange file-coding handling a bit to avoid warning when compiling with Mule. configure.in, configure.usage, INSTALL: Document XEMACS_CC and corresponding compiler option --xemacs-compiler. Explain how to build xemacs using a C++ compiler.
author ben
date Thu, 31 May 2001 12:45:41 +0000
parents 0784d089fdc9
children 3889ef128488 308d34e9f07d
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1 ;;; gtk-ffi.el --- Foreign function interface for the GTK object system
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2
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3 ;; Copyright (C) 2000 Free Software Foundation
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4
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5 ;; Maintainer: William Perry <wmperry@gnu.org>
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6 ;; Keywords: extensions, dumped
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7
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8 ;; This file is part of XEmacs.
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9
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10 ;; XEmacs is free software; you can redistribute it and/or modify it
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11 ;; under the terms of the GNU General Public License as published by
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12 ;; the Free Software Foundation; either version 2, or (at your option)
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13 ;; any later version.
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14
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15 ;; XEmacs is distributed in the hope that it will be useful, but
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16 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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18 ;; General Public License for more details.
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19
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20 ;; You should have received a copy of the GNU General Public License
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21 ;; along with XEmacs; see the file COPYING. If not, write to the Free
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22 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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23 ;; 02111-1307, USA.
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24
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25 ;;; Synched up with: Not in FSF
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26
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27 ;;; Commentary:
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28
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29 ;; This file is dumped with XEmacs.
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30
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31 (defvar gtk-type-aliases '((GtkType . guint)
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32 (GdkAtom . gulong)
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33 (GdkBitmap . GdkWindow)
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34 (time_t . guint)
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35 (none . void)
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36 (GdkDrawable . GdkWindow)
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37 (GdkBitmap . GdkWindow)
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38 (GdkPixmap . GdkWindow))
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39 "An assoc list of aliases for commonly used GTK types that are not
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40 really part of the object system.")
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41
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42 (defvar gtk-ffi-debug nil
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43 "If non-nil, all functions defined wiht `gtk-import-function' will be checked
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44 for missing marshallers.")
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45
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46 (defun gtk-ffi-check-function (func)
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47 ;; We don't call gtk-main or gtk-main-quit because it thoroughly
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48 ;; hoses us (locks up xemacs handling events, but no lisp).
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49 (if (not (memq func '(gtk-main gtk-main-quit)))
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50 (condition-case err
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51 (funcall func)
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52 (error
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53 (case (car err)
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54 (wrong-number-of-arguments nil)
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55 (error
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56 (if (string= "Could not locate marshaller function" (nth 1 err))
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57 (progn
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58 (set-buffer (get-buffer-create "needed marshallers"))
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59 (display-buffer (current-buffer))
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60 (goto-char (point-max))
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61 (insert
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62 (format "%S\n"
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63 (split-string
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64 (substring (nth 2 err) (length "emacs_gtk_marshal_")) "_+")))))))))))
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65
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66 (defmacro gtk-import-function (retval name &rest args)
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67 (if (symbolp name)
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68 (setq name (symbol-name name)))
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69 (let ((lisp-name (intern (replace-in-string name "_" "-")))
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70 (doc-string nil))
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71 (setq retval (or (cdr-safe (assoc retval gtk-type-aliases)) retval)
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72 doc-string (concat "The lisp version of " name ".\n"
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73 (if args
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74 (concat "Prototype: " (prin1-to-string args)))))
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75
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76 ;; Drop off any naming of arguments, etc.
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77 (if (and args (consp (car args)))
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78 (setq args (mapcar 'car args)))
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79
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80 ;; Get rid of any type aliases.
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81 (setq args (mapcar (lambda (x)
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82 (or (cdr-safe (assoc x gtk-type-aliases)) x)) args))
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83
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84 `(progn
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85 (defun ,lisp-name (&rest args)
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86 ,doc-string
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87 (if (not (get (quote ,lisp-name) 'gtk-ffi nil))
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88 (put (quote ,lisp-name) 'gtk-ffi
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89 (gtk-import-function-internal (quote ,retval) ,name
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90 (quote ,args))))
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91 (gtk-call-function (get (quote ,lisp-name) 'gtk-ffi 'ignore) args))
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92 (and gtk-ffi-debug (gtk-ffi-check-function (quote ,lisp-name))))))
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93
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94 (defmacro gtk-import-variable (type name)
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95 (if (symbolp name) (setq name (symbol-name name)))
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96 (let ((lisp-name (intern (replace-in-string name "_" "-")))
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97 (doc-string nil))
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98 (setq type (or (cdr-safe (assoc type gtk-type-aliases)) type)
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99 doc-string (concat "Retrieve the variable " name " (type: " (symbol-name type) ").\n"))
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100 `(defun ,lisp-name ()
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101 ,doc-string
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102 (gtk-import-variable-internal (quote ,type) ,name))))
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103
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104 (provide 'gtk-ffi)