| 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 <schmorp@schmorp.de> |
| 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 3 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 |
void |
| 35 |
scrollBar_t::map (int map) |
| 36 |
{ |
| 37 |
if (map) |
| 38 |
{ |
| 39 |
state = SB_STATE_IDLE; |
| 40 |
|
| 41 |
if (!win) |
| 42 |
resize (); |
| 43 |
else |
| 44 |
XMapWindow (term->dpy, win); |
| 45 |
} |
| 46 |
else |
| 47 |
{ |
| 48 |
state = SB_STATE_OFF; |
| 49 |
|
| 50 |
if (win) |
| 51 |
XUnmapWindow (term->dpy, win); |
| 52 |
} |
| 53 |
} |
| 54 |
|
| 55 |
void |
| 56 |
scrollBar_t::resize () |
| 57 |
{ |
| 58 |
int delayed_init = 0; |
| 59 |
int window_sb_x = 0; |
| 60 |
|
| 61 |
if (term->option (Opt_scrollBar_right)) |
| 62 |
window_sb_x = term->szHint.width - total_width (); |
| 63 |
|
| 64 |
update_data (); |
| 65 |
|
| 66 |
if (!win) |
| 67 |
{ |
| 68 |
/* create the scrollbar window */ |
| 69 |
win = XCreateSimpleWindow (term->dpy, |
| 70 |
term->parent, |
| 71 |
window_sb_x, 0, |
| 72 |
total_width (), |
| 73 |
term->szHint.height, |
| 74 |
0, |
| 75 |
term->pix_colors[Color_fg], |
| 76 |
term->pix_colors[color ()]); |
| 77 |
XDefineCursor (term->dpy, win, leftptr_cursor); |
| 78 |
|
| 79 |
XSelectInput (term->dpy, win, |
| 80 |
ExposureMask | ButtonPressMask | ButtonReleaseMask |
| 81 |
| Button1MotionMask | Button2MotionMask |
| 82 |
| Button3MotionMask); |
| 83 |
term->scrollbar_ev.start (term->display, win); |
| 84 |
|
| 85 |
delayed_init = 1; |
| 86 |
} |
| 87 |
else |
| 88 |
XMoveResizeWindow (term->dpy, win, |
| 89 |
window_sb_x, 0, |
| 90 |
total_width (), term->szHint.height); |
| 91 |
|
| 92 |
show (1); |
| 93 |
|
| 94 |
if (delayed_init) |
| 95 |
XMapWindow (term->dpy, win); |
| 96 |
} |
| 97 |
|
| 98 |
/* |
| 99 |
* Update current scrollbar view w.r.t. slider heights, etc. |
| 100 |
*/ |
| 101 |
int |
| 102 |
scrollBar_t::show (int refresh) |
| 103 |
{ |
| 104 |
int ret; |
| 105 |
|
| 106 |
if (!state) |
| 107 |
return 0; |
| 108 |
|
| 109 |
if (refresh) |
| 110 |
{ |
| 111 |
int sb_top = term->view_start - term->top_row; |
| 112 |
int sb_bot = sb_top + (term->nrow - 1); |
| 113 |
int sb_len = max (term->nrow - 1 - term->top_row, 1); |
| 114 |
int n = min (min_height (), size ()); |
| 115 |
|
| 116 |
top = beg + (sb_top * (size () - n)) / sb_len; |
| 117 |
bot = top + ecb_div_ru ((sb_bot - sb_top) * (size () - n), sb_len) + n; |
| 118 |
/* no change */ |
| 119 |
if (top == last_top |
| 120 |
&& bot == last_bot |
| 121 |
&& (state == last_state |
| 122 |
|| !(state == SB_STATE_UP || state == SB_STATE_DOWN))) |
| 123 |
return 0; |
| 124 |
} |
| 125 |
