4 Copyright (C) 1999-2000 Timo Sirainen
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
27 #include "gui-readline.h"
28 #include "mainwindows.h"
30 #ifdef HAVE_SYS_IOCTL_H
31 #include <sys/ioctl.h>
36 #define COLOR_PAIRS 64
39 #define MIN_SCREEN_WIDTH 20
41 static int scrx, scry;
42 static int use_colors;
43 static int freeze_refresh;
46 static int init_screen_int(void);
47 static void deinit_screen_int(void);
50 static void sig_winch(int p)
56 void screen_check_resizes(void)
58 #if defined (TIOCGWINSZ) && defined (HAVE_CURSES_RESIZETERM)
61 /* Get new window size */
62 if (ioctl(0, TIOCGWINSZ, &ws) < 0)
65 if (ws.ws_row == LINES && ws.ws_col == COLS) {
66 /* Same size, abort. */
70 if (ws.ws_col < MIN_SCREEN_WIDTH)
71 ws.ws_col = MIN_SCREEN_WIDTH;
73 /* Resize curses terminal */
74 resizeterm(ws.ws_row, ws.ws_col);
78 mainwindows_recreate();
81 mainwindows_resize(COLS, LINES);
85 static void read_signals(void)
89 SIGHUP, SIGINT, SIGQUIT, SIGTERM,
90 SIGALRM, SIGUSR1, SIGUSR2
93 "hup", "int", "quit", "term",
94 "alrm", "usr1", "usr2"
101 ignores = settings_get_str("ignore_signals");
103 sigemptyset (&act.sa_mask);
106 for (n = 0; n < sizeof(signals)/sizeof(signals[0]); n++) {
107 act.sa_handler = find_substr(ignores, signames[n]) ?
109 sigaction(signals[n], &act, NULL);
114 static void read_settings(void)
116 int old_colors = use_colors;
118 use_colors = settings_get_bool("colors");
120 if (use_colors && !has_colors())
123 if (use_colors != old_colors)
127 static int init_curses(void)
129 char ansi_tab[8] = { 0, 4, 2, 6, 1, 5, 3, 7 };
132 struct sigaction act;
138 if (COLS < MIN_SCREEN_WIDTH)
139 COLS = MIN_SCREEN_WIDTH;
142 sigemptyset (&act.sa_mask);
144 act.sa_handler = sig_winch;
145 sigaction(SIGWINCH, &act, NULL);
147 raw(); noecho(); idlok(stdscr, 1);
148 #ifdef HAVE_CURSES_IDCOK
151 intrflush(stdscr, FALSE); nodelay(stdscr, TRUE);
158 #ifdef HAVE_NCURSES_USE_DEFAULT_COLORS
159 /* this lets us to use the "default" background color for colors <= 7 so
160 background pixmaps etc. show up right */
161 use_default_colors();
163 for (num = 1; num < COLOR_PAIRS; num++)
164 init_pair(num, ansi_tab[num & 7], num <= 7 ? -1 : ansi_tab[num >> 3]);
166 init_pair(63, 0, -1); /* hm.. not THAT good idea, but probably more
167 people want dark grey than white on white.. */
169 for (num = 1; num < COLOR_PAIRS; num++)
170 init_pair(num, ansi_tab[num & 7], ansi_tab[num >> 3]);
178 static int init_screen_int(void)
180 use_colors = settings_get_bool("colors");
186 return init_curses();
189 static void deinit_screen_int(void)
194 /* Initialize screen, detect screen length */
195 int init_screen(void)
197 settings_add_bool("lookandfeel", "colors", TRUE);
198 settings_add_str("misc", "ignore_signals", "");
199 signal_add("setup changed", (SIGNAL_FUNC) read_settings);
201 return init_screen_int();
204 /* Deinitialize screen */
205 void deinit_screen(void)
208 signal_remove("setup changed", (SIGNAL_FUNC) read_settings);
211 void set_color(WINDOW *window, int col)
216 attr = (col & 0x70) ? A_REVERSE : 0;
217 else if (col & ATTR_COLOR8)
218 attr = (A_DIM | COLOR_PAIR(63));
219 else if ((col & 0x77) == 0)
222 attr = (COLOR_PAIR((col&7) + (col&0x70)/2));
224 if (col & 0x08) attr |= A_BOLD;
225 if (col & 0x80) attr |= A_BLINK;
227 if (col & ATTR_UNDERLINE) attr |= A_UNDERLINE;
228 if (col & ATTR_REVERSE) attr |= A_REVERSE;
230 wattrset(window, attr);
233 void set_bg(WINDOW *window, int col)
238 attr = (col & 0x70) ? A_REVERSE : 0;
241 (A_DIM | COLOR_PAIR(63)) :
242 (COLOR_PAIR((col&7) + (col&0x70)/2));
245 if (col & 0x08) attr |= A_BOLD;
246 if (col & 0x80) attr |= A_BLINK;
248 wbkgdset(window, ' ' | attr);
251 void move_cursor(int y, int x)
257 void screen_refresh_freeze(void)
262 void screen_refresh_thaw(void)
264 if (freeze_refresh > 0) {
266 if (freeze_refresh == 0) screen_refresh(NULL);
270 void screen_refresh(WINDOW *window)
273 wnoutrefresh(window);
274 if (freeze_refresh == 0) {
276 wnoutrefresh(stdscr);