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https://github.com/Aigor44/ncursesw-morphos.git
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78e49873c6
+ add configure script --enable-sp-funcs to enable the new set of
extended functions.
+ start integrating patches by Juergen Pfeifer:
+ add extended functions which specify the SCREEN pointer for several
curses functions which use the global SP (these are incomplete;
some internals work is needed to complete these).
+ add special cases to configure script for MinGW port.
348 lines
10 KiB
C
348 lines
10 KiB
C
/****************************************************************************
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* Copyright (c) 1998-2007,2009 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: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
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* and: Eric S. Raymond <esr@snark.thyrsus.com> *
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* and: Thomas E. Dickey 1996-on *
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* and: Juergen Pfeifer 2009 *
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****************************************************************************/
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/*
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* vidputs(newmode, outc)
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*
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* newmode is taken to be the logical 'or' of the symbols in curses.h
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* representing graphic renditions. The terminal is set to be in all of
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* the given modes, if possible.
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*
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* if the new attribute is normal
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* if exit-alt-char-set exists
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* emit it
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* emit exit-attribute-mode
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* else if set-attributes exists
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* use it to set exactly what you want
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* else
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* if exit-attribute-mode exists
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* turn off everything
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* else
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* turn off those which can be turned off and aren't in
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* newmode.
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* turn on each mode which should be on and isn't, one by one
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*
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* NOTE that this algorithm won't achieve the desired mix of attributes
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* in some cases, but those are probably just those cases in which it is
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* actually impossible, anyway, so...
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*
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* NOTE that we cannot assume that there's no interaction between color
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* and other attribute resets. So each time we reset color (or other
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* attributes) we'll have to be prepared to restore the other.
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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_vidattr.c,v 1.50 2009/02/15 00:51:03 tom 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) \
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if (can_color && (why)) { \
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int old_pair = PAIR_NUMBER(old_attr); \
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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 PreviousAttr _nc_prescreen.previous_attr
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NCURSES_EXPORT(int)
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vidputs(chtype newmode, int (*outc) (int))
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{
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attr_t turn_on, turn_off;
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int pair;
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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("vidputs(%s)"), _traceattr(newmode)));
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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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PreviousAttr = AttrOf(SCREEN_ATTRS(SP));
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TR(TRACE_ATTRS, ("previous attribute was %s", _traceattr(PreviousAttr)));
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if ((SP != 0)
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&& (magic_cookie_glitch > 0)) {
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#if USE_XMC_SUPPORT
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static const chtype table[] =
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{
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A_STANDOUT,
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A_UNDERLINE,
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A_REVERSE,
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A_BLINK,
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A_DIM,
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A_BOLD,
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A_INVIS,
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A_PROTECT,
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};
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unsigned n;
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int used = 0;
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int limit = (max_attributes <= 0) ? 1 : max_attributes;
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chtype retain = 0;
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/*
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* Limit the number of attribute bits set in the newmode according to
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* the terminfo max_attributes value.
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*/
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for (n = 0; n < SIZEOF(table); ++n) {
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if ((table[n] & SP->_ok_attributes) == 0) {
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newmode &= ~table[n];
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} else if ((table[n] & newmode) != 0) {
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if (used++ >= limit) {
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newmode &= ~table[n];
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if (newmode == retain)
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break;
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} else {
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retain = newmode;
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}
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}
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}
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#else
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newmode &= ~(SP->_xmc_suppress);
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#endif
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TR(TRACE_ATTRS, ("suppressed attribute is %s", _traceattr(newmode)));
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}
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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 (((newmode & A_COLOR) != 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 == PreviousAttr)
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returnCode(OK);
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pair = PAIR_NUMBER(newmode);
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if (reverse) {
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newmode &= ~A_REVERSE;
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}
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turn_off = (~newmode & PreviousAttr) & ALL_BUT_COLOR;
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turn_on = (newmode & ~PreviousAttr) & ALL_BUT_COLOR;
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SetColorsIf(((pair == 0) && !fix_pair0), PreviousAttr);
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if (newmode == A_NORMAL) {
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if ((PreviousAttr & A_ALTCHARSET) && exit_alt_charset_mode) {
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doPut(exit_alt_charset_mode);
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PreviousAttr &= ~A_ALTCHARSET;
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}
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if (PreviousAttr) {
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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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PreviousAttr &= ALL_BUT_COLOR;
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}
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SetColorsIf((pair != 0) || fix_pair0, PreviousAttr);
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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(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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PreviousAttr &= ALL_BUT_COLOR;
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}
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SetColorsIf((pair != 0) || fix_pair0, PreviousAttr);
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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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PreviousAttr &= ALL_BUT_COLOR;
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}
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SetColorsIf((pair != 0) || fix_pair0, PreviousAttr);
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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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else
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PreviousAttr = newmode;
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returnCode(OK);
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}
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NCURSES_EXPORT(int)
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vidattr(chtype newmode)
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{
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T((T_CALLED("vidattr(%s)"), _traceattr(newmode)));
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returnCode(vidputs(newmode, _nc_outch));
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}
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NCURSES_EXPORT(chtype)
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NCURSES_SP_NAME(termattrs) (NCURSES_SP_DCL0)
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{
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chtype attrs = A_NORMAL;
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T((T_CALLED("termattrs()")));
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if (enter_alt_charset_mode)
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attrs |= A_ALTCHARSET;
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if (enter_blink_mode)
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attrs |= A_BLINK;
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if (enter_bold_mode)
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attrs |= A_BOLD;
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if (enter_dim_mode)
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attrs |= A_DIM;
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if (enter_reverse_mode)
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attrs |= A_REVERSE;
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if (enter_standout_mode)
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attrs |= A_STANDOUT;
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if (enter_protected_mode)
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attrs |= A_PROTECT;
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if (enter_secure_mode)
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attrs |= A_INVIS;
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if (enter_underline_mode)
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attrs |= A_UNDERLINE;
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if (SP_PARM->_coloron)
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attrs |= A_COLOR;
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returnChar(attrs);
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}
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#if NCURSES_SP_FUNCS
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NCURSES_EXPORT(chtype)
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termattrs(void)
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{
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return NCURSES_SP_NAME(termattrs) (CURRENT_SCREEN);
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}
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#endif
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