1 /****************************************************************************
2 * Copyright (c) 2002-2005,2006 Free Software Foundation, Inc. *
4 * Permission is hereby granted, free of charge, to any person obtaining a *
5 * copy of this software and associated documentation files (the *
6 * "Software"), to deal in the Software without restriction, including *
7 * without limitation the rights to use, copy, modify, merge, publish, *
8 * distribute, distribute with modifications, sublicense, and/or sell *
9 * copies of the Software, and to permit persons to whom the Software is *
10 * furnished to do so, subject to the following conditions: *
12 * The above copyright notice and this permission notice shall be included *
13 * in all copies or substantial portions of the Software. *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
23 * Except as contained in this notice, the name(s) of the above copyright *
24 * holders shall not be used in advertising or otherwise to promote the *
25 * sale, use or other dealings in this Software without prior written *
27 ****************************************************************************/
29 /****************************************************************************
30 * Author: Thomas E. Dickey *
31 ****************************************************************************/
33 #include <curses.priv.h>
36 MODULE_ID("$Id: lib_vid_attr.c,v 1.4 2006/11/26 00:26:00 tom Exp $")
38 #define doPut(mode) TPUTS_TRACE(#mode); tputs(mode, 1, outc)
40 #define TurnOn(mask,mode) \
41 if ((turn_on & mask) && mode) { doPut(mode); }
43 #define TurnOff(mask,mode) \
44 if ((turn_off & mask) && mode) { doPut(mode); turn_off &= ~mask; }
46 /* if there is no current screen, assume we *can* do color */
47 #define SetColorsIf(why, old_attr, old_pair) \
48 if (can_color && (why)) { \
49 TR(TRACE_ATTRS, ("old pair = %d -- new pair = %d", old_pair, pair)); \
50 if ((pair != old_pair) \
51 || (fix_pair0 && (pair == 0)) \
52 || (reverse ^ ((old_attr & A_REVERSE) != 0))) { \
53 _nc_do_color(old_pair, pair, reverse, outc); \
57 #define set_color(mode, pair) mode &= ALL_BUT_COLOR; mode |= COLOR_PAIR(pair)
60 vid_puts(attr_t newmode, short pair, void *opts GCC_UNUSED, int (*outc) (int))
62 #if NCURSES_EXT_COLORS
63 static attr_t previous_attr = A_NORMAL;
64 static int previous_pair = 0;
66 attr_t turn_on, turn_off;
68 bool can_color = (SP == 0 || SP->_coloron);
70 bool fix_pair0 = (SP != 0 && SP->_coloron && !SP->_default_color);
72 #define fix_pair0 FALSE
75 T((T_CALLED("vid_puts(%s,%d)"), _traceattr(newmode), pair));
77 /* this allows us to go on whether or not newterm() has been called */
79 previous_attr = AttrOf(SCREEN_ATTRS(SP));
80 previous_pair = GetPair(SCREEN_ATTRS(SP));
83 TR(TRACE_ATTRS, ("previous attribute was %s, %d",
84 _traceattr(previous_attr), previous_pair));
88 && (magic_cookie_glitch > 0))
89 newmode &= ~(SP->_xmc_suppress);
93 * If we have a terminal that cannot combine color with video
94 * attributes, use the colors in preference.
98 && (no_color_video > 0)) {
100 * If we had chosen the A_xxx definitions to correspond to the
101 * no_color_video mask, we could simply shift it up and mask off the
102 * attributes. But we did not (actually copied Solaris' definitions).
103 * However, this is still simpler/faster than a lookup table.
105 * The 63 corresponds to A_STANDOUT, A_UNDERLINE, A_REVERSE, A_BLINK,
106 * A_DIM, A_BOLD which are 1:1 with no_color_video. The bits that
107 * correspond to A_INVIS, A_PROTECT (192) must be shifted up 1 and
108 * A_ALTCHARSET (256) down 2 to line up. We use the NCURSES_BITS
109 * macro so this will work properly for the wide-character layout.