|
| 126 |
ret = (this->*update) (refresh); |
| 127 |
|
| 128 |
last_top = top; |
| 129 |
last_bot = bot; |
| 130 |
last_state = state; |
| 131 |
|
| 132 |
return ret; |
| 133 |
} |
| 134 |
|
| 135 |
void |
| 136 |
scrollBar_t::setup (rxvt_term *term) |
| 137 |
{ |
| 138 |
int i; |
| 139 |
const char *scrollalign, *scrollstyle, *thickness; |
| 140 |
|
| 141 |
this->term = term; |
| 142 |
scrollalign = term->rs[Rs_scrollBar_align]; |
| 143 |
scrollstyle = term->rs[Rs_scrollstyle]; |
| 144 |
thickness = term->rs[Rs_scrollBar_thickness]; |
| 145 |
|
| 146 |
# if defined(RXVT_SCROLLBAR) |
| 147 |
style = SB_STYLE_RXVT; |
| 148 |
# elif defined(XTERM_SCROLLBAR) |
| 149 |
style = SB_STYLE_XTERM; |
| 150 |
# elif defined(NEXT_SCROLLBAR) |
| 151 |
style = SB_STYLE_NEXT; |
| 152 |
# elif defined(PLAIN_SCROLLBAR) |
| 153 |
style = SB_STYLE_PLAIN; |
| 154 |
#else |
| 155 |
style = SB_STYLE_RXVT; |
| 156 |
# endif |
| 157 |
|
| 158 |
# if (defined(NEXT_SCROLLBAR) || defined(XTERM_SCROLLBAR) || defined(PLAIN_SCROLLBAR)) |
| 159 |
if (scrollstyle) |
| 160 |
{ |
| 161 |
# ifdef NEXT_SCROLLBAR |
| 162 |
if (strncasecmp (scrollstyle, "next", 4) == 0) |
| 163 |
style = SB_STYLE_NEXT; |
| 164 |
# endif |
| 165 |
# ifdef XTERM_SCROLLBAR |
| 166 |
if (strncasecmp (scrollstyle, "xterm", 5) == 0) |
| 167 |
style = SB_STYLE_XTERM; |
| 168 |
# endif |
| 169 |
# ifdef PLAIN_SCROLLBAR |
| 170 |
if (strncasecmp (scrollstyle, "plain", 5) == 0) |
| 171 |
style = SB_STYLE_PLAIN; |
| 172 |
# endif |
| 173 |
|
| 174 |
} |
| 175 |
# endif |
| 176 |
if (style == SB_STYLE_NEXT) |
| 177 |
width = SB_WIDTH_NEXT; |
| 178 |
else if (style == SB_STYLE_XTERM) |
| 179 |
width = SB_WIDTH_XTERM; |
| 180 |
else if (style == SB_STYLE_PLAIN) |
| 181 |
width = SB_WIDTH_PLAIN; |
| 182 |
else /* if (style == SB_STYLE_RXVT) */ |
| 183 |
width = SB_WIDTH_RXVT; |
| 184 |
|
| 185 |
if (style != SB_STYLE_NEXT) /* dishonour request - for now */ |
| 186 |
if (thickness && (i = atoi (thickness)) >= SB_WIDTH_MINIMUM) |
| 187 |
width = min (i, SB_WIDTH_MAXIMUM); |
| 188 |
|
| 189 |
# ifdef RXVT_SCROLLBAR |
| 190 |
if (! term->option (Opt_scrollBar_floating) && style == SB_STYLE_RXVT) |
| 191 |
shadow = SHADOW_WIDTH; |
| 192 |
# endif |
| 193 |
|
| 194 |
/* align = SB_ALIGN_CENTRE; */ |
| 195 |
if (scrollalign) |
| 196 |
{ |
| 197 |
if (strncasecmp (scrollalign, "top", 3) == 0) |
| 198 |
align = SB_ALIGN_TOP; |
| 199 |
else if (strncasecmp (scrollalign, "bottom", 6) == 0) |
| 200 |
align = SB_ALIGN_BOTTOM; |
| 201 |
} |
| 202 |
last_state = SB_STATE_OFF; |
| 203 |
/* cursor scrollBar: Black-on-White */ |
| 204 |
leftptr_cursor = XCreateFontCursor (term->dpy, XC_left_ptr); |
