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- ;; Scrollbar support.
- ;; Copyright (C) 1995 Board of Trustees, University of Illinois
-
- ;; 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. (Completely divergent from FSF scroll-bar.el)
-
- (defun init-scrollbar-from-resources (locale)
- (when (and (featurep 'x)
- (or (eq locale 'global)
- (eq 'x (device-or-frame-type locale))))
- (x-init-scrollbar-from-resources locale)))
-
- ;;
- ;; vertical scrollbar functions
- ;;
-
- ;;; ### Move functions from C into Lisp here!
-
- ;;
- ;; horizontal scrollbar functions
- ;;
-
- (defun scrollbar-char-left (window)
- "Function called when the char-left arrow on the scrollbar is clicked.
- This is the little arrow to the left of the scrollbar. One argument is
- passed, the scrollbar's window. You can advise this function to
- change the scrollbar behavior."
- (when (window-live-p window)
- (scrollbar-set-hscroll window (- (window-hscroll window) 1))
- (setq zmacs-region-stays t)
- nil))
-
- (defun scrollbar-char-right (window)
- "Function called when the char-right arrow on the scrollbar is clicked.
- This is the little arrow to the right of the scrollbar. One argument is
- passed, the scrollbar's window. You can advise this function to
- change the scrollbar behavior."
- (when (window-live-p window)
- (scrollbar-set-hscroll window (+ (window-hscroll window) 1))
- (setq zmacs-region-stays t)
- nil))
-
- (defun scrollbar-page-left (window)
- "Function called when the user gives the \"page-left\" scrollbar action.
- \(The way this is done can vary from scrollbar to scrollbar.\) One argument is
- passed, the scrollbar's window. You can advise this function to
- change the scrollbar behavior."
- (when (window-live-p window)
- (scrollbar-set-hscroll window (- (window-hscroll window)
- (- (window-width window) 2)))
- (setq zmacs-region-stays t)
- nil))
-
- (defun scrollbar-page-right (window)
- "Function called when the user gives the \"page-right\" scrollbar action.
- \(The way this is done can vary from scrollbar to scrollbar.\) One argument is
- passed, the scrollbar's window. You can advise this function to
- change the scrollbar behavior."
- (when (window-live-p window)
- (scrollbar-set-hscroll window (+ (window-hscroll window)
- (- (window-width window) 2)))
- (setq zmacs-region-stays t)
- nil))
-
- (defun scrollbar-to-left (window)
- "Function called when the user gives the \"to-left\" scrollbar action.
- \(The way this is done can vary from scrollbar to scrollbar.\). One argument is
- passed, the scrollbar's window. You can advise this function to
- change the scrollbar behavior."
- (when (window-live-p window)
- (scrollbar-set-hscroll window 0)
- (setq zmacs-region-stays t)
- nil))
-
- (defun scrollbar-to-right (window)
- "Function called when the user gives the \"to-right\" scrollbar action.
- \(The way this is done can vary from scrollbar to scrollbar.\). One argument is
- passed, the scrollbar's window. You can advise this function to
- change the scrollbar behavior."
- (when (window-live-p window)
- (scrollbar-set-hscroll window 'max)
- (setq zmacs-region-stays t)
- nil))
-
- (defun scrollbar-horizontal-drag (data)
- "Function called when the user drags the horizontal scrollbar thumb.
- One argument is passed, a cons containing the scrollbar's window and a value
- representing how many columns the thumb is slid over. You can advise
- this function to change the scrollbar behavior."
- (let ((window (car data))
- (value (cdr data)))
- (when (and (window-live-p window) (integerp value))
- (scrollbar-set-hscroll window value)
- (setq zmacs-region-stays t)
- nil)))
-