view lisp/gtk-mouse.el @ 5736:3192994c49ca

Convert C (un)signed long long values to bignums properly. This patch also does the following: - Uses make_fixnum instead of make_integer when the argument is guaranteed to be in the fixnum range. - Introduces make_unsigned_integer so that we handle unsigned values with the high bit set correctly. - Introduces conversions between bignums and (un)signed long long values. - Uses mp_set_memory_functions with the BSD MP code, if it exists. - Eliminates some unnecessary consing in the Lisp + and * implementations. - Fixes a problem with check_valid_xbm_inline(). This function is called during intialization. It calls Ftimes. When using pdump, this is a problem, because (a) the bignum code is not initialized until *after* dumping, so we don't try to dump any bignums, and (b) multiplication of integers is done inside bignums so we handle fixnum overflow correctly. I decided that an XBM file with dimensions that don't fit into fixnums is probably not something we want to try to handle anyway, and did the arithmetic with C values instead of Lisp values. Doing that broke one test, which started getting a different error message from the one it expected, so I adjusted the test to match the new reality. - Fixes a few miscellaneous bugs in the BSD MP code. See <CAHCOHQk0u0=eD1fUMHTNWi2Yh=1WgiYyCXdMbsGzHBNhdqYz4w@mail.gmail.com> in xemacs-patches, as well as followup messages.
author Jerry James <james@xemacs.org>
date Mon, 17 Jun 2013 10:23:00 -0600
parents 308d34e9f07d
children
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;;; gtk-mouse.el --- Mouse support for GTK window system.

;; Copyright (C) 1985, 1992-4, 1997 Free Software Foundation, Inc.
;; Copyright (C) 1995, 1996 Ben Wing.
;; Copyright (C) 2000 William Perry

;; Maintainer: XEmacs Development Team
;; Keywords: mouse, dumped

;; This file is part of XEmacs.

;; XEmacs is free software: you can redistribute it and/or modify it
;; under the terms of the GNU General Public License as published by the
;; Free Software Foundation, either version 3 of the License, or (at your
;; option) any later version.

;; XEmacs is distributed in the hope that it will be useful, but WITHOUT
;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
;; FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
;; for more details.

;; You should have received a copy of the GNU General Public License
;; along with XEmacs.  If not, see <http://www.gnu.org/licenses/>.

;;; Synched up with: Not synched.

;;; Commentary:

;; This file is dumped with XEmacs (when GTK support is compiled in).

;;; Code:

(defvar gtk-pointers-initialized nil)

(defun gtk-init-pointers ()
  (if gtk-pointers-initialized
      nil
    (set-glyph-image text-pointer-glyph
		     [gtk-resource :resource-type cursor :resource-id xterm]
		     'gtk)
    (set-glyph-image nontext-pointer-glyph
		     [gtk-resource :resource-type cursor :resource-id xterm]
		     'gtk)
    (set-glyph-image selection-pointer-glyph
		     [gtk-resource :resource-type cursor :resource-id top-left-arrow]
		     'gtk)
    (set-glyph-image modeline-pointer-glyph
		     [gtk-resource :resource-type cursor :resource-id sb-v-double-arrow]
		     'gtk)
    (set-glyph-image divider-pointer-glyph
		     [gtk-resource :resource-type cursor :resource-id sb-h-double-arrow]
		     'gtk)
    (set-glyph-image busy-pointer-glyph
		     [gtk-resource :resource-type cursor :resource-id watch]
		     'gtk)
    (set-glyph-image gc-pointer-glyph
		     [gtk-resource :resource-type cursor :resource-id watch]
		     'gtk)

    (when (featurep 'toolbar)
      (set-glyph-image toolbar-pointer-glyph
		       [gtk-resource :resource-type cursor :resource-id top-left-arrow]
		       'gtk))

    (when (featurep 'scrollbar)
      (set-glyph-image scrollbar-pointer-glyph
		       [gtk-resource :resource-type cursor :resource-id top-left-arrow]
		       'gtk))

    (setq gtk-pointers-initialized t)))