1 /*--------------------------------*-C-*---------------------------------*
3 *----------------------------------------------------------------------*
4 * $Id: scrollbar.C,v 1.9 2004-01-31 02:15:02 pcg Exp $
6 * Copyright (c) 1997,1998 mj olesen <olesen@me.QueensU.CA>
7 * Copyright (c) 1998 Alfredo K. Kojima <kojima@windowmaker.org>
8 * - N*XTstep like scrollbars
9 * Copyright (c) 1999-2001 Geoff Wing <gcw@pobox.com>
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 *----------------------------------------------------------------------*/
26 #include "../config.h" /* NECESSARY */
27 #include "rxvt.h" /* NECESSARY */
28 #include "scrollbar.intpro" /* PROTOS for internal routines */
30 /*----------------------------------------------------------------------*/
33 * Map or unmap a scrollbar. Returns non-zero upon change of state
36 rxvt_term::scrollbar_mapping (int map)
40 #ifdef HAVE_SCROLLBARS
41 if (map && !scrollbar_visible()) {
46 XMapWindow(Xdisplay, scrollBar.win);
49 } else if (!map && scrollbar_visible()) {
51 XUnmapWindow(Xdisplay, scrollBar.win);
59 rxvt_term::resize_scrollbar ()
61 #ifdef HAVE_SCROLLBARS
64 #define R_SCROLLBEG_XTERM 0
65 #define R_SCROLLEND_XTERM szHint.height
66 #define R_SCROLLBEG_NEXT 0
67 #define R_SCROLLEND_NEXT szHint.height - (SB_BUTTON_TOTAL_HEIGHT + \
69 #define R_SCROLLBEG_RXVT (scrollBar.width + 1) + sb_shadow
70 #define R_SCROLLEND_RXVT szHint.height - R_SCROLLBEG_RXVT - \
73 #if defined(XTERM_SCROLLBAR)
74 if (scrollBar.style == R_SB_XTERM) {
75 scrollBar.beg = R_SCROLLBEG_XTERM;
76 scrollBar.end = R_SCROLLEND_XTERM;
77 scrollBar.update = &rxvt_term::scrollbar_show_xterm;
80 #if defined(NEXT_SCROLLBAR)
81 if (scrollBar.style == R_SB_NEXT) {
82 scrollBar.beg = R_SCROLLBEG_NEXT;
83 scrollBar.end = R_SCROLLEND_NEXT;
84 scrollBar.update = &rxvt_term::scrollbar_show_next;
87 #if defined(RXVT_SCROLLBAR)
88 if (scrollBar.style == R_SB_RXVT) {
89 scrollBar.beg = R_SCROLLBEG_RXVT;
90 scrollBar.end = R_SCROLLEND_RXVT;
91 scrollBar.update = &rxvt_term::scrollbar_show_rxvt;
96 /* create the scrollbar window */
97 scrollBar.win = XCreateSimpleWindow(Xdisplay,
100 scrollbar_TotalWidth(),
104 PixColors[Color_bg]);
106 XStoreName(Xdisplay, scrollBar.win, "scrollbar");
108 XDefineCursor(Xdisplay, scrollBar.win, leftptr_cursor);
109 XSelectInput(Xdisplay, scrollBar.win,
110 (ExposureMask | ButtonPressMask | ButtonReleaseMask
111 | Button1MotionMask | Button2MotionMask
112 | Button3MotionMask));
117 XMapWindow (Xdisplay, scrollBar.win);
122 * Update current scrollbar view w.r.t. slider heights, etc.
125 rxvt_term::scrollbar_show (int update)
128 #ifdef HAVE_SCROLLBARS
129 int top, bot, len, adj;
131 if (!scrollbar_visible())
135 top = (TermWin.nscrolled - TermWin.view_start);
136 bot = top + (TermWin.nrow - 1);
137 len = max((TermWin.nscrolled + (TermWin.nrow - 1)), 1);
138 adj = (((bot - top) * scrollbar_size()) % len) > 0 ? 1 : 0;
140 scrollBar.top = (scrollBar.beg + (top * scrollbar_size()) / len);
141 scrollbar_len = ((bot - top) * scrollbar_size()) / len +
142 scrollbar_minheight() + adj;
143 scrollBar.bot = (scrollBar.top + scrollbar_len);
145 if (scrollBar.top == last_top
146 && scrollBar.bot == last_bot
147 && (scrollBar.state == last_state || !scrollbar_isUpDn()))
151 ret = (this->*scrollBar.update) (update, last_top, last_bot, scrollbar_len);
153 last_top = scrollBar.top;
154 last_bot = scrollBar.bot;
155 last_state = scrollBar.state;
162 rxvt_term::setup_scrollbar (const char *scrollalign, const char *scrollstyle, const char *thickness)
164 #ifdef HAVE_SCROLLBARS
168 # if defined(RXVT_SCROLLBAR) || !(defined(NEXT_SCROLLBAR) || defined(XTERM_SCROLLBAR))
171 # ifdef NEXT_SCROLLBAR
173 # elif defined(XTERM_SCROLLBAR)
178 # if (defined(NEXT_SCROLLBAR) || defined(XTERM_SCROLLBAR))
180 # ifdef NEXT_SCROLLBAR
181 if (STRNCASECMP(scrollstyle, "next", 4) == 0)
184 # ifdef XTERM_SCROLLBAR
185 if (STRNCASECMP(scrollstyle, "xterm", 5) == 0)
190 if (style == R_SB_NEXT)
191 width = SB_WIDTH_NEXT;
192 else if (style == R_SB_XTERM)
193 width = SB_WIDTH_XTERM;
194 else /* if (style == R_SB_RXVT) */
195 width = SB_WIDTH_RXVT;
197 if (style != R_SB_NEXT) /* dishonour request - for now */
198 if (thickness && (i = atoi(thickness)) >= SB_WIDTH_MINIMUM)
199 width = min(i, SB_WIDTH_MAXIMUM);
201 # if defined(RXVT_SCROLLBAR)
202 if (!(Options & Opt_scrollBar_floating) && style == R_SB_RXVT)
206 scrollBar.style = style;
207 scrollBar.width = width;
209 /* scrollbar_align = R_SB_ALIGN_CENTRE; */
211 if (STRNCASECMP(scrollalign, "top", 3) == 0)
212 scrollbar_align = R_SB_ALIGN_TOP;
213 else if (STRNCASECMP(scrollalign, "bottom", 6) == 0)
214 scrollbar_align = R_SB_ALIGN_BOTTOM;
219 /*----------------------- end-of-file (C source) -----------------------*/