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PDCursesMod/pdcurses/attr.c

431 lines
11 KiB
C

/* PDCursesMod */
#include <curspriv.h>
#include <assert.h>
/*man-start**************************************************************
attr
----
### Synopsis
int attroff(chtype attrs);
int wattroff(WINDOW *win, chtype attrs);
int attron(chtype attrs);
int wattron(WINDOW *win, chtype attrs);
int attrset(chtype attrs);
int wattrset(WINDOW *win, chtype attrs);
int standend(void);
int wstandend(WINDOW *win);
int standout(void);
int wstandout(WINDOW *win);
int color_set(short color_pair, void *opts);
int wcolor_set(WINDOW *win, short color_pair, void *opts);
int attr_get(attr_t *attrs, short *color_pair, void *opts);
int attr_off(attr_t attrs, void *opts);
int attr_on(attr_t attrs, void *opts);
int attr_set(attr_t attrs, short color_pair, void *opts);
int wattr_get(WINDOW *win, attr_t *attrs, short *color_pair,
void *opts);
int wattr_off(WINDOW *win, attr_t attrs, void *opts);
int wattr_on(WINDOW *win, attr_t attrs, void *opts);
int wattr_set(WINDOW *win, attr_t attrs, short color_pair,
void *opts);
int chgat(int n, attr_t attr, short color, const void *opts);
int mvchgat(int y, int x, int n, attr_t attr, short color,
const void *opts);
int mvwchgat(WINDOW *win, int y, int x, int n, attr_t attr,
short color, const void *opts);
int wchgat(WINDOW *win, int n, attr_t attr, short color,
const void *opts);
chtype getattrs(const WINDOW *win);
int underend(void);
int wunderend(WINDOW *win);
int underscore(void);
int wunderscore(WINDOW *win);
### Description
These functions manipulate the current attributes and/or colors of
the named window. These attributes can be any combination of
A_STANDOUT, A_REVERSE, A_BOLD, A_DIM, A_BLINK, A_UNDERLINE. These
constants are defined in <curses.h> and can be combined with the
bitwise-OR operator (|).
The current attributes of a window are applied to all chtypes that
are written into the window with waddch(). Attributes are a property
of the chtype, and move with the character through any scrolling or
insert/delete operations.
wattrset() sets the current attributes of the given window to attrs.
attrset() is the stdscr version.
wattroff() turns off the named attributes without affecting any other
attributes; wattron() turns them on.
wcolor_set() sets the window color to the value of color_pair. If
opts is non-NULL, it is treated as a pointer to an integer containing
the desired color pair, and color_pair is ignored (this is an ncurses
extension).
standout() is the same as attron(A_STANDOUT). standend() is the same
as attrset(A_NORMAL); that is, it turns off all attributes.
The attr_* and wattr_* functions are intended for use with the WA_*
attributes. In PDCurses, these are the same as A_*, and there is no
difference in behavior from the chtype-based functions. If opts is
non-NULL, it is used as a pointer to an integer and the color pair
is stored in it (this is an ncurses and PDCursesMod extension).
wattr_get() retrieves the attributes and color pair for the specified
window.
wchgat() sets the color pair and attributes for the next n cells on
the current line of a given window, without changing the existing
text, or alterting the window's attributes. An n of -1 extends the
change to the edge of the window. The changes take effect
immediately. If opts is non-NULL, it is treated as a pointer to
an integer containing the desired color pair, and color_pair is
ignored (this is an ncurses extension).
wunderscore() turns on the A_UNDERLINE attribute; wunderend() turns
it off. underscore() and underend() are the stdscr versions.
### Return Value
All functions return OK on success and ERR on error.
