1 /****************************************************************************
2 * Copyright (c) 2002-2007,2009 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 1.7 2009/05/02 23:30:44 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 NCURSES_SP_NAME(vid_puts)(NCURSES_SP_DCLx
63 void *opts GCC_UNUSED,
66 #if NCURSES_EXT_COLORS
67 static attr_t previous_attr = A_NORMAL;
68 static int previous_pair = 0;
70 attr_t turn_on, turn_off;
72 bool can_color = (SP_PARM == 0 || SP_PARM->_coloron);
74 bool fix_pair0 = (SP_PARM != 0 && SP_PARM->_coloron && !SP_PARM->_default_color);
76 #define fix_pair0 FALSE
79 newmode &= A_ATTRIBUTES;
80 T((T_CALLED("vid_puts(%s,%d)"), _traceattr(newmode), pair));
82 /* this allows us to go on whether or not newterm() has been called */
84 previous_attr = AttrOf(SCREEN_ATTRS(SP_PARM));
85 previous_pair = GetPair(SCREEN_ATTRS(SP_PARM));
88 TR(TRACE_ATTRS, ("previous attribute was %s, %d",
89 _traceattr(previous_attr), previous_pair));
93 && (magic_cookie_glitch > 0))
94 newmode &= ~(SP_PARM->_xmc_suppress);
98 * If we have a terminal that cannot combine color with video
99 * attributes, use the colors in preference.
103 && (no_color_video > 0)) {
105 * If we had chosen the A_xxx definitions to correspond to the
106 * no_color_video mask, we could simply shift it up and mask off the
107 * attributes. But we did not (actually copied Solaris' definitions).
108 * However, this is still simpler/faster than a lookup table.
110 * The 63 corresponds to A_STANDOUT, A_UNDERLINE, A_REVERSE, A_BLINK,
111 * A_DIM, A_BOLD which are 1:1 with no_color_video. The bits that
112 * correspond to A_INVIS, A_PROTECT (192) must be shifted up 1 and
113 * A_ALTCHARSET (256) down 2 to line up. We use the NCURSES_BITS
114 * macro so this will work properly for the wide-character layout.
116 unsigned value = no_color_video;
117 attr_t mask = NCURSES_BITS((value & 63)
118 | ((value & 192) << 1)
119 | ((value & 256) >> 2), 8);
121 if ((mask & A_REVERSE) != 0
122 && (newmode & A_REVERSE) != 0) {
129 if (newmode == previous_attr
130 && pair == previous_pair)
134 newmode &= ~A_REVERSE;
137 turn_off = (~newmode & previous_attr) & ALL_BUT_COLOR;
138 turn_on = (newmode & ~previous_attr) & ALL_BUT_COLOR;
140 SetColorsIf(((pair == 0) && !fix_pair0), previous_attr, previous_pair);
142 if (newmode == A_NORMAL) {
143 if ((previous_attr & A_ALTCHARSET) && exit_alt_charset_mode) {
144 doPut(exit_alt_charset_mode);
145 previous_attr &= ~A_ALTCHARSET;
148 if (exit_attribute_mode) {
149 doPut(exit_attribute_mode);
151 if (!SP_PARM || SP_PARM->_use_rmul) {
152 TurnOff(A_UNDERLINE, exit_underline_mode);
154 if (!SP_PARM || SP_PARM->_use_rmso) {
155 TurnOff(A_STANDOUT, exit_standout_mode);
158 previous_attr &= ALL_BUT_COLOR;
162 SetColorsIf((pair != 0) || fix_pair0, previous_attr, previous_pair);
163 } else if (set_attributes) {
164 if (turn_on || turn_off) {
165 TPUTS_TRACE("set_attributes");
