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/* $OpenBSD: lib_vid_attr.c,v 1.1 2010/09/06 17:26:17 nicm Exp $ */ |
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/**************************************************************************** |
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* Copyright (c) 2002-2006,2007 Free Software Foundation, Inc. * |
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* * |
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* Permission is hereby granted, free of charge, to any person obtaining a * |
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* copy of this software and associated documentation files (the * |
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* "Software"), to deal in the Software without restriction, including * |
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* without limitation the rights to use, copy, modify, merge, publish, * |
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* distribute, distribute with modifications, sublicense, and/or sell * |
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* copies of the Software, and to permit persons to whom the Software is * |
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* furnished to do so, subject to the following conditions: * |
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* * |
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* The above copyright notice and this permission notice shall be included * |
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* in all copies or substantial portions of the Software. * |
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* * |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * |
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * |
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * |
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* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * |
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * |
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * |
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* THE USE OR OTHER DEALINGS IN THE SOFTWARE. * |
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* * |
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* Except as contained in this notice, the name(s) of the above copyright * |
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* holders shall not be used in advertising or otherwise to promote the * |
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* sale, use or other dealings in this Software without prior written * |
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* authorization. * |
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****************************************************************************/ |
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/**************************************************************************** |
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* Author: Thomas E. Dickey * |
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****************************************************************************/ |
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#include <curses.priv.h> |
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#include <term.h> |
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MODULE_ID("$Id: lib_vid_attr.c,v 1.1 2010/09/06 17:26:17 nicm Exp $") |
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#define doPut(mode) TPUTS_TRACE(#mode); tputs(mode, 1, outc) |
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#define TurnOn(mask,mode) \ |
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if ((turn_on & mask) && mode) { doPut(mode); } |
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#define TurnOff(mask,mode) \ |
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if ((turn_off & mask) && mode) { doPut(mode); turn_off &= ~mask; } |
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/* if there is no current screen, assume we *can* do color */ |
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#define SetColorsIf(why, old_attr, old_pair) \ |
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if (can_color && (why)) { \ |
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TR(TRACE_ATTRS, ("old pair = %d -- new pair = %d", old_pair, pair)); \ |
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if ((pair != old_pair) \ |
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|| (fix_pair0 && (pair == 0)) \ |
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|| (reverse ^ ((old_attr & A_REVERSE) != 0))) { \ |
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_nc_do_color(old_pair, pair, reverse, outc); \ |
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} \ |
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} |
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#define set_color(mode, pair) mode &= ALL_BUT_COLOR; mode |= COLOR_PAIR(pair) |
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NCURSES_EXPORT(int) |
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vid_puts(attr_t newmode, short pair, void *opts GCC_UNUSED, int (*outc) (int)) |
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{ |
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#if NCURSES_EXT_COLORS |
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static attr_t previous_attr = A_NORMAL; |
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static int previous_pair = 0; |
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attr_t turn_on, turn_off; |
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bool reverse = FALSE; |
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bool can_color = (SP == 0 || SP->_coloron); |
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#if NCURSES_EXT_FUNCS |
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bool fix_pair0 = (SP != 0 && SP->_coloron && !SP->_default_color); |
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#else |
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#define fix_pair0 FALSE |
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#endif |
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newmode &= A_ATTRIBUTES; |
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T((T_CALLED("vid_puts(%s,%d)"), _traceattr(newmode), pair)); |
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/* this allows us to go on whether or not newterm() has been called */ |
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if (SP) { |
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previous_attr = AttrOf(SCREEN_ATTRS(SP)); |
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previous_pair = GetPair(SCREEN_ATTRS(SP)); |
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} |
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TR(TRACE_ATTRS, ("previous attribute was %s, %d", |
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_traceattr(previous_attr), previous_pair)); |
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#if !USE_XMC_SUPPORT |
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if ((SP != 0) |
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&& (magic_cookie_glitch > 0)) |
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newmode &= ~(SP->_xmc_suppress); |
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#endif |
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/* |
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* If we have a terminal that cannot combine color with video |
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* attributes, use the colors in preference. |
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*/ |
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if ((pair != 0 |
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|| fix_pair0) |
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&& (no_color_video > 0)) { |
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/* |
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* If we had chosen the A_xxx definitions to correspond to the |
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* no_color_video mask, we could simply shift it up and mask off the |
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* attributes. But we did not (actually copied Solaris' definitions). |
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* However, this is still simpler/faster than a lookup table. |
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* |
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* The 63 corresponds to A_STANDOUT, A_UNDERLINE, A_REVERSE, A_BLINK, |
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* A_DIM, A_BOLD which are 1:1 with no_color_video. The bits that |
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* correspond to A_INVIS, A_PROTECT (192) must be shifted up 1 and |
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* A_ALTCHARSET (256) down 2 to line up. We use the NCURSES_BITS |
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* macro so this will work properly for the wide-character layout. |
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*/ |
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unsigned value = no_color_video; |
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attr_t mask = NCURSES_BITS((value & 63) |
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| ((value & 192) << 1) |
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| ((value & 256) >> 2), 8); |
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if ((mask & A_REVERSE) != 0 |
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&& (newmode & A_REVERSE) != 0) { |
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reverse = TRUE; |
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mask &= ~A_REVERSE; |
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} |
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newmode &= ~mask; |
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} |
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if (newmode == previous_attr |
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&& pair == previous_pair) |
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returnCode(OK); |
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if (reverse) { |
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newmode &= ~A_REVERSE; |
