| 1 |
/*----------------------------------------------------------------------* |
| 2 |
* File: scrollbar.C |
| 3 |
*----------------------------------------------------------------------* |
| 4 |
* |
| 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) 2004-2006 Marc Lehmann <pcg@goof.com> |
| 10 |
* |
| 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. |
| 15 |
* |
| 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. |
| 20 |
* |
| 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 |
*----------------------------------------------------------------------*/ |
| 25 |
|
| 26 |
#include "../config.h" /* NECESSARY */ |
| 27 |
#include "rxvt.h" /* NECESSARY */ |
| 28 |
|
| 29 |
/*----------------------------------------------------------------------*/ |
| 30 |
|
| 31 |
/* |
| 32 |
* Map or unmap a scrollbar. Returns non-zero upon change of state |
| 33 |
*/ |
| 34 |
int |
| 35 |
rxvt_term::scrollbar_mapping (int map) |
| 36 |
{ |
| 37 |
int change = 0; |
| 38 |
|
| 39 |
if (map) |
| 40 |
{ |
| 41 |
scrollBar.state = STATE_IDLE; |
| 42 |
|
| 43 |
if (!scrollBar.win) |
| 44 |
resize_scrollbar (); |
| 45 |
|
| 46 |
if (scrollBar.win) |
| 47 |
{ |
| 48 |
XMapWindow (dpy, scrollBar.win); |
| 49 |
change = 1; |
| 50 |
} |
| 51 |
} |
| 52 |
else |
| 53 |
{ |
| 54 |
scrollBar.state = 0; |
| 55 |
XUnmapWindow (dpy, scrollBar.win); |
| 56 |
change = 1; |
| 57 |
} |
| 58 |
|
| 59 |
return change; |
| 60 |
} |
| 61 |
|
| 62 |
void |
| 63 |
rxvt_term::resize_scrollbar () |
| 64 |
{ |
| 65 |
int delayed_init = 0; |
| 66 |
int window_sb_x = 0; |
| 67 |
|
| 68 |
if (option (Opt_scrollBar_right)) |
| 69 |
window_sb_x = szHint.width - scrollBar.total_width (); |
| 70 |
|
| 71 |
#define R_SCROLLBEG_XTERM 0 |
| 72 |
#define R_SCROLLEND_XTERM szHint.height |
| 73 |
#define R_SCROLLBEG_NEXT 0 |
| 74 |
#define R_SCROLLEND_NEXT szHint.height - (SB_BUTTON_TOTAL_HEIGHT + \ |
| 75 |
SB_PADDING) |
| 76 |
#define R_SCROLLBEG_RXVT (scrollBar.width + 1) + scrollBar.shadow |
| 77 |
#define R_SCROLLEND_RXVT szHint.height - R_SCROLLBEG_RXVT - \ |
| 78 |
(2 * scrollBar.shadow) |
| 79 |
|
| 80 |
#if defined(PLAIN_SCROLLBAR) |
| 81 |
if (scrollBar.style == R_SB_PLAIN) |
| 82 |
{ |
| 83 |
scrollBar.beg = R_SCROLLBEG_XTERM; |
| 84 |
scrollBar.end = R_SCROLLEND_XTERM; |
| 85 |
scrollBar.update = &rxvt_term::scrollbar_show_plain; |
| 86 |
} |
| 87 |
#endif |
| 88 |
#if defined(XTERM_SCROLLBAR) |
| 89 |
if (scrollBar.style == R_SB_XTERM) |
| 90 |
{ |
| 91 |
scrollBar.beg = R_SCROLLBEG_XTERM; |
| 92 |
scrollBar.end = R_SCROLLEND_XTERM; |
| 93 |
scrollBar.update = &rxvt_term::scrollbar_show_xterm; |
| 94 |
} |
| 95 |
#endif |
| 96 |
#if defined(NEXT_SCROLLBAR) |
| 97 |
if (scrollBar.style == R_SB_NEXT) |