166 tputs(TPARM_9(set_attributes,
167 (newmode & A_STANDOUT) != 0,
168 (newmode & A_UNDERLINE) != 0,
169 (newmode & A_REVERSE) != 0,
170 (newmode & A_BLINK) != 0,
171 (newmode & A_DIM) != 0,
172 (newmode & A_BOLD) != 0,
173 (newmode & A_INVIS) != 0,
174 (newmode & A_PROTECT) != 0,
175 (newmode & A_ALTCHARSET) != 0), 1, outc);
176 previous_attr &= ALL_BUT_COLOR;
179 SetColorsIf((pair != 0) || fix_pair0, previous_attr, previous_pair);
182 TR(TRACE_ATTRS, ("turning %s off", _traceattr(turn_off)));
184 TurnOff(A_ALTCHARSET, exit_alt_charset_mode);
186 if (!SP_PARM || SP_PARM->_use_rmul) {
187 TurnOff(A_UNDERLINE, exit_underline_mode);
190 if (!SP_PARM || SP_PARM->_use_rmso) {
191 TurnOff(A_STANDOUT, exit_standout_mode);
194 if (turn_off && exit_attribute_mode) {
195 doPut(exit_attribute_mode);
196 turn_on |= (newmode & ALL_BUT_COLOR);
197 previous_attr &= ALL_BUT_COLOR;
200 SetColorsIf((pair != 0) || fix_pair0, previous_attr, previous_pair);
202 TR(TRACE_ATTRS, ("turning %s on", _traceattr(turn_on)));
204 TurnOn(A_ALTCHARSET, enter_alt_charset_mode);
205 TurnOn(A_BLINK, enter_blink_mode);
206 TurnOn(A_BOLD, enter_bold_mode);
207 TurnOn(A_DIM, enter_dim_mode);
208 TurnOn(A_REVERSE, enter_reverse_mode);
209 TurnOn(A_STANDOUT, enter_standout_mode);
210 TurnOn(A_PROTECT, enter_protected_mode);
211 TurnOn(A_INVIS, enter_secure_mode);
212 TurnOn(A_UNDERLINE, enter_underline_mode);
213 #if USE_WIDEC_SUPPORT
214 TurnOn(A_HORIZONTAL, enter_horizontal_hl_mode);
215 TurnOn(A_LEFT, enter_left_hl_mode);
216 TurnOn(A_LOW, enter_low_hl_mode);
217 TurnOn(A_RIGHT, enter_right_hl_mode);
218 TurnOn(A_TOP, enter_top_hl_mode);
219 TurnOn(A_VERTICAL, enter_vertical_hl_mode);
226 newmode |= A_REVERSE;
229 SetAttr(SCREEN_ATTRS(SP_PARM), newmode);
230 SetPair(SCREEN_ATTRS(SP_PARM), pair);
232 previous_attr = newmode;
233 previous_pair = pair;
238 T((T_CALLED("vid_puts(%s,%d)"), _traceattr(newmode), pair));
239 set_color(newmode, pair);
240 returnCode(vidputs(newmode, outc));
246 NCURSES_SP_NAME(vid_attr) (NCURSES_SP_DCLx
251 T((T_CALLED("vid_attr(%s,%d)"), _traceattr(newmode), pair));
252 returnCode(vid_puts(newmode, pair, opts, _nc_outch));
257 vid_puts(attr_t newmode, short pair, void *opts GCC_UNUSED, int (*outc) (int))
259 return NCURSES_SP_NAME(vid_puts) (CURRENT_SCREEN, newmode, pair, opts, outc);
263 vid_attr(attr_t newmode, short pair, void *opts)
265 return NCURSES_SP_NAME(vid_attr) (CURRENT_SCREEN, newmode, pair, opts);
270 * This implementation uses the same mask values for A_xxx and WA_xxx, so
271 * we can use termattrs() for part of the logic.
273 NCURSES_EXPORT(attr_t)
278 T((T_CALLED("term_attrs()")));
281 /* these are only supported for wide-character mode */
282 if (enter_horizontal_hl_mode)
283 attrs |= WA_HORIZONTAL;
284 if (enter_left_hl_mode)
286 if (enter_low_hl_mode)
288 if (enter_right_hl_mode)
290 if (enter_top_hl_mode)
292 if (enter_vertical_hl_mode)
293 attrs |= WA_VERTICAL;