1 /****************************************************************************
2 * Copyright (c) 2002-2017,2018 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 #define CUR SP_TERMTYPE
39 MODULE_ID("$Id: lib_vid_attr.c,v 1.26 2018/03/03 22:03:18 tom Exp $")
43 NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx mode, 1, outc)
45 #define TurnOn(mask, mode) \
46 if ((turn_on & mask) && mode) { \
48 NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx mode, 1, outc); \
51 #define TurnOff(mask, mode) \
52 if ((turn_off & mask) && mode) { \
54 NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx mode, 1, outc); \
58 /* if there is no current screen, assume we *can* do color */
59 #define SetColorsIf(why, old_attr, old_pair) \
60 if (can_color && (why)) { \
61 TR(TRACE_ATTRS, ("old pair = %d -- new pair = %d", old_pair, color_pair)); \
62 if ((color_pair != old_pair) \
63 || (fix_pair0 && (color_pair == 0)) \
64 || (reverse ^ ((old_attr & A_REVERSE) != 0))) { \
65 NCURSES_SP_NAME(_nc_do_color) (NCURSES_SP_ARGx \
66 old_pair, color_pair, \
71 #define set_color(mode, pair) \
72 mode &= ALL_BUT_COLOR; \
73 mode |= (attr_t) ColorPair(pair)
76 NCURSES_SP_NAME(vid_puts) (NCURSES_SP_DCLx
78 NCURSES_PAIRS_T pair_arg,
79 void *opts OPTIONAL_PAIR,
82 int color_pair = pair_arg;
83 #if NCURSES_EXT_COLORS
84 static attr_t previous_attr = A_NORMAL;
85 static int previous_pair = 0;
87 attr_t turn_on, turn_off;
89 bool can_color = (SP_PARM == 0 || SP_PARM->_coloron);
91 bool fix_pair0 = (SP_PARM != 0 && SP_PARM->_coloron && !SP_PARM->_default_color);
93 #define fix_pair0 FALSE
96 if (!IsValidTIScreen(SP_PARM))
99 newmode &= A_ATTRIBUTES;
100 set_extended_pair(opts, color_pair);
101 T((T_CALLED("vid_puts(%s,%d)"), _traceattr(newmode), color_pair));
103 /* this allows us to go on whether or not newterm() has been called */
105 previous_attr = AttrOf(SCREEN_ATTRS(SP_PARM));
106 previous_pair = GetPair(SCREEN_ATTRS(SP_PARM));
109 TR(TRACE_ATTRS, ("previous attribute was %s, %d",
110 _traceattr(previous_attr), previous_pair));
114 && (magic_cookie_glitch > 0))
115 newmode &= ~(SP_PARM->_xmc_suppress);
119 * If we have a terminal that cannot combine color with video
120 * attributes, use the colors in preference.
124 && (no_color_video > 0)) {
126 * If we had chosen the A_xxx definitions to correspond to the
127 * no_color_video mask, we could simply shift it up and mask off the
128 * attributes. But we did not (actually copied Solaris' definitions).
129 * However, this is still simpler/faster than a lookup table.
131 * The 63 corresponds to A_STANDOUT, A_UNDERLINE, A_REVERSE, A_BLINK,
132 * A_DIM, A_BOLD which are 1:1 with no_color_video. The bits that
133 * correspond to A_INVIS, A_PROTECT (192) must be shifted up 1 and
134 * A_ALTCHARSET (256) down 2 to line up. We use the NCURSES_BITS
135 * macro so this will work properly for the wide-character layout.
137 unsigned value = (unsigned) no_color_video;
138 attr_t mask = NCURSES_BITS((value & 63)
139 | ((value & 192) << 1)
140 | ((value & 256) >> 2), 8);
142 if ((mask & A_REVERSE) != 0
143 && (newmode & A_REVERSE) != 0) {
150 if (newmode == previous_attr
151 && color_pair == previous_pair)
155 newmode &= ~A_REVERSE;
158 turn_off = (~newmode & previous_attr) & ALL_BUT_COLOR;
159 turn_on = (newmode & ~(previous_attr & TPARM_ATTR)) & ALL_BUT_COLOR;
161 SetColorsIf(((color_pair == 0) && !fix_pair0), previous_attr, previous_pair);
163 if (newmode == A_NORMAL) {
164 if ((previous_attr & A_ALTCHARSET) && exit_alt_charset_mode) {
165 doPut(exit_alt_charset_mode);
166 previous_attr &= ~A_ALTCHARSET;
169 if (exit_attribute_mode) {
170 doPut(exit_attribute_mode);
172 if (!SP_PARM || SP_PARM->_use_rmul) {
173 TurnOff(A_UNDERLINE, exit_underline_mode);
175 if (!SP_PARM || SP_PARM->_use_rmso) {
176 TurnOff(A_STANDOUT, exit_standout_mode);
179 if (!SP_PARM || SP_PARM->_use_ritm) {