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} |
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turn_off = (~newmode & previous_attr) & ALL_BUT_COLOR; |
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turn_on = (newmode & ~previous_attr) & ALL_BUT_COLOR; |
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SetColorsIf(((pair == 0) && !fix_pair0), previous_attr, previous_pair); |
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if (newmode == A_NORMAL) { |
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if ((previous_attr & A_ALTCHARSET) && exit_alt_charset_mode) { |
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doPut(exit_alt_charset_mode); |
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previous_attr &= ~A_ALTCHARSET; |
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} |
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if (previous_attr) { |
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if (exit_attribute_mode) { |
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doPut(exit_attribute_mode); |
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} else { |
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if (!SP || SP->_use_rmul) { |
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TurnOff(A_UNDERLINE, exit_underline_mode); |
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} |
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if (!SP || SP->_use_rmso) { |
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TurnOff(A_STANDOUT, exit_standout_mode); |
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} |
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} |
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previous_attr &= ALL_BUT_COLOR; |
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previous_pair = 0; |
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} |
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SetColorsIf((pair != 0) || fix_pair0, previous_attr, previous_pair); |
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} else if (set_attributes) { |
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if (turn_on || turn_off) { |
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TPUTS_TRACE("set_attributes"); |
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tputs(TPARM_9(set_attributes, |
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(newmode & A_STANDOUT) != 0, |
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(newmode & A_UNDERLINE) != 0, |
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(newmode & A_REVERSE) != 0, |
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(newmode & A_BLINK) != 0, |
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(newmode & A_DIM) != 0, |
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(newmode & A_BOLD) != 0, |
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(newmode & A_INVIS) != 0, |
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(newmode & A_PROTECT) != 0, |
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(newmode & A_ALTCHARSET) != 0), 1, outc); |
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previous_attr &= ALL_BUT_COLOR; |
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previous_pair = 0; |
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} |
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SetColorsIf((pair != 0) || fix_pair0, previous_attr, previous_pair); |
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} else { |
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TR(TRACE_ATTRS, ("turning %s off", _traceattr(turn_off))); |
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TurnOff(A_ALTCHARSET, exit_alt_charset_mode); |
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if (!SP || SP->_use_rmul) { |
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TurnOff(A_UNDERLINE, exit_underline_mode); |
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} |
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if (!SP || SP->_use_rmso) { |
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TurnOff(A_STANDOUT, exit_standout_mode); |
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} |
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if (turn_off && exit_attribute_mode) { |
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doPut(exit_attribute_mode); |
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turn_on |= (newmode & ALL_BUT_COLOR); |
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previous_attr &= ALL_BUT_COLOR; |
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previous_pair = 0; |
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} |
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SetColorsIf((pair != 0) || fix_pair0, previous_attr, previous_pair); |
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TR(TRACE_ATTRS, ("turning %s on", _traceattr(turn_on))); |
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/* *INDENT-OFF* */ |
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TurnOn(A_ALTCHARSET, enter_alt_charset_mode); |
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TurnOn(A_BLINK, enter_blink_mode); |
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TurnOn(A_BOLD, enter_bold_mode); |
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TurnOn(A_DIM, enter_dim_mode); |
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TurnOn(A_REVERSE, enter_reverse_mode); |
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TurnOn(A_STANDOUT, enter_standout_mode); |
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TurnOn(A_PROTECT, enter_protected_mode); |
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TurnOn(A_INVIS, enter_secure_mode); |
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TurnOn(A_UNDERLINE, enter_underline_mode); |
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#if USE_WIDEC_SUPPORT |
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TurnOn(A_HORIZONTAL, enter_horizontal_hl_mode); |
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TurnOn(A_LEFT, enter_left_hl_mode); |
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TurnOn(A_LOW, enter_low_hl_mode); |
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TurnOn(A_RIGHT, enter_right_hl_mode); |
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TurnOn(A_TOP, enter_top_hl_mode); |
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TurnOn(A_VERTICAL, enter_vertical_hl_mode); |
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#endif |
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/* *INDENT-ON* */ |
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} |
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if (reverse) |
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newmode |= A_REVERSE; |
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if (SP) { |
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SetAttr(SCREEN_ATTRS(SP), newmode); |
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SetPair(SCREEN_ATTRS(SP), pair); |
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} else { |
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previous_attr = newmode; |
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previous_pair = pair; |
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} |
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returnCode(OK); |
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#else |
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T((T_CALLED("vid_puts(%s,%d)"), _traceattr(newmode), pair)); |
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set_color(newmode, pair); |
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returnCode(vidputs(newmode, outc)); |
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#endif |
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} |
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#undef vid_attr |
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NCURSES_EXPORT(int) |
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vid_attr(attr_t newmode, short pair, void *opts) |
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{ |
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T((T_CALLED("vid_attr(%s,%d)"), _traceattr(newmode), pair)); |
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returnCode(vid_puts(newmode, pair, opts, _nc_outch)); |
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} |
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/* |
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* This implementation uses the same mask values for A_xxx and WA_xxx, so |
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* we can use termattrs() for part of the logic. |
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*/ |
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NCURSES_EXPORT(attr_t) |
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term_attrs(void) |
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{ |
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attr_t attrs; |
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T((T_CALLED("term_attrs()"))); |
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attrs = termattrs(); |
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/* these are only supported for wide-character mode */ |
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if (enter_horizontal_hl_mode) |
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attrs |= WA_HORIZONTAL; |
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if (enter_left_hl_mode) |
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attrs |= WA_LEFT; |
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if (enter_low_hl_mode) |
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attrs |= WA_LOW; |
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if (enter_right_hl_mode) |
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attrs |= WA_RIGHT; |
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if (enter_top_hl_mode) |
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attrs |= WA_TOP; |
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if (enter_vertical_hl_mode) |
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attrs |= WA_VERTICAL; |
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returnAttr(attrs); |
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} |