|
209
|
1 ;;; scrollbar.el --- Scrollbar support for XEmacs
|
|
|
2
|
|
|
3 ;; Copyright (C) 1995, 1997 Free Software Foundation, Inc.
|
|
|
4
|
|
|
5 ;; Maintainer: XEmacs Development Team
|
|
|
6 ;; Keywords: internal, 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
|
|
|
22 ;; Free Software Foundation, 59 Temple Place - Suite 330,
|
|
|
23 ;; Boston, MA 02111-1307, USA.
|
|
|
24
|
|
|
25 ;;; Synched up with: Not in FSF. (Completely divergent from FSF scroll-bar.el)
|
|
|
26
|
|
|
27 ;;; Commentary:
|
|
|
28
|
|
|
29 ;; This file is dumped with XEmacs (when scrollbar support is compiled in).
|
|
|
30
|
|
|
31 ;;; Code:
|
|
|
32
|
|
278
|
33 (defcustom scrollbars-visible-p ;; added for the options menu - dverna
|
|
282
|
34 (specifier-instance vertical-scrollbar-visible-p (selected-device))
|
|
278
|
35 "Whether the scrollbars are globally visible. This variable can be
|
|
|
36 customized through the options menu."
|
|
|
37 :group 'display
|
|
|
38 :type 'boolean
|
|
|
39 :set '(lambda (var val)
|
|
|
40 (if val
|
|
|
41 (progn
|
|
282
|
42 (remove-specifier vertical-scrollbar-visible-p 'global)
|
|
|
43 (remove-specifier horizontal-scrollbar-visible-p 'global))
|
|
|
44 (set-specifier vertical-scrollbar-visible-p nil 'global)
|
|
|
45 (set-specifier horizontal-scrollbar-visible-p nil 'global))
|
|
278
|
46 (setq scrollbars-visible-p val))
|
|
|
47 )
|
|
|
48
|
|
209
|
49 (defun init-scrollbar-from-resources (locale)
|
|
|
50 (when (and (featurep 'x)
|
|
|
51 (or (eq locale 'global)
|
|
|
52 (eq 'x (device-or-frame-type locale))))
|
|
276
|
53 (x-init-scrollbar-from-resources locale))
|
|
|
54 (when (and (featurep 'mswindows)
|
|
|
55 (or (eq locale 'global)
|
|
|
56 (eq 'mswindows (device-or-frame-type locale))))
|
|
|
57 (mswindows-init-scrollbar-metrics locale)))
|
|
209
|
58
|
|
|
59 ;;
|
|
|
60 ;; vertical scrollbar functions
|
|
|
61 ;;
|
|
|
62
|
|
|
63 ;;; ### Move functions from C into Lisp here!
|
|
|
64
|
|
|
65 ;;
|
|
|
66 ;; horizontal scrollbar functions
|
|
|
67 ;;
|
|
|
68
|
|
|
69 (defun scrollbar-char-left (window)
|
|
|
70 "Function called when the char-left arrow on the scrollbar is clicked.
|
|
|
71 This is the little arrow to the left of the scrollbar. One argument is
|
|
|
72 passed, the scrollbar's window. You can advise this function to
|
|
|
73 change the scrollbar behavior."
|
|
|
74 (when (window-live-p window)
|
|
|
75 (scrollbar-set-hscroll window (- (window-hscroll window) 1))
|
|
|
76 (setq zmacs-region-stays t)
|
|
|
77 nil))
|
|
|
78
|
|
|
79 (defun scrollbar-char-right (window)
|
|
|
80 "Function called when the char-right arrow on the scrollbar is clicked.
|
|
|
81 This is the little arrow to the right of the scrollbar. One argument is
|
|
|
82 passed, the scrollbar's window. You can advise this function to
|
|
|
83 change the scrollbar behavior."
|
|
|
84 (when (window-live-p window)
|
|
|
85 (scrollbar-set-hscroll window (+ (window-hscroll window) 1))
|
|
|
86 (setq zmacs-region-stays t)
|
|
|
87 nil))
|
|
|
88
|
|
|
89 (defun scrollbar-page-left (window)
|
|
|
90 "Function called when the user gives the \"page-left\" scrollbar action.
|
|
|
91 \(The way this is done can vary from scrollbar to scrollbar.\) One argument is
|
|
|
92 passed, the scrollbar's window. You can advise this function to
|
|
|
93 change the scrollbar behavior."
|
|
|
94 (when (window-live-p window)
|
|
|
95 (scrollbar-set-hscroll window (- (window-hscroll window)
|
|
|
96 (- (window-width window) 2)))
|
|
|
97 (setq zmacs-region-stays t)
|
|
|
98 nil))
|
|
|
99
|
|
|
100 (defun scrollbar-page-right (window)
|
|
|
101 "Function called when the user gives the \"page-right\" scrollbar action.
|
|
|
102 \(The way this is done can vary from scrollbar to scrollbar.\) One argument is
|
|
|
103 passed, the scrollbar's window. You can advise this function to
|
|
|
104 change the scrollbar behavior."
|
|
|
105 (when (window-live-p window)
|
|
|
106 (scrollbar-set-hscroll window (+ (window-hscroll window)
|
|
|
107 (- (window-width window) 2)))
|
|
|
108 (setq zmacs-region-stays t)
|
|
|
109 nil))
|
|
|
110
|
|
|
111 (defun scrollbar-to-left (window)
|
|
|
112 "Function called when the user gives the \"to-left\" scrollbar action.
|
|
|
113 \(The way this is done can vary from scrollbar to scrollbar.\). One argument is
|
|
|
114 passed, the scrollbar's window. You can advise this function to
|
|
|
115 change the scrollbar behavior."
|
|
|
116 (when (window-live-p window)
|
|
|
117 (scrollbar-set-hscroll window 0)
|
|
|
118 (setq zmacs-region-stays t)
|
|
|
119 nil))
|
|
|
120
|
|
|
121 (defun scrollbar-to-right (window)
|
|
|
122 "Function called when the user gives the \"to-right\" scrollbar action.
|
|
|
123 \(The way this is done can vary from scrollbar to scrollbar.\). One argument is
|
|
|
124 passed, the scrollbar's window. You can advise this function to
|
|
|
125 change the scrollbar behavior."
|
|
|
126 (when (window-live-p window)
|
|
|
127 (scrollbar-set-hscroll window 'max)
|
|
|
128 (setq zmacs-region-stays t)
|
|
|
129 nil))
|
|
|
130
|
|
|
131 (defun scrollbar-horizontal-drag (data)
|
|
|
132 "Function called when the user drags the horizontal scrollbar thumb.
|
|
|
133 One argument is passed, a cons containing the scrollbar's window and a value
|
|
|
134 representing how many columns the thumb is slid over. You can advise
|
|
|
135 this function to change the scrollbar behavior."
|
|
|
136 (let ((window (car data))
|
|
|
137 (value (cdr data)))
|
|
|
138 (when (and (window-live-p window) (integerp value))
|
|
|
139 (scrollbar-set-hscroll window value)
|
|
|
140 (setq zmacs-region-stays t)
|
|
|
141 nil)))
|
|
|
142
|
|
|
143 ;;; scrollbar.el ends here
|
