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 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 |
void |
35 |
scrollBar_t::map (int map) |
36 |
{ |
37 |
if (map) |
38 |
{ |
39 |
state = STATE_IDLE; |
40 |
|
41 |
if (!win) |
42 |
resize (); |
43 |
else |
44 |
XMapWindow (term->dpy, win); |
45 |
} |
46 |
else |
47 |
{ |
48 |
state = 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_border]); |
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 |
|
115 |
top = beg + (sb_top * size ()) / sb_len; |
116 |
bot = top + ecb_div_ru ((sb_bot - sb_top) * size (), sb_len) + min_height (); |
117 |
/* no change */ |
118 |
if (top == last_top |
119 |
&& bot == last_bot |
120 |
&& (state == last_state |
121 |
|| !(state == STATE_UP || state == STATE_DOWN))) |
122 |
return 0; |
123 |
} |
124 |
|
125 |
ret = (this->*update) (refresh); |
126 |
|
127 |
last_top = top; |
128 |
last_bot = bot; |
129 |
last_state = state; |
130 |
|
131 |
return ret; |
132 |
} |
133 |
|
134 |
void |
135 |
scrollBar_t::setup (rxvt_term *term) |
136 |
{ |
137 |
int i; |
138 |
const char *scrollalign, *scrollstyle, *thickness; |
139 |
|
140 |
this->term = term; |
141 |
scrollalign = term->rs[Rs_scrollBar_align]; |
142 |
scrollstyle = term->rs[Rs_scrollstyle]; |
143 |
thickness = term->rs[Rs_scrollBar_thickness]; |
144 |
|
145 |
# if defined(RXVT_SCROLLBAR) |
146 |
style = R_SB_RXVT; |
147 |
# elif defined(XTERM_SCROLLBAR) |
148 |
style = R_SB_XTERM; |
149 |
# elif defined(NEXT_SCROLLBAR) |
150 |
style = R_SB_NEXT; |
151 |
# elif defined(PLAIN_SCROLLBAR) |
152 |
style = R_SB_PLAIN; |
153 |
#else |
154 |
style = R_SB_RXVT; |
155 |
# endif |
156 |
|
157 |
# if (defined(NEXT_SCROLLBAR) || defined(XTERM_SCROLLBAR) || defined(PLAIN_SCROLLBAR)) |
158 |
if (scrollstyle) |
159 |
{ |
160 |
# ifdef NEXT_SCROLLBAR |
161 |
if (strncasecmp (scrollstyle, "next", 4) == 0) |
162 |
style = R_SB_NEXT; |
163 |
# endif |
164 |
# ifdef XTERM_SCROLLBAR |
165 |
if (strncasecmp (scrollstyle, "xterm", 5) == 0) |
166 |
style = R_SB_XTERM; |
167 |
# endif |
168 |
# ifdef PLAIN_SCROLLBAR |
169 |
if (strncasecmp (scrollstyle, "plain", 5) == 0) |
170 |
style = R_SB_PLAIN; |
171 |
# endif |
172 |
|
173 |
} |
174 |
# endif |
175 |
if (style == R_SB_NEXT) |
176 |
width = SB_WIDTH_NEXT; |
177 |
else if (style == R_SB_XTERM) |
178 |
width = SB_WIDTH_XTERM; |
179 |
else if (style == R_SB_PLAIN) |
180 |
width = SB_WIDTH_PLAIN; |
181 |
else /* if (style == R_SB_RXVT) */ |
182 |
width = SB_WIDTH_RXVT; |
183 |
|
184 |
if (style != R_SB_NEXT) /* dishonour request - for now */ |
185 |
if (thickness && (i = atoi (thickness)) >= SB_WIDTH_MINIMUM) |
186 |
width = min (i, SB_WIDTH_MAXIMUM); |
187 |
|
188 |
# ifdef RXVT_SCROLLBAR |
189 |