| 98 |
{ |
| 99 |
scrollBar.beg = R_SCROLLBEG_NEXT; |
| 100 |
scrollBar.end = R_SCROLLEND_NEXT; |
| 101 |
scrollBar.update = &rxvt_term::scrollbar_show_next; |
| 102 |
} |
| 103 |
#endif |
| 104 |
#if defined(RXVT_SCROLLBAR) |
| 105 |
if (scrollBar.style == R_SB_RXVT) |
| 106 |
{ |
| 107 |
scrollBar.beg = R_SCROLLBEG_RXVT; |
| 108 |
scrollBar.end = R_SCROLLEND_RXVT; |
| 109 |
scrollBar.update = &rxvt_term::scrollbar_show_rxvt; |
| 110 |
} |
| 111 |
#endif |
| 112 |
|
| 113 |
if (!scrollBar.win) |
| 114 |
{ |
| 115 |
/* create the scrollbar window */ |
| 116 |
scrollBar.win = XCreateSimpleWindow (dpy, |
| 117 |
parent[0], |
| 118 |
window_sb_x, 0, |
| 119 |
scrollBar.total_width (), |
| 120 |
szHint.height, |
| 121 |
0, |
| 122 |
pix_colors[Color_fg], |
| 123 |
pix_colors[Color_border]); |
| 124 |
XDefineCursor (dpy, scrollBar.win, scrollBar.leftptr_cursor); |
| 125 |
|
| 126 |
XSelectInput (dpy, scrollBar.win, |
| 127 |
ExposureMask | ButtonPressMask | ButtonReleaseMask |
| 128 |
| Button1MotionMask | Button2MotionMask |
| 129 |
| Button3MotionMask); |
| 130 |
scrollbar_ev.start (display, scrollBar.win); |
| 131 |
|
| 132 |
delayed_init = 1; |
| 133 |
} |
| 134 |
else |
| 135 |
XMoveResizeWindow (dpy, scrollBar.win, |
| 136 |
window_sb_x, 0, |
| 137 |
scrollBar.total_width (), szHint.height); |
| 138 |
|
| 139 |
scrollbar_show (1); |
| 140 |
|
| 141 |
if (delayed_init) |
| 142 |
XMapWindow (dpy, scrollBar.win); |
| 143 |
} |
| 144 |
|
| 145 |
/* |
| 146 |
* Update current scrollbar view w.r.t. slider heights, etc. |
| 147 |
*/ |
| 148 |
int |
| 149 |
rxvt_term::scrollbar_show (int update) |
| 150 |
{ |
| 151 |
int ret = 0; |
| 152 |
|
| 153 |
if (!scrollBar.state) |
| 154 |
return 0; |
| 155 |
|
| 156 |
if (update) |
| 157 |
{ |
| 158 |
int top = view_start - top_row; |
| 159 |
int bot = top + (nrow - 1); |
| 160 |
int len = max (nrow - 1 - top_row, 1); |
| 161 |
int size = (bot - top) * scrollBar.size (); |
| 162 |
|
| 163 |
scrollBar.top = (scrollBar.beg + (top * scrollBar.size ()) / len); |
| 164 |
scrollBar.len = size / len + scrollBar.min_height () + (size % len > 0); |
| 165 |
scrollBar.bot = (scrollBar.top + scrollBar.len); |
| 166 |
/* no change */ |
| 167 |
if (scrollBar.top == scrollBar.last_top |
| 168 |
&& scrollBar.bot == scrollBar.last_bot |
| 169 |
&& (scrollBar.state == scrollBar.last_state |
| 170 |
|| !(scrollBar.state == STATE_UP || scrollBar.state == STATE_DOWN))) |
| 171 |
return 0; |
| 172 |
} |
| 173 |
|
| 174 |
ret = (this->*scrollBar.update) (update, scrollBar.last_top, scrollBar.last_bot, scrollBar.len); |
| 175 |
|
| 176 |
scrollBar.last_top = scrollBar.top; |
| 177 |
scrollBar.last_bot = scrollBar.bot; |
| 178 |