### Portability
X/Open ncurses NetBSD
attroff Y Y Y
wattroff Y Y Y
attron Y Y Y
wattron Y Y Y
attrset Y Y Y
wattrset Y Y Y
standend Y Y Y
wstandend Y Y Y
standout Y Y Y
wstandout Y Y Y
color_set Y Y Y
wcolor_set Y Y Y
attr_get Y Y Y
wattr_get Y Y Y
attr_on Y Y Y
wattr_on Y Y Y
attr_off Y Y Y
wattr_off Y Y Y
attr_set Y Y Y
wattr_set Y Y Y
chgat Y Y Y
wchgat Y Y Y
mvchgat Y Y Y
mvwchgat Y Y Y
getattrs - Y Y
underend - - Y
wunderend - - Y
underscore - - Y
wunderscore - - Y
**man-end****************************************************************/
int wattroff(WINDOW *win, chtype attrs)
{
PDC_LOG(("wattroff() - called\n"));
assert( win);
if (!win)
return ERR;
win->_attrs &= (~attrs & A_ATTRIBUTES);
return OK;
}
int attroff(chtype attrs)
{
PDC_LOG(("attroff() - called\n"));
return wattroff(stdscr, attrs);
}
int wattron(WINDOW *win, chtype attrs)
{
chtype newcolr, oldcolr, newattr, oldattr;
PDC_LOG(("wattron() - called\n"));
assert( win);
if (!win)
return ERR;
if ((win->_attrs & A_COLOR) && (attrs & A_COLOR))
{
oldcolr = win->_attrs & A_COLOR;
oldattr = win->_attrs ^ oldcolr;
newcolr = attrs & A_COLOR;
newattr = (attrs & A_ATTRIBUTES) ^ newcolr;
newattr |= oldattr;
win->_attrs = newattr | newcolr;
}
else
win->_attrs |= (attrs & A_ATTRIBUTES);
return OK;
}
int attron(chtype attrs)
{
PDC_LOG(("attron() - called\n"));
return wattron(stdscr, attrs);
}
int wattrset(WINDOW *win, chtype attrs)
{
PDC_LOG(("wattrset() - called\n"));
assert( win);
if (!win)
return ERR;
win->_attrs = attrs & A_ATTRIBUTES;
return OK;
}
int attrset(chtype attrs)
{
PDC_LOG(("attrset() - called\n"));
return wattrset(stdscr, attrs);
}
int standend(void)
{
PDC_LOG(("standend() - called\n"));
return wattrset(stdscr, A_NORMAL);
}
int standout(void)
{
PDC_LOG(("standout() - called\n"));
return wattrset(stdscr, A_STANDOUT);
}
int wstandend(WINDOW *win)
{
PDC_LOG(("wstandend() - called\n"));
return wattrset(win, A_NORMAL);
}
int wstandout(WINDOW *win)
{
PDC_LOG(("wstandout() - called\n"));
return wattrset(win, A_STANDOUT);
}
chtype getattrs(const WINDOW *win)
{
assert( win);
return win ? win->_attrs : 0;
}
int wcolor_set(WINDOW *win, short color_pair, void *opts)
{
const int integer_color_pair = (opts ? *(int *)opts : (int)color_pair);
PDC_LOG(("wcolor_set() - called\n"));
assert( win);
if (!win)
return ERR;
win->_attrs = (win->_attrs & ~A_COLOR) | COLOR_PAIR(integer_color_pair);
return OK;
}
int color_set(short color_pair, void *opts)
{
PDC_LOG(("color_set() - called\n"));
return wcolor_set(stdscr, color_pair, opts);
}
int wattr_get(WINDOW *win, attr_t *attrs, short *color_pair, void *opts)
{
PDC_LOG(("wattr_get() - called\n"));
assert( win);
if (!win)
return ERR;
if (attrs)
*attrs = win->_attrs & (A_ATTRIBUTES & ~A_COLOR);
if (color_pair)
*color_pair = (short)PAIR_NUMBER(win->_attrs);
if( opts)
*(int *)opts = (int)PAIR_NUMBER( win->_attrs);