111 unsigned value = no_color_video;
112 attr_t mask = NCURSES_BITS((value & 63)
113 | ((value & 192) << 1)
114 | ((value & 256) >> 2), 8);
116 if ((mask & A_REVERSE) != 0
117 && (newmode & A_REVERSE) != 0) {
124 if (newmode == previous_attr
125 && pair == previous_pair)
129 newmode &= ~A_REVERSE;
132 turn_off = (~newmode & previous_attr) & ALL_BUT_COLOR;
133 turn_on = (newmode & ~previous_attr) & ALL_BUT_COLOR;
135 SetColorsIf(((pair == 0) && !fix_pair0), previous_attr, previous_pair);
137 if (newmode == A_NORMAL) {
138 if ((previous_attr & A_ALTCHARSET) && exit_alt_charset_mode) {
139 doPut(exit_alt_charset_mode);
140 previous_attr &= ~A_ALTCHARSET;
143 if (exit_attribute_mode) {
144 doPut(exit_attribute_mode);
146 if (!SP || SP->_use_rmul) {
147 TurnOff(A_UNDERLINE, exit_underline_mode);
149 if (!SP || SP->_use_rmso) {
150 TurnOff(A_STANDOUT, exit_standout_mode);
153 previous_attr &= ALL_BUT_COLOR;
157 SetColorsIf((pair != 0) || fix_pair0, previous_attr, previous_pair);
158 } else if (set_attributes) {
159 if (turn_on || turn_off) {
160 TPUTS_TRACE("set_attributes");
161 tputs(TPARM_9(set_attributes,
162 (newmode & A_STANDOUT) != 0,
163 (newmode & A_UNDERLINE) != 0,
164 (newmode & A_REVERSE) != 0,
165 (newmode & A_BLINK) != 0,
166 (newmode & A_DIM) != 0,
167 (newmode & A_BOLD) != 0,
168 (newmode & A_INVIS) != 0,
169 (newmode & A_PROTECT) != 0,
170 (newmode & A_ALTCHARSET) != 0), 1, outc);
171 previous_attr &= ALL_BUT_COLOR;
174 SetColorsIf((pair != 0) || fix_pair0, previous_attr, previous_pair);
177 TR(TRACE_ATTRS, ("turning %s off", _traceattr(turn_off)));
179 TurnOff(A_ALTCHARSET, exit_alt_charset_mode);
181 if (!SP || SP->_use_rmul) {
182 TurnOff(A_UNDERLINE, exit_underline_mode);
185 if (!SP || SP->_use_rmso) {
186 TurnOff(A_STANDOUT, exit_standout_mode);
189 if (turn_off && exit_attribute_mode) {
190 doPut(exit_attribute_mode);
191 turn_on |= (newmode & ALL_BUT_COLOR);
192 previous_attr &= ALL_BUT_COLOR;
195 SetColorsIf((pair != 0) || fix_pair0, previous_attr, previous_pair);
197 TR(TRACE_ATTRS, ("turning %s on", _traceattr(turn_on)));
199 TurnOn(A_ALTCHARSET, enter_alt_charset_mode);
200 TurnOn(A_BLINK, enter_blink_mode);
201 TurnOn(A_BOLD, enter_bold_mode);
202 TurnOn(A_DIM, enter_dim_mode);
203 TurnOn(A_REVERSE, enter_reverse_mode);
204 TurnOn(A_STANDOUT, enter_standout_mode);
205 TurnOn(A_PROTECT, enter_protected_mode);
206 TurnOn(A_INVIS, enter_secure_mode);
207 TurnOn(A_UNDERLINE, enter_underline_mode);
208 #if USE_WIDEC_SUPPORT
209 TurnOn(A_HORIZONTAL, enter_horizontal_hl_mode);
210 TurnOn(A_LEFT, enter_left_hl_mode);
211 TurnOn(A_LOW, enter_low_hl_mode);
212 TurnOn(A_RIGHT, enter_right_hl_mode);
213 TurnOn(A_TOP, enter_top_hl_mode);
214 TurnOn(A_VERTICAL, enter_vertical_hl_mode);
221 newmode |= A_REVERSE;
224 SetAttr(SCREEN_ATTRS(SP), newmode);
225 SetPair(SCREEN_ATTRS(SP), pair);
227 previous_attr = newmode;
228 previous_pair = pair;
233 T((T_CALLED("vid_puts(%s,%d)"), _traceattr(newmode), pair));
234 set_color(newmode, pair);
235 returnCode(vidputs(newmode, outc));
241 vid_attr(attr_t newmode, short pair, void *opts)
243 T((T_CALLED("vid_attr(%s,%d)"), _traceattr(newmode), pair));
244 returnCode(vid_puts(newmode, pair, opts, _nc_outch));
248 * This implementation uses the same mask values for A_xxx and WA_xxx, so
249 * we can use termattrs() for part of the logic.
251 NCURSES_EXPORT(attr_t)
256 T((T_CALLED("term_attrs()")));
259 /* these are only supported for wide-character mode */
260 if (enter_horizontal_hl_mode)
261 attrs |= WA_HORIZONTAL;
262 if (enter_left_hl_mode)
264 if (enter_low_hl_mode)
266 if (enter_right_hl_mode)
268 if (enter_top_hl_mode)
270 if (enter_vertical_hl_mode)
271 attrs |= WA_VERTICAL;