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;;; toolbar.el --- Toolbar support for XEmacs
;; Copyright (C) 1995, 1997 Free Software Foundation, Inc.
;; Maintainer: XEmacs Development Team
;; Keywords: extensions, internal
;; 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 2, 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; see the file COPYING. If not, write to the
;; Free Software Foundation, 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
;;; Synched up with: Not in FSF.
;;; Commentary:
;;; Code:
(defvar toolbar-help-enabled t
"If non-nil help is echoed for toolbar buttons.")
(defvar toolbar-icon-directory nil
"Location of standard toolbar icon bitmaps.")
(defun toolbar-make-button-list (up &optional down disabled cap-up cap-down cap-disabled)
"Calls make-glyph on each arg and returns a list of the results."
(if (featurep 'x)
(let ((up-glyph (make-glyph up))
(down-glyph (and down (make-glyph down)))
(disabled-glyph (and disabled (make-glyph disabled)))
(cap-up-glyph (and cap-up (make-glyph cap-up)))
(cap-down-glyph (and cap-down (make-glyph cap-down)))
(cap-disabled-glyph (and cap-disabled (make-glyph cap-disabled))))
(if cap-disabled
(list up-glyph down-glyph disabled-glyph
cap-up-glyph cap-down-glyph cap-disabled-glyph)
(if cap-down
(list up-glyph down-glyph disabled-glyph
cap-up-glyph cap-down-glyph)
(if cap-up
(list up-glyph down-glyph disabled-glyph cap-up-glyph)
(if disabled-glyph
(list up-glyph down-glyph disabled-glyph)
(if down-glyph
(list up-glyph down-glyph)
(list up-glyph)))))))
nil))
(defun init-toolbar-location ()
(if (not toolbar-icon-directory)
(setq toolbar-icon-directory
(file-name-as-directory
(expand-file-name "toolbar" data-directory)))))
(defun init-toolbar-from-resources (locale)
(if (and (featurep 'x)
(or (eq locale 'global)
(eq 'x (device-or-frame-type locale))))
(x-init-toolbar-from-resources locale)))
;; #### Is this actually needed or will the code in
;; default-mouse-motion-handler suffice?
(define-key global-map 'button1up 'release-toolbar-button)
(defvar toolbar-map (let ((m (make-sparse-keymap)))
(set-keymap-name m 'toolbar-map)
m)
"Keymap consulted for mouse-clicks over a toolbar.")
(define-key toolbar-map 'button1 'press-toolbar-button)
(define-key toolbar-map 'button1up 'release-and-activate-toolbar-button)
(defvar last-pressed-toolbar-button nil)
(defvar toolbar-active nil)
;;
;; It really sucks that we also have to tie onto
;; default-mouse-motion-handler to make sliding buttons work right.
;;
(defun press-toolbar-button (event)
"Press a toolbar button. This only changes its appearance.
Call function stored in `toolbar-blank-press-function,' if any, with EVENT as
an argument if press is over a blank area of the toolbar."
(interactive "_e")
(setq this-command last-command)
(let ((button (event-toolbar-button event)))
;; We silently ignore non-buttons. This most likely means we are
;; over a blank part of the toolbar.
(setq toolbar-active t)
(if (toolbar-button-p button)
(progn
(set-toolbar-button-down-flag button t)
(setq last-pressed-toolbar-button button))
;; Added by Bob Weiner, Motorola Inc., 10/6/95, to handle
;; presses on blank portions of toolbars.
(and (boundp 'toolbar-blank-press-function)
(functionp toolbar-blank-press-function)
(funcall toolbar-blank-press-function event)))))
(defun release-and-activate-toolbar-button (event)
"Release a toolbar button and activate its callback.
Call function stored in `toolbar-blank-release-function,' if any, with EVENT
as an argument if release is over a blank area of the toolbar."
(interactive "_e")
(or (button-release-event-p event)
(error "%s must be invoked by a mouse-release" this-command))
(release-toolbar-button event)
(let ((button (event-toolbar-button event)))
(if (and (toolbar-button-p button)
(toolbar-button-enabled-p button)
(toolbar-button-callback button))
(let ((callback (toolbar-button-callback button)))
(setq this-command callback)
;; Handle arbitrary functions.
(if (functionp callback)
(if (commandp callback)
(call-interactively callback)
(funcall callback))
(eval callback))))))
;; If current is not t, then only release the toolbar button stored in
;; last-pressed-toolbar-button
(defun release-toolbar-button-internal (event current)
(let ((button (event-toolbar-button event)))
(setq zmacs-region-stays t)
(if (and last-pressed-toolbar-button
(not (eq last-pressed-toolbar-button button))
(toolbar-button-p last-pressed-toolbar-button))
(progn
(set-toolbar-button-down-flag last-pressed-toolbar-button nil)
(setq last-pressed-toolbar-button nil)))
(if (and current (toolbar-button-p button))
(set-toolbar-button-down-flag button nil))))
(defun release-toolbar-button (event)
"Release all pressed toolbar buttons."
(interactive "_e")
(or (button-release-event-p event)
(error "%s must be invoked by a mouse-release" this-command))
(release-toolbar-button-internal event t)
;; Don't set this-command if we're being called
;; from release-and-activate-toolbar-button.
(if (interactive-p)
(setq this-command last-command))
(setq toolbar-active nil))
(defun release-previous-toolbar-button (event)
(setq zmacs-region-stays t)
(release-toolbar-button-internal event nil))
;;; toolbar.el ends here
|