| 205 |
} |
| 206 |
|
| 207 |
void |
| 208 |
scrollBar_t::destroy () |
| 209 |
{ |
| 210 |
#ifdef XTERM_SCROLLBAR |
| 211 |
if (xscrollbarGC) XFreeGC (term->dpy, xscrollbarGC); |
| 212 |
if (ShadowGC) XFreeGC (term->dpy, ShadowGC); |
| 213 |
#endif |
| 214 |
#ifdef PLAIN_SCROLLBAR |
| 215 |
if (pscrollbarGC) XFreeGC (term->dpy, pscrollbarGC); |
| 216 |
#endif |
| 217 |
#ifdef NEXT_SCROLLBAR |
| 218 |
if (blackGC) XFreeGC (term->dpy, blackGC); |
| 219 |
if (whiteGC) XFreeGC (term->dpy, whiteGC); |
| 220 |
if (grayGC) XFreeGC (term->dpy, grayGC); |
| 221 |
if (darkGC) XFreeGC (term->dpy, darkGC); |
| 222 |
if (stippleGC) XFreeGC (term->dpy, stippleGC); |
| 223 |
if (dimple) XFreePixmap (term->dpy, dimple); |
| 224 |
if (upArrow) XFreePixmap (term->dpy, upArrow); |
| 225 |
if (downArrow) XFreePixmap (term->dpy, downArrow); |
| 226 |
if (upArrowHi) XFreePixmap (term->dpy, upArrowHi); |
| 227 |
if (downArrowHi) XFreePixmap (term->dpy, downArrowHi); |
| 228 |
#endif |
| 229 |
#ifdef RXVT_SCROLLBAR |
| 230 |
if (topShadowGC) XFreeGC (term->dpy, topShadowGC); |
| 231 |
if (botShadowGC) XFreeGC (term->dpy, botShadowGC); |
| 232 |
if (scrollbarGC) XFreeGC (term->dpy, scrollbarGC); |
| 233 |
#endif |
| 234 |
} |
| 235 |
|
| 236 |
int |
| 237 |
scrollBar_t::color () |
| 238 |
{ |
| 239 |
#ifdef RXVT_SCROLLBAR |
| 240 |
if (style == SB_STYLE_RXVT && shadow) |
| 241 |
return Color_trough; |
| 242 |
else |
| 243 |
#endif |
| 244 |
return Color_border; |
| 245 |
} |
| 246 |
|
| 247 |
void |
| 248 |
scrollBar_t::update_data () |
| 249 |
{ |
| 250 |
#if defined(PLAIN_SCROLLBAR) |
| 251 |
if (style == SB_STYLE_PLAIN) |
| 252 |
{ |
| 253 |
beg = 0; |
| 254 |
end = term->szHint.height; |
| 255 |
update = &scrollBar_t::show_plain; |
| 256 |
} |
| 257 |
#endif |
| 258 |
#if defined(XTERM_SCROLLBAR) |
| 259 |
if (style == SB_STYLE_XTERM) |
| 260 |
{ |
| 261 |
beg = 0; |
| 262 |
end = term->szHint.height; |
| 263 |
update = &scrollBar_t::show_xterm; |
| 264 |
} |
| 265 |
#endif |
| 266 |
#if defined(NEXT_SCROLLBAR) |
| 267 |
if (style == SB_STYLE_NEXT) |
| 268 |
{ |
| 269 |
beg = 0; |
| 270 |
end = term->szHint.height - (SB_BUTTON_TOTAL_HEIGHT + SB_PADDING); |
| 271 |
update = &scrollBar_t::show_next; |
| 272 |
} |
| 273 |
#endif |
| 274 |
#if defined(RXVT_SCROLLBAR) |
| 275 |
if (style == SB_STYLE_RXVT) |
| 276 |
{ |
| 277 |
beg = (width + 1) + shadow; |
| 278 |
end = term->szHint.height - beg; |
| 279 |
update = &scrollBar_t::show_rxvt; |
| 280 |
} |
| 281 |
#endif |
| 282 |
} |
| 283 |
|
| 284 |
/*----------------------- end-of-file (C source) -----------------------*/ |
| 285 |
|
