1 /*--------------------------------*-C-*---------------------------------*
3 *----------------------------------------------------------------------*
5 * Copyright (c) 1997,1998 mj olesen <olesen@me.QueensU.CA>
6 * Copyright (c) 1998 Alfredo K. Kojima <kojima@windowmaker.org>
7 * - N*XTstep like scrollbars
8 * Copyright (c) 1999-2001 Geoff Wing <gcw@pobox.com>
9 * Copyright (c) 2004 Marc Lehmann <pcg@goof.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 */
29 /*----------------------------------------------------------------------*/
32 * Map or unmap a scrollbar. Returns non-zero upon change of state
35 rxvt_term::scrollbar_mapping (int map)
39 #ifdef HAVE_SCROLLBARS
49 XMapWindow (display->display, scrollBar.win);
56 XUnmapWindow (display->display, scrollBar.win);
64 rxvt_term::resize_scrollbar ()
66 #ifdef HAVE_SCROLLBARS
69 #define R_SCROLLBEG_XTERM 0
70 #define R_SCROLLEND_XTERM szHint.height
71 #define R_SCROLLBEG_NEXT 0
72 #define R_SCROLLEND_NEXT szHint.height - (SB_BUTTON_TOTAL_HEIGHT + \
74 #define R_SCROLLBEG_RXVT (scrollBar.width + 1) + sb_shadow
75 #define R_SCROLLEND_RXVT szHint.height - R_SCROLLBEG_RXVT - \
78 #if defined(PLAIN_SCROLLBAR)
79 if (scrollBar.style == R_SB_PLAIN)
81 scrollBar.beg = R_SCROLLBEG_XTERM;
82 scrollBar.end = R_SCROLLEND_XTERM;
83 scrollBar.update = &rxvt_term::scrollbar_show_plain;
86 #if defined(XTERM_SCROLLBAR)
87 if (scrollBar.style == R_SB_XTERM)
89 scrollBar.beg = R_SCROLLBEG_XTERM;
90 scrollBar.end = R_SCROLLEND_XTERM;
91 scrollBar.update = &rxvt_term::scrollbar_show_xterm;
94 #if defined(NEXT_SCROLLBAR)
95 if (scrollBar.style == R_SB_NEXT)
97 scrollBar.beg = R_SCROLLBEG_NEXT;
98 scrollBar.end = R_SCROLLEND_NEXT;
99 scrollBar.update = &rxvt_term::scrollbar_show_next;
102 #if defined(RXVT_SCROLLBAR)
103 if (scrollBar.style == R_SB_RXVT)
105 scrollBar.beg = R_SCROLLBEG_RXVT;
106 scrollBar.end = R_SCROLLEND_RXVT;
107 scrollBar.update = &rxvt_term::scrollbar_show_rxvt;
113 /* create the scrollbar window */
114 scrollBar.win = XCreateSimpleWindow (display->display,
117 scrollbar_TotalWidth (),
120 pix_colors[Color_fg],
121 pix_colors[Color_border]);
123 XStoreName (display->display, scrollBar.win, "scrollbar");
125 XDefineCursor (display->display, scrollBar.win, leftptr_cursor);
127 XSelectInput (display->display, scrollBar.win,
128 ExposureMask | ButtonPressMask | ButtonReleaseMask
129 | Button1MotionMask | Button2MotionMask
130 | Button3MotionMask);
131 scrollbar_ev.start (display, scrollBar.win);
139 XMapWindow (display->display, scrollBar.win);
144 * Update current scrollbar view w.r.t. slider heights, etc.
147 rxvt_term::scrollbar_show (int update)
150 #ifdef HAVE_SCROLLBARS
151 int top, bot, len, adj;
153 if (!scrollbar_visible ())
158 top = (TermWin.nscrolled - TermWin.view_start);
159 bot = top + (TermWin.nrow - 1);
160 len = max ((TermWin.nscrolled + (TermWin.nrow - 1)), 1);
161 adj = (((bot - top) * scrollbar_size ()) % len) > 0 ? 1 : 0;
163 scrollBar.top = (scrollBar.beg + (top * scrollbar_size ()) / len);
164 scrollbar_len = ((bot - top) * scrollbar_size ()) / len +
165 scrollbar_minheight () + adj;
166 scrollBar.bot = (scrollBar.top + scrollbar_len);
168 if (scrollBar.top == last_top
169 && scrollBar.bot == last_bot
170 && (scrollBar.state == last_state || !scrollbar_isUpDn ()))
174 ret = (this->*scrollBar.update) (update, last_top, last_bot, scrollbar_len);
176 last_top = scrollBar.top;
177 last_bot = scrollBar.bot;
178 last_state = scrollBar.state;
185 rxvt_term::setup_scrollbar (const char *scrollalign, const char *scrollstyle, const char *thickness)
187 #ifdef HAVE_SCROLLBARS
191 # if defined(RXVT_SCROLLBAR)
193 # elif defined(XTERM_SCROLLBAR)
195 # elif defined(NEXT_SCROLLBAR)
197 # elif defined(PLAIN_SCROLLBAR)
203 # if (defined(NEXT_SCROLLBAR) || defined(XTERM_SCROLLBAR) || defined(PLAIN_SCROLLBAR))
206 # ifdef NEXT_SCROLLBAR
207 if (strncasecmp (scrollstyle, "next", 4) == 0)
210 # ifdef XTERM_SCROLLBAR
211 if (strncasecmp (scrollstyle, "xterm", 5) == 0)
214 # ifdef PLAIN_SCROLLBAR
215 if (strncasecmp (scrollstyle, "plain", 5) == 0)
221 if (style == R_SB_NEXT)
222 width = SB_WIDTH_NEXT;
223 else if (style == R_SB_XTERM)
224 width = SB_WIDTH_XTERM;
225 else if (style == R_SB_PLAIN)
226 width = SB_WIDTH_PLAIN;
227 else /* if (style == R_SB_RXVT) */
228 width = SB_WIDTH_RXVT;
230 if (style != R_SB_NEXT) /* dishonour request - for now */
231 if (thickness && (i = atoi (thickness)) >= SB_WIDTH_MINIMUM)
232 width = min (i, SB_WIDTH_MAXIMUM);
234 # if defined(RXVT_SCROLLBAR)
235 if (! (options & Opt_scrollBar_floating) && style == R_SB_RXVT)
239 scrollBar.style = style;
240 scrollBar.width = width;
242 /* scrollbar_align = R_SB_ALIGN_CENTRE; */
245 if (strncasecmp (scrollalign, "top", 3) == 0)
246 scrollbar_align = R_SB_ALIGN_TOP;
247 else if (strncasecmp (scrollalign, "bottom", 6) == 0)
248 scrollbar_align = R_SB_ALIGN_BOTTOM;
253 /*----------------------- end-of-file (C source) -----------------------*/