if (! term->option (Opt_scrollBar_floating) && style == R_SB_RXVT) |
190 |
shadow = SHADOW_WIDTH; |
191 |
# endif |
192 |
|
193 |
/* align = R_SB_ALIGN_CENTRE; */ |
194 |
if (scrollalign) |
195 |
{ |
196 |
if (strncasecmp (scrollalign, "top", 3) == 0) |
197 |
align = R_SB_ALIGN_TOP; |
198 |
else if (strncasecmp (scrollalign, "bottom", 6) == 0) |
199 |
align = R_SB_ALIGN_BOTTOM; |
200 |
} |
201 |
last_state = STATE_OFF; |
202 |
/* cursor scrollBar: Black-on-White */ |
203 |
leftptr_cursor = XCreateFontCursor (term->dpy, XC_left_ptr); |
204 |
} |
205 |
|
206 |
void |
207 |
scrollBar_t::destroy () |
208 |
{ |
209 |
#ifdef XTERM_SCROLLBAR |
210 |
if (xscrollbarGC) XFreeGC (term->dpy, xscrollbarGC); |
211 |
if (ShadowGC) XFreeGC (term->dpy, ShadowGC); |
212 |
#endif |
213 |
#ifdef PLAIN_SCROLLBAR |
214 |
if (pscrollbarGC) XFreeGC (term->dpy, pscrollbarGC); |
215 |
#endif |
216 |
#ifdef NEXT_SCROLLBAR |
217 |
if (blackGC) XFreeGC (term->dpy, blackGC); |
218 |
if (whiteGC) XFreeGC (term->dpy, whiteGC); |
219 |
if (grayGC) XFreeGC (term->dpy, grayGC); |
220 |
if (darkGC) XFreeGC (term->dpy, darkGC); |
221 |
if (stippleGC) XFreeGC (term->dpy, stippleGC); |
222 |
if (dimple) XFreePixmap (term->dpy, dimple); |
223 |
if (upArrow) XFreePixmap (term->dpy, upArrow); |
224 |
if (downArrow) XFreePixmap (term->dpy, downArrow); |
225 |
if (upArrowHi) XFreePixmap (term->dpy, upArrowHi); |
226 |
if (downArrowHi) XFreePixmap (term->dpy, downArrowHi); |
227 |
#endif |
228 |
#ifdef RXVT_SCROLLBAR |
229 |
if (topShadowGC) XFreeGC (term->dpy, topShadowGC); |
230 |
if (botShadowGC) XFreeGC (term->dpy, botShadowGC); |
231 |
if (scrollbarGC) XFreeGC (term->dpy, scrollbarGC); |
232 |
#endif |
233 |
} |
234 |
|
235 |
void |
236 |
scrollBar_t::update_data () |
237 |
{ |
238 |
#if defined(PLAIN_SCROLLBAR) |
239 |
if (style == R_SB_PLAIN) |
240 |
{ |
241 |
beg = 0; |
242 |
end = term->szHint.height; |
243 |
update = &scrollBar_t::show_plain; |
244 |
} |
245 |
#endif |
246 |
#if defined(XTERM_SCROLLBAR) |
247 |
if (style == R_SB_XTERM) |
248 |
{ |
249 |
beg = 0; |
250 |
end = term->szHint.height; |
251 |
update = &scrollBar_t::show_xterm; |
252 |
} |
253 |
#endif |
254 |
#if defined(NEXT_SCROLLBAR) |
255 |
if (style == R_SB_NEXT) |
256 |
{ |
257 |
beg = 0; |
258 |
end = term->szHint.height - (SB_BUTTON_TOTAL_HEIGHT + SB_PADDING); |
259 |
update = &scrollBar_t::show_next; |
260 |
} |
261 |
#endif |
262 |
#if defined(RXVT_SCROLLBAR) |
263 |
if (style == R_SB_RXVT) |
264 |
{ |
265 |
beg = (width + 1) + shadow; |
266 |
end = term->szHint.height - beg - (2 * shadow); |
267 |
update = &scrollBar_t::show_rxvt; |
268 |
} |
269 |
#endif |
270 |
} |
271 |
|
272 |
/*----------------------- end-of-file (C source) -----------------------*/ |
273 |
|