scrollBar.last_state = scrollBar.state; |
| 179 |
|
| 180 |
return ret; |
| 181 |
} |
| 182 |
|
| 183 |
void |
| 184 |
scrollBar_t::setup (rxvt_term *term) |
| 185 |
{ |
| 186 |
int i; |
| 187 |
short style, width; |
| 188 |
const char *scrollalign, *scrollstyle, *thickness; |
| 189 |
|
| 190 |
this->term = term; |
| 191 |
scrollalign = term->rs[Rs_scrollBar_align]; |
| 192 |
scrollstyle = term->rs[Rs_scrollstyle]; |
| 193 |
thickness = term->rs[Rs_scrollBar_thickness]; |
| 194 |
|
| 195 |
# if defined(RXVT_SCROLLBAR) |
| 196 |
style = R_SB_RXVT; |
| 197 |
# elif defined(XTERM_SCROLLBAR) |
| 198 |
style = R_SB_XTERM; |
| 199 |
# elif defined(NEXT_SCROLLBAR) |
| 200 |
style = R_SB_NEXT; |
| 201 |
# elif defined(PLAIN_SCROLLBAR) |
| 202 |
style = R_SB_PLAIN; |
| 203 |
#else |
| 204 |
style = R_SB_RXVT; |
| 205 |
# endif |
| 206 |
|
| 207 |
# if (defined(NEXT_SCROLLBAR) || defined(XTERM_SCROLLBAR) || defined(PLAIN_SCROLLBAR)) |
| 208 |
if (scrollstyle) |
| 209 |
{ |
| 210 |
# ifdef NEXT_SCROLLBAR |
| 211 |
if (strncasecmp (scrollstyle, "next", 4) == 0) |
| 212 |
style = R_SB_NEXT; |
| 213 |
# endif |
| 214 |
# ifdef XTERM_SCROLLBAR |
| 215 |
if (strncasecmp (scrollstyle, "xterm", 5) == 0) |
| 216 |
style = R_SB_XTERM; |
| 217 |
# endif |
| 218 |
# ifdef PLAIN_SCROLLBAR |
| 219 |
if (strncasecmp (scrollstyle, "plain", 5) == 0) |
| 220 |
style = R_SB_PLAIN; |
| 221 |
# endif |
| 222 |
|
| 223 |
} |
| 224 |
# endif |
| 225 |
if (style == R_SB_NEXT) |
| 226 |
width = SB_WIDTH_NEXT; |
| 227 |
else if (style == R_SB_XTERM) |
| 228 |
width = SB_WIDTH_XTERM; |
| 229 |
else if (style == R_SB_PLAIN) |
| 230 |
width = SB_WIDTH_PLAIN; |
| 231 |
else /* if (style == R_SB_RXVT) */ |
| 232 |
width = SB_WIDTH_RXVT; |
| 233 |
|
| 234 |
if (style != R_SB_NEXT) /* dishonour request - for now */ |
| 235 |
if (thickness && (i = atoi (thickness)) >= SB_WIDTH_MINIMUM) |
| 236 |
width = min (i, SB_WIDTH_MAXIMUM); |
| 237 |
|
| 238 |
# ifdef RXVT_SCROLLBAR |
| 239 |
if (! term->option (Opt_scrollBar_floating) && style == R_SB_RXVT) |
| 240 |
shadow = SHADOW_WIDTH; |
| 241 |
# endif |
| 242 |
|
| 243 |
this->style = style; |
| 244 |
this->width = width; |
| 245 |
|
| 246 |
/* align = R_SB_ALIGN_CENTRE; */ |
| 247 |
if (scrollalign) |
| 248 |
{ |
| 249 |
if (strncasecmp (scrollalign, "top", 3) == 0) |
| 250 |
align = R_SB_ALIGN_TOP; |
| 251 |
else if (strncasecmp (scrollalign, "bottom", 6) == 0) |
| 252 |
align = R_SB_ALIGN_BOTTOM; |
| 253 |
} |
| 254 |
last_bot = last_state = -1; |
| 255 |
/* cursor scrollBar: Black-on-White */ |
| 256 |
leftptr_cursor = XCreateFontCursor (term->dpy, XC_left_ptr); |
| 257 |
} |
| 258 |
|
| 259 |
/*----------------------- end-of-file (C source) -----------------------*/ |
| 260 |
|