return OK;
}
int attr_get(attr_t *attrs, short *color_pair, void *opts)
{
PDC_LOG(("attr_get() - called\n"));
return wattr_get(stdscr, attrs, color_pair, opts);
}
int wattr_off(WINDOW *win, attr_t attrs, void *opts)
{
PDC_LOG(("wattr_off() - called\n"));
INTENTIONALLY_UNUSED_PARAMETER( opts);
assert( !opts);
return wattroff(win, attrs);
}
int attr_off(attr_t attrs, void *opts)
{
PDC_LOG(("attr_off() - called\n"));
INTENTIONALLY_UNUSED_PARAMETER( opts);
assert( !opts);
return wattroff(stdscr, attrs);
}
int wattr_on(WINDOW *win, attr_t attrs, void *opts)
{
PDC_LOG(("wattr_off() - called\n"));
if( opts)
attrs = (attrs & ~A_COLOR) | COLOR_PAIR( *(int *)opts);
return wattron(win, attrs);
}
int attr_on(attr_t attrs, void *opts)
{
PDC_LOG(("attr_on() - called\n"));
return wattr_on(stdscr, attrs, opts);
}
int wattr_set(WINDOW *win, attr_t attrs, short color_pair, void *opts)
{
const int integer_color_pair = (opts ? *(int *)opts : (int)color_pair);
PDC_LOG(("wattr_set() - called\n"));
assert( win);
if (!win)
return ERR;
win->_attrs = (attrs & (A_ATTRIBUTES & ~A_COLOR)) | COLOR_PAIR(integer_color_pair);
return OK;
}
int attr_set(attr_t attrs, short color_pair, void *opts)
{
PDC_LOG(("attr_set() - called\n"));
return wattr_set(stdscr, attrs, color_pair, opts);
}
int wchgat(WINDOW *win, int n, attr_t attr, short color, const void *opts)
{
chtype *dest, newattr;
int startpos, endpos;
const int integer_color_pair = (opts ? *(int *)opts : (int)color);
PDC_LOG(("wchgat() - called\n"));
assert( win);
if (!win)
return ERR;
newattr = (attr & A_ATTRIBUTES) | COLOR_PAIR(integer_color_pair);
startpos = win->_curx;
endpos = ((n < 0) ? win->_maxx : min(startpos + n, win->_maxx)) - 1;
dest = win->_y[win->_cury];
for (n = startpos; n <= endpos; n++)
dest[n] = (dest[n] & A_CHARTEXT) | newattr;
PDC_mark_cells_as_changed( win, win->_cury, startpos, endpos);
PDC_sync(win);
return OK;
}
int chgat(int n, attr_t attr, short color, const void *opts)
{
PDC_LOG(("chgat() - called\n"));
return wchgat(stdscr, n, attr, color, opts);
}
int mvchgat(int y, int x, int n, attr_t attr, short color, const void *opts)
{
PDC_LOG(("mvchgat() - called\n"));
if (move(y, x) == ERR)
return ERR;
return wchgat(stdscr, n, attr, color, opts);
}
int mvwchgat(WINDOW *win, int y, int x, int n, attr_t attr, short color,
const void *opts)
{
PDC_LOG(("mvwchgat() - called\n"));
if (wmove(win, y, x) == ERR)
return ERR;
return wchgat(win, n, attr, color, opts);
}
int underend(void)
{
PDC_LOG(("underend() - called\n"));
return wattroff(stdscr, A_UNDERLINE);
}
int wunderend(WINDOW *win)
{
PDC_LOG(("wunderend() - called\n"));
return wattroff(win, A_UNDERLINE);
}
int underscore(void)
{
PDC_LOG(("underscore() - called\n"));
return wattron(stdscr, A_UNDERLINE);
}
int wunderscore(WINDOW *win)
{
PDC_LOG(("wunderscore() - called\n"));
return wattron(win, A_UNDERLINE);
}