180 TurnOff(A_ITALIC, exit_italics_mode);
184 previous_attr &= ALL_BUT_COLOR;
188 SetColorsIf((color_pair != 0) || fix_pair0, previous_attr, previous_pair);
189 } else if (set_attributes) {
190 if (turn_on || turn_off) {
191 TPUTS_TRACE("set_attributes");
192 NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx
193 TPARM_9(set_attributes,
194 (newmode & A_STANDOUT) != 0,
195 (newmode & A_UNDERLINE) != 0,
196 (newmode & A_REVERSE) != 0,
197 (newmode & A_BLINK) != 0,
198 (newmode & A_DIM) != 0,
199 (newmode & A_BOLD) != 0,
200 (newmode & A_INVIS) != 0,
201 (newmode & A_PROTECT) != 0,
202 (newmode & A_ALTCHARSET) != 0),
204 previous_attr &= ALL_BUT_COLOR;
208 if (!SP_PARM || SP_PARM->_use_ritm) {
209 if (turn_on & A_ITALIC) {
210 TurnOn(A_ITALIC, enter_italics_mode);
211 } else if (turn_off & A_ITALIC) {
212 TurnOff(A_ITALIC, exit_italics_mode);
216 SetColorsIf((color_pair != 0) || fix_pair0, previous_attr, previous_pair);
219 TR(TRACE_ATTRS, ("turning %s off", _traceattr(turn_off)));
221 TurnOff(A_ALTCHARSET, exit_alt_charset_mode);
223 if (!SP_PARM || SP_PARM->_use_rmul) {
224 TurnOff(A_UNDERLINE, exit_underline_mode);
227 if (!SP_PARM || SP_PARM->_use_rmso) {
228 TurnOff(A_STANDOUT, exit_standout_mode);
231 if (!SP_PARM || SP_PARM->_use_ritm) {
232 TurnOff(A_ITALIC, exit_italics_mode);
235 if (turn_off && exit_attribute_mode) {
236 doPut(exit_attribute_mode);
237 turn_on |= (newmode & ALL_BUT_COLOR);
238 previous_attr &= ALL_BUT_COLOR;
241 SetColorsIf((color_pair != 0) || fix_pair0, previous_attr, previous_pair);
243 TR(TRACE_ATTRS, ("turning %s on", _traceattr(turn_on)));
245 TurnOn(A_ALTCHARSET, enter_alt_charset_mode);
246 TurnOn(A_BLINK, enter_blink_mode);
247 TurnOn(A_BOLD, enter_bold_mode);
248 TurnOn(A_DIM, enter_dim_mode);
249 TurnOn(A_REVERSE, enter_reverse_mode);
250 TurnOn(A_STANDOUT, enter_standout_mode);
251 TurnOn(A_PROTECT, enter_protected_mode);
252 TurnOn(A_INVIS, enter_secure_mode);
253 TurnOn(A_UNDERLINE, enter_underline_mode);
255 TurnOn(A_ITALIC, enter_italics_mode);
257 #if USE_WIDEC_SUPPORT
258 TurnOn(A_HORIZONTAL, enter_horizontal_hl_mode);
259 TurnOn(A_LEFT, enter_left_hl_mode);
260 TurnOn(A_LOW, enter_low_hl_mode);
261 TurnOn(A_RIGHT, enter_right_hl_mode);
262 TurnOn(A_TOP, enter_top_hl_mode);
263 TurnOn(A_VERTICAL, enter_vertical_hl_mode);
270 newmode |= A_REVERSE;
273 SetAttr(SCREEN_ATTRS(SP_PARM), newmode);
274 SetPair(SCREEN_ATTRS(SP_PARM), color_pair);
276 previous_attr = newmode;
277 previous_pair = color_pair;
282 T((T_CALLED("vid_puts(%s,%d)"), _traceattr(newmode), color_pair));
284 set_color(newmode, color_pair);
285 returnCode(NCURSES_SP_NAME(vidputs) (NCURSES_SP_ARGx newmode, outc));
291 vid_puts(attr_t newmode,
292 NCURSES_PAIRS_T pair_arg,
293 void *opts GCC_UNUSED,
296 SetSafeOutcWrapper(outc);
297 return NCURSES_SP_NAME(vid_puts) (CURRENT_SCREEN,
307 NCURSES_SP_NAME(vid_attr) (NCURSES_SP_DCLx
309 NCURSES_PAIRS_T pair_arg,
312 T((T_CALLED("vid_attr(%s,%d)"), _traceattr(newmode), (int) pair_arg));
313 returnCode(NCURSES_SP_NAME(vid_puts) (NCURSES_SP_ARGx
317 NCURSES_SP_NAME(_nc_putchar)));
322 vid_attr(attr_t newmode, NCURSES_PAIRS_T pair_arg, void *opts)
324 return NCURSES_SP_NAME(vid_attr) (CURRENT_SCREEN, newmode, pair_arg, opts);
329 * This implementation uses the same mask values for A_xxx and WA_xxx, so
330 * we can use termattrs() for part of the logic.
332 NCURSES_EXPORT(attr_t)
333 NCURSES_SP_NAME(term_attrs) (NCURSES_SP_DCL0)
337 T((T_CALLED("term_attrs()")));
339 attrs = NCURSES_SP_NAME(termattrs) (NCURSES_SP_ARG);
341 /* these are only supported for wide-character mode */
342 if (enter_horizontal_hl_mode)
343 attrs |= WA_HORIZONTAL;
344 if (enter_left_hl_mode)
346 if (enter_low_hl_mode)
348 if (enter_right_hl_mode)
350 if (enter_top_hl_mode)
352 if (enter_vertical_hl_mode)
353 attrs |= WA_VERTICAL;
360 NCURSES_EXPORT(attr_t)
363 return NCURSES_SP_NAME(term_attrs) (CURRENT_SCREEN);